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Hexapoda (including Insecta)

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Image Subject Name Scientific Name Description
5432982 southern pine beetle Dendroctonus frontalis
5432983 southern pine beetle Dendroctonus frontalis
5432985 southern pine beetle Dendroctonus frontalis
5432986 southern pine beetle Dendroctonus frontalis
1593087 eastern larch beetle Dendroctonus simplex Tamarack infested with eastern larch beetle, bark removal in late winter due to woodpecker probing. 
5495011 flatheaded fir borer Phaenops drummondi Douglas-fir killed by flatheaded fir borer. Woodpeckers have been feeding on the larvae
5495035 blue gum chalcid Leptocybe invasa severe Chalcid infestation affects tree growth
5495026 pine reproduction weevil Cylindrocopturus eatoni diagnostic puncture wounds on needles made by adults
5495027 pine reproduction weevil Cylindrocopturus eatoni inner bark of infested stem, larval damage
5495028 pine reproduction weevil Cylindrocopturus eatoni larval damage, wood surface of infested stem
5495019 south african cossid moth Coryphodema tristis Stem breakage of tree due to moth tunneling
5495014 south african cossid moth Coryphodema tristis Stem of tree infested with the moth
5495015 south african cossid moth Coryphodema tristis Stem of tree infested by the moth
5490303 Ips engraver beetles Ips spp. Tops of ponderosa pine killed by ips beetles
5490304 Ips engraver beetles Ips spp. Tops of ponderosa pine killed by ips beetles
5494028 banana root borer Cosmopolites sordidus
5485677 hemlock woolly adelgid Adelges tsugae Hemlock mortality caused by Hemlock Woolly Adelgid (Adelges tsugae). 
5492245 Geometrid moth Milionia basalis
5488786 fall webworm Hyphantria cunea Heavily infested walnut along roadside
5466509 armored scale Maskellia globosa
5466510 armored scale Maskellia globosa
5488695 Asian chestnut gall wasp Dryocosmus kuriphilus Developing Dryocosmus kuriphilus galls on European chestnut
5488692 peach bark beetle Phloeotribus liminaris Mass of gum on bark of black cherry.
5006052 onion thrips Thrips tabaci Illustration by Arthur Cushman
5006074 striped cucumber beetle Acalymma vittatum Illustration by Arthur Cushman
5006077 cabbage white Pieris rapae Illustration of life cycle by Mary Benson.
2183047 smaller European elm bark beetle Scolytus multistriatus
5006028 plum curculio Conotrachelus nenuphar Illustration by Arthur Cushman
1292002 blade spruce Gall adelgid Adelges laricis Adelges laricis (right) and Sacchiphantes abietis (left) galls.
5486079 leek moth Acrolepiopsis assectella
5486082 leek moth Acrolepiopsis assectella
5486083 leek moth Acrolepiopsis assectella
5477167 balsam woolly adelgid Adelges piceae
5477168 balsam woolly adelgid Adelges piceae
5477169 balsam woolly adelgid Adelges piceae
5477170 balsam woolly adelgid Adelges piceae
5477171 balsam woolly adelgid Adelges piceae
5477174 balsam woolly adelgid Adelges piceae
5477175 balsam woolly adelgid Adelges piceae
5477176 balsam woolly adelgid Adelges piceae
5477177 balsam woolly adelgid Adelges piceae
5477179 balsam woolly adelgid Adelges piceae
5477150 balsam woolly adelgid Adelges piceae
2103064 six-spined engraver beetle Ips sexdentatus Exit hole in bark, on burnt out area of Austrian pine in Slovene Karst region, Sežana, Slovenia, April 2003.
5212014 cooley spruce gall adelgid Adelges cooleyi 6/30/07; On a small spruce tree in the park. Caused by Aphid-like insects that cause the plant to produce these characteristic galls.
5378097 long-horned beetle Plagionotus arcuatus Exit holes
5477159 balsam woolly adelgid Adelges piceae
1398069 acorn-plum gall Amphibolips quercusjuglans galls
5392770 Asian longhorned beetle Anoplophora glabripennis exit sites
5378096 leaf blotch miner moth Phyllonorycter roboris Exit hole.
1329045 gall midge Mikiola fagi Leaf galls. Italy
5379264 beech splendor beetle Agrilus viridis
1309007 oak rough bulletgall wasp Disholcaspis quercusmamma Galls, Fort Collins, CO.
5212013 cooley spruce gall adelgid Adelges cooleyi 6/30/07; On a small spruce tree in the park. Caused by Aphid-like insects that cause the plant to produce these characteristic galls.
1626092 horned oak gall Callirhytis cornigera Horned oak galls are hard, woody swellings on the twigs. Small horns protrude through the surface of the gall, and a small stingless wasp develops in each horn.
1258231 eastern spruce gall adelgid Adelges abietis Gall
5110034 emerald ash borer Agrilus planipennis exit hole
5016051 emerald ash borer Agrilus planipennis exit hole
1593011 white pine weevil Pissodes strobi Older weevil attack that killed the existing terminal when the tree was at the height of damaged whorl.  The dead terminal was replaced by severl competing laterals that created a dense cluster of branches at the whorl. 
5388292 twolined chestnut borer Agrilus bilineatus Chestnut borer has infested this red oak. 
2109018 gall midge Taxodiomyia cupressi Obconic needle galls on Bald Cypress
5388254 lace bugs Corythucha spp.
5001086 gall midges Cone galls
5001087 gall midges Cone galls
1258236 eastern spruce gall adelgid Adelges abietis Empty gall
2122020 cooley spruce gall adelgid Adelges cooleyi Gall
1398253 poplar twiggall fly Hexomyza schineri Twig galls
5289050 southern pine beetle Dendroctonus frontalis emergence holes
5435636 armyworm Pseudaletia unipuncta
5377977 Sirex woodwasp Sirex noctilio Exit holes and galleries.
5378667 large timberworm Elateroides dermestoides
5378668 large timberworm Elateroides dermestoides
5392748 Asian longhorned beetle Anoplophora glabripennis Egg sites and Exit holes
2122021 cooley spruce gall adelgid Adelges cooleyi Gall. Fort Collins, CO
5378006 striped ambrosia beetle Trypodendron lineatum Exit holes.
5378012 large timberworm Elateroides dermestoides Exit holes.
5016052 emerald ash borer Agrilus planipennis emergence hole
5377998 striped ambrosia beetle Trypodendron lineatum Exit holes.
5377999 striped ambrosia beetle Trypodendron lineatum Exit holes.
5378001 striped ambrosia beetle Trypodendron lineatum Exit holes.
5377997 Sirex woodwasps Sirex spp. Exit hole
2168063 aphid Tetraneura ulmi galls
5377969 steelblue jewel beetle Phaenops cyanea Exit holes.
5473258 beet armyworm Spodoptera exigua Leaf damage caused by beet armyworm feeding; Spodoptera exigua
5473259 beet armyworm Spodoptera exigua Leaf damage caused by beet armyworm feeding; Spodoptera exigua
1593089 pine tip root weevil Hylobius rhizophagus Branch flagging on a root tip weevil infested tree. 
1393005 Asian longhorned beetle Anoplophora glabripennis Ravenswood infestation - Chicago - July 1998
1593016 redheaded pine sawfly Neodiprion lecontei Feeding damage on a red pine sapling
1593053 white pine weevil Pissodes strobi Classic early attack symptoms in the terminal of an infested eastern white pine. 
1593083 native elm bark beetle Hylurgopinus rufipes
5471771 emerald ash borer Agrilus planipennis Heavily infested Ash tree with Emerald Ash Borer and woodpecker activity in evidence.  Some galleries exposed.
5471787 emerald ash borer Agrilus planipennis
5471784 emerald ash borer Agrilus planipennis
5471785 emerald ash borer Agrilus planipennis
5471779 emerald ash borer Agrilus planipennis
1593067 Saratoga spittlebug Aphrophora saratogensis Heavily damaged red pine growing in a dense stand of Sweetfern, the nymphal host of the Saratoga spittlebug
5474696 box tree moth Cydalima perspectalis
1593005 eastern spruce gall adelgid Adelges abietis Odler galls caused by eastern spruce gall adelgid
1593012 white pine weevil Pissodes strobi Terminal and laterals beging to wilt (die) due to an active infestation of white pine weevil.  
1593035 pine engraver Ips pini Pine engraver mortality showing up as a pocket of recently killed red pine trees. 
5475308 West Indian cane weevil Metamasius hemipterus Feeding damage caused by larvae of Metamasius hemipterus on spindle palm.
5475307 royal palm bug Xylastodoris luteolus Severe damage caused by royal palm bug.
5475197 banana moth Opogona sacchari Damage caused by banana moth larvae on adult coconut palm.
5475196 banana moth Opogona sacchari Damage caused by banana moth larvae in Wodyetia bifurcata.
5449496 Gelechiid moth Coleotechnites variiella Damage to lower canopy (late July)
5468221 eastern ash bark beetle Hylesinus aculeatus exit holes
5468222 eastern ash bark beetle Hylesinus aculeatus exit holes
5468223 eastern ash bark beetle Hylesinus aculeatus exit holes
1596192 stem-boring weevil Mecinus janthinus
1596193 stem-boring weevil Mecinus janthinus
1596194 stem-boring weevil Mecinus janthinus
1596186 stem-boring weevil Mecinus janthinus
1596187 stem-boring weevil Mecinus janthinus
1595820 stem-boring weevil Mecinus janthinus
1595816 stem-boring weevil Mecinus janthinus
1595817 stem-boring weevil Mecinus janthinus
1595818 stem-boring weevil Mecinus janthinus
5401562 eucalyptus psyllid Blastopsylla occidentalis
5401563 eucalyptus psyllid Blastopsylla occidentalis
5471169 cone worms Dioryctria spp.
5468217 ash borer Podosesia syringae
5468218 ash borer Podosesia syringae
5461637 European spruce bark beetle Ips typographus
5461634 European spruce bark beetle Ips typographus
5461633 horse chestnut leafminer Cameraria ohridella
5461557 eucalyptus weevil Gonipterus scutellatus
5465932 bean leaf beetle Cerotoma trifurcata
5465933 bean leaf beetle Cerotoma trifurcata
5465929 bean leaf beetle Cerotoma trifurcata
5445384 bagworms Apical dieback from bagworm feeding on arborvitae.
5445385 bagworms
5454643 bark beetles
5445386 bagworms
5461632 horse chestnut leafminer Cameraria ohridella
5454143 pine false webworm Acantholyda erythrocephala
5454280 mimosa webworm Homadaula anisocentra
5446333 hemlock woolly adelgid Adelges tsugae
5458405 Monterey pine aphid Essigella californica Damage from Monterey Pine Aphid heaviest in lower canopy
5458415 Monterey pine aphid Essigella californica Damage lower canopy
2200018 papaya mealybug Paracoccus marginatus
0177055 tuber flea beetle Epitrix tuberis Potato tuber with darkened superficial channels due to larvae
1249004 emerald ash borer Agrilus planipennis bark crack on 10-year old sapling
1247296 whitefringed beetle Naupactus peregrinus To pine root
1399091 mountain pine beetle Dendroctonus ponderosae
1238074 lesser peachtree borer Synanthedon pictipes on flowering Japanese cherry
2089051 redheaded pine sawfly Neodiprion lecontei Pine needle showing typical sign of oviposition
2733005 southern pine beetle Dendroctonus frontalis boring dust
5445619 elm spanworm Ennomos subsignaria defoliation
1468085 fir engraver Scolytus ventralis
5453986 gouty pitch midge Cecidomyia piniinopis swelling and resin bleeding indicates impending emergence of larva from the shoot - late February 2011
5453988 gouty pitch midge Cecidomyia piniinopis swelling and resin bleeding indicates impending emergence of larva from the shoot; larva is barely visible as the bark spits open - late February 2011
5453990 gouty pitch midge Cecidomyia piniinopis swelling and resin bleeding indicates impending emergence of larva from the shoot; larva is barely visible as the bark spits open - late February 2011
0796008 pine thrips Gnophothrips spp. female cone showing partial damage
5445592 lodgepole cone moth Eucosma rescissoriana Entry hole in white pine cone and slight exterior frass caused by cone moth
1435077 Nantucket pine tip moth Rhyacionia frustrana
1599368 lesser cornstalk borer Elasmopalpus lignosellus Showing feeding tubes
1580572 greenstriped mapleworm Dryocampa rubicunda
1580577 greenstriped mapleworm Dryocampa rubicunda
5445833 Nantucket pine tip moth Rhyacionia frustrana Stunted and deformed tree from heavy tip moth infestation
5445825 western pineshoot borer Eucosma sonomana Terminal shoot stunted by shoot borer feeding
5445826 western pineshoot borer Eucosma sonomana Terminal shoot split open to expose shoot borer larval feeding damage in the pith
1241004 emerald ash borer Agrilus planipennis suckering
0177073 Douglas-fir tussock moth Orgyia pseudotsugata Single tree defoliation.
1238071 acorn and nut weevils Curculio spp. acorn weevil and gall wasp on red oak. Greenville, Sc.
2089086 black turpentine beetle Dendroctonus terebrans pitch tubes at base of tree; sign of attack
5445032 onion thrips Thrips tabaci Severe onion plant injury from onion thrips
1879056 granulate ambrosia beetle Xylosandrus crassiusculus Exit hole and frass plug. Note frass plug broken and not in characteristic "toothpick"-like appearance
1396009 bronze birch borer Agrilus anxius dead branches
5445261 mealy plum aphid Hyalopterus pruni
5445239 dogwood sawfly Macremphytus tarsatus Defoliation due to dogwood sawfly
5445231 deer flies Chrysops spp. Reaction to bite of Chrysops
5445127 locust borer Megacyllene robiniae Trunk of heavily damaged tree that was killed by locust borer
5445128 locust borer Megacyllene robiniae Trunk of heavily damaged tree that was killed by locust borer
5445126 locust borer Megacyllene robiniae Tree killed by locust borer
5445210 cooley spruce gall adelgid Adelges cooleyi heavy infestation of Engelmann spruce
5445138 white pine weevil Pissodes strobi terminal of blue spruce killed by white pine
5445137 white pine weevil Pissodes strobi Terminal of blue spruce killed by white pine weevil
5444920 large white butterfly Pieris brassicae
5443290 elm leaf beetle Xanthogaleruca luteola English elm with skeletonizing damage produced by elm leaf beetle larvae
5443183 spruce beetle Dendroctonus rufipennis Tree mortality along White River in Rio Blanco County. This area was near the epicenter of the massive outbreak of this insect in the late 1940s. Photograph taken July 27, 2011
1259096 nun moth Lymantria monacha
2721076 southern pine beetle Dendroctonus frontalis Upland Island Wilderness Angelina, Texas, Three years after southern pine beetle outbreak
3056004 Columbian timber beetle Corthylus columbianus flagworm in white oak lumber
3056003 Columbian timber beetle Corthylus columbianus Flagworm in boxelder lumber. Note red/pink stains.
3056010 oak timberworm Arrenodes minutus holes in oak lumber
1326063 raspberry horntail Hartigia cressonii Larval tunneling in raspberry
1223147 Asian chestnut gall wasp Dryocosmus kuriphilus
0002046 grass fly Lipara similis Note dried top leaf and lack of flower.
1540967 sixspined ips Ips calligraphus
1541016 black turpentine beetle Dendroctonus terebrans
1541584 pales weevil Hylobius pales
1393002 Asian longhorned beetle Anoplophora glabripennis Exit hole - 3/8"
1141005 small poplar borer Saperda populnea damaged stem
5432751 carpenterworm Prionoxystus robiniae
1435131 tea scale Fiorinia theae Damage to Camellia. Scales attack on the underside, but infested plants can be told by the yellow blotches on the upper leaf surface and premature dropping of leaves. Scale infests Chinese holly, dogwood, ferns, figs, Satsuma orange, tea plant, and yaupon.
2515029 European shot-hole borer Xyleborus dispar exsudation of sap due to beetle attacks
1416042 stem-boring weevil Mecinus janthinus
5443539 Japanese beetle Popillia japonica Skeletonizing on Buckeye, August 2011
5443544 Japanese beetle Popillia japonica Defoliation on a buckeye. August 2011
5443545 Japanese beetle Popillia japonica Defoliation on a buckeye. August 2011
5443547 Japanese beetle Popillia japonica Defoliation on European linden. August 2011
1243094 honey bee Apis mellifera Comb produced behind wall.
1246043 leaf blotch miners Phyllonorycter spp. Tentiform mines, view from underside of leaf
3066059 hawthorn agrilus Agrilus crataegi in Creatagus
1626089 eastern spruce gall adelgid Adelges abietis Eastern spruce galls occur at the base of new shoots. They are found primarily on Norway spruce, but also on white, red, and Colorado blue spruce.
1468311 sugar pine tortrix Choristoneura lambertiana
1243135 potato/tomato psyllid Paratrioza cockerelli Symptoms of 'psyllid yellows' on untreated row (right) adjacent to insecticide treated potatoes
3066063 bronze birch borer Agrilus anxius bark opened to expose larval galleries
1879048 Ips engraver beetles Ips spp. Nuptial chamber and galleries
1929027 southern pine beetle Dendroctonus frontalis pitch tubes
0002067 rose stem girdler Agrilus cuprescens close up of girdle and broken cane
0002066 rose stem girdler Agrilus cuprescens a "flag" caused by the break of a cane at the girdle (August)
4212001 forest tent caterpillar Malacosoma disstria defoliation
3057027 carpenterworm Prionoxystus robiniae lateral bark scar
3056028 oak stem borer Aneflomorpha subpubescens in red oak sprout (fig. 165 C in USDA Forest Service Ag. Handbook AH-706, 1995)
2734095 redheaded pine sawfly Neodiprion lecontei typical "straw"-like feeding damage
2733014 white pine weevil Pissodes strobi terminal weevil feeding
2721058 redheaded pine sawfly Neodiprion lecontei characteristic "straw" damage resulting from larval feeding
2721048 pine chafer Anomala oblivia note characteristic clipping and browning of needles
2721032 Ips engraver beetles Ips spp. Pitch tube
2721042 redheaded pine sawfly Neodiprion lecontei group of early instars in characteristic feeding position
2666051 pecan nut casebearer Acrobasis nuxvorella damaged nut cluster
2254026 red turpentine beetle Dendroctonus valens pitch tubes
2254014 western pine beetle Dendroctonus brevicomis bark sloughing off of trees
2254015 western pine beetle Dendroctonus brevicomis pitch tubes
2253078 western pine beetle Dendroctonus brevicomis old damage causing bark to fall off tree
2253036 spruce budworm Choristoneura fumiferana in cone note frass mass
2253010 pine resin midges Cecidomyia spp. flagging terminals
2252079 mountain pine beetle Dendroctonus ponderosae boring dust on lodge pole pine
2252059 Gelechiid moths
0796033 southern pine coneworm Dioryctria amatella a seed orchard pest
1137039 conifer sawflies Neodiprion spp. a species complex including Neodiprion abietis (Harris) and Neodiprion near delioni Ross. Defoliation occurs on smaller trees and the lower branches of larger trees.
0907018 white pine weevil Pissodes strobi dead terminal caused by damage
0805050 pineapple gall midges Rabdophaga spp. gall on willow
0805031 birch leafroller Epinotia solandriana rolled leaf
0796023 webbing coneworm Dioryctria disclusa early instar attacks in pollen catkins, note the webbing, a seed orchard pest
0796024 webbing coneworm Dioryctria disclusa loblolly pine flowers damaged or killed, a seed orchard pest
0745096 southern pine beetle Dendroctonus frontalis pitch tubes on slash pine
0745097 southern pine beetle Dendroctonus frontalis pitch tubes
0745081 southern pine beetle Dendroctonus frontalis pitch flow
0745079 southern pine beetle Dendroctonus frontalis pitch tubes & pitchout on loblolly pine - close up
0745080 southern pine beetle Dendroctonus frontalis in slash stand
0745003 black turpentine beetle Dendroctonus terebrans pitch tubes
0718020 oak leafminers Cameraria spp.
0717040 Zimmerman pine moth Dioryctria zimmermani
0717032 pales weevil Hylobius pales Lone branch killed. This type of damage is called flagging.
0717033 pales weevil Hylobius pales flagging
0717029 pales weevil Hylobius pales
0717010 eastern spruce gall adelgid Adelges abietis A common pest on both Christmas trees and yard plantings. Note the short needles on the gall.
0717023 Nantucket pine tip moth Rhyacionia frustrana Note the rounded, stunted growth.
0717008 cooley spruce gall adelgid Adelges cooleyi Heavily galled trees become disfigured and have reduced value as Christmas trees.
0717012 bagworm Thyridopteryx ephemeraeformis Note the defoliation on top of this fir tree.
0590079 red oak borer Enaphalodes rufulus
0590075 pine webworm Pococera robustella
0590070 pitch-eating weevil Pachylobius picivorus
0488090 webbing coneworm Dioryctria disclusa
0355010 petiolegall psyllid Pachypsylla venusta on oak
0012027 steelblue jewel beetle Phaenops cyanea damaged pine stand
0012026 steelblue jewel beetle Phaenops cyanea first instar of the attack on pine shown by crown discoloration (on the left)
1326010 oak rough bulletgall wasp Disholcaspis quercusmamma Fully formed galls on twig
1259169 six-toothed spruce bark beetle Pityogenes chalcographus
1259168 six-toothed spruce bark beetle Pityogenes chalcographus
1259166 six-toothed spruce bark beetle Pityogenes chalcographus
1259075 European spruce bark beetle Ips typographus
1259076 European spruce bark beetle Ips typographus
1259074 European spruce bark beetle Ips typographus
1258316 black spruce beetle Tetropium castaneum Larval entrance holes
1258216 great spruce bark beetle Dendroctonus micans Under bark and root collar
1258175 larch longicorn beetle Tetropium gabrieli To larch
1258165 large larch bark beetle Ips cembrae Adult exit holes in bark
1258149 violet tanbark beetle Callidium violaceum This insect often attacks confiers that have been weakened by fire
1258147 violet tanbark beetle Callidium violaceum To spruce
1406082 poplar gall borer Saperda inornata gall breakage
1398168 mountain pine beetle Dendroctonus ponderosae Pitch tubes. Medicine Bow Mountains, southeast Wyoming
3066066 hickory agrilus Agrilus otiosus bark removed to expose spiral swellings over gallery beneath
1929033 bark beetles bark beetle emergence hole and sawyer beetle oviposition niche
0907009 whitespotted sawyer Monochamus scutellatus wound caused by adult feeding
1231247 birch bell moth Epinotia tetraquetrana
1396014 spruce budworm Choristoneura fumiferana dead trees
1396032 oak lace bug Corythucha arcuata
2133095 steelblue jewel beetle Phaenops cyanea exit holes of imagines; scale: small quadrate: 1 x 1 mm
1231192 eastern juniper bark beetle Phloeosinus bicolor
1231186 large elm beetle Scolytus scolytus
1231187 European oak bark beetle Scolytus intricatus
1231203 larger pine shoot beetle Tomicus piniperda
1300028 larger pine shoot beetle Tomicus piniperda exit holes of newly emerging adult pine shoot beetle
3066065 hickory agrilus Agrilus otiosus sinuate gallery under bark
3066041 oak phylloxerids Phylloxera spp. new shoots in Nuttall oak seedlings killed
4544078 Pine resin-gall moth Retinia resinella
1306017 spruce beetle Dendroctonus rufipennis spot infestation in southern British Columbia
1306006 mountain pine beetle Dendroctonus ponderosae mass attack with pheromone bait
1300017 larger pine shoot beetle Tomicus piniperda Flagging and dying pine terminal infested by adult pine shoot beetle
1231200 ash bark beetle Hylesinus varius
1231205 larger pine shoot beetle Tomicus piniperda
1468249 larch casebearer Coleophora laricella
1468123 western pineshoot borer Eucosma sonomana
1468031 western false hemlock looper Nepytia freemani 1965
5439536 citrus mealybug Planococcus citri
0805002 spruce beetle Dendroctonus rufipennis infested white spruce attacked by beetles from infested log stack
1860005 variegated cutworm Peridroma saucia bud destroyed by larva
1748065 southern pine beetle Dendroctonus frontalis pitch tubes-closeup
0284077 poplar twig borer Oberea delongi larvae in shoots
4212069 sugar maple borer Glycobius speciosus
4212047 white pine weevil Pissodes strobi multi stem; old damage
1470018 poplar gall borer Saperda inornata
1470031 European pine shoot moth Rhyacionia buoliana silhouette
0805080 spruce beetle Dendroctonus rufipennis
0795080 woolly pine scale Pseudophilippia quaintancii Heavy infestion in South Carolina Forestry Commission seed orchard.
1543102 southern pine beetle Dendroctonus frontalis
2101068 engraver beetle Ips acuminatus blue stain fungi (Ophiostoma spp.) in the sapwood
2133065 long-horned beetle Arhopalus rusticus tree foot of Pinus spec with hard light cemented excremts in the larvae traces and exit hole of imago, also holes of larve in the timber are filled with this "cement excrements", scale: small quadrate 1 x 1 mm
2733050 twig girdler Oncideres cingulata
3066040 oak phylloxerids Phylloxera spp. new shoots on Nuttall oak seedlings killed
3067018 Columbian timber beetle Corthylus columbianus entrance hole and oozing sap
4178068 pine colaspis Colaspis pini note coloration change due to adult feeding
4449017 thrips Thrips pini
1324068 formosan subterranean termite Coptotermes formosanus Some remnants of a nest are visible in this cavity, which was hollowed out by Formosan subterranean termites while the tree was still alive. Microbiologist Alan Lax checks the extent of the damage.
1678058 white pine weevil Pissodes strobi
1370010 adelgid Adelges viridis Young tree with visible damage, note the yellow/brown color in the crown. Matrafured/ Hungary
3067056 Pacific flatheaded borer Chrysobothris mali
1441006 mountain pine beetle Dendroctonus ponderosae pitch tubes
1204100 periodical cicada Magicicada spp. typical damage to young trees caused by ovipositing females, broken limb
1327115 leafminer fly Liriomyza spp. Leafminer damage on cantaloupe leaf
3057021 poplar leafcurl midge Prodiplosis morrisi earlier damage & recovery
0012014 leaf wood beetle Cryptocephalus pini fresh-damage on pine needles
4212053 eastern spruce gall adelgid Adelges abietis old galls
1541699 tip moth
1435207 Oriental fruit moth Grapholita molesta to peach stem
1199034 white pine weevil Pissodes strobi Emergence hole
5436223 musk thistle head weevil Rhinocyllus conicus flower head, note chewing damage by seed head weevil Rhinocyllus conicus.
1269005 small fir bark beetle Cryphalus piceae
5288050 Ips engraver beetles Ips spp. Ips avul & calli in Slash pine
5118017 mealybug Puto albicans Collector: McKenzie Date of photograph or collection: 06/30/1966
1541709 tip moth
5439083 eastern subterranean termite Reticulitermes flavipes
1269032 steelblue jewel beetle Phaenops cyanea Tree mortality. Switzerland
3047057 Japanese cedar longhorn beetle Callidiellum rufipenne typical larval damage - closeup
1929055 Canada thistle stem gall fly Urophora cardui galls
1301045 emerald ash borer Agrilus planipennis
1204004 walnut caterpillar Datana integerrima
2134011 Pissodes weevil Pissodes pini trunk with Pissodes cocoons, opened by woodpeckers
2134012 Pissodes weevil Pissodes pini trunk with Pissodes cocoons, opened by woodpeckers; scale: small quadrats 1 x 1 mm
2168018 gypsy moth Lymantria dispar June 2006
3056077 dogwood twig borer Oberea tripunctata infested branch flagging
3057008 cottonwood borer Plectrodera scalator fibrous frass at base of stem
3066013 maple callus borer Synanthedon acerni
3067082 Columbian timber beetle Corthylus columbianus
3067095 oak branch borer Goes debilis on sapling (note entrance hole and frass)
3225010 southern pine beetle Dendroctonus frontalis pitch tube, close-up
3225001 small southern pine engraver Ips avulsus Top kill
4212040 white pine weevil Pissodes strobi typical shepherd's crook damage to terminal
4212044 Saratoga spittlebug Aphrophora saratogensis deformed tree, old injury
4212046 eastern pine shoot borer Eucosma gloriola deformed stem
4212032 redheaded pine sawfly Neodiprion lecontei feeding damage
4212039 white pine weevil Pissodes strobi terminal demonstrating characteristic "shepherd's crook" on jack pine
4212011 birch leafminer Fenusa pusilla yellow tree
4212014 birch leafminer Fenusa pusilla mines
4178063 loblolly pine sawfly Neodiprion taedae linearis damage to needles
1398234 poplar borer Saperda calcarata Young aspen stem with a sap bleeding wound caused by larval tunneling activity. Chippewa Co, WI 2005
1398057 leafhopper Typhlocyba albicans Stippling damage on leaf in early summer. Hiawatha National Forest, MI
1312006 red turpentine beetle Dendroctonus valens Pitch tubes on fire-scorched ponderosa pine.
5439064 tuliptree scale Toumeyella liriodendri
1112002 white pine weevil Pissodes strobi Dead terminal. McGregor Model Forest, British Columbia
0796032 cone worms Dioryctria spp. stem attack on loblolly pine
1460033 emerald ash borer Agrilus planipennis D-shaped emergence hole
1113021 fir bark beetle Pityophthorus pityographus Kakanj, Central Bosnia, July 2004.
3057090 gallmaking maple borer Xylotrechus aceris adult exit hole over attack site
3066067 hickory agrilus Agrilus otiosus zig-zag grooves in outer bark
3057029 carpenterworm Prionoxystus robiniae lateral feeding scars in trunk
4212078 bark beetles
1258014 nun moth Lymantria monacha
2912086 eastern tent caterpillar Malacosoma americanum multiple tents
0014171 baldcypress leafroller Archips goyerana
1419468 leafcurl ash aphid Meliarhizophagus fraxinifolii to white ash
1419053 leaf-rolling weevil Homoeolabus analis adult feeding damage to sawtooth oak terminal
1416040 stem-boring weevil Mecinus janthinus
3067053 red oak borer Enaphalodes rufulus overgrown bark scar
3067035 ash borer Podosesia syringae note clump of frass on terminal
1262008 Asian longhorned beetle Anoplophora glabripennis infested poplar in Ningxia, China
1260047 nun moth Lymantria monacha Heavy defoliation. Sachsen, Germany
4544059 spruce aphid Elatobium abietinum
1399074 white pine weevil Pissodes strobi
1398091 emerald ash borer Agrilus planipennis
1398093 emerald ash borer Agrilus planipennis Boulevard tree with heavy woodpecker activity. Ann Arbor, MI, 2004.
1398041 sugar maple borer Glycobius speciosus External damage on live standing tree
1398016 balsam twig aphid Mindarus abietinus Twisted needles on new growth, early spring. Photo taken in Anoka County, MN
0007080 red oak borer Enaphalodes rufulus Larval tunnels of the red oak borer rendered oak lumber basically unusable.
0012022 European silver fir weevil Pissodes piceae on silver fir stem
1400137 periodical cicada Magicicada septendecim Branch flagging on bur oak due to oviposition damage by the 1997 brood emergence of the periodical (17 year) cicada in central Iowa.
1246047 birch leafminer Fenusa pusilla
1324067 formosan subterranean termite Coptotermes formosanus Formosan subterranean termites can turn solid beams into shredded-wheat-like wood. Entomoligist Ed Freytag (left) and microbiologist Alan Lax inspect damage to the floor of a building in the French Quarter.
1190011 great spruce bark beetle Dendroctonus micans lump of resin on root collar
2168009 gypsy moth Lymantria dispar
3067088 living-hickory borer Goes pulcher entrance hole in sapling
2133061 long-horned beetle Arhopalus rusticus tree foot of Pinus spec with hard light cemented excremts in the larvae traces
2133063 long-horned beetle Arhopalus rusticus species specific exit holes of imagines (oval with parallel sides and vertical orientation)
2133062 long-horned beetle Arhopalus rusticus species specific exit holes of imagines (oval with parallel sides and vertical orientation)
1398031 locust leafminer Odontota dorsalis Leaf mines
1398042 cherry scallop shell moth Rheumaptera prunivorata tied foliage
1398230 white pine weevil Pissodes strobi Board showing internal damage due to an old white pine weevil attack, large knots and twisted wood grain.
1398191 spruce needleminer Taniva albolineana
1327152 carrot weevil Listronotus oregonensis Damage is usually limited to the crown and top 1/2 inch of the root, but can extend down the carrot several inches (as seen on the left).
1204107 periodical cicada Magicicada spp. typical damage caused by ovipositing females
0284048 small southern pine engraver Ips avulsus single tree showing top kill and green lower branches, typical of infestation
4449020 thrips Thrips pini
3067047 white oak borer Goes tigrinus frass extruding from entrance
1207031 white pine weevil Pissodes strobi View of seedling showing effect of repeated damage
2105026 six-toothed spruce bark beetle Pityogenes chalcographus Resin flow, nursery Rimš, Slovenia, June 2002
1207043 mountain pine beetle Dendroctonus ponderosae Close-up of pine bole showing copious attack of beetle, Kelly Prairie, Heppner Ranger District, March 1977
5434448 leaf blotch miner moth Phyllocnistis labyrinthella
1207035 white pine weevil Pissodes strobi Close-up of branch showing holes in bark from weevil feeding
4798003 small southern pine engraver Ips avulsus
1468321 white pine weevil Pissodes strobi
1468292 cone borers Eucosma spp. stunted terminal
1468288 white fir needleminer Epinotia meritana June 10, 1970
0021020 gorse soft shoot moth Agonopterix ulicitella
2510027 sweetpotato whitefly Bemisia tabaci Transmits a geminivirus
2515055 steelblue jewel beetle Phaenops cyanea dead infested tree
1329016 oak phylloxera Phylloxera quercus Roselle Grosseto, Italy June 2000. The aphids live on the lower side of the leaf.
1207054 mountain pine beetle Dendroctonus ponderosae Granite Creek area showing pine killed by beetle, Baker Ranger District
1468244 tussock moths Halysidota spp.
4544043 larch bud moth Zeiraphera griseana
1199001 pine root collar weevil Hylobius radicis To base.
1291013 black-margined loosestrife beetle Galerucella calmariensis Larval "window-pane" feeding damage
4060063 larch sawfly Pristiphora erichsonii with 5th instar larvae, Cass Lake, Minnesota July '53
2101053 conifer sawfly Diprion pini defoliated tree
2168075 common cockchafer Melolontha melolontha May 2005
1258308 black spruce beetle Tetropium castaneum Attacked spruce tree
1398233 white pine weevil Pissodes strobi twisted, old white pine
2133079 six-spined engraver beetle Ips sexdentatus trunk with galleries, central way of gallery is slightly engraved in sapwood; scale: large quadrate 1 x 1 cm, small one 1 x 1 mm
1398167 pine engraver Ips pini Pocket of recently killed older red pine. Superior National Forest, MN
2134004 steelblue jewel beetle Phaenops cyanea tree attacked by Phanops, bark is removed by woodpeckers searching for Phanops larvae, the fine zigzag lines are traces of young Phanops larvae; Phanops larvae don't touch the sapwood, see 2134003
2134009 Pissodes weevil Pissodes pini trunk with Pissodes cocoons, opened by woodpeckers; scale: large quadrate 1 x 1 cm
2134002 steelblue jewel beetle Phaenops cyanea tree attacked by Phanops, bark is removed by woodpeckers searching for Phanops larvae, Pinus stand was defoliated by Nun Moth one year before
1398192 spruce needleminer Taniva albolineana Hollowed-out dead needles webbed onto a white spruce branch. St. Paul, MN
2134010 Pissodes weevil Pissodes pini trunk with Pissodes cocoons, opened by woodpeckers; scale: large quadrate 1 x 1 cm
2133085 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, detail of tree A
2134005 steelblue jewel beetle Phaenops cyanea tree with signs of woodpeckers search for hibernating Phanops larvae inside the bark during winter
1398139 white pine cone borer Eucosma tocullionana Frass extruding from infested cone. Early August at Oconto River seed orchard, Nicolet National Forest in northern Wisconsin
1398194 spruce budworm Choristoneura fumiferana Dead and declining white spruce in northern MN following a spruce budworm outbreak
1398226 white pine weevil Pissodes strobi
1398265 birch leafminer Fenusa pusilla Brown blistered leaves on a paper birch, late spring in northern Minnesota
0014302 black twig borer Xylosandrus compactus attack causing flagging (this is the first recorded attack by this insect on leyland cypress in 1995) and it has since been found on most christmas tree farms
1416052 Toadflax Brocade Calophasia lunula Defoliation
1468129 pinyon spindlegall midge Pinyonia edulicola
1269011 large brown trunk beetle Hylobius abietis Switzerland
1269029 nun moth Lymantria monacha Infested stand. Switzerland
3056052 willow shoot sawfly Janus abbreviatus causing shoot dieback
3056096 cottonwood clearwing borer Paranthrene dollii stem damage with frass
4212074 bark beetles boring dust
1297006 Poplar tip moth Clostera anastomosis Completely defoliated. NE Italy
1441072 cone worms Dioryctria spp. Nebraska National Forest
0454063 Grapevine phylloxera, vine louse Phylloxera vitifoliae Severe symptoms of the gallicolae form of Viteus vitifoliae on grapevine, showing extensive leaf galls.
3066033 cambium miners Phytobia spp. in root [note mine pattern]
1860013 yellow poplar weevil Odontopus calceatus Feeding sign/damage of new-brood on yellow-poplar leaves
5436321 European pine shoot moth Rhyacionia buoliana
5436327 European pine shoot moth Rhyacionia buoliana
5436329 European pine shoot moth Rhyacionia buoliana
0024040 musk thistle flower fly Cheilosia corydon feeding damage caused by larvae
0021090 defoliating hemlock moth Agonopterix alstroemeriana caused by larvae
1396127 leafhopper Typhlocyba albicans Hiawatha National Forest
1258060 great spruce bark beetle Dendroctonus micans Pitch tubes at root collar
4212063 twolined chestnut borer Agrilus bilineatus infested during current growning season
1306012 mountain pine beetle Dendroctonus ponderosae pitch tube
1468339 western pine beetle Dendroctonus brevicomis 1967
2134003 steelblue jewel beetle Phaenops cyanea tree with partly removed bark, pale shining, is attacked by Phanops, bark is removed by woodpeckers searching for Phanops larvae, Pinus stand was defoliated by Nun Moth one year bevor; see 2134004 for detail image
1398258 leafminer flies
1470069 European pine shoot moth Rhyacionia buoliana
1204096 sycamore leaf beetle Neochlamisus platani leaves with typical damage caused by larvae
3047062 Japanese cedar longhorn beetle Callidiellum rufipenne exit hole
3056085 poplar branch borer Oberea schaumii stem damage
1260046 nun moth Lymantria monacha Heavy defoliation. Sachsen, Germany
1249005 emerald ash borer Agrilus planipennis stem discoloration and bark crack on 10-year old sapling
3057094 pecan carpenterworm Cossula magnifica entrance hole, frass pellets and stained bark on trunk
1393011 Asian longhorned beetle Anoplophora glabripennis Oviposition niche. Ravenswood infestation - Chicago - August 1998
1329029 spruce needle tortricid Epinotia tedella Cansiglio, Italy, June 1995
1329058 European spruce bark beetle Ips typographus Cansiglio, Italy 20 March 1990
1441011 mountain pine beetle Dendroctonus ponderosae
0025002 gall midge Dasineura capsulae galls
1858044 tarnished plant bug Lygus lineolaris "crazy cotton", or abnormal growth due to feeding in terminal
1468285 white fir needleminer Epinotia meritana
1468240 tussock moths Halysidota spp. 1978
1121011 European spruce bark beetle Ips typographus attacked trees on windfall gap border
4212052 eastern spruce gall adelgid Adelges abietis
3057005 cottonwood borer Plectrodera scalator fibrous frass at base of stem
3056040 lesser peachtree borer Synanthedon pictipes attack at old pruning scar in black cherry
3056047 boxelder twig borer Proteoteras willingana twig swelling with frass at entrance hole
3057050 southeastern gray twig pruner Anelaphus villosus terminal girldled on young oak
1326058 blue spruce engraver Ips hunteri Crown dieback symptom if infestation
0024026 Canada thistle stem gall fly Urophora cardui gall in stem
5429839 royal palm bug Xylastodoris luteolus
1241745 balsam woolly adelgid Adelges piceae Crown symptoms of subalpine fir being killed by balsam woolly adelgid.
5436257 Canada thistle bud weevil Larinus planus damage by introduced weevil Larinus planus
5436272 stem-boring weevil Mecinus janthinus damage to plant by adult feeding, note tip kill
1306016 red turpentine beetle Dendroctonus valens on fire-scarred tree
1227059 leaf-footed bugs Leptoglossus spp.
3057003 poplar borer Saperda calcarata damage to stem by cluster of borers
1440111 tobacco budworm Heliothis virescens The tobacco budworm is one of the most destructive pests of the tobacco. Eggs, laid by the adult moth on the tobacco leaves, hatch and eventually develop into 1 1/2-inch long larvae when full grown. The larvae are light to dark green and have several longitudinal pale stripes. They may chew small holes in the leaves before they reach the buds. Larvae then damage the bud or growing tip of the plant. They may appear any time during the growing season. The leaves that expand from the buds are often ragged and distorted. Because of their protected location on the plant, budworms are difficult to control. The corn earworm, Heliothis zea (Boddie), also attacks burley and is closely related to the budworm in appearance and feeding habits.
1258119 small fir bark beetle Cryphalus piceae To top of old fir tree
4212029 spruce budworm Choristoneura fumiferana defoliation: silver colored tops
1212015 Douglas-fir tussock moth Orgyia pseudotsugata Indian Creek area, Heppner RD, Umatilla NF, 2001
1457042 webbing coneworm Dioryctria disclusa Infested red pine cone. Granular frass visible at the base of the cone. A large entry hole can be found near the cone base.
1627030 pine webworm Pococera robustella
5436188 thistle tortoise beetle Cassida rubiginosa feeding damage from Canada thistle tortoise beetle
5436219 thistle crown weevil Trichosirocalus horridus attack site of crown weevil, bud is destroyed (dead tissue in center). Plants can produce secondary stems afterwards, but flowering is delayed.
5436208 Canada thistle stem gall fly Urophora cardui gall
0026032 Canada thistle bud weevil Larinus planus
1269004 small fir bark beetle Cryphalus piceae Infested Stand. Switzerland
1258261 Norway spruce weevil Pissodes harcyniae Pitch flow on spruce bark resulting from adult feeding
2101051 Maritime pine stem borer Dioryctria sylvestrella resin flux on the trunk
1402115 Japanese beetle Popillia japonica They migrate into tobacco fields and often feed in groups on the upper leaves of scattered plants. Feeding holes are of moderate size and irregular or ragged, giving leaves a lacy appearance. Larvae are the grubs which feed in the soil on roots other than tobacco. They are about one inch long at maturity, white or grayish white with a reddish-brown head and are somewhat C-shaped.
5436162 bull thistle gall fly Urophora stylata seed head attacked by seed head gall fly, note swollen head shape.
2733041 oak skeletonizer Bucculatrix ainsliella
1468312 sugar pine tortrix Choristoneura lambertiana 1967
3056044 maple twig borer Proteoteras aesculana
4212055 Zimmerman pine moth Dioryctria zimmermani and pitch masses
4212013 aspen blotchminer Phyllonorycter apparella
2515057 poplar borer Saperda carcharias symptom outside the trunk
4212064 twolined chestnut borer Agrilus bilineatus dead top from current infestation
2104018 horse chestnut leafminer Cameraria ohridella Ljubljana, Slovenia, June 2000
1123071 Zimmerman pine moth Dioryctria zimmermani Pitch glob on trunk
1416034 stem-boring weevil Mecinus janthinus
5377970 small banded pine weevil Pissodes castaneus
2252060 Douglas-fir needle midge Contarinia pseudotsugae
1269033 six-toothed spruce bark beetle Pityogenes chalcographus Switzerland
1441029 western balsam bark beetle Dryocoetes confusus in August 1977
1291014 black-margined loosestrife beetle Galerucella calmariensis Larvae and "window-pane" feeding damage
5435858 black-margined loosestrife beetle Galerucella calmariensis extreme defoliation by Galerucella calmariensis, tall plants from previous year, shorter brown plants damaged by first generation
1439010 emerald ash borer Agrilus planipennis split bark symptoms
3067006 tupelo borer Aegomorphus morrisii feeding damage (bark scar)
5435828 defoliating hemlock moth Agonopterix alstroemeriana heavy defoliation caused by larval poison hemlock leaf tier
0806073 western spruce budworm Choristoneura freemani two trees side by side; one dead, one alive; Both trees were exposed to intense feeding by western spruce budworm; one was completely defoliated, whereas the other sustained relatively minor damage, suggesting by their proximity that some sort of genetic resistance may be involved. Starkey Experimental Forest, Wallowa-Whitman National Forest, northeastern Oregon
5435894 skeletonweed gall midge Cystiphora schmidti larval galls in leaf and stems
5435876 root-boring weevil Hylobius transversovittatus adult feeding can damage young tender stems, sometimes causing them to wilt.
5435755 lesser knapweed flower weevil Larinus minutus plant heavily attacked by adult weevils
5435769 leafy spurge stem boring beetle Oberea erythrocephala damage to plant by adult beetle
5435832 defoliating hemlock moth Agonopterix alstroemeriana early damage stage by poison hemlock leaf tier, not rolled leaves.
5435782 Mediterranean sage root crown weevil Phrydiuchus tau heavy leaf damage by adult weevil feeding
5435784 Mediterranean sage root crown weevil Phrydiuchus tau plant heavily damaged by adult weevil feeding, which does not seem to affect bolting and seed production. Major impact is caused by late fall feeding and mortality to rosettes.
3057082 redheaded ash borer Neoclytus acuminatus adult exit holes
1468156 lodgepole sawfly Neodiprion burkei
3225004 Ips engraver beetles Ips spp. Red top tree in Lufkin, Texas
1258168 giant wood wasp Urocerus gigas gigas To spruce
1441062 sugar pine tortrix Choristoneura lambertiana to new shoots
1398037 twolined chestnut borer Agrilus bilineatus Dead and dying branches in the upper crown of a white oak, early evidence of two-lined chestnut borer attack. Photo taken in St. Paul, MN
3056051 willow shoot sawfly Janus abbreviatus round exit hole in willow shoot (Fig. 235G in USDA Forest Service Ag. Handbook AH-706, 1995)
1243036 potato flea beetle Epitrix cucumeris Leaf injury to seedling tomato
0284016 southern pine beetle Dendroctonus frontalis Trees infested in winter showing loss of bark due to woodpecker feeding, even on green-crowned trees.
4212059 poplar borer Saperda calcarata exit hole and frass
1224071 pecan nut casebearer Acrobasis nuxvorella
1433023 great spruce bark beetle Dendroctonus micans norway spruce looking ill after attack
1258061 great spruce bark beetle Dendroctonus micans Boring dust at entrance hole made by adult near root collar
1326057 blue spruce engraver Ips hunteri Early crown fading symptom of infestation
1327113 leafminer fly Liriomyza spp. Severe leafminer damage to cantaloupe field
2103015 leaf beetle Slovenj Gradec, Slovenia, July 2002.
4212012 aspen blotchminer Phyllonorycter apparella close-up view
1243004 vegetable leafminer Liriomyza sativae Damage to green onion.
1441025 spruce beetle Dendroctonus rufipennis
0805085 spruce gall aphids Adelges spp.
1398228 white pine weevil Pissodes strobi Evidence of an old weevil attack on a 20-25 yr old white pine in Wisconsin.
1326020 apple flea beetle Altica foliaceae
1433008 black spruce beetle Tetropium castaneum
1468399 mountain pine beetle Dendroctonus ponderosae
2168023 oak apple gall wasp Biorhiza pallida June 2006
1241521 pine tip moths Rhyacionia spp. Pine terminal killed by pine tip moth. Note the resin at the attack site near the bud and the exit hole produced by the larva as it left the terminal to pupate in the duff.
1199019 white pine cone borer Eucosma tocullionana
1246006 bronze birch borer Agrilus anxius
1243119 carrot rust fly Psila rosae Larvae within damaged root.
2101069 six-spined engraver beetle Ips sexdentatus exit holes in bark
1393019 Sirex woodwasp Sirex noctilio Round exit holes vary from 1/8 to 3/8" in diameter. South Australia - Sept 1987.
1243118 carrot weevil Listronotus oregonensis Larvae within damaged carrot.
1433020 small banded pine weevil Pissodes castaneus damaged stem of a young pine
2721056 redheaded pine sawfly Neodiprion lecontei typical "straw" feeding damage
2515058 small poplar borer Saperda populnea on twig
1191023 white satin moth Leucoma salicis
0590091 pine webworm Pococera robustella severe damage to pine seedling
0805087 white pine weevil Pissodes strobi
1137043 pandora moth Coloradia pandora Defoliated pine. Inyo National Forest, California
1269040 European fir engraver beetle Pityokteines vorontzowi
1269010 large brown trunk beetle Hylobius abietis Damage to roots. Switzerland
4178066 loblolly pine sawfly Neodiprion taedae linearis and larvae on foliage
1468338 western pine beetle Dendroctonus brevicomis May 1976
0805091 white pine weevil Pissodes strobi
2634020 white pine weevil Pissodes strobi shepherd's crook
2100076 silver fir bark beetle Pityokteines curvidens exit holes (under the bark)
2100092 European pine shoot moth Rhyacionia buoliana dead shoot mined by the caterpillar
2089070 southern pine beetle Dendroctonus frontalis exit holes of new brood adults
0805088 white pine weevil Pissodes strobi
1241601 defoliating weevil Magdalis gentilis Typical chewing caused by defoliating weevils leaves chunks of needles missing or broken off.
1191003 European spruce bark beetle Ips typographus debarked stems, near Praha, September 1998
1241513 white pine weevil Pissodes strobi
1241605 sugar pine tortrix Choristoneura lambertiana Chewed and webbed needles showing damage caused by larvae. Damage is similar to western spruce budworm.
1241519 western pineshoot borer Eucosma sonomana Shortened "shaving brush" appearance of infested shoot.
1402122 tobacco flea beetle Epitrix hirtipennis The lower leaves of larger plants can also be heavily damaged, especially near the base of the leaves.
2511054 root aphids Pemphigus spp.
0284047 small southern pine engraver Ips avulsus infestation in upper crown
1241604 pine needle sheathminer Zelleria haimbachi Defoliation showing thinned branch tips, and brown, kinked needles.
3067057 Pacific flatheaded borer Chrysobothris mali
2721021 pine chafer Anomala oblivia
0805090 white pine weevil Pissodes strobi
1929030 Ips engraver beetles Ips spp. Ips-killed red top loblolly pines
1393018 Sirex woodwasp Sirex noctilio Green needles reflex after attack in response to mucus injection. South Australia - Sept 1987.
1382030 larch casebearer Coleophora laricella Needle damage. Moscowskaya oblast, Russia
0805089 white pine weevil Pissodes strobi note the 'S' shaped stem damage from prior infestation
1398193 spruce gall midge Mayetiola piceae
3056076 raspberry cane borer Oberea perspicillata gum and frass (Fig. 148D in USDA Forest Service Ag. Handbook AH-706, 1995)
0001006 red imported fire ant Solenopsis invicta numerous stings
2515016 larch elm bark beetle Hylesinus crenatus dead tree
1199035 white pine weevil Pissodes strobi
3066042 leafcurl ash aphid Meliarhizophagus fraxinifolii heavily curled leaves caused by aphids with a cluster of green lacewing eggs
2100075 silver fir bark beetle Pityokteines curvidens exit holes
2168008 gypsy moth Lymantria dispar June 2006
2722009 fall armyworm Spodoptera frugiperda and several larvae feeding
1388024 balsam twig aphid Mindarus abietinus Twisted (distorted) new foliage
1441054 Douglas-fir tussock moth Orgyia pseudotsugata in 1983
1269043 small spruce bark beetle Polygraphus poligraphus
3040085 browntail moth Euproctis chrysorrhoea
5388350 termites Termite damage is shown.
5434440 adelgid Adelges viridis
1523034 redheaded ash borer Neoclytus acuminatus
2133074 nun moth Lymantria monacha Pinus stand 2 year after a strong foliation with death trees, some trees with a flaked defoliation are still in critical status
1398033 bronze birch borer Agrilus anxius
4212031 yellowheaded spruce sawfly Pikonema alaskensis defoliation
1207038 white pine weevil Pissodes strobi sapling or small pole showing terminal leader damaged by weevil feeding
1259175 six-toothed spruce bark beetle Pityogenes chalcographus
1190018 six-spined engraver beetle Ips sexdentatus
2100080 fir bark beetle Pityophthorus pityographus reddish tree
2101089 European spruce bark beetle Ips typographus debarking
1441044 western spruce budworm Choristoneura freemani
1398232 pine engraver Ips pini Pocket of dead older red pine killed by Ips pini,
1190031 European spruce bark beetle Ips typographus dead tree after beetle flight
5388352 Japanese beetle Popillia japonica Due to its rapid tree defoliation and broad range of tree species attacked, the Japanese beetle is one of the most devastatin pests to urban landscape plants in the eastern United States. 
5388353 Japanese beetle Popillia japonica Due to its rapid tree defoliation and broad range of tree species attacked, the Japanese beetle is one of the most devastatin pests to urban landscape plants in the eastern United States. 
5388274 rhinoceros beetle Xyloryctes jamaicensis Rhinoceros beetle has infested this palm tree.  These beetles usually cause only minor damage.    
0656001 pine processionary moth Thaumetopoea pityocampa Heavy attack of Thaumetopoea pityocampa on Pinus pinaster.
1269056 larger pine shoot beetle Tomicus piniperda
0014328 subterranean termite Reticulitermes spp. This house was less than five years old. Photo originally came from the Wood Products Insect Lab in Gulfport, Mississippi.
4544051 European spruce bark beetle Ips typographus
3225064 Texas leafcutting ant Atta texana defoliation of young tree
2515009 ambrosia beetle Gnathotrichus materiarius hole of penetrating gallery
1306020 spruce beetle Dendroctonus rufipennis spot infestation in southern British Columbia
5431716 white pine weevil Pissodes strobi
1241477 western balsam bark beetle Dryocoetes confusus Trees killed typically have bright red crowns for a year or two after death.
1398211 red pine cone beetle Conophthorus resinosae Pitch tube on twig
1327154 carrot weevil Listronotus oregonensis Damage at the crown of the carrot. Larva can be seen in the middle of the damage
4212058 poplar borer Saperda calcarata varnish and frass
2100098 birch bark beetle Scolytus ratzeburgi vertically aligned holes on the bark
2734082 pine chafer Anomala oblivia
1241474 fir engraver Scolytus ventralis Dead patches of cambium under roughened bark may indicate patch attack.
1241469 Douglas-fir beetle Dendroctonus pseudotsugae Red-orange boring dust is evidence of successful attack.
1361021 white pine weevil Pissodes strobi When terminal branch is killed, it is replaced by an adjacent branch, which results in a crooked or forked stem.
4544053 northern bark beetle Ips duplicatus
1194106 willow sawfly Nematus oligospilus Dead and damaged willows. Incursion along the Molonglo River, ACT, Australia, March 2005
0176022 eucalyptus longhorned borer Phoracantha semipunctata Lesions with dark exudation on a living eucalyptus tree.
2100056 European silver fir weevil Pissodes piceae brownish dead tree
2101064 large brown trunk beetle Hylobius abietis dead tree
2133088 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, hole crown of tree C
0806067 fir engraver Scolytus ventralis Red foliage stage. Malheur National Forest, northeastern Oregon
1258033 small spruce bark beetle Polygraphus poligraphus On spruce
2511023 cabbage looper Trichoplusia ni Damage to young seedlings
5432268 goldspotted oak borer Agrilus coxalis auroguttatus Staining on the bark surface of coast live oak, Quercus agricola, resulting from Agrilus auroguttatus larval feeding
5432270 goldspotted oak borer Agrilus coxalis auroguttatus Woodpecker foraging damage due to Agrilus auroguttatus infestation
0021096 golden loosestrife beetle Galerucella pusilla
1123069 white pine weevil Pissodes strobi Feeding punctures and sap droplets associated with spring feeding and egg deposition.
5431707 Asian longhorned beetle Anoplophora glabripennis oviposition pit
1194110 willow sawfly Nematus oligospilus Dead and damaged willows. Incursion along the Molonglo River, ACT, Australia, March 2005
0010098 Ips engraver beetles Ips spp.
3057046 southeastern gray twig pruner Anelaphus villosus top of sapling pruned by beetle
1440119 tobacco hornworm Manduca sexta The tobacco tomato hornworms, Manduca sexta (Linnaeus), and Manduca quinquemaculata (Haworth), are potentially the most destructive insect pests of tobacco. They chew irregular holes in leaves and often feed along leaf margins. Newly hatched larvae are 1/4-inch long, pale green with a large horn at the posterior end. Larger larvae (up to 4 inches) are bright green in color. The tobacco hornworm larva has seven white diagonal stripes on each side and a curved red horn. The adult, a dark gray moth, has six round, orange-yellow spots on each side of the abdomen. Tomato hornworms have eight V-shaped marks on each side and the horn is straighter and blue-black.
2515036 oak splendour beetle Agrilus biguttatus dead tree infested by agrilus
2105038 lesser pine shoot beetle Tomicus minor Infested tree, Polhov Gradec near Ljubljana, Slovenia, June 1999
2100057 European silver fir weevil Pissodes piceae debarked dead tree
2912090 redheaded pine sawfly Neodiprion lecontei mid-instars
2511008 root aphids Pemphigus spp.
1398114 white pine cone beetle Conophthorus coniperda Dead cones hanging on tree
3040078 blade spruce Gall adelgid Adelges laricis
1194109 willow sawfly Nematus oligospilus dead and damaged willows. Incursion along the Molonglo River, ACT, Australia, March 2005
2651037 white pine weevil Pissodes strobi
0541062 woodwasps Xiphydria spp.
1260045 nun moth Lymantria monacha Totally defoliated tree. Sachsen, Germany
3040042 steelblue jewel beetle Phaenops cyanea
2734080 pine chafer Anomala oblivia feeding damage
3067050 red oak borer Enaphalodes rufulus lateral scars left by borers
1440122 stink bugs Stink bugs [several species including green, Acrosternum hilare (Say); southern green, Nezara viridula (Linnaeus), and brown, Euschistus servus (Say)] are green or gray-brown, shield shaped bugs slightly over 1/2 inch long when full grown. Young (nymphs) are similar to adults but are smaller and lack wings. Their beak-like mouthparts are used to remove plant sap. A salivary secretion, which is injected as the insect feeds, produces a rapid wilting of the leaf or stem. The leaf usually resumes its normal shape and is not permanently damaged. Scalded areas may develop on injured leaves during hot weather. Growers are likely to encounter injury symptoms and not see the insects. Damage is usually limited to scattered plants, often in border rows. Some stink bugs are beneficial insects. They resemble plant-feeding stink bugs but can be identified by the presence of a distinct spine on each "shoulder".
1441026 Douglas-fir beetle Dendroctonus pseudotsugae Golden Gate Canyon State Park, Colorado, March 1989
1259162 six-toothed spruce bark beetle Pityogenes chalcographus
1458080 balsam woolly adelgid Adelges piceae Defoliation of fraser fir; 1973
1199010 bronze birch borer Agrilus anxius
1327150 carrot weevil Listronotus oregonensis Oviposition scars on carrot stem (two vertical slits on stem in the center of the picture).
0718007 pales weevil Hylobius pales
1194108 willow sawfly Nematus oligospilus dead and damaged willows. Incursion along the Molonglo River, ACT, Australia, March 2005
1468357 European pine shoot moth Rhyacionia buoliana Mountain View Ranger District - Wasatch-Cache National Forest, Utah
1199011 birch leafminer Fenusa pusilla Leaf mines
1312021 western pine beetle Dendroctonus brevicomis Exit holes.
1393006 Asian longhorned beetle Anoplophora glabripennis Ravenswood infestation - Chicago - July 1998
1199036 white pine weevil Pissodes strobi Stem deformity caused by an earlier attack
2912100 pine chafer Anomala oblivia due to adult feeding
5428797 emerald ash borer Agrilus planipennis
5428802 emerald ash borer Agrilus planipennis
5428796 emerald ash borer Agrilus planipennis
1269026 European spruce bark beetle Ips typographus Infested tree.
3225056 pine webworm Pococera robustella note frass and webbing
1241471 Douglas-fir beetle Dendroctonus pseudotsugae Trees killed will have red crowns several months after a successful attack.
2103043 small fir bark beetle Cryphalus piceae Stojna, Kocevska region, Slovenia, 3-23-2003.
4212057 poplar borer Saperda calcarata varnish streaking
3067037 leafcurl midges Dasineura spp.
0023032 ragwort seed fly Botanophila seneciella exudate from feeding
5429887 redheaded flea beetle Systena frontalis
2511062 flower thrips Frankliniella spp. Thrips-vectored tomato spotted wilt symptoms in tobacco
1123048 pales weevil Hylobius pales Weevil feeding on terminal of fir.
1468287 white fir needleminer Epinotia meritana
3067004 tupelo borer Aegomorphus morrisii bark indicators at attack sites on sapling
0488048 tip moth
0805073 western spruce budworm Choristoneura freemani
1199016 pine engraver Ips pini Exit holes
0012015 leaf wood beetle Cryptocephalus pini on needles of the previous year
1398112 white pine cone borer Eucosma tocullionana Attacked mature cones, early August. Oconto River Seed orchard, Nicolet National Forest, WI
1258052 lesser pine shoot beetle Tomicus minor Note horizontal feeding galleries and exit holes
0745023 black turpentine beetle Dendroctonus terebrans pitch tubes and infestation following mechanical damage
1304014 lesser peachtree borer Synanthedon pictipes
1455163 southwestern tent caterpillar Malacosoma incurvum
1246046 birch leafminer Fenusa pusilla
3036095 red oak borer Enaphalodes rufulus old damage at base of tree
1191009 steelblue jewel beetle Phaenops cyanea a damaged tree showing debarked stem together with green crown, near Praha, February 1996
3066087 eastern ash bark beetle Hylesinus aculeatus galleries on surface of sapwood
1258091 European spruce bark beetle Ips typographus
1269008 great spruce bark beetle Dendroctonus micans
1312030 pine needle sheathminer Zelleria haimbachi
0007076 red oak borer Enaphalodes rufulus It is at outbreak levels in the area and characteristic signs of attack include "wet spots" where young larva are feeding under the bark.
1241515 white pine weevil Pissodes strobi
1258309 black spruce beetle Tetropium castaneum
1441063 sugar pine tortrix Choristoneura lambertiana defoliation
1171064 fir engraver Scolytus ventralis Bubbled bark from old attacks
2253085 western balsam bark beetle Dryocoetes confusus
2253066 lodgepole terminal weevil Pissodes terminalis terminal damage
1398238 bronze poplar borer Agrilus liragus Winding gallery pattern showing on the outer bark
1396117 red turpentine beetle Dendroctonus valens
2253004 lodgepole terminal weevil Pissodes terminalis terminal damage to small tree
1207029 fir engraver Scolytus ventralis Small group of fir killed by beetle in Little Bald Mountain area, Walla Walla Ranger District, 1976
1678034 Douglas-fir tussock moth Orgyia pseudotsugata
1468308 sugar pine tortrix Choristoneura lambertiana past defoliation evident
2089079 Ips engraver beetles Ips spp. Red topped pine infested by beetles
2134019 larger pine shoot beetle Tomicus piniperda crown with broken off twigs after imaginal feeding
4212026 jack pine budworm Choristoneura pinus pinus old dead top from defoliation
2721055 redheaded pine sawfly Neodiprion lecontei characteristic feeding damage
3056020 chestnut timberworm Melittomma sericeum dead chestnut and live sprouts
2100083 bark beetle Pityokteines spinidens dead trees
2133078 six-spined engraver beetle Ips sexdentatus trunk with galleries, central way of gallery is slightly engraved in sapwood; scale: large quadrate 1 x 1 cm, small one 1 x 1 mm
2100096 European oak bark beetle Scolytus intricatus debarked infested tree
4544057 large brown trunk beetle Hylobius abietis
4212022 jack pine budworm Choristoneura pinus pinus defoliation of understory seedlings
4212024 jack pine budworm Choristoneura pinus pinus defoliation
3227025 mountain pine beetle Dendroctonus ponderosae
1748055 sugar maple borer Glycobius speciosus
2101088 European spruce bark beetle Ips typographus reddish tree
4212023 jack pine budworm Choristoneura pinus pinus defoliation
2133092 steelblue jewel beetle Phaenops cyanea removed piece of bark on Pinus trunk by woodpeckers, first sign of Phanops attack in fall or winter during hibernation of larvae inside the bark
3570032 large larch bark beetle Ips cembrae
3040040 engraver beetle Ips acuminatus
1223124 pecan serpentine leafminer Stigmella judlandifoliella
1223125 pecan serpentine leafminer Stigmella judlandifoliella
2132078 debarking weevil Hylobius xiaoi Girdled tree
1468309 sugar pine tortrix Choristoneura lambertiana
3067090 living-hickory borer Goes pulcher
5429085 larch gall moth Cydia milleniana
5429086 larch gall moth Cydia milleniana
4544094 blade spruce Gall adelgid Adelges laricis
4212042 white pine weevil Pissodes strobi chip cocoons
5429228 European oak leaf roller Tortrix viridana
5429214 European pine shoot moth Rhyacionia buoliana
5429208 Pine resin-gall moth Retinia resinella
5429078 Tortricid moth Cydia fagiglandana
2134001 steelblue jewel beetle Phaenops cyanea tree attacked by Phanops, bark is removed by woodpeckers searching for Phanops larvae, Pinus stand was defoliated by Nun Moth one year before
3067045 oak sapling borer Goes tesselatus
2133084 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, hole crown of tree A
2133091 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, detail of tree D
1306009 mountain pine beetle Dendroctonus ponderosae spot infestation
1231057 metalic wood-boring beetle Agrilus populneus
1468275 poplar borer Saperda calcarata
2101090 European spruce bark beetle Ips typographus resin flux on the bark
1150058 southern pine beetle Dendroctonus frontalis
1546084 southern pine beetle Dendroctonus frontalis Ground photo of four Notch showing dead trees already vacated by southern pine beetles and left standing because of wilderness designation of land.
1546086 southern pine beetle Dendroctonus frontalis Ground photo of Four Notch showing filled and standing dead rtrees killed by southern pine beetle
1512076 Texas leafcutting ant Atta texana Seedling victim of about 1/2 hr town ant attention
2100052 European silver fir weevil Pissodes piceae resin flux on the bark
2101074 six-spined engraver beetle Ips sexdentatus dead trees
0485026 conifer sawflies Neodiprion spp. Feeding damage
1259172 six-toothed spruce bark beetle Pityogenes chalcographus
1300032 larger pine shoot beetle Tomicus piniperda Pine tree with many dying, flagging terminals due to pine shoot beetle adult
1791067 pine chafer Anomala oblivia Needles clipped and browning are characteristic of feeding
0284017 southern pine beetle Dendroctonus frontalis winter-infested trees in which bark has been removed by woodpeckers
1191004 European spruce bark beetle Ips typographus under certain conditions the attacked trees show green crowns together with debarked stems, near Praha, September 1998
1191015 small poplar borer Saperda populnea damage to young stem; larval gallery in the cut
2253049 larch casebearer Coleophora laricella defoliation and needle color change due to feeding of larvae
2252019 spruce budworm Choristoneura fumiferana defoliation
2733004 southern pine beetle Dendroctonus frontalis pitch tubes
2100060 European silver fir weevil Pissodes piceae dead tree
1259049 six-spined engraver beetle Ips sexdentatus
1241476 fir engraver Scolytus ventralis Top kill and tree mortality.
2132081 debarking weevil Hylobius xiaoi
1231056 metalic wood-boring beetle Agrilus populneus
1587050 spruce beetle Dendroctonus rufipennis spruce beetle mortality
1587031 pine engraver Ips pini PP topkilled by Ips pini
1587140 pine butterfly Neophasia menapia
1587126 western hemlock looper Lambdina fiscellaria lugubrosa looper mortality
1587024 Douglas-fir engraver Scolytus unispinosus DF top killed during droughty period, probably DF engraver beetles or DF pole beetle
1587158 western spruce budworm Choristoneura freemani defoliated top
1587146 hemlock sawfly Neodiprion tsugae defoliation
1587127 western hemlock looper Lambdina fiscellaria lugubrosa
1587110 Contarinia spp. Contarinia spp.
1587105 Douglas-fir tussock moth Orgyia pseudotsugata
1587103 Douglas-fir tussock moth Orgyia pseudotsugata
1587095 Douglas-fir twig weevil Cylindrocopturus furnissi
1587082 white pine weevil Pissodes strobi
1587054 western balsam bark beetle Dryocoetes confusus Old balsam woolly adelgid and western balsam bark beetle, subalpine fir (SAF)
1587051 western balsam bark beetle Dryocoetes confusus
1587041 mountain pine beetle Dendroctonus ponderosae MPB, Current year fader, Fading PP in control plot
5429034 aspen roller Ancylis laetana
1468214 western spruce budworm Choristoneura freemani
1433016 poplar-and-willow borer Cryptorhynchus lapathi severe damage on Alnus viridis
1388033 leafhopper Typhlocyba albicans Michigan's Upper Peninsula
1388025 red pine shoot moth Dioryctria resinosella Pitch tube on a shoot infested with a single larva
0014062 red oak borer Enaphalodes rufulus boring damage, June 2001
1112001 white pine weevil Pissodes strobi Old dead terminal. McGregor Model Forest, British Columbia.
1388021 twolined chestnut borer Agrilus bilineatus Early signs of attack. Dead and dying branches in the upper crown.
1627049 locust leafminer Odontota dorsalis The mines of their larvae seen here on the right are sometimes responsible for turning entire black locust trees brown in mid-summer. The adults are pests as well. Their feeding damage to black locust is pictured here on the left.
1269038 silver fir bark beetle Pityokteines curvidens
1223178 giant root borers Prionus spp.
1349001 European pine shoot moth Rhyacionia buoliana
1223148 Asian chestnut gall wasp Dryocosmus kuriphilus
0745078 southern pine beetle Dendroctonus frontalis pitch tubes & pitchout on loblolly pine
1241738 cone worms Dioryctria spp. Pitch mass showing mass opened to expose larva.
1468118 white pine weevil Pissodes strobi
1470053 spruce budworm Choristoneura fumiferana
1247098 southern pine beetle Dendroctonus frontalis Oconee National Forest
0976077 sawflies South Platte Ranger District
1627050 arborvitae leafminer Argyresthia thuiella Yellow or brown tips on arborvitae indicate the presence.
1241733 sequoia pitch moth Synanthedon sequoiae Pitch masses indicating entrance and feeding sites.
1468119 lodgepole terminal weevil Pissodes terminalis
1231043 metalic wood-boring beetle Lamprodila decipiens
1259047 large larch bark beetle Ips cembrae
0806070 western spruce budworm Choristoneura freemani with 4-foot topkill from defoliation. Malheur National Forest, northeastern Oregon
2515049 large brown trunk beetle Hylobius abietis dead young tree debarked at the collar by Hylobius
0806065 western spruce budworm Choristoneura freemani Saplings & small poles with topkill from defolliation. Malheur National Forest, northeastern Oregon
0177092 large aspen tortrix Choristoneura conflictana
1220095 oak flea beetle Altica quercetorum defoliated and partly new flushed trees
1223048 pecan leaf casebearer Acrobasis juglandis
1220094 oak flea beetle Altica quercetorum and new flushed leaf cluster
1304013 lesser peachtree borer Synanthedon pictipes
1141019 poplar borer Saperda carcharias
2121099 red pine shoot moth Dioryctria resinosella Infested shoot that has died, characteristic damage in late summer. Photo taken in July 2005
0485021 Ips engraver beetles Ips spp. initial attack on 3-year old pine at Brumby farm.
1241516 lodgepole terminal weevil Pissodes terminalis
1229014 persimmon borer Sannina uroceriformis
1224105 pecan bud moth Gretchena bolliana
1467060 mountain pine beetle Dendroctonus ponderosae
1258157 fir bark beetle Pityophthorus pityographus Often attacks upper crown of weakened trees
0488065 pip gall wasp Callirhytis operator to acorn
0022082 black-margined loosestrife beetle Galerucella calmariensis
0806066 western spruce budworm Choristoneura freemani Mortality. Aldrich Mountains, Bear Valley Ranger District, Malheur National Forest, northeastern Oregon
0806064 western spruce budworm Choristoneura freemani seedling missing about 50% of its foliage from defoliation. Malheur National Forest, northeastern Oregon
2121098 white pine weevil Pissodes strobi Terminal portion of a Jack pine killed by white pine weevil larval feeding. This is relatively common in Michigan and Wisconsin. Photo taken  July 2005
1224010 pecan leaf casebearer Acrobasis juglandis Spring damage.
0454081 fall webworm Hyphantria cunea damage to mulberry.
1238076 southern pine sawyer Monochamus titillator Frass on morning glories at base of tree
0177068 western blackheaded budworm Acleris gloverana Single tree defoliation
0176099 banana moth Opogona sacchari Large Kentia palm completely destroyed
1431041 twig girdler Oncideres cingulata Young hickory showing typical damage; girdled leader.
1190025 European spruce bark beetle Ips typographus debarking tree
1678059 white pine weevil Pissodes strobi dead spruce terminal, adult emergence holes visible
1300036 viburnum leaf beetle Pyrrhalta viburni Larval and adult feeding damage
1269030 nun moth Lymantria monacha European larch and Norway spruce stand damage.
1247157 oak skeletonizer Bucculatrix ainsliella 1993.
1300034 larger pine shoot beetle Tomicus piniperda Crowns of pine trees damaged by pine shoot beetle; note thinning of crown due to fallen terminals
2100066 six-toothed spruce bark beetle Pityogenes chalcographus dead tree
3067007 Japanese beetle Popillia japonica on seedlings
3057002 poplar borer Saperda calcarata stem breakage (Note galleries at site of break)
2103013 great capricorn beetle Cerambyx cerdo Brežice, Slovenia, May 2003
1296187 leaf blotch miner moth Phyllonorycter issikii Hungary
3056055 poplar gall borer Saperda inornata multiple gall-like swellings (Fig. 131F - Solomon)
1296065 leaf blotch miner moth Phyllonorycter maestingella
3066046 poplar leaf aphid Chaitophorus populicola on 1st year plantation
1312015 fir engraver Scolytus ventralis Top-kill
2108030 Ips engraver beetles Ips spp. On fallen pines or on pine logs, the accumulations of red or brown sawdust on the surface of the bark are another sign of attacks by secondary bark beetles (Ips spp.)
2108032 southern pine beetle Dendroctonus frontalis tree with large number of pitch tubes.
3056068 poplar-and-willow borer Cryptorhynchus lapathi in hybrid poplar stem breakage
2108048 southern pine beetle Dendroctonus frontalis Stage 1 tree.
2108045 southern pine beetle Dendroctonus frontalis Pitch tubes
2108046 southern pine beetle Dendroctonus frontalis Pitch tubes indicating attacks of adult SPB on the trunk of a pine tree.
1329051 leaf wood beetle Cryptocephalus pini Cimolais Pordenone, Italy February 1997; Damage is caused by adult beetle only, larvae are scavengers on the forest litter.
3067040 ash borer Podosesia syringae attack & frass on terminal
2133090 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, hole crown of tree D
1470066 Nantucket pine tip moth Rhyacionia frustrana
2108072 mountain pine beetle Dendroctonus ponderosae in pitch tubes,
2108073 mountain pine beetle Dendroctonus ponderosae fresh galleries
1467091 spruce coneworm Dioryctria abietella
1190030 European spruce bark beetle Ips typographus brown saw dust showing activity under the bark
1300029 larger pine shoot beetle Tomicus piniperda Entrance turrets of adult pine shoot beetle on pine terminal
1306023 Douglas-fir beetle Dendroctonus pseudotsugae spot infestation
3067003 walnut caterpillar Datana integerrima mass of molting larvae on side of trunk
3066019 pinhole borer Platypus spp. in hardwood log (note strings of frass being extruded from gallery openings)
2133086 nun moth Lymantria monacha defoliation pattern of Pinus sylvestris after the second year of a Nun Moth outbreak; in the second year new year needles are not attacked, in contrast to the older needles, hole crown of tree B
1241737 cone worms Dioryctria spp. Pitch mass on small lodgepole pine stem showing appearance of resin mass.
1247166 hickory gall phylloxera Phylloxera caryaecaulis 1984
1241735 sequoia pitch moth Synanthedon sequoiae Pine with unusually heavy damage.
3066068 hickory agrilus Agrilus otiosus note spiral swellings in bark over gallery
3067073 whitefringed beetles Naupactus spp. damaged seedling
1296059 leaf blotch miner moth Micrurapteryx kollariella
1399063 pine root collar weevil Hylobius radicis
1430135 white flannel moth Norape ovina
1259171 six-toothed spruce bark beetle Pityogenes chalcographus
2109021 huisache girdler Oncideres pustulata
2253006 western pineshoot borer Eucosma sonomana shoot split to show larva damage. Note larva at end of tweezers
1269015 engraver beetle Ips acuminatus Tree mortality. Switzerland
1259167 six-toothed spruce bark beetle Pityogenes chalcographus
1238072 bronze birch borer Agrilus anxius Greenville, SC
1541586 southern pine sawyer Monochamus titillator
1541375 plant bug Lopidea robiniae
1541020 black turpentine beetle Dendroctonus terebrans
1259176 six-toothed spruce bark beetle Pityogenes chalcographus
0886046 copper leafy spurge flea beetle Aphthona flava
0177054 tuber flea beetle Epitrix tuberis Potato tuber showing a heavy darkened superficial channel due to larvae
2109095 granulate ambrosia beetle Xylosandrus crassiusculus
2110019 redbay ambrosia beetle Xyleborus glabratus frass tubes;
1241463 Ips engraver beetles Ips spp. Top kill from Ips attack.
1258335 black fir sawyer Monochamus urussovii
1231123 long-horned beetle Semanotus russicus
1231099 long-horned beetle Hesperophanes griseus
1259117 nun moth Lymantria monacha
0717038 white pine weevil Pissodes strobi This insect feeds on the tops of White Pines and Norway Spruce. Feeding by larvae causes the leader and the top whorl to die.
1121041 European spruce bark beetle Ips typographus boring dust on bark
1300033 larger pine shoot beetle Tomicus piniperda Pine terminals, infested by adult pine shoot beetle, fallen from tree
0796031 southern pine coneworm Dioryctria amatella bud and shoot damage larva following male flower injuries on longleaf pine, a seed orchard pest
1349007 Sirex woodwasp Sirex noctilio
1350063 lesser knapweed flower weevil Larinus minutus emergence hole
2108028 southern pine beetle Dendroctonus frontalis In expanding infestations, here stages of attack can be distinguished: stage 1 with green foliage, soft pitch tubes in the bark crevices and with the wood surface having a white color (without bark beetle galleries); stage 2 with fading or yellow crown, serpentine galleries under the bark, and the surface of the wood being brown in color; stage 3 with a red or maroon crown (or without foliage) and with small, circular exit holes in the bark. Olancho Region, Honduras
2108027 southern pine beetle Dendroctonus frontalis Stage 3 - small, circular exit holes in the bark. Honduras
2108043 southern pine beetle Dendroctonus frontalis Pitch tube. Olancho Region, Honduras
1207055 mountain pine beetle Dendroctonus ponderosae pine stand killed by beetle, La Grande Ranger District
1468286 white fir needleminer Epinotia meritana
1349002 European pine shoot moth Rhyacionia buoliana
1141013 small poplar borer Saperda populnea oviposition scars
1312039 spruce aphid Elatobium abietinum
1326023 white pine weevil Pissodes strobi Codominant terminals produced by damage
1546253 Texas leafcutting ant Atta texana defoliation in pine nursery by texas leaf cutting ant
1327153 carrot weevil Listronotus oregonensis Oviposition scar (above the crown on the left third of the stem) and initial damage near the crown (middle of stem). Grubs hatch and bore down the stem to the crown.
3225080 Asian longhorned beetle Anoplophora glabripennis
1371027 Ectoedemia liebwerdella Ectoedemia liebwerdella mine in the bark - potential infectious court for beech bark disease. Banský Studenec, Slovakia
1406083 poplar gall borer Saperda inornata gall on hybrid cottonwood
1476090 lettuce root aphid Pemphigus bursarius gall produced on popular petiole
1546170 bark beetles Bark removed from a tree infested with bark beetles by woodpeckers searching for the insects.
5289056 southern pine beetle Dendroctonus frontalis natural causes
5289058 southern pine beetle Dendroctonus frontalis natural causes
5289060 southern pine beetle Dendroctonus frontalis Tornado damage can be inciting factors for Southern Pine beetle outbreaks.
5289061 southern pine beetle Dendroctonus frontalis Tornado damage can be inciting factors for Southern Pine beetle outbreaks.
5289052 southern pine beetle Dendroctonus frontalis Lightning strikes can be inciting factors for Southern Pine beetle outbreaks.
5289053 southern pine beetle Dendroctonus frontalis Lightning strikes can be inciting factors for Southern Pine beetle outbreaks.
5289054 southern pine beetle Dendroctonus frontalis Lightning strikes can be inciting factors for Southern Pine beetle outbreaks.
5289051 southern pine beetle Dendroctonus frontalis Lightning strikes can be inciting factors for Southern Pine beetle outbreaks.
5288074 Ips engraver beetles Ips spp.
5288071 Ips engraver beetles Ips spp.
5288065 Ips engraver beetles Ips spp.
5288066 Ips engraver beetles Ips spp.
5288067 Ips engraver beetles Ips spp.
5288069 Ips engraver beetles Ips spp.
5288064 Ips engraver beetles Ips spp.
5288059 Ips engraver beetles Ips spp. Ips avul & calli in Slash pine
5424289 hemlock borer Phaenops fulvoguttata Infested tree.  Woodpecker probing has stripped the bark off this infested tree.  The reddish inner-bark is very visible against a snowy background. March 2010
5410884 hazel leaf-roller Byctiscus betulae
5410885 hazel leaf-roller Byctiscus betulae
5410886 hazel leaf-roller Byctiscus betulae
5410997 aphid Tetraneura ulmi
5424353 redheaded pine sawfly Neodiprion lecontei
5424305 Nantucket pine tip moth Rhyacionia frustrana
2143007 pinyon sawfly Neodiprion edulicolus needles after feeding; possibly Neodipriodon edulicolus
5424255 European pine sawfly Neodiprion sertifer Classic old-foliage defolaition event by European pine sawfly.  New year foliage is undamaged. 
5424256 European pine sawfly Neodiprion sertifer European pine sawfly defoliation, early spring feeding on previous years needles.
5424259 European pine sawfly Neodiprion sertifer Early season defoliation by European pine sawfly on a red pine.  Larvae eat only previous-years needles. 
5424548 small southern pine engraver Ips avulsus
2143031 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella; mass opened to show chamber formed by borer; note characteristic frass mixed in pitch  
5424301 Nantucket pine tip moth Rhyacionia frustrana
5424302 Nantucket pine tip moth Rhyacionia frustrana
5424303 Nantucket pine tip moth Rhyacionia frustrana
5424304 Nantucket pine tip moth Rhyacionia frustrana
1546115 white pine cone beetle Conophthorus coniperda
1546001 small southern pine engraver Ips avulsus Upper crown of longleaf pine killed by Ips avulsus.
5422217 western drywood termite Incisitermes minor Damage to a wooden post.
5422267 European elm flea weevil Orchestes alni Shothole symptoms produced by adult feeding
5422266 European elm flea weevil Orchestes alni Shothole symptoms produced by adult feeding
5422264 European elm flea weevil Orchestes alni leaf mining produced by larvae; shotholes by adults
2181023 spruce beetle Dendroctonus rufipennis
2181030 spruce beetle Dendroctonus rufipennis woodpecker damage on infested spruce
2180076 spruce beetle Dendroctonus rufipennis
1549842 dogwood twig borer Oberea tripunctata
1543905 native holly leafminer Phytomyza ilicicola
1543116 southern pine beetle Dendroctonus frontalis
1580052 flatheaded appletree borer Chrysobothris femorata
5410782 beech bark beetle Taphrorychus bicolor
5410784 beech bark beetle Taphrorychus bicolor
5410779 beech bark beetle Taphrorychus bicolor
5410780 beech bark beetle Taphrorychus bicolor
5410781 beech bark beetle Taphrorychus bicolor
1549552 gouty oak gall Callirhytis quercuspunctata
1549198 green peach aphid Myzus persicae cast skins and sooty mold
1549185 giant willow aphid Tuberolachnus salignus
5199009 citrus leafminer Phyllocnistis citrella
5403750 soapberry borer Agrilus prionurus
5403751 soapberry borer Agrilus prionurus
5403752 soapberry borer Agrilus prionurus
5403753 soapberry borer Agrilus prionurus
5403754 soapberry borer Agrilus prionurus
5403758 soapberry borer Agrilus prionurus
5403760 soapberry borer Agrilus prionurus top kill
5403761 soapberry borer Agrilus prionurus
5403739 soapberry borer Agrilus prionurus epicormic branching
5403741 soapberry borer Agrilus prionurus Infested soapberry & bark chips
5403742 soapberry borer Agrilus prionurus
5403744 soapberry borer Agrilus prionurus
5196070 Asian citrus psyllid Diaphorina citri
5196048 pink hibiscus mealybug Maconellicoccus hirsutus
1564016 larch casebearer Coleophora laricella Damage to larch foliage caused by feeding by larch casebearer
5394399 honeysuckle aphid Hyadaphis tataricae The leaf curling cause by the aphids on a Bell's Honeysuckle
0177010 melon thrips Thrips palmi Damage to aubergine fruit.
1523081 emerald ash borer Agrilus planipennis entire cambium destroyed by feeding
1523069 emerald ash borer Agrilus planipennis
1523071 emerald ash borer Agrilus planipennis root sprouts and crown dieback are typical indicatiors of an infested tree
1523074 emerald ash borer Agrilus planipennis root sprouts and crown dieback are typical indicatiors of an infested tree
1523075 emerald ash borer Agrilus planipennis
1523061 birch leafminer Fenusa pusilla
1523055 boxwood psyllid Cacopsylla buxi
1523046 periodical cicada Magicicada spp. flagging resulting from oviposition
1523047 white pine weevil Pissodes strobi
1523048 white pine weevil Pissodes strobi
1523052 white pine weevil Pissodes strobi
5387818 California flatheaded borer Phaenops californica Cambial damage to Jeffrey pine, P. jeffreyi, caused by the California flatheaded borer, Melanophila californica. 4/28/08.
5387804 gouty pitch midge Cecidomyia piniinopis Infested ponderosa pine shoot cut open to expose larvae of the gouty pitch midge, Cecidomyia piniinopis. 12/20/07.
5387819 pine needle sheathminer Zelleria haimbachi Ponderosa pine shoot damaged by the pine needle sheathminer, Zelleria haimbachi. 9/12/07.
5387830 ponderosa pine tip moth Rhyacionia zozana Ponderosa pine shoot damaged by the ponderosa pine tip moth, Rhyacionia zozana. 5/31/07.
5387831 ponderosa pine tip moth Rhyacionia zozana Ponderosa pine shoot damaged by the ponderosa pine tip moth, Rhyacionia zozana. Larvae mine the interior of shoots, often leaving little wood behind. 6/18/07.
5383064 lesser pine shoot beetle Tomicus minor adult hole on pine shoot
5383028 long-horned beetle Arhopalus rusticus heavy attack
5179076 thrips Holopothrips tabebuia
5179077 thrips Holopothrips tabebuia
5179078 thrips Holopothrips tabebuia
5179080 thrips Holopothrips tabebuia
5179081 thrips Holopothrips tabebuia
5179082 thrips Holopothrips tabebuia
5174052 Altai larch longhorn beetle Xylotrechus altaicus August 2006; collected from Siberian larch (Larix sibirica)
5177075 black-veined white butterfly Aporia crataegi summer 2005
5389758 birch skeletonizer Bucculatrix canadensisella larvae on birch leaf
5378539 hazel leaf-roller Byctiscus betulae
5378540 hazel leaf-roller Byctiscus betulae
5378541 hazel leaf-roller Byctiscus betulae
5378759 gall midge Janetia cerris
5382182 banded elm bark beetle Scolytus schevyrewi Recently constructed entrance hole with small amount of weeping at wound site.  
5382164 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes  
5382166 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes  
5382170 mountain pine beetle Dendroctonus ponderosae Fresh pitch tube  
5382132 scarab beetle Phyllophaga falsa Adult feeding injury to pinyon foliage.  Photo taken August 19, 2008.  
5382133 scarab beetle Phyllophaga falsa Adult feeding injury to pinyon foliage.  Photo taken August 19, 2008  
5382130 scarab beetle Phyllophaga falsa Adult feeding injury to pinyon foliage.  Photo taken August 19, 2008.  
5382038 pinyon needle scale Matsucoccus acalyptus Pinyon showing crown thinning and grayish coloration of chronic infestation with pinyon needle scale.  
5379880 lily leaf beetle Lilioceris lilii Infested patch of Lilies  
5379267 beech weevil Orchestes fagi
5377851 aphid Prociphilus bumeliae
5377837 aphid Prociphilus bumeliae
5377838 aphid Prociphilus bumeliae
5377883 orange spruce needleminer Coleotechnites piceaella
5377884 orange spruce needleminer Coleotechnites piceaella
5377885 orange spruce needleminer Coleotechnites piceaella
5377887 orange spruce needleminer Coleotechnites piceaella
5377888 orange spruce needleminer Coleotechnites piceaella
5382763 beech bark beetle Taphrorychus bicolor
5386034 palm moth Paysandisia archon
0010092 red oak borer Enaphalodes rufulus The bark has been stripped from this red oak so as to show the borer activity occuring. Note the large number of bore holes in the stem.
0010093 red oak borer Enaphalodes rufulus This red oak had died and the bark was peeling off the tree.
0010094 red oak borer Enaphalodes rufulus This is a cross sectional cut of the bole of a red oak, showing some tunneling and pupal chambers of the borer.
5377678 casebearer moths Coleophora spp.
5384472 rice water weevil Lissorhoptrus oryzophilus Plants on left with short roots were damaged by rice water weevil larvae feeding on roots. Plants on right were grown from dermacor treated seed.
5378062 oak apple gall wasp Biorhiza pallida
5382321 pales weevil Hylobius pales
1254023 white pine weevil Pissodes strobi Dead leader in young Engelmann spruce
5382347 large aspen tortrix Choristoneura conflictana Aspens defoliated by large aspen tortix
5382380 large aspen tortrix Choristoneura conflictana Defoliation of quaking aspen
5382433 honeylocust leafhopper Macropsis fumipennis Insects and damage to foliage
5382438 mountain pine beetle Dendroctonus ponderosae Tree mortality
5371378 leaf rolling weevil Byctiscus populi
5371056 beech splendor beetle Agrilus viridis
5371057 beech splendor beetle Agrilus viridis
5383236 periodical cicada Magicicada septendecim Oak tree in yard with flagging damage
5382500 western spruce budworm Choristoneura freemani Defoliation of Engelmann spruce and subalpine fir
0017013 pine processionary moth Thaumetopoea pityocampa Defoliation by early instar larvae
0017015 pine processionary moth Thaumetopoea pityocampa heavy defoliation
0017020 Masson pine caterpillar Dendrolimus punctatus defoliation
0017001 spiny caterpillar Ormiscodes cinnamomea defoliation
0017010 Mediterranean pine engraver beetle Orthotomicus erosus Pinus brutia killed by Mediterranean pine beetle, Turkish Cyprus
0017005 nun moth Lymantria monacha defoliation
0017006 nun moth Lymantria monacha defoliation to understory
0017062 Sirex woodwasp Sirex noctilio Aerial view of plantation with low level of tree mortality
0758022 western spruce budworm Choristoneura freemani Damage to new growth on grand fir
0758035 gypsy moth Lymantria dispar Oak mortality due to repeated defoliation by gypsy moth
0758083 beech scale Cryptococcus fagisuga Beech tree with chlorotic foliage, a symptom of beech bark disease.
0758107 pine engraver Ips pini Top kill caused by pine engraver
0758134 California fivespined ips Ips paraconfusus Trees with top kill from Ips attack, Rubicon River drainage.
0758135 California fivespined ips Ips paraconfusus Top kill in large ponderosa pines
0758127 mountain pine beetle Dendroctonus ponderosae Aerial view of tree mortality
0758128 mountain pine beetle Dendroctonus ponderosae Aerial view of tree mortality.
0758129 mountain pine beetle Dendroctonus ponderosae Aerial view of tree mortality. Note, this scene shows mortality caused by two generations of beetles. The yellow-green crowns were attacked one year ago and the reddish brown crowns were attacked two years ago.
0758131 mountain pine beetle Dendroctonus ponderosae Aerial view of severe tree mortality. The line at photo center is the US/Canada border. This photo illustrates that insects do not respect political boundaries.
0758137 bark beetles Aerial view of a barkbeetle infestation, The infestation is the result of a combined attack by Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area
0758138 bark beetles Aerial of scattered tree mortality in ponderosa pine. The infestations are the result of combined attacks of Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area
0758140 bark beetles Aerial view of tree mortality. The attacks are a combination of Ips paraconfusus and Dendroctonus brevicomis.
0758147 Douglas-fir beetle Dendroctonus pseudotsugae Tree mortality
1254024 western spruce budworm Choristoneura freemani Defoliation on young grand fir, Mt. Hood NF, OR
5383254 redheaded pine sawfly Neodiprion lecontei Heavy defoliation of longleaf pine
5383259 redheaded pine sawfly Neodiprion lecontei
5378134 aphid Tetraneura ulmi
5378126 gall midge Rabdophaga salicis
5378125 gall midge Rabdophaga salicis
5378879 mossyrose gall wasp Diplolepis rosae
5378878 locust digitate leaf miner Parectopa robiniella
5378873 locust digitate leaf miner Parectopa robiniella
5378112 gall midge Obolodiplosis robiniae
5378738 gall midge Dryomia circinnans
5378071 gall midge Dryomia circinnans
5378069 Cynipid gall wasp Cynips quercusfolii
5378064 great capricorn beetle Cerambyx cerdo
5378060 oak roller weevil Attelabus nitens
5378055 Cynipid gall wasp Aphelonyx cerricola
5378054 Cynipid gall wasp Aphelonyx cerricola
5378053 Cynipid gall wasp Andricus solitarius
5378052 Cynipid gall wasp Andricus quercustozae A gall with exit hole.
5378051 Cynipid gall wasp Andricus quercustozae
5378486 knopper gall Andricus quercuscalicis
5378048 knopper gall Andricus quercuscalicis
5378046 knopper gall Andricus quercuscalicis
5378047 knopper gall Andricus quercuscalicis
5378044 Cynipid gall wasp Andricus lignicolus
5378470 marble gall Andricus kollari
5378043 marble gall Andricus kollari
5378042 Cynipid gall wasp Andricus glutinosus
5378040 Cynipid gall wasp Andricus crispator
5378041 Cynipid gall wasp Andricus curvator
5378037 Cynipid gall wasp Andricus crispator
5378038 Cynipid gall wasp Andricus crispator
5378039 Cynipid gall wasp Andricus crispator
5378676 aphid Pemphigus spyrothecae
5378030 aphid Pemphigus spyrothecae
5378028 gall midge Lasioptera populnea
5378616 European pine shoot moth Rhyacionia buoliana
5378108 leafminer Stigmella atricapitella
5378081 gypsy moth Lymantria dispar
5378058 oak roller weevil Attelabus nitens
5378036 oak flea beetle Altica quercetorum
5378035 oak flea beetle Altica quercetorum
5378025 poplar-and-willow borer Cryptorhynchus lapathi
5378656 browntail moth Euproctis chrysorrhoea
5378655 browntail moth Euproctis chrysorrhoea
5378439 browntail moth Euproctis chrysorrhoea
5378433 browntail moth Euproctis chrysorrhoea
5378002 striped ambrosia beetle Trypodendron lineatum
5377994 large brown trunk beetle Hylobius abietis
5377993 large brown trunk beetle Hylobius abietis
5377992 large brown trunk beetle Hylobius abietis
5378627 larger pine shoot beetle Tomicus piniperda
5379220 larger pine shoot beetle Tomicus piniperda
5378625 larger pine shoot beetle Tomicus piniperda
5378613 steelblue jewel beetle Phaenops cyanea
5377987 lesser pine shoot beetle Tomicus minor
5378611 bark beetle Orthotomicus robustus
5377960 web-spinning pine-sawfly Acantholyda hieroglyphica
5377961 web-spinning pine-sawfly Acantholyda hieroglyphica
5377958 web-spinning pine-sawfly Acantholyda hieroglyphica
5377959 web-spinning pine-sawfly Acantholyda hieroglyphica
5377956 web-spinning pine-sawfly Acantholyda hieroglyphica
5377957 web-spinning pine-sawfly Acantholyda hieroglyphica
5377949 adelgid Sacchiphantes viridis
5377950 adelgid Sacchiphantes viridis
5377948 adelgid Sacchiphantes viridis
5377951 adelgid Sacchiphantes viridis
5378587 six-toothed spruce bark beetle Pityogenes chalcographus
1238077 flatheaded or metallic wood borer Flathead borer on sugar maple with sapsucker damage
5378291 European spruce bark beetle Ips typographus
5377780 Ectoedemia liebwerdella Ectoedemia liebwerdella
5379882 lily leaf beetle Lilioceris lilii
1263065 melon thrips Thrips palmi
1263057 South African citrus thrips Scirtothrips aurantii
1263052 banana moth Opogona sacchari Damage on yucca
1263029 eucalyptus weevil Gonipterus scutellatus Adult damage
1263010 citrus longhorned beetle Anoplophora chinensis
1949059 apple maggot Rhagoletis pomonella Apple injured by apple maggot (Rhagoletis pomonella).
0725096 old world bollworm, cotton bollworm Helicoverpa armigera French beans attacked by Helicoverpa armigera. Note the larvae within the bean.
0660096 Argentine stem weevil Listronotus bonariensis Damage by larvae of Listronotus bonariensis.
0660062 peach twig borer Anarsia lineatella Young peach shoots attacked by Anarsia lineatella in spring.
5176078 flatheaded or metallic wood borer Twig mortality caused by a twig borer of the family Buprestidae on coigue, Nothofagus dombeyi, VIII Region, Chile
5176079 flatheaded or metallic wood borer Twig mortality on Coigue, Nothofagus dombeyi, caused by an unknown twig borer of the family Buprestidae, VIII Region, Chile
1248033 twig beetles Pityophthorus spp. Damage to twigs caused by a pinyon pine twig beetle near Durango, CO
1254001 mountain pine beetle Dendroctonus ponderosae Pitch tubes on bark surface
5346044 western tent caterpillar Malacosoma californicum Complete defoliation of aspen, Culebra Range, CO, July 2007
5346048 western tent caterpillar Malacosoma californicum Defoliaton of aspen, Mousca Pass, Sangre de Cristo Range, Colorado, July 2007
1540308 waved sphinx Ceratomia undulosa 6/9/1993
1524097 bollworm Helicoverpa zea Insect rating, 1st generation corn ear worm
1524101 European corn borer Ostrinia nubilalis Insect rating; 1st generation European Corn borer
2144088 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella
5356810 asparagus aphid Brachycorynella asparagi Damage to an asparagus plant caused by the asparagus aphid.
5360752 grasshoppers Damage to pear fruit caused by feeding by grasshoppers.
5361965 woolly apple aphid Eriosoma lanigerum Perennial canker on an apple tree, caused by woolly aphids (Eriosoma lanigerum).
5358606 flea beetles Aphthona spp. Dead stems of leafy spurge (Euphorbia esula) at a site in Montana where leafy spurge flea beetles (Aphthona spp.) were released as biological control agents in 1992.
5368109 pea leafminer Chromatomyia horticola
5368098 pea leafminer Liriomyza huidobrensis damage done by larvae
5368094 chilli gall midge Asphondylia gennadii attacks cause small, deformed pods
5361212 armyworm Mythimna unipuncta Damage to field corn caused by the armyworm.
5364171 Russian wheat aphid Diuraphis noxia Damage to seedheads of wheat caused by the Russian wheat aphid (Diuraphis noxia) - awns are trapped in the seedheads on damaged plants.
5364170 Russian wheat aphid Diuraphis noxia Damage to seedheads of wheat caused by the Russian wheat aphid (Diuraphis noxia).
2142099 pinyon needle scale Matsucoccus acalyptus defoliated tree
2143029 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella; upper mass opened to show chamber formed by borer
2143030 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella; lower mass opened to show chamber formed by borer
2143032 cone worms Dioryctria spp. pinyon pitch mass borer; mass opened to show chamber formed by larva
2143033 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella; upper mass opened to show chamber formed by borer
2143034 cone worms Dioryctria spp. pinyon pitch mass borer; likely D.albovittella; upper mass opened to show chamber formed by borer
2143044 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella; branch tips with pitch tubes
2143046 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella
2143047 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella
2143049 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella
2143053 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella
2143054 cone worms Dioryctria spp. pinyon tip moth; likely Dioryctria albovittella
5364348 thrips Close-up view of a bean leaf, showing feeding damage caused by thrips.
2142051 mountain pine beetle Dendroctonus ponderosae fading (red) crowns
2142052 mountain pine beetle Dendroctonus ponderosae pitch tubes
2142053 mountain pine beetle Dendroctonus ponderosae fading crowns; current-year attacks; dwarf mistletoe infections in lower branches
2142054 mountain pine beetle Dendroctonus ponderosae pitch-out
1473183 metalic wood-boring beetles Agrilus spp. gallery and stain; photo taken 7/1974
1473001 spruce beetle Dendroctonus rufipennis crown view of Engelman spruce recently killed by spruce beetle
5343092 emerald ash borer Agrilus planipennis
5304028 fall webworm Hyphantria cunea Large tent enclosing branch
5220067 coconut leafroller Hedylepta blackburni chewing on Cocos nucifera
1411013 southern pine beetle Dendroctonus frontalis
1411061 southern pine beetle Dendroctonus frontalis
2912015 cypress aphid Cinara cupressivora cypress aphid damage in Kenya
1490008 false chinch bug Nysius raphanus Adults massed on maturing flixweed in late spring
5250008 cotton lace bug Corythucha gossypii
1398169 long-horned beetles Evidence of tunneling by Cerambycid larva under the bark of a recently killed white spruce
0717044 root aphid Prociphilus americanus
5210014 poplar vagabond aphid Mordvilkoja vagabunda Dried 'pseudo-gall' produced in twigs of host plant.
5209073 currant aphid Cryptomyzus ribis Typical leafcurling produced on 'Red Lake' currant
5210018 alfalfa weevil Hypera postica Larval damage to first cutting
0758247 pandora moth Coloradia pandora Heavy defoliation of ponderosa pine
1520084 hemlock woolly adelgid Adelges tsugae HWA on hemlock needles
1428088 mountain pine beetle Dendroctonus ponderosae Fresh fading ponderosa pine due to previous year's mountain pine beetle attack.
1428089 mountain pine beetle Dendroctonus ponderosae Fresh fading pines due to previous year's beetle attack.
0758239 Douglas-fir beetle Dendroctonus pseudotsugae Trees killed by Douglas-fir beetle.
1510050 balsam woolly adelgid Adelges piceae Balsam wooly adelgid killed frazier fir
1510035 elm spanworm Ennomos subsignaria Elm spanworm defoliation
0355019 spruce gall aphids Adelges spp. thinning crowns
5202062 fall webworm Hyphantria cunea Tent on cherry in mid-September; Dunn Co., WI
5202058 red pine shoot moth Dioryctria resinosella dead red pine shoot killed by a tunneling red pine shoot moth caterpillar.
5202061 red pine shoot moth Dioryctria resinosella Dead shoot on red pine, mid-August, central WI; Photo taken in Jackson Co., WI
1484010 pine webworm Pococera robustella
5202043 white pine weevil Pissodes strobi
5202053 white pine weevil Pissodes strobi Terminal attack on a jack pine by the white pine weevil; Photo taken in Eau Claire County, Wisconsin
1484004 emerald ash borer Agrilus planipennis infested tree showing water sprouts or adventitious shoots
5136003 pine tussock moth Dasychira grisefacta Defoliation,
5136005 pine tussock moth Dasychira grisefacta Defoliation, western NE
5136006 pine tussock moth Dasychira grisefacta Defoliation, western NE
5136008 pine tussock moth Dasychira grisefacta Needle damage, western NE
5135082 Douglas-fir tussock moth Orgyia pseudotsugata Partial defoliation of Douglas-fir, North turkey Creek near Aspen Park, CO
5135083 Douglas-fir tussock moth Orgyia pseudotsugata Partial defoliation of Douglas-fir, North Turkey Creek near Aspen Park, CO
5135053 pinyon ips Ips confusus Aerial survey 2006; Aerial view of damage, near Canon City, CO
1626099 European hornet Vespa crabro Girdled branches due to removal of bark to be used for nest building.
5080083 birch bark beetle Scolytus ratzeburgi
5028070 cherry scallop shell moth Rheumaptera prunivorata crown damage
5028071 cherry scallop shell moth Rheumaptera prunivorata crown damage
2184078 cottonwood leaf beetle Chrysomela scripta
2167003 balsam woolly adelgid Adelges piceae Gout on Fraser fir
2167005 balsam woolly adelgid Adelges piceae gout on Fraser fir
2167008 balsam woolly adelgid Adelges piceae Gout on Fraser fir
5171039 white pine weevil Pissodes strobi
1479018 yellowheaded spruce sawfly Pikonema alaskensis Characteristic feeding damage on a young open-grown white spruce. Photo taken near Park Rapids, Minnesota.
5147089 emerald ash borer Agrilus planipennis demage resulting from woodpeckers searching for a meal on an infested tree
5147080 citrus longhorned beetle Anoplophora chinensis damage in trunk of bonzai maple
3036098 conifer sawflies Neodiprion spp. Dieback from introduced pine sawfly
1231269 oak borer Agrilus angustulus
3227049 pales weevil Hylobius pales to pine seedling
1319024 fire ant Solenopsis geminata Unable to escape vicious fire ant stings, hatching alligators are especially vulnerable to attack.
1319027 fire ant Solenopsis geminata In less than 10 seconds, an unwary scientist was stung over 250 times on one leg when he carelessly knelt on a collapsed fire ant mound. The sterile pustules developed to this stage in 3 days.
5110043 emerald ash borer Agrilus planipennis In the foreground is a stump that was killed by emerald ash borer
5110044 emerald ash borer Agrilus planipennis thin crown
5109079 coconut scale Aspidiotus destructor in quarantine
5022048 emerald ash borer Agrilus planipennis 2004
5022050 emerald ash borer Agrilus planipennis
5083002 grape phylloxera Daktulosphaira vitifoliae old galls in grape leaves. Photo taken October 11, 2006 along Erie Canal, New York
5083074 leafcurl ash aphid Meliarhizophagus fraxinifolii Clumped leaves at terminals produced by earlier aphid injury are visible during leaf drop in fall.
5082085 mountain pine beetle Dendroctonus ponderosae pitch out that successfully killed adult attempting to tunnel
5020027 gypsy moth Lymantria dispar Fruit tree defoliation
5020031 gypsy moth Lymantria dispar
5019007 periodical cicada Magicicada spp.
5016094 Asian longhorned beetle Anoplophora glabripennis
5016095 Asian longhorned beetle Anoplophora glabripennis
5016096 Asian longhorned beetle Anoplophora glabripennis
5016098 Asian longhorned beetle Anoplophora glabripennis exit hole
5016099 Asian longhorned beetle Anoplophora glabripennis dieback
5017002 Asian longhorned beetle Anoplophora glabripennis
5017003 Asian longhorned beetle Anoplophora glabripennis
5018059 eastern spruce gall adelgid Adelges abietis
5018060 cooley spruce gall adelgid Adelges cooleyi
5018061 cooley spruce gall adelgid Adelges cooleyi
5017100 white pine weevil Pissodes strobi
5061006 twolined chestnut borer Agrilus bilineatus
5042031 twolined chestnut borer Agrilus bilineatus
5077076 whiteflies Symptom is white or silver coloring on leaves. Usually covers the entire leaf. Caused by whitefly feeding.
5046015 red oak borer Enaphalodes rufulus
5054079 jack pine budworm Choristoneura pinus pinus mortality
5016050 emerald ash borer Agrilus planipennis
5016053 emerald ash borer Agrilus planipennis Bark fissure, revealing galleries
5037066 long-horned beetles Xylotrechus spp.
5025055 red oak borer Enaphalodes rufulus Red oak borer emergence holes on a northern red oak, Quercus rubra L., in the Ozark National Forest, Arkansas
2181078 basswood leafminer Baliosus nervosa
2181049 basswood leafminer Baliosus nervosa
2181051 basswood leafminer Baliosus nervosa
2182029 Saratoga spittlebug Aphrophora saratogensis
2182030 Saratoga spittlebug Aphrophora saratogensis
2181088 black pineleaf scale Dynaspidiotus californica
2184070 larch casebearer Coleophora laricella
2182014 pine bark adelgid Pineus strobi
2182015 pine bark adelgid Pineus strobi
2181085 balsam woolly adelgid Adelges piceae
2185042 northern pitch twig moth Retinia albicapitana pitch ball removed
2185043 northern pitch twig moth Retinia albicapitana
2185046 northern pitch twig moth Retinia albicapitana
2181061 arborvitae leafminer Argyresthia thuiella
2184087 larch sawfly Pristiphora erichsonii
2181054 May-June beetles Phyllophaga spp.
2185029 red pine cone borer Eucosma monitorana
2185007 European pine sawfly Neodiprion sertifer
2181069 palmerworm Dichomeris ligulella
2181100 European elm scale Gossyparia spuria
2181062 aspen leafminer Phyllocnistis populiella
2182038 white pine weevil Pissodes strobi
2179052 mountain pine beetle Dendroctonus ponderosae 2003
2179053 mountain pine beetle Dendroctonus ponderosae
5038045 emerald ash borer Agrilus planipennis mortality
5038047 emerald ash borer Agrilus planipennis crown dieback
5024010 cactus longhorn beetles Moneilema spp. Frass produced by larval tunneling.
5024087 walnut twig beetle Pityophthorus juglandis Late summer wilting associated with twig beetle and general decline in late summer.
5024013 locust borer Megacyllene robiniae trunk of heavily infested tree
2141041 spruce beetle Dendroctonus rufipennis pitch tube
2141043 spruce beetle Dendroctonus rufipennis pitch tubes
2140083 pinyon ips Ips confusus
3225008 black turpentine beetle Dendroctonus terebrans pitch tubes on mechanically damaged tree
5005042 black turpentine beetle Dendroctonus terebrans Joe Pase inspecting an infested pine
5005010 Ips engraver beetles Ips spp. Green crowned pine with Ips infested bark slipping
5005017 Ips engraver beetles Ips spp.
5005019 Ips engraver beetles Ips spp.
5005020 Ips engraver beetles Ips spp.
2200067 raspberry horntail Hartigia cressonii Cane wilting at tip from larval stem tunneling
2112040 larch casebearer Coleophora laricella damage to needles; 1996
2113071 tent caterpillar Eriogaster lanestris total defoliation of crown with caterpillars' tents
2113009 spruce webworm Cephalcia abietis "damage symptoms; beginning of September, 1997"
2113023 European web-spinning larch sawfly Cephalcia lariciphila total defoliation of larches; June 2000
2113015 webspinning sawfly Cephalcia arvensis late feeding symptoms on a twig; 1998
2112066 European spruce bud moth Zeiraphera ratzeburgiana an infested shoot with caterpillar and early symptoms of its feeding; June 1998
2112067 European spruce bud moth Zeiraphera ratzeburgiana feeding injury to shoots; June 1998
2112068 European spruce bud moth Zeiraphera ratzeburgiana early feeding symptoms on shoots; June 1998
2112069 larch bud moth Zeiraphera griseana feeding damage on shoot; July 1998
2113057 larch bud moth Zeiraphera griseana feeding damage on shoots
2112043 common cockchafer Melolontha melolontha stunted growth of a Scots pine plant infested by grubs which feed roots
2112055 ermine moth Argyresthia laevigatella damage to twigs; May 1999
2112060 juniper ermine moth Argyresthia trifasciata damage to twigs
2112075 browntail moth Euproctis chrysorrhoea total defoliation of a tree; 1994
2112008 shoot beetles Tomicus spp. maturation feeding
2112014 European spruce bark beetle Ips typographus trees with debarked stems after heavy infestation (crowns are still green); September 1996
2112015 European spruce bark beetle Ips typographus base of stem debarked after heavy infestation (crown is still green); September 1996
2112025 northern bark beetle Ips duplicatus infested tree; August 2003
2112029 European oak bark beetle Scolytus intricatus an oak killed by Scolytus intricatus and other borers; fall 1999
2111060 European spruce bark beetle Ips typographus trees with debarked stems after heavy infestation while the crowns are still green; September 1996
2111061 European spruce bark beetle Ips typographus a tree with the debarked stem after heavy infestation while the crown is still green; September 1996
2111044 steelblue jewel beetle Phaenops cyanea lower part of the stem debarked after the infestation; the crown is still green; end of February, 1996
0758159 western spruce budworm Choristoneura freemani Defoliation of new shoots
0758082 beech scale Cryptococcus fagisuga Bark of American beech with symptoms of beech bark disease.
2200020 papaya mealybug Paracoccus marginatus
2168094 mossyrose gall wasp Diplolepis rosae
2168007 gypsy moth Lymantria dispar June 2006
4554061 tent caterpillar Eriogaster lanestris
2166052 Sirex woodwasp Sirex noctilio close-up of resin beads; characteristic of attack
1416046 toadflax seed weevil Rhinusa antirrhini Swollen yellow toadflax seed capsules
0718024 pitch mass borer Synanthedon pini
2145087 spittlebugs or froghoppers
2147077 spittlebugs or froghoppers
1468310 sugar pine tortrix Choristoneura lambertiana top killed
1468320 western pineshoot borer Eucosma sonomana
1468350 European pine shoot moth Rhyacionia buoliana
2105033 six-spined engraver beetle Ips sexdentatus Brick-red sawdust deposition down of an attacked pine, Karst region, Slovenia, June 2000
1468191 larger boxelder leafroller Archips negundana
1468163 aspen leafminer Phyllocnistis populiella June 9, 1970
1468250 larch casebearer Coleophora laricella
1470150 spruce beetle Dendroctonus rufipennis July 1993
1470035 poplar borer Saperda calcarata Emergence hole
1470019 poplar gall borer Saperda inornata
1231050 metalic wood-boring beetle Coraebus fasciatus
1231051 metalic wood-boring beetle Coraebus fasciatus
1231052 metalic wood-boring beetle Coraebus fasciatus
1457016 emerald ash borer Agrilus planipennis Emerald ash borer infested ash trees along a street in Novi, MI. Photo taken in August 2002.
2103030 Acantholyda sawflies Acantholyda spp. Nursery Kostanjevica na Krki, Slovenia, June 2004
1416041 stem-boring weevil Mecinus janthinus
1238068 carpenter ants Camponotus spp. SC
3225074 eastern hemlock looper Lambdina fiscellaria fiscellaria aerial view
3227026 mountain pine beetle Dendroctonus ponderosae pitch tubes - Baker, OR
2108029 southern pine beetle Dendroctonus frontalis Stage 1 - soft pitch tubes in the bark crevices and with the wood surface having a white color (without bark beetle galleries). Olancho Region, Honduras
0284019 southern pine beetle Dendroctonus frontalis close up of a tree showing pitch tubes and adult emergence holes
0284033 black turpentine beetle Dendroctonus terebrans pitch tubes
1398187 carpenter ants Camponotus spp.
1393027 Sirex woodwasp Sirex noctilio 80-90% tree mortality in a 15-year old plantation from a sirex outbreak. South Australia - November 1989
1455166 southwestern tent caterpillar Malacosoma incurvum
2110018 redbay ambrosia beetle Xyleborus glabratus frass tubes; Photo taken in Liberty County, Georgia.
1678044 Douglas-fir beetle Dendroctonus pseudotsugae sampling of fir beetle in wind throw, Washington
2101077 six-spined engraver beetle Ips sexdentatus recently dead tree, debarked but still with green needles
2101049 beech scale Cryptococcus fagisuga white, waxy wool on the trunk
2102093 pear leaf blister moth Leucoptera malifoliella
0907049 maple trumpet skeletonizer Catastega aceriella trumpetlike tubes of frass and silk constructed-close-up of trumpet construction
1396013 spruce budworm Choristoneura fumiferana defoliation
1396071 carpenter ants Camponotus spp.
1396088 post oak grasshopper Dendrotettix quercus
1396091 pine bark adelgid Pineus strobi
1393001 Asian longhorned beetle Anoplophora glabripennis oviposition niche. Ravenswood infestation - Chicago - Aug 1998
1393004 Asian longhorned beetle Anoplophora glabripennis Ravenswood infestation - Chicago - Oct 1998
1398035 carpenter ants Camponotus spp. Holes from pileated woodpeckers preying on ants.
1394085 southern pine beetle Dendroctonus frontalis damage from woodpeckers preying on beetles. Delmarva peninsula
1393043 banded elm bark beetle Scolytus schevyrewi
1199033 white pine weevil Pissodes strobi Board showing old weevil damage
1248024 fir engraver Scolytus ventralis Top Kill in white fir, eastern slope of the Wet Mountains, CO
1248017 mountain pine beetle Dendroctonus ponderosae Aerial view of a multiple tree spot on road to Rollins Pass near Rollinsville, CO
1248021 mountain pine beetle Dendroctonus ponderosae Aerial view of heavy mortality near Antero Jct, South Park, CO
2511064 bollworm Helicoverpa zea Damage to whorl
2511029 armyworms Spodoptera spp. Damage to stalk
1300011 viburnum leaf beetle Pyrrhalta viburni Larvae on undersurface of leaf of Viburnum; note feeding damage
0176100 banana moth Opogona sacchari Damaged Dracaena with external frass deposits of Opogona sacchari.
1248038 blue spruce engraver Ips hunteri Top kill caused by a spruce engraver beetle, Ips hunteri, Fort Collins, CO
1248034 pinyon ips Ips confusus
1247140 bagworm Thyridopteryx ephemeraeformis Bags.
1247011 elm leaf beetle Xanthogaleruca luteola Putnam County, GA.
1244014 giant conifer aphids Cinara spp. Reserva Natural Yerba Loca, Region Metropolitana, Chile.
1361017 southern pine coneworm Dioryctria amatella Pitch tube
1361025 whitefringed beetles Naupactus spp. Bark removed from the taproot
1349013 Sirex woodwasp Sirex noctilio Showing larvae
1349006 Sirex woodwasp Sirex noctilio
1349004 Sirex woodwasp Sirex noctilio
1296128 Tischerid moth Tischeria decidua
1296129 Tischerid moth Tischeria decidua Mine
1296126 Tischerid moth Tischeria dodonea Mine
1296127 Tischerid moth Tischeria dodonea Mine
1296136 common sawfly Profenusa pygmaea
1296137 common sawfly Profenusa pygmaea Mines with larvae
1296138 common sawfly Profenusa pygmaea Mine with larva
1296143 common sawfly Pseudodineura fuscula
1296060 leaf blotch miner moth Micrurapteryx kollariella
1296009 leaf blotch miner moths Caloptilia spp.
1296066 leaf blotch miner moth Phyllonorycter maestingella
1296038 leaf blotch miner moth Phyllonorycter millierella
1296119 leaf blotch miner moth Phyllonorycter roboris
1296120 leaf blotch miner moth Phyllonorycter roboris
1296024 Choreutid moth Millieria dolosana
1296025 Choreutid moth Millieria dolosana
1296063 beech weevil Orchestes fagi
1338003 azalea caterpillar Datana major Tift County, GA
1296205 metalic wood-boring beetle Trachys minutus Hungary
1259126 nun moth Lymantria monacha
1258221 bark beetle Cryphalus asperatus Larval feeding patch
1258089 European spruce bark beetle Ips typographus Boring dust on bark
1258082 steelblue jewel beetle Phaenops cyanea Pitch running out of bark above larval gallery
1258178 larch longicorn beetle Tetropium gabrieli Entrance hole of larva into pupal chambers
1258220 small white-marmorated long-horned beetle Monochamus sutor Entrance and exit holes (larger)
1258152 violet tanbark beetle Callidium violaceum
1258093 timberman Acanthocinus aedilis Exit holes in bark
1258264 thrips Thrips pini To larch shoot
1258265 thrips Thrips pini View of older damaged tips
1258074 Siricid woodwasp Urocerus augur Infested fir trees removed from stand
1258101 Sirex woodwasp Sirex noctilio Exit holes
1258056 great spruce bark beetle Dendroctonus micans Feeding damage under spruce bark
1258057 great spruce bark beetle Dendroctonus micans Pitch tube on spruce
1258260 Norway spruce weevil Pissodes harcyniae
1258118 small fir bark beetle Cryphalus piceae Exit holes
1627082 dogwood borer Synanthedon scitula
1627009 cutworms, loopers, owlet moths, and underwings
1626059 fourlined plant bug Poecilocapsus lineatus Small circles of dead leaf tissue indicate the presence of four line plant bugs.
1626055 boxwood psyllid Cacopsylla buxi The familiar result of an infestation is stunted twigs and cupped leaves.
1626006 aphids Aphid feeding often causes leaves to curl and become deformed. Once this happens, control is very difficult because aphids inside the curled leaves are protected from contact with the insecticide.
1254056 cooley spruce gall adelgid Adelges cooleyi Fort Collins, CO.
1254034 western tent caterpillar Malacosoma californicum Tent and defoliation on quaking aspen, Roosevelt NF, CO.
1254035 conifer sawflies Neodiprion spp. Defoliation, Ochoco NF, OR.
1254039 brownheaded ash sawfly Tomostethus multicinctus Boulder, CO.
1254010 blue spruce engraver Ips hunteri Fading spruces due to Blue spruce engraver beetle attack, Timnath, CO.
1254011 blue spruce engraver Ips hunteri Pitch tubes and boring dust on bark surface, Timnath, CO.
1254004 mountain pine beetle Dendroctonus ponderosae Fading pines indicative of beetle attack, Red Feather Lakes, CO.
1254007 Douglas-fir beetle Dendroctonus pseudotsugae Fading Douglas-fir, Roosevelt, NF, CO
1254030 Douglas-fir tussock moth Orgyia pseudotsugata Heavy defoliation of grand fir and Douglas fir, Wallowa Whitman NF, OR.
2500002 fir engraver Scolytus ventralis Rio Grande NF, CO.
2500003 pinyon ips Ips confusus Pitch tubes and boring dust on the bark surface of pinyon pine.
1254009 pine engraver Ips pini Top kill in ponderosa pine, Warm Springs IR, OR
1312007 red turpentine beetle Dendroctonus valens Pitch tubes on fire-scorched ponderosa pine.
1307018 pineapple mealybug Dysmicoccus brevipes Group of young Casuarina equisetifolia killed by root infestation of Dysmicoccus brevipes, north of Mombasa, Kenya.
1301043 emerald ash borer Agrilus planipennis Epicormic branches on ash developing after attack.
1249003 emerald ash borer Agrilus planipennis infested firewood
1241701 cone worms Dioryctria spp. Webbed clump of frass and cone discoloration indicating coneworm infestation.
1241736 cone worms Dioryctria spp. Pitch mass under a branch node.
1241624 conifer sawflies Neodiprion spp.
1241630 pinyon needle scale Matsucoccus acalyptus Pinon foliage with larvae of pinon leaf scale.
1241632 pinyon needle scale Matsucoccus acalyptus Foliage loss and discoloration due to pinon leaf scale.
1241705 lodgepole cone beetle Conophthorus ponderosae Powdered contents of cone in which cone beetles have developed.
1241571 Douglas-fir needle midge Contarinia pseudotsugae Needles infested with Douglas-fir needle midge have swellings or galls which are discolored yellow.
1241572 Douglas-fir needle midge Contarinia pseudotsugae Needles infested with Douglas-fir needle midge have swellings or galls which are discolored yellow or red.
1241449 red turpentine beetle Dendroctonus valens Large pitch tubes showing attack sites. Attacks are usually confined to lower 3 feet of bole.
1241453 western pine beetle Dendroctonus brevicomis Pines with bark flaked away by woodpeckers searching for larvae.
1257004 Asian longhorned beetle Anoplophora glabripennis removal of dead trees
1300003 viburnum leaf beetle Pyrrhalta viburni Dead and dying viburnum shrubs due to larval feeding damage
1300006 viburnum leaf beetle Pyrrhalta viburni Ornamental Viburnum shrub damaged by viburnum leaf beetle
1326017 apple flea beetle Altica foliaceae Severe damage on Epilobium
1326062 raspberry horntail Hartigia cressonii Wilting symptom of raspberry from larval injury
1326099 columbine leafminer Phytomyza aquilegivora
4213092 emerald ash borer Agrilus planipennis dieback
1325044 honeylocust plant bug Diaphnocoris chlorionis crown thinning produced by feeding injury
1325059 hackberry nipplegall maker Pachypsylla celtidismamma
1325050 hackberry blistergall psyllid Pachypsylla celtidisvesiculum with nymphal skins left after emergence from gall
1325054 hackberry bud gall maker Pachypsylla celtidisgemma
1232002 pine processionary moth Thaumetopoea pityocampa Heavy defoliation and tent of mature larvae
1232008 pine processionary moth Thaumetopoea pityocampa Tent and heavy defoliation on young pine
1232010 pine processionary moth Thaumetopoea pityocampa Heavy defoliation and tents, northern Cyprus
1231243 Ectoedemia liebwerdella Ectoedemia liebwerdella
1231244 Ectoedemia liebwerdella Ectoedemia liebwerdella
1231226 giant wood wasp Urocerus gigas gigas
1231227 giant wood wasp Urocerus gigas gigas
1231229 Sirex woodwasp Sirex noctilio
1231254 dusky clearwing Paranthrene tabaniformis
1231233 Rose shoot sawfly Cladardis elongulata
1231251 spruce bark tortrix moth Cydia pactolana
1231248 birch bell moth Epinotia tetraquetrana
1231177 large brown trunk beetle Hylobius abietis
1231042 metalic wood-boring beetle Lamprodila decipiens
1231264 willow shot-hole midge Rabdophaga saliciperda
1231265 willow shot-hole midge Rabdophaga saliciperda
1231048 steelblue jewel beetle Phaenops cyanea
1231059 oak borer Agrilus angustulus
1231065 furniture beetle Anobium punctatum
1231066 furniture beetle Anobium punctatum
1231067 furniture beetle Anobium punctatum
1231068 furniture beetle Anobium punctatum
1231238 European goat moth Cossus cossus
1231140 redheaded ash borer Neoclytus acuminatus
1231169 long-horned beetle Oberea pupillata
1231114 musk beetle Aromia moschata
1231143 Sakhalin pine sawyer Monochamus saltuarius
1231111 long-horned beetle Purpuricenus kaehleri
1231135 long-horned beetle Isotomus speciosus
1231145 long-horned beetle Herophila tristis
1231147 long-horned beetle Morimus funereus
1231127 long-horned beetle Pyrrhidium sanguineum
1231128 long-horned beetle Pyrrhidium sanguineum
1231130 violet tanbark beetle Callidium violaceum
1231155 poplar borer Saperda carcharias
1231156 poplar borer Saperda carcharias
1231093 long-horned beetle Arhopalus rusticus
1231162 small poplar borer Saperda populnea
1231165 small poplar borer Saperda populnea
1231194 eastern juniper bark beetle Phloeosinus bicolor
1231184 large elm beetle Scolytus scolytus
1231185 large elm beetle Scolytus scolytus
1231180 poplar-and-willow borer Cryptorhynchus lapathi
1231181 poplar-and-willow borer Cryptorhynchus lapathi
3066038 oak phylloxerids Phylloxera spp. leaves curled and deformed on Nuttall oak
1224225 Japanese beetle Popillia japonica on Chinese Chestnut.
1428130 black pine bark beetle Hylastes ater Mortality of regeneration caused by maturation feeding of adults.
1428133 black pine bark beetle Hylastes ater Breeding attack in the root collar of a young pine also infected by a black stain fungus, Leptographium spp. Central Chile
1324073 formosan subterranean termite Coptotermes formosanus Microbiologist Alan Lax examines carton nest material on insulation and framing damaged by the Formosan subterranean termite.
1229018 persimmon psylla Trioza diospyri
1227090 cranberry fruitworm Acrobasis vaccinii
1227081 putnam scale Diaspidiotus ancylus
3943083 chestnut weevil Mecorhis cumulatus Damage to branch containing chestnut burrs by adult feeding.
3948030 pine processionary moth Thaumetopoea pityocampa Pyrennes Mountains
3948058 seed chalcid Megastigmus spp. Exit holes on juniper berries, Ziarat Forest.
3943085 butterflies, moths or skippers Lepidoptera (Order) N/A Frass and webbing on chestnut burr indicative of borer attack.
3943086 butterflies, moths or skippers Lepidoptera (Order) N/A Discoloed chestnut burr indicative of attack by a lepidopterous borer.
3948027 Douglas-fir beetle Dendroctonus pseudotsugae Woman processing log for construction of Buddhist temple. Logs at this site were Douglas-fir imported from the US and were infested with live beetles.
3948028 Douglas-fir beetle Dendroctonus pseudotsugae Examining Douglas-fir beetle logs imported from the US and infested with Douglas fir beetle.
1428111 engraver beetle Ips acuminatus Top kill caused by pine engraver beetle in Pinus sylvestris var. hamata, near Bakuriana.
1428112 engraver beetle Ips acuminatus Top kill in large Pinus sylvestris var. hamata, near Bakuriana.
1428116 engraver beetle Ips acuminatus Top kill of Pinus sylvestris var. hamata, near Bakuriana.
3943011 termites tubes, Green Belt
1428083 white pine weevil Pissodes strobi leader damage at.
3943049 Nantucket pine tip moth Rhyacionia frustrana Attack in pine tip near Puerto Cabezas.
3943008 leucaena psyllid Heteropsylla cubana Heavy damage, Curieuse Island
2912018 pineapple mealybug Dysmicoccus brevipes group tree mortality caused by the root infesting scale insect, Africa
1428106 southwestern tent caterpillar Malacosoma incurvum Tents, southern Utah
1428108 southwestern tent caterpillar Malacosoma incurvum tents and defoliation in southern Utah
1428103 European elm scale Eriococcus spuria on the Colorado State University campus covered with black sooty mold indicative of infestation by European elm scale.
3943016 Oriental scale Aonidiella orientalis Heavy damage
3948006 cypress aphid Cinara cupressivora Damage to a forest plantation.
3948007 cypress aphid Cinara cupressivora
3948011 cypress aphid Cinara cupressivora Damage to mature plantation, Rift Valley Escarpment.
3948012 cypress aphid Cinara cupressivora Feeding damage on indigenous juniper, lower slopes of Mount Kenya.
1428021 sacred fir looper Evita hyalinaria hyalinaria Aerial view of defoliation near San Felipe del Progresso
1428024 sacred fir looper Evita hyalinaria hyalinaria Defoliation of sacred fir near San Felipe del Progresso.
1428025 sacred fir looper Evita hyalinaria hyalinaria Defoliation near San Felipe del Progresso.
1428026 sacred fir looper Evita hyalinaria hyalinaria Defoliation near San Felipe del Progresso.
1428029 sacred fir looper Evita hyalinaria hyalinaria Aerial view of defoliation near San Felipe del Progresso.
1428031 goldenhaired bark beetle Hylurgus ligniperda Heavy attack in fresh logging slash
1441090 western tent caterpillar Malacosoma californicum defoliation to aspen
1441115 aspen leafminer Phyllocnistis populiella
0758154 fir engraver Scolytus ventralis Aerial view of multiple tree spots
0485020 Ips engraver beetles Ips spp. attack on 3-year old Brumby Farm.
1460073 emerald ash borer Agrilus planipennis Dieback on mature tree - enhanced growth low; Beck Rd, Michigan; Sept 24, 2002
1141004 small poplar borer Saperda populnea emergence hole
1141008 poplar borer Saperda carcharias larval frass
1141018 large brown trunk beetle Hylobius abietis to seedling
1141020 large brown trunk beetle Hylobius abietis to seedling
1148012 Colorado potato beetle Leptinotarsa decemlineata
1460035 emerald ash borer Agrilus planipennis Dying tree
1460036 emerald ash borer Agrilus planipennis Tree with suckers below attack
1435154 black pecan aphid Melanocallis caryaefoliae
1435129 azalea lace bug Stephanitis pyrioides Damage is caused by the sucking of the lacebugs. Greatest buildup occurs during late summer. On the deciduous azaleas, it appears to be stippled grayish; but on certain types of evergreen azaleas, it may appear to be coffee colored or bronze.
1439003 emerald ash borer Agrilus planipennis note epicormic branches being formed as crown dies back
0758157 fir engraver Scolytus ventralis Trees attacked by Scolytus ventralis showing variety of attack patterns: top kill, branch attacks and total tree kill.
1433026 six-spined engraver beetle Ips sexdentatus entry hole with resin emission
1433028 six-spined engraver beetle Ips sexdentatus larval sawdust deposition down of an attacked pine
1433024 great spruce bark beetle Dendroctonus micans entry hole
1419472 leafcurl ash aphid Meliarhizophagus fraxinifolii to white ash
3948029 Douglas-fir beetle Dendroctonus pseudotsugae Logs imported from the US for construction of a buddhist temple and infested with Douglas-fir beetle.
1430177 waved sphinx Ceratomia undulosa to ash terminal
1430139 white flannel moth Norape ovina
1430055 spiny oakworm Anisota stigma
1431039 twig girdler Oncideres cingulata Young hickory with girdled stem. Note that this stem has been girdled in two places. The upper segment broke and fell as usual; the lower remained in place and the larva completed development in the attached dead segment.
1431040 twig girdler Oncideres cingulata Young hickory showing typical damage; leader and branches girdled.
2089091 southern pine beetle Dendroctonus frontalis Typical pitch tubes on bark
1204113 periodical cicada Magicicada spp.
4060032 bagworm Thyridopteryx ephemeraeformis
4060077 blackheaded pine sawfly Neodiprion excitans oviposition damage
2253030 mountain pine beetle Dendroctonus ponderosae cross section of trunk showing blue stain
0014285 cone worms Dioryctria spp.
0012019 European pine shoot moth Rhyacionia buoliana mature pine showing a lyra-shaped stem due to attack at juvenile phase
4824041 whitefringed beetles Naupactus spp. Below ground larvae (grub) feeding damage.
1879054 granulate ambrosia beetle Xylosandrus crassiusculus characteristic "toothpick"-like frass
1307015 cypress aphid Cinara cupressivora in Kenya, Africa
4166080 termites in Moshi, Tanzania, Africa
1307068 termites destroying living trees
1307083 termites attacking a live tree in Moshi, Tanzania, Africa
1307087 termites attacking live tree in Moshi, Tanzania, Africa
4178062 pitch twig moth Retinia comstockiana twig gall
3047025 Texas leafcutting ant Atta texana 1:00 PM. See numbers
3047026 Texas leafcutting ant Atta texana 2:00 PM. See numbers 3047025 & 3047027
3047027 Texas leafcutting ant Atta texana 12:00 PM. See numbers 304025 & 3047026
1879050 granulate ambrosia beetle Xylosandrus crassiusculus Gallery inside of small diameter tree
2716114 Ips engraver beetles Ips spp. pitch tube
4212080 snout beetles or weevils pitch encrusted soil
4212054 Zimmerman pine moth Dioryctria zimmermani to stem
4212006 large aspen tortrix Choristoneura conflictana curled leaf and webbing
4212048 horned oak gall Callirhytis cornigera galls
3226066 Cynipid gall wasp gall on stem
4212050 long-horned beetles Saperda spp. galls
4212051 poplar gall borer Saperda inornata broken stem
3226015 snout beetles or weevils note resin masses on side of terminal shoot resulting from adults feeding
3227023 mountain pine beetle Dendroctonus ponderosae panoramic view - Vail, Colorado
3066070 bark beetles
3067070 whitefringed beetles Naupactus spp. on seedling roots
3066072 termites at seedling nursery in Oklahoma (note entrance holes)
3066073 termites at seedling nursery in Oklahoma; roots hollowed out causing mortality
3057052 twig girdler Oncideres cingulata all major stems girdled
3057084 elm borer Saperda tridentata adult emergence hole
3057076 locust borer Megacyllene robiniae and yellow frass at base of tree
3057080 flatheaded appletree borer Chrysobothris femorata sap spot over attack
3066051 rednecked cane borer Agrilus ruficollis infested raspberry canes with typical swellings
3066060 hawthorn agrilus Agrilus crataegi mines on surface of sapwood
3066088 scarabs or scarab beetles and damage to seedlings (taproot chewed off)
3066089 scarabs or scarab beetles larvae damaged seedling on left; healthy on right
3057078 locust twig borer Ecdytolopha insiticiana to stem (note twig swelling and entrance openings)
3066078 baccharis borer Oidaematophorus balanotes long narrow galleries in Baccharis halimifolia L. Baccharis (groundseltree, saltbrush) is a common weed found in the Southern United States on regeneration sites
3066080 baccharis borer Oidaematophorus balanotes exit hole and frass in Baccharis in South Carolina
3056039 peachtree borer Synanthedon exitiosa at the base of young peach tree
3056036 persimmon borer Sannina uroceriformis entrance in stem
3056037 persimmon borer Sannina uroceriformis pupation tubes of frass and silk
3056043 indigobush twig borer Hystricophora taleana in indigobush
3056005 birch cambium miner Phytobia betulivora pith ray flecks in birch lumber
3056006 carpenterworm Prionoxystus robiniae worm holes and stain in oak lumber
3056074 sassafras borer Oberea ruficollis in stems
3056075 sassafras borer Oberea ruficollis galleries in root and stem
3056079 dogwood twig borer Oberea tripunctata series of holes on infested twig
3056070 sumac stem borer Oberea ocellata girdling & oviposition in sumac
3056017 chestnut timberworm Melittomma sericeum wormy chestnut lumber
1929102 gypsy moth Lymantria dispar
3056026 hickory shoot curculio Conotrachelus aratus
4178009 southern pine beetle Dendroctonus frontalis pitch tube with beetle stuck in pitch. Note boring dust below pitch tube.
0284072 oak stem borer Aneflomorpha subpubescens series of holes made in oak seedling
3046015 red oak borer Enaphalodes rufulus
3046044 scarabs or scarab beetles damage to seedling
3046045 scarabs or scarab beetles seedling damage vs. healthy seedling
1879052 granulate ambrosia beetle Xylosandrus crassiusculus Characteristic "toothpick" frass appearance
1879053 granulate ambrosia beetle Xylosandrus crassiusculus Characteristic "toothpick"-like appearance of frass
1879055 granulate ambrosia beetle Xylosandrus crassiusculus Characteristic "toothpick"-like frass
2721029 Ips engraver beetles Ips spp. Pitch tube with dime for size comparison
2252078 mountain pine beetle Dendroctonus ponderosae close-up of pitch tube
2252088 Douglas-fir beetle Dendroctonus pseudotsugae series of entrance holes on tree bole with boring dust visible on bark
2252082 mountain pine beetle Dendroctonus ponderosae pitch tubes on tree trunk
2254051 aphids sooty mold on grand fir
2254038 larger boxelder leafroller Archips negundana defoliation
2254028 western balsam bark beetle Dryocoetes confusus showing red top trees in stand
1678057 white pine weevil Pissodes strobi sitka spruce leader killed by weevil
3056090 western poplar clearwing Paranthrene robiniae damage to birch
0907015 redheaded pine sawfly Neodiprion lecontei red pine defoliated by larvae
4836038 bronze birch borer Agrilus anxius raised welts caused by tunneling
3047033 Asian longhorned beetle Anoplophora glabripennis exit hole damage
3047036 Asian longhorned beetle Anoplophora glabripennis to boards on pallets
0949008 black turpentine beetle Dendroctonus terebrans fan-shaped or D shaped areas under bark; gregarious feeding habit of larvae
3227031 smaller European elm bark beetle Scolytus multistriatus entry/exit hole
0745061 southern pine beetle Dendroctonus frontalis pitch tube and adult
4178050 ambrosia beetle Euplatypus compositus boring damage and associated staining
3225083 larger pine shoot beetle Tomicus piniperda infested tips
1929032 black turpentine beetle Dendroctonus terebrans pitch tube
2721092 pinhole borer Platypus spp. boring dust at the base of a recently killed pine
3056083 poplar twig borer Oberea delongi stem damage
3066085 sugar maple borer Glycobius speciosus scar at attack site
0022091 skeletonweed gall midge Cystiphora schmidti galls containing larvae on stem
1748056 red oak borer Enaphalodes rufulus
1748034 cicadas flagging
1748069 cicadas
1748058 pine tortoise scale Toumeyella parvicornis see also 1748060
1748054 cone worms Dioryctria spp. pitch mass
1748018 bagworm Thyridopteryx ephemeraeformis
1748051 bagworm Thyridopteryx ephemeraeformis
1748052 pine reproduction weevil Cylindrocopturus eatoni feeding
1748062 southern pine beetle Dendroctonus frontalis in urban interface
1748063 southern pine beetle Dendroctonus frontalis pitch tubes
0907017 white pine weevil Pissodes strobi pitch flow is associated with feeding and egg-laying; look for adult near the terminal leader
1669031 book lice, psocids, and trogiids (Order Psocoptera) typical webbing on tree trunk
0805005 spruce beetle Dendroctonus rufipennis frass
0805010 spruce beetle Dendroctonus rufipennis woodpecker activity
0805067 carpenter ants Camponotus spp. damaged timber
1678018 western spruce budworm Choristoneura freemani entrance hole in bud
0907029 bronze birch borer Agrilus anxius tunnels throughout the wood in white birch
0795077 balsam woolly adelgid Adelges piceae "Red holz" or butterscotch wood of an infested tree
0488061 carpenterworm Prionoxystus robiniae typical entrance wound
0590060 eastern tent caterpillar Malacosoma americanum complete defoliation, note tents in crotches of tree
0488034 bagworm Thyridopteryx ephemeraeformis
0795091 eastern pine weevil Pissodes nemorensis chip cocoons on slash pine
0590092 southern pine beetle Dendroctonus frontalis infestation in urban setting
0284020 southern pine beetle Dendroctonus frontalis pitch tubes
0284063 Columbian timber beetle Corthylus columbianus Sap-soaked area around gallery as indicated by dry granualar borings below 2.0mm diameter entrance hole.

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