| 5495196 |
phylloxera |
Phylloxera popularia |
|
| 5488806 |
boxelder bug |
Boisea trivittata |
|
| 5451457 |
ambermarked birch leafminer |
Profenusa thomsoni |
|
| 5464201 |
European mistletoe |
Viscum album |
|
| 5464202 |
European mistletoe |
Viscum album |
|
| 5464203 |
European mistletoe |
Viscum album |
|
| 5476300 |
tree-of-heaven |
Ailanthus altissima |
Tree of heaven covered with kudzu |
| 5471786 |
emerald ash borer |
Agrilus planipennis |
This type of woodpecker activity indicates a heavily infested Ash Tree with Emerald Ash Borer. |
| 5408109 |
leaf mold |
Articularia quercina |
|
| 5444393 |
white planthopper |
Metcalfa pruinosa |
|
| 5444394 |
white planthopper |
Metcalfa pruinosa |
|
| 5444395 |
white planthopper |
Metcalfa pruinosa |
|
| 5445262 |
mealy plum aphid |
Hyalopterus pruni |
|
| 5447463 |
beech scale |
Cryptococcus fagisuga |
|
| 5448389 |
Sycamore maple |
Acer pseudoplatanus |
|
| 5445876 |
giant willow aphid |
Tuberolachnus salignus |
|
| 5445880 |
giant willow aphid |
Tuberolachnus salignus |
|
| 1929094 |
gypsy moth |
Lymantria dispar |
Selective summer defoliation of trees |
| 1929098 |
gypsy moth |
Lymantria dispar |
Extensive summer defoliation |
| 5445325 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445324 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445322 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 5445321 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Colony exposed within curled ash leaf |
| 2652032 |
gypsy moth |
Lymantria dispar |
photo of damage in forested area |
| 1220102 |
willow scale |
Chionaspis salicis |
with scale predator, Chilicorus renipustulatus, on bark surface |
| 5444546 |
winter moth |
Operophtera brumata |
|
| 1468171 |
aspen leafminer |
Phyllocnistis populiella |
August 13, 1969 |
| 5443640 |
kudzu bug |
Megacopta cribraria |
|
| 5443641 |
kudzu bug |
Megacopta cribraria |
|
| 5443642 |
kudzu bug |
Megacopta cribraria |
|
| 5443643 |
kudzu bug |
Megacopta cribraria |
|
| 5443644 |
kudzu bug |
Megacopta cribraria |
|
| 4822053 |
mistletoes |
Phoradendron spp. |
clumps developing in tree crown |
| 4212002 |
forest tent caterpillar |
Malacosoma disstria |
severe defoliation |
| 3226031 |
oak wilt |
Ceratocystis fagacearum |
infection centers - aerial view |
| 2666007 |
yellow pecan aphid |
Monelliopsis pecanis |
|
| 1122019 |
tuliptree scale |
Toumeyella liriodendri |
on magnolia |
| 0795079 |
kermes scales |
Kermes spp. |
|
| 5397671 |
mistletoe |
Viscum album ssp. album |
Populus ×euramericana; habitude; habitat; |
| 5397669 |
mistletoe |
Viscum album ssp. album |
Populus ×euramericana; habitude; habitat; |
| 5397670 |
mistletoe |
Viscum album ssp. album |
Populus ×euramericana; habitude; habitat; |
| 5397506 |
mistletoe |
Viscum album ssp. album |
|
| 5397507 |
mistletoe |
Viscum album ssp. album |
|
| 1398245 |
forest tent caterpillar |
Malacosoma disstria |
|
| 1398246 |
forest tent caterpillar |
Malacosoma disstria |
Aspen defoliation along a lakeshore, northern MN. |
| 1361056 |
oak skeletonizer |
Bucculatrix ainsliella |
This insect was responsible for extensive defoliation over a 300,000 acre area in North Georgia from 1986-1999. |
| 1468136 |
cottonwood leafminers |
Bucculatrix spp. |
|
| 2102015 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5115005 |
striped mealybug |
Ferrisia virgata |
Collector: K.Miller Date of photograph or collection: 5/8/1987 |
| 1541980 |
maple bladdergall mite |
Vasates quadripedes |
|
| 1541981 |
maple bladdergall mite |
Vasates quadripedes |
|
| 1541983 |
maple bladdergall mite |
Vasates quadripedes |
|
| 1541982 |
maple bladdergall mite |
Vasates quadripedes |
|
| 5120040 |
fig scale |
Lepidosaphes conchiformis |
Collector: J.Davidson Date of photograph or collection: 7/20/1979 |
| 5120042 |
fig scale |
Lepidosaphes conchiformis |
Collector: D.R.Miller Date of photograph or collection: 7/20/1979 |
| 5120043 |
fig scale |
Lepidosaphes conchiformis |
Collector: D.R.Miller Date of photograph or collection: 7/20/1979 |
| 5120044 |
fig scale |
Lepidosaphes conchiformis |
Collector: D.R.Miller Date of photograph or collection: 7/20/1979 |
| 1371028 |
beech scale |
Cryptococcus fagisuga |
Banský Studenec, Slovakia |
| 5118032 |
orchid scale |
Conchaspis angraeci |
Collector: D.R. Miller Date of photograph or collection: 03/20/1977 |
| 5123020 |
Japanese maple scale |
Lopholeucaspis japonica |
Collector: J.Davidson Date of photograph or collection: 05/1976 |
| 5115007 |
striped mealybug |
Ferrisia virgata |
Collector: Haig Date of photograph or collection: 9/17/1975 |
| 5114099 |
golden oak scale |
Asterolecanium variolosum |
Collector: S.Dreistat Date of photograph or collection: 02/07/1991 |
| 5114100 |
golden oak scale |
Asterolecanium variolosum |
Collector: S.Dreistat Date of photograph or collection: 02/07/1991 |
| 5124067 |
armored scale |
Crassaspis multipora |
|
| 5124013 |
false pit scales |
Lecanodiaspis spp. |
Collector: Alton Walker Date of photograph or collection: 02/1976 |
| 1540862 |
oak phylloxerids |
Phylloxera spp. |
|
| 1540860 |
oak phylloxerids |
Phylloxera spp. |
|
| 1540861 |
oak phylloxerids |
Phylloxera spp. |
|
| 1199031 |
beech scale |
Cryptococcus fagisuga |
|
| 4912086 |
Cynipid gall wasp |
Neuroterus quercusbaccarum |
|
| 1470195 |
cottony maple scale |
Pulvinaria innumerabilis |
|
| 1441131 |
oystershell scale |
Lepidosaphes ulmi |
|
| 5439017 |
bark lice |
Archipsocus nomas |
|
| 5439060 |
tuliptree scale |
Toumeyella liriodendri |
|
| 5439061 |
tuliptree scale |
Toumeyella liriodendri |
|
| 5439062 |
tuliptree scale |
Toumeyella liriodendri |
|
| 5439046 |
Florida red scale |
Chrysomphalus aonidum |
Ilex cornuta ' needlepoint' |
| 5439047 |
Florida red scale |
Chrysomphalus aonidum |
Ilex cornuta ' needlepoint' |
| 5439048 |
Florida red scale |
Chrysomphalus aonidum |
Ilex cornuta ' needlepoint' |
| 0010120 |
lecanium scales |
Coccus spp. |
Heavy infestation of multiple species over 10 acres |
| 0010123 |
lecanium scales |
Coccus spp. |
Heavy infestation of over 10 acres |
| 1470196 |
tuliptree scale |
Toumeyella liriodendri |
|
| 1419455 |
woolly alder aphid |
Prociphilus tessellatus |
on silver maple |
| 3046049 |
kermes scales |
Kermes spp. |
|
| 2102070 |
obscure scale |
Melanaspis obscura |
|
| 2109072 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
Wooly ash aphids on underside of curled American ash leaf (Frazinus americana). The aphid colony has been largely parasitized by Aphelinus sp. Note the black aphid "mummies." |
| 3056024 |
oak lecanium |
Parthenolecanium quercifex |
|
| 1455197 |
grape mealybug |
Pseudococcus maritimus |
|
| 1293008 |
kermes scales |
Kermes spp. |
Savannah, Georgia (2004). |
| 4912081 |
spittlebug |
Aphrophora salicina |
|
| 1223103 |
twospotted spider mite |
Tetranychus urticae |
|
| 1223058 |
blackmargined aphid |
Monellia caryella |
|
| 1220098 |
willow scale |
Chionaspis salicis |
|
| 1441130 |
oystershell scale |
Lepidosaphes ulmi |
|
| 1220097 |
willow scale |
Chionaspis salicis |
|
| 1626026 |
magnolia scale |
Neolecanium cornuparvum |
The largest scale insect in the United States. |
| 5388320 |
camellia |
Camellia japonica |
White scales cover this forest tree. |
| 5430500 |
European mistletoe |
Viscum album |
This local place with Viscum album is the northernmost natural infestation in Norway of European misteltoe, here on Black cottenwood at University of Life Sciences (UMB). Probably infested by birds around 1989. Mistletoe was the first species to be protected in Norway. This was done by Royal Decree January 13, 1956. The protection was revised in a new Royal Decree of October 29, 1976. |
| 5430501 |
European mistletoe |
Viscum album |
This local place with Viscum album is the northernmost natural infestation in Norway of European misteltoe, here on Black cottenwood at University of Life Sciences (UMB). Probably infested by birds around 1989. Mistletoe was the first species to be protected in Norway. This was done by Royal Decree January 13, 1956. The protection was revised in a new Royal Decree of October 29, 1976. |
| 5430502 |
European mistletoe |
Viscum album |
This local place with Viscum album is the northernmost natural infestation in Norway of European misteltoe, here on Black cottenwood at University of Life Sciences (UMB). Probably infested by birds around 1989. Mistletoe was the first species to be protected in Norway. This was done by Royal Decree January 13, 1956. The protection was revised in a new Royal Decree of October 29, 1976. |
| 5428063 |
fall webworm |
Hyphantria cunea |
|
| 5428064 |
fall webworm |
Hyphantria cunea |
|
| 5428062 |
fall webworm |
Hyphantria cunea |
|
| 5430540 |
Eriophyid mite |
|
|
| 5430353 |
Florida red scale |
Chrysomphalus aonidum |
|
| 5430342 |
Florida red scale |
Chrysomphalus aonidum |
|
| 1669043 |
tuliptree scale |
Toumeyella liriodendri |
on tulip poplar showing adults and crawlers |
| 5430401 |
gloomy scale |
Melanaspis tenebricosa |
|
| 5430541 |
Eriophyid mite |
|
|
| 5430542 |
Eriophyid mite |
|
|
| 5430620 |
cottony cushion scale |
Icerya purchasi |
|
| 5430596 |
magnolia scale |
Neolecanium cornuparvum |
Host: Magnolia |
| 5430597 |
magnolia scale |
Neolecanium cornuparvum |
|
| 5430599 |
magnolia scale |
Neolecanium cornuparvum |
|
| 5430566 |
vein pocket gall |
Macrodiplosis erubescens |
|
| 5430580 |
cottony cushion scale |
Icerya purchasi |
|
| 5432193 |
goldspotted oak borer |
Agrilus coxalis auroguttatus |
Tree mortality in San Diego Co., California from Agrilus auroguttatus infestation |
| 5427671 |
magnolia scale |
Neolecanium cornuparvum |
|
| 5427672 |
magnolia scale |
Neolecanium cornuparvum |
|
| 5427674 |
oak lecanium |
Parthenolecanium quercifex |
|
| 5123002 |
soft scale |
Neopulvinaria innumerabilis |
|
| 5432154 |
willow scale |
Diaspidiotus gigas |
Crawlers of willow scale escaping from female scale |
| 0541069 |
beech scale |
Cryptococcus fagisuga |
|
| 0534069 |
mistletoe |
Loranthus europaeus |
|
| 0534070 |
mistletoe |
Loranthus europaeus |
|
| 5430400 |
gloomy scale |
Melanaspis tenebricosa |
|
| 2652045 |
gypsy moth |
Lymantria dispar |
Defoliated forested area in late spring. |
| 4822041 |
Dutch elm disease |
Ophiostoma ulmi |
trees killed along road |
| 1669044 |
cottony maple scale |
Pulvinaria innumerabilis |
scales on branch |
| 1468271 |
oystershell scale |
Lepidosaphes ulmi |
|
| 1293009 |
lecanium scales |
Coccus spp. |
(2004). |
| 1268016 |
locust leafminer |
Odontota dorsalis |
|
| 1224019 |
black pecan aphid |
Melanocallis caryaefoliae |
and damage |
| 1268015 |
locust leafminer |
Odontota dorsalis |
|
| 1398051 |
beech scale |
Cryptococcus fagisuga |
Trunk covered with scale. Michigan's upper peninsula, 2004. |
| 1398049 |
beech scale |
Cryptococcus fagisuga |
Beech scale covering the bark of a larger American beech. Upper Peninsula of Michigan, 2002 |
| 1394067 |
oak leaftier |
Croesia semipurpurana |
defoliation |
| 1455023 |
locust leafminer |
Odontota dorsalis |
|
| 1929091 |
gypsy moth |
Lymantria dispar |
defoliation in urban area |
| 3057039 |
forest tent caterpillar |
Malacosoma disstria |
defoliation [figure 6B in USDA Forest Service Oak Pests book] |
| 5428738 |
paper-mulberry |
Broussonetia papyrifera |
|
| 5404934 |
tree-of-heaven |
Ailanthus altissima |
|
| 5404936 |
tree-of-heaven |
Ailanthus altissima |
|
| 4825025 |
small ballmoss |
Tillandsia recurvata |
An epiphyte which occurs in ball-like clusters. |
| 1220096 |
willow scale |
Chionaspis salicis |
|
| 1150120 |
giant bark aphid |
Longistigma caryae |
The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002. |
| 2168033 |
gypsy moth |
Lymantria dispar |
June 2006 |
| 1540696 |
European fruit lecanium |
Parthenolecanium corni |
|
| 1118269 |
bottomland hardwoods |
|
|
| 0795032 |
elm spanworm |
Ennomos subsignaria |
aerial view of defoliation of oak |
| 5385943 |
woolly maple aphid |
Neoprociphilus aceris |
on Caddo sugar maple; May 20, 2008 |
| 1476100 |
oak phylloxerids |
Phylloxera spp. |
large colony on aspen |
| 5410976 |
seed bugs |
Oxycarenus lavaterae |
|
| 5410977 |
seed bugs |
Oxycarenus lavaterae |
|
| 5410763 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5410757 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5410758 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5410759 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5410760 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5410762 |
spindle tree rust mite |
Cecidophyes psilonotus |
|
| 5424246 |
Eriophyid mites |
Eriophyes spp. |
Felt-like leaf gall on river birch caused by a eriophyid mite, genus Eriophyes. |
| 5424294 |
katydid |
|
|
| 5053062 |
beech scale |
Cryptococcus fagisuga |
Heavy infestation of Cryptococcus fagisuga scale on American beech |
| 1546105 |
Japanese beetle |
Popillia japonica |
attacking sycamore in a forest nursery |
| 1546145 |
oak treehopper |
Platycotis vittata |
treehoppers on chestnut oak. |
| 1549378 |
spiny witchhazel gall aphid |
Hamamelistes spinosus |
|
| 1543515 |
sycamore lace bug |
Corythucha ciliata |
|
| 1543398 |
boxelder bug |
Boisea trivittata |
|
| 1543389 |
boxelder bug |
Boisea trivittata |
|
| 1543394 |
boxelder bug |
Boisea trivittata |
|
| 5410731 |
maple aphid |
Periphyllus aceris |
|
| 5410732 |
maple aphid |
Periphyllus aceris |
|
| 5410730 |
maple aphid |
Periphyllus aceris |
|
| 1549410 |
woolly alder aphid |
Prociphilus tessellatus |
|
| 1549174 |
giant bark aphid |
Longistigma caryae |
|
| 1549168 |
giant bark aphid |
Longistigma caryae |
|
| 4822066 |
lichen |
Strigula smaragdula |
Green-orange algal spots or "green scruf" on leaf surface. The grayish-white and darker "crusts" are lichens of the genus Strigula resulting from fungal colonization of the alga. Plant host is southern magnolia (Magnolia grandiflora L.). |
| 5048083 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5048065 |
beech scale |
Cryptococcus fagisuga |
Cottony coverings of Cryptococcus fagisuga, the beech scale. |
| 5048075 |
beech bark disease |
Nectria coccinea |
with Cryptococcus fagisuga on the trunk of an American beech. |
| 5048076 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5048079 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5048087 |
beech bark disease |
Nectria coccinea |
Cryptococcus fagisuga on American beech, with tarry spots. |
| 5048095 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5048086 |
beech scale |
Cryptococcus fagisuga |
Beech bark disease. A severe infestation of Cryptococcus fagisuga in Ludington State Park, MI. |
| 5048096 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5048097 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5049001 |
beech scale |
Cryptococcus fagisuga |
Cryptococcus fagisuga on American beech. |
| 5043084 |
sudden oak death |
Phytophthora ramorum |
site of extensive ramorum canker on oak. |
| 5043087 |
sudden oak death |
Phytophthora ramorum |
Sudden oak death (ramorum canker) symptoms on coast live oak |
| 5383032 |
horse chestnut leafminer |
Cameraria ohridella |
|
| 5378265 |
European spruce bark beetle |
Ips typographus |
|
| 5378257 |
European spruce bark beetle |
Ips typographus |
|
| 5378248 |
European spruce bark beetle |
Ips typographus |
|
| 5382144 |
turbinella oak |
Quercus turbinella |
Old mistletoe brooms and current season plant in scrub oak. Photographed July 19.
|
| 5382143 |
Cory's mistletoe |
Phoradendron coryae |
Pair of old mistletoe brooms in scrub oak and old dieback from earlier infestation. Photographed July 19.
|
| 5377864 |
larch casebearer |
Coleophora laricella |
|
| 5377865 |
larch casebearer |
Coleophora laricella |
|
| 5377861 |
larch casebearer |
Coleophora laricella |
|
| 5377863 |
larch casebearer |
Coleophora laricella |
|
| 5377807 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377808 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377809 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377810 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377811 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377805 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5377806 |
woolly beech aphid |
Phyllaphis fagi |
|
| 5382975 |
powdery mildew of oak |
Microsphaera alphitoides |
|
| 5382686 |
chestnut blight or canker |
Cryphonectria parasitica |
|
| 5382693 |
chestnut blight or canker |
Cryphonectria parasitica |
|
| 5382706 |
chestnut blight or canker |
Cryphonectria parasitica |
|
| 5389244 |
tent caterpillar |
Eriogaster lanestris |
|
| 5389254 |
tent caterpillar |
Eriogaster lanestris |
|
| 5389255 |
tent caterpillar |
Eriogaster lanestris |
|
| 5389261 |
tent caterpillar |
Eriogaster lanestris |
|
| 5062059 |
woolly alder aphid |
Prociphilus tessellatus |
|
| 5378070 |
gall midge |
Dryomia circinnans |
|
| 5371238 |
giant willow aphid |
Tuberolachnus salignus |
|
| 5371186 |
soft scale |
Parthenolecanium rufulum |
|
| 5371131 |
Poplar tip moth |
Clostera anastomosis |
|
| 5371132 |
Poplar tip moth |
Clostera anastomosis |
Hybrid poplar defoliated |
| 0758006 |
aphids |
|
Aphid colony on lupine |
| 0758029 |
gypsy moth |
Lymantria dispar |
Defoliation of oaks and other broadleaf trees |
| 0758030 |
gypsy moth |
Lymantria dispar |
Defoliation of oaks and other broadleaf trees |
| 0758031 |
gypsy moth |
Lymantria dispar |
Defoliation of oaks and other broadleaf trees |
| 0758032 |
gypsy moth |
Lymantria dispar |
Defoliation of oaks and other broadleaf trees |
| 0758033 |
gypsy moth |
Lymantria dispar |
Defoliation of oaks and other broadleaf trees |
| 0758034 |
gypsy moth |
Lymantria dispar |
Oak mortality due to repeated defoliation by gypsy moth |
| 0758073 |
oak wilt |
Ceratocystis fagacearum |
Oak killed by oak wilt. |
| 0758114 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of defoliation of water tupelo. |
| 0758115 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of defoliation of water tupelo |
| 0758116 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of defoliation of water tupelo, Note - greenstrips are areas of mixed hardwood forest, a less favored host of this insect. |
| 0758117 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of defoliation |
| 0758118 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of defoliation. |
| 5382505 |
western tent caterpillar |
Malacosoma californicum |
Defoliation of aspen |
| 5379430 |
aphid |
Tuberculatus annulatus |
|
| 5379427 |
aphid |
Tuberculatus annulatus |
|
| 5379428 |
aphid |
Tuberculatus annulatus |
|
| 5379425 |
aphid |
Tuberculatus annulatus |
|
| 5379426 |
aphid |
Tuberculatus annulatus |
|
| 5379423 |
aphid |
Tuberculatus annulatus |
|
| 5378095 |
soft scale |
Parthenolecanium rufulum |
|
| 5378812 |
gypsy moth |
Lymantria dispar |
|
| 5378813 |
gypsy moth |
Lymantria dispar |
|
| 5378808 |
gypsy moth |
Lymantria dispar |
|
| 5378809 |
gypsy moth |
Lymantria dispar |
|
| 5378810 |
gypsy moth |
Lymantria dispar |
|
| 5378811 |
gypsy moth |
Lymantria dispar |
|
| 5378806 |
gypsy moth |
Lymantria dispar |
|
| 5378807 |
gypsy moth |
Lymantria dispar |
|
| 5378077 |
gall midge |
Dryomia circinnans |
|
| 5378754 |
gall midge |
Dryomia circinnans |
|
| 5378755 |
gall midge |
Dryomia circinnans |
|
| 5378756 |
gall midge |
Dryomia circinnans |
|
| 5378075 |
gall midge |
Dryomia circinnans |
|
| 5378076 |
gall midge |
Dryomia circinnans |
|
| 5378752 |
gall midge |
Dryomia circinnans |
|
| 5378753 |
gall midge |
Dryomia circinnans |
|
| 5378751 |
gall midge |
Dryomia circinnans |
|
| 5378748 |
gall midge |
Dryomia circinnans |
|
| 5378749 |
gall midge |
Dryomia circinnans |
|
| 5378750 |
gall midge |
Dryomia circinnans |
|
| 5378746 |
gall midge |
Dryomia circinnans |
|
| 5378747 |
gall midge |
Dryomia circinnans |
|
| 5378745 |
gall midge |
Dryomia circinnans |
|
| 5378072 |
gall midge |
Dryomia circinnans |
|
| 5378073 |
gall midge |
Dryomia circinnans |
|
| 5378074 |
gall midge |
Dryomia circinnans |
|
| 5378740 |
gall midge |
Dryomia circinnans |
|
| 5378741 |
gall midge |
Dryomia circinnans |
|
| 5378737 |
gall midge |
Dryomia circinnans |
|
| 5378447 |
aphid |
Pemphigus spyrothecae |
|
| 5378446 |
aphid |
Pemphigus spyrothecae |
|
| 5378744 |
gall midge |
Dryomia circinnans |
|
| 5378079 |
aphid |
Lachnus roboris |
|
| 5378078 |
aphid |
Lachnus roboris |
Adults and nymphs |
| 5378268 |
European spruce bark beetle |
Ips typographus |
|
| 5378269 |
European spruce bark beetle |
Ips typographus |
|
| 1263044 |
Japanese maple scale |
Lopholeucaspis japonica |
On Zelkova stem. |
| 5369699 |
greenstriped mapleworm |
Dryocampa rubicunda |
|
| 5081030 |
gypsy moth |
Lymantria dispar |
egg masses |
| 5346015 |
fall webworm |
Hyphantria cunea |
Aerial view of defoliation, Larimer Co, CO, August 2007 |
| 5346016 |
fall webworm |
Hyphantria cunea |
Aerial view of defoliation, Larimer Co, CO |
| 5346017 |
fall webworm |
Hyphantria cunea |
Aerial view of defoliation, Larimer Co, CO, August 2007 |
| 5346045 |
western tent caterpillar |
Malacosoma californicum |
Aerial view of defoliation of quaking aspen, Cucharas ski area, Culebra Range, CO, July 2007 |
| 5346046 |
western tent caterpillar |
Malacosoma californicum |
Defoliation of aspen, Culebra Range, San Isabel NF, CO, July 2007 |
| 5346047 |
western tent caterpillar |
Malacosoma californicum |
Defoliation of aspen, Mousca Pass, Sangre de Cristo Range, CO, July 2007 |
| 5346049 |
western tent caterpillar |
Malacosoma californicum |
Defoliation of aspen near Mousca Pass, Sangre de Cristo Range, CO, July 2007 |
| 5346050 |
western tent caterpillar |
Malacosoma californicum |
Aerial view of aspen defoliation, North Purgatory River, San Isabel National Forest, CO, July 2007 |
| 5346051 |
western tent caterpillar |
Malacosoma californicum |
Aerial view of defoliation of aspen, Sange de Cristo Range, Colorado, July 2007. Open swath is a recent avalance chute. |
| 5346052 |
western tent caterpillar |
Malacosoma californicum |
Heavy defoliation of quaking aspen, North Purgatory River, San Isabel National Forest, CO |
| 5369697 |
Japanese maple scale |
Lopholeucaspis japonica |
|
| 5007070 |
melaleuca |
Melaleuca spp. |
April 14, 2005. |
| 1473072 |
Cenangium cankers |
Cenangium spp. |
infected mature stand |
| 5345026 |
tree-of-heaven |
Ailanthus altissima |
|
| 5302016 |
tree-of-heaven |
Ailanthus altissima |
|
| 5302017 |
tree-of-heaven |
Ailanthus altissima |
|
| 5269055 |
Norway maple |
Acer platanoides |
|
| 5276040 |
melaleuca |
Melaleuca quinquenervia |
|
| 1520083 |
hemlock woolly adelgid |
Adelges tsugae |
HWA on hemlock needles |
| 0758226 |
forest tent caterpillar |
Malacosoma disstria |
Aerial view of heavy defoliation |
| 0758228 |
forest tent caterpillar |
Malacosoma disstria |
Color infrared aerial photo of forest tent caterpillar defoliation |
| 0758229 |
forest tent caterpillar |
Malacosoma disstria |
Color infrared aerial photo of forest tent caterpillar defoliation |
| 1509100 |
oak wilt |
Ceratocystis fagacearum |
Oak wilt |
| 1510012 |
forest tent caterpillar |
Malacosoma disstria |
Forest tent caterpillar defoliation |
| 1510013 |
forest tent caterpillar |
Malacosoma disstria |
Forest tent caterpillar defoliation |
| 1510014 |
forest tent caterpillar |
Malacosoma disstria |
Forest tent caterpillar defoliation |
| 1501054 |
oak wilt |
Ceratocystis fagacearum |
Oak wilt center |
| 1501055 |
oak wilt |
Ceratocystis fagacearum |
Oak wilt center, Kerrville State Park |
| 5176036 |
mistletoe |
Misodendrum punctulatum |
Heavy infestation, Parque Nacional Vincente Perez Rosales, X Region, Chile |
| 5176037 |
mistletoe |
Misodendrum punctulatum |
Infested tree, Parque Nacional Vincente Perez Rosales, X Region, Chile |
| 5135035 |
aspen decline |
|
Aerial photo from 2006 survey. Aerial view of aspen decline, South Park, CO |
| 5135036 |
aspen decline |
|
Aerial photo from 2006 survey. Aerial view of aspen decline, South Park, CO |
| 5135037 |
aspen decline |
|
Aerial photo from 2006 survey; Aerial view of aspen decline, South Park, CO |
| 5135034 |
aspen decline |
|
aerial photo from 2006 survey; Aerial view of aspen decline |
| 2167075 |
western tent caterpillar |
Malacosoma californicum |
|
| 5081031 |
gypsy moth |
Lymantria dispar |
egg masses |
| 5177065 |
San Jose scale |
Diaspidiotus perniciosus |
|
| 5171038 |
emerald ash borer |
Agrilus planipennis |
typical damage seen after an infestation |
| 1478031 |
Spanish moss |
Tillandsia usneoides |
|
| 3036033 |
oak wilt |
Ceratocystis fagacearum |
oak wilt at edge of woodland St. Paul, MN |
| 5137067 |
Japanese wax scale |
Ceroplastes japonicus |
|
| 1317089 |
Asian longhorned beetle |
Anoplophora glabripennis |
Infestation in Chicago: before, during, and after cleanup. The only means of control available is to identify which trees are infested, cut them down, and chip them into tiny pieces. Such an approach can turn a tranquil neighborhood with tree-lined streets into a barren landscape |
| 1475042 |
forest tent caterpillar |
Malacosoma disstria |
Mass of larvae on trunk. Lighter colored caterpillars have recently molted. |
| 5021019 |
gypsy moth |
Lymantria dispar |
|
| 5021040 |
bagworm |
Thyridopteryx ephemeraeformis |
|
| 5020084 |
bagworm |
Thyridopteryx ephemeraeformis |
|
| 5020085 |
bagworm |
Thyridopteryx ephemeraeformis |
|
| 5084038 |
reddish brown poplar aphid |
Pterocomma populifoliae |
small colony on poplar twig |
| 5019031 |
beech scale |
Cryptococcus fagisuga |
|
| 5019059 |
fall webworm |
Hyphantria cunea |
|
| 5020036 |
gypsy moth |
Lymantria dispar |
|
| 5020048 |
gypsy moth |
Lymantria dispar |
|
| 5020050 |
gypsy moth |
Lymantria dispar |
|
| 5020051 |
gypsy moth |
Lymantria dispar |
|
| 5018084 |
beech blight aphid |
Grylloprociphilus imbricator |
|
| 5018087 |
woolly alder aphid |
Prociphilus tessellatus |
|
| 5018088 |
woolly alder aphid |
Prociphilus tessellatus |
with ant |
| 5019002 |
periodical cicada |
Magicicada spp. |
|
| 2181094 |
cottony maple scale |
Pulvinaria innumerabilis |
|
| 2182007 |
European fruit lecanium |
Parthenolecanium corni |
|
| 2183085 |
oystershell scale |
Lepidosaphes ulmi |
|
| 2912081 |
gypsy moth |
Lymantria dispar |
|
| 1929084 |
gypsy moth |
Lymantria dispar |
Summer defoliation of hardwoods |
| 1212097 |
white satin moth |
Leucoma salicis |
Elk Flat, Walla Walla RD, Umatilla NF |
| 1212098 |
white satin moth |
Leucoma salicis |
Distant view of forest damaged by satin-moth defoliation; Elk Flat, Walla Walla RD, Umatilla NF |
| 1212099 |
white satin moth |
Leucoma salicis |
Close-up view of stand with defoliation; Elk Flat, Walla Walla RD, Umatilla NF |
| 1269028 |
gypsy moth |
Lymantria dispar |
Infested stand of mixed hardwoods. Switzerland |
| 2111089 |
willow leaf beetle |
Chrysomela vigintipunctata |
defoliated willows; June 1996 |
| 2112044 |
orchard ermine |
Yponomeuta padella |
nests of caterpillars on the stem and herbs in the surroundings; June 2002 |
| 2113045 |
beech scale |
Cryptococcus fagisuga |
infested stem; September 1996 |
| 2113046 |
beech scale |
Cryptococcus fagisuga |
scale bugs with wax cover on stem; September 1996 |
| 2113047 |
beech scale |
Cryptococcus fagisuga |
scale bugs with wax cover on stem; August 1996 |
| 2168024 |
gypsy moth |
Lymantria dispar |
June 2006 |
| 2168030 |
gypsy moth |
Lymantria dispar |
|
| 2168031 |
gypsy moth |
Lymantria dispar |
June 2006 |
| 2168044 |
gypsy moth |
Lymantria dispar |
|
| 2168026 |
gypsy moth |
Lymantria dispar |
|
| 4554047 |
common sawfly |
Tomostethus nigritus |
|
| 1467323 |
mistletoes |
Phoradendron spp. |
|
| 1118270 |
bottomland hardwoods |
|
|
| 1118272 |
bottomland hardwoods |
|
|
| 1118285 |
bottomland hardwoods |
|
Bottomland hardwoods alongside southern pines |
| 3040083 |
gypsy moth |
Lymantria dispar |
|
| 0541027 |
willow leaf beetle |
Chrysomela vigintipunctata |
|
| 1468337 |
Geometrid moth |
Lambdina vitraria |
|
| 1468269 |
bean aphid |
Aphis fabae |
|
| 1468151 |
imported willow leaf beetle |
Plagiodera versicolora |
|
| 1468166 |
aspen leafminer |
Phyllocnistis populiella |
1958 |
| 1468024 |
Marssonina leaf spot |
Marssonina tremulae |
|
| 1468025 |
Marssonina leaf spot |
Marssonina tremulae |
|
| 1470113 |
horned oak gall |
Callirhytis cornigera |
|
| 1419466 |
woolly alder aphid |
Prociphilus tessellatus |
Early attack |
| 1398110 |
Asian longhorned beetle |
Anoplophora glabripennis |
|
| 1396146 |
chestnut blight or canker |
Cryphonectria parasitica |
dead tree, picture taken 1943 |
| 1393007 |
Asian longhorned beetle |
Anoplophora glabripennis |
Street before infested trees were removed. See image#1393008 for picture of street after infested trees were removed. Ravenswood infestation - Chicago - Oct 1998 |
| 1394009 |
forest tent caterpillar |
Malacosoma disstria |
defoliation |
| 1329023 |
willow scale |
Chionaspis salicis |
Roverè Verona Gosse, Italy, May 1987. Adult female scales with crawling neonates (reddish spots). |
| 1244007 |
Red gum lerp |
Glycaspis brimblecombei |
VI Region, Chile |
| 1244008 |
Red gum lerp |
Glycaspis brimblecombei |
VI Region, Chile |
| 1265117 |
calico scale |
Eulecanium cerasorum |
|
| 1626014 |
spider mites |
|
Spider mites are almost microscopic. Most are about the size of a period made by a typewriter. |
| 1626036 |
obscure scale |
Melanaspis obscura |
Primarily found on oaks, this pest causes dieback of branches, limbs, and sometimes entire trees. Inexperienced observers often mistake these scales for flakes of bark even at close range. |
| 1626048 |
whiteflies |
|
Whiteflies often go unnoticed even when they occur in large numbers, because they congregate on the underside of the leaves. When the leaves are disturbed, the adults fly about, but they quickly settle again when the disturbance has passed. |
| 1626053 |
psyllids |
|
Some species are serious pests, but many are simply nuisances because the honeydew they produce leads to unsightly crusts of black sooty mold. |
| 2500019 |
mistletoe |
Psittacanthus calyculatus |
Large plant with many flowers in crown of an oak, near Lago Patzuaro, Michoacan, Mexico. |
| 1254050 |
oystershell scale |
Lepidosaphes ulmi |
Fort Collins, CO. |
| 1254051 |
European elm scale |
Eriococcus spuria |
Fort Collins, CO. |
| 1254054 |
mealybugs |
|
Fort Collins, CO. |
| 1254055 |
mealybugs |
|
Infestation on bark, Fort Collins, CO. |
| 1307019 |
pineapple mealybug |
Dysmicoccus brevipes |
Close-up of scales on root of Casuarina. |
| 1238024 |
English ivy |
Hedera helix |
English ivy covering a large oak. Laurens, SC. |
| 1238025 |
English ivy |
Hedera helix |
|
| 1238047 |
mistletoes |
Phoradendron spp. |
Summer photo (compare to winter photo image # 1238048). Greenville, SC |
| 1238048 |
mistletoes |
Phoradendron spp. |
Winter photo (compare to summer photo image # 1238047). Greenville, SC |
| 1326234 |
giant willow aphid |
Tuberolachnus salignus |
Colony on Willow stem. |
| 2308054 |
tree-of-heaven |
Ailanthus altissima |
Infestation along roadside |
| 1325081 |
oystershell scale |
Lepidosaphes ulmi |
Crawlers present after egg hatch |
| 1325093 |
oystershell scale |
Lepidosaphes ulmi |
of aspen |
| 1325019 |
twospotted spider mite |
Tetranychus urticae |
|
| 1325067 |
currant aphid |
Cryptomyzus ribis |
|
| 1223104 |
twospotted spider mite |
Tetranychus urticae |
|
| 1220099 |
willow scale |
Chionaspis salicis |
|
| 3948090 |
leucaena psyllid |
Heteropsylla cubana |
Infestation on leucaena shoot. |
| 3948091 |
leucaena psyllid |
Heteropsylla cubana |
Infestation on leucaena shoot. |
| 3948098 |
Oriental scale |
Aonidiella orientalis |
on foliage |
| 3948099 |
Oriental scale |
Aonidiella orientalis |
Infestation on shoot |
| 3943002 |
mistletoe |
Tapinanthus globiferus |
|
| 3943009 |
leucaena psyllid |
Heteropsylla cubana |
La Digue Island |
| 3943014 |
armored scale |
Parlatoria crypta |
on branch |
| 3943017 |
striped mealybug |
Ferrisia virgata |
|
| 3943042 |
pineapple mealybug |
Dysmicoccus brevipes |
Group on young Casuarina seedlings killed by root scale infestation near Malindi. |
| 3943043 |
pineapple mealybug |
Dysmicoccus brevipes |
Colony of scales on root system of Casuarina, near Malindi. |
| 1428102 |
European elm scale |
Eriococcus spuria |
|
| 1428105 |
purple erineum maple mite |
Eriophyes calcercis |
|
| 1428113 |
European mistletoe |
Viscum album |
Infestation on Pyrus caucasica near Tetriskaro. |
| 1428114 |
European mistletoe |
Viscum album |
Heavy infestation on Pyrus caucasica near Tetriskaro. |
| 1122002 |
calico scale |
Eulecanium cerasorum |
|
| 1122003 |
calico scale |
Eulecanium cerasorum |
|
| 1122005 |
calico scale |
Eulecanium cerasorum |
|
| 1122020 |
tuliptree scale |
Toumeyella liriodendri |
on magnolia |
| 1122021 |
white peach scale |
Pseudaulacaspis pentagona |
|
| 1122023 |
white peach scale |
Pseudaulacaspis pentagona |
|
| 1122024 |
white peach scale |
Pseudaulacaspis pentagona |
male scales on bark |
| 1428101 |
oystershell scale |
Lepidosaphes ulmi |
|
| 3413087 |
yellow pecan aphid |
Monelliopsis pecanis |
|
| 1150012 |
forest tent caterpillar |
Malacosoma disstria |
aerial view of damage |
| 1150084 |
forest tent caterpillar |
Malacosoma disstria |
The forest tent caterpillar occurs throughout the eastern United States and is a defoliator of a wide variety of hardwood trees. This is the tent caterpillar that does not make a tent! There is one generation per year and the insect overwinters in the egg stage. An unusual outbreak of the forest tent caterpillar occurred in East Texas in the spring of 2002 where some 125,000 acres of bottomland mixed hardwood forest were moderately defoliated. Because they do not defoliate all the trees in mixed deciduous stands, light defoliation may be difficult to see from the air. Moderate defoliation shows up from the air as a gray-green color. |
| 1150088 |
forest tent caterpillar |
Malacosoma disstria |
The larvae feed on sweetgum, tupelo gum, black gum, and various species of oak. |
| 1150115 |
giant bark aphid |
Longistigma caryae |
The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002. |
| 1150117 |
giant bark aphid |
Longistigma caryae |
The giant bark aphid is the largest aphid in North America. During December 2001 and through most of March 2002, an outbreak of this aphid was found covering about the eastern quarter of Texas. They mainly attacked oak trees, especially live oak and water oak. Natural enemies, such as lady beetles, played an important role in controlling aphid populations. During winter months when temperatures are cold, predator and parasite insects are not very active, and this may be the reason aphid populations became so large early in 2002. |
| 1419482 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
to White ash |
| 1419485 |
leafcurl ash aphid |
Meliarhizophagus fraxinifolii |
with lady beetle predator |
| 3066031 |
forest tent caterpillar |
Malacosoma disstria |
extensive defoliation - Mobile, Alabama |
| 3046050 |
forest tent caterpillar |
Malacosoma disstria |
aerial view of defoliation in Alabama bottomland |
| 4060048 |
forest tent caterpillar |
Malacosoma disstria |
defoliation in Minnesota |
| 4061085 |
forest tent caterpillar |
Malacosoma disstria |
defoliation at Chappewa National Forest, Minnesota, May 1952 |
| 0014248 |
forest tent caterpillar |
Malacosoma disstria |
defoliation |
| 2721017 |
gypsy moth |
Lymantria dispar |
Helicopter applying Bt insecticide during treatment of infestation near Helen, Georgia USA. |
| 1307013 |
leucaena psyllid |
Heteropsylla cubana |
near Mombasa, Kenya, Africa |
| 2721019 |
gypsy moth |
Lymantria dispar |
View of treatment area to eradicate infestation near Helen, Georgia USA |
| 3067042 |
boxelder bug |
Boisea trivittata |
aggregating in fall |
| 3056023 |
oak pit scale |
Asterolecanium minus |
|
| 3056025 |
oak pit scale |
Asterolecanium minus |
|
| 3047006 |
forest tent caterpillar |
Malacosoma disstria |
defoliation by tree |
| 3046009 |
lecanium scales |
Coccus spp. |
|
| 3046010 |
lecanium scales |
Coccus spp. |
|
| 2253021 |
kermes scales |
Kermes spp. |
|
| 0886004 |
gypsy moth |
Lymantria dispar |
Heavy defoliation by larvae |
| 0886005 |
gypsy moth |
Lymantria dispar |
Extensive defoliation by larvae |
| 0886006 |
gypsy moth |
Lymantria dispar |
Heavy defoliation by larvae |
| 0886007 |
gypsy moth |
Lymantria dispar |
Overstory oak mortality and understory response ensuing defoliation |
| 0886016 |
beech blight aphid |
Grylloprociphilus imbricator |
Sooty mold below |
| 0886017 |
woolly alder aphid |
Prociphilus tessellatus |
|
| 1929092 |
gypsy moth |
Lymantria dispar |
Neighboorhood with defoliated trees in summer |
| 1929090 |
gypsy moth |
Lymantria dispar |
Summer defoliation of trees in urban area |
| 2253050 |
forest tent caterpillar |
Malacosoma disstria |
defoliation of small trees in foreground |
| 4215059 |
oak wilt |
Ceratocystis fagacearum |
mortality center of oak stand |
| 2652031 |
gypsy moth |
Lymantria dispar |
scene of defoliated forest taken in springtime |
| 1748009 |
pine and spruce adelgids |
Pineus spp. |
|
| 1748015 |
aphids |
|
on locust |
| 1748060 |
pine tortoise scale |
Toumeyella parvicornis |
see also 1748058 |
| 0907024 |
oystershell scale |
Lepidosaphes ulmi |
infestations are usually confined to small portions of trees |
| 0907028 |
birch skeletonizer |
Bucculatrix canadensisella |
on white birch
Early instar larvae are legless and feed with leaf tissues. Later instars have fully-functioning legs and feed externally. Note the presence of silken molting webs and pupal case |
| 0907053 |
woolly alder aphid |
Prociphilus tessellatus |
colony, covered with white, waxy strands |
| 0488088 |
oak eriococcin |
Eriococcus quercus |
|
| 0590052 |
dogwood anthracnose |
Discula destructiva |
defoliated trees |
| 0590071 |
tuliptree aphid |
Illinoia liriodendri |
nymphs and adults |
| 0795081 |
tuliptree scale |
Toumeyella liriodendri |
|
