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Image Subject Name Scientific Name Description
5486528 May-June beetles Phyllophaga spp. white grub feeding damage, removal of fine roots on a red pine seedling.
5486516 May-June beetles Phyllophaga spp. Red pine root damage
5486518 May-June beetles Phyllophaga spp. Dead seedlings growing in dense grass, killed by white grub feeding on root system
5486524 May-June beetles Phyllophaga spp. white grub feeding damage, removal of fine roots on a pine seedling.
5486525 May-June beetles Phyllophaga spp. white grub feeding damage, removal of fine roots on a pine seedling.
5486526 May-June beetles Phyllophaga spp. white grub feeding damage, removal of fine roots on a pine seedling.
5486522 May-June beetles Phyllophaga spp. Seedlings with damaged root systems
5486523 May-June beetles Phyllophaga spp. root feeding on pine seedling
5486517 May-June beetles Phyllophaga spp. red pine seedling root damage
5486527 May-June beetles Phyllophaga spp. white grub feeding damage, removal of fine roots on a red pine seedling.
1593060 snow and ice damage (snow load) snow pull, damage to branches on a young tree.
1593089 pine tip root weevil Hylobius rhizophagus Branch flagging on a root tip weevil infested tree. 
1593000 wind Wind damage in an older red pine plantation, Chequamegon-Nicolet National Forest, WI. 
1593009 wind Wind Damage in an older highd ensity red pine plantation, Chequamegon-Nicolet Nation Forest.
1593027 hail Open wounds caused by an intense hail storm. 
1593016 redheaded pine sawfly Neodiprion lecontei Feeding damage on a red pine sapling
1593036 metalic wood-boring beetless Chalcophora spp. Larvae found in a dead red pine log
1593037 metalic wood-boring beetless Chalcophora spp. Larvae found in a dead red pine
1593079 pine engraver Ips pini boring dust
1593067 Saratoga spittlebug Aphrophora saratogensis Heavily damaged red pine growing in a dense stand of Sweetfern, the nymphal host of the Saratoga spittlebug
1593075 redheaded pine sawfly Neodiprion lecontei
1593076 redheaded pine sawfly Neodiprion lecontei Group of sawfly larvae
1593077 redheaded pine sawfly Neodiprion lecontei
1593078 redheaded pine sawfly Neodiprion lecontei
1593015 Ips engraver beetles Ips spp. Pockets of Ips beetle attacks in a small 30-year-old red pine plantation, Eau Claire Co., WI.  Photo taken during an intense summer drought in July 1998.   
1593035 pine engraver Ips pini Pine engraver mortality showing up as a pocket of recently killed red pine trees. 
1593045 red turpentine beetle Dendroctonus valens Turpentine beetle attack on a fire damaged stem of red pine.
1593059 snow and ice damage (snow load) snow pull caused by heavy wet snow
1593048 pine engraver Ips pini Nuptial chamber, egg eniches and egg gallery. 
5468307 pine gall weevil Podapion gallicola
5468306 pine gall weevil Podapion gallicola
5370013 metalic wood-boring beetles Dicerca spp. Mating pair of adults on the bark of a red pine
0355049 pine needle rusts Coleosporium spp.
1457044 eastern pine seedworm Cydia toreuta Overwintering larva found in a dissected red pine cone. Larvae feed on maturing seed.
1457040 red pine cone beetle Conophthorus resinosae Egg gallery in a red pine cone.
1406139 wind storm damage
4213011 Diplodia tip blight Diplodia pinastri infected understory trees
4212079 bark beetles pocket of red topped trees in young stand
1301053 Diplodia blight Sphaeropsis sapinea Sphaeropsis sapinea branch infections on red pine following a hail storm on a dry site.
1406097 Scleroderris canker of pine and spruce Gremmeniella abietina only red pine trees are damaged
1406099 Scleroderris canker of pine and spruce Gremmeniella abietina Scleroderris moving up red pine
1406052 Sirococcus blight of conifers Sirococcus conigenus
1406072 Lophodermium needle casts Lophodermium spp.
1406053 Sirococcus blight of conifers Sirococcus conigenus
1406026 Diplodia blight Sphaeropsis sapinea
1399051 pine root collar weevil Hylobius radicis
1398118 red pine cone beetle Conophthorus resinosae Bisected cone with an adult female in her egg gallery
1398122 webbing coneworm Dioryctria disclusa Single larva inside of a bisected cone. Larva removes frass and keeps the cavity in the cone clean
1398124 cone midge Resseliella spp. feeding on the inside of cone scale. Grant Co. WI.
1398145 red pine cone borer Eucosma monitorana Pinned adult
1398137 cone midge Resseliella spp. Larvae found beneath the savcle of an infested cone. Grant Co. WI.
1406025 Diplodia blight Sphaeropsis sapinea top rows sprayed with Benomyl, bottom rows not treated
1406001 pine needle rust Coleosporium asterum aecia
1406002 pine needle rust Coleosporium asterum aecia
4213054 Diplodia tip blights Diplodia spp. canker on stem
1400132 Saratoga spittlebug Aphrophora saratogensis Heavy damage to red pine due to saratoga spittlebug feeding. Ottawa National Forest, Michigan.
1406003 pine needle rust Coleosporium asterum aecia
1406007 pine needle rust Coleosporium asterum
1396020 pine spittlebug Aphrophora cribrata
2121086 conifer sawfly Gilpinia frutetorum Photo taken on the Sand Dunes State Forest, Sherburne County, MN 2005
1398136 cone midge Resseliella spp. Two cone midge larvae found beneath the savcle of an infested cone. Grant Co. WI.
1406041 Sirococcus blight of conifers Sirococcus conigenus
1406102 Scleroderris canker of pine and spruce Gremmeniella abietina Oneida County Forest
4212044 Saratoga spittlebug Aphrophora saratogensis deformed tree, old injury
1406038 Sirococcus blight of conifers Sirococcus conigenus
1406021 Diplodia blight Sphaeropsis sapinea
1406006 pine needle rust Coleosporium asterum
1398117 pine webworm Pococera robustella web nest
1398029 red pine shoot moth Dioryctria resinosella
1396169 pocket gophers pocket gopher damage
4212078 bark beetles
1398028 red pine shoot moth Dioryctria resinosella Characteristic pitch tube on a red pine shoot.
1400009 Diplodia blight Sphaeropsis sapinea Following tornado damage, Upper Peninsula, Michigan.
1400012 Diplodia blight Sphaeropsis sapinea Branch death on red pine due to wounding and diplodia blight, following a tornado.
1400010 Diplodia blight Sphaeropsis sapinea Following tornado damage in Upper Peninsula of Michigan. See image 1400011 for cut away view.
1398116 cone midge Resseliella spp. Larvae feeding inside of a red pine cone scale. Grant Co., WI
1198037 Sirococcus blight of conifers Sirococcus conigenus Shoot blight showing the drooping needle symptom sometimes indicative of Sirococcus conigenus infection.
1398167 pine engraver Ips pini Pocket of recently killed older red pine. Superior National Forest, MN
1398121 webbing coneworm Dioryctria disclusa Round entrance hole in a developing red pine cone
1406044 Sirococcus blight of conifers Sirococcus conigenus
1301015 Sirococcus blight of conifers Sirococcus conigenus Siroccocus shoot blight infection on red pine, without the "deerskin droop" symptom.
2121084 conifer sawfly Gilpinia frutetorum Photo taken on the Sand Dunes State Forest, Sherburne County, MN.
1396114 red turpentine beetle Dendroctonus valens in tree struck by lightning.
2121085 conifer sawfly Gilpinia frutetorum Photo taken on the Sand Dunes State Forest, Sherburne County, MN 2005
1470069 European pine shoot moth Rhyacionia buoliana
1457041 red pine cone beetle Conophthorus resinosae Adult female in an egg gallery, developing red pine seed can be seen at the bottom of the image.
1406049 Sirococcus blight of conifers Sirococcus conigenus eastern white pine is resistant
1406024 Diplodia blight Sphaeropsis sapinea
1396058 eastern pine weevil Pissodes nemorensis
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.
1406100 Scleroderris canker of pine and spruce Gremmeniella abietina
4213055 Diplodia tip blights Diplodia spp. dead branches
1394088 Saratoga spittlebug Aphrophora saratogensis Menomonee Indian Reservation
1406039 Sirococcus blight of conifers Sirococcus conigenus
1406079 Scleroderris canker of pine and spruce Gremmeniella abietina lower branches infected with Scleroderris canker
1406096 Scleroderris canker of pine and spruce Gremmeniella abietina
1406182 frost and winter injury (general)
1400011 Diplodia blight Sphaeropsis sapinea Bark cut away from canker (see image 1400010) to show necrosis of cambium due to diplodia blight.
4213009 Diplodia tip blight Diplodia pinastri pitch zone on red pine shoot
1470179 European pine sawfly Neodiprion sertifer
1406101 Scleroderris canker of pine and spruce Gremmeniella abietina
1406098 Scleroderris canker of pine and spruce Gremmeniella abietina
1406004 pine needle rust Coleosporium asterum small trees
1398030 red pine shoot moth Dioryctria resinosella
1406067 Lophodermium needle casts Lophodermium spp.
1406183 frost and winter injury (general) brown needles on south side of tree
1406033 Sirococcus blight of conifers Sirococcus conigenus Superior National Forest
1398232 pine engraver Ips pini Pocket of dead older red pine killed by Ips pini,
1398128 red pine shoot moth Dioryctria resinosella
1199018 red pine cone borer Eucosma monitorana Oval entrance holes on the face of a developing cone.
1406184 frost and winter injury (general) frost damage
1199017 webbing coneworm Dioryctria disclusa
5047032 witches' broom A rare witches' broom in red pine
1406085 Diplodia blight Sphaeropsis sapinea dead trees
1198036 Diplodia blight Sphaeropsis sapinea Hail-initiated shoot blight in large trees.
1406086 Scleroderris canker of pine and spruce Gremmeniella abietina
1198034 Diplodia blight Sphaeropsis sapinea Red pine on dry sandy sites are susceptible to Diplodia shoot blight infection.
1398127 webbing coneworm Dioryctria disclusa Attack site at the base of a red pine cone.
1457036 red pine cone borer Eucosma monitorana Infested cone, small oval entrance holes with fine frass are visible on the face of this cone.
1406087 Scleroderris canker of pine and spruce Gremmeniella abietina
1199025 Scleroderris canker of pine and spruce Gremmeniella abietina Death of lower branches.
1406037 Sirococcus blight of conifers Sirococcus conigenus
1198038 Sirococcus blight of conifers Sirococcus conigenus Severe shoot blight symptoms in red pine on a dry, sandy site.
1199016 pine engraver Ips pini Exit holes
1406065 pine needle cast Lophodermium pinastri 17 Maneb sprays and check bed
1406027 Sirococcus blight of conifers Sirococcus conigenus
1301052 hail Hail wound on red pine. Such wounds may serve as infection courts for Sphaeropsis sapinea.
4212023 jack pine budworm Choristoneura pinus pinus defoliation
4212077 bark beetles showing pocket mortality effect
4212043 Saratoga spittlebug Aphrophora saratogensis flagged shoots
1406042 Sirococcus blight of conifers Sirococcus conigenus Superior National Forest
1406048 Sirococcus blight of conifers Sirococcus conigenus
1301012 Sirococcus blight of conifers Sirococcus conigenus The "deerskin droop" symptom sometimes observed.
1301014 Sirococcus blight of conifers Sirococcus conigenus "Deerskin droop" symptom
1388025 red pine shoot moth Dioryctria resinosella Pitch tube on a shoot infested with a single larva
1301051 Diplodia blight Sphaeropsis sapinea Main stem infection of Sphaeropsis sapinea on red pine. Bark has been peeled back to expose dark discoloration of canker face.
1406043 Sirococcus blight of conifers Sirococcus conigenus
1398227 white pine weevil Pissodes strobi Newly emerged adult white pine weevil and exit holes on a red pine terminal. Red pine attack is rare.
1406088 Scleroderris canker of pine and spruce Gremmeniella abietina red pine plantation
2121099 red pine shoot moth Dioryctria resinosella Infested shoot that has died, characteristic damage in late summer. Photo taken in July 2005
1202019 drainage Drainage ditch in plantation. Upper Peninsula of Michigan
1406077 Scleroderris canker of pine and spruce Gremmeniella abietina
1200006 clearcut Clearcut raked and planted to red pine was in poor hardwoods, July 1973
1406103 Scleroderris canker of pine and spruce Gremmeniella abietina cut in Oneida County Forest. Diameter 7 inches
1301013 Sirococcus blight of conifers Sirococcus conigenus Severe shoot blight symptoms
1406147 rat, vole, mouse
1198033 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms developed a few weeks after a severe hail storm that caused numerous wounds on the branches of these trees.
1198035 Diplodia blight Sphaeropsis sapinea Severe shoot blight symptoms following a hail storm.
1200005 clearcut raked and planted. Nicollet National Forest Type conversion from poor hardwoods, July 1973
5040096 Sirococcus blight of conifers Sirococcus conigenus "Deerskin droop" symptoms of Sirococcus conigenus on red pine
5041054 Diplodia blight Sphaeropsis sapinea Dark staining in a twig affected by Diplodia
5041055 Diplodia blight Sphaeropsis sapinea Dark staining of the wood
5041076 Diplodia blight Sphaeropsis sapinea Severe Diplodia shoot blight episode, following a hailstorm
5041077 Diplodia blight Sphaeropsis sapinea Shoot blight. Several people examining symptoms during a field tour.
5041091 Diplodia blight Sphaeropsis sapinea Setting up a research plot to track impacts of shoot blight.
5041092 Diplodia blight Sphaeropsis sapinea Setting up a research plot
5041093 Diplodia blight Sphaeropsis sapinea Marking trees to track shoot blight impacts
5041094 red pine Pinus resinosa Marking branches to track shoot blight impacts
5041097 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms
5041098 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms
5041099 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms under a red pine shelterwood
5424261 European pine sawfly Neodiprion sertifer Feeding damage to red pine by European pine sawfly, older needles are consumed, new-foliage is not eaten. 
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.
5424257 European pine sawfly Neodiprion sertifer Cluster of larvae
5424258 European pine sawfly Neodiprion sertifer cluster of larvae
5424259 European pine sawfly Neodiprion sertifer Early season defoliation by European pine sawfly on a red pine.  Larvae eat only previous-years needles. 
5424260 European pine sawfly Neodiprion sertifer cluster of larvae
5035072 Sirococcus blight of conifers Sirococcus conigenus Shoot blght sypmtoms in lower crown
5035063 Sirococcus blight of conifers Sirococcus conigenus Sirococcus shoot blight symptoms in the lower crown of pole-sized red pine
5035065 Sirococcus blight of conifers Sirococcus conigenus Sirococcus shoot blight symptoms in pole-sized red pine
5035066 Sirococcus blight of conifers Sirococcus conigenus Sirococcus shoot blight symptoms in pole-sized red pine
5035067 Sirococcus blight of conifers Sirococcus conigenus Shoot blight symptoms in pole-sized red pine
5035068 Sirococcus blight of conifers Sirococcus conigenus Shoot blight symptoms in pole-sized red pine
5035069 Sirococcus blight of conifers Sirococcus conigenus Shoot blight symptoms in pole-sized red pine
5035070 Sirococcus blight of conifers Sirococcus conigenus Shoot blight symptoms in pole-sized red pine
5035071 Sirococcus blight of conifers Sirococcus conigenus Shoot blight symptoms in pole-sized red pine
5252056 pine engraver Ips pini Red pine mortality caused by drought and Ips pini
5252057 pine engraver Ips pini Red pine mortality caused by drought and Ips pini
5050090 Diplodia blight Sphaeropsis sapinea Shoot blight of red pine caused by Diplodia pinea
5050092 Diplodia blight Sphaeropsis sapinea Red pine tagged for a study on shoot blight caused by Diplodia pinea
5050093 Diplodia blight Sphaeropsis sapinea Setting up research plots for shoot blight caused by Diplodia pinea.
5050095 Diplodia blight Sphaeropsis sapinea Red pine stand with red pine regeneration. Such regeneration is at high risk of infection by Diplodia pinea from spores produced in the overstory trees.
5050099 Diplodia blight Sphaeropsis sapinea Young red pine stand affected by Diplodia shoot blight.
5051005 Diplodia blight Sphaeropsis sapinea Hail wound that became infected with Diplodia pinea.
5051006 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in young red pine on a poor site. Shane Weber
5051007 Diplodia blight Sphaeropsis sapinea Red pine stand with advance regeneration infected with Diplodia shoot blight.
5051008 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight in a young red pine plantation on a poor site.
5051009 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms in a young red pine stand on a poor site.
5051011 Diplodia blight Sphaeropsis sapinea Top dieback caused by Diplodia pinea in red pine. Bark has been removed to show the dark staining in the wood caused by Diplodia.
5051012 Diplodia blight Sphaeropsis sapinea Collar rot and mortality in red pine caused by Diplodia.
5051017 Diplodia blight Sphaeropsis sapinea Red pine stand with extensive advance regeneration. Such stands are susceptible to regeneration mortality caused by Diplodia pinea.
5038075 Scleroderris canker of pine and spruce Gremmeniella abietina Green staining of G. abietina under the bark.
5051022 Diplodia blight Sphaeropsis sapinea Shoot blight symptoms on red pine.
5051025 Diplodia blight Sphaeropsis sapinea Setting up Diplodia shoot blight impact plots in a young red pine stand.
5051026 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in overstory red pine.
5051028 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in overstory red pine following a hail storm.
5051029 Diplodia blight Sphaeropsis sapinea Heavy infection of red pine with Diplodia shoot blight on a poor site.
5051030 Diplodia blight Sphaeropsis sapinea Red pine regeneration killed by Diplodia pinea. Infection of advance regeneration occurs from inoculum produced in the overstory.
5051031 Diplodia blight Sphaeropsis sapinea Symptoms of Diplodia shoot blight in young red pine.
5051032 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight in red pine regeneration.
5051033 Diplodia blight Sphaeropsis sapinea Dark staining in wood caused by Diplodia pinea infection.
5051034 Diplodia blight Sphaeropsis sapinea Red pine seed tree regeneration cut with good advance red pine regeneration. Such regeneration is at high risk of infection by Diplodia pinea from spores produced in the overstory trees.
5051037 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in understory red pine. Such regeneration is at high risk of infection by Diplodia pinea from spores produced in the overstory trees.
5051039 Diplodia blight Sphaeropsis sapinea Dark staining in the wood of red pine infected with Diplodia pinea.
5051040 Diplodia blight Sphaeropsis sapinea Removing tops of red pine in a seed tree or sheltewood cut can eliminate infection of advance regeneration from spores produced in the overstory trees.
5051041 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in a red pine stand following a hail storm.
5051042 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight symptoms in a red pine stand following a hail storm.
5051043 Diplodia blight Sphaeropsis sapinea Symptoms of Diplodia shoot blight in young red pine.
5051044 Diplodia blight Sphaeropsis sapinea Tip blight caused by Diplodia pinea.
5051046 Diplodia blight Sphaeropsis sapinea Dark staining in the wood of red pine infected with Diplodia pinea.
5051055 Ips engraver beetles Ips spp. Ips bark beetle attack on red pine severely stressed by drought.
5052068 Scleroderris canker of pine and spruce Gremmeniella abietina European strain of G. abietina symptoms on red pine.
5038076 Scleroderris canker of pine and spruce Gremmeniella abietina Green stain of wood caused by G. abietina
5298034 pileated woodpecker Dryocopus pileatus Piliated woodpecker injury on bole of tree.
5298036 pileated woodpecker Dryocopus pileatus Pileated woodpecker injury.
5298069 decay Tree with wound caused by lightning, and associated woodpecker injury.
5251048 pine engraver Ips pini Opening in a red pine stand following mortality caused by drought and Ips pini.
5029082 weevils Hylobius spp. accompanied by root collar stain (Leptographium sp.) in red pine  
5029083 Leptographium root disease Leptographium spp. Leptographium stain in red pine
5029084 Leptographium root disease Leptographium spp. Leptographium stain and weevil chip cocoon in red pine.
5033078 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight in red pine on poor site.
5033080 Diplodia blight Sphaeropsis sapinea Diplodia shoot blight on red pine on poor site.
5188099 clearcut Clearcut, mature red pine in background
5171007 root lifting, soil heaving, and windthrow A typical mixed sub-boreal stand after the 1999 blowdown in the Boundary Waters Canoe Area Wilderness. This image gives a sense of the fuel loads left in the wake of the storm. This picture was taken in September 2000. Much of this area subsequently burned in the Ham Lake fire of May 2007.
5171008 root lifting, soil heaving, and windthrow A typical mixed sub-boreal stand after the 1999 blowdown in the Boundary Waters Canoe Area Wilderness. This picture was taken in September 2000. Much of this area subsequently burned in the Ham Lake fire of May 2007.
5037091 decay This is a dead red pine, approximately 30' tall. The hazard is from potential kick-back when people dig at the lower part of the bole.
1398123 cone resin midge Asynapta hopkinsi Midge larvae found inside a ddamaged red pine cone
5033079 Diplodia blight Sphaeropsis sapinea
2121087 conifer sawfly Gilpinia frutetorum
5031042 annosum root disease Heterobasidion annosum
5031043 annosum root disease Heterobasidion annosum
5031044 Diplodia blight Sphaeropsis sapinea Heavy mortality in red pine seedlings, caused by spores from infected overstory trees
5031045 snow and ice damage (snow load) Heavy snows can bend branches and cause cracks that allow diseases like Diplodia shoot blight to enter the tree.
5202042 Diplodia tip blights Diplodia spp. diplodia in red pine understory
5202058 red pine shoot moth Dioryctria resinosella dead red pine shoot killed by a tunneling red pine shoot moth caterpillar.
5202059 red pine shoot moth Dioryctria resinosella Pitch tube
5202060 red pine shoot moth Dioryctria resinosella Dead shoots in mid-August; Photo taken in central Wisconsin, Jackson Co., WI
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
5047049 pesticides
5030030 Leptographium root disease Leptographium spp. Dark stain in red pine caused by Leptographium sp.
5030031 Leptographium root disease Leptographium spp. Dark staining in red pine caused by Leptographium sp.
5029037 European pine sawfly Neodiprion sertifer
5029038 European pine sawfly Neodiprion sertifer
5029039 European pine sawfly Neodiprion sertifer
5029040 European pine sawfly Neodiprion sertifer
5029054 frost and winter injury (general)
5029065 Scleroderris canker of pine and spruce Gremmeniella abietina Lower branches on red pine killed by Gremmeniella abietina.
5029066 Scleroderris canker of pine and spruce Gremmeniella abietina
5029079 annosum root disease Heterobasidion annosum "Popcorn" conks of Heterobasidion annosum.
5029080 annosum root disease Heterobasidion annosum "Popcorn" conk of Heterobasidion annosum.
5029081 annosum root disease Heterobasidion annosum "Popcorn" conk of Heterobasidion annosum
5027091 Armillaria root rots Armillaria spp. Armillaria on 40-year-old red pine
5028006 Diplodia tip blights Diplodia spp. Diplodia shoot blight in red pine after a hailstorm.
5028091 veiled polypore Cryptoporus volvatus Sporocarps usually appear only on dead pines. Spores are released through ruptures of the underside of the sporocarp.
5028092 veiled polypore Cryptoporus volvatus Irregular rupturing of the underside of the sporocarp allows spores to be dispersed.
5028093 veiled polypore Cryptoporus volvatus
5028094 veiled polypore Cryptoporus volvatus
5029013 Diplodia blight Sphaeropsis sapinea Main stem infection causing death of top.
5029015 Diplodia blight Sphaeropsis sapinea Heavy infection and shoot mortality in larger trees following a hail storm.
5029016 Diplodia blight Sphaeropsis sapinea Severe shoot blight on a very poor site.
5029018 Diplodia blight Sphaeropsis sapinea Dark discoloration in infected wood of red pine.
1479003 Sirococcus blight of conifers Sirococcus conigenus
1479004 Sirococcus blight of conifers Sirococcus conigenus Needle droop, one of the symptoms that can indicate sirococcus blight on red pine. Photo taken on the Chequamegon National Forest in northern Wisconsin.
1479015 Armillaria root rots Armillaria spp. Dead young red pine killed by armillaria infection. Removing the bark at the base of the tree would reveal white mycelial mats.
1479017 Scleroderris canker of pine and spruce Gremmeniella abietina Classic symptom of lower branch mortality due to the Lake States strain of scleroderris canker. Photo taken in a landscape depression on the Ottawa National Forest, Michigan. Lower branches were below snow line at this site.
1479024 Saratoga spittlebug Aphrophora saratogensis Branch mortality caused by adult Saratoga spittlebug feeding damage on young red pine. Similar damage can be caused by Sirococcus shoot blight. Photo taken on the Ottawa National Forest, Michigan.
1479031 bald eagle Haliaeetus leucocephalus perched atop a red pine
3037022 Diplodia blight Sphaeropsis sapinea Diplodia pinea, red pine Chippewa, asexual stage
3035050 ectomycorrhizae mycorrhizae
4214060 herbicides (general) red pine needle droop
5041053 Diplodia blight Sphaeropsis sapinea
5041078 Diplodia blight Sphaeropsis sapinea
5041080 Diplodia blight Sphaeropsis sapinea shoot blight in overstory
5041081 Diplodia blight Sphaeropsis sapinea shoot blight in overstory
5041082 Diplodia blight Sphaeropsis sapinea shoot blight in windbreak
5041083 Diplodia blight Sphaeropsis sapinea
5041087 Diplodia blight Sphaeropsis sapinea
5042013 thinning (stand) thinned stand
5041095 Diplodia blight Sphaeropsis sapinea
5041096 Diplodia blight Sphaeropsis sapinea
5041059 Diplodia blight Sphaeropsis sapinea canker on main stem
5041074 Diplodia blight Sphaeropsis sapinea severe infection in large tree
5058084 Sirococcus blight of conifers Sirococcus conigenus
5038035 Diplodia blight Sphaeropsis sapinea
5038077 hail
5038078 hail
1470125 Diplodia blight Sphaeropsis sapinea pycnidia on needles; December 1970
1457043 red pine cone borer Eucosma monitorana Infested red pine cone that has been dissected. The cone is packed with frass.
1397079 wind
1406080 rat, vole, mouse mouse damage at base of tree
1406137 tornado tornado damage, Lake Tomahawk
1398135 eastern pine seedworm Cydia toreuta Pinned adult. Moth reared from red pine cone
1400008 tornado Tornado damage. Huron Manistee National Forest. 1997
1406040 Sirococcus blight of conifers Sirococcus conigenus
1406045 Sirococcus blight of conifers Sirococcus conigenus
1406046 Sirococcus blight of conifers Sirococcus conigenus
1399066 pruning (general)
1202015 shelterwood
4212072 wood borers larva, exit hole and frass

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