USDA Forest Service - Ogden Archive's Images
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| 240 Images of 96 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1468085 | fir engraver | Scolytus ventralis | |
| 1468076 | pinyon ips | Ips confusus | |
| 1467057 | mountain pine beetle | Dendroctonus ponderosae | ready to emerge |
| 1468099 | spruce beetle | Dendroctonus rufipennis | |
| 1467361 | Elytroderma needle cast of pine | Elytroderma deformans | |
| 1467329 | western dwarf mistletoe | Arceuthobium campylopodum | |
| 1467127 | dwarf mistletoes | Arceuthobium spp. | |
| 1468311 | sugar pine tortrix | Choristoneura lambertiana | |
| 1467232 | wind | Columbus Day storm, 1962; compression crack | |
| 1467326 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467303 | comandra blister rust | Cronartium comandrae | |
| 1467217 | air pollutants | ozone | |
| 1467195 | drought | ||
| 1467231 | wind | Columbus Day storm, 1962; compression crack | |
| 1468249 | larch casebearer | Coleophora laricella | |
| 1468123 | western pineshoot borer | Eucosma sonomana | |
| 1468101 | pandora moth | Coloradia pandora | |
| 1468031 | western false hemlock looper | Nepytia freemani | 1965 |
| 1468385 | spruce beetle | Dendroctonus rufipennis | pitch |
| 1468381 | spruce beetle | Dendroctonus rufipennis | pitch tube |
| 1468383 | spruce beetle | Dendroctonus rufipennis | |
| 1467272 | limb rust | Peridermium filamentosum | |
| 1467040 | Gynosporanium rusts | Gymnosporangium spp. | |
| 1467378 | Medusa needle blight | Davisomycella medusa | |
| 1468090 | poplar borer | Saperda calcarata | bark removed |
| 1468213 | western spruce budworm | Choristoneura freemani | September 1978 |
| 1467073 | foxtail pine | Pinus balfouriana | |
| 1467386 | white pine needlecast | Lophodermella arcuata | |
| 1467381 | Medusa needle blight | Davisomycella medusa | |
| 1467365 | Elytroderma needle cast of pine | Elytroderma deformans | |
| 1467072 | subalpine fir | Abies lasiocarpa | |
| 1467175 | sulfur shelf | Laetiporus sulphureus | older fruiting body |
| 1468370 | pine infesting sawflies | Neodiprion fulviceps | |
| 1468342 | Armillaria root rots | Armillaria spp. | October 1983 |
| 1468321 | white pine weevil | Pissodes strobi | |
| 1468292 | cone borers | Eucosma spp. | stunted terminal |
| 1468288 | white fir needleminer | Epinotia meritana | June 10, 1970 |
| 1468244 | tussock moths | Halysidota spp. | |
| 1468129 | pinyon spindlegall midge | Pinyonia edulicola | |
| 1467410 | bitter rot and anthracnose | Colletotrichum gloeosporioides | Pseudomonas lauracearum, Glomerella cingulata, and Kabatiella phoradendri f. umbellulariae attacking together |
| 1467408 | brown felt blight | Herpotrichia juniperi | |
| 1467266 | western gall rust | Endocronartium harknessii | trunk gall |
| 1467284 | incense cedar broom rust | Gymnosporangium libocedri | |
| 1467165 | Schweinitzii root and butt disease | Phaeolus schweinitzii | rare |
| 1467199 | frost and winter injury (general) | ||
| 1467275 | limb rust | Peridermium filamentosum | aecial stage; note "tounge-like" pustules |
| 1468339 | western pine beetle | Dendroctonus brevicomis | 1967 |
| 1467205 | frost and winter injury (general) | frost crack in mature stump | |
| 1467265 | western gall rust | Endocronartium harknessii | typical galls on young ponderosa pine |
| 1467286 | incense cedar broom rust | Gymnosporangium libocedri | telial stage |
| 1467285 | incense cedar broom rust | Gymnosporangium libocedri | |
| 1467222 | air pollutants | ||
| 1467366 | Elytroderma needle cast of pine | Elytroderma deformans | |
| 1467200 | frost and winter injury (general) | ||
| 1468240 | tussock moths | Halysidota spp. | 1978 |
| 1468285 | white fir needleminer | Epinotia meritana | |
| 1468304 | sugar pine tortrix | Choristoneura lambertiana | |
| 1468312 | sugar pine tortrix | Choristoneura lambertiana | 1967 |
| 1467174 | sulfur shelf | Laetiporus sulphureus | old sporophore |
| 1467108 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467074 | foxtail pine | Pinus balfouriana | |
| 1467003 | comandra blister rust | Cronartium comandrae | canker; July 2, 1965 |
| 1468156 | lodgepole sawfly | Neodiprion burkei | |
| 1467053 | mountain pine beetle | Dendroctonus ponderosae | |
| 1468399 | mountain pine beetle | Dendroctonus ponderosae | |
| 1467237 | hail | ||
| 1467142 | Cenangium limb canker | Cenangium ferruginosum | |
| 1467203 | frost and winter injury (general) | ||
| 1468338 | western pine beetle | Dendroctonus brevicomis | May 1976 |
| 1468333 | Geometrid moth | Lambdina vitraria | August 14, 1969 |
| 1467248 | white pine blister rust | Cronartium ribicola | flagging |
| 1467062 | mountain pine beetle | Dendroctonus ponderosae | |
| 1467296 | comandra blister rust | Cronartium comandrae | constriction canker |
| 1467247 | white pine blister rust | Cronartium ribicola | |
| 1467236 | galls | bacterial gall | |
| 1467298 | comandra blister rust | Cronartium comandrae | |
| 1468145 | spittlebugs or froghoppers | ||
| 1468224 | tiger moth | Lophocampa ingens | |
| 1468374 | fir engraver | Scolytus ventralis | 1982 |
| 1467215 | herbicides (general) | caused by soil sterilant applied along a fence across the street | |
| 1467297 | comandra blister rust | Cronartium comandrae | |
| 1468357 | European pine shoot moth | Rhyacionia buoliana | Mountain View Ranger District - Wasatch-Cache National Forest, Utah |
| 1468287 | white fir needleminer | Epinotia meritana | |
| 1468307 | sugar pine tortrix | Choristoneura lambertiana | |
| 1467008 | comandra blister rust | Cronartium comandrae | July 2, 1965 |
| 1467118 | fir broom rust | Melampsorella caryophyllacearum | |
| 1468308 | sugar pine tortrix | Choristoneura lambertiana | past defoliation evident |
| 1468309 | sugar pine tortrix | Choristoneura lambertiana | |
| 1468275 | poplar borer | Saperda calcarata | |
| 1468258 | spruce spider mite | Oligonychus ununguis | |
| 1468412 | Ips engraver beetles | Ips spp. | bad slash disposal |
| 1468414 | Ips engraver beetles | Ips spp. | |
| 1467379 | Medusa needle blight | Davisomycella medusa | |
| 1467280 | stalactiform blister rust | Cronartium coleosporioides | |
| 1467047 | lodgepole pine | Pinus contorta | young staminate flowers |
| 1468214 | western spruce budworm | Choristoneura freemani | |
| 1467221 | air pollutants | ||
| 1467194 | drought | ||
| 1467132 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | palmate broom |
| 1467214 | chemicals | boron damage | |
| 1467385 | white pine needlecast | Lophodermella arcuata | |
| 1468118 | white pine weevil | Pissodes strobi | |
| 1467155 | black stain root disease | Ophiostoma wageneri | |
| 1467270 | western gall rust | Endocronartium harknessii | atypical elongated galls |
| 1467279 | stalactiform blister rust | Cronartium coleosporioides | |
| 1467135 | dwarf mistletoes | Arceuthobium spp. | |
| 1467398 | common snow mold | Phacidium infestans | |
| 1467278 | stalactiform blister rust | Cronartium coleosporioides | |
| 1467016 | limb rust | Peridermium filamentosum | |
| 1467034 | bear | Ursus spp. | |
| 1468002 | woodpeckers | Sapsucker damage | |
| 1468119 | lodgepole terminal weevil | Pissodes terminalis | |
| 1467029 | avalanches | ||
| 1468001 | Douglas-fir tussock moth | Orgyia pseudotsugata | defoliated grand fir |
| 1467060 | mountain pine beetle | Dendroctonus ponderosae | |
| 1467300 | comandra blister rust | Cronartium comandrae | |
| 1467014 | limb rust | Peridermium filamentosum | |
| 1467392 | needle cast | Virgella robusta | |
| 1467112 | dwarf mistletoes | Arceuthobium spp. | |
| 1468205 | southwestern tent caterpillar | Malacosoma incurvum | |
| 1467218 | air pollutants | ozone | |
| 1467212 | herbicides (general) | caused by soil sterilant applied around sign post to prevent grass growth | |
| 1467009 | frost and winter injury (general) | winter injury | |
| 1467091 | spruce coneworm | Dioryctria abietella | |
| 1468218 | Douglas-fir beetle | Dendroctonus pseudotsugae | |
| 1467277 | stalactiform blister rust | Cronartium coleosporioides | |
| 1467328 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467110 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467138 | Cytospora canker of fir | Cytospora abietis | |
| 1467273 | limb rust | Peridermium filamentosum | |
| 1468098 | spruce beetle | Dendroctonus rufipennis | Manti-LaSal National Forest, Utah |
| 1468286 | white fir needleminer | Epinotia meritana | |
| 1467376 | Rhabdocline needlecast | Rhabdocline weirii | |
| 1467019 | black stain root disease | Ophiostoma wageneri | |
| 1467253 | white pine blister rust | Cronartium ribicola | canker with route of entry (needle) shown |
| 1468125 | white fir needleminer | Epinotia meritana | |
| 1467334 | ponderosa pine dwarf mistletoe | Arceuthobium vaginatum | |
| 1468008 | canker | ||
| 1467069 | subalpine fir | Abies lasiocarpa | |
| 1467075 | white fir | Abies concolor | young pistillate flower |
| 1467076 | two needle pinyon | Pinus edulis | staminate flowers |
| 1468254 | spruce spider mite | Oligonychus ununguis | |
| 1467413 | white pine blister rust | Cronartium ribicola | aeciospores; usually produced on cankers at least 2 years old; May 1976 |
| 1467419 | white pine blister rust | Cronartium ribicola | basidiospore germinating in stomata; 40x with flourescence |
| 1467426 | white pine blister rust | Cronartium ribicola | incipient canker |
| 1467427 | white pine blister rust | Cronartium ribicola | pycniospores produced 6 months to 3 years later |
| 1467428 | white pine blister rust | Cronartium ribicola | girdling caused by canker |
| 1467430 | white pine blister rust | Cronartium ribicola | pollen to be collected from phenotypically resistant trees in areas of high rust incidence |
| 1467432 | white pine blister rust | Cronartium ribicola | female strobili; pollen from male flowers collected from phenotypically resistant trees in areas of high rust incidence for pollenation |
| 1467433 | white pine blister rust | Cronartium ribicola | pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage |
| 1467436 | white pine blister rust | Cronartium ribicola | pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage |
| 1467437 | white pine blister rust | Cronartium ribicola | pollen collected from phenotypically resistant trees in areas of high rust incidence; bags applied to prevent insect damage |
| 1467447 | white pine blister rust | Cronartium ribicola | premature shedding of infected needles |
| 1467452 | mountain pine beetle | Dendroctonus ponderosae | |
| 1467453 | mountain pine beetle | Dendroctonus ponderosae | |
| 1467063 | mountain pine beetle | Dendroctonus ponderosae | with larvae |
| 1467064 | elk | Cervus canadensis | |
| 1467065 | prescribed fire | standing burn of mountain pine beetle infested timber | |
| 1467068 | prescribed fire | mountain pine beetle control | |
| 1467109 | dwarf mistletoes | Arceuthobium spp. | |
| 1467103 | dwarf mistletoes | Arceuthobium spp. | |
| 1467104 | dwarf mistletoes | Arceuthobium spp. | killed by beetles and mistletoe infested |
| 1467105 | dwarf mistletoes | Arceuthobium spp. | boulder flat stand; extreme dwarf mistletoe and fuel loading |
| 1467021 | prescribed fire | standing burn of "bug" infested timber | |
| 1467026 | Nectria canker | Nectria spp. | sporodochia |
| 1467012 | annosum root disease | Heterobasidion annosum | |
| 1467013 | flooding/high water | ||
| 1467052 | woodpeckers | chips on ground from activity | |
| 1467111 | dwarf mistletoes | Arceuthobium spp. | June 1978 |
| 1467137 | Cytospora canker of fir | Cytospora abietis | heavily infested limbs killed |
| 1467114 | dwarf mistletoes | Arceuthobium spp. | |
| 1467115 | dwarf mistletoes | Arceuthobium spp. | |
| 1467117 | dwarf mistletoes | Arceuthobium spp. | |
| 1467133 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467134 | dwarf mistletoes | Arceuthobium spp. | pendulous broom |
| 1467210 | herbicides (general) | close up of 1467209; discoloration, curl, and chlorosis | |
| 1467167 | veiled polypore | Cryptoporus volvatus | |
| 1467181 | heart rot | Laricifomes officinalis | |
| 1467182 | heart rot | Laricifomes officinalis | |
| 1467335 | limber pine dwarf mistletoe | Arceuthobium cyanocarpum | |
| 1467337 | limber pine dwarf mistletoe | Arceuthobium cyanocarpum | |
| 1467341 | Digger pine dwarf mistletoe | Arceuthobium occidentale | |
| 1467342 | Digger pine dwarf mistletoe | Arceuthobium occidentale | |
| 1467350 | white fir dwarf mistletoe | Arceuthobium abietinum f.sp. concoloris | bole canker acted as an entry portal for Pholiota adiposa |
| 1467351 | white fir dwarf mistletoe | Arceuthobium abietinum f.sp. concoloris | female |
| 1467356 | white fir dwarf mistletoe | Arceuthobium abietinum f.sp. concoloris | holdfast firmly established on host |
| 1467307 | comandra blister rust | Cronartium comandrae | telia |
| 1467310 | pinyon blister rust | Cronartium occidentale | telia |
| 1467311 | mistletoes | Phoradendron spp. | |
| 1467313 | mistletoes | Phoradendron spp. | |
| 1467315 | mistletoes | Phoradendron spp. | |
| 1467316 | mistletoes | Phoradendron spp. | |
| 1467318 | mistletoes | Phoradendron spp. | |
| 1467321 | mistletoes | Phoradendron spp. | |
| 1467322 | mistletoes | Phoradendron spp. | |
| 1467323 | mistletoes | Phoradendron spp. | |
| 1467324 | mistletoes | Phoradendron spp. | holes in wood from true mistletoe roots |
| 1467377 | Medusa needle blight | Davisomycella medusa | |
| 1467327 | Douglas-fir dwarf mistletoe | Arceuthobium douglasii | |
| 1467364 | Elytroderma needle cast of pine | Elytroderma deformans | |
| 1467380 | Medusa needle blight | Davisomycella medusa | |
| 1467257 | white pine blister rust | Cronartium ribicola | uredia on underside of leaves |
| 1467252 | white pine blister rust | Cronartium ribicola | aecia |
| 1467301 | comandra blister rust | Cronartium comandrae | aecia formed on canker |
| 1467302 | comandra blister rust | Cronartium comandrae | aecia on canker |
| 1467299 | comandra blister rust | Cronartium comandrae | |
| 1467291 | fir broom rust | Melampsorella caryophyllacearum | |
| 1468263 | cooley spruce gall adelgid | Adelges cooleyi | |
| 1468310 | sugar pine tortrix | Choristoneura lambertiana | top killed |
| 1468291 | cone borers | Eucosma spp. | exit hole |
| 1468293 | cone borers | Eucosma spp. | uninfested terminal - compare to UGA1468292 for symptoms of infestation |
| 1468358 | pine tube moth | Argyrotaenia pinatubana | |
| 1468359 | western balsam bark beetle | Dryocoetes confusus | August 1993 |
| 1468375 | fir engraver | Scolytus ventralis | 7 inch diameter tree |
| 1468384 | woodpeckers | woodpecker activity on spruce beetle | |
| 1468320 | western pineshoot borer | Eucosma sonomana | |
| 1468344 | Armillaria root rots | Armillaria spp. | stump removal |
| 1468348 | European pine shoot moth | Rhyacionia buoliana | |
| 1468350 | European pine shoot moth | Rhyacionia buoliana | |
| 1468279 | white fir needleminer | Epinotia meritana | |
| 1468256 | giant conifer aphids | Cinara spp. | |
| 1468215 | Douglas-fir beetle | Dendroctonus pseudotsugae | |
| 1468250 | larch casebearer | Coleophora laricella | |
| 1468210 | southwestern tent caterpillar | Malacosoma incurvum | |
| 1468163 | aspen leafminer | Phyllocnistis populiella | June 9, 1970 |
| 1468191 | larger boxelder leafroller | Archips negundana | |
| 1468200 | southwestern tent caterpillar | Malacosoma incurvum | male (left) female (right) |
| 1468023 | poplar borer | Saperda calcarata | bark removed |
| 1468024 | Marssonina leaf spot | Marssonina tremulae | |
| 1468093 | Douglas-fir beetle | Dendroctonus pseudotsugae | in gallery |
| 1468089 | bronze poplar borer | Agrilus liragus | |
| 1468058 | spruce beetle | Dendroctonus rufipennis | |
| 1468059 | spruce beetle | Dendroctonus rufipennis | |
| 1468060 | mountain pine beetle | Dendroctonus ponderosae | pitch tubes |
| 1468061 | mountain pine beetle | Dendroctonus ponderosae | |
| 1468073 | pinyon needle scale | Matsucoccus acalyptus | 1970 |
| 1468009 | dwarf mistletoes | Arceuthobium spp. | |
| 1468010 | construction | grading and paving weakened tree | |
| 1468005 | Armillaria root rot | Armillaria mellea | mycelial fans exposed after bark is removed |
| 1468007 | construction | massive reduction in root area by severing of roots during construction |
