USDA Forest Service - Region 2 - Rocky Mountain Region Archive's Images
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| 166 Images of 70 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1442191 | harvesting | John Deere Harvester Medicine Bow National Forest, Wyoming June 1990 | |
| 1441141 | mountain pine beetle | Dendroctonus ponderosae | West toward Bear Mountain, Colorado; Feb. 1992 |
| 1441101 | conifer sawfly | Neodiprion autumnalis | |
| 1442003 | selection thinning | Rio Grande National Forest, Colorado | |
| 1442189 | selection thinning | 115-year old stand with residual basal area of 90 square feet per acre. Medicine Bow National Forest, Wyoming. August, 1977 | |
| 1441042 | western spruce budworm | Choristoneura freemani | in silk cover |
| 1442192 | harvesting | John Deere Harvester- front end Medicine Bow National Forest, Wyoming. June 1990 | |
| 1442108 | Phomopsis blight | Phomopsis juniperivora | |
| 1442116 | nitrogen deficiency | Nitrogen deficiency symptoms in first year seedlings | |
| 1442008 | mechanical strip thinning | in Mountain Home, Wyoming | |
| 1442049 | witches broom rust | Gymnosporangium nelsonii | Gymnosporangium nelsonii Fpm 17 Juniperus scopulorum Poudre Canyon, Co. June 11 1974 |
| 1442028 | Scots pine | Pinus sylvestris | Christmas tree Plantation |
| 1441006 | mountain pine beetle | Dendroctonus ponderosae | pitch tubes |
| 1442052 | Dutch elm disease | Ophiostoma ulmi | Ceratacystid ulmi dying tree Ulmus americana Milliken ,CO7-16-74 |
| 1441131 | oystershell scale | Lepidosaphes ulmi | |
| 1441037 | western spruce budworm | Choristoneura freemani | |
| 1441008 | mountain pine beetle | Dendroctonus ponderosae | with blue stain |
| 1442235 | Gambel oak | Quercus gambelii | Typical stand -early spring |
| 1442264 | white pine blister rust | Cronartium ribicola | Stem swelling. July 1974 |
| 1442164 | Engelmann spruce | Picea engelmannii | |
| 1442148 | thinning (stand) | Arapaho National Forest, Colorado 6-95 | |
| 1442149 | thinning (stand) | Arapaho National Forest, Colorado 6-95 | |
| 1442141 | black rot | Ceratocystis fimbriata | |
| 1442147 | thinning (stand) | Arapaho National Forest, Colorado 6-95 | |
| 1442168 | bristlecone pine | Pinus aristata | Needles |
| 1442166 | Engelmann spruce | Picea engelmannii | |
| 1442142 | Phyllosticta leaf spots | Phyllosticta spp. | Gunnison National Forest |
| 1442057 | Dothichiza canker | Dothichiza populea | Dothichiza |
| 1442040 | comandra blister rust | Cronartium comandrae | showing aecia |
| 1442203 | frost and winter injury (general) | Winter damage. Medicine Bow National Forest, Wyoming | |
| 1442230 | columbine | Aquilegia spp. | |
| 1442238 | Gambel oak | Quercus gambelii | Catkins in spring |
| 1441023 | spruce beetle | Dendroctonus rufipennis | newly laid |
| 1442146 | white heartwood rot | Phellinus tremulae | |
| 1441039 | western spruce budworm | Choristoneura freemani | |
| 1441009 | mountain pine beetle | Dendroctonus ponderosae | April 1978 |
| 1441007 | mountain pine beetle | Dendroctonus ponderosae | with larvae and pupae |
| 1442019 | frost and winter injury (general) | ||
| 1441102 | conifer sawfly | Neodiprion autumnalis | Fort Collins, Colorado |
| 1441011 | mountain pine beetle | Dendroctonus ponderosae | |
| 1442250 | blue spruce | Picea pungens | male cones |
| 1441108 | pinyon spindlegall midge | Pinyonia edulicola | |
| 1442063 | ash heart rot | Perenniporia fraxinophila | Fomes Fraxinopholus on green ASA Neb. |
| 1442267 | comandra blister rust | Cronartium comandrae | |
| 1442053 | brown felt blight | Herpotrichia juniperi | |
| 1442169 | bristlecone pine | Pinus aristata | Pine Needles and cones |
| 1442045 | western gall rust | Endocronartium harknessii | Frazer Experiment Forest |
| 1442058 | Dothichiza canker | Dothichiza populea | Dothichiza |
| 1442240 | Gambel oak | Quercus gambelii | Bark on older tree |
| 1442067 | Phytophthora root rot | Phytophthora cinnamomi | Healthy (left) diseased (right) |
| 1442059 | Dothichiza canker | Dothichiza populea | Dothichiza |
| 1441128 | pine needle scale | Chionaspis pinifoliae | White female adult scales; eggs overwintering under adult scales |
| 1442139 | black rot | Ceratocystis fimbriata | |
| 1442044 | western gall rust | Endocronartium harknessii | Frazer Experiment Forest |
| 1442140 | black rot | Ceratocystis fimbriata | |
| 1442248 | Engelmann spruce | Picea engelmannii | |
| 1442134 | sunscald | ||
| 1442048 | limb rust | Peridermium filamentosum | Roos National Forest Colorado, July 1974 |
| 1441025 | spruce beetle | Dendroctonus rufipennis | |
| 1442107 | Phomopsis blight | Phomopsis juniperivora | |
| 1442241 | Gambel oak | Quercus gambelii | Bark on older tree |
| 1442143 | Marssonina leaf spot | Marssonina tremulae | San Juan National Forest |
| 1442251 | blue spruce | Picea pungens | |
| 1441038 | western spruce budworm | Choristoneura freemani | larva pupating, San Juan National Forest, Colorado |
| 1442165 | Engelmann spruce | Picea engelmannii | |
| 1441053 | Douglas-fir tussock moth | Orgyia pseudotsugata | defoliation |
| 1442138 | Hypoxylon canker of aspen | Entoleuca mammata | |
| 1442257 | blue spruce | Picea pungens | female cones |
| 1442231 | blueflag iris | Iris versicolor | Wild Iris |
| 1441064 | pine needle sheathminer | Zelleria haimbachi | |
| 1441130 | oystershell scale | Lepidosaphes ulmi | |
| 1442236 | Gambel oak | Quercus gambelii | Typical stand -early spring |
| 1441044 | western spruce budworm | Choristoneura freemani | |
| 1441066 | pine needle sheathminer | Zelleria haimbachi | note stunted brown needles at Nebraska National Forest |
| 1441076 | pandora moth | Coloradia pandora | Mature larvae feeding on needles. Medicine Bow National Forest, Wyoming |
| 1442247 | Engelmann spruce | Picea engelmannii | High elevation stand - Independence Pass, Colorado |
| 1442131 | mourning dove | Zenaida macroura | |
| 1441067 | pine needle sheathminer | Zelleria haimbachi | |
| 1441098 | red-humped oakworm moth | Symmerista canicosta | Larvae feeding on leaves. |
| 1441099 | red-humped oakworm moth | Symmerista canicosta | eggs on leaves. |
| 1442037 | leafy spurge | Euphorbia esula | |
| 1442209 | lightning | Lightning strike | |
| 1441065 | pine needle sheathminer | Zelleria haimbachi | and damage |
| 1441052 | Douglas-fir tussock moth | Orgyia pseudotsugata | August 1973 |
| 1442109 | goldsmith beetles | Cotalpa spp. | Cotalpa Goldsmith beetle L. Gillman 14 June 1977 |
| 1442246 | Engelmann spruce | Picea engelmannii | |
| 1441051 | Douglas-fir tussock moth | Orgyia pseudotsugata | |
| 1441050 | Douglas-fir tussock moth | Orgyia pseudotsugata | and young larvae |
| 1442152 | bristlecone pine | Pinus aristata | Pike National Forest |
| 1441026 | Douglas-fir beetle | Dendroctonus pseudotsugae | Golden Gate Canyon State Park, Colorado, March 1989 |
| 1442254 | blue spruce | Picea pungens | male cones |
| 1442150 | lodgepole pine | Pinus contorta | Unmanaged stand Arapaho National Forest, Colorado 6-95 |
| 1441068 | pine needle sheathminer | Zelleria haimbachi | and damaged needles |
| 1442110 | cottonwood leaf beetle | Chrysomela scripta | |
| 1442244 | Engelmann spruce | Picea engelmannii | |
| 1442161 | white fir | Abies concolor | needles |
| 1442159 | white fir | Abies concolor | |
| 1442151 | lodgepole pine | Pinus contorta | Unmanaged stand, Arapaho National Forest, Colorado 6-95 |
| 1441129 | pine needle scale | Chionaspis pinifoliae | |
| 1441045 | western spruce budworm | Choristoneura freemani | defoliation; San Isabel National Forest, Colorado |
| 1442188 | mule deer | Odocoileus hemionus | Browsing in cut-over stand. |
| 1442187 | mule deer | Odocoileus hemionus | Browsing in cut-over stand |
| 1442038 | comandra blister rust | Cronartium comandrae | note absence of swelling |
| 1441127 | mountain pine beetle | Dendroctonus ponderosae | with clerid larva predator |
| 1442160 | white fir | Abies concolor | needles |
| 1442024 | air pollutants | chlorosis of older needles | |
| 1441063 | sugar pine tortrix | Choristoneura lambertiana | defoliation |
| 1442158 | white fir | Abies concolor | older bark |
| 1442157 | white fir | Abies concolor | older bark |
| 1442258 | blue spruce | Picea pungens | |
| 1442153 | limber pine | Pinus flexilis | |
| 1442255 | blue spruce | Picea pungens | male cones |
| 1442256 | blue spruce | Picea pungens | |
| 1442137 | Hypoxylon canker of aspen | Entoleuca mammata | Carson National Forest |
| 1442237 | Gambel oak | Quercus gambelii | winter twig and buds |
| 1442154 | bristlecone pine | Pinus aristata | cone and pine needles |
| 1442094 | ponderosa pine | Pinus ponderosa | pruning |
| 1442234 | Gambel oak | Quercus gambelii | |
| 1441151 | mountain pine beetle | Dendroctonus ponderosae | |
| 1442162 | Engelmann spruce | Picea engelmannii | |
| 1442043 | white pine blister rust | Cronartium ribicola | flagging |
| 1442167 | bristlecone pine | Pinus aristata | |
| 1442074 | fire | ||
| 1442156 | white fir | Abies concolor | young bark |
| 1441154 | mountain pine beetle | Dendroctonus ponderosae | salvage cut to 80 BA; Bear Mountain Basin July 1992 |
| 1442136 | bear | Ursus spp. | |
| 1441155 | mountain pine beetle | Dendroctonus ponderosae | salvage sale; Bear Mountain Basin; July 1992 |
| 1441018 | mountain pine beetle | Dendroctonus ponderosae | Stand cut to 70 square feet of basal area, Black Hills National Forest |
| 1442062 | false tinder polypore | Phellinus igniarius | Fomes igniarius conks Stage Road Colorado Springs 5-8-74 |
| 1441120 | wind | Blowdown, Big Horn National Forest, | |
| 1442132 | moose | Alces alces | Wind River R.D. Shoshone National Forest |
| 1442001 | red pine | Pinus resinosa | |
| 1442099 | mistletoes | Phoradendron spp. | |
| 1441087 | western tent caterpillar | Malacosoma californicum | |
| 1441021 | mountain pine beetle | Dendroctonus ponderosae | burning beetle infested trees |
| 1442252 | blue spruce | Picea pungens | female cones |
| 1442245 | Engelmann spruce | Picea engelmannii | female cones |
| 1442242 | Gambel oak | Quercus gambelii | |
| 1442105 | dwarf mistletoes | Arceuthobium spp. | Male and Female plants. |
| 1442031 | Japanese pine sawyer | Monochamus alternatus | The Adult Beetle feeding on smaller branches of healthy pines at the time. Nematodes leave the trachea through the spiracle openings and enter wounds caused by beetle feeding. |
| 1442068 | Phytophthora root rot | Phytophthora cinnamomi | stand break up due to disease |
| 1442243 | Engelmann spruce | Picea engelmannii | |
| 1442155 | thinning (stand) | 115 year old stand, Basal Area 90 square feet, Medicine Bow National Forest, Wyoming | |
| 1441133 | lodgepole pine | Pinus contorta | Unthinned (left) and thinned (right) |
| 1442103 | ponderosa pine dwarf mistletoe | Arceuthobium vaginatum | heavily infected with dwarf mistletoe killed by mountain pine beetle |
| 1442239 | Gambel oak | Quercus gambelii | leaves |
| 1441078 | pandora moth | Coloradia pandora | Young pine being defoliated by larvae. Medicine Bow National Forest, Wyoming. |
| 1442036 | mountain pine beetle | Dendroctonus ponderosae | beetle infected trees piled ready to be burned |
| 1442088 | pinyon dwarf mistletoe | Arceuthobium divaricatum | Male plant |
| 1441152 | mountain pine beetle | Dendroctonus ponderosae | Bear Mountain Basin; Note fading trees |
| 1441055 | Douglas-fir tussock moth | Orgyia pseudotsugata | Pheromone Trap |
| 1441020 | mountain pine beetle | Dendroctonus ponderosae | Burning a large pile of beetle infested trees at night. Pike National Forest, South Platte District. June 1963 |
| 1441118 | frost and winter injury (general) | ||
| 1442032 | pine wilt nematode | Bursaphelenchus xylophilus | showing epidemic of pine wilt caused by nematode |
| 1441081 | moths | Tiger moth | |
| 1441164 | Ichneumonid wasp | Pimpla spp. | |
| 1441153 | mountain pine beetle | Dendroctonus ponderosae | 15 July 1992 Bear Mountain Basin Right of three NW view |
| 1441142 | mountain pine beetle | Dendroctonus ponderosae | North West toward Spring Creek MPB on BL/KH Feb1992 MIDDLE |
| 1441143 | mountain pine beetle | Dendroctonus ponderosae | N-NE Bear Mountain Basin, BLKH MPB RIGHT |
| 1441145 | mountain pine beetle | Dendroctonus ponderosae | Reshoot #2 Bear Mountain Basin looking at Northwest MPB Veiw NW MIDDLE |
| 1441146 | mountain pine beetle | Dendroctonus ponderosae | Reshoot #2 Bear Mountain Basin looking North BLKH MPB July 24,92 RIGHT |
| 1441147 | mountain pine beetle | Dendroctonus ponderosae | Bear Mountain Basin Before ( Winter 92) |
| 1441148 | mountain pine beetle | Dendroctonus ponderosae | Bear Mountain Basin BLKH mpb Feb 1992 |
| 1441149 | mountain pine beetle | Dendroctonus ponderosae | 15 July 1992 retake #1 Bear Mountain BLKH MPB -moth faders |
| 1441123 | spruce beetle | Dendroctonus rufipennis | from woodpeckers foraging on spruce beetle |
| 1441080 | tiger moth | Lophocampa ingens | Tiger moth Halisisieta ingcas Black Forest 1966 Severly damaged top of small Ponderosa Pine. |
