William M. Ciesla's Images
Title: OwnerOrganization: Forest Health Management International
Unit: Fort Collins, CO.
Country: United States
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Bill Ciesla is a forest health specialist and owner of Forest Health Management International, a consulting company based in Fort Collins, CO. Bill received his undergraduate and graduate degrees in forestry and forest entomology from the State University of New York, College of Environmental Science and Forestry at Syracuse University, Syracuse, NY. He has held assignments with USDA Forest Service as a forest entomologist and forest health program manager in Asheville, NC, Pineville, LA, Missoula, MT, Davis, CA, Fort Collins, CO and Portland, OR. From 1990 to 1995, he served as Forest Protection Officer for the Food and Agriculture Organization in Rome, Italy. His areas of interest include biology and management of forest insects and diseases and the use of remote sensing for forest damage assessment Bill is an avid photographer, specializing in close ups of insects and wildflowers and of forest damage. |
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| 1,154 Images of 338 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 2156007 | heartleaf | Hexastylis spp. | |
| 5466812 | pine tortoise scale | Toumeyella parvicornis | |
| 5466813 | pine tortoise scale | Toumeyella parvicornis | |
| 5466814 | pine tortoise scale | Toumeyella parvicornis | |
| 0758244 | Douglas-fir beetle | Dendroctonus pseudotsugae | Summary of tree and volume loss estimates for a Douglas-fir beetle outbreak in the North Fork Clearwater River drainage, ID based on aerial photo and ground surveys. |
| 0758231 | forest tent caterpillar | Malacosoma disstria | Map made of defoliation by forest tent caterpillar relative to experimental spray blocks, Mobile River Basin, AL. |
| 0758240 | Douglas-fir beetle | Dendroctonus pseudotsugae | Map of land ownerships in the area affected by the 1971-73 Douglas-fir beetle outbreak in the North Fork Clearwater River area. |
| 0758241 | Douglas-fir beetle | Dendroctonus pseudotsugae | Map showing location of aerial photo and ground sample plots used to assess the 1971 Douglas-fir beetle outbreak in the North Fork Clearwater River drainage, ID. |
| 0758242 | Douglas-fir beetle | Dendroctonus pseudotsugae | Regression lines of aerial photo vs ground counts of number of trees and volume affected, 1971 Douglas-fir beetle outbreak, North Fork Clearwater River, ID. |
| 0758243 | Douglas-fir beetle | Dendroctonus pseudotsugae | Estimates of number of trees and volume lost due to two years of Douglas-fir beetle infestation based on aerial photo/ground surveys, North Fork Clearwater River, ID. |
| 1254081 | ponderosa pine | Pinus ponderosa | Normal needle cast on ponderosa pine in autumn. |
| 1309007 | oak rough bulletgall wasp | Disholcaspis quercusmamma | Galls, Fort Collins, CO. |
| 2122049 | poplar twiggall fly | Hexomyza schineri | Galls, Fort Collins, CO. |
| 2167032 | shaggy fleabane | Erigeron pumilus | |
| 1254061 | galls | Galls on foliage, Fort Collins, CO. | |
| 2122020 | cooley spruce gall adelgid | Adelges cooleyi | Gall |
| 2122021 | cooley spruce gall adelgid | Adelges cooleyi | Gall. Fort Collins, CO |
| 1428076 | American bison | Bison bison | |
| 5466843 | spruce beetle | Dendroctonus rufipennis | |
| 5466844 | spruce beetle | Dendroctonus rufipennis | |
| 5466845 | spruce beetle | Dendroctonus rufipennis | |
| 5466851 | spruce beetle | Dendroctonus rufipennis | |
| 5466852 | spruce beetle | Dendroctonus rufipennis | |
| 5466853 | spruce beetle | Dendroctonus rufipennis | |
| 5466861 | spruce beetle | Dendroctonus rufipennis | |
| 5466860 | spruce beetle | Dendroctonus rufipennis | |
| 5466807 | oleander aphid | Aphis nerii | |
| 5466847 | spruce beetle | Dendroctonus rufipennis | callow adults |
| 5466848 | spruce beetle | Dendroctonus rufipennis | Callow adults |
| 5466823 | mountain pine beetle | Dendroctonus ponderosae | |
| 5466820 | mountain pine beetle | Dendroctonus ponderosae | |
| 5466821 | mountain pine beetle | Dendroctonus ponderosae | |
| 5466795 | pinyon ips | Ips confusus | |
| 5466796 | pinyon ips | Ips confusus | |
| 5466797 | Ips engraver beetles | Ips spp. | |
| 5466792 | pinyon ips | Ips confusus | |
| 5466793 | pinyon ips | Ips confusus | |
| 5466794 | pinyon ips | Ips confusus | |
| 5466805 | oleander aphid | Aphis nerii | |
| 5466771 | giant conifer aphids | Cinara spp. | |
| 5466772 | giant conifer aphids | Cinara spp. | |
| 5466809 | long-horned beetle | Leptura propinqua | |
| 5466768 | giant conifer aphids | Cinara spp. | |
| 5466769 | giant conifer aphids | Cinara spp. | |
| 5466770 | giant conifer aphids | Cinara spp. | |
| 5466857 | spruce beetle | Dendroctonus rufipennis | |
| 5466810 | widow skimmer | Libellula luctuosa | |
| 5466811 | widow skimmer | Libellula luctuosa | |
| 5466790 | elm leaf beetle | Xanthogaleruca luteola | |
| 5466865 | western spruce budworm | Choristoneura freemani | |
| 5466871 | western spruce budworm | Choristoneura freemani | |
| 5466872 | western spruce budworm | Choristoneura freemani | |
| 5466873 | western spruce budworm | Choristoneura freemani | |
| 5466866 | western spruce budworm | Choristoneura freemani | |
| 5466867 | western spruce budworm | Choristoneura freemani | |
| 5466868 | western spruce budworm | Choristoneura freemani | |
| 5466869 | western spruce budworm | Choristoneura freemani | |
| 5466870 | western spruce budworm | Choristoneura freemani | |
| 5466766 | american ermine moth | Yponomeuta multipunctella | |
| 5466767 | american ermine moth | Yponomeuta multipunctella | |
| 5466762 | mapleleaf viburnum | Viburnum acerifolium | |
| 5466763 | mapleleaf viburnum | Viburnum acerifolium | |
| 5466764 | hobblebush | Viburnum lantanoides | |
| 5466757 | painted trillium | Trillium undulatum | |
| 5466758 | painted trillium | Trillium undulatum | |
| 5466759 | sweet wakerobin | Trillium vaseyi | |
| 5466761 | sweet wakerobin | Trillium vaseyi | |
| 5466752 | illscented wakerobin | Trillium rugelii | |
| 5466753 | illscented wakerobin | Trillium rugelii | |
| 5466754 | jeweled wakerobin | Trillium simile | |
| 5466756 | painted trillium | Trillium undulatum | |
| 5466751 | illscented wakerobin | Trillium rugelii | |
| 5466750 | yellow wakerobin | Trillium luteum | |
| 5466748 | yellow wakerobin | Trillium luteum | |
| 5466749 | yellow wakerobin | Trillium luteum | |
| 5466743 | wakerobin | Trillium erectum var. erectum | |
| 5466744 | wakerobin | Trillium erectum var. erectum | |
| 5466745 | white trillium | Trillium grandiflorum | |
| 5466736 | feathery false lily of the valley | Maianthemum racemosum ssp. racemosum | |
| 5466738 | little sweet betsy | Trillium cuneatum | |
| 5466739 | little sweet betsy | Trillium cuneatum | |
| 5466740 | little sweet betsy | Trillium cuneatum | |
| 5466731 | mayapple | Podophyllum peltatum | |
| 5466728 | Canadian lousewort | Pedicularis canadensis | |
| 5466724 | partridgeberry | Mitchella repens | |
| 5466727 | Canadian lousewort | Pedicularis canadensis | |
| 5466721 | eastern tent caterpillar | Malacosoma americanum | |
| 5466722 | eastern tent caterpillar | Malacosoma americanum | tent |
| 5466723 | eastern tent caterpillar | Malacosoma americanum | tent |
| 5466717 | mountain magnolia | Magnolia fraseri | |
| 5466718 | mountain magnolia | Magnolia fraseri | |
| 5466719 | eastern tent caterpillar | Malacosoma americanum | |
| 5466720 | eastern tent caterpillar | Malacosoma americanum | |
| 5466716 | highland doghobble | Leucothoe fontanesiana | |
| 5466703 | yellow mandarin | Prosartes maculata | |
| 5466701 | American squawroot | Conopholis americana | |
| 5466699 | loopers | Chrysodeixis spp. | |
| 5466700 | loopers | Chrysodeixis spp. | |
| 5466696 | tuliptree silkmoth | Callosamia angulifera | |
| 5466694 | crossvine | Bignonia capreolata | |
| 5466695 | crossvine | Bignonia capreolata | |
| 5466692 | Jack in the pulpit | Arisaema triphyllum | |
| 5466693 | Jack in the pulpit | Arisaema triphyllum | |
| 5466689 | rue anemone | Thalictrum thalictroides | |
| 5466688 | wood anemone | Anemone quinquefolia | |
| 5466726 | speckled green fruitworm | Orthosia hibisci | |
| 5466734 | fire pink | Silene virginica | |
| 5466737 | heartleaf foamflower | Tiarella cordifolia | |
| 5466707 | yellow trout lily | Erythronium americanum | |
| 5466704 | greenstriped mapleworm | Dryocampa rubicunda | |
| 5466705 | greenstriped mapleworm | Dryocampa rubicunda | |
| 5466702 | flowering dogwood | Cornus florida | |
| 5466697 | eastern sweetshrub | Calycanthus floridus | |
| 5466698 | eastern sweetshrub | Calycanthus floridus | |
| 5466765 | hobblebush | Viburnum lantanoides | |
| 5466755 | painted trillium | Trillium undulatum | |
| 5466760 | sweet wakerobin | Trillium vaseyi | |
| 5466746 | white trillium | Trillium grandiflorum | |
| 5466735 | fire pink | Silene virginica | |
| 5466732 | flame azalea | Rhododendron calendulaceum | |
| 5466733 | bouncingbet | Saponaria officinalis | |
| 5466729 | fernleaf phacelia | Phacelia bipinnatifida | |
| 5466730 | mayapple | Podophyllum peltatum | |
| 5466725 | showy orchid | Galearis spectabilis | |
| 5466713 | wild geranium | Geranium maculatum | |
| 5466714 | thymeleaf bluet | Houstonia serpyllifolia | |
| 5466715 | blueflag iris | Iris versicolor | |
| 5466708 | yellow trout lily | Erythronium americanum | |
| 5466712 | wild geranium | Geranium maculatum | |
| 5466706 | poor-robin fleabane | Erigeron pulchellus | |
| 5466690 | red columbine | Aquilegia canadensis | |
| 5466691 | red columbine | Aquilegia canadensis | |
| 1587050 | spruce beetle | Dendroctonus rufipennis | spruce beetle mortality |
| 1587031 | pine engraver | Ips pini | PP topkilled by Ips pini |
| 1546169 | checkered beetle | Thanasimus dubius | Larva of the predator clerid (probably Thanasimus dubius) working through the galleries bored by the southern pine beetle, Dendroctonus frontalis, searching for prey. |
| 1274018 | pinyon ips | Ips confusus | Heavy mortality. Mesa Verde N.P., CO. 3rd place in the Southern Forest Insect Work Conference Photo Slaon in the category of Forest Insect Damage. |
| 1546194 | southern pine beetle | Dendroctonus frontalis | aerial view of a southern pine beetle infestation |
| 1546001 | small southern pine engraver | Ips avulsus | Upper crown of longleaf pine killed by Ips avulsus. |
| 2156017 | Kousa dogwood | Cornus kousa | |
| 1254018 | red-legged buprestis | Buprestis rufipes | |
| 2167052 | plains pricklypear | Opuntia polyacantha | |
| 2167053 | plains pricklypear | Opuntia polyacantha | |
| 5382464 | cicada | Platypedia putnami | |
| 5382443 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of fresh attacks in ponderosa pine amid older dead lodgepole pines, Colorado State Forest |
| 5382395 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality |
| 5382384 | spruce broom rust | Chrysomyxa arctostaphyli | Spores on infected foliage |
| 0758053 | remote sensing | Color infrared aerial photo taken from a U-2 of forest treated for control of gypsy moth. Treatment was of poor quality and area has gray streaks of defoliation due to inadequate coverage. | |
| 0758055 | remote sensing | Color infrared aerial photo taken over southern PA with a U-2 showing broadleaf forests (bright red) and conifer plantations (dark red brown | |
| 0758057 | remote sensing | Color IR aerial photo taken from a U-2 | |
| 0758058 | remote sensing | Color infrared aerial photo taken from a U-2 aircraft showing the Three Mile Island nuclear power complex. | |
| 0758059 | remote sensing | Color infrared aerial photo of Mason-Dixon line separating PA and MD. This appears as a straight line created by land ownership and land use changes on the state boundary. | |
| 0758096 | remote sensing | Iris II panoramic aerial camera system used in a U-2 reconnaisance aircraft, NASA Ames Research Center. | |
| 0758097 | remote sensing | NASA ER-2 reconnaisance aircraft, NASA Ames Research Center. | |
| 0758067 | remote sensing | SPOT satellite image showing broadleaf forest (bright red) and conifer plantations (dark red brown). | |
| 0758098 | remote sensing | NASA ER-2 reconnaisance aircraft in flight | |
| 0758099 | remote sensing | Field stereo viewer designed by William Klein, USDA Forest Service, for viewing panoramic aerial photos in the field. | |
| 5382336 | spearleaf stonecrop | Sedum lanceolatum ssp. lanceolatum | |
| 0758011 | western tiger swallowtail | Papilio rutulus | Adult on iris leaf |
| 0758110 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality in longleaf pine. |
| 0758111 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality. |
| 5382374 | field chickweed | Cerastium arvense ssp. strictum | |
| 5382388 | Ponderosa pine needleminer | Coleotechnites ponderosae | Damage to foliage |
| 5382389 | Ponderosa pine needleminer | Coleotechnites ponderosae | Mined foliage |
| 5382390 | long-horned beetle | Cosmosalia nigrolineata | on cow parsnip |
| 5382391 | long-horned beetle | Cosmosalia nigrolineata | on cow parsnip |
| 5382401 | bigflower cinquefoil | Potentilla fissa | |
| 5382428 | egret | heron nesting site | |
| 5382429 | egret | heron nesting site | |
| 5382458 | western tiger swallowtail | Papilio rutulus | on milkweed flower |
| 5382465 | cicada | Platypedia putnami | on mountain mahogany |
| 5382466 | cicada | Platypedia putnami | on mountain mahogany |
| 5382467 | cicada | Platypedia putnami | on mountain mahogany |
| 5382468 | Ponderosa pine needleminer | Coleotechnites ponderosae | discoloration due to needle mining |
| 5382469 | Ponderosa pine needleminer | Coleotechnites ponderosae | discoloration due to needle mining |
| 5382470 | Ponderosa pine needleminer | Coleotechnites ponderosae | discoloration due to needle mining |
| 5382484 | northwest fritillary | Speyeria hesperis | on Rocky Mountain bee plant |
| 5382485 | northwest fritillary | Speyeria hesperis | on Rocky Mountain bee plant |
| 5382498 | moose | Alces alces | Aerial view of damage to willow due to overgrazing by moose |
| 5382499 | moose | Alces alces | Aerial view of damage to willow caused by overgrazing by moose |
| 5382408 | threenerve fleabane | Erigeron subtrinervis | |
| 5382419 | pineywoods geranium | Geranium caespitosum var. caespitosum | |
| 5382426 | common cowparsnip | Heracleum maximum | |
| 5382427 | common cowparsnip | Heracleum maximum | |
| 5382477 | anemone | Anemone alpina | |
| 5382494 | American globeflower | Trollius laxus ssp. albiflorus | |
| 5346098 | nuclear polyhedrosis virus | Nucleopolyhedrovirus N/A | Larvae on quaking aspen killed by nucleopolyhedrosis virus, Sange de Cristo Range, CO, July 2007 |
| 0758018 | tomato hornworm | Manduca quinquemaculata | Mature larva feeding on foliage |
| 0758109 | Ips engraver beetles | Ips spp. | Bark slabs provide a source of beetles that have subsequently attacked standing trees. |
| 0758112 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality in a young pine plantation. |
| 1254022 | white pine weevil | Pissodes strobi | |
| 1254023 | white pine weevil | Pissodes strobi | Dead leader in young Engelmann spruce |
| 5382338 | American pasqueflower | Pulsatilla patens | Seed pods |
| 5382340 | Colorado blue columbine | Aquilegia caerulea | Nearly white flowered form |
| 5382341 | western red columbine | Aquilegia elegantula | |
| 5382342 | western red columbine | Aquilegia elegantula | |
| 5382345 | sudden aspen decline | Aerial view of declining aspen stands | |
| 5382346 | large aspen tortrix | Choristoneura conflictana | Aerial view of defoliation of aspen caused by the large aspen tortix |
| 5382347 | large aspen tortrix | Choristoneura conflictana | Aspens defoliated by large aspen tortix |
| 5382348 | defoliation due to unknown cause | ||
| 5382349 | defoliation due to unknown cause | Aerial view of aspen defoliation due to unknown agent | |
| 5382350 | defoliation due to unknown cause | Aerial view of aspen defoliation due to unknown agent | |
| 5382351 | defoliation due to unknown cause | Aerial view of defoliation by an unknown agent | |
| 5382353 | wind | Aerial view of extensive blowdown, Pecos Wilderness | |
| 5382354 | wind | Aerial view of extensive blowdown | |
| 5382355 | boxelder bug | Boisea trivittata | |
| 5382356 | boxelder bug | Boisea trivittata | |
| 5382357 | boxelder bug | Boisea trivittata | Large mass of nymphs and adults |
| 5382358 | boxelder bug | Boisea trivittata | Large mass of adults and nymphs |
| 5382359 | boxelder bug | Boisea trivittata | Adults and nymphs |
| 5382360 | boxelder bug | Boisea trivittata | Adults and nymphs |
| 5382361 | boxelder bug | Boisea trivittata | Adults and nymphs |
| 5382362 | boxelder bug | Boisea trivittata | |
| 5382363 | fire | Aerial view of a small wildfire | |
| 5382365 | Gunnison's mariposa lily | Calochortus gunnisonii | Purple flowered form |
| 5382366 | Gunnison's mariposa lily | Calochortus gunnisonii | Purple flowered form |
| 5382367 | giant red Indian paintbrush | Castilleja miniata | |
| 5382375 | Say stink bug | Chlorochroa sayi | Adult on milkweed |
| 5382376 | Say stink bug | Chlorochroa sayi | Adult on milkweed |
| 5382377 | large aspen tortrix | Choristoneura conflictana | Mature larva |
| 5382378 | large aspen tortrix | Choristoneura conflictana | |
| 5382379 | large aspen tortrix | Choristoneura conflictana | |
| 5382380 | large aspen tortrix | Choristoneura conflictana | Defoliation of quaking aspen |
| 5382381 | large aspen tortrix | Choristoneura conflictana | Mature larva |
| 5382382 | large aspen tortrix | Choristoneura conflictana | |
| 5382383 | spruce broom rust | Chrysomyxa arctostaphyli | Spores on infected foliage |
| 5382385 | spruce broom rust | Chrysomyxa arctostaphyli | Witches broom on spruce |
| 5382386 | spruce broom rust | Chrysomyxa arctostaphyli | Witches broom on spruce |
| 5382392 | tall larkspur | Delphinium barbeyi | |
| 5382393 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality |
| 5382394 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality |
| 5382396 | Douglas-fir beetle | Dendroctonus pseudotsugae | |
| 5382397 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality |
| 5382398 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation |
| 5382399 | darkthroat shootingstar | Dodecatheon pulchellum | |
| 5382402 | orange sneezeweed | Hymenoxys hoopesii | Flowers and foliage |
| 5382403 | orange sneezeweed | Hymenoxys hoopesii | |
| 5382404 | orange sneezeweed | Hymenoxys hoopesii | |
| 5382405 | western pine beetle | Dendroctonus brevicomis | Galleries |
| 5382433 | honeylocust leafhopper | Macropsis fumipennis | Insects and damage to foliage |
| 5382406 | western pine beetle | Dendroctonus brevicomis | Tree mortality adjacent to old burn |
| 5382407 | blackhead fleabane | Erigeron melanocephalus | |
| 5382410 | snow-on-the-mountain | Euphorbia marginata | Flowers and foliage |
| 5382411 | snow-on-the-mountain | Euphorbia marginata | Flowers and foliage |
| 5382412 | fall webworm | Hyphantria cunea | Aerial view of tents and defoliation |
| 5382413 | fall webworm | Hyphantria cunea | Aerial view of defoliation and tents |
| 5382414 | elkweed | Frasera speciosa | |
| 5382415 | white fir | Abies concolor | Frost damage to new foliage |
| 5382416 | white fir | Abies concolor | Frost damage to new foliage |
| 5382417 | white fir | Abies concolor | Frost damage to white fir |
| 5382420 | old man's whiskers | Geum triflorum var. triflorum | |
| 5382421 | old man's whiskers | Geum triflorum var. triflorum | |
| 5382422 | old man's whiskers | Geum triflorum var. triflorum | |
| 5382423 | hail | Aerial view of a summer hail storm in ponderosa pine forest | |
| 5382430 | blue spruce engraver | Ips hunteri | Aerial view of an infestation |
| 5382431 | Rocky Mountain iris | Iris missouriensis | |
| 5382475 | common chokecherry | Prunus virginiana | Flowers and foliage |
| 5382480 | New Mexico locust | Robinia neomexicana | Flowers and foliage |
| 5382434 | wild bergamot | Monarda fistulosa | Flower and foliage |
| 5382435 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality |
| 5382436 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality |
| 5382437 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality |
| 5382438 | mountain pine beetle | Dendroctonus ponderosae | Tree mortality |
| 5382439 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of a thinned stand with heavy damage |
| 5382440 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of thinned stand with heavy damage |
| 5382441 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of heavy tree mortality |
| 5382442 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of fresh attacks in ponderosa pine amid older dead lodgepole pines, Colorado State Forest |
| 5382474 | Parry's primrose | Primula parryi | |
| 5382478 | antelope bitterbrush | Purshia tridentata | Flowers and foliage |
| 5382479 | New Mexico locust | Robinia neomexicana | Flower and foliage |
| 5382482 | black-eyed susan | Rudbeckia hirta | |
| 5382483 | Britton's skullcap | Scutellaria brittonii | |
| 5382481 | delicious raspberry | Rubus deliciosus | |
| 5382486 | desert princesplume | Stanleya pinnata | |
| 5382487 | desert princesplume | Stanleya pinnata | |
| 5382488 | desert princesplume | Stanleya pinnata | |
| 5382489 | red-femured milkweed borer | Tetraopes femoratus | Adult on milkweed leaf. |
| 5382490 | red-femured milkweed borer | Tetraopes femoratus | Adult on milkweed |
| 5382491 | prairie thermopsis | Thermopsis rhombifolia | Flowers and foliage. |
| 5382492 | prairie thermopsis | Thermopsis rhombifolia | Flowers and foliage. |
| 5382500 | western spruce budworm | Choristoneura freemani | Defoliation of Engelmann spruce and subalpine fir |
| 5382501 | western spruce budworm | Choristoneura freemani | Heavy defoliation of Engelmann spruce and subalpine fir |
| 5382502 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation of mixed conifers. |
| 1254027 | western spruce budworm | Choristoneura freemani | |
| 1254028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Egg mass |
| 1254029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva |
| 0017045 | Sirex woodwasp | Sirex noctilio | |
| 0758001 | pandora moth | Coloradia pandora | Two female adults on ponderosa pine |
| 0758002 | pandora moth | Coloradia pandora | Mature larvae feeding on ponderosa pine foliage |
| 0758004 | ponderosa pine dwarf mistletoe | Arceuthobium vaginatum | Dwarf mistletoe infection on ponderosa pine |
| 0758005 | American dwarf mistletoe | Arceuthobium americanum | Female plant with mature fruits |
| 0758006 | aphids | Aphid colony on lupine | |
| 0758007 | aphids | Aphid colony on chrysanthemum | |
| 0758008 | whitespotted sawyer | Monochamus scutellatus | on stem |
| 0758009 | flower longhorn | Stictoleptura canadensis | |
| 0758019 | oak rough bulletgall wasp | Disholcaspis quercusmamma | Galls on branches of bur oak |
| 0758013 | painted lady butterfly | Vanessa cardui | Adult at rest on leaves of apple |
| 0758015 | white-lined sphinx | Hyles lineata | Pair of moths mating |
| 0758016 | tiger moth | Lophocampa ingens | Close up of larval colony |
| 0758017 | black swallowtail | Papilio polyxenes | Mature larva feeding on parsnip foliage |
| 0758020 | cooley spruce gall adelgid | Adelges cooleyi | Green gall with nymphs |
| 0758021 | fir engraver | Scolytus ventralis | Galleries in bark of grand fir |
| 0758022 | western spruce budworm | Choristoneura freemani | Damage to new growth on grand fir |
| 0758023 | gypsy moth | Lymantria dispar | Mature larva on oak |
| 0758024 | gypsy moth | Lymantria dispar | Mature larva killed by a nuclearpolyhedrosis virus |
| 0758025 | gypsy moth | Lymantria dispar | Cluster of larvae killed by a nucleopolyhedrosis virus |
| 0758026 | gypsy moth | Lymantria dispar | Female adults and egg masses |
| 0758027 | gypsy moth | Lymantria dispar | Female adults and egg masses |
| 0758028 | gypsy moth | Lymantria dispar | Female adult and egg mass |
| 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 |
| 0758035 | gypsy moth | Lymantria dispar | Oak mortality due to repeated defoliation by gypsy moth |
| 0758037 | gypsy moth | Lymantria dispar | Color infrared aerial photo taken froma U-2 aircraft showing defoliation by gypsy moth |
| 0758038 | gypsy moth | Lymantria dispar | Color infrared aerial photo taken from a U-2 showing heavy defoliation by gypsy moth |
| 0758040 | gypsy moth | Lymantria dispar | A photo interpreter classifies defoliation caused by gypsy moth on panoramic aerial photos taken from a U-2 and transfers data to a map base. |
| 0758041 | gypsy moth | Lymantria dispar | Transferring polygons of defoliation from aerial photos to a map base. |
| 0758042 | gypsy moth | Lymantria dispar | GIS display of defoliation |
| 0758043 | gypsy moth | Lymantria dispar | GIS display of defloiation |
| 0758045 | gypsy moth | Lymantria dispar | Color infrared aerial photo of defoliation, taken froma U-2 aircraft |
| 0758046 | gypsy moth | Lymantria dispar | Color infrared aerial photo taken from a U-2 aircraft showing defoliation by gypsy moth. Outlined area was sprayed for gypsy moth control. |
| 0758047 | gypsy moth | Lymantria dispar | Color infrared aerial photo taken from a U-2 showing defoliation by gypsy moth. Outlined area was protected by aerial sprays. |
| 0758048 | gypsy moth | Lymantria dispar | GIS displays of defoliation and areas treated with aerial sprays. |
| 0758049 | gypsy moth | Lymantria dispar | Flight lines over eastern US for 1983 U-2 mission for mapping defoliation by gypsy moth |
| 0758060 | gypsy moth | Lymantria dispar | Chuck Dull, USDA Forest Service, annotates color infrared panoramic aerial photos of gypsy moth infestation area in the eastern U.S. |
| 0758061 | gypsy moth | Lymantria dispar | A technician annotates color infrared aerial photos taken from a U-2 aircraft of gypsy moth defoliation. |
| 0758062 | gypsy moth | Lymantria dispar | Test site in South PA, MD and WV where an assessment of ability to map defoliation from SPOT satellite imagery. |
| 0758063 | gypsy moth | Lymantria dispar | SPOT satellite image showing defoliation caused by gypsy moth (dark areas). |
| 0758064 | gypsy moth | Lymantria dispar | Color IR photo taken from a U-2 aircraft of gypsy moth defoliation used as reference data against which to compare SPOT classification of defoliation. |
| 0758056 | gypsy moth | Lymantria dispar | Color infrared aerial photo taken with a U-2 over central PA showing extensive areas of oak mortality due to successive defoliation |
| 0758069 | gypsy moth | Lymantria dispar | Classification of defoliation over South PA, MD and WV test site as determined from SPOT imagery. |
| 0758070 | gypsy moth | Lymantria dispar | Classification of defoliation over South PA, MD and WV test site as determined from color infrared aerial photos taken from a U-2 aircraft |
| 0758071 | oak wilt | Ceratocystis fagacearum | Group of dead Texas live oaks killed by oak wilt |
| 0758072 | Texas live oak | Quercus fusiformis | the host of oak wilt. |
| 0758073 | oak wilt | Ceratocystis fagacearum | Oak killed by oak wilt. |
| 0758074 | oak wilt | Ceratocystis fagacearum | Group of Texas live oaks protected from spread of fungus via root grafts by trenching |
| 0758075 | oak wilt | Ceratocystis fagacearum | Foliage in early stages of wilt by oak wilt disease. |
| 0758076 | oak wilt | Ceratocystis fagacearum | Root grafts on Texas live oak. These are the main means by which oak wilt spreads. |
| 0758077 | oak wilt | Ceratocystis fagacearum | Color infrared aerial photo taken from a U-2 showing patterns of forest vegetation and group of trees killed by oak wilt. |
| 0758081 | oak wilt | Ceratocystis fagacearum | Color infrared panoramic aerial photo taken from a U-2 showing distribution of forest vegetation and trees killed by oak wilt. |
| 0758083 | beech scale | Cryptococcus fagisuga | Beech tree with chlorotic foliage, a symptom of beech bark disease. |
| 0758084 | beech scale | Cryptococcus fagisuga | Close up of scale insect, Cryptococcus fagisuga on beech bark. |
| 0758085 | beech bark disease | Nectria coccinea | A technician compiles data on area infested by beech bark disease following initial stratification from color infrared aerial photos. |
| 0758086 | beech bark disease | Nectria coccinea | A pair of photo interpreters classify intensity of damage caused by beech bark disease on color infrared aerial photos. |
| 0758087 | beech bark disease | Nectria coccinea | Two photo interpreters classify damage caused by beech bark disease on color infrared aerial photos. |
| 0758090 | beech bark disease | Nectria coccinea | Color infrared aerial photo of a portion showing aerially visible symptoms of beech bark disease (light colored crowns) |
| 0758091 | beech bark disease | Nectria coccinea | Color infrared aerial photo of a portion showing aerially visible symptoms of beech bark disease (light colored crowns) |
| 0758092 | beech bark disease | Nectria coccinea | Portion of a color infrared aerial photo showing 2.5 acre grid overlay used to classify damage caused by beech bark disease. |
| 0758093 | beech bark disease | Nectria coccinea | Color aerial photo showing symptoms of beech bark disease (yellow crowns) and black locust leaf miner(brown foliage. |
| 0758094 | beech bark disease | Nectria coccinea | Color infrared aerial photo showing damage caused by beech bark disease (white crowns) and black locust leaf miner (brown foliage). |
| 0758100 | larch | Larix spp. | Section of a color infrared panoramic aerial photo taken showing larch at peak period of fall coloration (white colored crowns). |
| 0758101 | southern pine beetle | Dendroctonus frontalis | Two active multiple tree spots |
| 0758102 | southern pine beetle | Dendroctonus frontalis | Aerial view of a multiple tree spot. |
| 0758103 | southern pine beetle | Dendroctonus frontalis | Aerial view of fading and dead pines in a large spot. |
| 0758104 | southern pine beetle | Dendroctonus frontalis | Aerial view is a large infestation. |
| 0758105 | southern pine beetle | Dendroctonus frontalis | Aerial view of a large infestation in the Four Notch Wilderness candidate study area. |
| 0758106 | southern pine beetle | Dendroctonus frontalis | Aerial view of a large infestation at Four Notch Wilderness Study Area |
| 0758107 | pine engraver | Ips pini | Top kill caused by pine engraver |
| 0758108 | Ips engraver beetles | Ips spp. | Logs at a rail siding provide a source of beetles that have subsequently attacked standing trees. |
| 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. |
| 0758119 | elm spanworm | Ennomos subsignaria | Defoliation on mountain slope. |
| 0758120 | walkingstick | Diapheromera femorata | Aerial view of defoliation of hardwoods at Winding Stair Mountain |
| 0758121 | walkingstick | Diapheromera femorata | Aerial view of defoliation of hardwood forests at Winding Stair Mountain |
| 0758122 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. Nine Mile Creek |
| 0758123 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. Nine Mile Creek |
| 0758124 | mountain pine beetle | Dendroctonus ponderosae | Color aerial photo showing effect of stand density on occurrence of beetle attack. Nine Mile Creek |
| 0758125 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Black Hills N.F., SD. This photo shows mortality caused by two generations of this insect. The yellow-green crown were attacked the previous year and the reddish brown crowns were attacked two years ago. |
| 0758126 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. |
| 0758127 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality |
| 0758128 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. |
| 0758129 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. Note, this scene shows mortality caused by two generations of beetles. The yellow-green crowns were attacked one year ago and the reddish brown crowns were attacked two years ago. |
| 0758130 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of severe tree mortality in lodgepole pine |
| 0758131 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of severe tree mortality. The line at photo center is the US/Canada border. This photo illustrates that insects do not respect political boundaries. |
| 0758132 | mountain pine beetle | Dendroctonus ponderosae | Heavy infestation, Dark red crowns are lodgepole pines and yellow-orange crowns are ponderosa pines. |
| 0758133 | mountain pine beetle | Dendroctonus ponderosae | Heavy infestation, Dark red colored crowns are lodgepole pine and the yellow-orange crowns are ponderosa pines. |
| 0758134 | California fivespined ips | Ips paraconfusus | Trees with top kill from Ips attack, Rubicon River drainage. |
| 0758135 | California fivespined ips | Ips paraconfusus | Top kill in large ponderosa pines |
| 0758136 | bark beetles | Aerial view of a bark beetle spot in ponderosa pine. The spot is the result of the combined attacks of Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area | |
| 0758137 | bark beetles | Aerial view of a barkbeetle infestation, The infestation is the result of a combined attack by Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area | |
| 0758138 | bark beetles | Aerial of scattered tree mortality in ponderosa pine. The infestations are the result of combined attacks of Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area | |
| 0758139 | bark beetles | Aerial view of tree mortality. The infestations are the result of a combined attack of Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage area | |
| 0758140 | bark beetles | Aerial view of tree mortality. The attacks are a combination of Ips paraconfusus and Dendroctonus brevicomis. | |
| 0758141 | bark beetles | Trees killed by a combination of Ips paraconfusus and Dendroctonus brevicomis at Rubicon River drainage | |
| 0758142 | bark beetles | Aerial view of tree mortality caused by a combination of Ips paraconfusus and Dendroctonus brevicomis. | |
| 0758143 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality, North Fork Clearwater River |
| 0758144 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality, North Fork Clearwater River |
| 0758145 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality, North Fork Clearwater River |
| 0758146 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality caused by Douglas-fir beetle, North Fork Clearwater River |
| 0758147 | Douglas-fir beetle | Dendroctonus pseudotsugae | Tree mortality |
| 0758148 | Douglas-fir beetle | Dendroctonus pseudotsugae | Multiple tree spot; South Fork Clearwater River |
| 0758149 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality |
| 0758150 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality |
| 1254012 | smaller European elm bark beetle | Scolytus multistriatus | Galleries, Platt NP, OK |
| 1254013 | whitespotted sawyer | Monochamus scutellatus | Adult on bark, Medicine Bow NF, WY |
| 1254014 | sawyer beetles | Monochamus spp. | Mature larva |
| 1254015 | blackhorned pine borer | Callidium antennatum hesperum | |
| 1254016 | blackhorned pine borer | Callidium antennatum hesperum | Adult and exit hole |
| 1254017 | flatheaded or metallic wood borer | Mature larva | |
| 1254024 | western spruce budworm | Choristoneura freemani | Defoliation on young grand fir, Mt. Hood NF, OR |
| 1254019 | flatheaded or metallic wood borer | Adult on limb, Ochoco NF, OR. | |
| 1254020 | flatheaded or metallic wood borer | ||
| 1254021 | bronze birch borer | Agrilus anxius | Galleries in cambium layer of an ornamental birch, Fort Collins, CO. |
| 1254025 | western spruce budworm | Choristoneura freemani | Young larva in shoot |
| 5382503 | western tent caterpillar | Malacosoma californicum | Heavy defoliation on bitterbrush |
| 5382504 | western tent caterpillar | Malacosoma californicum | Heavy defoliation |
| 5382505 | western tent caterpillar | Malacosoma californicum | Defoliation of aspen |
| 5382506 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 5382507 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 5382497 | western balsam bark beetle | Dryocoetes confusus | Aerial view of tree mortality |
| 5382444 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of attacks in both lodgepole pines (red-orange) and ponderosa pines (yellow) |
| 5382445 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality in ponderosa and lodgepole pines, near Glen Haven |
| 5382446 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality. Note differences in attack density by tree size |
| 5382447 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Colorado State Forest |
| 5382448 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Tennessee Mountain |
| 5382449 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Tennessee Mountain |
| 5382450 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of a large spot, Woodland Mountain |
| 5382451 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of a large spot, Woodland Mountain |
| 5382452 | fire | Aerial view of the Nash ranch fire | |
| 5382453 | tufted evening-primrose | Oenothera cespitosa | Flower and foliage |
| 0758227 | forest tent caterpillar | Malacosoma disstria | Mature larvae on stem of a water tupelo |
| 2167055 | annual pricklepoppy | Argemone polyanthemos | |
| 2167054 | pricklypoppy | Argemone spp. | |
| 1510052 | balsam woolly adelgid | Adelges piceae | Ground application of chemical pesticide for control of balsam woolly adelgid along roadside zone, Mt. Mitchell State Park, NC |
| 2167056 | annual pricklepoppy | Argemone polyanthemos | |
| 2167057 | annual pricklepoppy | Argemone polyanthemos | |
| 2167058 | pricklypoppy | Argemone spp. | |
| 0758193 | fake plants | Color photo of a hanging basket of plastic vegetation against a backdrop of live vegetation | |
| 0758194 | fake plants | Color IR photo of a hanging basket of plastic vegetation against a backdrop of live vegetation. Note color difference between plastic and live foliage. | |
| 0758195 | unknown chameleon | Color photo of a green chamelion against a backdrop of green foliage | |
| 0758196 | unknown chameleon | Color infrared photo of a green chamelion against a backdrop of green foliage. Note difference in color between the chamelion and the foliage. This illustrates the camoflage detection capacity of color infrared film. | |
| 0758197 | loblolly pine sawfly | Neodiprion taedae linearis | Color aerial photo of mixed pine and hardwood forests. A portion of the pine forest is defoliated by a pine sawfly, Neodiprion taedae linearis. |
| 0758234 | dam | Dworsak Dam, North Fork, Clearwater River, ID | |
| 0758200 | Douglas-fir tussock moth | Orgyia pseudotsugata | Color infrared oblique aerial photo of a forested area infested by Douglas-fir tussock moth. A portion of the area near photo center has been treated with nuclearpolyhedrosis virus for tussock moth control. |
| 1254079 | vandalism | Toilet papering of landscape tree | |
| 2134025 | snout beetles or weevils | Heavy attack of ambrosia beetle in down tree | |
| 5136051 | slendertube skyrocket | Ipomopsis tenuituba | Blossoms, near Nederland, Colorado |
| 5136052 | slendertube skyrocket | Ipomopsis tenuituba | Flowers, Roosevelt NF, CO |
| 5176078 | flatheaded or metallic wood borer | Twig mortality caused by a twig borer of the family Buprestidae on coigue, Nothofagus dombeyi, VIII Region, Chile | |
| 5345097 | sudden aspen decline | Tree mortality in three aspen stands believed due to sudden aspen decline (causes unknown), near Jemez Springs, NM | |
| 5345098 | sudden aspen decline | ||
| 5345099 | unknown | Aerial view of defoliation of aspen, cause undetermined. Picuris Mtn, Carson NF, NM, July 2007 | |
| 5345100 | unknown | Aerial view of aspen defoliation, cause undetermined. Santa Fe, NF, NM, July 2007 | |
| 5346001 | aspen decline | Top dieback of aspen, probably due to several successive years of defoliation by western tent caterpillar, Carson NF, NM, July 2007 | |
| 5346079 | twinberry honeysuckle | Lonicera involucrata var. involucrata | Blossom, Carson NF, NM, July 2007 |
| 5347036 | whites and sulfur butterfiles | Sulphur butterfly; species unknown; Adult on thistle, Blue Ridge Parkway, NC, October 2008 | |
| 1248033 | twig beetles | Pityophthorus spp. | Damage to twigs caused by a pinyon pine twig beetle near Durango, CO |
| 1254001 | mountain pine beetle | Dendroctonus ponderosae | Pitch tubes on bark surface |
| 2122030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Egg mass on pupal case, near Aspen Park, CO |
| 2122031 | Douglas-fir tussock moth | Orgyia pseudotsugata | Egg mass on pupal case on ponderosa pine, near Aspen park, CO, December 2005 |
| 5346002 | wind | Aerial view of blowdown and wind breakage from a June 7, 2007 storm, Wet Mountains, CO, July 2007 | |
| 5346003 | wind | Aerial view of spruce blowdown, Pecos Wilderness, Santa Fe, NF, NM, July 2007 | |
| 5346004 | wind | Blowdown; Patch of blowdown from a June 7 storm, Wet Mountains, CO, July 2007 | |
| 5346005 | large aspen tortrix | Choristoneura conflictana | Rolled leaf containing larva, Culebra Range, CO, July 2007 |
| 5346006 | wind | Aerial view of aspen stand defoliated by high winds, Wet Mountains, CO, July 2007 | |
| 5346007 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007 |
| 5346008 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007 |
| 5346009 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007 |
| 5346010 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007 |
| 5346011 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of heavy defoliation, Santa Clara Canyon, Santa Clara Indian Reservation, NM, July 2007 |
| 5346012 | fir engraver | Scolytus ventralis | Aerial view of tree mortality, Carson National Forest, NM, July 2007 |
| 5346013 | hail | Foliar damage to a stand of gambel oak, La Veta Pass, Culebra Range, CO | |
| 5346014 | hail | Damage to branches fromhail, La Veta Pass, Culebra Range, CO, July 2007 | |
| 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 |
| 5346018 | pine engraver | Ips pini | Aerial view of tree mortality following fire damage, Carson NF, NM, July 2007 |
| 5346019 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Berthoud Pass, CO, July 2007 |
| 5346020 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Eldora Ski Area, Boulder Co, CO, August 2007 |
| 5346021 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Boulder Co, CO, August 2007 |
| 5346022 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Boulder Co, CO, August 2007 |
| 5346023 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Sange de Cristo Range, CO, July 2007 |
| 5346024 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Bear Lake, Rocky Mountain National Park, CO, August 2007 |
| 5346025 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Bear Lake, Rocky Mountain NP, CO, August 2007 |
| 5346026 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Colorado State Forest, CO, August 2007 |
| 5346027 | mountain pine beetle | Dendroctonus ponderosae | Tree mortality near Long Draw Reservior,Roosevelt NF, CO, August 2007 |
| 5346028 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Tennessee Mtn, Boulder Co, CO, August 2007 |
| 5346029 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Tennessee Mtn, Boulder Co, CO, August 2007 |
| 5346030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Heavy defoliation, Douglas Co, CO, August 2007 |
| 5346031 | ponderosa pine | Pinus ponderosa | Mature forest, Carson NF,NM,July 2007 |
| 5346032 | red belt abiotic damage | Aerial view of damage, La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346033 | red belt abiotic damage | Aerial view of damage near La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346034 | red belt abiotic damage | La Veta Pass, Culebra Range, CO, July 2007 | |
| 5346035 | fir engraver | Scolytus ventralis | Aerial view of scattered tree mortality, Wet Mountains, Colorado, July 2007 |
| 5346036 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality, Rawah Range, CO, August 2007 |
| 5346037 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality caused by spruce beetle, Rawah Range, CO, August 2007 |
| 5346038 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality caused by spruce beetle, Rawah Range, CO, August 2007 |
| 5346039 | spruce beetle | Dendroctonus rufipennis | Aerially view of old tree mortality, Rawah Range, Colorado, August 2007 |
| 5346040 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation, near La Veta Pass, Culebra Range, CO, July 2007 |
| 5346041 | western spruce budworm | Choristoneura freemani | Close up of bud damage and defoliation of new growth |
| 5346042 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation of Douglas-fir and white fir, Carson NF, NM, July 2007 |
| 5346043 | western spruce budworm | Choristoneura freemani | Heavy defoliation of Subalpine fir and Engelmann spruce, Carson NF, July 2007 |
| 5346044 | western tent caterpillar | Malacosoma californicum | Complete defoliation of aspen, Culebra Range, CO, July 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 |
| 5346048 | western tent caterpillar | Malacosoma californicum | Defoliaton of aspen, Mousca Pass, Sangre de Cristo Range, Colorado, 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 |
| 5346053 | American pasqueflower | Pulsatilla patens | Blossoms, Red Feather Lakes, Larimer Co, CO, 2007 |
| 5346054 | American pasqueflower | Pulsatilla patens | Blossoms, Red Feather Lakes, Larimer County, CO, April 2007 |
| 5346055 | American pasqueflower | Pulsatilla patens | Blossoms, Red Feather Lakes, Larimer Co, CO, April 2007 |
| 5346056 | Colorado blue columbine | Aquilegia caerulea | Blossom, San Isabel National Forest, CO, July 2007 |
| 5346057 | Colorado blue columbine | Aquilegia caerulea | Blossoms, near Chucharas Pass, CO, July 2007 |
| 5346058 | hairy clematis | Clematis hirsutissima | Blossom, San Isabel NF, CO, July 2007 |
| 5346059 | hairy clematis | Clematis hirsutissima | Blossom, San Isabel NF, CO, July 2007 |
| 5346060 | Rocky Mountain beeplant | Cleome serrulata | Blossom, Phantom Canyon, near Florence, CO, July 2007 |
| 5346061 | Rocky Mountain beeplant | Cleome serrulata | Blossoms, Phantom Canyon near Florence, CO, July 2007 |
| 5346062 | darkthroat shootingstar | Dodecatheon pulchellum | Blossoms, San Isabel NF, CO |
| 5346063 | sanddune wallflower | Erysimum capitatum | Blossoms, San Isabel NF, CO, July 2007 |
| 5346064 | elkweed | Frasera speciosa | Blossoms, Cucharas Pass, Spanish Peaks, CO, July 2007 |
| 5346065 | scarlet gilia | Ipomopsis aggregata | Blossoms, San Isabel NF, CO, July 2007 |
| 5346066 | Rocky Mountain iris | Iris missouriensis | Blossom, near Kenosha Pass, CO, July 2007 |
| 5346067 | Rocky Mountain iris | Iris missouriensis | Blossom, Near Kenosha Pass, CO, July 2007 |
| 5346068 | walkingstick cholla | Opuntia imbricata | Blossom, Phantom Canyon near Florence, CO, July 2007 |
| 5346069 | walkingstick cholla | Opuntia imbricata | Blossom, Phantom Canyon near Florence, CO, July 2007 |
| 5346070 | oneside penstemon | Penstemon unilateralis | Blossoms, San Isabel NF, CO, July 2007 |
| 5346071 | New Mexico locust | Robinia neomexicana | Blossom, La Vita, CO, July 2007 |
| 5346072 | Woods' rose | Rosa woodsii | Blossom, San Isabel NF, CO, July 2007 |
| 5346073 | black-eyed susan | Rudbeckia hirta | Blossom, southern CO, July 2007 |
| 5346074 | nodding onion | Allium cernuum | Blossoms, Carson NF, NM, July 2007 |
| 5346075 | alpine leafybract aster | Symphyotrichum foliaceum var. apricum | Blossoms, Carson NF, NM, July 2007 |
| 5346076 | Gunnison's mariposa lily | Calochortus gunnisonii | Blossom, Carson NF, NM, July 2007 |
| 5346077 | harebell | Campanula rotundifolia | Blossoms, Carson NF, NM, July 2007 |
| 5346078 | giant red Indian paintbrush | Castilleja miniata | Blossoms, Carson NF, July 2007 |
| 5346080 | orange sneezeweed | Hymenoxys hoopesii | Blossoms, Carson NF, NM, July 2007 |
| 5346081 | scarlet gilia | Ipomopsis aggregata | Blossoms, Carson NF, NM, July 2007 |
| 5346082 | Douglas-fir tussock moth | Orgyia pseudotsugata | Left to Right: Female adult, egg-mass and pupal cases, Douglas Co,CO, August 2007 |
| 5346083 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva |
| 5346084 | Douglas-fir tussock moth | Orgyia pseudotsugata | |
| 5346085 | Douglas-fir tussock moth | Orgyia pseudotsugata | |
| 5346086 | Douglas-fir tussock moth | Orgyia pseudotsugata | |
| 5346087 | Douglas-fir tussock moth | Orgyia pseudotsugata | Coccons on Douglas fir branches, Douglas Co, CO, August 2007 |
| 5346088 | Douglas-fir tussock moth | Orgyia pseudotsugata | Cocoons on Douglas-fir branches, Douglas Co, CO, August 2007 |
| 5346089 | western tent caterpillar | Malacosoma californicum | Larvae and tent on quaking aspen, San Isabel National Forest CO, July 2007 |
| 5346090 | western tent caterpillar | Malacosoma californicum | Cocoons on aspen, San Isabel National Forest, CO, July 2007 |
| 5346091 | western tent caterpillar | Malacosoma californicum | Cocoons on aspen, San Isabel National Forest, CO, July 2007 |
| 5346092 | western tent caterpillar | Malacosoma californicum | Cocoons on willow, San Isabel NF, CO, July 2007 |
| 5346093 | western tent caterpillar | Malacosoma californicum | Mature larvae on aspen twig, San Isabel National Forest, CO, July 2007 |
| 5346094 | western tent caterpillar | Malacosoma californicum | Mature larva on old tent, San Isabel National Forest, CO, July 2007 |
| 5347024 | locust borer | Megacyllene robiniae | Adult on goldenrod, Shenandoah NP, VA, September 2007 |
| 5346095 | western tent caterpillar | Malacosoma californicum | Larvae on aspen twig, San Isabel NF, CO, July 2007 |
| 5346096 | western tent caterpillar | Malacosoma californicum | Larvae on aspen twig, San Isabel National Forest, CO, July 2007 |
| 5346097 | western tent caterpillar | Malacosoma californicum | Mature larva on aspen bark, San Isabel NF, CO, July 2007 |
| 5346099 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5346100 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5347001 | polyphemus moth | Antheraea polyphemus | Mature larva, Douglas Co, CO, August 2007 |
| 5347002 | white-lined sphinx | Hyles lineata | Adult in flight with proboscis extended, Fort Collins, CO, July 2007 |
| 5347003 | white-lined sphinx | Hyles lineata | Adult in flight with mouthparts extended, Fort Collins, CO, July 2007 |
| 5347004 | white-lined sphinx | Hyles lineata | Adult in flight, Fort Collins, CO, July 2007 |
| 5347005 | white-lined sphinx | Hyles lineata | Adult in flight, Fort Collins, CO, July 2007 |
| 5347006 | soldier beetles | Chauliognathus spp. | Adult on rabbit brush, Larimer County, CO, September 2007 |
| 5347007 | soldier beetles | Chauliognathus spp. | Adult beetle on rabbit brush, Larimer Co, CO, September 2007 |
| 5347008 | soldier beetles | Chauliognathus spp. | Adult on rabbit brush, Larimer Co, CO. |
| 5347009 | common buckeye | Junonia coenia | Adult, Blue Ridge Parkway, NC, September 2007 |
| 5347010 | monarch butterfly | Danaus plexippus | Adult on thistle, Blue Ridge Parkway, NC, September 2007 |
| 5347011 | monarch butterfly | Danaus plexippus | Adult on thisle, Blue Ridge Parkway, NC, September 2007 |
| 5347012 | monarch butterfly | Danaus plexippus | Adult on thistle, Blue Ridge Parkway, NC, September 2007 |
| 5347013 | monarch butterfly | Danaus plexippus | Mature larva on milkweed, Shenadoah NP, VA, October 2007 |
| 5347014 | monarch butterfly | Danaus plexippus | Mature larva on milkweed, Shenandoah NP, VA, October 2007 |
| 5347015 | monarch butterfly | Danaus plexippus | Pupa on milkweed, Big Meadows, Shenandoah NP,VA, September 2007 |
| 5347016 | eastern tiger swallowtail | Papilio glaucus | Adult on thistle, Blue Ridge Parkway, NC, October 2007 |
| 5347017 | eastern tiger swallowtail | Papilio glaucus | Adult on thistle, Blue Ridge Parkway, NC, September 2007 |
| 5347018 | police car moth | Gnophaela vermiculata | Adult on sneezeweed, Carson NF, NM, July 2007 |
| 5347019 | police car moth | Gnophaela vermiculata | Adult on sneezweed, Carson NF, NM, July 2007 |
| 5347020 | police car moth | Gnophaela vermiculata | Larva on foliage of Abies lasiocarpa, Wasatch NF, UT |
| 5347021 | police car moth | Gnophaela vermiculata | Larva on foliage of bluebell, Wasatch NF, Utah, June 2007 |
| 5347022 | gulf fritillary | Agraulis vanillae | Adult, Clingman's Dome, Great Smoky Mountains NP, TN, September 2007 |
| 5347023 | locust borer | Megacyllene robiniae | Adult on goldenrod, Shenandoah National Park, VA, September 2007 |
| 5347025 | locust borer | Megacyllene robiniae | Adult on goldenrod, Shenandoah NP, VA, September 2007 |
| 5347026 | locust borer | Megacyllene robiniae | Adult on goldenrod, Linville Gorge, NC, October 2007 |
| 5347027 | Geometrid moth | Nemoria diamesa | Adult moth, San Isabel National Forest, CO, July 2007 |
| 5347028 | Geometrid moth | Nemoria diamesa | Adult moth, San Isabel National Forest, CO, July 2007 |
| 5347029 | large milkweed bug | Oncopeltus fasciatus | Adult, Larimer Co, CO, September 2007 |
| 5347030 | large milkweed bug | Oncopeltus fasciatus | Adult, Larimer Co, CO, September 2007 |
| 5347031 | large milkweed bug | Oncopeltus fasciatus | Adults on milkweed pod, Blue Ridge Parkway, VA, September 2007 |
| 5347032 | large milkweed bug | Oncopeltus fasciatus | Nymphs on milkweed seed pod, Blue Ridge Parkway, VA, September, 2007 |
| 5347037 | painted lady butterfly | Vanessa cardui | Adult on aster, Big Meadows, Shenandoah NP, VA, October 2008 |
| 5347038 | painted lady butterfly | Vanessa cardui | Adult on aster. Larvae feed on many host plants. Big Meadows, Shenandoah NP, VA, october 2007 |
| 1428117 | fall color | cottonwoods at peak of fall color, Cache la Poudre River. | |
| 0758233 | balsam woolly adelgid | Adelges piceae | Oblique color infrared aerial photo of tree mortality caused by balsam woolly adelgid, Roan Mountain, NC and TN. |
| 1428088 | mountain pine beetle | Dendroctonus ponderosae | Fresh fading ponderosa pine due to previous year's mountain pine beetle attack. |
| 1428089 | mountain pine beetle | Dendroctonus ponderosae | Fresh fading pines due to previous year's beetle attack. |
| 1428090 | Russian-olive | Elaeagnus angustifolia | Grove of invasive Russian olive trees in pasture. |
| 0758232 | balsam woolly adelgid | Adelges piceae | Oblique color aerial photo of trees dying as a result of balsam woolly adlegid infestation, Roan Mountain, NC and TN. |
| 0758235 | Douglas-fir beetle | Dendroctonus pseudotsugae | Oblique color aerial photo of tree mortality |
| 0758236 | Douglas-fir beetle | Dendroctonus pseudotsugae | Oblique color aerial photo of a large infestation. |
| 0758237 | Douglas-fir beetle | Dendroctonus pseudotsugae | Oblique aerial photo of a large infestation. |
| 0758238 | Douglas-fir beetle | Dendroctonus pseudotsugae | Oblique aerial photo of tree mortality. |
| 0758239 | Douglas-fir beetle | Dendroctonus pseudotsugae | Trees killed by Douglas-fir beetle. |
| 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 |
| 0758199 | Douglas-fir tussock moth | Orgyia pseudotsugata | Color oblique aerial photo of a Douglas-fir forest infested by Douglas-fir tussock moth. A portion of this forest has been treated with a nuclearpolyhedrosis virus for control of this insect. |
| 0758247 | pandora moth | Coloradia pandora | Heavy defoliation of ponderosa pine |
| 0758248 | pandora moth | Coloradia pandora | Heavy defoliation of ponderosa pine forests |
| 0758254 | spruce beetle | Dendroctonus rufipennis | Color infrared aerial photo of tree mortality |
| 0758255 | mountain pine beetle | Dendroctonus ponderosae | Oblique color infrared aerial photo of tree mortality |
| 0758256 | mountain pine beetle | Dendroctonus ponderosae | Oblique color infrared aerial photo of mountain pine beetle caused tree mortality |
| 0758257 | mountain pine beetle | Dendroctonus ponderosae | Color vertical aerial photo showing benefits of thinning to reduce incidence of mountain pine beetle attack. |
| 0758201 | grape | Vitis spp. | Color infrared aerial photo of a vineyard depicting several disease centers and the effects of soils of different water holding capacities on vine health. |
| 0758202 | grape | Vitis spp. | Color infrared aerial photo of a vineyard showing several centers of disease activity and the effects of soils of varying waterholding capacities on vineyard health |
| 0758203 | grape | Vitis spp. | Color aerial photo of a vineyard showing location of a disease center. |
| 0758204 | grape | Vitis spp. | Color infrared aerial photo of a vineyard showing location of a disease center. |
| 0758205 | rice | Oryza sativa | Color oblique aerial photo of a rice field showing results of a poor aerial application of fertilizer. |
| 0758206 | rice | Oryza sativa | Color infrared oblique aerial photo of a rice field showing effects of a poor quality aerial application of fertilizer. |
| 0758207 | rice | Oryza sativa | Oblique color aerial photo showing a rice field. Banding effect is the result of a poor quality aerial application of fertilizer. |
| 0758208 | rice | Oryza sativa | Oblique color infrared aerial photo of a rice field. Banding effect is due to a poor quality aerial application of fertilizer. |
| 0758209 | rice | Oryza sativa | Color oblique aerial photo of a rice field showing plant response due to differences in the moisture holding capacity of soils. |
| 0758210 | rice | Oryza sativa | Color infrared oblique aerial photo of a rice field showing plant response to differences in the water holding capacities of soils. |
| 0758215 | southern pine beetle | Dendroctonus frontalis | Color aerial photo of a large infestation |
| 0758216 | southern pine beetle | Dendroctonus frontalis | Vertical color infrared aerial photo with a southern pine beetle infestation |
| 0758217 | southern pine beetle | Dendroctonus frontalis | Vertical color infrared aerial photo showing placment of a 50 acre sample plot and stratification of host type for survey designed to estimate losses caused by southern pine beetle |
| 0758219 | southern pine beetle | Dendroctonus frontalis | Vertical color infrared aerial photo showing a large southern pine beetle infestation |
| 0758220 | southern pine beetle | Dendroctonus frontalis | Vertical color infrared aerial photo of a large southern pine beetle infestation (yellow-green colored crowns at photo center) |
| 0758221 | southern pine beetle | Dendroctonus frontalis | Color infrared aerial photo of a large southern pine beetle infestation (yellow-green colored crowns). |
| 0758222 | southern pine beetle | Dendroctonus frontalis | Map of the Oak Ridge Atomic Energy Reservation, TN showing placement of aerial photo plots for estimating tree mortality caused by this insect. |
| 0758223 | southern pine beetle | Dendroctonus frontalis | Map of the Francis Marion National Forest, SC showing placment of aerial photo sample plots used to estimate level of tree mortality. |
| 0758224 | southern pine beetle | Dendroctonus frontalis | Bob Bassett, USDA Forest Service, annotates color infrared aerial photos for assessment of a southern pine beetle outbreak. |
| 0758225 | southern pine beetle | Dendroctonus frontalis | Emmett Wilson and Bob Bassett, USDA Forest Service, annotate color infrared aerial photos for assessment of southern pine beetle outbreaks. |
| 0758226 | forest tent caterpillar | Malacosoma disstria | Aerial view of heavy defoliation |
| 0758179 | citrus | Citrus spp. | Oblique color infrared aerial photo of a citrus grove showing several occurrences of citrus disease |
| 0758181 | pine | Pinus spp. | Color aerial photo of a pine plantation with severe chlorosis. |
| 0758182 | pine | Pinus spp. | Color infrared aerial photo of a pine plantation with severe chlorosis. |
| 0758187 | pine | Pinus spp. | Color photo of a chlorotic and healthy pine. |
| 0758188 | pine | Pinus spp. | Color infrared photo of a chlortic and healthy pine |
| 0758189 | pine | Pinus spp. | Color infrared photo of pines in various stages of decline and dying. |
| 0758190 | pine | Pinus spp. | Color photo of pines in various stages of decline and dying. |
| 0758191 | shortleaf pine | Pinus echinata | Color photo of dead and healthy shortleaf pines. |
| 0758192 | shortleaf pine | Pinus echinata | Color infrared photo of dead and healthy shortleaf pines. |
| 5176082 | rivers and streams | Upper Biobio River, VIII Region, Chile | |
| 1248035 | iron deficiency | Aerial view of urban street trees with symtoms of iron chlorosis - Loveland, CO | |
| 5175085 | button mangrove | Conocarpus erectus | Large, windblown tree, Bonaire |
| 5175087 | white manjack | Cordia dentata | |
| 5175093 | roble beech | Nothofagus obliqua | Declining tree in pasture, IX Region, Chile |
| 5176003 | metalic wood-boring beetle | Epistomentis pictus | Adult on bark of host tree |
| 2167080 | western tent caterpillar | Malacosoma californicum | Larvae and tent, Larimer Co, CO. |
| 5136053 | yellow toadflax | Linaria vulgaris | Routt NF, CO |
| 5136054 | yellow toadflax | Linaria vulgaris | Field of flowers, Routt NF, CO |
| 5136055 | yellow toadflax | Linaria vulgaris | |
| 5136056 | twinberry honeysuckle | Lonicera involucrata | Seeds and foliage, Roosevelt NF, CO |
| 5136057 | twinberry honeysuckle | Lonicera involucrata | Seeds and foliage, Roosevelt National Forest, CO |
| 5136058 | lodgepole lupine | Lupinus parviflorus | Flowers and foliage, |
| 5136059 | lodgepole lupine | Lupinus parviflorus | Routt NF, CO |
| 5136060 | lupine | Lupinus spp. | Roosevelt NF, CO |
| 5136061 | tall fringed bluebells | Mertensia ciliata | Flowers and foliage, Roosevelt NF, CO |
| 5136062 | wild bergamot | Monarda fistulosa | Flower and foliage, Roosevelt NF, CO |
| 5136063 | wild bergamot | Monarda fistulosa | Flower and foliage, Roosevelt NF, CO |
| 5136064 | wild bergamot | Monarda fistulosa | Flower and foliage, Roosevelt NF, CO |
| 5136066 | Fendler's groundsel | Packera fendleri | Flower and foliage, Roosevelt NF, CO |
| 5136067 | elephanthead lousewort | Pedicularis groenlandica | Roosevelt NF, CO |
| 5136068 | Whipple's penstemon | Penstemon whippleanus | Flowers and foliage, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136069 | Whipple's penstemon | Penstemon whippleanus | Trail Ridge Road, Roacky Mountain National Park, CO |
| 5136070 | Parry's gentian | Gentiana parryi | Roosevelt NF, CO |
| 5136071 | flatbud pricklypoppy | Argemone munita | Flower and foliage, Fort Collins, CO |
| 5136072 | Parry's primrose | Primula parryi | Flowers and foliage, Milner Pass, Rocky Mountain National Park, CO |
| 5136073 | white marsh marigold | Caltha leptosepala ssp. leptosepala var. leptosepala | Flowers, Milner Pass, Rocky Mountain National Park, CO |
| 5136074 | woodland pinedrops | Pterospora andromedea | Rossevelt NF, CO |
| 5136075 | woodland pinedrops | Pterospora andromedea | Rossevelt NF, CO |
| 5136076 | woodland pinedrops | Pterospora andromedea | Rossevelt NF, CO |
| 5136077 | upright prairie coneflower | Ratibida columnifera | Flowers, near Colorado Springs, CO |
| 5136078 | upright prairie coneflower | Ratibida columnifera | Flowers, near Colorado Springs, CO |
| 5136079 | upright prairie coneflower | Ratibida columnifera | Flowers, near Colorado Springs, CO |
| 5136080 | cutleaf coneflower | Rudbeckia laciniata var. ampla | Flowers, near Colorado Springs, CO |
| 5136081 | black-eyed susan | Rudbeckia hirta | Flowers and foliage, near Aspen Park, CO |
| 5136082 | black-eyed susan | Rudbeckia hirta | Flowers and foliage, near Aspen Park, CO |
| 5136083 | graylocks four-nerve daisy | Tetraneuris grandiflora | Flowers and foliage, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136084 | moss campion | Silene acaulis var. subacaulescens | Flowers and foliage, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136085 | moss campion | Silene acaulis var. subacaulescens | Flowers and foliage, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136086 | moss campion | Silene acaulis var. subacaulescens | Flowers and foliage, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136087 | felwort | Swertia perennis | Flowers and foliage, Roosevelt NF, CO |
| 5136088 | hoary Townsend daisy | Townsendia incana | Foliage and flowers, Larimer CO, CO |
| 5136089 | dwarf clover | Trifolium nanum | Foliage and flowers, Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136090 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca Pass, Sangre de Cristo Range, CO |
| 5136091 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Sangre de Cristo Range, CO |
| 5136092 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, North Taylor Creek, Sangre de Cristo Range, CO |
| 5136093 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, North Taylor Creek, Sangre di Cristo Range, CO |
| 5136094 | western tent caterpillar | Malacosoma californicum | Egg mass, Taos NM |
| 5136097 | fir engraver | Scolytus ventralis | Aerial view of damage, Carson NF, NM |
| 5136098 | fir engraver | Scolytus ventralis | Aerial view of damage, Carson NF, NM |
| 5136099 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca Pass, Sangre de Cristo Range, CO |
| 5136100 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca Pass, Sangre de Cristo Range, CO |
| 5137001 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca pass, Sangre de Cristo Range, CO |
| 5137002 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca Pass, Sangre de Cristo Range, CO |
| 5137003 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Mosca Pass, Sangre de Cristo Range, CO. |
| 5137004 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation, Sangre de Cristo Range, CO |
| 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 | |
| 5135038 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of Douglas-fir beetle infestation, Wet Mountains, CO |
| 5135039 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view, Wet Mountains, CO |
| 5135040 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of infestation, Wet Mountains, CO |
| 5135042 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of infestation, Wet Mountains, CO |
| 5135043 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation, Aspen Park, CO |
| 5135044 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation, Aspen Park, CO |
| 5135045 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation, Aspen Park, CO, 2006 |
| 5135046 | spruce beetle | Dendroctonus rufipennis | Aerial view of defoliation, Rawah Range, Roosevelt, NF, CO |
| 5135047 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt NF, CO |
| 5135048 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt National Forest, CO |
| 5135049 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt NF, CO. |
| 5135050 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt NF, CO |
| 5135051 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt NF, CO |
| 5135052 | spruce beetle | Dendroctonus rufipennis | Aerial view of damage, Rawah Range, Roosevelt NF, CO |
| 5135053 | pinyon ips | Ips confusus | Aerial survey 2006; Aerial view of damage, near Canon City, CO |
| 5135054 | pinyon ips | Ips confusus | Aerial survey 2006; Aerial view of damage, near Canon City CO, 2006 |
| 5135055 | pinyon ips | Ips confusus | Aerial survey in 2006.; Aerial view of damage near Canon City, CO, 2006 |
| 5135056 | pinyon ips | Ips confusus | Aerial survey in 2006.; Aerial view of damage, near Canon City, CO, 2006 |
| 5135057 | pinyon ips | Ips confusus | Aerial survey from 2006.; Aerial view of damage, near Canon City, CO, 2006 |
| 5135058 | Ips engraver beetles | Ips spp. | Aerial survey from 2006.; Aerial view of scattered tree mortality adjecent to Picnic Rock Fire west of Fort Collins, CO |
| 5135059 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality adjacent to Picnic Rock Fire west of Fort Collins, CO |
| 5135060 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality adjacent to Picnic Rock Fire west of Fort Collins, CO |
| 5135061 | Ips engraver beetles | Ips spp. | Aerial view of scattered tree mortality adjacent to Picnic Rock Fire west of Fort Collins, CO |
| 5135062 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135063 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135064 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135065 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135066 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135067 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135068 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135069 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135070 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135071 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of damage near Berthoud Pass, CO, 2006 |
| 5135072 | western balsam bark beetle | Dryocoetes confusus | Aerial view of tree mortality, Bull Mountain, Larimer CO, CO, 2006 |
| 5135073 | western balsam bark beetle | Dryocoetes confusus | Aerial view of tree mortality, Bull Mountain, Larimer Co, CO |
| 5135074 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation, North Platte River, CO, 2006 |
| 5135075 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation, North Platte River, CO, 2006 |
| 5135076 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO, 2006 |
| 5135077 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO |
| 5135078 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO |
| 5135079 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO |
| 5135080 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO |
| 5135081 | Douglas-fir tussock moth | Orgyia pseudotsugata | Defoliation in urban area near Aspen Park, CO |
| 5135082 | Douglas-fir tussock moth | Orgyia pseudotsugata | Partial defoliation of Douglas-fir, North turkey Creek near Aspen Park, CO |
| 5135083 | Douglas-fir tussock moth | Orgyia pseudotsugata | Partial defoliation of Douglas-fir, North Turkey Creek near Aspen Park, CO |
| 5135084 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135085 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135086 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135087 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5135088 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva, Aspen Park, CO |
| 5136002 | pine tussock moth | Dasychira grisefacta | Defoliation, western Nebraska |
| 5136003 | pine tussock moth | Dasychira grisefacta | Defoliation, |
| 5136004 | pine tussock moth | Dasychira grisefacta | Defoliation, western NE |
| 5136005 | pine tussock moth | Dasychira grisefacta | Defoliation, western NE |
| 5136006 | pine tussock moth | Dasychira grisefacta | Defoliation, western NE |
| 5136007 | pine tussock moth | Dasychira grisefacta | Defoliation, western NE |
| 5136008 | pine tussock moth | Dasychira grisefacta | Needle damage, western NE |
| 5136009 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136010 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136011 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136012 | pine tussock moth | Dasychira grisefacta | Mature larva, western NE |
| 5136013 | Columbian monkshood | Aconitum columbianum | near Rabbit Ears Pass, Routt NF, CO |
| 5136014 | orange agoseris | Agoseris aurantiaca | Long Draw Reservoir, Roosevelt NF, CO |
| 5136015 | western aster | Symphyotrichum ascendens | Roosevelt NF, CO |
| 5136016 | Gunnison's mariposa lily | Calochortus gunnisonii | Roosevelt NF, CO |
| 5136017 | Parry's bellflower | Campanula parryi | Flowers and foliage, Rocky Mountain NP, CO |
| 5136018 | harebell | Campanula rotundifolia | Rocky Mountain National Park, CO |
| 5136019 | western Indian paintbrush | Castilleja occidentalis | Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136020 | western Indian paintbrush | Castilleja occidentalis | Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136021 | giant red Indian paintbrush | Castilleja miniata | Routt NF, CO |
| 5136022 | splitleaf Indian paintbrush | Castilleja rhexiifolia | Routt NF, CO |
| 5136023 | splitleaf Indian paintbrush | Castilleja rhexiifolia | Routt National Forest, CO |
| 5136024 | splitleaf Indian paintbrush | Castilleja rhexiifolia | Flowers and foliage, Routt NF, CO |
| 5136025 | splitleaf Indian paintbrush | Castilleja rhexiifolia | Flower and foliage, Routt NF, CO |
| 5136026 | splitleaf Indian paintbrush | Castilleja rhexiifolia | Flowers and foliage, Routt NF, CO |
| 5136027 | fireweed | Chamerion angustifolium | Roosevelt NF, CO |
| 5136028 | fireweed | Chamerion angustifolium | Roosevelt NF, CO |
| 5136029 | Rocky Mountain beeplant | Cleome serrulata | Flowers, foliage and pods, Roosevelt NF, CO |
| 5136030 | Rocky Mountain beeplant | Cleome serrulata | Flowers, foliage and seed pods, Roosevelt, NF, CO |
| 5136031 | columbine | Aquilegia spp. | Flower and foliage, Carson NF, NM |
| 5136032 | columbine | Aquilegia spp. | Flowers and foliage, Carson NF, NM |
| 5136033 | orange sneezeweed | Hymenoxys hoopesii | Roosevelt NF, CO |
| 5136034 | orange sneezeweed | Hymenoxys hoopesii | Roosevelt NF, CO |
| 5136035 | onestem fleabane | Erigeron simplex | Roosevelt NF, CO |
| 5136036 | onestem fleabane | Erigeron simplex | Roosevelt NF, CO |
| 5136037 | arctic alpine forget-me-not | Eritrichium nanum var. aretioides | Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136038 | Engelmann's aster | Eucephalus engelmannii | Roosevelt National Forest, CO |
| 5136039 | rosering gaillardia | Gaillardia pulchella | |
| 5136040 | rosering gaillardia | Gaillardia pulchella | |
| 5136041 | rosering gaillardia | Gaillardia pulchella | |
| 5136042 | autumn dwarf gentian | Gentianella amarella ssp. acuta | Roosevelt NF, CO |
| 5136043 | whitish gentian | Gentiana algida | Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136044 | whitish gentian | Gentiana algida | Rocky Mountain National Park, CO |
| 5136045 | Rocky Mountain fringed gentian | Gentianopsis thermalis | Roosevelt NF, CO |
| 5136046 | Rocky Mountain fringed gentian | Gentianopsis thermalis | Roosevelt NF, CO |
| 5136048 | saxifrage | Saxifraga spp. | Trail Ridge Road, Rocky Mountain National Park, CO |
| 5136049 | scarlet gilia | Ipomopsis aggregata | Roosevelt NF, CO |
| 5136050 | scarlet gilia | Ipomopsis aggregata | Roosevelt NF, CO |
| 2167067 | spittlebugs or froghoppers | Spittlebug infestation on red spruce, Balsam Gap, Blue Ridge parkway, NC | |
| 2167068 | spittlebugs or froghoppers | Spittlebug infestation on red spruce, Balsam Gap, Blue Ridge parkway, NC | |
| 2167069 | ribbed pine borer | Rhagium inquisitor | Adult on end of pine log, Graham County, NC |
| 2167070 | swallowtail butterflies | Papilio spp. | |
| 2167071 | hoary Townsend daisy | Townsendia incana | |
| 2167074 | Woods' rose | Rosa woodsii | |
| 2167075 | western tent caterpillar | Malacosoma californicum | |
| 2167076 | Woods' rose | Rosa woodsii | |
| 2167077 | zerene fritillary | Speyeria zerene | Adult on white thistle |
| 2167078 | western tent caterpillar | Malacosoma californicum | Larval colony on ninebark, Larimer CO, NC. |
| 2167079 | western tent caterpillar | Malacosoma californicum | Larval colony on mountain mahogany |
| 5135034 | aspen decline | aerial photo from 2006 survey; Aerial view of aspen decline | |
| 2167066 | zerene fritillary | Speyeria zerene | Adults on white thistle |
| 2167024 | spiderwort | Tradescantia spp. | Beetle feeding on pollen in flower |
| 2167040 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation; 2006 |
| 2167041 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation; 2006 |
| 2167042 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation; 2006 |
| 2167043 | western tent caterpillar | Malacosoma californicum | Aerial view of defoliation; 2006 |
| 2167044 | western tent caterpillar | Malacosoma californicum | |
| 2167045 | western tent caterpillar | Malacosoma californicum | Tent and defoliation |
| 2167046 | pleasing fungus beetle | Megalodacne heros | |
| 2167047 | western tent caterpillar | Malacosoma californicum | Tents and defoliation |
| 2167048 | whitespotted sawyer | Monochamus scutellatus | |
| 2167049 | whitespotted sawyer | Monochamus scutellatus | |
| 2167050 | mountain ninebark | Physocarpus monogynus | |
| 2167051 | pricklypear/cholla | Opuntia spp. | |
| 2167059 | fir engraver | Scolytus ventralis | Aerial view of tree mortality |
| 2167060 | fir engraver | Scolytus ventralis | Aerial view of damage |
| 2167061 | common salsify | Tragopogon porrifolius | |
| 2167062 | fir engraver | Scolytus ventralis | Aerial view of damage |
| 2167063 | fir engraver | Scolytus ventralis | Aerial view of damage |
| 2167064 | fir engraver | Scolytus ventralis | Aerial view of damage |
| 2167065 | zerene fritillary | Speyeria zerene | Adults on white thistle |
| 2167034 | larkspur | Delphinium spp. | |
| 2167035 | larkspur | Delphinium spp. | |
| 2167039 | red spotted purple | Limenitis arthemis astyanax | |
| 2167025 | Colorado blue columbine | Aquilegia caerulea | |
| 2167026 | alderleaf mountain mahogany | Cercocarpus montanus | |
| 2167027 | Colorado blue columbine | Aquilegia caerulea | |
| 2167028 | Colorado blue columbine | Aquilegia caerulea | |
| 2167029 | grasshoppers | ||
| 2167030 | Colorado blue columbine | Aquilegia caerulea | |
| 2167031 | shaggy fleabane | Erigeron pumilus | |
| 2156041 | fernleaf phacelia | Phacelia bipinnatifida | |
| 2156042 | fernleaf phacelia | Phacelia bipinnatifida | |
| 2156045 | smooth Solomon's seal | Polygonatum biflorum | |
| 2156046 | smooth Solomon's seal | Polygonatum biflorum | |
| 2156047 | pin cherry | Prunus pensylvanica | |
| 2156048 | flame azalea | Rhododendron calendulaceum | |
| 2156049 | flame azalea | Rhododendron calendulaceum | |
| 2156050 | Catawba rosebay | Rhododendron catawbiense | |
| 2156051 | Catawba rosebay | Rhododendron catawbiense | |
| 2156052 | pink azalea | Rhododendron periclymenoides | |
| 2156053 | pink azalea | Rhododendron periclymenoides | |
| 2156054 | pink azalea | Rhododendron periclymenoides | |
| 2156055 | cane fruit (blackberry, raspberry) | Rubus spp. | |
| 2156056 | fire pink | Silene virginica | |
| 2156057 | fire pink | Silene virginica | |
| 2156058 | feathery false lily of the valley | Maianthemum racemosum ssp. racemosum | |
| 2156059 | feathery false lily of the valley | Maianthemum racemosum ssp. racemosum | |
| 2156060 | star chickweed | Stellaria pubera | |
| 2156062 | heartleaf foamflower | Tiarella cordifolia | |
| 2156063 | heartleaf foamflower | Tiarella cordifolia | |
| 2156064 | Virginia spiderwort | Tradescantia virginiana | |
| 2156065 | red trillium | Trillium erectum | |
| 2156066 | red trillium | Trillium erectum | |
| 2156067 | red trillium | Trillium erectum | |
| 2156068 | white trillium | Trillium grandiflorum | With a pink flower |
| 2156069 | white trillium | Trillium grandiflorum | With pink flowers |
| 2156070 | white trillium | Trillium grandiflorum | |
| 2156071 | white trillium | Trillium grandiflorum | |
| 2156072 | yellow wakerobin | Trillium luteum | |
| 2156073 | yellow wakerobin | Trillium luteum | |
| 2156074 | sweet wakerobin | Trillium vaseyi | |
| 2156075 | sweet wakerobin | Trillium vaseyi | |
| 2156076 | sweet wakerobin | Trillium vaseyi | |
| 2156077 | largeflower bellwort | Uvularia grandiflora | |
| 2156078 | mapleleaf viburnum | Viburnum acerifolium | |
| 2156079 | hobblebush | Viburnum lantanoides | |
| 2156080 | eastern turkeybeard | Xerophyllum asphodeloides | |
| 2167003 | balsam woolly adelgid | Adelges piceae | Gout on Fraser fir |
| 2167004 | ocellate gall midge | Acericecis ocellaris | |
| 2167005 | balsam woolly adelgid | Adelges piceae | gout on Fraser fir |
| 2167006 | balsam woolly adelgid | Adelges piceae | Gout on Fraser fir |
| 2167007 | balsam woolly adelgid | Adelges piceae | gout on Fraser fir |
| 2167008 | balsam woolly adelgid | Adelges piceae | Gout on Fraser fir |
| 2167009 | balsam woolly adelgid | Adelges piceae | Gout on Fraser fir |
| 2167010 | hemlock woolly adelgid | Adelges tsugae | Decline and mortality caused by hemlock wolly adelgid, |
| 2167011 | hemlock woolly adelgid | Adelges tsugae | Decline and mortality |
| 2167012 | hemlock woolly adelgid | Adelges tsugae | Decline and mortality, |
| 2167013 | hemlock woolly adelgid | Adelges tsugae | Decline and mortality |
| 2167014 | hemlock woolly adelgid | Adelges tsugae | |
| 2167015 | hemlock woolly adelgid | Adelges tsugae | Decline and mortality |
| 2167016 | hemlock woolly adelgid | Adelges tsugae | Infested foliage |
| 2167017 | hemlock woolly adelgid | Adelges tsugae | Infested foliage |
| 2167018 | hemlock woolly adelgid | Adelges tsugae | Infested foliage |
| 2167019 | hemlock woolly adelgid | Adelges tsugae | Infested foliage, |
| 2167020 | large red velvet mite | Allothrombium mitchelli | Adult on bark of Fraser fir |
| 2167021 | large red velvet mite | Allothrombium mitchelli | Adult on bark of Fraser fir |
| 2167022 | large red velvet mite | Allothrombium mitchelli | Adult on bark of Fraser fir |
| 2167023 | hemlock woolly adelgid | Adelges tsugae | Infested foliage |
| 2156018 | pink lady's-slipper | Cypripedium acaule | |
| 2156019 | pink lady's-slipper | Cypripedium acaule | |
| 2156020 | pink lady's-slipper | Cypripedium acaule | |
| 2156021 | American umbrellaleaf | Diphylleia cymosa | |
| 2156022 | beetleweed | Galax urceolata | |
| 2156023 | wild geranium | Geranium maculatum | |
| 2156025 | Bowman's root | Gillenia trifoliata | |
| 2156026 | bluet | Houstonia spp. | |
| 2156027 | dwarf crested iris | Iris cristata | |
| 2156028 | mountain laurel | Kalmia latifolia | |
| 2156029 | mountain laurel | Kalmia latifolia | |
| 2156030 | mountain laurel | Kalmia latifolia | |
| 2156031 | yellow-poplar | Liriodendron tulipifera | |
| 2156032 | Japanese honeysuckle | Lonicera japonica | |
| 2156033 | mountain magnolia | Magnolia fraseri | |
| 2156035 | narrowleaf evening-primrose | Oenothera fruticosa | |
| 2156037 | violet woodsorrel | Oxalis violacea | |
| 2156038 | violet woodsorrel | Oxalis violacea | |
| 2156009 | eastern sweetshrub | Calycanthus floridus | |
| 2156010 | eastern sweetshrub | Calycanthus floridus | |
| 2156011 | scarlet Indian paintbrush | Castilleja coccinea | |
| 2156012 | scarlet Indian paintbrush | Castilleja coccinea | |
| 2156014 | American squawroot | Conopholis americana | |
| 2156015 | American squawroot | Conopholis americana | |
| 2156016 | American squawroot | Conopholis americana | |
| 1241473 | cedar bark beetles | Phloeosinus spp. | Egg and larval gallery. |
| 2156002 | yellow buckeye | Aesculus flava | |
| 2156003 | wood anemone | Anemone quinquefolia | |
| 2156004 | Jack in the pulpit | Arisaema triphyllum | |
| 2156005 | Jack in the pulpit | Arisaema triphyllum | |
| 2156006 | Jack in the pulpit | Arisaema triphyllum | |
| 1241598 | larch casebearer | Coleophora laricella | Defoliation of western larch, Idaho Panhandle National Forest, ID |
| 1428143 | rat, vole, mouse | Stripping of bark | |
| 1510054 | hemlock woolly adelgid | Adelges tsugae | Ground spray equipment used for control of balsam woolly adelgid, Mt. Mitchell State Park, NC, ca 1961. |
| 1518059 | balsam woolly adelgid | Adelges piceae | Stem attack on Abies fraseri, Mt. Mitchell State Park, NC, ca 1961. |
| 1428093 | tamarisk | Tamarix spp. | Grove of salt cedars |
| 1428086 | mountain pine beetle | Dendroctonus ponderosae | Galleries underneath bark. |
| 1428082 | chipmunk | Tamias spp. | feeding on pine nuts. |
| 1428080 | moose | Alces alces | feeding on salt lick. |
| 0758245 | pandora moth | Coloradia pandora | Mature larva feeding on ponderosa pine. |
| 0758246 | pandora moth | Coloradia pandora | Two female adults on bole of a ponderosa pine |
| 0758159 | western spruce budworm | Choristoneura freemani | Defoliation of new shoots |
| 0758160 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758161 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758162 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758163 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758164 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758165 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758166 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758167 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758168 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758169 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation |
| 0758170 | western spruce budworm | Choristoneura freemani | Defoliation |
| 0758171 | western spruce budworm | Choristoneura freemani | Defoliation |
| 0758172 | western spruce budworm | Choristoneura freemani | Defoliation |
| 0758173 | western spruce budworm | Choristoneura freemani | Defoliation |
| 0758082 | beech scale | Cryptococcus fagisuga | Bark of American beech with symptoms of beech bark disease. |
| 2252094 | pine engraver | Ips pini | |
| 1502047 | annosum root disease | Heterobasidion annosum | Treatment of a freshly cut stump with borax to prevent infection by Heterobasidium annosum |
| 2134047 | monarch butterfly | Danaus plexippus | |
| 2134048 | monarch butterfly | Danaus plexippus | |
| 2122032 | fire | Aerial view of a small but intense wildfire near Drake, CO | |
| 2122033 | fire | Aerial view of a small but intense wildfire near Drake, CO | |
| 2122034 | fire | Aerial view of trees damaged by a low intensity ground fire near Jamestown, CO | |
| 2122035 | fire | Aerial view of tree damage caused by a low intensity ground fire near Jamestown, CO | |
| 2122036 | nessus sphinx | Amphion floridensis | Adult moth resting on foliage, Fort Collins, CO |
| 2122037 | pinyon ips | Ips confusus | Near Taos, NM |
| 2122038 | fire | Aerial view of damage caused by the Mason Fire near Florence, CO | |
| 2122039 | fire | Aerial view of damage caused by the Mason Fire near Florence, CO | |
| 2122040 | Milbert's tortoiseshell | Aglais milberti | Larvae on nettle, Cherokee Park, CO |
| 2122041 | spotted pine sawyer | Monochamus clamator | Malhuer NF, OR |
| 2122042 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Pinus contorta, Pinus flexilis, Tennessee Mountain, Nederland, CO |
| 2122043 | mountain pine beetle | Dendroctonus ponderosae | Tree mortality on western slope of the Wet Mountains, CO |
| 2122044 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of tree mortality, Sangre de Cristo Mountains, CO |
| 2122045 | cedar bark beetles | Phloeosinus spp. | Near Leadville, CO. |
| 2122046 | cedar bark beetles | Phloeosinus spp. | Near Leadville, CO. |
| 2122047 | poplar twiggall fly | Hexomyza schineri | Galls, Fort Collins, CO. |
| 2122048 | poplar twiggall fly | Hexomyza schineri | Galls |
| 2122022 | aspen decline | Sand Creek Basin, Colorado | |
| 2122023 | defoliation due to unknown cause | Aerial view of defoliation of quaking aspen, Rio Grande National Forest, CO. Causal insect is unknown. | |
| 2122024 | leaf scorches | Aerial view of leaf scorch of quaking aspen, Colorado | |
| 2122025 | leaf scorches | Leaf scorch on aspen foliage, South Park, CO | |
| 2122026 | leaf scorches | ||
| 2122027 | Douglas-fir beetle | Dendroctonus pseudotsugae | Shoshone NF, WY |
| 2122028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation near Aspen Park, CO |
| 2122029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Egg mass on pupal case, near Aspen Park, CO |
| 2122050 | spruce beetle | Dendroctonus rufipennis | Aerial view of faders, Red Mountain, Rio Grande, NF, CO |
| 2122051 | spruce beetle | Dendroctonus rufipennis | Aerial view of faders, Red Mountain, Rio Grande, NF, CO |
| 2122052 | spruce beetle | Dendroctonus rufipennis | Aerial view of faders and tree mortaloty, red Mountain, Rio Grande, NF, CO |
| 2122053 | spruce beetle | Dendroctonus rufipennis | Aerial view of faders and tree mortality, Red Mountain, Rio Grande, NF, CO |
| 2122054 | spruce beetle | Dendroctonus rufipennis | Aerial view of faders and tree mortality, Red Mountain, Rio Grande NF, CO |
| 2122055 | western balsam bark beetle | Dryocoetes confusus | Aerial view of faders, Bull Mountain, Larimer, CO. |
| 2122056 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation in upscale housing development, Bear Mountain, near Evergreen, CO |
| 1254083 | hackberry witches' broom | Witches brooms caused by a combination of a mite (Aceria celtis (Kendall, 1929)) and fungus (Sphaerotheca phytoptophila) on ornamental hackberry, Fort Collins, CO. | |
| 1254084 | hackberry witches' broom | Tree heavily damaged by witches brooms caused by a combination of a mite (Aceria celtis (Kendall, 1929)) and fungus (Sphaerotheca phytoptophila), Fort Collins, CO. | |
| 1248015 | pine engraver | Ips pini | Multiple tree groups of dead and dying lodgepole pines near Evergreen, CO |
| 1248016 | mountain pine beetle | Dendroctonus ponderosae | Large multiple tree spot on the summit of Tennessee Mountain near Nederland, CO. Pinus contorta and P. flexilis |
| 1248017 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of a multiple tree spot on road to Rollins Pass near Rollinsville, CO |
| 1248018 | mountain pine beetle | Dendroctonus ponderosae | Rollins Pass, CO |
| 1248019 | mountain pine beetle | Dendroctonus ponderosae | Rollinsvile, CO |
| 1248020 | mountain pine beetle | Dendroctonus ponderosae | Fading trees near Willow Creek Pass, CO |
| 1248021 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of heavy mortality near Antero Jct, South Park, CO |
| 1248022 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of heavy mortality in ponderosa pine near Antero Jct, South Park,CO |
| 1248023 | Douglas-fir beetle | Dendroctonus pseudotsugae | Aerial view of tree mortality, San Juan NF, CO |
| 1248024 | fir engraver | Scolytus ventralis | Top Kill in white fir, eastern slope of the Wet Mountains, CO |
| 1248025 | fir engraver | Scolytus ventralis | Aerial view of top kill and tree mortality, Wet Mountains, CO |
| 1248026 | western balsam bark beetle | Dryocoetes confusus | Aerial view of tree mortality near Bull Mountain, Larimer CO, CO |
| 1248027 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aspen Park, CO |
| 1248028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aspen Park, CO |
| 1248029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aspen Park, CO |
| 1248030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation in Douglas-fir near Aspen Park, CO |
| 1248031 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality caused by spruce beetle, San Juan NF, CO |
| 1248032 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality caused by spruce beetle, San Juan, N.F., CO |
| 1248004 | milkweed bugs | Oncopeltus spp. | |
| 1248005 | giant milkweed | Calotropis gigantea | |
| 1248006 | gypsy moth | Lymantria dispar | Virus infected |
| 1248010 | red milkweed beetle | Tetraopes tetrophthalmus | Adult on milkweed flower, Fort Collins, CO |
| 1248011 | red milkweed beetle | Tetraopes tetrophthalmus | Adult on milkweed flower, Fort Collins, CO |
| 1248012 | boxelder bug | Boisea trivittata | Adult box elder bug, Fort Collins, CO |
| 1248013 | Road salt or de-icing salt | The actual causal agent for this damage is not yet known but appears to be associated with magnesium chloride or other chemical used to de-ice roads in winter. Boulder, CO | |
| 1248014 | frost and winter injury (general) | Aerial view of aspen with patches of brownish, thin foliage believed to be the result of a late spring frost. Mt Evans wilderness, Pike NF, Colorado | |
| 1248036 | fire | Aerial view of a portion of the Picnic Rock fire, west of Fort Collins CO. This fire occurred in March 2004 | |
| 1248037 | chemicals | Roadside damage due to an as yet unspecified cause, probably application of de-iceing chemicals, near Boulder, CO | |
| 1248038 | blue spruce engraver | Ips hunteri | Top kill caused by a spruce engraver beetle, Ips hunteri, Fort Collins, CO |
| 1274013 | bagworm | Thyridopteryx ephemeraeformis | Avery Island, LA |
| 1274017 | red milkweed beetle | Tetraopes tetrophthalmus | Feeding on milkweed flower. Fort Collins, CO. |
| 1248034 | pinyon ips | Ips confusus | |
| 1254080 | purple erineum maple mite | Eriophyes calcercis | Rossevelt NF, CO. |
| 1309001 | white-lined sphinx | Hyles lineata | mating |
| 1309002 | milkweed tussock moth | Euchaetes egle | Madison Co, Iowa. |
| 1309003 | polyphemus moth | Antheraea polyphemus | Fort Collins, CO |
| 1309004 | swallowtail butterflies | Papilio spp. | Adult at rest on iris blossom, Fort Collins, CO |
| 1309005 | swallowtail butterflies | Papilio spp. | Mature larva, Fort Collins, CO |
| 1309006 | tiger moths | Grammia spp. | Adult on milkweed flower, Cache La Poudre Canyon, CO |
| 1254082 | aspen leafminer | Phyllocnistis populiella | Leaf mining, Roosevelt NF, CO. |
| 1254062 | hackberry bud gall maker | Pachypsylla celtidisgemma | Fort Collins, CO. |
| 1254063 | pineland dwarf mistletoe | Arceuthobium vaginatum ssp. cryptopodum | Fort Collins, CO. |
| 1254064 | pineland dwarf mistletoe | Arceuthobium vaginatum ssp. cryptopodum | Witches brooms, Roosevelt National Forest, CO. |
| 1254065 | pineland dwarf mistletoe | Arceuthobium vaginatum ssp. cryptopodum | Tree killed by heavy dwarf mistletoe infestation. |
| 1254066 | American dwarf mistletoe | Arceuthobium americanum | Female plant with ripe fruits, Gallatin National Forest, MT |
| 1254067 | American dwarf mistletoe | Arceuthobium americanum | Witches brooms, Roosevelt NF, CO. |
| 1254068 | powdery mildews | Fort Collins, CO. | |
| 1254069 | Dothichiza canker | Dothichiza populea | Dead crown due to canker infection, Fort Collins, CO. |
| 1254070 | Gynosporanium rusts | Gymnosporangium spp. | Fort Collins, CO. |
| 1254071 | Gynosporanium rusts | Gymnosporangium spp. | |
| 1254072 | fire blight | Erwinia amylovora | Fort Collins, CO. |
| 1254073 | fire blight | Erwinia amylovora | Shepherd's crook, Fort Collins, CO. |
| 1254074 | wind | Roosevelt NF, CO. | |
| 1254075 | iron deficiency | Iron chlorosis on foliage of trident maple, Fort Collins, CO. | |
| 1254076 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO. | |
| 1254077 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO. | |
| 1254078 | iron deficiency | Iron chlorosis on foliage, Fort Collins, CO | |
| 1254030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Heavy defoliation of grand fir and Douglas fir, Wallowa Whitman NF, OR. |
| 1254031 | tiger moth | Lophocampa ingens | Colony of mature larvae, Roosevelt NF, CO. |
| 1254032 | tiger moth | Lophocampa ingens | Larvae and tent in tip, Roosevelt NF, CO. |
| 1254033 | western tent caterpillar | Malacosoma californicum | Mature larva on tent, Roosevelt NF, CO. |
| 1254034 | western tent caterpillar | Malacosoma californicum | Tent and defoliation on quaking aspen, Roosevelt NF, CO. |
| 1254035 | conifer sawflies | Neodiprion spp. | Defoliation, Ochoco NF, OR. |
| 1254036 | conifer sawflies | Neodiprion spp. | Larval colony, near Jasper, AL. |
| 1254037 | conifer sawflies | Neodiprion spp. | Single larva on ponderosa pine, west of Fort Collins, CO |
| 1254038 | brownheaded ash sawfly | Tomostethus multicinctus | Larvae on bark migrating to pupation sites. |
| 1254039 | brownheaded ash sawfly | Tomostethus multicinctus | Boulder, CO. |
| 1254040 | fall webworm | Hyphantria cunea | Tent and larvae, Fort Collins, CO. |
| 1254041 | elm leaf beetle | Xanthogaleruca luteola | Fort Collins, CO. |
| 1254042 | elm leaf beetle | Xanthogaleruca luteola | Larvae and defoliation, Fort Collins, CO. |
| 1254043 | aphids | ||
| 1254044 | aphids | Aphid colonies on chyranthemum, Fort Collins, CO. | |
| 1254045 | aphids | Fort Collins, CO. | |
| 1254046 | woolly apple aphid | Eriosoma lanigerum | Fort Collins, CO. |
| 1254047 | lady beetle | Fort Collins, CO. | |
| 1254048 | lady beetle | Fort Collins, CO. | |
| 1254049 | pine needle scale | Chionaspis pinifoliae | Fort Collins, CO. |
| 1254050 | oystershell scale | Lepidosaphes ulmi | Fort Collins, CO. |
| 1254051 | European elm scale | Eriococcus spuria | Fort Collins, CO. |
| 1254052 | European elm scale | Eriococcus spuria | Black sooty mold growing on honeydew deposited by scale infestations, Colorado State University campus, Fort Collins, CO. |
| 1254053 | juniper spittlebug | Clastoptera juniperina | Fort Collins, CO. |
| 1254054 | mealybugs | Fort Collins, CO. | |
| 1254055 | mealybugs | Infestation on bark, Fort Collins, CO. | |
| 1254056 | cooley spruce gall adelgid | Adelges cooleyi | Fort Collins, CO. |
| 1254057 | cooley spruce gall adelgid | Adelges cooleyi | Green gall, Fort Collins, CO. |
| 1254058 | cooley spruce gall adelgid | Adelges cooleyi | Fort Collins, CO. |
| 1254059 | pinyon spindlegall midge | Pinyonia edulicola | Galls, Fort Collins, CO. |
| 1254060 | poplar twiggall fly | Hexomyza schineri | Galls, Fort Collins, CO. |
| 1254002 | mountain pine beetle | Dendroctonus ponderosae | Pair of adults constructing egg gallery, Lincoln, MT |
| 1254003 | mountain pine beetle | Dendroctonus ponderosae | |
| 1254004 | mountain pine beetle | Dendroctonus ponderosae | Fading pines indicative of beetle attack, Red Feather Lakes, CO. |
| 1254005 | mountain pine beetle | Dendroctonus ponderosae | Aerial view of dead and dying trees, Black Hills NF, SD |
| 1254006 | Douglas-fir beetle | Dendroctonus pseudotsugae | |
| 1254007 | Douglas-fir beetle | Dendroctonus pseudotsugae | Fading Douglas-fir, Roosevelt, NF, CO |
| 1254008 | sixspined ips | Ips calligraphus | Galleries in ponderosa pine, Ashland, MT |
| 1254009 | pine engraver | Ips pini | Top kill in ponderosa pine, Warm Springs IR, OR |
| 1254010 | blue spruce engraver | Ips hunteri | Fading spruces due to Blue spruce engraver beetle attack, Timnath, CO. |
| 1254011 | blue spruce engraver | Ips hunteri | Pitch tubes and boring dust on bark surface, Timnath, CO. |
| 2500001 | fir engraver | Scolytus ventralis | Rio Grande NF, CO. |
| 2500002 | fir engraver | Scolytus ventralis | Rio Grande NF, CO. |
| 2500003 | pinyon ips | Ips confusus | Pitch tubes and boring dust on the bark surface of pinyon pine. |
| 2500004 | fir engraver | Scolytus ventralis | Aerial view of tree mortality, San Juan NF, CO |
| 2500005 | pinyon ips | Ips confusus | Aerial view of group of trees killed by pinyon engraver beetle, Rio Grande NF, CO |
| 2500006 | pinyon ips | Ips confusus | Scattered tree mortality caused by pinyon engraver beetle, Rio Grande, NF, CO |
| 2500007 | pinyon ips | Ips confusus | Scattered tree mortality caused by pinyon engraver beetle, Rio Grande, NF, CO |
| 2500008 | pinyon ips | Ips confusus | Group killed by pinyon engraver beetle, Rio Grande NF, CO. |
| 2500009 | porcupine | Erethizon dorsatum | Stripping of bark of pinyon pine by porcupine. Resin flow from this wounds makes trees attractive to the pinyon engraver beetle, Ips confusus. |
| 1428146 | spiny caterpillar | Ormiscodes cinnamomea | Mature larva |
| 1428147 | goldenhaired bark beetle | Hylurgus ligniperda | under bark |
| 1428102 | European elm scale | Eriococcus spuria | |
| 1428103 | European elm scale | Eriococcus spuria | on the Colorado State University campus covered with black sooty mold indicative of infestation by European elm scale. |
| 1428110 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae, southern Utah |
| 1428118 | quaking aspen | Populus tremuloides | at peak of fall coloring. |
| 1428119 | quaking aspen | Populus tremuloides | at peak of fall color. |
| 1428120 | quaking aspen | Populus tremuloides | Close-up of aspen leaves at peak of fall color; The red color shown here is somwhat unusual for quaking aspen, which usually turns a bright yellow color. |
| 1428121 | whitish gentian | Gentiana algida | Cluster of flowers along Trail Ridge Road. |
| 1428122 | Whipple's penstemon | Penstemon whippleanus | |
| 1428123 | American pasqueflower | Pulsatilla patens | Cluster of flowers. |
| 1428124 | Colorado blue columbine | Aquilegia caerulea | Close up of flowers. |
| 1428125 | bluebells | Mertensia spp. | Close-up of flower. |
| 1428126 | lupine | Lupinus spp. | Close-up of flower, west of Fort Collins. |
| 1428127 | yellow avalanche-lily | Erythronium grandiflorum | Close-up of flowers, Cameron Pass |
| 1428128 | Great Plains yucca | Yucca glauca | Group of plants at peak of flowering, west of Fort Collins. |
| 1428087 | mountain pine beetle | Dendroctonus ponderosae | Group of ponderosa pines killed by mountain pine beetle. |
| 1428079 | moose | Alces alces | Pair of moose feeding on salt lick. |
| 1428092 | tamarisk | Tamarix spp. | Close-up of foliage and flower, Glenwood Canyon |
| 1428105 | purple erineum maple mite | Eriophyes calcercis | |
| 1428106 | southwestern tent caterpillar | Malacosoma incurvum | Tents, southern Utah |
| 1428107 | southwestern tent caterpillar | Malacosoma incurvum | tents in southern Utah |
| 1428108 | southwestern tent caterpillar | Malacosoma incurvum | tents and defoliation in southern Utah |
| 1428094 | tamarisk | Tamarix spp. | Grove of saltcedar |
| 1428095 | leafy spurge | Euphorbia esula | Close up of flower, Rist Canyon, near Fort Collins. |
| 1428096 | leafy spurge | Euphorbia esula | Grassy area invaded by leafy spurge. |
| 1428097 | leafy spurge | Euphorbia esula | Meadow in Rist Canyon, west of Fort Collins, invaded by leafy spurge. |
| 1428098 | leafy spurge | Euphorbia esula | Foliage of leafy spurge at peak of fall coloring. |
| 1428099 | pinyon spindlegall midge | Pinyonia edulicola | galls. |
| 1428100 | poplar twiggall fly | Hexomyza schineri | gall on twigs. |
| 1428081 | pronghorn antelope | Antilocapra americana | Herd of proghorn antelope, near Moise. |
| 1428083 | white pine weevil | Pissodes strobi | leader damage at. |
| 1428084 | mountain pine beetle | Dendroctonus ponderosae | Pair of adult beetles in egg gallery. |
| 1428085 | mountain pine beetle | Dendroctonus ponderosae | Larvae and galleries. |
| 3943075 | bark beetle | Ips latidens | Galleries in windthrown spruce. |
| 3943076 | leafy spurge | Euphorbia esula | Close up of flower, near Fort Collins. |
| 3943077 | leafy spurge | Euphorbia esula | Infested meadow, Rist Canyon, west of Fort Collins |
| 1428077 | elk | Cervus canadensis | |
| 1428078 | elk | Cervus canadensis | |
| 1428075 | mountain goat | Oreamnos americanus | Near summit of Mt. Evans. |
| 1428109 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae |
| 1428129 | bitter root | Lewisia rediviva | Group of flowers, Wyoming-Colorado border. This is the state flower of Montana. |
| 1428104 | Gynosporanium rusts | Gymnosporangium spp. | Telial stage |
| 1428101 | oystershell scale | Lepidosaphes ulmi | |
| 1428091 | Russian-olive | Elaeagnus angustifolia | Close-up of foliage |
| 0758158 | western balsam bark beetle | Dryocoetes confusus | Scattered tree mortality |
| 0758156 | fir engraver | Scolytus ventralis | Aerial view of tree mortality. |
| 0758155 | fir engraver | Scolytus ventralis | Aerial view of tree mortality. |
| 0758154 | fir engraver | Scolytus ventralis | Aerial view of multiple tree spots |
| 0758152 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality |
| 0758153 | spruce beetle | Dendroctonus rufipennis | Aerial view of a large timber salvage operation to harvest trees killed by spruce beetle. |
| 0758151 | spruce beetle | Dendroctonus rufipennis | Aerial view of tree mortality |
| 1428020 | sacred fir | Abies religiosa | Close up of healthy foliage |
| 1428027 | sacred fir looper | Evita hyalinaria hyalinaria | Adult resting on sacred fir with heavy defoliation. |
| 1428032 | goldenhaired bark beetle | Hylurgus ligniperda | Adult, larvae and pupae in pine log |
| 0758157 | fir engraver | Scolytus ventralis | Trees attacked by Scolytus ventralis showing variety of attack patterns: top kill, branch attacks and total tree kill. |
| 2251002 | western gall rust | Endocronartium harknessii | gall on young pine |
| 2252030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation |

