William M. Ciesla's Images
Title: OwnerOrganization: Forest Health Management International
Unit: Fort Collins, CO.
Country: United States
 |
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. |
| 458 Images of 136 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5466812 | pine tortoise scale | Toumeyella parvicornis | |
| 5466813 | pine tortoise scale | Toumeyella parvicornis | |
| 5466814 | pine tortoise scale | Toumeyella parvicornis | |
| 1309007 | oak rough bulletgall wasp | Disholcaspis quercusmamma | Galls, Fort Collins, CO. |
| 3943079 | Asian chestnut gall wasp | Dryocosmus kuriphilus | Galls on branches |
| 5466861 | spruce beetle | Dendroctonus rufipennis | |
| 5466844 | spruce beetle | Dendroctonus rufipennis | |
| 5466851 | spruce beetle | Dendroctonus rufipennis | |
| 5466852 | spruce beetle | Dendroctonus rufipennis | |
| 5466853 | 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 |
| 5466792 | pinyon ips | Ips confusus | |
| 5466795 | pinyon ips | Ips confusus | |
| 5466796 | 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. | |
| 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 | |
| 5466866 | western spruce budworm | Choristoneura freemani | |
| 5466867 | western spruce budworm | Choristoneura freemani | |
| 5466766 | american ermine moth | Yponomeuta multipunctella | |
| 5466767 | american ermine moth | Yponomeuta multipunctella | |
| 5466721 | eastern tent caterpillar | Malacosoma americanum | |
| 5466722 | eastern tent caterpillar | Malacosoma americanum | tent |
| 5466723 | eastern tent caterpillar | Malacosoma americanum | tent |
| 5466719 | eastern tent caterpillar | Malacosoma americanum | |
| 5466720 | eastern tent caterpillar | Malacosoma americanum | |
| 5466699 | loopers | Chrysodeixis spp. | |
| 5466700 | loopers | Chrysodeixis spp. | |
| 5466696 | tuliptree silkmoth | Callosamia angulifera | |
| 5466726 | speckled green fruitworm | Orthosia hibisci | |
| 5466704 | greenstriped mapleworm | Dryocampa rubicunda | |
| 5466705 | greenstriped mapleworm | Dryocampa rubicunda | |
| 5461561 | armored scales | Leucaspis spp. | |
| 5461649 | European spruce bark beetle | Ips typographus | parasitized |
| 5461645 | European spruce bark beetle | Ips typographus | |
| 5461646 | European spruce bark beetle | Ips typographus | |
| 5461647 | European spruce bark beetle | Ips typographus | |
| 5461648 | European spruce bark beetle | Ips typographus | |
| 5461644 | European spruce bark beetle | Ips typographus | |
| 5461642 | European spruce bark beetle | Ips typographus | callow adult |
| 5461643 | European spruce bark beetle | Ips typographus | callow adult |
| 5461639 | European spruce bark beetle | Ips typographus | |
| 5461641 | European spruce bark beetle | Ips typographus | |
| 5461636 | European spruce bark beetle | Ips typographus | exit holes |
| 5461637 | European spruce bark beetle | Ips typographus | |
| 5461635 | European spruce bark beetle | Ips typographus | |
| 5461634 | European spruce bark beetle | Ips typographus | |
| 5461631 | horse chestnut leafminer | Cameraria ohridella | |
| 5461557 | eucalyptus weevil | Gonipterus scutellatus | |
| 5461558 | eucalyptus weevil | Gonipterus scutellatus | |
| 5461632 | horse chestnut leafminer | Cameraria ohridella | |
| 5461629 | horse chestnut leafminer | Cameraria ohridella | |
| 5461630 | horse chestnut leafminer | Cameraria ohridella | |
| 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. |
| 1274016 | Tetrio sphinx | Pseudosphinx tetrio | This insect is a common defoliator of frangipani and also reportedly occurs in the extreme southern United States (southern LA, TX, AZ and FL.). Plymouth, Tobago (Trinidad and Tobago). 2nd place in the 2004 Southern Forest Insect Work Conference Photo Salon in the category of Forest Insects. |
| 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. |
| 1254018 | red-legged buprestis | Buprestis rufipes | |
| 0758011 | western tiger swallowtail | Papilio rutulus | Adult on iris leaf |
| 0758012 | crimson patched longwing | Heliconius erato petiverana | Adult at rest on foliage |
| 5382391 | long-horned beetle | Cosmosalia nigrolineata | on cow parsnip |
| 5382458 | western tiger swallowtail | Papilio rutulus | on milkweed flower |
| 5382485 | northwest fritillary | Speyeria hesperis | on Rocky Mountain bee plant |
| 3948068 | flatheaded or metallic wood borer | Flatheaded wood borer (Family Buprestidae) in stem, Blue Nile Valley. | |
| 3948070 | long-horned beetles | Roundheaded wood borer (Family Cerambycidae) in stem of Acacia nilotica, Blue Nile Valley. | |
| 0758018 | tomato hornworm | Manduca quinquemaculata | Mature larva feeding on foliage |
| 0017021 | Sirex woodwasp | Sirex noctilio | female |
| 1254022 | white pine weevil | Pissodes strobi | |
| 1254023 | white pine weevil | Pissodes strobi | Dead leader in young Engelmann spruce |
| 5382347 | large aspen tortrix | Choristoneura conflictana | Aspens defoliated by large aspen tortix |
| 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 |
| 5382380 | large aspen tortrix | Choristoneura conflictana | Defoliation of quaking aspen |
| 5382382 | large aspen tortrix | Choristoneura conflictana | |
| 5382406 | western pine beetle | Dendroctonus brevicomis | Tree mortality adjacent to old burn |
| 5382413 | fall webworm | Hyphantria cunea | Aerial view of defoliation and tents |
| 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 |
| 5382490 | red-femured milkweed borer | Tetraopes femoratus | Adult on milkweed |
| 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 |
| 1254027 | western spruce budworm | Choristoneura freemani | |
| 1254028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Egg mass |
| 1254029 | Douglas-fir tussock moth | Orgyia pseudotsugata | Mature larva |
| 0017001 | spiny caterpillar | Ormiscodes cinnamomea | defoliation |
| 0017002 | spiny caterpillar | Ormiscodes cinnamomea | mature larva (Note clusters of ectoparasitoides on body) |
| 0017003 | nun moth | Lymantria monacha | egg mass |
| 0017004 | nun moth | Lymantria monacha | newly hatched larvae on pine bark |
| 0017005 | nun moth | Lymantria monacha | defoliation |
| 0017006 | nun moth | Lymantria monacha | defoliation to understory |
| 0017007 | European spruce bark beetle | Ips typographus | |
| 0017008 | larger pine shoot beetle | Tomicus piniperda | |
| 0017009 | Mediterranean pine engraver beetle | Orthotomicus erosus | |
| 0017010 | Mediterranean pine engraver beetle | Orthotomicus erosus | Pinus brutia killed by Mediterranean pine beetle, Turkish Cyprus |
| 0017011 | pine processionary moth | Thaumetopoea pityocampa | egg mass |
| 0017012 | pine processionary moth | Thaumetopoea pityocampa | third instar larval colony |
| 0017013 | pine processionary moth | Thaumetopoea pityocampa | Defoliation by early instar larvae |
| 0017014 | pine processionary moth | Thaumetopoea pityocampa | tents of mature larvae |
| 0017015 | pine processionary moth | Thaumetopoea pityocampa | heavy defoliation |
| 0017016 | Japanese pine sawyer | Monochamus alternatus | maturation feeding on Pinus massoniana |
| 0017017 | Japanese pine sawyer | Monochamus alternatus | |
| 0017018 | Masson pine caterpillar | Dendrolimus punctatus | mature larva |
| 0017019 | Masson pine caterpillar | Dendrolimus punctatus | egg masses |
| 0017020 | Masson pine caterpillar | Dendrolimus punctatus | defoliation |
| 0017022 | Sirex woodwasp | Sirex noctilio | male |
| 0017023 | Sirex woodwasp | Sirex noctilio | and larval tunnels |
| 0017024 | Sirex woodwasp | Sirex noctilio | Exit holes |
| 0017026 | Sirex woodwasp | Sirex noctilio | A technician injects an herbicide into a supressed pine to serve as a trap tree for monitoring low level populations |
| 0017027 | Sirex woodwasp | Sirex noctilio | Perti dish containing a culture of a parasitic nematode used for bio control. |
| 0017028 | Sirex woodwasp | Sirex noctilio | A culture of parasitic nematode |
| 0017029 | Sirex woodwasp | Sirex noctilio | A technician punches holes in an infested tree to prepare it for inoculation with parasitic nematode. |
| 0017030 | Sirex woodwasp | Sirex noctilio | A technician injects a suspension of parasitic nematode into a infested tree |
| 0017034 | Sirex woodwasp | Sirex noctilio | Aero Boero aircraft used for aerial sketchmapping of damage |
| 0017040 | Sirex woodwasp | Sirex noctilio | Aerial view of tree mortality |
| 0017041 | Sirex woodwasp | Sirex noctilio | Aerial view of tree mortality in plantations |
| 0017042 | Sirex woodwasp | Sirex noctilio | Aerial view of tree mortality in pine plantations |
| 0017043 | Sirex woodwasp | Sirex noctilio | Aerial view of tree moratlity in a pine plantation |
| 0017044 | Sirex woodwasp | Sirex noctilio | Aerial view of tree mortality in pine plantation |
| 0017045 | Sirex woodwasp | Sirex noctilio | |
| 0017046 | Sirex woodwasp | Sirex noctilio | Aerial view of tree mortality in a pine plantation |
| 0017052 | Sirex woodwasp | Sirex noctilio | Row thinned plantations |
| 0017062 | Sirex woodwasp | Sirex noctilio | Aerial view of plantation with low level of tree mortality |
| 0017069 | Sirex woodwasp | Sirex noctilio | Plantation harvested because of heavy damage. |
| 0017070 | Sirex woodwasp | Sirex noctilio | Plantation harvested because of heavy damage. |
| 0017077 | Sirex woodwasp | Sirex noctilio | Erik Johnson, USDA Forest Service R-2 and Yeda Oliviera, EMBRAPA reviewing an aerial survey map of Sirex noctilio damage; EMBRAPA headquarters |
| 0017078 | Sirex woodwasp | Sirex noctilio | Erik Johnson, USDA Forest Service R-2 and Yeda Oliviera, EMBRAPA reviewing an aerial survey map of Sirex noctilio damage; EMBRAPA headquarters |
| 0017080 | Sirex woodwasp | Sirex noctilio | Erik Johnson, USDA Forest Service R-2 and Yeda Oliviera, EMBRAPA reviewing an aerial survey map of Sirex noctilio damage; EMBRAPA headquarters |
| 0017081 | giant conifer aphids | Cinara spp. | Infestation of an introduced conifer aphid, Florestal Mobasa. |
| 0017082 | giant conifer aphids | Cinara spp. | Infestation of an introduced conifer aphid, Florestal Mobasa. |
| 0017083 | long-horned beetles | The leaves of this plant are used for a local beverage known as yerba mate and the insect is a wood boring pest of this plant | |
| 0758001 | pandora moth | Coloradia pandora | Two female adults on ponderosa pine |
| 0758002 | pandora moth | Coloradia pandora | Mature larvae feeding on ponderosa pine foliage |
| 0758006 | aphids | Aphid colony on lupine | |
| 0758007 | aphids | Aphid colony on chrysanthemum | |
| 0758008 | whitespotted sawyer | Monochamus scutellatus | on stem |
| 0758009 | flower longhorn | Stictoleptura canadensis | |
| 0758010 | owl butterflies | Caligo spp. | Adult on banana leaf |
| 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 |
| 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 |
| 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 |
| 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 |
| 3948086 | red pine adelgid | Pineus borneri | Infested branch near Muguga |
| 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 |
| 1248002 | Tetrio sphinx | Pseudosphinx tetrio | Killed by virus |
| 1254001 | mountain pine beetle | Dendroctonus ponderosae | Pitch tubes on bark surface |
| 5346005 | large aspen tortrix | Choristoneura conflictana | Rolled leaf containing larva, Culebra Range, CO, July 2007 |
| 5346035 | fir engraver | Scolytus ventralis | Aerial view of scattered tree mortality, Wet Mountains, Colorado, 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 |
| 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 |
| 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 |
| 5347012 | monarch butterfly | Danaus plexippus | 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 |
| 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 |
| 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 |
| 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. |
| 5175073 | sawfly | Cerospastus volupis | Larvae on foliage, X Region, Chile |
| 5175075 | sawfly | Cerospastus volupis | Larval colony on foliage, X Region, Chile |
| 5175076 | sawfly | Cerospastus volupis | Larval colony and defoliation, X Region, Chile |
| 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. |
| 1428086 | mountain pine beetle | Dendroctonus ponderosae | Galleries underneath bark. |
| 2252094 | pine engraver | Ips pini | |
| 2122027 | Douglas-fir beetle | Dendroctonus pseudotsugae | Shoshone NF, WY |
| 2122028 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation near Aspen Park, CO |
| 2122037 | pinyon ips | Ips confusus | Near Taos, NM |
| 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 |
| 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 |
| 2122056 | western spruce budworm | Choristoneura freemani | Aerial view of defoliation in upscale housing development, Bear Mountain, near Evergreen, CO |
| 3943031 | lesser pine shoot beetle | Tomicus minor | southwestern Lithuania |
| 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 |
| 1248003 | monarch butterfly | Danaus plexippus | Mature larva, Village of Plymouth, Tobago, Trinidad and Tobago |
| 1248004 | milkweed bugs | Oncopeltus spp. | |
| 1248006 | gypsy moth | Lymantria dispar | Virus infected |
| 1248007 | European oak leaf roller | Tortrix viridana | Single pupa in webbing on foliage of Quercus robur |
| 1248008 | gypsy moth | Lymantria dispar | |
| 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 |
| 1248034 | pinyon ips | Ips confusus | |
| 1248038 | blue spruce engraver | Ips hunteri | Top kill caused by a spruce engraver beetle, Ips hunteri, Fort Collins, CO |
| 1248001 | Tetrio sphinx | Pseudosphinx tetrio | Mature larva, village of Plymouth, Tobago, Trinidad and Tobago |
| 1244002 | giant conifer aphids | Cinara spp. | Colony, VI Region, Chile |
| 1244003 | giant conifer aphids | Cinara spp. | Colony, Reserva Yerba Loca, Region Metropolitana, Chile |
| 1244004 | giant conifer aphids | Cinara spp. | Hedge with damage, Concha y Toro Winery near Santiago, Chile |
| 1244006 | eucalyptus borer | Phoracantha recurva | VI Region, Chile |
| 1244007 | Red gum lerp | Glycaspis brimblecombei | VI Region, Chile |
| 1244008 | Red gum lerp | Glycaspis brimblecombei | VI Region, Chile |
| 1244009 | pine and spruce adelgids | Pineus spp. | VI Region, Chile |
| 1244010 | metalic wood-boring beetle | Lasionota conjuntus | Sierra Bellavista, VI Region, Chile |
| 1244014 | giant conifer aphids | Cinara spp. | Reserva Natural Yerba Loca, Region Metropolitana, Chile. |
| 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. |
| 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. |
| 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. |
| 1254062 | hackberry bud gall maker | Pachypsylla celtidisgemma | Fort Collins, CO. |
| 1254080 | purple erineum maple mite | Eriophyes calcercis | Rossevelt NF, CO. |
| 1254082 | aspen leafminer | Phyllocnistis populiella | Leaf mining, Roosevelt 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 |
| 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. |
| 2500010 | bark beetle | Phloeosinus armatus | Adult maturation feeding, northern Cyprus. |
| 2500012 | Mediterranean pine engraver beetle | Orthotomicus erosus | |
| 2500013 | bark beetle | Phloeosinus armatus | |
| 2500015 | pine shoot beetle | Tomicus destruens | Group of old dead trees, northern Cyprus. |
| 2500016 | flatheaded or metallic wood borer | northern Cyprus | |
| 2500021 | seagrape sawfly | Sericoceros mexicanus | Cluster of pupal cases on sea grape, Roatan Island, Honduras |
| 2500022 | seagrape sawfly | Sericoceros mexicanus | Cluster of pupae on sea grape, Roatan Island, Honduras |
| 1307018 | pineapple mealybug | Dysmicoccus brevipes | Group of young Casuarina equisetifolia killed by root infestation of Dysmicoccus brevipes, north of Mombasa, Kenya. |
| 1307019 | pineapple mealybug | Dysmicoccus brevipes | Close-up of scales on root of Casuarina. |
| 1307020 | flatheaded or metallic wood borer | Larvae in pith of Sonneratia in mangrove forest south of Mombasa, Kenya | |
| 1232002 | pine processionary moth | Thaumetopoea pityocampa | Heavy defoliation and tent of mature larvae |
| 1232003 | pine processionary moth | Thaumetopoea pityocampa | Colony of mature larvae |
| 1232004 | pine processionary moth | Thaumetopoea pityocampa | Colony of mature larvae preparing to migrate to a pupation site. |
| 1232005 | pine processionary moth | Thaumetopoea pityocampa | Colony of sixth instar larvae in a "procession" toward a pupation site. |
| 1232008 | pine processionary moth | Thaumetopoea pityocampa | Tent and heavy defoliation on young pine |
| 1232009 | pine processionary moth | Thaumetopoea pityocampa | Heavy defoliation in a young pine plantation, northern Cyprus |
| 1232010 | pine processionary moth | Thaumetopoea pityocampa | Heavy defoliation and tents, northern Cyprus |
| 1232015 | pine processionary moth | Thaumetopoea pityocampa | Colony of sixth instar larvae. Note: Occurrence of this insect on Cupressus sempervirens is extremely unusual. |
| 1428130 | black pine bark beetle | Hylastes ater | Mortality of regeneration caused by maturation feeding of adults. |
| 1428131 | black pine bark beetle | Hylastes ater | Mortality of natural regeneration of pine caused by adult feeding. Forestal Valparasio, near Valparaiso |
| 1428132 | black pine bark beetle | Hylastes ater | Injury to root collar of seedling caused by adult maturation feeding. |
| 1428133 | black pine bark beetle | Hylastes ater | Breeding attack in the root collar of a young pine also infected by a black stain fungus, Leptographium spp. Central Chile |
| 1428136 | spiny caterpillar | Ormiscodes cinnamomea | Cuncuna espinuda (Spanish common name), colony of larvae feeding on foliage, central Chile |
| 1428137 | European spruce bark beetle | Ips typographus | Larvae and galleries in cambium of Picea abies, eastern Austria. |
| 1428140 | goldenhaired bark beetle | Hylurgus ligniperda | Adult maturation feeding damage on pine seedling, central Chile. |
| 1428146 | spiny caterpillar | Ormiscodes cinnamomea | Mature larva |
| 1428147 | goldenhaired bark beetle | Hylurgus ligniperda | under bark |
| 3943029 | European spruce bark beetle | Ips typographus | Salvage logging operation underway in stand killed by bark beetle, southwestern Lithuania |
| 3943030 | European spruce bark beetle | Ips typographus | southwestern Lithuania |
| 3943080 | metalic wood-boring beetless | Chalcophora spp. | |
| 3943081 | Asian chestnut gall wasp | Dryocosmus kuriphilus | Partially opened gall showing larvae. |
| 3943082 | chestnut weevil | Mecorhis cumulatus | |
| 3943083 | chestnut weevil | Mecorhis cumulatus | Damage to branch containing chestnut burrs by adult feeding. |
| 3943085 | butterflies, moths or skippers | Lepidoptera (Order) N/A | Frass and webbing on chestnut burr indicative of borer attack. |
| 3943086 | butterflies, moths or skippers | Lepidoptera (Order) N/A | Discoloed chestnut burr indicative of attack by a lepidopterous borer. |
| 3943088 | butterflies, moths or skippers | Lepidoptera (Order) N/A | on bark. |
| 3943091 | scarabs or scarab beetles | ||
| 3943100 | seagrape sawfly | Sericoceros mexicanus | Female and eggs, West Bay |
| 3943101 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae, West Bay |
| 3943102 | seagrape sawfly | Sericoceros mexicanus | Pair of female adults and eggs on seagrape leaf |
| 3943103 | seagrape sawfly | Sericoceros mexicanus | Single mature larva on seagrape leaf, West Bay |
| 3943104 | seagrape sawfly | Sericoceros mexicanus | First instar larvae on egg cluster |
| 3943105 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae on seagrape leaf |
| 3943106 | seagrape sawfly | Sericoceros mexicanus | Colony of larvae on seagrape leaf. |
| 3943107 | seagrape sawfly | Sericoceros mexicanus | on branch. |
| 3943059 | Japanese pine sawyer | Monochamus alternatus | Trap baited with alpha pinene and ethanol for trapping adults to determine if they are infected with pinewood nematode. |
| 3943060 | Japanese pine sawyer | Monochamus alternatus | Examining trap for adult beetles. |
| 3943072 | cedar bark beetles | Phloeosinus spp. | in freshly cut juniper, Ziarat Forest. |
| 3948027 | Douglas-fir beetle | Dendroctonus pseudotsugae | Woman processing log for construction of Buddhist temple. Logs at this site were Douglas-fir imported from the US and were infested with live beetles. |
| 3948028 | Douglas-fir beetle | Dendroctonus pseudotsugae | Examining Douglas-fir beetle logs imported from the US and infested with Douglas fir beetle. |
| 3948030 | pine processionary moth | Thaumetopoea pityocampa | Pyrennes Mountains |
| 3948058 | seed chalcid | Megastigmus spp. | Exit holes on juniper berries, Ziarat Forest. |
| 3948059 | aphids, leafhoppers, planthoppers, scale insects and allies | Scales on juniper berries, Ziarat Forest. | |
| 3943018 | Pine-tree lappet | Dendrolimus pini | on branch |
| 3948084 | eastern juniper bark beetle | Phloeosinus bicolor | Boring dust on windthrown juniper, Krisia Forest |
| 3948090 | leucaena psyllid | Heteropsylla cubana | Infestation on leucaena shoot. |
| 3948091 | leucaena psyllid | Heteropsylla cubana | Infestation on leucaena shoot. |
| 3948096 | gypsy moth | Lymantria dispar | Egg mass and hatching larvae. |
| 3948098 | Oriental scale | Aonidiella orientalis | on foliage |
| 3948099 | Oriental scale | Aonidiella orientalis | Infestation on shoot |
| 3943075 | bark beetle | Ips latidens | Galleries in windthrown spruce. |
| 3943071 | honey bee | Apis mellifera | Beehives used to collect wildflower honey, Ziarat Forest. |
| 3943019 | Pine-tree lappet | Dendrolimus pini | Mature larva on branch. |
| 3943020 | conifer sawfly | Diprion pini | Pulpwood stacks resulting from salvage logging of pine infested by the pine sawfly |
| 2912018 | pineapple mealybug | Dysmicoccus brevipes | group tree mortality caused by the root infesting scale insect, Africa |
| 2912019 | pineapple mealybug | Dysmicoccus brevipes | colony of root infesting scales, Africa |
| 2912020 | flatheaded or metallic wood borer | found in Mangrove forest on the coast, south of Mombasa | |
| 3943003 | mealybug | Oracella acuta | Infested breanch |
| 3943004 | mealybug | Oracella acuta | Infested branch |
| 3943005 | butterflies, moths or skippers | Lepidoptera (Order) N/A | |
| 3943008 | leucaena psyllid | Heteropsylla cubana | Heavy damage, Curieuse Island |
| 3943009 | leucaena psyllid | Heteropsylla cubana | La Digue Island |
| 3943011 | termites | tubes, Green Belt | |
| 3943014 | armored scale | Parlatoria crypta | on branch |
| 3943016 | Oriental scale | Aonidiella orientalis | Heavy damage |
| 3943017 | striped mealybug | Ferrisia virgata | |
| 3948001 | cypress aphid | Cinara cupressivora | Colony of nymphs and adults, near Muguga. |
| 3948002 | cypress aphid | Cinara cupressivora | Colony on branch. |
| 3948003 | cypress aphid | Cinara cupressivora | Cypress hedge damaged by cypress aphid infestation. |
| 3948004 | cypress aphid | Cinara cupressivora | Damage to cypress plantation near Muguga. |
| 3948005 | cypress aphid | Cinara cupressivora | |
| 3948006 | cypress aphid | Cinara cupressivora | Damage to a forest plantation. |
| 3948007 | cypress aphid | Cinara cupressivora | |
| 3948011 | cypress aphid | Cinara cupressivora | Damage to mature plantation, Rift Valley Escarpment. |
| 3948012 | cypress aphid | Cinara cupressivora | Feeding damage on indigenous juniper, lower slopes of Mount Kenya. |
| 3948014 | cypress aphid | Cinara cupressivora | Aerial view of tree mortality in cypress plantation near Eldoret |
| 3943032 | cypress aphid | Cinara cupressivora | Mr Mututu, Kenya Forest Research Institute demonstrates technique for release of Pauesia parasitoides for biocontrol of cypress aphid, western Kenya |
| 3943035 | red pine adelgid | Pineus borneri | Stem attack on young pine, west of Kabale. |
| 3943036 | red pine adelgid | Pineus borneri | Stem infestation on young pine, west of Kabale. |
| 3943042 | pineapple mealybug | Dysmicoccus brevipes | Group on young Casuarina seedlings killed by root scale infestation near Malindi. |
| 3943043 | pineapple mealybug | Dysmicoccus brevipes | Colony of scales on root system of Casuarina, near Malindi. |
| 3943044 | butterflies, moths or skippers | Lepidoptera (Order) N/A | Unidentified lepidopterous larva, defoliator of Fragipani, Port of Spain. |
| 3943049 | Nantucket pine tip moth | Rhyacionia frustrana | Attack in pine tip near Puerto Cabezas. |
| 1428087 | mountain pine beetle | Dendroctonus ponderosae | Group of ponderosa pines killed by mountain pine beetle. |
| 1428110 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae, southern Utah |
| 1428111 | engraver beetle | Ips acuminatus | Top kill caused by pine engraver beetle in Pinus sylvestris var. hamata, near Bakuriana. |
| 1428112 | engraver beetle | Ips acuminatus | Top kill in large Pinus sylvestris var. hamata, near Bakuriana. |
| 1428116 | engraver beetle | Ips acuminatus | Top kill of Pinus sylvestris var. hamata, near Bakuriana. |
| 1428099 | pinyon spindlegall midge | Pinyonia edulicola | galls. |
| 1428100 | poplar twiggall fly | Hexomyza schineri | gall on twigs. |
| 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. |
| 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 |
| 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. |
| 1428033 | goldenhaired bark beetle | Hylurgus ligniperda | Egg gallery in freshly cut pine stump, VIII Region. |
| 1428034 | goldenhaired bark beetle | Hylurgus ligniperda | Boring dust indicative of attack in fresh stump, VIII Region. |
| 1428028 | sacred fir looper | Evita hyalinaria hyalinaria | Adult resting on ground vegetation, near San Felipe del Progresso. |
| 1428029 | sacred fir looper | Evita hyalinaria hyalinaria | Aerial view of defoliation near San Felipe del Progresso. |
| 1428031 | goldenhaired bark beetle | Hylurgus ligniperda | Heavy attack in fresh logging slash |
| 1428013 | bark beetle | Pseudohylesinus variegatus | near Mexico City. |
| 1428021 | sacred fir looper | Evita hyalinaria hyalinaria | Aerial view of defoliation near San Felipe del Progresso |
| 1428022 | sacred fir looper | Evita hyalinaria hyalinaria | Aerial view of defoliation near San Felipe del Progresso |
| 1428023 | sacred fir looper | Evita hyalinaria hyalinaria | Aerial view of defoliation near San Felipe del Progresso. |
| 1428024 | sacred fir looper | Evita hyalinaria hyalinaria | Defoliation of sacred fir near San Felipe del Progresso. |
| 1428025 | sacred fir looper | Evita hyalinaria hyalinaria | Defoliation near San Felipe del Progresso. |
| 1428026 | sacred fir looper | Evita hyalinaria hyalinaria | Defoliation near San Felipe del Progresso. |
| 1428109 | southwestern tent caterpillar | Malacosoma incurvum | tent containing late instar larvae |
| 1428101 | oystershell scale | Lepidosaphes ulmi | |
| 1428032 | goldenhaired bark beetle | Hylurgus ligniperda | Adult, larvae and pupae in pine log |
| 1428027 | sacred fir looper | Evita hyalinaria hyalinaria | Adult resting on sacred fir with heavy defoliation. |
| 3943097 | pine processionary moth | Thaumetopoea pityocampa | Procession of second instar larvae moving to a new feeding site, Turkish Cyprus |
| 3943098 | lady beetle | Ladybird beetle feeding on a colony of scale insects, Republic of Cyprus | |
| 3943099 | lesser pine shoot beetle | Tomicus minor | Turkish Cyprus |
| 3948015 | cypress aphid | Cinara cupressivora | Aerial view of cypress hedge around homestead killed by cypress aphid. This type of damage poses a high risk of fire damage. |
| 3948017 | Masson pine caterpillar | Dendrolimus punctatus | |
| 3948022 | Masson pine caterpillar | Dendrolimus punctatus | Entomologist removes branch samples from infested tree for larval count. |
| 3948029 | Douglas-fir beetle | Dendroctonus pseudotsugae | Logs imported from the US for construction of a buddhist temple and infested with Douglas-fir beetle. |
| 3943065 | Masson pine caterpillar | Dendrolimus punctatus | Examining trap baited with female pheromone to monitor male population levels. |
| 2252030 | Douglas-fir tussock moth | Orgyia pseudotsugata | Aerial view of defoliation |
