Douglas-fir tussock moth
Orgyia pseudotsugata (McDunnough)

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    Damage (27)
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    Infestation (16)
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    Conifer (114)
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    William M. Ciesla (44)
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Image Descriptor Description
5495042 Damage 2008 shoot growth on white fir following defoliation and shoot dieback in 2007
5495033 Damage 2008 shoot growth on white fir following defoliation and shoot dieback in 2007
5495022 Damage Bear Mountain tussock moth outbreak(2007). Mount Shasta in background.
1678036 Damage
1241557 Adult(s) Males fly to the females for mating.
1678032 Adult(s) male
0177073 Damage Single tree defoliation.
2253088 Adult(s) female and eggs
2253042 Damage
2252028 Egg(s) masses and old pupal case
0949052 Larva(e)
0949043 Larva(e)
1468035 Cocoon(s)
1678023 Egg(s)
0949040 Damage defoliation of fir
1468040 Egg(s)
1137046 Damage A defoliated white fir, the preferred host, stands next to a Red fir, Abies magnifica, a non-host.
1212015 Damage Indian Creek area, Heppner RD, Umatilla NF, 2001
1441053 Damage defoliation
1441054 Damage in 1983
1441052 Larva(e) August 1973
1441051 Larva(e)
1441050 Egg(s) and young larvae
1212014 Larva(e) Heppner RD, Umatilla NF
1678034 Damage
1587117 Cocoon(s)
1587105 Damage
1587103 Damage
1468001 Infestation defoliated grand fir
1468039 Infestation 1964
1678033 Research egg survey
1441055 Trap(s) Pheromone Trap
5387812 Larva(e) 5th instar larva of the Douglas-fir tussock moth, Orgyia psuedotsugata, on white fir, A. concolor. 7/11/07.
5387813 Larva(e) 5th instar larva of the Douglas-fir tussock moth, Orgyia psuedotsugata, on white fir, A. concolor. 7/11/07.
5387814 Larva(e) 5th instar larva of the Douglas-fir tussock moth, Orgyia psuedotsugata, on white fir, A. concolor. 7/11/07.
5387815 Larva(e) 4th instar larva of the Douglas-fir tussock moth, Orgyia psuedotsugata, on white fir, A. concolor. 6/27/07.
5382398 Damage Aerial view of defoliation
1254028 Egg(s) Egg mass
1254029 Larva(e) Mature larva
1263053 Adult(s) Adult female (left) and male (right)
0758200 Research 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.
2122030 Egg(s) Egg mass on pupal case, near Aspen Park, CO
2122031 Egg(s) Egg mass on pupal case on ponderosa pine, near Aspen park, CO, December 2005
5346007 Infestation Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007
5346008 Infestation Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007
5346009 Infestation Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007
5346010 Infestation Aerial view of heavy defoliation, Bear Creek, South Platte River Basin, CO, August 2007
5346011 Infestation Aerial view of heavy defoliation, Santa Clara Canyon, Santa Clara Indian Reservation, NM, July 2007
5346030 Infestation Heavy defoliation, Douglas Co, CO, August 2007
5346082 Cocoon(s) Left to Right: Female adult, egg-mass and pupal cases, Douglas Co,CO, August 2007
5346083 Larva(e) Mature larva
5346084 Adult(s)
5346085 Adult(s)
5346086 Adult(s)
5346087 Cocoon(s) Coccons on Douglas fir branches, Douglas Co, CO, August 2007
5346088 Cocoon(s) Cocoons on Douglas-fir branches, Douglas Co, CO, August 2007
0758199 Research 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.
5135043 Infestation Aerial view of defoliation, Aspen Park, CO
5135044 Infestation Aerial view of defoliation, Aspen Park, CO
5135045 Infestation Aerial view of defoliation, Aspen Park, CO, 2006
5135076 Infestation Defoliation in urban area near Aspen Park, CO, 2006
5135077 Infestation Defoliation in urban area near Aspen Park, CO
5135078 Damage Defoliation in urban area near Aspen Park, CO
5135079 Infestation Defoliation in urban area near Aspen Park, CO
5135080 Infestation Defoliation in urban area near Aspen Park, CO
5135081 Infestation Defoliation in urban area near Aspen Park, CO
5135082 Damage Partial defoliation of Douglas-fir, North turkey Creek near Aspen Park, CO
5135083 Damage Partial defoliation of Douglas-fir, North Turkey Creek near Aspen Park, CO
5135084 Larva(e) Mature larva, Aspen Park, CO
5135085 Larva(e) Mature larva, Aspen Park, CO
5135086 Larva(e) Mature larva, Aspen Park, CO
5135087 Larva(e) Mature larva, Aspen Park, CO
5135088 Larva(e) Mature larva, Aspen Park, CO
1468036 Monitoring Galen Trostle surveying for egg masses with polesaw; 1973
1468042 Larva(e)
1468033 Trap(s)
1468034 Larva(e)
1468037 Cocoon(s)
1468044 Adult(s) Female
1468045 Life Cycle larvae emerging from egg mass
2122028 Damage Aerial view of defoliation near Aspen Park, CO
2122029 Egg(s) Egg mass on pupal case, near Aspen Park, CO
1248027 Cocoon(s) Aspen Park, CO
1248028 Larva(e) Aspen Park, CO
1248029 Larva(e) Aspen Park, CO
1248030 Damage Aerial view of defoliation in Douglas-fir near Aspen Park, CO
0177071 Damage Defoliation from the previous year.
0177072 Damage Defoliation from the current year.
1254030 Damage Heavy defoliation of grand fir and Douglas fir, Wallowa Whitman NF, OR.
1241554 Larva(e) A mature larva has "tussocks" of hair on its back.
1241556 Adult(s) The females are flightless.
1241555 Egg(s) Eggs are held in masses by a gelatinous substance containing hairs from the female's body.
1137047 Feature(s) Silken webbing from dispersing first instar larvae blankets white fir trees during an outbreak. Plumas County, California.
1441049 Adult(s) male (left) female (right)
2252030 Damage Aerial view of defoliation
2254043 Adult(s) female on cocoon
2252027 Life Cycle female laying eggs
2252029 Larva(e)
2252031 Biological Control virus killed larva hanging from branch
2253025 Adult(s)
2253026 Adult(s) female (top) and male
2253041 Life Cycle moths emerging from pupal cases on side of building
0949041 Egg(s) mass with newly hatched larvae
1678019 Adult(s) male
1678020 Pupa(e) removed from cocoon
1678021 Damage current feeding
1678022 Damage tree mortality, La Grande, OR
1678024 Adult(s) female
1678025 Larva(e)
1678026 Pupa(e) new cocoons on twig, no eggs
1678027 Egg(s) mass
1678028 Biological Control virus killed larvae
1678029 Biological Control natural virus killed
1678030 Research virus survey-infected larva
1678031 Research virus survey-infecting larva
1678035 Damage Umatilla National Forest, Oregon

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