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    Bark Beetles and Phloem Feeding Insects (2)
    Foliage Feeding Insects (2)

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    Coleoptera (3)
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Hexapoda (including Insecta)

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Atelocerata
Class: Hexapoda (including Insecta)
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15 Images of 6 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1207031 white pine weevil Pissodes strobi View of seedling showing effect of repeated damage
1207043 mountain pine beetle Dendroctonus ponderosae Close-up of pine bole showing copious attack of beetle, Kelly Prairie, Heppner Ranger District, March 1977
1207035 white pine weevil Pissodes strobi Close-up of branch showing holes in bark from weevil feeding
1207054 mountain pine beetle Dendroctonus ponderosae Granite Creek area showing pine killed by beetle, Baker Ranger District
1212015 Douglas-fir tussock moth Orgyia pseudotsugata Indian Creek area, Heppner RD, Umatilla NF, 2001
0806073 western spruce budworm Choristoneura freemani two trees side by side; one dead, one alive; Both trees were exposed to intense feeding by western spruce budworm; one was completely defoliated, whereas the other sustained relatively minor damage, suggesting by their proximity that some sort of genetic resistance may be involved. Starkey Experimental Forest, Wallowa-Whitman National Forest, northeastern Oregon
1207038 white pine weevil Pissodes strobi sapling or small pole showing terminal leader damaged by weevil feeding
0806067 fir engraver Scolytus ventralis Red foliage stage. Malheur National Forest, northeastern Oregon
1207029 fir engraver Scolytus ventralis Small group of fir killed by beetle in Little Bald Mountain area, Walla Walla Ranger District, 1976
0976077 sawflies South Platte Ranger District
0806070 western spruce budworm Choristoneura freemani with 4-foot topkill from defoliation. Malheur National Forest, northeastern Oregon
0806065 western spruce budworm Choristoneura freemani Saplings & small poles with topkill from defolliation. Malheur National Forest, northeastern Oregon
0806066 western spruce budworm Choristoneura freemani Mortality. Aldrich Mountains, Bear Valley Ranger District, Malheur National Forest, northeastern Oregon
0806064 western spruce budworm Choristoneura freemani seedling missing about 50% of its foliage from defoliation. Malheur National Forest, northeastern Oregon
1207055 mountain pine beetle Dendroctonus ponderosae pine stand killed by beetle, La Grande Ranger District

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