Dave Powell's Images
Title: SilviculturistOrganization: USDA Forest Service
Unit: Umatilla National Forest
Country: United States
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| 31 Images of 6 Subjects | View Subject List | View Image Descriptions | View Thumbnails |
| 31 Images |
1207028 fir engraver Scolytus ventralis Infestation Dave Powell |
1207026 Douglas-fir beetle Dendroctonus pseudotsugae Damage Dave Powell |
0976078 Douglas-fir beetle Dendroctonus pseudotsugae Damage Dave Powell |
1207025 flatheaded fir borer Phaenops drummondi Larva(e) Dave Powell |
1207037 white pine weevil Pissodes strobi Damage Dave Powell |
1207031 white pine weevil Pissodes strobi Damage Dave Powell |
1207043 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
1207045 mountain pine beetle Dendroctonus ponderosae Larva(e) Dave Powell |
1207035 white pine weevil Pissodes strobi Damage Dave Powell |
1207048 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
1207047 mountain pine beetle Dendroctonus ponderosae Galleries Dave Powell |
1207049 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
1207036 white pine weevil Pissodes strobi Damage Dave Powell |
1207054 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
1210093 mountain pine beetle Dendroctonus ponderosae Feature(s) Dave Powell |
1207034 white pine weevil Pissodes strobi Larva(e) Dave Powell |
1207038 white pine weevil Pissodes strobi Damage Dave Powell |
1210097 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
0806067 fir engraver Scolytus ventralis Damage Dave Powell |
1207029 fir engraver Scolytus ventralis Damage Dave Powell |
1207027 Ips engraver beetles Ips spp. Damage Dave Powell |
1207040 white pine weevil Pissodes strobi Adult(s) Dave Powell |
1207055 mountain pine beetle Dendroctonus ponderosae Damage Dave Powell |
1207052 mountain pine beetle Dendroctonus ponderosae Prescribed Fire Dave Powell |
1207046 mountain pine beetle Dendroctonus ponderosae Egg(s) Dave Powell |
1207050 mountain pine beetle Dendroctonus ponderosae Harvesting Dave Powell |
1207051 mountain pine beetle Dendroctonus ponderosae Harvesting Dave Powell |
1207044 mountain pine beetle Dendroctonus ponderosae Monitoring Dave Powell |
1207033 white pine weevil Pissodes strobi Larva(e) Dave Powell |
1207030 white pine weevil Pissodes strobi Adult(s) Dave Powell |
0976038 mountain pine beetle Dendroctonus ponderosae Display or Sign Dave Powell |
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