| 0976064 |
cone worms |
Dioryctria spp. |
Salida Ranger District |
| 0976065 |
western spruce budworm |
Choristoneura freemani |
distant view of mortality |
| 1207026 |
Douglas-fir beetle |
Dendroctonus pseudotsugae |
Distant view of red trees killed by beetle, upper Meacham Creek from Big Saddle, Walla Walla Ranger District, October 1977 |
| 0976078 |
Douglas-fir beetle |
Dendroctonus pseudotsugae |
mortality at Spring Creek area, Walla Walla Ranger District |
| 1207037 |
white pine weevil |
Pissodes strobi |
Close-up view of adult weevil feeding damage on branch |
| 0806071 |
western spruce budworm |
Choristoneura freemani |
Starr Ridge area mortality. Bear Valley Ranger District, Malheur National Forest, northeastern Oregon |
| 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 |
| 1207048 |
mountain pine beetle |
Dendroctonus ponderosae |
Close-up of bark showing exit holes and some pitch tubes with frass |
| 1207049 |
mountain pine beetle |
Dendroctonus ponderosae |
Distant view showing pine stand killed by beetle, near Oregon State Highway 244 east of Ukiah |
| 1207036 |
white pine weevil |
Pissodes strobi |
branch showing adult weevil feeding |
| 1207054 |
mountain pine beetle |
Dendroctonus ponderosae |
Granite Creek area showing pine killed by beetle, Baker Ranger District |
| 0976061 |
poplar petiolegall aphid |
Pemphigus populitransversus |
large gall at Salida 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 |
| 1210057 |
sugar pine tortrix |
Choristoneura lambertiana |
seedling with damaged top |
| 1207038 |
white pine weevil |
Pissodes strobi |
sapling or small pole showing terminal leader damaged by weevil feeding |
| 1210097 |
mountain pine beetle |
Dendroctonus ponderosae |
Old group of trees killed, Garber Creek area, South Platte RD, Pike NF |
| 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 |
| 0976066 |
western spruce budworm |
Choristoneura freemani |
1951 |
| 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 |
| 1207027 |
Ips engraver beetles |
Ips spp. |
|
| 0976074 |
gall midges |
|
South Park Ranger District |
| 1207055 |
mountain pine beetle |
Dendroctonus ponderosae |
pine stand killed by beetle, La Grande Ranger District |
| 1359042 |
western spruce budworm |
Choristoneura freemani |
View of unsalvaged area about 10 years after the end of a major outbreak, near Owens Creek project area, North Fork John Day Ranger District, Umatilla National Forest, northeastern Oregon |
