Search
You searched for:
Start Over
Forestry
Remove constraint Forestry
Author
United States. Forest Service. Northern Region. State & Private Forestry
Remove constraint Author: United States. Forest Service. Northern Region. State & Private Forestry
Subject
Insect surveys -- Idaho
Remove constraint Subject: Insect surveys -- Idaho
Subject
Western spruce budworm -- Montana
Remove constraint Subject: Western spruce budworm -- Montana
1 - 2 of 2
Search Results
-
2. [Article] Potential for defoliation by western spruce budworm in northern Idaho and Montana, 1977
Epidemic populations of the western spruce budworm persist in the Northern Region. Aerial surveys made in August 1976 showed a decline in the acreage of aerially visible defoliation. In northern Idaho, ...Citation