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Filtering by: Subject Defoliation -- Idaho -- Clearwater National Forest

Some observations on the impact of western spruce budworm on the Clearwater National Forest, Idaho

Creator:

Franc, G. C., Underwood, P. W., Dewey, Jerald E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The current western spruce budworm, Choristoneura occidentalis Freeman, outbreak on the Clearwater National Forest was first detected in 1966. Since then, the infestation has increased to epidemic proportions with over 500,000 acres of State, Federal, and private forest land visibly defoliated. In addition, incipient budworm populations are present throughout much...

Resource Type:

Technical Report