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Filtering by: Subject Botany -- Northwestern States Creator Bousfield, Wayne E.

Potential for larch casebearer defoliation in the Northern Region, 1972

Creator:

Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The larch casebearer Coleophora laricella (Hbn.) is now established throughout all western larch stands in Region 1. Population levels have begun to fluctuate in some of the older infested stands; however, it is still on the increase in more recently invaded territory. During the past 2 years work was begun...

Resource Type:

Technical Report

Full Text:

of State and Private • Forestry. Report 71-2. • 0 2/ Ciesla, W. M., and W. E. Bousfield. 1971
Establishment and distribution of the larch casebearer parasite, Agathis pumila in Idaho, Montana, Washington, Oregon and British Columbia

Creator:

Bousfield, Wayne E.

Resource Type:

Technical Report

Full Text:

Columbia USDA - FOREST SERVICE- NORTHERN REGION Division of State and Private Forestry Missoula, Mt