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Comparison of Western Spruce Budworm Populations and Damage on Grand Fir and Douglas-fir Trees

Valentine M. Carolin

Published: 1975

Total Pages: 24

USDA Forest Service Research Paper PNW.

Published: 1974

Total Pages: 630

Budbreak Sprays for Site Preparation and Release from Six Coastal Brush Species

Ronald Eugene Stewart

Published: 1974

Total Pages: 642

Distribution of Western Spruce Budworm Egg Masses on White Fir and Douglas-fir

J. M. Schmid

Published: 1982

Total Pages: 12

USDA Forest Service General Technical Report PNW.

Published: 1977

Total Pages: 224

Technical Bulletin

Published: 1979

Total Pages: 356

Comparative Autecological Characteristics of Northwestern Tree Species

Don Minore

Published: 1979

Total Pages: 80

Larval Densities and Trends of Insect Species Associated with Spruce Budworms in Buds and Shoots in Oregon and Washington

Valentine M. Carolin

Published: 1980

Total Pages: 24

Monthly Catalog of United States Government Publications

Published: 1976

Total Pages: 1194

Research Paper PNW.

Published: 1978

Total Pages: 348