Comparison of western spruce budworm populations and damage on grand fir and Douglas-fir trees
By: V. M. Carolin, W. K. Coulter
Contributors: Coulter, W. K.; United States. Pacific Northwest Forest and Range Experiment Station, Portland, Oreg.
Series: USDA Forest Service research paper PNW -- 195
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1975
Place of publication: Portland, Or
Language: eng
Number of pages: 16
Subjects: Defoliation.; Douglas fir -- Diseases and pests.; Fir -- Diseases and pests.; Spruce budworm.
Notes: Cover title

Tables

Bibliography: p. 16