Final report on the 1952 blowdown - bark beetle survey in the Douglas-fir region of Oregon and Washington
By: by A. W. Greeley, K. H. Wright and R. B. Pope.
Contributors: Wright, K. H.; Pope, R. B.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher: U. S. Dept. of Agriculture
Published: 1953
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir -- Diseases and pests.; Douglas fir beetle.; Windfall (Forestry) -- Northwest, Pacific.
Notes: On cover: "A cooperative project under the supervision of Pacific Northwest Forest and Range Experiment Station, U. S. Forest Service, and Bureau of Entomology and Plant Quarantine, Portland Forest Insect Laboratory."

Bibliography: p. 30.