Radial growth in grand fir and Douglas-fir related to defoliation by the Douglas-fir tussock moth in the Blue Mountains outbreak
By: B. E. Wickman, D. L. Henshaw, and S. K. Gollob
Contributors: Henshaw, D. L., joint author; Gollob, S. K., joint author; Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States. Forest Service
Series: USDA Forest Service research paper PNW -- 269
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1980
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 23
Subjects: Defoliation; Douglas fir -- Diseases and pests -- Oregon; Douglas fir -- Diseases and pests -- Washington (State); Douglas-fir tussock moth; Fir -- Diseases and pests -- Oregon; Fir -- Diseases and pests -- Washington (State)
Notes: Issued May 1980

Bibliography: p. 19