Effect of defoliation by the Douglas-fir tussock moth on moisture stress in grand fir and subsequent attack by the fir engraver beetle (Coleoptera: scolytidai)
By: by L. C. Wright and A. A. Berryman
Contributors: Berryman, A. A. 1937- , joint author; Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States. Forest Service
Series: USDA Forest Service research note PNW ; 323
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1978
Place of publication: Portland, Or
Language: eng
Number of pages: 14
Subjects: Bark beetles -- Idaho; Bark beetles -- Washington (State); Defoliation; Douglas-fir tussock moth; Fir -- Diseases and pests -- Idaho; Fir -- Diseases and pests -- Washington (State)
Notes: Issued Nov. 1978

Bibliography: p. 13-14