Effect of defoliation by the Douglas-fir tussock moth on moisture stress in grand fir and subsequent attack by the fir engraver beetle (Coleoptera: scolytidae)
By: by L.C. Wright and A.A. Berryman
Contributors: Berryman, A. A. (Alan Andrew), 1937-; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW -- 323; USDA Forest Service research note PNW -- 323.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1978
Place of publication: Portland, Or
Language: eng
Number of pages: 14
Subjects: Plant-water relationships; Scolytus ventralis; Abies grandis; Douglas fir tussock moth; Diseases and pests
Notes: Caption title.

"November 1978."

Includes bibliographical references (p. 13-14).