Key to adult bark beetles commonly associated with white spruce stands in Interior Alaska
By: by Roy C. Beckwith
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW -- 189; USDA Forest Service research note PNW -- 189.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1972
Place of publication: Portland, Or
Language: eng
Subjects: Bark beetles; White spruce; Identification; Diseases and pests
Notes: Caption title.

"September 1972."

Includes bibliographical references (p. 2).