Response of the engraver beetle, Ips Perturbatus, to semiochemicals in white spruce stands of interior Alaska
By: Richard A. Werner
Contributors: Pacific Northwest Research Station (Portland, Or.)
Series: Research paper PNW -- RP-465; Research paper PNW -- 485
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1993
Place of publication: Portland, Or. (333 S.W. First St., P.O. Box 3890, Portland 97208-3890)
Language: eng
Format: Microform
Subjects: Bark beetles -- Effect of chemicals on -- Alaska; Semiochemicals -- Physiological effect; Pheromones -- Physiological effect; White spruce -- Diseases and pests -- Control -- Alaska
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 94-1295-M

"May 1993."

Includes bibliographical references (p. 5-7)

Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1994] 1 microfiche : negative