Beneficial organisms associated with Pacific Northwest crops
By: Robert L. Stoltz ... [et al.]
Contributors: Stoltz, Robert L.; Oregon State University. Extension Service.; Washington State University. Cooperative Extension.; University of Idaho. Cooperative Extension Service.; United States. Dept. of Agriculture.
Series: PNW -- 343.; PNW (Series) -- 343.
Publisher: Oregon State University Extension Service; Washington State University Cooperative Extension; University of Idaho Cooperative Extension Service; U.S. Dept. of Agriculture
Published: 1990
Place of publication: [Corvallis, Or.]; [Olympia, Wash.]; [Moscow, Idaho]; [Washington, D.C.]
Language: eng
Subjects: Beneficial insects.
Notes: Title from cover.

"A Pacific Northwest extension publication - Idaho, Oregon, Washington."

"January 1990."