Identification of aphids on small grains
By: [Vanelle Peterson, Keith S. Pike, Arthur H. Retan]
Contributors: Pike, Keith S.
Series: Extension bulletin -- 0993.; Extension bulletin (Washington State University. Cooperative Extension) -- 993.
Publisher: Cooperative Extension, College of Agriculture, Washington State University
Published: 1982
Place of publication: Pullman, Wash
Language: eng
Subjects: Aphids -- Identification; Grain -- Diseases and pests -- Washington (State)
Notes: Caption title.

"January 1982"--P. [2].