Cooley spruce gall aphid.
Series: Insect answers; Extension mimeo -- 4119.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 4119.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1977
Place of publication: Pullman
Language: eng
Subjects: Aphids; Spruce -- Diseases and pests
Notes: Caption title.

"Arthur L. Antonelli and R. Lee Campbell"--P. 2.

"June 1977"--P. [1].

"EM 4119"--P. [1].