influence of alfalfa on the abundance of the pea aphid on peas grown for canning in southeastern Washington
By: by R.D. Eichmann and R.L. Webster.
Contributors: Webster, R. L. b. 1885.
Series: Bulletin / State College of Washington. Agricultural Experiment Station -- no. 389.; Bulletin (State College of Washington. Agricultural Experiment Station) -- no. 389.
Publisher: State College of Washington, Agricultural Experiment Station
Published: 1940
Place of publication: Pullman, Wash
Language: eng
Number of pages: 36
Subjects: Peas -- Diseases and pests -- Washington (State); Pea aphid -- Washington (State)
Notes: Cover title.

Bibliography: p. 34-36.