The parasite complex of the pea aphid, Acyrthosiphon pisum (Harris) on alfalfa in western Oregon
By: by Alfred Gordon Dickie.
Published: 1970
Language: eng
Number of pages: 99
Subjects: Alfalfa -- Disease and pest resistance.; Pea aphid.
Notes: Typescript.

Thesis (M.A.)--Oregon State University, 1970.

Bibliography: leaves 88-92.