Economic thresholds and injury levels of Russian wheat aphid, Diuraphis noxia (Homoptera: Aphididae), in dryland wheat and barley in eastern Washington State
By: by William Brian Kreowski.
Published: 1992
Language: eng
Number of pages: 51
Subjects: Russian wheat aphid -- Economic aspects.; Wheat -- Diseases and pests.; Barley -- Diseases and pests.
Notes: Typescript.

Thesis (M.S.)--Washington State University, 1992.

Includes bibliographical references (leaves 35-38).

WSU:"Department of Entomology."