Powdery mildew of grapes in Washington.
Series: Plant diseases; Extension mimeo -- 4478.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 4478.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1979
Place of publication: Pullman
Language: eng
Subjects: Mildew; Downy mildew diseases
Notes: Caption title.

"Prepared by M. Ahmedullah"--P. 2.

"September 1979"--P. [1].

"EM 4478"--P. [1].