Downy mildew of onion.
Contributors: Shaw, Charles Gardner.
Series: Plant diseases; Extension bulletin -- 1310.; Extension bulletin (Washington State University. Cooperative Extension) -- 1310.
Publisher: Cooperative Extension, College of Agriculture & Home Economics, Washington State University
Published: 1985
Place of publication: Pullman, Wash
Language: eng
Subjects: Onions -- Diseases and pests; Downy mildew diseases; Downy mildew diseases -- Control
Notes: Title from caption.

"By Dennis A. Johnson ... and C. Gardner Shaw ... Published January 1985"--P. [2].