Powdery mildew on potato
By: [Otis C. Maloy and G.D. Easton]
Series: Plant diseases; Extension mimeo -- 2935.; Extension mimeo (Washington State University. Cooperative Extension) -- 2935.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1968
Place of publication: Pullman
Language: eng
Notes: Caption title.

"April 1968."

"E.M. 2935."