Powdery mildew of rose
By: [prepared by Ralph S. Byther].
Edition: Rev.
Series: Plant diseases; Extension mimeo -- 3067.; Extension mimeo (Washington State University. Cooperative Extension) -- 3067.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1979
Place of publication: Pullman
Language: eng
Notes: Caption title.

"Revised March 1979."

"E.M. 3067."