Fire blight prediction system for pear growers in eastern Washington.
Series: Plant diseases; Extension mimeo -- 4246.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 4246.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1977
Place of publication: Pullman
Language: eng
Subjects: Fire-blight
Notes: Caption title.

"Ronald P. Covey, Jr."--P. 2.

"June 1977."

"EM 4246"--P. [1].