Pear decline
By: prepared by M.N. Westwood.
Contributors: Oregon State University. Cooperative Extension Service.
Series: FS -- 13.; Fact sheet (Oregon State University. Cooperative Extension Service) -- 13.
Publisher: Oregon State University, Cooperative Extension Service
Published: 1962
Place of publication: [Corvallis, OR]
Language: eng
Subjects: Pear -- Diseases and pests.; Psylla.
Notes: Caption title.

"August, 1962"