Tree hoppers and their control in the orchards of the Pacific Northwest
By: by M. A. Yothers
Series: Circular / United States Department of Agriculture -- no. 106; Circular (United States. Dept. of Agriculture) -- no. 106.
Publisher: U.S. Dept. of Agriculture
Published: 1931
Place of publication: Washington, D.C
Language: eng
Number of pages: 15
Subjects: Fruit; Diseases and pests
Notes: Caption title.

"Rev. March, 1931."

Includes bibliographical references.