The red spider on hops in the Sacramento Valley of California
By: by William B. Parker
Series: Bulletin / U.S. Dept. of Agriculture. Bureau of Entomology -- no. 117; Bulletin (United States. Bureau of Entomology) -- no. 117.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1913
Place of publication: Washington, D.C
Language: eng
Number of pages: 41
Subjects: Spider mites; Hops; Diseases and pests
Notes: Issued May 3, 1913.

Includes index.

Bibliography: p. 35-36.