The grape leafhopper in the Lake Erie Valley
By: by Fred Johnson
Series: Bulletin of the U.S. Department of Agriculture -- no. 19; Bulletin of the U.S. Department of Agriculture -- no. 19.
Publisher: U.S. Dept. of Agriculture
Published: 1914
Place of publication: Washington, D.C
Language: eng
Number of pages: 47
Subjects: Diseases and pests; Grapes; Grape leaf-hopper
Notes: Caption title.

"January 24, 1914."

"Professional paper."