The corn root-aphis and methods of controlling it
By: John J. Davis
Series: Farmers' bulletin / United States Department of Agriculture -- no. 891; Farmers' bulletin (United States. Department of Agriculture) -- no. 891
Publisher: U.S. Dept. of Agriculture
Published: 1917
Place of publication: Washington, D.C
Language: eng
Number of pages: 12
Subjects: Corn root-aphis; Control; Corn; Diseases and pests
Other titles: Corn root aphis and methods of controlling it.
Notes: Cover title.

"Contribution from the Bureau of Entomology."

Bibliography: p. 12.

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