Life history and habits of the mealy plum aphis
By: by W.M. Davidson
Series: Bulletin / United States Department of Agriculture -- no. 774; Bulletin of the U.S. Department of Agriculture -- no. 774.
Publisher: U.S. Dept. of Agriculture
Published: 1919
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Fruit; Diseases and pests; Mealy plum aphid
Notes: Caption title.

"April 28, 1919."

"Professional paper."

Bibliography: p. 16.