Insect powder
By: by C.C. McDonnell, R.C. Roark and G.L. Keenan
Contributors: Roark, R. C. (Ruric Creegan); Keenan, George Lawrence, 1886-
Series: Bulletin / United States Department of Agriculture -- no. 824; Bulletin of the U.S. Department of Agriculture -- no. 824.
Publisher: U.S. Dept. of Agriculture
Published: 1920
Place of publication: Washington, D.C
Language: eng
Number of pages: 100
Subjects: Insecticides; Botanical insecticides; Botanical pesticides; Biopesticides; Biochemistry; Insecticidal properties
Notes: Caption title.

"June 3, 1920."

"Professional paper."

Bibliography: p. 83-100.