Effect of low temperature on the hatching of gipsy-moth eggs
By: by John N. Summers
Series: Bulletin / United States Department of Agriculture -- no. 1080; Bulletin of the U.S. Department of Agriculture -- no. 1080.
Publisher: U.S. Dept. of Agriculture
Published: 1922
Place of publication: Washington, D.C
Language: eng
Number of pages: 14
Subjects: Gypsy moth; Control
Notes: Caption title.

"July 22, 1922."