The spotted alfalfa aphid.

Bibliographic Details
Corporate Author: United States. Agricultural Research Service
Format: Government Document Book
Language:English
Published: Washington : U. S. Department of Agriculture, 1957.
Series:ARS (Series) (United States. Agricultural Research Service) ; 22-39.
Description
Item Description:"May 1957"
"ARS special report"
Physical Description:8 pages ; 26 cm.