The green-bug or spring grain-aphis : how to prevent its periodical outbreaks - NALDC

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Main content area

The green-bug or spring grain-aphis : how to prevent its periodical outbreaks

Author:: Walton, William Randolph
Source:: USDA
Year:: 1921
Subject:: Greenbug, Control, Grain, Diseases and pests, life history, parasitoids, grain crops, Lysiphlebus testaceipes, Schizaphis graminum, biological control agents, grains, and natural enemies
Language:: English
Publisher:: U.S. Dept. of Agriculture
Series:: Farmers' bulletin (United States. Department of Agriculture) ; no. 1217
Collection:: Organic Roots Collection
Permanent URL:: http://handle.nal.usda.gov/10113/33485