Department of Entomology

College of Agriculture and Life Sciences


Threecornered Alfalfa Hopper Threshold

The threshold for threecornered alfalfa hopper is one per sweep when soybean is less than 10 inches tall. It may be a pest at extremely high densities during the reproductive stages of soybean, but this has not been detected.



Field Crop Entomology Home


NC Ag Chemical Manual

NCSU Insect Notes

Corn Production Guide

Vernon James Center
IPM North Carolina

Cotton Insect Corner

Small Grain Production Guide

NCSU Entomology




Current research and updates are performed by Dr. Dominic Reisig (Extension Entomologist) and Steven Roberson (Research Specialist). Based on original material of Dr. John Van Duyn (Extension Entomologist, Emeritus).
Information may be used with proper citation