Diseases of  Alfalfa  Corn  Soybeans  Wheat

Insect Pests of  Alfalfa  Corn  Soybeans  Wheat

Weeds  Identify  Monocots  Dicots  Grasses  Sedges  Lilies  Broadleaf

Scout Info
Kentucky IPM Pest Information Pages

Corn Leaf Aphid: Kentucky Corn IPM

Corn Leaf Aphid


Aphids are small, pear-shaped insects with soft bodies. They vary from blue-green to gray and have piercing-sucking mouthparts. They occur in sometimes very dense clusters on the plant. Most aphids in the cluster will be wingless, but some may have small, clear wings.


Corn becomes stunted or wilted, especially when plants are under drought stress. Aphids secrete a sugary substance known as "honeydew". Tassels of moderately to heavily infested plants may be quite sticky from accumulations of secretion. Aphids cause the greatest damage while feeding in the whorl.

Pest Activity

Please note: No pest activity data currently available for corn leaf aphid. You may wish to contact your county extension agent or agricultural consultant for information tailored to your locality.

IPM Techniques and Scouting Procedures

This site was created and is maintained by Pat Dillon, Department of Entomology, University of Kentucky, S-225 Agricultural Science Ctr North, Lexington, KY USA  40546-0091 (phone: 859/257-3571). Please send questions or suggestions to: pdillon@uky.edu