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Department of Entomology

Department of Entomology
123 W. Waters Hall
1603 Old Claflin Place
Kansas State University
Manhattan KS 66506-4004

785-532-6232 fax

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Soybean Insects

Corn Earworm, a.k.a. 'podworm' Helicoverpa zea.


Adult moth.


Corn earworm feeding on soybean pod.


Pods damaged by corn earworm.

Corn earworm damage to soybeans occurs from August through September. Significant damage may occur when large larvae feed on pods consuming the developing seeds. Fields should be checked for small worms as flowering begins. Control measures should be implemented when an average of one small worm per foot of row is detected.

Please refer to the most recent version of the Soybean Insect Management Guide for control options.

Page last updated 11/01/2013 by J.P. Michaud.