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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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Wheat Insects

Grasshoppers (Orthoptera)


There are many species of grasshoppers in Kansas, and not all are crop pests, although most have the potential to inflict damage if present in large numbers. Damage can occur in fall or spring. Typically, grasshoppers invade from field margins as fall planted wheat emerges. Occasionally, heads may be damaged before harvest. Vegetation bordering wheat fields should be inspected 10 days before planting. Counts of seven to 12 grasshoppers per square yard signal potential problems. Once wheat has been planted, three or more hoppers per square yard within the field can destroy seedling wheat. Seed treatments can help protect emerging wheat plants for several weeks.

Please refer to the most recent Wheat Insect Management Guide for control options. 

Page last updated 10/30/2013 by J.P. Michaud.