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Corn Rootworm Damage

Lodged corn from rootworm larvae

Corn rootworm larval injury

Corn roots with Yieldgard®

Lodged corn from northern corn rootworm

Root lodging of corn

Corn roots from YieldGard Rootworm


Iowa State University


Entomology Image Gallery > Plant Diseases and Damage > Corn > Corn Rootworm Damage

Corn roots with Yieldgard®

Unprotected corn roots (left) showing a Node-Injury-Scale rating of 3.0 and protected roots (right) from a YieldGard® Rootworm hybrid.

Corn roots with Yieldgard®

This image appears in the following article:

Two-year summary of corn rootworm insecticides and YieldGard® Rootworm (November 2004)

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Iowa State University Entomology Department. Last modified 11/19/04 by John VanDyk.