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Extension Number

290-12

Description

Corn rootworm is a major pest of corn in the United States. In the last decade, Iowa farmers have seen many changes for managing corn rootworm. With the commercial release of transgenic Bt-rootworm corn in 2003, many farmers reduced or eliminated soil-applied insecticides to manage larvae. Western corn rootworm is adapting to transgenic technologies throughout the Corn Belt. Some continuous cornfields have larvae that can now survive at high numbers and cause severe root injury to Bt corn. We encourage farmers to use multiple strategies to protect corn.

Publication Date:

11-2012

Publisher:

Iowa State University Extension and Outreach

City:

Ames, IA

Keywords:

Crops, Corn

Disciplines:

Agricultural Education | Agricultural Science | Agriculture | Agronomy and Crop Sciences | Entomology

Disclaimer

Iowa State University Extension and Outreach publications in Digital Repository @ Iowa State University are made available for historical purposes only. The information contained in these publications may be out of date. For current publications and information from Iowa State University Extension and Outreach, please visit http://www.extension.iastate.edu.

Current challenges in managing corn rootworm

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