Rootworm insecticides evaluated

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2002-12-23
Authors
Rice, Marlin
Oleson, James
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Integrated Crop Management News
Extension and Experiment Station Publications
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Abstract

Two integrated pest management strategies are commonly used to protect corn roots from corn rootworm injury: crop rotation and insecticides. If corn is not rotated, or if extended diapause northern corn rootworms occur in a field, a soil insecticide might be necessary to protect the roots in 2003. The reason we say it might be necessary is because many fields do not have a rootworm population of a sufficient size to cause economic damage. There are thousands of continuous cornfields across Iowa in which a rootworm insecticide is not used and is not necessary.

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Tue Jan 01 00:00:00 UTC 2002
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