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Northern Illinois Agriculture

University of Illinois Extension
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The seed is here!

Posted by Russel Higgins - Corn

As with any farming operation, the excitement starts to build when the seed for the upcoming growing season arrives. Recent field activities at the NIARC included chopping corn stalks for the crop residue study and harvesting Miscanthus for our grass bio-fuel project.

Last week Dr. Mike Gray, University of Illinois entomologist, shared that two additional northern Illinois counties haveĀ  Western corn rootworm populations resistant to the Cry3Bb1 protein. Henry and Whiteside now join McDonough, Mercer, and Sangamon Counties, totaling five Illinois counties where field resistance has been confirmed. In his article Dr Gray urged producers to implement a long-term integrated pest management program for corn rootworms. This includes the use of multiple tactics (over time, not all in the same season), such as: use of a more diverse crop rotation system, use of a non-Bt hybrid in conjunction with a planting-time soil insecticide, rotation of pyramided Bt hybrids, and consideration of an adult suppression program in heavily infested fields.

Dr. Grays article from the Illinois Bulletin can be accessed in its entirety here.

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