Northwest and Allee Research and Demonstration Farms

On-Farm Corn and Soybean Disease and Insect Management Demonstration Trials

Authors: Mike Witt (Iowa State University) , Andrew Weaver (Iowa State University) , Chad Hesseltine (Iowa State University) , Brandon Zwiefel (Iowa State University)

Abstract

Farmers are faced with many decisions for pest management options as new technologies are introduced. Pests, such as corn rootworm and nematodes, are persistent and economically important pests in Iowa. Rotating corn with soybean usually reduces corn rootworm pressure, although rotationresistant populations can occur in limited areas of Iowa. New insects, such as the soybean gall midge, also are proving difficult to manage. Diseases supressed with seed treatments and foliar applications continues to be important to Iowa farmers. As resistance issues arise with insects and diseases in Iowa, it is important to investigate alternative methods of suppression. The objective of these trials was to investigate what effect various corn and soybean management practices would have on yield.

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How to Cite: Witt, M. , Weaver, A. , Hesseltine, C. & Zwiefel, B. (2021) “On-Farm Corn and Soybean Disease and Insect Management Demonstration Trials”, Iowa State University Research and Demonstration Farms Progress Reports.(9).