On-Farm Corn and Soybean Variety Demonstration Trials
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Farmers are faced with corn and soybean variety selection decisions each year as new varieties are introduced, including transgenic corn hybrids with several traits for insect and herbicide resistance. Recently, soybean varieties have been introduced with tolerance to the soybean aphid. As problems with corn rootworm resistance to Bt corn continue to be found in Iowa, it is important to research methods to manage this pest. The objective of these trials was to compare corn and soybean varieties on yield and/or insect tolerance.