Soybean Yield Response to Late Soybean Aphid Treatment

Date
2004-01-01
Authors
DeJong, Joel
Haden, David
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Abstract

Soybean aphids have emerged as a major pest in soybean production in the last four years. This pest was first widely observed in Northwest Iowa in 2002, and in 2003 this pest caused widespread yield loss. In Northwest Iowa the pest reached peak populations later than many models indicated would be likely. Research is needed to better understand what impact late season insecticide applications have on soybean yields when aphid populations are high.

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