Soybean aphid infestations are developing: Recommendations for scouting and managing insecticide resistance
Robert Koch (Extension Entomologist), Bruce Potter (Extension IPM Specialist), Phil Glogoza (Regional Extension Educator)
Scouting for soybean aphids in Minnesota soybean fields should be underway. While aphid populations are low in most fields, we have received reports of increasing soybean aphid numbers. In parts of central Minnesota, some of these fields are nearing threshold levels and will likely require insecticide treatment soon to protect yield. Early-planted soybean in areas with moderate rainfall this year might see significant aphid populations first. However, aphids are now spreading to other fields putting them at risk too. Below, we provide an overview of scouting recommendations and updates on insecticide resistant soybean aphids.
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