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Management of Insecticide-resistant Soybean Aphids
Mon - October 1, 2018
by Robert Koch, University of Minnesota; Erin Hodgson, Iowa State University; Janet Knodel, North Dakota State University; and Adam Varenhorst, South Dakota State University

In response to the challenge that insecticide-resistant soybean aphids pose, we encourage growers, consultants, and applicators to evaluate their soybean aphid management practices carefully. 

A new Extension publication, Management of Insecticide-resistant Soybean Aphids, from Minnesota, Iowa, North Dakota, and South Dakota Extension Service, reviews best soybean aphid management practices with regard to insecticide use, as well as the factors that likely led to the development of insecticide resistance in soybean aphids -- frequent infestations, limited number of insecticide groups, and misuse of insecticides.

The publication lists foliar insecticides and active ingredients currently labeled for soybean aphid management. This short list of insecticide groups is under threat of becoming even shorter through continued development of pest resistance to insecticides and potential regulatory actions. We believe the agricultural community would be wise to work together to preserve the effectiveness of and continued access to these important tools for protection of crops from insect pests.

Published and printed with checkoff support from the Minnesota Soybean Research and Promotion Council, Iowa Soybean Association, North Dakota Soybean Council, South Dakota Soybean Research and Promotion Council, and the North Central Soybean Research Program.

Read Management of Insecticide-resistant Soybean Aphids

More Resources on soybean aphid management
Soybean Aphid Field Guide, 2nd edition - NCSRP, 2018. Available through the Iowa State University Extension Store
Biology and Economics of Recommendations for Insecticide-Based Management of Soybean Aphid - Plant Health Progress, 2016
The Effectiveness of Neonicotinoid Seed Treatments in Soybean - Purdue University, 2016
Scouting for Soybean Aphid- University of Minnesota, 2015
A Visual Guide to Counting Soybean Aphid - North Central Soybean Research Program, 2014
Biology of the Soybean Aphid - Integrated Pest Management, 2011