The publication also contains Iowa State University recommendations for considering soybean aphid-resistant varieties. For more information on soybean aphid management consult: Soybean Aphid Management Field Guide 2nd edition. Additional information about insecticides is found in the most recent soybean aphid insecticide efficacy evaluation.
Host plant resistance for soybean aphid can dramatically decrease aphid growth over the summer, and often prevent the economic threshold from being reached. Ultimately, this new tool will help reduce production costs by reducing the number of foliar insecticides being applied to soybean.
Small plot research shows the benefit of host plant resistance. Note susceptible plants (right) are covered with sooty mold that developed on aphid honeydew.