Integrated Crop Management News

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During the 2005 growing season, the soybean entomology laboratory at Iowa State University evaluated several insecticides for efficacy against soybean aphids. Since the arrival of the soybean aphid to North America in 2000, the number of insecticides labeled for use against this pest has increased and continued to increase in 2005. Managing soybean aphids effectively requires consideration of the immediate ability of the product to kill aphids and then the length of residual activity. Residual activity is especially critical for products like seed treatments that must have an ability to kill aphids several months after planting.

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Iowa State University



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