Abstract
Soybean aphid, Aphis Glycines Matsumura (Hemiptera: Aphididae), is a pest to soybeans in Iowa. In certain years, it can be economically devastating to a farming operation. Conventional farmers can use insecticides to control soybean aphid populations but those insecticides can also harm natural enemies that feed on soybean aphids. In addition, organic farmers do not have good pest deterrent alternatives to insecticides to control aphids. Data from five farmers in Iowa who tested aphid resistant (AR) and susceptible (SC) soybean varieties suggests that even in a year with low aphid populations, like 2010, aphid resistant soybeans can yield similarly or within 6 bu/A to commercially available susceptible varieties.