Northwest and Allee Research and Demonstration Farm
In 2005, the soybean aphid reached economic populations in many Iowa counties. A frequent question from growers has been, “What product offer the highest level of control of soybean aphids under Iowa conditions?” To help answer this question we established a replicated field experiment at the Northwest Research Farm located in O’Brien County, Iowa.
Iowa State University
Johnson, Kevin D. and O'Neal, Matthew E., "Soybean Aphid Aphis glycines Matsumura (Homoptera: Aphididae) Insecticide Performance in O’Brien County, Iowa" (2006). Iowa State Research Farm Progress Reports. 1134.