Northeast Research and Demonstration Farm
Beginning in July 2005 the Soybean Entomology Laboratory established four suction traps within Iowa. These suction traps have helped entomologists and growers understand the year to year variability in soybean aphid populations.
Iowa State University
O'Neal, Matthew E., "Soybean Aphid Aphis glycines Matsumura (Homoptera: Aphididae) Suction Trap Monitoring Network in Iowa" (2006). Iowa State Research Farm Progress Reports. 1090.