Investigators: Dr. Adam J. Varenhorst, Dr. Matthew E. O'Neal, Dr. Michael T. McCarville Read more about Determining the impact of induced susceptibility on avirulent soybean aphid populations on resistant soybean
Winged aphids are still on the move in Iowa, although most fields still remain well below treatment levels. Neighboring states have notable aphids, so scouting should still continue.
Erin Hodgson talks about recent aphid populations and also some interesting defoliators in soybean.
Drs. Matt O'Neal and Erin Hodgson discuss current soybean aphid activity around Iowa and the region. Numbers are remaining low with some regions declining in density. They also discuss upcoming field tours (available at www.aep.iastate.edu).
Drs. O'Neal and Hodgson summarize reports from around the midwest and Iowa about the soybean aphid. Despite the lack of aphids in the fall, evidence so far is that they survived and are beginning to build up in the northern parts of Iowa. Numbers are still very low and do not require insecticides, but we compare 2011 to previous growing season.