Soybean aphid population trends in NE Iowa, 2003

Soybean aphid population trends in NE Iowa, 2003
This figure illustrates the soybean aphid migration pattern with data from 2003. The soybean field at the Decorah location was planted on May 14; soybean fields closer to Ossian and Calmar were planted on May 29. While these patterns in aphid migration are quite evident, they unfortunately do not help us predict infestation levels.
Updated 01/26/2006 - 1:45pm