Some areas had 10 inches of rain in two weeks so herbicide application was too late in some soybean fields, resulting in 18-inch velvetleaf and giant ragweed. Some possible Exceed carryover in soybean were reported, especially in the eastern third of the state. Potato leafhopper numbers are above threshold in many fields and are being sprayed. See pages 135-136 in this newsletter for scouting details and insecticides labeled for control. Second-crop alfalfa harvest is beginning in most areas.
Wheat is about ready for harvest in southeast Iowa.
Prepared by Joyce Hornstein , extension program specialist, Department of Entomology Iowa State University , Ames, Iowa. This information subject to a usage policy . This information subject to a usage policy .