They also are spraying for potato leafhoppers, which continue to be a problem, and grasshoppers. He reported a very low incidence of corn or soybean disease at this time. He observed some yellowing of upper trifoliolates on Roundup-Ready soybean plants 2 to 3 weeks after treatment. Potato leafhoppers are still present in high numbers in alfalfa, and spider mites are beginning to move into end-rows of a few soybean fields. He also found some stem canker of soybean.
Pastures are very dry and short.
This service is funded through ISU Extension's Integrated Pest Management program. 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 .