Spraying for soybean aphids

Spraying for soybean aphids

Brian Lang, ISU Extension crop specialist, examines the differences in soybean plant height in late July 2001. The rows on the right were sprayed for soybean aphids and the rows on the left were unsprayed. Leaving an unsprayed test strip will determine the real value and performance of the insecticide treatment. (Marlin E. Rice)

Updated 07/08/2005 - 3:04pm