Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to scout fields on a weekly basis for leafhoppers. It is also time to start watching for defoliators in alfalfa, including grasshoppers, corn earworm, webworms and beet armyworm. Soybeans In full season … Continue reading Agronomic Crop Insects – July 13, 2012