David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Continue scouting whorl stage sweet corn for Fall Armyworm. New Jersey reports central Jersey fields above threshold and that pyrethroid efficacy is low. That leaves Avaunt, spinosyns, and chlorantraniliprole as our best armyworm… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Scout whorl stage sweet corn NOW for fall armyworm infestation. Multiple reports of fall armyworm came in this week from small worms just hatching and only causing window-paning to larger worms working in… Continue Reading
Sweet Corn The earliest sweet corn will soon be silking. As a general reminder, thresholds for silking sweet corn can be found on the Insect Trapping webpage: https://www.udel.edu/academics/colleges/canr/cooperative-extension/sustainable-production/pest-management/insect-trapping/. The last time I looked, the links for action thresholds for snap… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Striped cucumber beetles (Acalymma vittatum) (SCB) are the most important insect pests of muskmelon and cucumbers in our area. They overwinter as adults and emerge when temperatures reach 54–62°F at which… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Striped cucumber beetles (Acalymma vittatum) (SCB) are the most important insect pests of muskmelon and cucumbers in our area. They overwinter as adults and emerge when temperatures reach 54–62°F at which… Continue Reading
