David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Moth counts are variable in pheromone but pay attention to blacklight trap captures. Our thresholds for blacklight traps can be found here: https://www.udel.edu/academics/colleges/canr/cooperative-extension/sustainable-production/pest-management/insect-trapping/silk-stage-sweet-corn/. Blacklight traps with counts of 2 or greater on Thursday… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Continue scouting for cucumber beetle, especially in recently planted fields with small plants where defoliation can cause more significant injury. Also scout for melon aphids on any fields that have not been previously treated… Continue Reading
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
