Veronica Yurchak, Vegetable Specialist, UMD; vjohnso4@umd.edu A diverse assemblage of caterpillar pests can be found damaging vegetables by the later portion of the growing season. Many of these species have developed local or widespread insecticide resistance. Proper caterpillar identification can… Continue Reading
Vegetable Crop Insect Scouting David Owens, Extension Entomologist; owensd@udel.edu Sweet Corn Corn Earworm activity continues to slowly decline, but numbers remain elevated in several of our blacklight traps. They probably will maintain high enough populations to justify a 3 day… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Striped cucumber beetles continue to roll into fields. We are beginning another pyrethroid resistance monitoring effort this year and need beetles from all over Delmarva. If you have a location in which the entomology… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Trap counts are declining with cool weather. With temperatures below 82, it takes CEW eggs 3 days to hatch, thus allowing us to be on a 3-day spray schedule regardless of what material… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Continue scouting for aphids and for squash bug in pumpkins. Aphid populations typically peak this time of year and heavy populations can spread viruses and cause sooty mold to develop on fruits. Squash bug… Continue Reading
