David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Striped cucumber beetles and Lepidopteran rindworms continue to be the primary threat. Assail is the best striped cucumber beetle material, but if you are seeing caterpillars feeding on blossoms, you may want to include… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Pheromone trap counts are going down quickly, and this might indicate a field could be on a 4-day spray schedule. However, blacklight traps still seem to be catching a large number of moths… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn The earworm flight remains pretty strong. This has given us the ability to begin testing large numbers of corn earworm moths for pyrethroid resistance using a 5ug cypermethrin dose in an adult vial… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Cucumber beetles continue to be very active. Thresholds are 2 beetles per plant. As a general reminder, we have not seen good efficacy from pyrethroids from our MD/DE beetle populations. On summer squash, begin… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Soybeans Corn earworm should have largely moved out of soybeans by now. You may still see some stragglers, particularly in late beans. Any double crop beans that have not been treated and are particularly late… Continue Reading
