David Owens, Extension Entomologist, owensd@udel.edu Continue to scout small grains for aphids. In the last couple of weeks, we have looked at over a dozen small grain fields, mostly barley, and have seen only very low numbers of aphids. Thresholds vary depending… Continue Reading
David Owens, Extension Entomologist; owensd@udel.edu Sweet Corn Trap captures are mostly steady this week compared to last week. Most sites should stay on a 3-day spray schedule. If temperatures exceed 82, tighten up spray intervals one day. Trap captures from… Continue Reading
David Owens, Extension Entomologist; owensd@udel.edu Soybeans Soybean aphids continue to be active in the area, although populations appear to be declining in general. The threshold the Midwest uses for them is 250 aphids per plant prior to R5, and to… Continue Reading
David Owens, Extension Entomologist; owensd@udel.edu Pumpkins Continue scouting for aphids, squash bugs, and cucumber beetles in pumpkins that could scar rinds. Aphid populations across Delmarva have been very high for several species. Melon aphids can transmit viruses to pumpkins and… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Trap captures continue to be unusually low, save one location. This year we have corn leaf aphids in high numbers on emerging tassels at a sweet corn plot in Salisbury. Aphids are making… Continue Reading
