David Owens, Extension Entomologist, owensd@udel.edu Sorghum For the first time in several years, we have significant sorghum aphid populations at the research station. Thresholds in southern states are 30% infested plants with a dime sized or greater colony of aphids… 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
David Owens, Extension Entomologist, owensd@udel.edu Soybean Continue scouting R3-R5 soybean for stink bug. Thresholds are 5 bugs in 15 sweeps for conventional beans, 2-2.5 bugs for seed production, and somewhere in between is where Plenish soybeans should be at. Defoliation… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Soybeans We started surveying full season soybean for stink bug this week. Defoliator populations appear to be low. The greatest populations of stink bugs we found were in the Greenwood area. Pay attention to field… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Soybean Japanese beetle and Asiatic Garden beetle are active, as are the remaining usual defoliators. Dectes stem borer is beginning to emerge out of the soil; emergence typically peaks around mid-July. I have seen it… Continue Reading
