David Owens, Extension Entomologist, owensd@udel.edu Small Grain Small grain planting is right around the corner. Barley is the most susceptible to barley yellow dwarf virus spread by aphids. Fall infestations are the most damaging and likely to spread the virus.… 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 Sweet Corn Continue scouting whorl stage sweet corn for fall armyworm and tassel push sweet corn for corn leaf aphid. Either of these may require additional insecticide applications. Corn earworm populations are VERY HIGH across… Continue Reading
David Owens, Extension Entomologist; owensd@udel.edu Soybeans Continue scouting for stink bugs. We sampled more fields this week in Kent County and still have not found an economic infestation of them, so I suspect their populations are lower this year. Podworm… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Soybean Continue scouting for podworm and stink bug in double crop beans. Stink bug thresholds increase to 7 once we move into R6.5, and up to 10 bugs/15 sweeps past R7. Podworms may still be… Continue Reading
