David Owens, Extension Entomologist, owensd@udel.edu We visited a field this week that had signs of heavy webworm feeding. Weak tillers were bored into by small webworm, along with a handful of billbug larvae. In turf grasses, these insects can be… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Continue scouting for spotted lanternfly adults in vineyards. Large numbers can damage vines and even kill vines. Fortunately, they are susceptible to broad spectrum insecticides such as pyrethroids, carbamates, and neonicotinoids.
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 Sweet Corn Traps were checked on Tuesday of this week and thus represent 5 days in the below table. Traps are being checked today (Sept 5) and counts will be accessible by 5PM (if all… Continue Reading
Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu In recent years, Alternaria leaf spot and head rot has been damaging to fall cole crops, especially broccoli, in Delaware. Broccoli is the crop most susceptible to Alternaria disease, followed by collards.… Continue Reading
