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 Sorghum Any sorghum that was shedding pollen in the last 7-10 days or is currently shedding pollen should be scouted for corn earworm. Beat 50 heads into a bucket and count the number of small,… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to sample fields on a weekly basis for defoliators including earworm, webworms and all armyworm species. Economic levels of defoliators continue to be found causing damage. Soybeans As of this date, economic… Continue Reading
