David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn Corn earworm trap counts are high. During the first 10 days of silking with temperatures above 82 degrees, a 2 day spray schedule following a pyrethroid and a 3 day spray schedule following… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Greenhouses Begin scouting greenhouses for aphids and spider mites on early season transplants. Aphids can easily establish on transplants and build up moderate sized colonies in hotspots. These hotspots can be identified by increased ant… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Striped cucumber beetle aggregations have been observed this week in cantaloupe and squash. Begin scouting all watermelon transplants! This includes plants on the transplant wagons, recently transplanted, and any cucurbit in the ground besides… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Cole Crops Thresholds for cole crops early are 20% infested plants, rising to 30% infested plants during the midseason, and then falling again below 5% infested plants when the plants begin forming the harvested structures.… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Sweet Corn This will be the last sweet corn trapping post of the 2021 season. Many thanks to Richard Monaco for faithfully checking all of our traps Mondays and Thursdays, rain or shine, holiday or… Continue Reading
