David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Scout for striped cucumber beetle on any planted cucurbit – cantaloupe, cucumber, watermelon, and summer squash. They have been spotted in watermelon planted last week and in high tunnel cucumbers. Of those, watermelon is… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Melons Begin scouting for striped cucumber beetle on early planted fields. With the unusually warm weather lately, they should be out and flying. Thresholds for striped cucumber beetles range from 2-5 per plant. If running… Continue Reading
Cole Crops Continue scouting young broccoli, cabbage, and napa cabbage for worms and for flea beetles. The threshold for young plants is a 20% infestation. When plants are young and when caterpillars are young, Bt. should provide excellent control. Flea… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Moth counts are increasing. Most recent vial tests indicate a 32% survival rate following a pyrethroid challenge. The good news is that this is slightly lower than some years. In August we have tested 168… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Spinach and Beets Beet webworm activity is unusually high this year. In Georgetown, they have stripped a lot of foliage off pigweeds. In addition, beet armyworm activity is also getting into oddball places, just like… Continue Reading
