David Owens, Extension Entomologist, owensd@udel.edu
Beans
Potato leaf hoppers are active in vegetables. Scout snap beans for nymphs and adults, by looking under leaves for the small, lime green, sideways-moving insects or by taking sweep net samples. Delaware thresholds are 5 per sweep; other states use a lower threshold closer to 1 adult per sweep.
Watermelon
Striped cucumber beetles are still very active. Be on the lookout for them in recent transplants. Fields that have been recently treated with a neonicotinoid should still be giving control. Look for dead beetles on the leaves and beetles that are not moving or only slightly moving when prodded.