We planted pumpkins in a new section (no garden there for abt 15 years), at least 200ft from where we planted pumpkins last year (which were hit by squash bugs). I'm starting to find them again. I killed several adults and destroyed eggs the day before yesterday. Today I checked again and found 6 more adults and about 25 egg clusters. This is on about 20 pumpkin plants that have 8-10 leaves each. Last year we tried spraying soapy water, but that burned the leaves. I need to find something other than manually destroying these things, especially considering that its getting hotter (heat index 100+ today) and the amount of leaves to check are increasing.
Does DE kill them? Do the young leave the plant long enough to contact the DE? Any other suggestions?