Luckily, the summersweet doesn't bloom that long. The summersweet will attract wasp. Wasp eat caterpillars, but in my yard the wasp find the caterpillars anyway. I usually bring in the caterpillars to raise since there are way too many wasp in my yard. The yellow jackets (wasp) are out in full force now.
Herndon, VA (USA)
Take care of the small things....