I was asked to remove a wasp nest last Saturday while a BBQ was taking place in the backyard. I set-up the wasp trap, poured in the wasp bait and hung it on a fence post in the back of the yard as instructed. I immediately started to see wasps drawn in the bag. I sprayed the nest and as the wasps fled most if not all of them headed toward the bag. I returned on Monday to find the bag swarming with wasps. I just closed the top and tossed it in the trash.