Sweet and Cruel - Wasps are a plague on our backyard and every year we do our best to kill them. This wasp catcher has been in our possession for years but we never found it effective. It took a few days for one dumb wasp to go in there and then there were seven by May 31 and doubled that by June 1. I feel a bit of guilt seeing the live ones suffer and trying to find a way out but that feeling is temporary.