Talking about baits, If You have found something that works really well like You said, cantaloupe or figs, buy You some seven dust. get some of those plastic surgeons gloves. now take Your fruit or whatever You have found that works ( it is the sugar in the fruit they are after) and chop up to a mash. mix in a fair amount of seven with the gloves on and take it out on the plate and put it where You have been baiting them already. They will take the poisoned fruit back to the nest and the queen will eat it and die. They also clean each other and many will die from that process. the rest will leave. If You live in an area where Your County sprays for mosquitoes, and can find out who the truck driver is, buy him a six pack and ask him to hit Your yard on the next outing. I am good friends with our county Mosquito killer and he will do that for me upon request. I tell him to back up to the woods and turn the trees white. That pyrethroid they spray will kill the jackets too.CF