“you put a piece of wood over the top of the bin and hang chunks of raw chicken from below. The wasps take a chunk of the meat, and then fall in the soapy water”
Then you go outside to check the trap, and as you’re standing there saying, “Wow, look at all the wasps!”, the bear who showed up for free snacks rips your face off. No thanks!
For wasps underground I have seen videos of people putting chicken wire over the opening, pouring gasoline down the hole and starting it on fire.