GASOLINE!
Soak the yard and light.
I found a trap at Lowes that I hung in the dogwood tree above where the nest was that I stumbled upon. It's called a WHY trap, part of the rescue line. It includes an attractant and a food source. Once they clim in, they cannot get out.
It works with everything except honey bees.
So far a few yellow jackets and a blask wasp/hornet has found their way in and died.