The best bait we have found to put in the bee trap is bacon. I know everyone loves bacon, so do the carniverous bees.
You can use a trap as described previously or a bit bigger one, be sure to fill it fairly full with water dish soap mix, hang a nice juicy strip of bacon inside. The little buggers are so greedy thay will cut off more than they can fly with and fall into the water, end of story. I have used as big a a 5 gallon pail for that.
Ground bees get a dose of saw gas, diesel and a match, be sure its safe to light fire, been to more than one wildfire from "smoking out bees". Just did this last week after disturbing a, fortunately small, ground nest of jackets. They stung my wife, cat and me, death to the flying bastads!!
I also will use the hose to wet 'em down if the nest is hanging high on the house or something, you just have to hit 'em fast and soak it well.
Years ago at a remote fire station I saw the guys throwing clods at this large pine tree. Upon closer inspection there was a very large hornet nest plastered to the side of the tree. Told them someone is gonna get stung, well they kept up, later I see the capt with a ice cube to the forehead.
I ask, "get stung?" he says "no, bumped my head". Next morning he shows up earlier that usuall, no biggie, then we hear BAHWOOM!!!! Go running out to see him walking back to put the double barrel back in his truck. End of hornets. A bit extreme but effective . . .
Attack those critters with the vengance they would give you!

Rich