Then there is the fipronil approach to yellow jackets. https://www.ifish.net/board/showthread.php?t=1566159&highlight=yellow+jackets

The yellow jackets around our place can get so bad that it's tough to work in the garden. Every fall I'm surprised by how many nests are dug up by the skunks and bears in the meadow to the east and south of us. I have to put up with them in the woods, but have used the approach outlined in the link with good success around the house. Nothing like using a noisy chain saw and disturbing a yellow jacket or bald face hornet nest. Your first clue that you are in trouble is the first wham, especially when you look down and see your lower pants covered with them.

This spring I also used the approach T O M used to limit the number of queens building nests. It really seemed to help.