Yellow Jackets are little buzzing, stinging insects. We had a couple of nests several years ago in the back yard, and I set traps or them. WHY traps, just like these at Amazon. This stuff murders t hem. In a short while, my yellow jacket problem was solved. It's a pheromone trap that lures them in, then drowns them. Works great.
This morning, mowing the front yard, I got wrapped up in yellow jackets. They hit me twice, once on the shoulder, once in the middle of my back. the one in my back feels like he hit me with an ice-pick. I was considerable pissed.
After mowing, I had to run to Lowe's, so I picked up another of those WHY traps. I'm getting ready to show them a little trick, and they ain't gonna like it.