Funny this should come up now!. We have TONS of those under the eaves, etc, but they really aren't too bad.. I think the real yellow jacket is a ground nester, and heaven forbid you stumble on one of them nests... kinda like I did yesterday. I was clearing some brush making a trail when I got stung on the back of my hand, I knew right away what was up and grew some good legs real fast, when I was about 80 feet away i stopped and apparently one had gotten under my shirt and got me on the stomach.. I was some kinda mad, my had swelled up real good, can still really see it today, and it ITCHES ITCHES ITCHES!!!!.. the one on my stomach isn't as bad, though there is a welt there.
I had seen another nest way off in the bush (out of the way) before I stumbled on it, but I was on the warpath today and put on my bee suit (at 100F) and stomped them out.. first I sprayed the opening with foamy Raid, and then took a crowbar and poked through the ground for about 5 minutes.. perhaps a few wasps will survive that, but it's really unlikely anything in the nest is salvageable.. I did that to both nests.
We have tons of other kinds of spider wasps, etc, and those I really don't mind.. they don't bother you at your dinner table or pester you, so I let them be.. We have some that are about 1 1/4" long and LOVE being on the onion and mint flowers, never been stung by one, and sure hope I never am.. Then there's also the black hornets around here, they nest in rosebushes, etc, mostly black with some white stripes.. I won't have them nest near me, but I don't mind them too much either.. if you shoo them off they get the message.