Make an essential oil bomb of peppermint oil and eucalyptus oil, wasps hate the smell of both and both mixed will Fukem off in a safe manner.
I'd suggest you use a couple of garden night torches but fill the tanks with the mix of essential oils and the fuel, you're gonna need to test the mix a few times to get the highest pungency with a good burn. Then deploy them, keep refilling the tanks all the time and you'll find they move on.
I use this mix in the attic by way of an oil burner, after a week they've gone.
Please don't kill them as we need all the pollinators we can get.