I hate frigin Wasps!

If you get stung....immediately as possible put honey on the bite.....takes the sting out of it.
I use a squirty bottle with a mix of Inox, and petrol....a piece of wire holding a tightly wrapped rag soaked in the mix, and the rag is about 8" from the nozzle, and about 1 to 2" below the stream. Light the rag, and away ya go with a hell fire....like a flame thrower....the heat is really intense, so it burns their wings & leags off.
You can adjust the nozzle so as to make fire-balls or fire-stream.
I use it on green ants nests too.