Heri I live in an area where wasp nests are a big problem. The best sootiuln is to buy wasp killer its pretty cheap, about $ 3-4 a can.. depending on where the wasp nest is located, you can buy a spray bottle or a projector spray that reaches about 20ft. When the sun goes down and all the wasps return to the nest, spray like hell! In the morning if you still see wasps flying around, wait until night and spray again. Keep this up until you don't see anymore wasps, then give it a day or two more with more spraying to make sure the larvae were also killed. Once they're dead, you can knock it down with a hose that has a pistol attachment, or whatever does the job =pIf you don't want to kill the nest, then I suggest you do what the local residents around here do. Get a pair of easy to use pruning clippers, or something that wont give you a hassle to use quickly. Put on some long sleeved clothing and a sun hat with netting on it (you can buy netting at a fabric store for as cheap as 70 cents a yard, whatever you need to cover your face..like a beekeepers hat), wait until dark when all the wasps have returned to the hive. Put a tub (plastic locking tub is best, or whatever has mesh fine enough so they wasps wont fly through)under the nest and clip the top. When the nest falls in shut it quickly.Wasps release pheromones when threatened, and it starts a chain reaction, so if one gets out and attacks you, I suggest you wait until the next night.