/diy/ - Do It Yourself

OP, wasps would not retreat in fear. They are one of the nastiest sons of bitches produced by Nature. They'll defend their nest to death, and wouldn't be trickered to see "What's that sound". They'll probably chase after you. If just one stings you it would release a powerful chemical signal that would mark you as "Ennemy of the nest. Terminate with extreme prejudice" and you would have a full nest of motherfuckers after your skin. Spraying them for the last years have turned up their inmune system so now they are kinda like ubber-wasps on steroids. My advice for your safety: contact a proffesional. Not a cheap clumsy one. Someone with a good reputation. Tell him what product did you use with the nest and let him take care of your honert commandos. Don't let any troll or your pride in the way. Those fuckers are dangerous.
Burning the nest would work only if you trap all the hornets, but probably would ignite your backyard/grass/fence/neighbour's house, so don't try it.
Go to youtube and watch some vids about these nasties if you are not convinced.
Stay safe, OP. Revenge against insects is not enough to expose yourself to a deadly danger.