Fire is best destroyer .
I don't know what chemical is in wasp killer if that is what you are asking. I know that diatomaceous earth works well on nests that are in the ground. The wasps cannot get through it without...
A wasp nest is the habitat of a wasp.
it depends on how big the nest is but i would say there is about 500- 5000
Spray it with some insect killer they go away.