More often than not, these are yellow jackets. Short of flooding the nest with pesticide, a dangerous and not altogether effective way, there is little you can do. If you have a wet/dry vacuum, you...
Sounds more like mud-daubers, a kind of wasp . Pour gasoline down the hole after it cools down at night , when they are lethargic. Throw dirt into the hole and cover with a rock, preferably a large...
Simply get a strainer about 2 inches bigger than the hive and spray bug spray for bees at it.(raid).Remember to wash the strainer well with soap if you are going to use it again.
If you don't want to kill the bees, just persuade them to go elsewhere, there are products that beekeepers use to clear bees from the honey frames before taking them. They are harmless to the bee...