Is it like the huge bee hive on Mysterious Island?
http://www.youtube.com/watch?v=meO2VzcMEgI&feature=related
So much for colony collapse - wow!
I made a bee-vacuum out of a shopvac and a couple of 5 gallon buckets once. If one could use something along those lines to capture the queen without hurting her, along with many worker bees, then harvest as much comb as one could, using dental floss or thin wire to attach it to frames...one could remove the potential problem by containing it, removing, but still keeping it.
Waiting for full onset winter might be enough? If one was wishing to be rid of them. They might die of exposure, if it got cold enough. It would depend on how much cold that part of the country got, I'm guessing.
I hate to see pesticides used on honeybees, if they are not acting like yellowjackets. If they were much africanized, would it have been plain enough by now? But if they ARE africaized, then they may leave (abscond) on their own.
When I lived in Newport News Virginia years ago, one fall after the leaves had dropped, the nextdoor neighbor noticed he had a paper wasp nest in a tree that was the size of a good sized watermelon. I helped him out, and we put a kerosine soaked rag on the end of a long pole, and set that puppy on fire. There were quite a few wasps buzzing around, but that big old nest burned pretty bright for a while....