I know this might sound strange, but I'm looking for a safe way to kill a hive of bees, unless there is a better alternative I'm not aware of. Here's the situation; a friend has a corn grinder that a swarm of bees set up home in. He needs to grind corn to feed his cattle, so he doesn't want to use Raid or other pesticides. Is there something that produces a smoke that would get rid of them. I would try to move them but with the freezing temps right now, I don't see how they could possibly survive a transfer right now. Any help or ideas would be appreciated.