I caught a swarm sometime in April that I'm almost certain didn't come from my yard. Two weeks ago when I inspected them, they were acting very testy. I had some family in the bee yard with me, and I had to ask them to leave because the hive was getting too unruly for my comfort with inexperienced beekeepers there. I had planned to requeen them today, but when I opened them up they were like a national defense force. I couldn't even begin to inspect them, much less find a queen. I was stung 5 times and chased out of the apiary halfway through the first box. It was all I could do to replace the frames correctly and close them back up. They were very reactive to my breathing; every time I exhaled my face was assaulted by about 150-200 bees. I left all my gear up there, and I'll have to wait until it gets dark to get it because there were mean bees everywhere. This hive is 4 8-frame mediums tall, and I did have the wherewithal to put my snelgrove board between boxes 2 and 3 to sort of halve them to help me manage them next time.
I've never had a hive act like this during a flow in early summer when everyone else is happy and working contently; they were completely unmanageable. I'm not sure what I should do. I'm not sure I can work them well enough to wait the 6 weeks it'll take to rotate the worker bees out, even if I could requeen them, since our summer flow is on and they will need supers. I'm not keen on euthanizing them either, but I certainly don't want them to get worse when we hit the dearth at the end of the month. What are my options?