In regards to re-queening a mean hive. You need to bring in a queen with different genetics or eggs with different genetics right? Letting the hive raise a new queen from her genetics won't make a difference, or can a new queen raised from the mean queen's genetics still be nice?
Occam, genetic meanness normally comes from the drones, so yes, a queen from the same hive can be very gentle, if she mates with drones from a gentle queen.
Since this queen wasn't from my yard, I was planning originally on letting them raise a new queen from their queen's eggs, on the grounds that my drones may be different. But for the same reason, the fact that I don't know where she came from, I'm now just going to requeen with my genetics, just to be safe.
So I was back in the bee yard today finishing up some things that I didn't get around to yesterday for obvious reasons. The bees from this mean hive were following me everywhere in the yard. They would not leave me alone! I had about 20-30 bees from this hive in my face the entire time I was anywhere in the apiary, even when I was all the way down at the end of my line of hives with like 15 ft. between the last hive and theirs. Even when I entered the apiary from that side, in order to not have to pass by them, they still found me. It made it quite difficult to work the hives I needed to work.
I'm not okay with not being able to enter my apiary because of this one hive. I'm still going to try splitting them up and seeing what happens, but if I want or need to euthanize them, how would I go about that? I just want to be prepared with all my options.