Re: At what temperature is it too cold to make a split
Make sure you find that old queen first. I found queen cells in one of my hives and out of a knee jerk reaction I removed them. Knowing it would not help even. After closing up the hive I started thinking of every other reason this hive might have queen cells regardless of how obvious it was that these where swarm cells. The hive did eventually swarm and left the parent colony queenless. Or so I thought. SO I added some fraems of brood. One without checking carefully that the queen from the other colony was not on it (Catch that queen). the other I know didn't have a queen because I did catch that one first. Then after getting done with that I thoguth that the originally colony might have simply had a virgin queen.
Lesson learned is that I am not experienced enough to make decisions during inspections. I need to close things up and stew on it for 24 hours. Once I have thought out the best course of action I can pack that away in my file of things I have done. but don't try to figure it out in 30 seconds while pulling frames from a hive.
I also have anew rule. any sign of queen cell means I have to find the queen in the colony. Either right then or later. But queen cells get the old queen split from now on. at least until that methods indicates I don't like it. So far It seems to me if I remove the old queen the colony will still swarm and be queenless. I am left with the old queen.
Significant Minority vs Insignificant Majority, 20% of causes produce 80% of the effects.