I have a couple of nucs I am going to overwinter, by placing them on top of one of my strong full-size hive. This'll be a first for me.
I live in New England (MA), and have a question: When do I stack them on the hive?
It seems to me that once I stack them, I can't easily service the bottom hive. So if I am going to put on some emergency feed (sugar candy), I need to do that before I stack.