Funny how the bees were so calm last week, but today coming out and wrapping themselves around my hands.........I removed a cell bar frame of queen cells to place in mini-nucs, and a little later returned it with new grafts. Rather than put all the cells in mini-nucs, I put three, protected with tin-foil, in hives where I'd be happy for the queens to be superseded. David Evans mentioned it last Friday:
a tip that Roger P had picked up, and which could be an easy option for requeening a defensive colony. (At the bottom of the page in blue.) RP says it works for him about 80% of the time. Nothing to lose by trying it out.