Queenless hive question

[applebwoi]

If I add a frame with a capped swarm cell to a queenless hive will they accept the queen when she emerges or kill her? Would it be better to make a nuc with this frame or try to get the queenless hive queen right? I also have several swarms I captured lately and could do a newspaper combine with the queenless colony. What is the best strategy with the best likelihood for success?

[Michael Bush]

Most likely they will accept the new queen.  The best strategy is to put the cell in two days before it's due to emerge.  If you're not sure then when the tip is brown...