When I created a five frame nuc, the workers did not create a queen. I added another frame of eggs and capped brood from one of my main hives and they started a couple of queen cells but the queens must not have survived.
I decided to combine this nuc with another nuc that had a laying queen in it. Now, the combined "double" nuc does not have a queen.
This past weekend, I added another frame of eggs (made sure they were eggs!) to this double nuc and will check this weekend to see if I see a queen cell.
Question 1: What more could I be doing?
Question 2: I have heard that the laying workers will kill a queen. Do you think this is what's happening?