Hello, Gary, from Jeanne,
The easy way I use, to get new queens for nucs, is to remove the original queen and a few frames of bees, pollen and honey from the large mother hive. That large hive them makes numerous queen cells. Once they are capped, I take each frame containing a cell, and move it to another nuc with frames of workers and provisions, letting them bring a new queen to maturity. Presto! Where there was once one hive, I now have 5 or 6. Amazingly, they build up enough size to bring in a nice little honey crop.
JEANNE