I moved to a somewhat rural part of south central PA. In the year and a half that I've lived here, I've only seen 1 wild bee, and that one was dead in the filter of my pool. I now have 2 hives and manged to do something to both queens. I let the stronger hive build it's queen cells and found where the queen had emerged and taken care of the other cells. It's now been about 2 weeks and no sign of a queen. Could there be a dearth of drones for her to mate with? If I start rearing queens, do I need to first get the biodiversity necessary? Any advice would be greatly appreciated.