I had a hive swarm last week and split it the next day, leaving what looked like a virgin queen in the new hive and the newest eggs available in the old hive. The idea was to let the virgin queen get going on her own in the original hive and let the bees make a new queen for the split.

I adapted S. Parker's queen calendar on queens and queen rearing to mark milestones for queen development in the split hive. I was able to estimate (within a day or so) age of the new eggs in the split hive, and after a little counting, use his queen calendar to help me manage the queen cells. (The calendar is actually designed for queen grafting, but is adaptable for a split).

In my case, 'managing' the cells in the split means to leave it alone during critical times in the development of the queen cell (vibration can harm the pupal metamorphosis in days 10, 11, & 12). Watching the queen cups being formed and capped has been fun-its been 20 years since I've done it).

Thanks to S Parker for making the queen calendar available to us.