On April 11, I caught a swarm and hived it. That hive appears to have swarmed this weekend. In a little over 2 months they have filled a deep, medium and shallow. The deep and medium are the brood boxes.
I didn't think that I would need to pay attention to that hive and see if they were going to swarm. I wasn't able to catch the swarm because it ended up about 30 feet in a tree.
I know that in the beginning of the spring I need to put in some empty frames to help control swarming.
But, how about now? The major flow is over. If I replaced some frames with empty ones, would they still have enough time to fill them up before winter. I didn't think that I needed to be paying attention to swarming with a young hive like that.
The queen must have been laying like crazy.