It depends on the reason you want to re queen.
The only reason I would re-queen a hive is if the old queen just isn't doing a good enough job. Pinch the queen and add a new one the next day.
If you want to re queen a hive every year just to keep a young queen, I would do it after the honey flow. This way she will go into the next year, which is her best, and build up before the honey flow.
The only reason I would re-queen a hive is if the old queen just isn't doing a good enough job. Pinch the queen and add a new one the next day.
If you want to re queen a hive every year just to keep a young queen, I would do it after the honey flow. This way she will go into the next year, which is her best, and build up before the honey flow.