Re: Swarm problem....
What has helped me some is to read up on comb honey production. Comb production involves flirting with crowding to the point of swarming. Read that comb production colonies should be re-queened with current year queens as early in spring as possible and that second year queens are sort of geared up for swarming.
Out or 26 colonies this spring only about 6 or 8 cast swarms because I was aggressive about splitting any hive that showed signs of swarming ie: queen cells.
Put up swarm traps and prepare to accept the fact that you're going to lose some unless you have time to do a quick visual on each hive weekly minimum during prime swarm season.
If you work with it a swarm it is not such a bad thing. The bees left behind quickly have no babies to nurse or feed so they will fill a hive with honey. That's not such a bad thing when a month later the new queen is making babies and the hive is well-stocked with goodies.
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