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Splitting an incipient swarm

Bees on entrance to the hive

The swarm lifted out of our hive at around 2 pm on Tuesday. It wasn't swarming weather, though. By the time the cluster had formed around a branch high in a box-elder tree, rain was coming down fast and it continued to rain for the rest of the day.

Honeybee swarmI sat on the back porch and watched the swarm for that entire time period, but I still wasn't quite able to see what happened between raindrops. However, I'm pretty sure I would have seen and heard if the swarm flew away en masse --- noticing their roar from the back porch was how I was alerted to the swarm in the first place, after all.

My best guess is that the swarm settled back down into the hive soon after it started to rain. This suspicion arose when I went to check the hive out around 4:30 pm and saw bees fanning a lemony odor into the entrance, which is what swarms do to attract stragglers once they find a new home. To confirm, I pushed my ear up against the boxes and heard a roar just as loud (or louder) than usual. Yes, I was 80% sure the swarm had gone back home.


Unfortunately, we didn't bait any swarm traps this year. So chances were pretty good that if the swarm left, it would disappear into the ether like our first one did. Not wanting to lose half of the hive's productivity for the year, I opted instead to beg them to stay.

Inspecting a hive"Beg them to stay?" you say. "What in the world are you talking about?" Well, a hive split can sometimes prevent an incipient swarm, especially if the queen ends up in one hive and the queen cells (which will soon hatch into new queens) end up in the other. The best way to ensure this happens is to go through frame by frame in search of both the queen and the queen cells, but a Warre hive isn't set up for fine-scale manipulation. So Mark and I instead opted to simply split the hive as best we could and hope we'd get lucky.

Langstroth frame

When I first saw this year's swarm, I suspected that our Warre-to-Langstroth converter had been a failure. Why else would the bees swarm if they had two empty boxes to build into? However, after removing the Warre half of the hive and placing it on a piece of plywood to keep buzz-bys to a minimum, I found that the top Langstroth box was entirely full of drawn comb neatly packed with honey and pollen! In other words, the converter was a resounding success.

Now that I do the math, though, I realize that I probably waited until too late in the spring to add more space. If there are queen cells about to hatch in the hive right now, then their eggs would have been laid in the first week of May...and we didn't put our converter in place until May 7. Next year, we clearly need to add more space to our hive in April, especially if we treat the bees to a bit of early spring feeding.

Capped honey and brood

Unfortunately, there was no brood in the Langstroth box. My hope had been that I could split the hive at the converter, ending up with one Langstroth hive and one Warre hive. But bees don't stay in a hive with no brood, so I had to instead leave the converter in place and divvy up the two Warre boxes between the two hives.

Best-case scenario, the queen will be in one hive and the queen cells in the other, and both will be ready for business as usual shortly. Worst-case scenario, hopefully there will at least be eggs in each hive that will allow the workers to make a new queen if all of the current monarchs end up stuffed together. In that worst-case scenario, we'd probably still see a swarm within the next few days, so I'll likely know one way or another pretty soon.


So now we have one Warre/Langstroth hybrid and one Warre hive and are crossing our fingers that they both take. Mark thinks he might be able to rig a way to set Warre frames inside a Langstroth hive so we can convert the other hive over to Langstroth with a shortcut method, and I'm looking forward to the basswood flowers opening on our tree soon, so there's lots of buzz to come in the apiary. Stay tuned!



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