19 min read

Temperatures and Taranovs

Some observations on the impact of low overnight temperatures on colony development and spring swarming, and the use of Taranov swarm control to partition the flying and 'non-flying' bees to prevent swarming.
A cluster of bees hanging from the edge of a sloping ramp leading to the entrance of a beehive.
Non-flying bees clustering at the leading edge of a Taranov board

Like many beekeepers, I'm often thinking about my bees at any time of the day or night. But like most beekeepers, I do my beekeeping during the day.

But not just any time during the day.

Most of my beekeeping is done between late morning and mid/late afternoon.

That's a 6-hour window, or just 25% of the day. During the rest of the time, the bees look after themselves — I don't bother them, at least, not usually.

In temperate regions, other than during a heat wave, that 6-hour period straddles the time when it's a good temperature to open the hives.

And, of equal importance, it includes the temperature at which the bees are much more tolerant of my meddling.

Graph of temperatures over the last 14 days, with all the lines overlaid emphasising the late-morning to mid-afternoon period when beekeeping is best undertaken.
The lows and highs over the last fortnight

My bees are reasonably well-tempered at the best worst of times, but they're a lot better at 15 °C than they are at 5 °C.

The timing of my trips to the apiary are therefore determined by my need to do something on a specific date (regular 7-day colony inspections, checking splits for queen cells, feeding the cell raiser) and by the temperature.

If the timing is important, it takes priority. I do whatever is needed irrespective of the temperature.

However, if there's some flexibility in the timing, I look at the weather forecast … and then usually have another coffee before setting off to the apiary.

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