Mate your own queens – understand the emergence and mating timing

What you add

To use Queen Mating Outlook, you add a queen event against one of your saved apiaries.

• • a split
  • an artificial swarm
  • a sealed queen cell
  • an emerged queen cell
  • a virgin queen seen

For splits and artificial swarms, the tool also asks what queen stage was left in the queenless part. This is important because a split with eggs and young larvae is at a very different stage from a split with a sealed queen cell.

The tool then uses the event date and queen stage to estimate where the colony is likely to be in the queen-development process.

What the outlook shows

Queen Mating Outlook shows:

• • the current estimated queen-development stage
  • whether mating weather is important yet
  • the next useful mating-weather window, where one exists
  • a five-day view of possible mating-weather support
  • short learning notes about queen emergence, orientation, mating and laying checks

The aim is to make the tool useful for both experienced beekeepers and those still learning the queen lifecycle. Like me!

For example, if the event is still before any expected emergence then mating weather doesn’t really matter yet. The beekeeper’s priority at that point is to avoid unnecessary disturbance and watch for the expected emergence period.

If the event is in the virgin queen or mating-window stage, the weather becomes more important, because she needs to fly!

What weather matters?

Queen mating flights are most strongly supported by warm, dry, bright and calm afternoons. Standard direct-observation methods describe queen nuptial flights as usually taking place from around noon to late afternoon, often in calm and sunny conditions. They also note that above 20°C is generally suitable, while observations in colder climates may begin at around 18°C.

But Apiary Forecast doesn’t treat 20°C as a hard pass/fail line.

Some research reports reduced queen-flight duration at 15-20°C, rather than saying flight is impossible below 20°C. The same source reports that heavier cloud and stronger wind can delay queen and drone flights, while wind in the 2.6-3.9 m/s range can reduce queen-flight duration.

That matters in places like Scotland and other cooler, coastal or even sheltered areas. A calm, dry, bright 17°C afternoon may be more useful than a warmer but windy or showery one.

So the outlook treats cooler weather as reduced support, not an automatic failure.

Why drones matter too

Queen mating depends on drones being available and flying. Drone activity is strongly linked to the mating season and to afternoon flight behaviour. Studies using observation, video and RFID methods have looked at when drones leave the hive, how long they are active, and how they search for drone congregation areas.

That’s why Queen Mating Outlook focuses heavily on afternoon weather, rather than simply showing a whole-day forecast, because the science points that way.

How the science is used

The tool is based on practical beekeeping biology and published queen/drone flight research, including:

• • Lensky & Demeter 1985 on queen mating flights, wind, cloud and reduced flight duration at cooler temperatures
  • Heidinger et al. 2014, which used RFID to study queen nuptial flight duration and frequency, including the effect of temperature
  • Ayup et al. 2021 on honey bee drone activity during the mating season
  • BEEBOOK and standard direct-observation methods for queen and drone flight observation

What beekeepers should do with it

It can help you decide whether:

• • it’s too early to worry about mating weather
  • a virgin queen may now be entering a useful flight period
  • the next few afternoons look helpful or poor
  • you should avoid disturbing a colony during a likely mating window
  • it’s sensible to wait before checking for laying

A particularly important point is patience. Poor weather, delayed flights or cool conditions do not automatically mean failure. Equally, a good forecast does not prove mating has happened.

Queen Mating Outlook just gives you a clearer view of the likely timing and weather support.

The benefit

The value of the tool is that it brings together three things beekeepers often have to juggle separately:

What happened in the hive, where the queen may be in her development cycle, and whether the next few afternoons may support mating flights.

For anyone raising queens, making splits, managing artificial swarms or trying to encourage local queen lines, that could be very useful.

A note

This works with your private saved apiaries. You get three of those as a normal member. The observant among you will already note that you have up to six hive monitor windows, so you also now have up to six queen events per apiary.

Read the full guide…