And they’re off …

I posted last week on the relative lateness of the start of the beekeeping season here in Scotland 1. Having been away for a few days I was both surprised and disconcerted to find this waiting for me when I arrived at the apiary to conduct the first inspections of the year.

When is a swarm not a swarm?

When is a swarm not a swarm?

Surprised because I’d missed all the seasonal clues that indicated swarming might be imminent.

Disconcerted because, in the interests of full disclosure, I’d have to admit to it 😉

The colony behind the near-invisible one inch entrance hole through the bee shed wall is a double brood colony in an Abelo poly hive. It was headed by a 2018 queen (or had been 🙁 ) and had a nice temperament and good manners.

The queen was marked blue and one wing was clipped to prevent her flying off.

But it wouldn’t have stopped her trying to fly off. Instead she would have ignominiously spiralled to the ground 2.

Usually what then happens is she attempts to climb back up and the swarm gathers around her. In a standard hive this is often this is underneath the hive stand.

My guess was that she’d made it up to the landing board and stopped or got stuck there.

I had a gentle prod about in the beard of well-tempered bees but could see no sign of her.

With about 20 more hives to inspect I quickly decided to walk them into a fresh hive … I’d let them do this while I got on with other colonies in the apiary.

Don’t think, do

Walk this way

Walk this way

I put together a new floor and a brood box of mostly foundationless frames. I put one or two frames of drawn comb in and gently dislodged a couple of clumps of bees into the box.

Within a very short time more bees were marching down the wall of the shed and clustering between the frames of drawn comb in the brood box.

What started as a trickle became – if not a torrent – then certainly a determined stream of bees taking up residence in the new box.

To encourage them I balanced a split board across the tops of the frames to provide a welcoming dark ‘cavity’ for them to occupy. Very soon you could see bees fanning strongly at the opening between the split board and the shed wall.

Fanning workers

Fanning workers

I interpreted this as meaning the queen had entered the box and the workers were encouraging others to join her.

After an hour or so I moved the hive a few inches away from the shed wall, placed a crownboard and roof on and carried on inspecting other hives in the apiary. By this time about 75% of the bees had left the ‘swarm’ and entered the brood box.

Not so fast

And that’s when everything ground to a halt.

There were no bees fanning at the hive entrance. No more bees entered the box through the entrance. Instead they started leaving in dribs and drabs.

I’ve hived swarms like this before, or done the classic ‘walk them up a sheet’ having dumped them from a skep outside a hive. Other than this being a real spectacle, one of the striking features is that what starts as a mass of bees ends being an absence of bees … they all enter the hive.

'Walking' a swarm into a hive

‘Walking’ a swarm into a hive

Clearly something was wrong and I was beginning to suspect that there wasn’t a queen in the ‘swarm’ at all.

So I did what I should have done in the first place. I had a look in the original hive.

Hello there!

Blue skinny queen

Blue skinny queen

I smoked the double brood box gently from the bottom, intending to encourage the queen (if she was there) into the upper box.

The box was busy but not packed with bees 3, there were good amounts of sealed brood (and a really nice tight laying pattern on many frames).

There were quite a few ‘play cups’ and a few had eggs in them. This is one of the early signs of swarming.

I found the queen on the 19th of 22 frames.

Perhaps I was too gentle with the smoke 🙄

She was the queen I was expecting. Marked blue, though the paint was beginning to rub off a bit, and with the left wing clipped.

She looked like she had lost a bit of weight.

Big fat queens in full laying mode (which they should be getting to by late April) aren’t very aerodynamic so workers slim the queen down before swarming to improve her flying ability.

This queen looked to me like she’d been on the F-plan diet (but remember I’d not seen her since last August). In addition, the number of eggs in the colony was relatively low. This would also be expected if the colony had been preparing to swarm as queens reduce their laying rate in the few days before swarming.

What else could be seen?

Stores and pollen levels were good.

The notable absence from the hive was of well developed, sealed or unsealed queen cells.

A colony will normally swarm once developing queen cells are capped. A colony with a clipped queen often delays swarming for a few more days. It’s therefore usual to find sealed queen cells in a swarmed colony. There may also be unsealed cells as well.

~3 day old queen cell ...

~3 day old queen cell …

There wasn’t anything close to a sealed queen cell in the colony 4. The best developed were, at the very most, a couple of days old.

So what happened?

Other than the absence of well developed queen cells the colony looked as though it had swarmed.

If it walks like a duck etc.

Since the queen was clipped she had eventually clambered back to the hive and re-entered, leaving many of the workers who had left with her clustered around the hive entrance.

That’s currently my best guess 5.

If that was the case, notwithstanding the current lack of well-developed queen cells, they’d be trying again as soon as the weather was good enough. I therefore decided to preempt them by doing a classic artificial swarm.

I moved the queen on a frame with a small patch of brood into the box I’d used to try and ‘walk’ the swarm into. I then moved the – now queenless – double brood box a couple of metres off to one side in the shed. Finally I placed the queenright box in the place the original colony had occupied.

And what will happen?

Full details are in the description of Pagden’s artificial swarm. The flying bees from the double brood box will return to the box with the queen. The hive bees in the double brood box will start to rear one or more new queens.

And at that point I’ll intervene.

The double brood box has lots of brood and stores spread across 21 frames. The bees are well tempered, stable on the comb and have no significant signs of chalkbrood or other diseases (and Varroa and virus levels are exceptionally low – I’d measured both 6).

They are a good stock to make increase from.

I’ll check them in a  few days and see how queen cells are developing. Once there are good sealed cells I’ll split the colony into several 3-5 frame nucleus colonies. The final number will depend upon the number of good queen cells and the number of bees left in the colony.

It should be possible to generate half a dozen good nucleus colonies from a suitable double brood colony without too much of a problem.

First inspection summary

I got through all my colonies (eventually). With a reasonable number to compare it’s easy to define the good, the bad and the indifferent ones.

It’s much easier to do this once the season is properly underway, which is a good reason not to inspect too soon in the year. Some colonies are very early-starters, others lag bit. If you inspect too early you might consider the slow ones are dud or failed queens.

I was pleased to see that most were good or at least indifferent, with only a couple clearly exhibiting undesirable personality traits – aggression, laziness, running, following – or, in one case, disease (rather too much chalkbrood). These will be destined for prompt requeening and drone brood will be removed to reduce their contribution to the gene pool.

My overwintered 5 frame nucs looked excellent, with a couple needing re-hiving immediately.

Here's one I prepared earlier

Here’s one I prepared earlier

The first inspection is really little more than a check that things are all OK. It doesn’t matter whether I see the queen. If there are eggs present I’m happy.

Eggs? Overt disease? Stores? Brood? Space? … next please!

Overwintering losses

I lost 10% of my colonies this winter – two from 20. This includes both full colonies and overwintered 5 frame nucs.

One colony drowned. The lid and crownboard blew away in a severe storm and they were subjected to a three-day deluge over a long weekend when I was away.

Mea culpa. I should have had more bricks on the roof.

Spot the drone laying queen

Spot the drone laying queen

In the second colony the queen failed and turned into a drone laying queen (DLQ). This had been my worst-tempered colony last year and was scheduled for requeening. However, the queen I found wasn’t the clipped and marked one I’d left there in August. Clearly there had been a late-season supercedure and the replacement queen was poorly mated.

Although she was a bee I didn’t keep it is great to be beekeeping again 🙂


Colophon

And they’re off! is the phrase used by horse racing commentators at the start of a race. It is also the title of a song composed by William Finn from the musical A New Brain. The song is about the damage gambling does to families. There’s a good cover version by Philip Quast on YouTube.

Footnotes

  1. Relative to Kent or Dorset for example, not relative to previous years here.
  2. Writing that brings an image to mind of a biplane with a stuttering, smoke-belching, engine corkscrewing towards terra firma.
  3. Not even moderately packed considering the few thousand now occupying the box outside the shed.
  4. Of course, I might have missed one. Although I’m reasonably good at spotting them I’m certainly not infallible.
  5. What else did I consider? Was the colony so overcrowded they were bearding at the entrance? No. Was it insufferably hot in the bee shed and they were overheating? No (and there were two other colonies alongside, at least one of which was stronger, neither of which were behaving similarly).
  6. Total Varroa drop at late August/early December treatments had been <50 and the DWV copy number per worker was ~103, 1000-fold lower than seen in many apparently healthy hives and more than ten million times lower than seen in DWV symptomatic bees.

15 thoughts on “And they’re off …

    1. David Post author

      Thanks Robert … photography is a subject I’ve covered previously. For really good images of bees and beekeeping it’s worth looking at work by Eric Tourenet or Simon Croson that I reference in that post.
      Cheers
      David

      Reply
  1. Margaret

    I really value your posts, David. Last week I came across two strong colonies ready to swarm. These were first inspections where we were intending to mark the queen, but in both colonies (different sites) we couldn’t find her. In the end we carried out artificial swarms, moving the parent colonies more than a metre away and hoping if the queen is in this, then the house bees will knock down the queen cells through lack of foragers which were returning to the new box set up with a frame of eggs at the original site. However, when I returned to one apiary a couple of days later I noticed far too many foragers going in and out of the parent colony (which was actually about 10 metres from original site). I didn’t inspect either box, but moved the parent colony a bit further away to try to reduce the number of foragers. Not sure what to expect this week as it’s the first time I’ve had to do an artificial swarm without finding the queen. If you’ve already written about this, could you direct me to your post? Many thanks!

    Reply
    1. David Post author

      Hello Margaret
      I’ve not written about swarm control when you can’t find the Q. I’d usually persevere and find her. However, what you’ve done sounds about right. I suspect the large number of bees going into the moved (original) box were probably newly orientated flying bees – remember the laying rate of the queen is high (1000+ per day), all maturing at about the same time and becoming new flying bees. Moving the hive 10 metres should be more than enough to bleed off the older flying bees back to the original hive location. When you examine it a week after rearranging things I expect you’ll find the hive on the original site is reassuringly full of bees.

      I have one hive in which I’ve not seen the Q since last June. It’s strong, but not strong enough to swarm yet. I just might have to apply swarm control without finding her if I don’t see her next time.

      Cheers
      David

      Reply
  2. Archie McLellan

    My hives are beside a huge apple orchard, now in full bloom. The manager was kind enough to let me know that they were going to spray the following morning – so I shut the bees in the night before and didn’t let them out till mid afternoon the following day after the spray had time to dry.

    Pulling the foam entrance block out released an almighty torrent of bees. If ever the phrase ‘And they’re off!’ was appropriate, this was it.

    Reply
    1. David Post author

      Hi Archie
      I’ve seen a similar effect when a colony has got a bit hot being transported in a car. It can be quite impressive but indicates that they’re a bit stressed … but better that than sprayed 😉
      Cheers
      David

      Reply
  3. Jean Stewart

    I love the little “porch” outside the wall with identifying marks for the ladies to come home to. what’s between the hole in the outer wall and the entrance to the hive box? would love to see that on the inside.

    love your posts… LOVE, LOVE, LOVE

    Reply
    1. David Post author

      Hello Jean

      I’ve written about what’s behind the wall in previous articles on my bee shed. Essentially there’s a short plastic ‘tunnel’ that leads to a standard hive. The bees go backwards and forwards through this with no problem.

      Delighted you enjoy the posts.

      Best Wishes
      David

      Reply
  4. Jean Stewart

    thanks for sending the link. I wasn’t even aware of your blogs at that time. I’m in Vancouver, BC and a hobbyist with a few hives in my backyard (5th year). We use the Langstroth hives, I think a slightly different size than your “nationals”. Almost everyone here uses the screened bottom boards, as we call them. Lots of moisture here, so good ventilation too. Under the screened bottom board is a coroplast “drawer” much like a tray in the bottom of a bird cage, It catches the fallen debris, legs, mites, sand, et al. We often either spray it with a shot of Pam or other cooking oil or give a slight wipe with an oily cloth. This prevents mites from walking anywhere; they’re mired. I’ve gone one step further. Like lining the bottom of a bird cage with newspaper for easy cleaning, a roll of kitchen parchment paper is the right dimension within about one cm, which allows a bit of a scrunch into the shallow tray to form sidewalls of paper which hold it nicely in place. Super easy to remove the paper and with any residual oil on the bottom of the it helps keep the paper in place during the slide in. I squirt a bit of oil on the top of the paper too. It’s so easy to remove and study the contents in better light or with a magnifying glass to see what’s on it. (BTW, I’d never keep a bird in a tiny cage, but in my youth we had a budgie in our kitchen.)
    It might well be too much for a more production oriented beekeeper, but for a hobbyist, it’s a nice neat option.

    Reply
    1. David Post author

      Hi Jean
      I missed this appearing in the comments section … apologies.
      Langstroths are a bit bigger than our National hives, perhaps ~42 litres vs. 35 litres. Though of course there are variants all over the place – 8 or 10 frame Langstroths, deep Nationals etc. It can get very confusing. National frames have long lugs and are a bit easier to hold, though I’m sure I’d get used to Langstroth frames in due course. However, for better or worse, once you’ve invested in a few boxes you are stuck with them. I got my first bees from someone who used Nationals so I, like the majority of UK beekeepers, use Nationals.
      The oiled paper liner to the mite tray would certainly help keep them in place for subsequent analysis or counting. I use white plastic sign material (we call it Correx over here) which is pretty robust and can be scraped/scrubbed clean and reused.
      I hope you’re having a good beekeeping season … I know Vancouver and BC can be damp. Your rainfall is similar to the amount we get on the west coast of Scotland, being about 1.5 metres per year. Keeping the bees in a shed means you can inspect even if it’s a bit wet outside.
      Regards
      David

      Reply
  5. Jean Stewart

    we use the same material, we call it coroplast. I’ve scraped and scrubbed it too, but for ease and speed while working, i just lift the paper and replace it. Carry on!

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *