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Category: oil-seed-rape

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Everything started at least two weeks earlier this year. The good weather we experienced meant that I could start spring cleaning on 1st of April, well before any large flow.

I also took advantage of the now smaller post-winter colonies to quickly find and clip all the queens (except one).

Hive 9 was a real surprise. This was a colony which had been moved away from the main apiary due to suspected infection with sac brood. It was also one of two that I deliberately did not give a full winter-feed. Whereas hive 5, the other colony treated in a similar fashion succumbed early in the winter, hive 9 continued to thrive and once we were clear of winter, an inspection showed no sign of sac-brood and they had existed on less than a Miller feeder of syrup.

Hive 4 which was a poorly laying queen was moved out of line and replaced with the now healthy hive 9.

The first supers were going on on 13th April again 2-3 weeks earlier than in the past.

After the early start to the season we were then subjected to an extended period of very poor weather which confined the bees to their hives. This enforced stay-at-home induced a swarming instinct in all the colonies even though they were all on 2023 queens. Needless to say, it was the unclipped queen which was the first to go. Fortunately they stayed close to home and were captured and hived.

All the others with clipped queens were reduced to one queen cell and allowed to swarm. The little clusters of bees in front of each hive were gathered up and added to the swarm hive.

By mid May, all the oil-seed-rape had finished flowering and honey extraction started with several hives yielding 2-3 supers.

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I have had two swarm calls so far but they were only casts. This is a small secondary swarm headed by a virgin queen. They are bees never-the-less and by uniting them I have recouped one of my colony losses. They were treated with 24 hours of Apivar at the same time as hiving to knock down any varroa which had hitched a ride.

The girls have been foraging for oil-seed-rape honey but the nectar flow wasn’t as strong as I’d hoped due to the continual dry weather. This was also accompanied by foraging for hawthorn nectar on the may blossom. This is a rare honey which changes the aroma of the rape honey and crystallises very coarsely.

May blossom in the spinney

Queen cells had started appearing so now was the time to start making nucleus colonies to replace my winter losses. One QC in hive 3 was used to start a nucleus but the girls in their wisdom tore it down. A week later they had made 6 emergency queen cells.

One hive made three beautiful queen cells so I established another nucleus and gave the third cell to the other nucleus with the emergency cells.

The colony making the queen cells has not made any more so no need to do an artificial swarm.

During the CV lockdown, the road passing the apiary is no longer a tunnel of air pollution so the bees can can forage right up to the roadside.

Another lockdown effect that we have noticed is that without the noise pollution we can hear the whole garden humming.

On 12th of May, there were bees all round the garden pond so I knew the rape had finished. In the absence of nectar to fan for cooling and also thirst quenching they had resorted to water. I put clearer-boards on early next morning so I could do the first extraction the following day.

A second brief extraction for just two tubs and that was that. The June gap had already started a week before the end of May.

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Although on the surface it looked as if all 10 hives had survived the winter, the first spring inspections revealed otherwise. Two were queenless and two had drone-laying queens. The fifth was so weak it really didn’t deserve to survive.

Result; I have lost half my stock. Only once before in over 40 years have I ever lost colonies in the winter.

What was strange was that queenless hives 5 and 6 continued to forage keenly bringing in both nectar and pollen. The latter is said to indicate a colony being queen-right. Test frames of eggs from another colony were inserted into both. Had they no source of queen pheromones they would have immediately started to draw out emergency queen cells. No such cells were developed which was a weird phenomenon. The colonies continued to dwindle as no eggs were being laid.

They had to be united with another colony but a normal unite wouldn’t work as they thought they already had a queen. Their population was used to supplement the abysmally small, but queenright hive 2. Bit by bit they were moved closer together until they could be shaken out in front of 2. First I caged the queen in hive 2 just as a precaution and shook out the smaller colony and took their hive right away. A few days later I then did the same with the larger. The result is that hive 2 now has sufficient bees to care for brood and the queen is merrily laying away. By the beginning of May they should be large enough to take a super.

The rape came on flower and the first supers have gone onto the five healthy hives. This is where the excitement starts to build and we see the distinct difference between colonies. By the last week of April, hive 3 has three supers and hive 4 is still on its first.

The month has been gloriously sunny and as I gardened each day, the air was full of the gentle hum of the girls hard at work in the greengage branches and down at ground level on the wallflowers.

Of course, continual sunshine meant that the nectar dried up and by week four they were getting a little cross. A solid day’s rain in the last week has hopefully corrected the situation.

However, only half the usual number of bees means half the usual amount of honey so they’ll have to work twice as hard. Maybe the lack of air pollution due to CV lockdown will give them extra impetus.

To those I promised bees this spring, don’t hold your breath.

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Work continues in both the apiary and the workshop.

We’ve had no long cold spell again this winter. Maybe climate change means they are a thing of the past?

Never-the-less oxalic acid treatment had to be done, brood or no brood. Total drop varied from 570 down to 70 which I didn’t think was too bad. There was still a small natural drop the following week so I’ve followed up with an Apivar treatment.

Weeks of dull cloudy and cold weather has kept the bees confined to hive but a morning sunshine early in the month brought them out. It wasn’t just cleansing flights either. The aroma of the winter honeysuckle was hanging like a cloud around the shrub and the girls were foraging madly. I have at long last succeeded in getting some winter aconite to grow in the damson copse and their gloriously yellow blooms were a real magnet. No aconite in the spinney yet which is a real disappointment

Honeybees working the aconite

The Dartington Long-hive continues (unapace) to grow steadily. I have tried to do a little each day through the winter. The brood box is now finished, the roof is assembled and it is all ready for proofing. Honeyboxes and insulated dummy-boards can be gradually completed throughout the spring. The former are of course not vital as I can always use conventional supers if necessary.

The honey DNA testing results have come back from the CEH (Centre for Ecology and Hydrology). Some results were as expected but there were some surprises as well. The three varieties of open-pollenated rape were the main leaders in the spring and they showed up quite distinctly. The surprise was a noticeable content of sycamore. The spinney, which is only a third of an acre, consists of sycamore and elm 50:50 about twenty five years old but already yielding well. Unfortunately sycamore is an alien species and everyone I’ve consulted about the spinney’s future has said “You can get those out!”. We’ll see.

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My first honey extraction was very late this year due to the absence of rape honey. The field was right on my doorstep but no nectar.

That’s three years in a row with rape within easy flying and all they’ve harvested is pollen. I went to speak with John, the farmer, to see if he’d changed his seed variety recently but “No, I’ve been using the same variety for the last three years.”; Campus. A quick search revealed that research done by Newcastle and Exeter Universities found that modern hybrid rape, Campus in particular yielded nectar little better than water. The bees know best; not worth the energy.

It’s ironic actually that said farmer gets a subsidy for sowing pollinator strips along his headlands but can then sow a distinctly pollinator-unfriendly crop in the remaining 35 acres.

On a similar note, another long-standing member of Saffron Walden Beepers was talking with a farming friend who was disappointed that he could no longer appreciate the once beautiful aroma of his field beans. This beekeeper had moved some hives onto his huge field which he reckoned should yield in the region 1,000 lbs of bean honey. He got 150 lbs. Yes, the farmer had changed to a hybrid variety.

Who is to blame? Is it the farmers or the seed merchants?

Queen mating has been a problem this year with the loss of seven queens failing to return from mating flights. This has left me on the verge of a problem but I should just have enough 2018 queens to go into 2019.

The last two weeks of July have seen a terrific mystery flow and this has helped tremendously to overcome the oil-seed-rape loss; not so good for creamed honey but it is at least a harvest.

This mystery flow finished on the 29th. On the 30th I saw intense robbing of hive 1. I removed the entrance block and replaced it with one which had only a one bee-width hole in it and leaned a large sheet of glass on the front of the hive.

 

Single hole entrance block

By the time I had gone round all the other hives and narrowed their entrances down to winter-width (about 40mm) the intensity of the raiding had decreased noticeably. The hive inspections I had planned for that day were put on hold. Opening up a hive under these circumstances was only asking for trouble.

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This month sees the start of foraging in earnest and also the start of swarming.

Although the oil seed rape was only just down the road the bees only worked it for pollen. The bees foraging for nectar went in the opposite direction. I am now beginning to wonder if modern varieties of rape have significantly reduced amounts of nectar.

Whatever it was they preferred, half the hives worked it vigorously. One hive got up to four supers and the others to two or three.

The colonies which only just made it through the winter have struggled to reach supering size but as two of these have 2016 queens and will be requeened this season.

The first swarm I was called to remove was a poor little bedraggled specimen hanging from a tree near Thaxted Fire Station. It had been there several days and was trying to set up home out in the open.

Thaxted swarm

It was nearly dark when I arrived so it had to wait until the next morning; a night of torrential rain and it was still raining next day. Half of them had been washed down in the night and were comatose mixed in with the recent lawn mowings. It was a ladder job to reach the little swarm and I then swept up as many as I could from the ground hoping that once they were returned to the bosom of their family they would become resuscitated. This did in fact work and most of them recovered. They were a pathetic little bunch when they were eventually hived; just over one frame of 14 x12 in a nucleus hive.

The rape finished flowering two weeks ago and any resulting honey would normally have started crystallizing by now. It’s all still clear which again leads me to conclude that the nectar came from elsewhere. The eventual analysis will be interesting.

I’ve had to perform three Pagden artificial swarms so far with another one to do this week. At the same time as creating the artificial swarm I also take a two-frame nucleus with a queen cell so I have a second string to my bow in the event of a loss on mating flight. The apiary is getting rather crowded now with sixteen hives.

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Everything is late this year due to the very long winter; November to March. Colonies have been late building up but fortunately the rape has also been about two weeks late in flowering. This has enabled four colonies to be just about big enough for supering.

All the hives were spring cleaned between 14th and 20th April. This involved giving each colony a clean floor, brood box and crown board. All frames were inspected for disease and age and yellow spacers added to frames which had become too dark brown and needed replacing. These frames will be gradually worked to the edge of the box at each hive inspection and then replaced with foundation once any brood has emerged.

The dirty hives were scraped down and then scorched out with a blow-torch before being used again.

Stuart Roweth has produced yet another new version of his beegym and I will be trialing this in one of the larger colonies. (www.beegym.co.uk)

I have returned to the training scene this year with just two young lady students keen to learn about this absorbing hobby. Having just two students, rather than the six or seven in the past, will I am sure produce a much more rewarding learning environment.

The Asian Hornet justifiably continues to feature high in the list of threats. I have two lure traps, based on the National Bee Unit water-bottle design, hanging in the garden and charged with some of our own home-pressed apple juice. One by the hives and the other by the bee shed. Fortunately nothing yet.

The big question on my mind is whether 2018 will be a repeat of 2017 when it comes to oil seed rape. As the month comes to a close the rape has been on flower for two weeks now and the real-feel down in the apiary is -3, it’s blowing a gale and raining hard. It’s been like this for a week now and is set to continue.

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