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Swarm Trap Success

Swarm Trap Success

I am loving the beekeeping.  2 swarms caught and hived in 2 weeks.  It feels like creating something from nothing. Quite magical.

I set up three swarm traps with pheromone lures in the middle of May and a month later, one of them has now attracted a swarm.

The photo and video below look like a big swarm, but in the end they could all fit into a 2 litre ice cream tub.  How many bees is that?  5,000?. Still “A swarm in June is worth a silver spoon” – does that mean I’ll get some honey or just that the colony will get to a size that survives the winter?

Swarm 16 June 2015
Swarm 16 June 2015

 

Swarm Trap Successful
Swarm Trap Successful

Below is one of the better videos as it was shot by a professional TV Director who just happened to be coming for dinner as I was hiving the swarm. Thanks Hannah.  A few seconds into the video you can still see I am a bit jumpy around the bees!

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Catching & Hiving Large Swarm

Catching & Hiving Large Swarm

Catching a swarm of honeybees should be on everyone’s bucket list.  It is one of the most beautiful, exhilarating and rewarding experiences life has to offer.

Swarm From East Facing Hive June 2015
Swarm From East Facing Hive June 2015

At the end of April, I bought 2 nucs, with last years Queens, and 6 weeks later they have now both swarmed.  I am confident this latest swarm came from the East Facing Hive in the farmer’s field.  Although this hive still has eggs and I didn’t spot a queen cell, it was looking quieter.  I’ll check for Queen cell in a week.

The reality of beekeeping for the novice/improver is not being quite sure what is happening.  My cousin Simon had 2 colonies 6 weeks ago, now he has 7.  The bees are feisty and he has no idea which hives have queens.

Unusually for me, the swarm catching and hiving went to plan.  The bees were on the branch of a tree at shoulder height. A few shakes into my swarm catcher bag and job was a good ‘un.

I put an empty brood box at the location of the hive and put Queen Excluder below to make sure madam stayed.  I added in some drawn comb and a couple of frames that were solid with winter stores as well as flat foundation.

I went back to the branch a few times as the bees kept gathering and shook them into the bag and transferred them to the box. The scout bees didn’t start fanning pheromones at the hive entrance until I grabbed a few handfuls of bees from the branch and ushered them through the hive entrance.

Is the Queen in the bag
Is the Queen in the bag?

Later I move the hive to desired location, added Queen Excluder above brood box (in addition to the one below) and jumbo feeder on top with thin sugar syrup.  Perfect.

So I now have three colonies. This one and the 2 original nucs (now in brood boxes) neither of which have mated queens.  The hive in the field has just swarmed but has 9 frames of brood and is quite strong. Will this be my productive hive this summer?  Or will this large swarm with laying queen get up to size for the July nectar flow?

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BBKA News: Seven Species Of Beekeepers

The Seven Species Of Beekeepers

This article was first published in the newsletter of The British Beekeepers’ Association (No. 222 – June 2015).

It’s taken me three years to confidently recite the seven species of honeybee*, but just as distinctive and varied are the different species of beekeeper. We come in all shapes and sizes, temperaments and abilities, and I’ve found it pays to know who you’re dealing with in order not to get stung.

When I first considered joining the community I presumed all beekeepers were jolly, eccentric men with beards. I imagined they would all listen to the Archers and buy their pants in M&S. I thought they would find a new, young novice like me to be a rather endearing revelation in the beekeeping world but I quickly realised I too fall into a very common breed of beekeeper … and, shame on me and my presumptions, I discovered that half of beekeepers are women.

The Virgin

I strongly identify with this novice group with their budget suits and eager grins. The virgins are becoming more common with 4,700 new beekeepers joining the BBKA each year recently.

Virgins are a bit nervous, often make mistakes, sometimes get lucky and often experience colony losses.  However, we’ve all been one and I think it’s really important to embrace new blood. The virgin does become Queen after all.

The Bumbler

I have just about advanced from Virgin to Bumbler, i.e. an improver.

Bee Suit - Sherriff Apiarist
Bumbler Beekeeper

I went from one to four hives. I’ve taken a couple of exams. I’ve bought lots of exciting equipment. And I can almost hold my own in a conversation with a Naturalist (we’ll get to them in a minute).

However, rather crucially, I still have not quite worked out how this beekeeping malarkey works. Like other bumblers, I do my best, try to make educated guesses but often fail miserably.

Still, you’ve gotta love a bumbler. We do, after all, make the rest of you guys look competent.

The Bee Whisperer

This is who all the bumblers aspire to be. The dudes who don’t wear gloves.  The people who are beyond exams, or, the Master Beekeepers who are the moderators of the BBKA online forum.

Earthy and natural or technical and scientific but always fearless and the bees know it. They definitely know their hoverflies from their honeybees and don’t have to google “how do I get rid of laying workers”.

It’s both intimidating and brilliant to meet a Bee Whisperer. It feels like you have ‘idiot’ spray painted on to your head but you also want them to tell you why your queen has not started laying.

So please bee whisperers – make friends with us bumblers … our bees need you!

The Natural Beekeeper

The philosophy of natural beekeepers is basically let nature take its course; that nature knows best. I wasn’t going to argue with my wife when she was screaming for an epidural and I’m afraid I do use a smoker and National hives.

However, I remain in awe of this purist beekeeper. YouTube clips of the Sun Hive are pretty amazing; made to mimic the more organic shape of natural bee hives. I like the thought of letting the bees feed on their own honey over winter instead of a sugar substitute. I love the idea of not using chemicals. But I’ve followed the conventional beekeeping road more travelled.

Of course, I’m slightly shamefaced when I come across a natural beekeeper but I hope they can appreciate that we are part of the same passionate genus, if not the same species.

The Wagglers

Bees do the waggle dance to attract attention and there is a new breed of beekeeper which isn’t shy of showing off their hives. From the trendy Hoxton boys with their beards, to the bloggers like me; we are just as likely to send a Tweet when we discover our queen as we are to mark her.

The old school may look on bemused but there are benefits to this swarm of social media. More people are attracted to looking after bees and we are all becoming better beekeepers by sharing information.

The Workers

Some may see profiteering from honey not to be in the romantic spirit of the craft but I think any beekeeper who advances UK honey production and availability is a positive.

Workers may be producing tons of honey rather than tens of jars but basically that’s because they are doing something right. I’ve visited several large producers myself and I can vouch for the fact the sites remain gorgeous and the honey super-tasty.

Such is the appetite to turn a hobby into a career, the Bee Farmers Association now runs an apprenticeship scheme for people wanting to become professional beekeepers. And good luck to them I say.

The Foragers

Like bees, these beekeepers are pretty thrifty. They get scraps of wood and turn them into fully functioning hives. Flat packs are an anathema to them.  And they probably shake their head in disbelief at people like me who are afraid to drill a hole and have been known to assemble brood boxes in such a way that the frames don’t fit inside.  OK … I’m going to admit something … it’s actually cheaper for me to buy pre-assembled hives because of all the mistakes I make! I am 0% forager.

Conclusion

The BBKA has about 23,000 beekeepers and, of course it’s simplistic to categorise only seven breeds, but it’s clear we do come in very distinctive varieties.

We all have varied styles and purposes and sometimes, like the bees themselves, we can be a bit brutal with each other. Still, like any hive, the crucial thing to remember is that we are all part of one community; one that hopefully has the common goal of keeping bee colonies flourishing (whilst enjoying some honey on our porridge).

* I understand there are seven species of honeybee, all members of the genus Apis.  Apis mellifera (European honey bee).  Apis cerana (Asiatic honey bee).  Apis florea (red dwarf honey bee) and Apis andreniformis (black dwarf honey bee).  Apis dorsata (giant honey bee).  Apis koschevnikovi (Koschevnikov’s bee). Africanized bees.

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Swarm Trap & Pheromone

Swarm Trap & Pheromone

Inspired by other bloggers and my cousin Simon I have set up 3 hive traps containing a swarm lure using a pheromone (Nasanov).

I have bought these swarm traps that are made from a moulded fibre material that should last several years and is designed to be like the hollow of a tree.

Swarm Lure

I’ve also attached some swarm lure inside which contains a synthetically produced Nasanov pheromone. The Nasanov (alternatively, Nasonov) pheromone is released by worker bees to orient returning forager bees back to the colony.  Apparently, it also attracts scout bees and swarms.

Best Swarm Trap Location

I have read that is best to place traps about 150m away from the target hives and up a hill if possible. Also, best to place the traps as high as you can (without risking your self) and south facing. Mine are all in trees about 1.5m up.

How Effective Are Swarm Traps & Lures

There is evidence that swarm traps containing pheromones are 5 times as effective as traps without the lure.  “In new clean traps, those with pheromone attracted 19
swarms; those without pheromone attracted only 4 swarms (Schmidt, J. Chem. Ecol. 20:
1053-56 [1994]).”

And traps with lures are 4 times as effective as using old comb. Some of the results were summarised in the December 1990 issue of American Bee J. on p. 812. Essentially, the pheromone traps caught 13 swarms to the 3 of the traps with comb and no pheromone.

I would love to hear from readers about the effectiveness of their swarm traps.

Film Of Beekeeper Hiving Swarm From Trap

I like this video. Another beekeeper with no protection. Doesn’t seem too bothered by the bee stings.

Apiary Update

I had a disastrous winter and had to buy 2 nucs. I installed these on 25 April and inspected yesterday. One hive had 10 frames of bees and the other 5 and a half  frames. I’ll add supers to the stronger hive shortly.

Bee Suit - Sherriff Apiarist
Installing Nuc Of Bees

Also, my one surviving hive from the winter only has 2 frames of bees but I don’t understand why. It has last years queen, pollen and stores. Low/zero varroa. I can see eggs and larvae in various stages but 1 in 10 cells also has 2 or 3 eggs. This could be due to (a) laying workers, (b) a failing queen or (c) not enough workers to properly clean the cells hence queen lays more than one egg in cell. Perplexing. Photo below from this hive. I’m keeping it going to see if it expands. Any thoughts?  You can click on photo and zoom in if you want a closer look.

Eggs in cells
Eggs in cells (16/05/2015)

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Supering Up & Supering Down

Supering-Up & Supering-Down

Supering-Up – What Is It?

Supering, or supering-up, is when beekeepers add supers (the small boxes for honey) on top of the brood box.  This is where the worker bees store the honey that we can then harvest and extract.

How Many Supers Do I Need?

Beehive packages usually come with 2 supers. An average honey yield in the UK for a hobby beekeeper is the equivalent of 1 super, so in theory 2 supers would be enough most of the time.

However, in a good season you might have 3, or even 4 supers, on a hive (though probably not every hive). You could manage on less if you harvested and extracted during the season.

I now have 4 supers per hive.  This is based on the advice of Ian McLean (National Diploma In Beekeeping), 40 years experience and who has written for the “in the apiary” section of the BBKA news.  In turn, his advice is based on his experience and research by “Rinderer & Baxter” who gained 30% more honey with the practice described below as compared with the 2 supers approach.

His advice also appeals to the optimist in me.

Bee Hives - Mid July
Bee Hives – Mid July

When Do I Add Supers?

In advance of the Spring nectar flow – which is approximately mid-April in the UK.

The standard advice is to add another super when 7 of the 10 frames in the super below are covered in bees.

Ian’s advice is to add 3 supers at the start of the Spring nectar flow. The theory is that the bees use all the space in the 3 supers like a drying room, allowing the water to evaporate off the nectar and thus produce more honey.

What If I Have Flat (Not Drawn) Foundation?

  • If all your supers are flat foundation – use 2 supers. This will encourage them to draw them out
  • If you have one super that is drawn and one super that is flat – put the super with flat foundation on top

When Do I Remove Supers?

You can remove supers and extract them at any time so long as the comb is capped.

In areas of oil seed rape, it’s pretty much essential to do an extraction after the first nectar flow before it granulates in the comb – about the end of May.

Many beekeepers do one extraction at the end of the Summer nectar flow – about the first week in August in the UK. I aim to remove the supers in the last week of July so that the bees still have surplus nectar to forage whilst I add Apiguard and then they forage on ivy in September/October.

The 4th super is used when you remove the 3 supers for harvesting,  You put this super on the hive to give the 60,000 bees the space they need rather than squashing them into a brood box. The foundation can be flat, you are just making space for all the bees. They are unlikely to draw the comb at this time of year.

Variation – Just Using 3 Supers

I think you could try a variation to the method described above. You could put the 3 supers on at the start of the Spring flow, but at the end of Summer you could make up 2 supers of capped honey and leave a super of uncapped or partially capped honey on the hive. I have been advised to place this super below the brood box at the end of the flow so that (a) you can place the Apiguard on top of the brood box and (b) as the bees go into Autumn and Winter the cluster will start at the bottom of the hive and then make their way up giving more stores and better ventilation (see post link below).

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Guests Checking Out Of Bee Hotel

Guests Checking Out Of The Bee Hotel

Back in May and June last year I posted about my Eleven Guests At The Bee Hotel (or Interactive Mason Bee Management System House as it’s known in the States).  This American name still makes me smile and continues to remind me of a story a friend, who worked in Houston, told me, about a colleague who ran into the room to say that the “European Electric Water Heater was about to explode” when he was simply boiling a kettle.

Well … an incredible 11 months later they have started removing the mud plugs and checking out.

Solitary Bee In Bee Hotel
Solitary Bee In Bee Hotel

And this is what it looked like in June last year.

Eleven Guests At The Bee Hotel
Eleven Guests At The Bee Hotel

I was really surprised at how long they have stayed.  I thought they would just be in their a few weeks.  At times over the winter I thought they must have died. I have now read up on the life cycle of the Mason bee and understand the eggs get laid in Spring and by the summer, the larva has consumed all of its food and begins creating a cocoon around itself and then enters the pupal stage. The adult matures in the autumn or winter and hibernates inside the cocoon until Spring.

Winter Colony Losses

So whilst it appears that I might have zero winter losses for these Mason bees, my honeybee colonies have suffered higher losses.

If you have experienced high winter colony losses you are not alone. I have documented my losses and have had  numerous emails from readers regarding theirs. The email below is typical and from a follower of this blog who has been beekeeping about 2 years:

“I have been following your exploits and I can empathise as I did grow to 3 hives at home last year from my initial 2 nucs, but they were quite weak even at the end of the summer. I lost one over the winter, very similar to yourself. Of the other 2 one is hanging in and I have brood but the 2nd which was a virgin queen I actually witnessed hatch last year and was going strong has suddenly gone AWOL/ more likely died ; and I have no brood. Strangely all hives have masses of store.  Anyway I have consolidated the remaining  2  which in hind sight I should have done last year to try and strengthen the colony. So at home I have 2 vacant hives as well.

At work I homed a swarm I collected in July and she is text book and gave us 40 x 8oz jars of honey compared to the 26 jars from 3 hives at home.  She has loads of room and I have a spare hive there ready to split if I need to in a few weeks time.”

With oil seed rape beginning to show their yellow flowers, the first nectar flow is almost upon us.  Good luck to all!

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Brood Comb – Photos

Brood Comb – Photos

It’s warming up here in the UK with the temperatures pushing an unseasonal 19C. I am sure many beekeepers have had the excitement of their first inspection of the year. I even managed to find the queen that evaded me last year and marked her for good measure.

It is vital to be able to read the comb and understand what healthy comb and diseased comb looks like. Below are some photos and descriptions. At the end of the page are some links with further information.

Please email me any other photos you would like published on this page.

Healthy Brood Comb With Capped Worker Brood

Capped Brood
Capped Brood
Source: BeeBase, Crown Copyright

This is what we like to see. Many of the uncapped cells you can see are following the lines of the wire that strengthens the foundation.

Healthy Brood Comb With Eggs In Cells

Bee Eggs In Cells
Bee Eggs & Larvae In Cells
Source: BeeBase, Crown Copyright
  • Healthy: Single egg in centre of cell, eggs in every cell
  • To spot eggs have your back to the sun and tilt the frame

Brood Comb With Multiple Eggs In Cells

Multiple Eggs In Cells
Multiple Eggs In Cells
Source: BeeBase, Crown Copyright
  • Cells with multiple eggs or eggs at side of cell or spotted pattern of egg laying means you have a poor/old queen, drone laying queen or laying workers. Laying workers eggs are unfertilised and develop into drones; the signs are similar to those of the drone-laying queen, except that the brood pattern is often less compact. Also there will be multiple eggs present in some cells, often on the side walls as well as at the bottom of the cell.
  • Treatment: Older queens  or queens running out of sperm – re-queen.  Laying worker colonies are best destroyed.

Healthy Brood Frame With Eggs & Pollen

Honeybee eggs and larvae
Honeybee eggs and larvae

Super Frame With Capped Honey

Frame Of Capped Honey
Frame Of Capped Honey

 Capped Drone Brood

Drone Brood
Drone Brood
  • This was drone comb created below a standard brood frame which I then culled as part of varroa management. Drone brood is slightly wider and stands out more than worker brood.

Brood Comb With American Foul Brood (AFB)

American Foulbrood (AFB)
American Foulbrood (AFB)
Source: BeeBase, Crown Copyright
  • Bacterial disease
  • I find it helpful to remember that A in AFB is for “After” and E in EFB is for “Early”. “After” because the signs are visible after the comb is capped.
  • Signs of AFB: cappings sunken, perforated, might look wet; spotted brood pattern; foul smell. Insert a matchstick into a suspect capped cell and it comes out a ropey, gooey mass

Brood Comb With European Foulbrood (EFB)

European Foulbrood (EFB)
European Foulbrood (EFB)
Source: BeeBase, Crown Copyright
  • Bacterial disease
  • Larvae die before they are capped (unlike AFB which die after capping)
  • Signs of EFB: twisted larvae in base of cells, larvae light brown colour, sunken cappings, a our smell (but not as foul as AFB)
  • Matchstick test does not work

Chalk Brood

Chalkbrood
Chalkbrood
Source: BeeBase, Crown Copyright
Chalkbrood
Chalkbrood
Source: BeeBase, Crown Copyright
Chalkbrood Dummies On Hive Floor
Chalkbrood Dummies On Hive Floor
Source: BeeBase, Crown Copyright
  • Fungal disease

Wax Moth Damaged Comb

Wax Moth Damage To Comb
Wax Moth Damage To Comb
Source: BeeBase, Crown Copyright

Deformed Wing Virus

Deformed Wing Virus (DWV)
Deformed Wing Virus (DWV)
Source: BeeBase, Crown Copyright

Damaged Comb Due To Varroa Mites

Damaged Comb Due To Varroa
Damaged comb or unfinished brood capping can be an indication of high varroa infestation
Source: BeeBase, Crown Copyright

 Varroa Mites On Honeybees

Varroa Mite On Honeybee
Varroa Mite On Honeybee
Source: BeeBase, Crown Copyright

 Nosema

Nosema Apis - Dysentery On Frames
Nosema Apis – Dysentery On Frames
Source: BeeBase, Crown Copyright
  • Protozoan disease affects intestinal tracts like dysentery in humans.
  • Signs: slow build up in spring, bees aimless in front of hive, dysentery inside and outside hive
  • You can only be sure you have Nosema is by identifying the spores under a microscope. Read more at my recent post Nosema – Advice Required.

Bald Brood

Bald Brood
Bald Brood
Source: BeeBase, Crown Copyright
  • Signs: small patches of normally developing larvae with uncapped or partially capped cells.

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  • Bee Hygiene: Gives more detail on honeybee diseases, including some PDF downloads from NBU and how to avoid spreading disease from hive to hive
  • Varroa Management Guide
  • Catch up on events in My Apiary – it’s been a disastrous winter – but I’ve learnt a lot

BBKA News: Melissophobia – Fear Of Bees

Melissophobia (or Apiphobia) – Fear Of Bees

This article was first published in the newsletter of The British Beekeepers’ Association (No. 222 – April 2015).

I feel I need to come clean.  I have mixed emotions when inspecting bees, alternating between delight and wonder, to slightly nervous and occasional panic.

Melissophobia is an unreasonable fear of bees.  Surely, there should be a word for a reasonable fear?  With a particularly aggressive colony, my fear seems reasonable. Those little buzzing things sting.

Having a fear of bees is somewhat unfortunate for a beekeeper but it must be quite common. Surely most beekeepers heart beat increases when they hear the roar of 60,000 bees – especially if you have kamikaze bees.  Not all beekeepers can be the type that are happy to inspect their bees with little more than cotton wool in their nose and ears. Surely some, like me, are what they call metrosexuals (i.e. men who have been known to run away from spiders).

Fatalities due to honeybees are rare.  In October last year it was reported that a beekeeper in the UK (with known anaphylaxis) died of a honeybee sting and the article I read quoted an Office of National Statistics official that a man last died of a bee sting in 2012 in the UK. There seems to be a higher proportion of deaths attributable to bee stings in the USA, where in 2000, the World Health Organisation reported that, there were 54 deaths attributable to bee stings (from a population of 281 million people and where 90 people/year die of lightning strikes). Perhaps, this is due to an increased prevalence of Africanised bee.  So with these low rates of fatality it is apparent that my fear is not rational. I know that probably the worst I’ll get is some painful stings, a swollen leg and a lack of sympathy from my wife – but still, when you’re faced with a hive, it’s not just a bee you’re contending with, it’s thousands of them. Yes I know that the average adult can safely survive a thousand stings, but what if they ALL get me?!?

Facing The Fear

Of course the recommended treatment for phobias is to face your fear, something I will be doing quite a lot over the coming months, with the first inspection of the hives imminent.

This year though I’m going in prepared with my apiary armoury.

In my early days I had some lovely bees and thought that smoke was an unnecessary accessory. As the bees created stores and had something to defend I became a smoker.  I now have a bucket-sized smoker. I am resigned to being the Dot Cotton of beekeepers.

Smoking Hive
Smoking Like Dot Cotton

Clothes-wise, I have learnt that trainers with socks over jeans does not provide much protection especially when you stand in front of the hive entrance.  I have discovered that bees don’t sleep and that feeding at night does not mean that the bees won’t fly/pour out of the hive.

bee sting reaction
Bee Sting Reaction

I currently find myself with a particularly aggressive colony*. When I remove the crown board the bees surge upwards and pour out of the hive like a scene from my worst nightmare. They attack every weak spot.  Down my boots.  Through gloves.  They even sting the tips of my ears where they touch the suit.

I now wear marigolds under my regular gloves.  I tape up my boots. I wear thick shirts and jeans under my bee suit. I wash my gloves and clothes regularly to reduce any sting pheromones that might linger and that would initiate more attacks.  I have all the rumoured remedies on hand (onions, toothpaste, lemons and half the contents of Boots). Any pretence of me being a brave-beekeeper is well and truly annihilated.

When I do an inspection, of this aggressive hive, I’m in and out and do the minimum required. I have decided they are impossible to inspect after June.

My Skin Breaks Out In, Err, Hives!

Usually I go through the normal cycle of pain, swelling, itching and very tired for a few days if I’ve been stung by upwards of ten bees, but one time due to a combination of being stung and high anxiety – my skin broke out in, er, hives. It was so bad even my wife was sympathetic. This is all somewhat ironic considering I started beekeeping as a way to de-stress.

The solution is obviously to get some nicer bees. Ones that like their beekeeper and welcome a yearly raid of everything they’ve spent their little lives working towards.

My plan is to requeen as soon as possible this year (June) and an old boy has offered to come and jointly inspect the colony in April and perhaps requeen with some of his more gentle Queens.  I think he thinks I am either doing something terrible to the bees rather than me having a particularly aggressive colony.  Either way – it will be fantastic to see an experienced beekeeper working with this colony and see if he is able to charm them.

Advice

It’s always good to know how other beekeepers handle their hives. Have you found any impenetrable material to protect us from stings? How do you make your inspections less risky? If nothing else, how do you illicit more sympathy from your other halves when you do get stung? Do let me know if you have any ideas.

* When I wrote this article for BBKA News I did have an aggressive colony, but unfortunately I lost  it at the end of February (Post: Colony Post-Mortem).

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Nosema – Advice Required

Nosema – Advice Required

Synopsis: Colony has died. Evidence of dysentery (photos below). Possible Nosema. Not wanting to use acetic acid – should I destroy all the frames and boxes or use hot air gun? Details below. Grateful for advice.

A month ago this hive was looking quiet, with a few flying bees. There were also signs of dysentery (see photo below).

Hive One - Dysentery - Feb 2015
Hive One – Dysentery?? – Feb 2015

At the weekend I found there were no flying bees and opened the hive.

I found signs of dysentery.

Dysentery on frame
Dysentery on top and middle of frame
Dysentery on top frame
Dysentery on top frame

 

Dysentery on hive floor
Dysentery on hive floor (in middle of photo)

I found the dead queen (who was 5 years old).

Dead Queen
Dead Queen (with blue spot)

I found some dead bees ready to hatch out.

Unhatched bees
Unhatched bees

Nosema

Due to the presence of dysentery it is possible that the colony died of Nosema.  Nosema is a parasitic microsporidian fungal pathogen that invades the gut of the bee. There they multiply rapidly and are then excreted by the bees. Spores are picked up and swallowed by other bees.

The only way to diagnose Nosema is by identifying the spores under a microscope. I don’t have a microscope (yet).

Dysentery is also often associated with Nosema. But the dysentery I found in the hive might be as per usual levels of winter excretion. Hence, I cannot be 100% sure the colony had Nosema.

If it was Nosema the spores can last 12 months and infect new colonies of bees placed in the hive.

Conclusions

The hive could have died due to one of the following reasons, or combinations thereof:

  1. Poor performing queen (as she was 5 years old)
  2. Cold (due to lack of insulation)
  3. Nosema (due to the signs of dysentery)

Reason 1 could have led to a weak colony and then to reasons 2 and 3.

Next Steps

Freezing frames does not destroy Nosema spores.

I have a hot air gun (heats up to 600C and does destroy the spores) but don’t want to use acetic acid as I only need to sort out one hive, don’t have the space for fumigation and don’t want to get involved with acetic acid at this stage in my beekeeping.

I am struggling to find good advice on the following options.

  1. Destroy all frames and boxes? This seems over the top and expensive.
  2. Destroy all the frames and use the hot air gun on the boxes? This will give near 100% piece of mind. But again looks over the top for a diagnosis of possible Nosema
  3. Destroy frames which have dysentery and use the hot air gun on the tops of other frames and boxes? This is my current plan but will not eradicate all the spores
  4. Hot air gun tops of all frames and boxes?

As ever – grateful for advice.

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Best Bee-Friendly Flowers (Evidence-Based)

Best Bee-Friendly Flowers (Evidence-Based)

Spring is in the air and many gardeners are beginning to think about what to plant.

But beware – many cultivated garden plants have been carefully bred for their colour and flower size not their pollen and nectar loads and the results is that many are sterile and no good for bees.

Echium vulgare (vipers bugloss)
No. 1 – Echium vulgare (vipers bugloss)
Photo courtesy of rosybee

So which garden plants are best for bees? Which flowers produce the most nectar and pollen per square metre over the year?  These are the types of question that rosybee (online plant nursery in Oxfordshire that sells plants for bees) set out to answer and the results were published in the March 2015 edition of the BBKA News.

Borage (Borago officinalis)
No. 2 – Borage (Borago officinalis)

This research ranked garden flowers by taking the average number of bees observed per square meter and multiplying this by the number of weeks the plant was in flower.  Of the 45 flowers tested the research ranked Echium vulgare as the best plant for bees and the next three were Borage, Hyssop and Helenium autumnale.

Helenium autumnale
No. 3 – Helenium autumnale

Below is a snap shot of the results but the full report is well worth a read (link to research).

Best Bee Friendly Flowers
Best Bee-Friendly Flowers (rosybee research)

I think the borage will work best for me (photo further up) and I have tracked some down. It can be used as a herb too.  I’ll take photos with bees on it in due course and encourage neighbours to take cuttings.

Hyssopus officinalis
No. 4 – Hyssop (Hyssopus officinalis) – Photo courtesy of rosybee

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  • If you live in the UK and want some bee-friendly plants delivered to your door, then the rosybee website and plants are well worth a look.  It is also inspiring to read about their creation of a 6 acre bee haven using sustainable methods – a dream of many beekeepers!
  • Internal page on Bee Friendly Plants & Flowers

February In The Apiary

February In The Apiary

Hive Two

Let’s start with the good news.

Hive Two looks healthy.  20 bees flying around at any one time on sunny days and I placed the varroa count board under the hive for 6 days and counted 0 varroa. I suspect that another reason for it’s success is that it is protected from the wind and has an insulated roof. Photos below.

Hive Two - Flying Bees - Feb 2015
Hive Two – Flying Bees – Feb 2015
Hive Two - Varroa Board - 28 Feb 2015
Hive Two – Varroa Board – 28 Feb 2015

Zoom in below – see if you can find any mites:

Hive Two - Varroa Board - Close up
Hive Two – Varroa Board – Close up

This hive has been varroa-free since May 2014. I wrote about this under From 2,000 To 0 Varroa In 8 Months.

Hive Five

I wrote about Hive Five under Colony Post-Mortem. I have now placed old comb on the bonfire and the good frames are currently in the freezer. Conclusions: died of mite overload and cold.

Hive Three

This is the other hive I moved which could also be too exposed to the elements. I saw plenty of flying bees two weeks ago but it has been quieter recently. I counted 6 mites over 6 days on the varroa board which calculates a rough estimate of 50-400 mites and treatment required in 3-5 months.  There was not much debris on the board, see photo below, so I’m worried about Hive Three too.

Hive Three - Varroa Board - 28 Feb 2015 - 6 mites
Hive Three – Varroa Board – 28 Feb 2015 – 6 mites

Hive One

I think there are some bees in Hive One, but only a few. The Queen is five years old. I’m hoping she will supercede. I have yet to place a varroa board underneath. Photo of landing board below. Is the brown stuff dysentery or propolis or mud? And would some dysentery here be OK or bad?

Hive One - Dysentery - Feb 2015
Hive One – Dysentery?? – Feb 2015

Conclusions

It looks like I will have had a terrible winter. The reasons:

  1. In at least one hive, I failed to adequately control the varroa. I need to improve on this.
  2. In the dead hive and the two weak ones, despite good intentions, I have not insulated the roofs and they have porter bee escapes and vented roofs allowing air to flow through and chill the bees. I guess quite a few other new beekeepers have this problem, as this is how the hives arrive. I will use solid crown boards and insulated roofs next winter (but guess it is good to allow ventilation in summer)
  3. Moving the two hives 100m over rough ground would not have helped. I will only move nucs or swarms in the new out-apiary location rather than move full colonies

Hard lessons for someone who was hoping to expand to 6 hives this summer.

I’m also thinking that bee equipment suppliers should include roof insulation as standard and advice on closing off any vents over winter.

Colony Post-Mortem

Colony Post-Mortem – First 2015 Winter Loss

Post-mortem: An examination of a corpse in order to determine cause of death.

I need your help with the determination. There are comments and photos below and a video at the end.

Beekeeper Inspecting Dead BeesBeekeeper Inspecting Dead Bees
Me Inspecting Dead Bees

Was It A Weak Colony Going Into Winter?

No. This hive had 11 frames of bees in September and there were live bees in the hive over Christmas. That said, there only appeared to be about 500 dead bees in the hive (see photo above). Had the others absconded or died over the winter and been removed from hive by the live bees?

Was It Starvation?

I don’t think so. The frames were heavy with stores and I don’t think the bees could have been isolated.  A few bees had died head first in the comb – but very few.

14x12 Frame Of Stores
14×12 Frame Of Stores
Sugar Stored In Comb
Sugar Stored In Comb
Pollen In Frame. Is that white pollen on the left or sugar stores?
Pollen In Frame. Is that white pollen on the left or sugar stores?

Was It Disease?

I don’t think so. There is mould in the frames (see photo below) but no chalk dummies. There was no foul smell.

Mouldy Frame - But Not Chalk Dummies
Mouldy Frame – But Not Chalk Dummies
Frame With Pollen (& Sugar Stores?) On Left; Mouldy In Centre
Frame With Pollen (& Sugar Stores?) On Left; Mouldy In Centre

Was It Varroa?

Maybe. Despite a (low/middle) varroa count of 130 in mid-July (I counted 30 mites over 9 days in July and put this into the NBU calculator which estimated I had 130 mites), followed by Apiguard in August and Oxalic acid in December, there did appear to be lots of varroa on the frames and on the bees. See photo below – I count over 20 mites in a small area. Did this contribute to some sort of colony collapse?

Varroa On Frame
Varroa Mites On Frame

Did the Queen Stop Laying?

Maybe though I saw capped brood and dead bees about to emerge out of cells (see photo below). Cappings are a bit ragged which I think might mean varroa.

Dead bees emerging from cells
Dead bees emerging from cells
Dead bees emerging from cells (2)
Dead bees emerging from cells (2)

Did They Get Too Cold?

Maybe. The location is quite exposed. I have not put insulation under the roof of this hive. The entrance points into a prevailing wind (but it has narrow entrance plus mouseguard).

Was It The Move?

I moved them 100m over Christmas. Perhaps some of the bees returned to their old hive location?

Conclusion

A lot of maybes and no certainties. Frustrating. Such is the life of a beekeeper.

On a positive note, I feel like I have done as much as I could for this colony. It seemed to be strong (and aggressive).  Hence, I’m not as upset as when I feel like it has been my fault. Overall, I’m sorry for the bees that have gone through this experience and disappointed as it means less bees and honey this summer.

Video Of The Inspection

Hmmmm. Not sure if I should expose myself as such a novice? I struggle to just get the frames out. And I seem to be wearing a bee suit when there are no bees. Apologies for the out of focus shots of the comb.

And if you want more information, I have my notes for the last 12 months on this hive: Hive Five Record Card.

Over To You

  1. Grateful for your thoughts on why this colony died?
  2. What should I do with the frames that are mouldy in the hive? Leave them and let next bees clean it up? Or cut out the mould?
  3. On some of the photos above, is it white pollen or sugar stores?

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Post-Script

Based on comments to-date and my experience of this colony, I am minded to think that the main issue was the high varroa count and that insulation and the move whilst not helpful were not the prime causes.

Lessons learnt: I’ll apply Apiguard correctly next time. I didn’t seal the hives as per the instructions to get the best efficacy.

Next steps:

  1. Freeze and reuse the frames (getting rid of the dark comb frames)
  2. Apply MAQS strips to the other hives when it gets to 10C and 6 frames of bees (I’m worried about the other colonies now)
  3. Insulate the roofs and get solid crown boards to reduce drafts in winter
  4. Perhaps insulate the walls further for the hives that are more exposed

BBKA News: Is Beekeeping The Perfect Hobby?

BBKA News: Is Beekeeping The Perfect Hobby?

This article was first published in the newsletter of The British Beekeepers’ Association (No. 222 – February 2015).

In my twenties I thought a hobby involved spending money I didn’t have, embarrassing myself and waking up with a hangover.  I called it ‘socialising’. As I entered my forties it was obvious I needed a different sort of hobby; one that didn’t raise an eyebrow from the doctor or leave me eating leftover curry for breakfast.

I don’t know where the beekeeping idea first came from but I was immediately attracted to it and three years on, it’s safe to say it ticks all the boxes.

As I watch my middle aged mates squeeze into their lycra outfits to go running, spend far too much money supporting their football team or get injured playing golf (yes it’s true!), I bask in knowing I’ve found the perfect hobby. Obviously I don’t tell them, but seeing as you already know, here’s a reminder why Beekeeping Is The Perfect Hobby.

People think we’re brave

For many, beekeeping is the stuff of nightmares.  They can’t believe we seek out something that’s essentially a weekly Bush Tucker Trial. They think of us as brave masters of our hives; the Bear-Gryls of the allotments.

The truth is obviously somewhat different.

For me, well, let’s just say beekeeping challenges my fears and is more akin to a white water rafting experience.  With the roar of 50,000 bees at close proximity, insects inspecting me and trying to find a good spot for a hot stinger, my heartbeat doubles and I sometimes come home a quivering wreck (I have a particularly aggressive hive at present that I will requeen in the spring).

But while it’s obvious to me and my wife that I’m far from brave, there’s no way I’m telling my motor-biking mate Mark that I’ve spent good money on two layers of impenetrable material to protect me from my hobby.

Me and an aspiring beekeeper
Me and an aspiring beekeeper

We make something wonderful

We produce one of the most delicious, indulgent products in the world. No wonder some varieties are sold for up to £70/lb. On toast, on porridge, dribbled or guzzled. Honey is the Ferrari of foods.

And of course a by-product of this is that we can actually sell our honey. Admittedly this may be some way down the line once you consider the cost of hives, protective gear and numerous accessories – but eventually, we can be in profit – unlike my friends who spend several hundred pounds a year on a Man U season ticket.

Environmental smugness

I’ve always been a bit of a recycling hard nut and enjoy doing my bit for this planet of ours. To find a hobby which makes me happy and makes the world a better place is a result!

When I find myself go-karting on yet another stag-do, I console myself with the fact I’m a beekeeper.

We get to be our own boss

In my dreams, I’d like to run my own multi-million global conglomerate. So far I remain a small employee in a very big company but at my apiary, I am boss, officially in charge of thousands of little workers.

And I don’t mean that flippantly. Here my decisions actually matter. If I don’t feed the bees at the right time, they could die and that’s genuinely upsetting. If I protect the hives from varroa, then I’m more likely to have a high yield and I’m very pleased about that.  The bees need the beekeeper.

So far, I’ve been a caring boss (if somewhat incompetent) but at least I know I won’t embarrass myself at the Christmas party.

People are interested in beekeeping

Someone once said, “hobbies of any kind are boring except to people who have the same hobby” and I can relate to that. I tune out when my friend Russell talks footie scores or my wife updates me on Jennifer Anniston’s engagement (she considers reading Grazia a hobby).

Beekeeping, however, is a hobby that people do want to talk about. Even the blokes down the pub want to get involved in a chat.  Everyone has so many questions (some of which I can actually answer). ‘How many bees are in a hive?’ (50,000), ‘How many types of bee are there?’ (lots), ‘Do you get scared?’ (I give an ambiguous response).

We get a cool outfit

There’re a few hobbies that demand a certain look from their followers. Golf for example. Now I quite like the idea of wearing loud, checked trousers (I also like the idea of a bone through my nose) but my wife insists I couldn’t pull it off.

The beekeeping suit, however, makes us look like we mean business. It makes us look like we’re entering some futuristic alien convention. And it’s surprisingly forgiving … not like those skin-tight shorts some of my friends wear to ride their bikes.

It’s better than a week in the Maldives

Yes I’m sure the Maldives are rather nice, but nothing beats being elbow deep in bees to make you forget your week at work or the list of ‘to dos’ waiting for you at home. It is the ultimate distraction, and it’s often found in a lovely countryside location (or at least a bushy bit of the city). It’s also a lot more convenient and cheaper than the Maldives, though I must admit, you’re less likely to get a tan or a cocktail when you’re beekeeping.

Other beekeepers are rather nice

We don’t have to interact too much but when I’ve needed guidance, other beekeepers have been very helpful with their varied advice. I’ve found the community to be passionate, opinionated but generally lovely. There’re also a few mad characters out there and some very impressive beards, both of which I appreciate.

I write short posts about my latest beekeeping exploits on my blog, www.talkingwithbees.com, and I’d love to hear more about why you think Beekeeping Is The Perfect Hobby.

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Are You A Social Bee Or Solitary Bee?

Are You A Social Bee Or Solitary Bee?

Confession. After a day with my wife, my toddler and my four month old son, I sometimes feel an incredible urge to do a bee inspection. After dealing with Peppa Pig, a newborn crying and my wife’s ‘helpful feedback’, the sound of 50,000 buzzing bees suddenly seems like calming silence.

And I wonder how many of us are attracted to beekeeping, not simply because it gets us back to nature or because we relish the challenge of making our own honey, but because this is a hobby which is a solitary one?

Do you prefer your own company or the company of others? Do you get advice from books or phone a friend? Do you stay in and relax or attend local beekeeper association meetings (or perhaps you’re just too busy)? Do you learn about beekeeping by yourself or as part of a study group?

I’m interested if readers of this blog are more like social bees or solitary bees.

Are you a social bee or solitary bee?

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Please comment further below.

A Christmas Present From The Bees

A Christmas Present From The Bees

It’s the middle of winter – but that hasn’t stopped the bees from my aggressive hive taking an opportunity to give me a sting – their Christmas present to me!

We moved two hives to an out-apiary on Christmas day. I couldn’t find the instructions for the hive strap, and after several attempts whereby the strap ended up in knots, we decided to free style it. The first hive was moved without incident but the second one, the crown board slid 1cm and the bees were out immediately.  We donned bee suits and carried on. It was only when I was removing tape from the entrance that a couple of bees stung me through bee suit plus trousers.

I will use oxalic acid tomorrow and a couple of weeks ago I replaced the entrance narrower but with the entrance at the top so that dead bees don’t block the entrance. I fed the bees 20Kg/hive In September/October so I hope this will get them through the Winter. The hives seemed heavy enough and the colonies are all alive and well at present.

Update 27/12/2014: I trickled oxalic acid into all 4 hives. All hives had bees and plenty of stores.

Wondering what to do with the bees in December and January? Read the Ultimate Beekeeping Calendar.

Hive Ventilation & Configuration

Hive Ventilation & Configuration

At the start of Autumn, the disagreements start about how warm to make the house.  We compromise at 19.5C which means I’m wandering around in shorts whilst Heidi wears 3 layers of clothes. She sometimes pulls up her hoody but I think that’s just her trying to make a point.  When the mother-in-law is down, she’s “freezing” (I think she has been scarred by Scottish winters), it’s 2 against 1, the thermostat goes up, the problem is exacerbated and I have to protest by wandering around naked.  My protest does not go unnoticed (my daughter says “daddy pants on”) but it is ignored.

So whilst there is some disagreement in our local eco-system there is also disagreement between beekeepers when it comes to hive ventilation.

Preparing Bee Colony For Winter

Before we talk about hive ventilation, there are a number of elements that most beekeeping literature seems to agree on when preparing a hive to successfully over-winter:

  1. A strong colony
  2. Queen-right
  3. Disease free
  4. 20Kg of stores (read: feeding bees for more information)
  5. Low varroa count
  6. Insulation in the roof

My bees are in 14x12s with a super below.

Hive Ventilation

The reason the colony needs good ventilation is to make sure that condensation is not dripping on the bees during the cold, winter months.

There seems to be two schools of thought on hive ventilation and how to configure your hive between autumn and spring. In 2014 in separate issues of the BBKA magazine there were articles by beekeepers advocating both methods. These are described below.

Note: if you have solid floors then top ventilation is required.

Insulation

In all cases insulation in the roof is deemed a positive, though some beekeepers say it is unnecessary. The rationale for roof insulation is that with no insulation the warm moist air which rises will condense on the cold roof or crown board and drip on to the bees.  Roof insulation reduces this process.

I say insulate the roof (and the walls if you can).

Option A: Top & Bottom Ventilation

Configuration:

  • Open mesh floor (allows the air in)
  • Holes open in the crown board (allow air to flow through)
  • Insulated roof (means the warm air rising does not condense and drip down due to a cold roof)
  • Side vents in the roof (allows the warm, moist air out)

Argument for: A chimney effect allows warm moist air to rise and escape.

Arguments against: Some/quite a lot of beekeepers say that this chills the bees too much and works against the nature of bees who try to propolise top vents.

Based on my experience I would advise against this chimney effect, the bees need to be cosy in winter. Go for bottom ventilation only.

Option B: Bottom Ventilation Only

Configuration:

  • Open mesh floor
  • Solid crown board
  • Insulated roof

Argument for:

  1. This is more similar to how wild bees manage condensation
  2. This method establishes a convection current, warm air rises in the middle and then falls at the sides, when it reaches the bottom some of the moist air is exchanged for dryer air

Argument against: I couldn’t find arguments against.

National Bee Unit (NBU) Advice On Hive Ventilation

The NBU does not go into much detail but does say the following on hive ventilation: “Damp rather than cold kills bees so check hives, especially roofs, to ensure rain is shed away. It is best to ensure that your hives are off the ground on suitable stands. If your apiary site is not vulnerable to windy conditions, and you are using open mesh floors, they can be left with the floor inserts out. If not, or your hives are on solid floors, then you can lift the crown board on two-millimetre laths. Used matchsticks are excellent for this purpose.”

They have also produced a guide on “Preparing your hives for winter” – this link opens the PDF and is worth a read.

Conclusions

  1. Some ventilation is required but not too much
  2. Open mesh floor is enough
  3. I think open mesh floor with top ventilation is too much
  4. If you have solid floors then top ventilation is required

I welcome your thoughts on the above article.

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Postscript: I had a disastrous Winter 2014 (see My Colony Losses). In Autumn 2015, I added roof insulation plus a Bee Cosy. I kept the Open Mesh Floor. Read Top Tips For Preparing To Winter Bees.

Bristol Honey – 2014 Harvest

Bristol Honey – 2014 Harvest

Dad and I have just extracted the Bristol 2014 honey harvest from the Redland allotments. This honey is now available in the Wild Oats health food shop (has best before date of 12 Sep 2016 if you want to make sure it came from the September honey harvest).

Darren had another good beekeeping year. He has not had to use any chemicals to kill varroa and he has not fed his bees at any point. This is as close to natural beekeeping as it gets! He also produces very fat frames of honey (see photo below).

The honey we produce is raw honey. I.e. not heat treated and only roughly filtered, keeping all the nutrients and not destroying the naturally-occuring enzymes.

The taste is quite different to last year. I would describe it as having a buttery aroma and initial taste with a minty after-taste. It has a light, golden colour. Enjoy!

Fat Beehive Frames
Fat Beehive Frames

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  • More info on Darren, this honey and where to find it: Bristol Honey

Roger’s 15 Minute Meals

Roger’s 15 Minute Meals

Greedy bees. I take an early harvest (4 August), I leave them all their uncapped stores and let them clean up the cappings to see them though the winter and it turns out they’ve gobbled the lot by early September!

Perhaps there’s not much forage around, maybe the colonies are still getting established or maybe they are just like their keeper – greedy!

Time for me to get on my apron and get in the kitchen. The last time I fed the bees my sugar syrup using 2L bottles and an English feeder, I had to make many trips and had bees flying everywhere and getting into my mixture (bottles take a while to pour and English feeders are small).  It was like the great British Shake Off and it took me hours.

This time I was determined to deliver a more efficient and civilised culinary delight.

Step 1: Mix sugar and water in 30lb honey buckets

Honey Buckets With Sugar Syrup
Honey Buckets With Sugar Syrup

I used warmed water to speed up dissolving – but I’m sure cold water would do the job. I’m mixing 5Kg of sugar with 3L of water to avoid overloading. Read Feeding Bees for more information on this process.

Step 2: Use Jumbo Rapid Feeders

… and transport this and syrup in garden cart. Place these feeders above the brood box with a queen excluder below the feeder. Crown boards should be removed.

Jumbo Feeder
Jumbo Feeder

Jumbo feeders are great:

  • Less than £25 – relatively cheaper than similarly sized alternatives
  • Covers whole surface of hive – so bees can’t fly at you or get into the syrup
  • Holds 16L (3.5 gallons) – so you could probably feed the bees in one go

And that’s it. “Proper Pukka”!

The bees have taken at least 10Kg of sugar in the last few days.

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BBKA Basic Assessment – “You Look Nervous”

BBKA Basic Assessment

“You Look Nervous”

I took the British Beekeepers Association (BBKA) Basic Assessment in July.  It was tougher than I had presumed.  I wish I had been available to attend the preparation session the weekend before.

Despite some last minute revision the night before, the assessment didn’t start well.

I assumed, wrongly, that there would be a beekeeping suit and gloves for me at the apiary.  The assessor handed me a very thin, half-suit, and some nitrile, surgical gloves.  He commented “you look nervous”. Too right.  I was wearing a very thin, half-suit, some nitrile, surgical gloves and I was about to inspect some bees!  My recent experiences of bees was of the aggressive kind and I had only used leather gloves to-date and I preferred a full suit.  I gave half-suits to my guest beekeepers!

A Disease Inspection Assessment

I was happy to be able to spot eggs and tell the difference between a drone and a worker bee so I was a bit stunned when he announced we were going to do a “disease inspection” as part of the assessment.  Hmmmm.  Not my strong point!  In fact, a very, very weak point as I had no experience of disease and I learn through experience.  I’m not advocating learning through experience as it has it’s downfalls, often ending up with the loss of a colony, and I took his point that I needed to know what these diseases looked like in advance of them occurring.

I struggled through the assessment.  I noted the brood was a bit ragged with holes and suggested a foul brood. He pointed out the hive would be in quarantine if it had a foul brood.  I spotted some chalk brood – phew. I was shakey on the causes and differences  between American and European Foul Brood.  I’m not going to embarrass myself further, but it highlighted massive gaps in my inherent knowledge.

I’m not sure if this was the purpose, but I learnt quite a lot during the assessment and have since read more on diseases and committed images and symptoms to memory.

I then spent 15 minutes quizzing him on beekeeping (when to remove supers, varroa treatments, etc.) but was aware that he had someone else to assess after me.  He repeated that I had been nervous with the bees.  OK – I got it the first time.  If I did my assessment today he’d find an even more twitchy beekeeper due to my subsequent experience with Aggressive Bees.

Beekeeping Royalty?

As we were finishing, an older gentleman popped his head round the corner and said “he’s ready, should he come in?”.  I was a bit confused.  Who was this person who waited in the car? Was it royalty?  Lord Berkeley, perhaps? A few minutes later an eight year-old (yes eight, not eighty), fully-kitted beekeeper popped his head round the corner.  He didn’t look at all nervous. If not bee royalty, he is already probably already more of a beeman than me!

Did I Pass?

It took about 5 weeks to get the result ……….. I passed. Phew.

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From 2,000 to 0 Varroa In 8 Months

From 2,000 to 0 Varroa In 8 Months

Background

I thought it worth posting the timeline that reduced the varroa to zero and put out a positive message that beekeepers can significantly reduce high varroa levels.

  • Hive Two went from counts of 2,000 varroa in December 2013 to zero varroa by the end of July 2014
  • My interventions: Open Mesh Floor (all year), Apiguard (Aug/Sep), Oxalic acid (Dec), drone culling (May)
  • Bee interventions: Swarming (May) and a Supercedure (July)
  • Lessons Learnt: (1) I’m not sure of accuracy of the varroa estimates; (2) be proactive and drone culling seems to be especially effective; (3) don’t worry too much if you have high varroa, because you can do something about it

The Timeline, Varroa Counts & Interventions

I use an open mesh floor and count the varroa on the board I place below.  I then use the varroa calculator provided by the National Bee Unit to estimate numbers of mites in the colony.

  • 24th August 2013 – Estimated number of varroa: 290
  • 24th August 2013 – Added first dose of Apiguard
  • 7th September 2013 – Added second dose of Apiguard
  • 18th September 2013 – Discovered that Hive One had died of starvation, so removed Apiguard and fed this hive (Hive Two). Hence, colony had 25 days of Apiguard treatment – 3 days short of the ideal
  • 8th December 2013: Estimated number of varroa: 2,000
  • 21st December 2013: Estimated number of varroa: 1,700 (I did this as I could not believe the first count)
  • 21st December 2013: Trickled oxalic acid
  • 19th January 2014: Estimated number of varroa: 980 (i.e. 40% reduction; it was a mild winter so there would have been a fair amount of capped brood containing varroa)
  • 15th March 2014: Estimated number of varroa: 17-140 (strange result as I had not applied any further treatment)
  • 3rd May 2014: Culled drone comb (I believe this was a key intervention)
  • 18th May 2014: Hive swarmed
  • 24th May 2014: Estimated number of varroa: 1
  • 14th June 2014: First time I saw eggs after the swarm (hence mated Queen again)
  • 6th July 2014: Witnessed a Queen hatching out – confident it was supercedure
  • 20th July 2014: Saw eggs – so laying Queen again
  • 26th July:  2014: Estimated number of varroa: 0
  • August 2014: Decided not to use Apiguard due to zero varroa

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