Wednesday, 4 November 2020

2020 Beekeeping year in review.





Beekeeping is always a roller coaster, and 2020 has been a ride like no other.

Let's recap the year.


The Calgary Beekeepers Association kicked off the year with a January potluck, during which Ron Miksha presented the preliminary findings of his study on honeybee competition with native pollinators.   I'll refrain from posting spoilers here.   Kudos to Ron for moving the discussion beyond ideology and speculation, to actual research.    

It was a good start, but 2020 had hardly gotten started.


On March 11, the WHO declared a pandemic, and the dominoes fell quickly after that.   

By March 20, New Zealand had announced a ban on outgoing flights, meaning no shipments of replacement bee packages to Canada.      That's a significant blow to the both the NZ beekeeping industries, as well as Prairie beekeepers who rely on NZ shipments for loss replacement.

It also means that dozens of new beekeepers eager to get their start were unable to get bees.

Instead, sales of local Nucleus hives exploded, as many rushed to make splits to meet demand.   One collective purchase imploded as their Nuc reservations were redirected to higher-paying buyers.

The Edmonton beekeepers association created a registry of Nuc sellers.   A good idea in principle, but I can't imagine any available NUCs stayed on the market long enough to make it to a registry.

Speaking of Edmonton, the city announced moratorium on Urban beekeeping registrations, citing somethingsomethingsomething about beekeepers spreading Covid.     Ironic, as beekeepers are Subject Matter Experts in social distancing.     As always with the city of Edmonton's beekeeping pilot, their reasons are unclear, and their decisions don't make sense.   

By March 24, Iotron had cancelled their hive-sterilization arrangement with Worker and Hive, needing  to free up capacity for medical equipment.      That means one less tool to remediate deadouts, and gives a leg-up to pathogens like Nosema Ceranae.

United Beekeepers of Alberta cancelled their March convention at the 11th hour, despite hoping to proceed. 

The month of March remained cold, with almost no days warm enough for bees to fly.

April also remained cold, with spring finally arriving in the second half of the month.  


Spring was slow to unfold, but when summer arrived it was everything a beekeeper could wish for.    The days were sunny and clear, and the nights provided necessary rain, ensuring nectar flow the following day.    It was no less than picture perfect.    This is a huge contrast to last  year when it rained every second day during nectar flow, cutting flight time in half.

This year, there was a bumper crop of honey.     Hopefully it will allow commercial beekeepers to recover from last year, and will offset the challenges replacing winter losses.


Both Aggie days and the Calgary Stampede were cancelled due to Covid restrictions.


The Calgary and District Beekeepers Association has ceased regular meetings, without explanation.     The bi-monthly social event "Bees and Beers" was not possible due to venue closures.     The CADBKA organized a few Zoom workshops in this time, under the repurposed banner of "Bees and Beers".    


The Covid doom and gloom was punctuated by news of  the "Murder Hornet", Vespa Mandarinia.   The two wasps found in the PNW translated into frenzy of online hysteria, as non-beekeepers fell over each other to share links.    There's a certain addiction to doom in the air.

Dr. Medhat Nasr has been warning us for a decade of about the impending arrival of the Murder Hornet's evil cousin, Vespa Velutina.    He was pretty well right, although mother nature has made a last minute substitution.

Mandarinia is certainly an emerging threat, but not one that will affect Albertans in this generation.    Personally, I think a PNW wasp invasion is slow-burn certainty:   Nature always finds a way.     But beekeepers are clever and will always find a way around.

UPDATE(Nov):  More "Murder Hornets" have been found in the Langly area.     Wow, multiple sightings, that far inland.    Sounds like they're established.     Also, looking at their native Habitats in Asia, they are cold hardy, and have a fighting chance of surviving even an Alberta winter.     


Meanwhile, I observe that beekeepers in Alberta are unknowingly losing hives to the other emerging threat, Nosema Ceranae.   It's an exercise in bikeshedding:   We fuss about the big scary bug, but ignore the silent microscopic killer.    And let's not forget the repeated findings of Small Hive Beetle in the Fraser Valley.....       It is these "smaller" threats that are the big threats.


Beekeeping vendor Worker and Hive has firmly established itself as the premier supplier for hobbyists in the Calgary region.    When they came on the scene I was initially skeptical that we needed yet *another* bee supplier in our area, but they've quickly moved right to the head of the pack.    They have great inventory, great service, great communications.       Does Robert ever sleep?


On LinkedIn I'm seeing a lot of posts by Shevelle Stevens of Edmonton's "Revival Queens".     Combined with her husband Glyn, she's a master at both beekeeping as well as online marketing.    Beekeepers tend to be good at one or the other, but rarely both.    Moreso, she communicates beekeeping in clear and concise terms while avoiding the beepocalypse or other environmental tropes that some leverage to capture interest. 

 

Swarm season in Calgary was textbook, starting June 1, and ending mid-August.   The CADBKA recovered about 20 errant colonies in this time.    It's a surprisingly low number given the heat and the huge number of beekeepers in the city.     My back-of-the-napkin estimates suggest we should have had 3 times that number of swarm calls, and I struggle to account for the discrepancy.      Possibly a lot of beekeepers are being engaged to recover swarms directly, and the calls aren't making it to official channels?    Weird.   We saw this in 2018 as well.     Yet another beekeeping puzzle!

Wasp season was off-the-charts this year.    It started at the end of nectar flow and lasted right up until the late first frost.    Hives were constantly under seige.      Despite setting out 6 traps and giving more to my neighbors, they didn't stop coming.    I must have killed over 1000 myself.    It was the talk of beekeepers, and even on the news.     Nonetheless, some parts of town were completely spared.     

The summer was abnormally long.   Usually nectar flow ends mid/late August, but I observed Melilot  in bloom even in early October.   Usually Melilot is done mid/late august.    Also, first frost, which usually arrives early September, didn't arrive until Mid October.     

This extended summer was enjoyable, but it can't mean anything good.

It was an eventful beekeeping year - But when is it not?










Saturday, 4 July 2020

Suitless beekeeping, and the factors that influence honeybee defensiveness



Disclaimer:  Beekeeping without a suit can be dangerous and should not be attempted lightly.  This information is provided for educational purposes, and the suitability of un-suit-ability needs to be determined by the reader.


It's been years since I've worn a bee suit.    They're hot and cumbersome, and those veils are hard to see through.   Instead, I've learned how to manage myself and my bees so that wearing a bee suit is unnecessary.

I did have a bee suit at one time -  It was mostly used by vistors, until the zipper broke.    Now it rests on top of the piano, where it has awaited mending for four years.    It really hasn't been missed.

Here's my journey, and what I've learned.  Suitless beekeeping is not suitable for most beekeepers, but developing a deeper understanding of what affects honeybee defensiveness will make for a better experience for both beekeeper, and their bees.

Idealistic beginnings


In my first year of beekeeping I was like many other new beekeepers:  full of delusional purism.   Among other things, I decided I didn't want to wear a bee suit or smoke my hives.  Taking this road less traveled has paid golden dividends in terms of understanding.

By not wearing a bee suit, I was making myself *directly* available to feedback from the bees.  They would quickly register their disapproval with stings, and I adjusted my behavior accordingly.

I didn't get stung much that year - About 30 times over the season.   Each sting was tracked on an excel spreadsheet, and each sting taught me what I shouldn't do.

Over time, it became clear that my stings were falling into two categories:

1)  Hand placement stings:   I picked up a box or a tool with a bee on it, crushing it with my hands, and it stung in retaliation.

2)  Bees trapped in my pantlegs:  Bees in the grass crawl up my shoes, into my pantleg, and then panic when I move and they get pinned between pant and leg.  Panic=sting.

There was a clear pattern emerging:   They didn't want to be pinched or crushed, and watching where I put my hands was paramount.    Pantlegs were also tucked into socks before approaching the hives.

The most significant takeaway was understanding that they didn't really *want* to sting me.  Stinging was a preventable reaction to my own conduct.

Teaching them how to treat you


Another significant lesson was learned early in this first season:  A fellow newbeek called me up and told me his hive was stinging everyone in and around his yard.   It was so nasty he was even unable to open or manage the hive.    Moreso, his health was suddenly failing and he was unable to keep bees any more. 

He asked if I'd take his hive, but he needed it gone that night.   I didn't want his nasty bees, but he was in a bind.   We didn't even know many beekeepers back then that could help.   Thus, I showed up at dusk to pick up his angry hive. 

When I arrived, he was preparing the hive for transport by nailing wooden supports onto the sides with a hammer.    In between hammer strikes he told me about how nasty the hive had become.  It was surreal to watch.  But my friend wasn't well, so I didn't fuss, and just took the hive home to my yard.

The hive was given two weeks to settle in before I opened it.    In keeping with my "experiment", I did so without a bee suit.     It seemed fine. 

Moreso, I was able to place my face directly upon the top of the bee covered frames, with no ill effect.     The hive had calmed right down, and I learned my other significant lesson:

Beekeeper handling plays a significant role in determining hive temperament. 

Colony "Temperament", is a measure of where it sits on the spectrum of defensiveness vs forgiveness.     It's similar to people.    And similar to people, this temperament is determined by both what's happening now, and how it's been treated before.   We can think of it as the difference between learned disposition, and situational reaction.      The second also depends on the first.

The factors that contribute to temperament


When I was president of the Beekeepers Association the City would engage me to investigate stinging-complaints.   In the capacity of  a mediator I'd visit the beekeeper being complained about, and work with them to determine what was making their bees defensive.  I'd watch how they worked their bees, I'd learn about their setting, and I'd experience their bees for myself.     Patterns emerged, and I developed a hierarchy of troubleshooting, starting with the most common:

1)  How does the beekeeper work his hive?    Gentle or hamfisted?  Are they using smoke?
2)  Ask beekeeper if hive is being nuisanced by skunks or racoons.  Look for signs.
3)  Ask beekeeper if mice in or around hives is an issue.   Look for signs.
4)  How strong/populous is the hive?  A stronger hive has more to defend, and will.
5)  Inspect hive for health and vitality,   Determine if disease is an issue.
6)  If all else is ruled out, and only then, rule in Queen genetics as a possibility.

The first and the last items are the most significant, as folks tend to rank them oppositely.   Beekeeper handling is rarely considered as a cause, with queen genetics being the go-to explanation for defensiveness.     

Consider for a moment that defensive colonies have been getting culled since at least Roman times, while at the same time bees have been bred to minimize defensiveness.    It's been a consistent effort to make bees less defensive, and has lead to contemporary honeybees having a temperament close to that of a domesticated dog.

It is my conclusion, based on experience, that beekeeper handling is the most significant determiner of hive temperament.


Situations and behaviors that will influence colony defensiveness


Aside from temperament, bees will react to the situation at hand, including our own behavior.

The season is the reason

Be aware of how the "When" affects hive disposition.

In the spring, colonies are building strength, and are less reactive.    In the summer, the abundance of forage makes them honey-drunk and forgiving.    It is during this time we allow children outside of our family near our hives.   In late summer/fall, forage has dried up and the hive is full of 60,000 workers facing layoffs.   Fall "dearth" is a hard time for honeybees, and extra caution is required. 

Additionally, hives don't like being grounded due to bad weather.     The bees have their own barometers, and will quiesce before a storm arrives.    It's not a good time to disturb them.

The final "when" is time of day.    Bees are heat hungry, and a colony is least defensive on hot days in early afternoon.   It's also the time when the most workers are out and about, working.

When moving, flow like water.

Bees use both smell and movement as a cue.     Slow down the cadence of your movement, and make it consistent, steady.  Visualize yourself as a mime, or a ballerina.    Imagine you're moving through molasses.   Don't move quickly then slowly.   Move at the same pace.   Be slo mo, and you will become invisible to them. 

Furthermore, avoid jerky hand movements directly above the hive.    Beekeepers already know that quick hand movements invite multiple bees suddenly stinging the hand.   It can also put the hive on alert. 

Less glove = greater care

Wearing gloves protects you, but also reduces coordination, and prevents you from receiving feedback from the bees.    The beekeeper becomes both blunt, and "blind".     They may think they are being gentle, but with hands protected, how would they know?     Without gloves, a beekeeper can make much finer movements, with greater coordination, and appropriate force.   

Start by saying no to crack

When the inner cover is removed, there's a point at which the propolis seal is broken, and the hive gives an audible crack.   The same applies for to each box/super, but is loudest when removing the inner cover.  Challenge yourself to see how slowly you can remove the inner cover.     Rather than a burst of force to pop that lid, use a steady application of force.  The more you slow it down, the quieter the pop.     Work to the point where you can break that seal without any audible sound.      Expect that to take at least 10 seconds, and as many as 30.

Don't be a bear

Bees aren't overly concerned with us naked primates, as we are relative newcomers to their world.     Their eternal nemesis, for bajillions of years, has been THE BEAR.    A bee knows what a bear is by instinct.   The key is to not be mistaken for a bear.   You can decrease the chances of being mistaken for a bear as follows:

- Don't wear dark colors
- Cover dark or curly hair with a light colored hat.
- Don't breathe on bees or talk to them.    CO2 reminds them of bear breath.    When you work the hive, exhale way from it. 
- If being nuisanced by a bee, don't swat at it.   This bear-like reaction just confirms her worst suspicions.  Walk away.

Smok'em if you got'em.

In my first year I didn't smoke bees, thinking adjusting my movement was enough.   But as my understanding grew, I learned that smoke serves two purposes:

1)    Smoking disables the hive's pheromone-based alarm system.    Yes, we've all heard the story that smoke simulates a forest fire, causing them to gorge on honey prior to a bug-out, resulting in a food-coma.    My own observations lead me to favor the pheremonal theory.      By smoking the hive, we disable their communication system, preventing them from raising the alarm.    Hives that are continually put on alert will eventually develop defensiveness.     A few puffs of smoke is enough to encourage a chill vibe.     More than that will have an irritating and inverse effect.

2)  Use smoke to herd them, so you don't hurt them.     In my first year I was crushing bees between boxes when I reassembled the hive.   I wasn't even aware at the time.   Furthermore, the cleanup of those crushed bees spreads disease inside the hive.    Instead, I now smoke the top of each box, just enough to annoy the bees into taking cover in the box below.    I replace the box above when the coast is clear.   

Scent of an attack

The is elementary beekeeping, but will be mentioned for completeness.     The smell of Banana is similar to the smell of bees' alarm pheremone.   Having bananas on your breath makes you a walking  beehive alarm system - one that has been activated.   

Bees also don't react well to the smell of garlic and onions because bees don't like people breathing garlic and onions on them either.


Don't crush on your bees

Vertical Crush:   Many beekeepers, when separating boxes, will pry a corner up and drop it down, then the other corner up and down, then the other corner, until the seal is broken, before finally prying the box right off.   Each pry-up,drop-down motion has the potential to crush bees, as they flow into created openings, and then are squished as it comes back down on them.    Instead, start with one corner and keep prying the box in a consistently upward direction, until the point of separation.   As you pry, support box up with the other hand to prevent it falling.   If it's too much of a challenge to hand strength, using two hive tools can help.

Also, as mentioned previously, clear the tops of frames with smoke to avoid crushing between boxes.

Horizontal Crush:    When moving frames or top bars together, it's easy to squish bees that get caught in the way.   To avoid squishing the bees, move the hive component into place in an oscillating motion, which annoys the bees our of the way but gives them time to move.     

The diagonal twist:   When I started out, I met a Polish beekeeper called Pete Butkiewicz who taught me this trick.   Instead of placing woodenware directly on the box below, he placed it at a rotational offset.    He'd then rotate to align the boxes, which would brush the bees to the side, instead of crushing them along the edges.    I've never heard of any other beekeeper doing this other than Pete.    Since then, I've met a few beekeepers to who do this, but determined they learned it from someone who learned it from me.   Always seems to trace back to Pete.

Read the signs

A honeybee dies when she stings you.    She would prefer not to, but will.

Half the time, the decision to sting is an instantaneous reaction.   The other half of the time, there is a gradual escalation.   It will start with a bee nuisancing your head.      If you don't get that message, she will butt you in the head.   (No, that wasn't a navigational error, it was a warning).   If you're still not getting the memo, she will sting.    As soon as the nuisancing starts, walk away.    Walk as far as it takes to shake your harasser.     Give it a minute for the excitement to die down, and then return to the hive.   Reassess hive mood, and consider if it was something you did, or if the hive is defensive.   If the harassment starts before you even get near the hive, the hive is defensive, and it's time to troubleshoot why.

Also, a colony's mood can be read by sound.     An increase in volume and frequency of a hives buzz indicates an increase in its state of alarm.     Listen, and notice the change in sound when the hive is alarmed.      The difference is easy to hear when you pop the inner cover.


The current state

At this point, when approaching someone else's hive, I'm able to quickly intuit the temperament, and can determine at what point the hive is starting to feel threatened by me, and back off accordingly.  Like approaching a stranger's dog, I approach with caution and read the reaction.

In terms of my own hives, they are very gentle, and I attribute that largely to how I handle them.    I've had all sorts of genetics and strains over the years, whether purchased from different sources, whether open-mated splits, or whether they were from swarms of unknowable origin.    Regardless, the temperament has always been the same:  chill.   I can do a full inspection (tear down) of a hive without a single sting.   When I do get stung it's almost always the result of bad hand placement.

Working without a bee suit is not for everyone, and really probably not a great idea.   But by understanding the principles above, you will become a gentler beekeeper, which is good for you, good for the bees, and good for beekeeping.

Treat your bees well, and they will treat you well.






Update, July 2026:   I recently had one of my hives go completely berzerk.   It was located in someone else's yard in a residential neighborhood.    A week ago it started stinging homeowner in their own yard...  And I couldn't even work it without a veil.     As soon as I cracked the top, I'd have 50 bees trying to sting me through my hoodie.      This hive was too hot to requeen or troubleshoot.     After relocating, I found a significant amount of mouse droppings under the hive, which strongly suggests the reason for defensiveness was pest nuisancing.


Tuesday, 5 June 2018

Flow hives economics simulator


It's generally understood flow hives lower the barrier to entry, but prevent economy of scale.

But where, exactly, is the tipping point?

Let's create a simulation in excel to answer that question


One hive (Two flow supers or 3 regular super supers):


 
Two hives (4 flow supers or 6 regular supers):




Three hives (4 flow supers or 6 regular supers):




 8 Hives (16 flow supers or 24 regular supers):
 









Conclusion:   The flow hive is uneconomical if keeping more than one hive for more than one year.
 
I encourage you to enter your own numbers and play around.

My flow hive economics simulator can be downloaded here.

 

Thursday, 24 May 2018

The Calgary Top Bar Hive:  A Top Bar Hive for Northern Climates
Metropropolis, Calgary Beekeepers Association, Feb 2014


The Calgary Top Bar Hive is a variation of the traditional Kenyan top bar hive, built  for the requirements of a Northern climate. It is made with extra-thick wood for better insulation, and has extra capacity to allow population growth and the storage of honey surplus.   The extra size will also help reduce swarming, and the accompanying explanations to neighbors.




The CTBH features an IPM screened bottom, and is partitionable for the purpose of running a two-queen colony, queen rearing, or hiving a swarm.   It is also interoperable with Langstroth equipment, and can be expanded using Langstroth honey supers.


This hive is an indirect result of my  analysis on using Top Bar hives in Calgary.  This hive improves upon current offerings by being specifically designed for a Northern climate, while still acknowledging the simplicity of design fundamental to the original Kenyan Top Bar Hive.

Preface:  Why to choose this hive, why not to, and other notes.



If I was space limited, and I had room for only a single beehive, this is the single one I’d have.


This hive offers a great deal of functionality, with a very small footprint.    It can be partitioned to hold two colonies, or to temporarily hive a swarm. With the Langstroth expansion, it can provide up to 100 lbs of extracted honey, in addition to any cut comb harvested from the top bars.


The supers and quilts can be stored on the hive in-place.   This allows the flexibility of expandability while avoiding the nuisance of equipment sprawl.


The increased space allows the colony sufficient space to grow, while still providing space to store honey during the short and intense nectar flows characteristic of Alberta.


This is a very stealthy hive.  It has a very low height, and doesn’t look like a hive.  The narrow base allows the hive to sit quite close to the ground, while still enabling access to the debris board.    The combination of horizontal layout and upward expandability mean that the hive can have a great deal of internal volume without growing too tall.


These instructions are intended to make it easy for anyone with basic equipment to build such a hive.  There is a great satisfaction and pride in building your own hive, rather than buying it. This is consistent with the intent of the original top bar design, and very possible for *you* to do.


So why *not*  choose this hive?


This hive is not an observation hive, and doesn’t have the observation window purchasers of boutique Top Bar Hives may expect.   Those seeking a hive with windows will still want to look towards other models, such as a Golden Mean Top Bar, a Gold Star Top Bar, or a Bowness Observation Hive.


Another reason not to choose this hive is out of a belief that top bar hives are “more natural”.  This hive is no more or less natural than any other hive. “Natural” is determined by how the hive is managed, not by the type of hive.  


Like any KTBH, or other fixed hive, this hive can get heavy, and won’t be easy to move.  If you anticipate that you’d need to relocate this hive, better to consider a modular system, such as Langstroth.


Like any KTBH, this hive doesn’t scale up well – If you’re planning to have 3 or more hives, better to go with a modular system, such as Langstroth.


This document will be under constant revision and improvement as feedback is received.   Please check back often for a more current version: http://members.shaw.ca/metropropolis/


Disclaimer:        I do not necessarily advocate for the use of Top Bar hives in Calgary, but it pains me to see the challenges experienced by those using currently available versions, which may not be suited to the challenges of our local environment.   I’ve developed this hive to provide a better option for those determined to follow the road less travelled.


Table of Contents



Preface: Why to choose this hive, why not to, and other notes.

1.  The Calgary Top Bar Hive: Standard Version
2.  Equipment
3.  Materials
4.  Making the hive body
5.  Making the hive ends
6.  Assembling the Hive body
7.  Finishing the Ends.
8.  Making the Top Bars
9.  Making the Follower board and spacers
10.  Combination Entrance Feeder / Entrance Reducer.
11.  The Calgary Top Bar Hive – Langstroth Expansion. 39
12.  Equipment and Materials: 39
13.  Converting Top bars to Open Top Bars: 40
14.  Quilts
15.  Lid
16.  Appendix I: Converting Langstroth drawn comb for the CTBH
17.  Appendix II: Management tips
18.  Appendix III: Revision History


The Calgary Top Bar Hive:    Standard Version



Equipment:



Table saw Dado blade recommended
Drill with 1/16 bit, 3/4” bit, and Robertson bit
3” hole saw For optional entrance feeder.


Materials:



2 pcs 2 x 12 (8ft)
$20 @ Rona / Home Depot
13 pcs 2 x 2 (8 ft)
$25 @ Rona / Home Depot
1 pcs 1x2 (8 ft)
$3 @ Rona / Home Depot
1 pcs 1x6 (8ft)
$4 @ Rona / Home Depot
#8 Hardware cloth (#8 means 1/8” Mesh)
$13 @ Rona / Home Depot
4’ x 2’ square of ¾ plywood
$10 @ Rona / Home Depot
Box of 3” #8 Deck Screws
$10 @ Rona / Home Depot
Two hinges, two hook-and-eyebolt latches
$10 @ Rona / Home Depot
120 popsicle sticks
$5 @ Dollar Store
4 Cinderblocks
---Scavenge
20" of 2x4 scrap
--- Scavenge.
36” of 2x6 scrap
--- Scavenge.
9 wine corks.
--- Scavenge
1 Mason-style spaghetti jar (Empty)
---Scavenge

===

~$100




Making the hive body



  1. Curing your wood:     If time allows, clamp your 12” planks together and let cure for a week or two.  Wood must be off of concrete floor. This will decrease any chance of warping or bowing later.


IMG-20130413-00552
  1. Crosscutting sides and ends:   Cut each of the two 2x12s into the following lengths:  49 3/4” and 23”. The remaining 23” piece is waste.


IMG-20130421-00564
c)   Angling cutting the sides  On your table saw, angle the saw blade to 30 degrees, as shown.    Take your two 49 ¾” pieces and angle the two edges. Cut off as little as possible to achieve the angle.   The resulting width of each piece should be 10 5/8” each. Ensure that the edges are cut parallel to each other, not trapezoidal.


IMG-20130316-00427

Making the hive ends



  1.  Mark one end piece as per the picture below, and then cut it out.


Simensions are 20” along the top, 9 ½” along the bottom, and 10 5/8”  along the diagonal. Angles at the top are 60 degrees. Bottom angles are 120 degrees.


Cut it out on the table saw as follows:


After marking and cutting the first one, us it to trace out the second, so the two are the same.     Cut the second out as well.


b)  Make Pilot holes on ends:


Drill 3 1/16” pilot holes along the side 3/4” from the edge.    Start 3” deck screws.


Assembling the Hive body



  1.  Affix both ends to sides as follows.  Verify that top width is 20” and the bottom width is 9 ½ “.
IMG-20130421-00585

Combination Screened Bottom, Landing Boards, and Debris Board:

a) Affix screened bottom:   Cut #8 HW cloth into a piece 8 ½” ”x 47” , and staple to bottom.   There should be a gap 1 3/8” left between the HW cloth and both ends.  You may need to cut two pieces to make up the entire length. I overlapped the two pieces slightly, and stapled a small 3rd piece over the join, to ensure bee-tightness.
IMG-20130328-00480

b) Make the landing boards:  Take two  2x4’s and cut into 9 ½”  lengths. On each cut a rabbet 2” wide and  13/16” deep. Also cut 4 pcs of 1x2 into 2” lengths.
IMG-20130421-00594  c) Assemble Landing boards:   Assemble the 9 1/2” Lengths and the end 1x2 pieces as follows.


IMG-20130421-00597

d) Affix Landing Boards:  Pilot and Screw the landing boards to the bottom of the hive at both ens:


IMG-20130328-00481

e) From the inside of the hive, staple the bottom screen to the landing boards at either end:


IMG-20130421-00601

f) Rim of Debris tray:  Crosscut 2x2 into 2 pcs of 45 ¾” inches, and 2 pcs of 6 3/8” inches.  Assemble.


Note that this picture slightly misrepresents the way the pieces fit together –  The end pieces go *between* the long pieces, not on the outside as this picture suggests.


g) Cut a piece of ½” or ¾” inch ply into a square  45 ¾” x 9 3/8” . Affix to the 2x2 frame.


h) Dry fit into bottom:


i) Affix with hinges on one side, and latches on the other.  Space ~12” from end of debris board.


j)  Removable debris board (optional):  For a removable debris tray cut a 6 ½” X 42 ½” piece of coroplast.
Cut  1” diagonal off the the corners to make it easier to remove from the debris tray.



k) Hive Feet:  Cut a piece of 2x6 into two 15 1/2” Lengths.     15 ½” is the width of a cinderblock, upon which the hive will rest.   Pilot and Screw to bottom of landing board as follows:


IMG-20130424-00609
Finishing the Ends.:


  1. Top bar ends:   Crosscut a 2x2 into 2 20” lengths.    Screw each to the top of both ends.


  1. Entrances:  Mark a horizontal line 2” from the top of the end.  Mark the center spot, which is roughly 9” from either side.    Make marks 2 ½” and 5” on either side of the center mark. Drill 5 upper entrances using a ¾ inch bit.    Do the same on both ends, and on one of the ends, close the holes with 5 corks.


  1. Entrance reducers.     Cut two lengths of  1x2”, 6 ¼” long, and 5 ¾” long.   One is an entrance reducer, and other is an entrance closer, which will be used to close the second entrance until it is needed.    Use a sander or table saw to remove 1/8” of thickness, and add screws to make them easier to get in and out.


Save the reducer for use later.


You’ve now finished the hive body!


Next part is the top bars.

Making the Top Bars



  1. Ripping:  Set the  fence 1 3/8” from blade.  Rip two sides of 10 2x2s down so they become  1 3/8” x 1 3/8” .
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  1.  Crosscutting:   Crosscut each of  the 10 2x2s into 4 pcs of 20”each.   You should get 40 such pieces.
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  1. Cut a groove for Comb guides:   Set the fence 5/8” from the table saw blade, and ¼” high.  Cut a groove up the middle of the 40 top bars. I use a thin “thin-kerf” blade, which is perfectly sized for the popsicle sticks that will go in later, but a regular blade will do.  


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  1. Top Bar Guides:   Cut a 1 ¾” wide and ¼” deep rabbet on each end of the top bars.     After your first one, test fit on your hive. Top bars should fit on top of sides with only the slightest amount of wiggle.    Adjust width as necessary. Do for all 40 top bars. When done, set aside three for making follower boards and spacers later.


  1. Insert Comb Guides:  Grab your remaining 37 top bars, and insert 3 popsicle sticks into the kerf of each one.  It’s easier if you do the center popsicle stick first. You may need a dab of white glue to hold them in place.     


Making the Follower board and spacers



  1. Follower Board:  Cut two pieces of  ¾” plywood in to a trapezoid with the following dimensions:   
16 3/8” along the top, 60 degree corners at the top, and 6 3/8” along the bottom.  Height will be 9”


  1. Join plywood and one of the Top Bars:  Place one of your top bars kerf-side up on a table.   Pilot, then drill a couple of screws to initially hold the trapezoid to the bar.  Note location and angling of the screws in picture.
c) Next, place the follower board in the hive, and pilot/screw two holes to further affix the trapezoid to the bar.    It should be solid now. I only use two screws on follower boards, so I can easily pick them out from the converted Langstroth frames (more on that later).




  1. Size it in the hive.  You may need to do some sanding to get a good fit.     Small gaps along sides or bottom are ok, provided they are bee-tight (< ¼”)
  2. Repeat this, to create your second follower board
  3. Spacers:     Sometimes expansion and contraction can leave too much gap in the roof.  It is handy to have spacers on hand. To make spacers, rip your remaining top bar in two.




  1. Put it together:   Place 34 of your top bars, as well as your follower boards into the hive.    They should fit loosely, allowing a little play. It’s good enough if they’re bee tight.  Once they become wet, they’ll expand to form a solid roof. If you note any top bars sticking up too high, you can adjust their dado with a little sandpaper.  Finally, consider running an orbital sander over the top to neaten things up.
You will have 3 top bars left over – This is to allow you to replace bars when harvesting.    These can also be used to make “Open Top Bars” which are covered later.



Combination Entrance Feeder / Entrance Reducer.



Note:  Making the entrance feeder requires a 3” hole saw, which costs about $30.   The hole can be made with a Jigsaw, but a hole saw is a good investment for a hive-builder.


  1. Crosscut and Rip   Take your 1x6 and crosscut it into 3 equal lengths of 5 ¾”.    Take one of the pieces and rip it into three equal pieces roughly 1 ¾” each.


  1. Feeder hole:  Mark center on one of the pieces, and cut a hole using your hole saw.   Over that hole, staple a 4x4” piece of #8 Hardware cloth.


  1. Affix the back-wall and the “arms” to the base.   I use a little glue and an air nailer, but screwing or nailing is fine as well.
  1. Affix the top to the base, screen side down.   
  1.  Cut the “arms” down to a length of 1 ¾”.


  1. Use a nail to perforate the spaghetti jar lid for your feeder jar.
  1. Insert feeder into Hive  .The entrance feeder should fit nicely right into the front, and still leave a ½” gap to one side.    You may need to slightly sand down the “legs” for proper fit. Note that the feeder also serves as an entrance reducer – Allowing spring feeding without opening hive.




You are DONE!    
You now have a fully functional top bar hive that will provide sufficient space for your colony’s first year.    Should you wish to provide the colony additional space to store honey, as well as an insulated roof to improve overwintering, you may proceed on to the next section called “The Langstroth Expansion.”

The Calgary Top Bar Hive – Langstroth Expansion.



While this hive is perfectly functional as a stand-alone Top Bar Hive, it also allows for expansion to Accommodate Langstroth honey supers.     The brood box will remain in the bottom of the hive, and the bees will store honey surplus in supers up above, in extractable combs. Additionally, adding insulating “Quilts”  to the upper story will improve winter heat retention while absorbing excess moisture.
See the section on management tips for tips on making the best use of this configuration.


Equipment and Materials:



6 Langstroth Honey Supers
$60 @ Bee Supplier
27 Langstroth Frames
$50 @ Bee Supplier
2 2x2 boards
$5
Sheet of Plywood, 2’ X 5’
$10 @ Home Depot/Rona


Converting Top bars to Open Top Bars:



  1. Converting Top bars to open bars:  Take 10 unused Top bars, and modify as follows so that bees will be able to pass through to the supers above.
First, set fence to 3” away from blade, and blade a ¼” height.   Cut 4 notches – 1 on each side of each end.
Note;   Converting 5 bars is sufficient to start, as you’ll only want to add these a few at time.  See the appendix on management notes for more information on using these.
b)  Next, cut out the space between the two notches.     A Dado blade makes this easy, but it can be done with a regular blade, by starting the blade low, making a pass, and increasing the height slowly.


c)  Here is the final product:


Quilts:



A quilt is a Langstroth hive component used to regulate hive heat by providing cooling in the summer, and insulation in the winter.   This is not a new creation by any means, but is solely my interpretation of an old idea. Quilts were not uncommon on Langstroth hives 60 years ago, but have since fallen out of favor.    They are still a standard feature of Warre hives. Essentially, they are a Langstroth super with a screen stapled to the bottom. In the summer, they are left empty, and provide a buffer against the heat, and in the winter they are filled with leaves, to retain heat and absorb moisture.
The details of making a quilt are well documented in the  article “Making a Langstroth Quilt”, available at: http://members.shaw.ca/metropropolis/Making%20a%20Langstroth%20Quilt.pdf


Lid:



  1. Take two 2x2’s and cut each into lengths of 53” and 20 ¼”.
  1.  Next, take a sheet of 3/4” or ½” ply, and cut into a rectangle 53” X 23 ¼”.
  1. Assemble:   


Here is a picture of what a CTBH with the completed Langstroth Expansion looks like.   Note the row of honey supers, and then the row of quilts stored on top.
After building, the proportions seemed somewhat animal-like, and I couldn’t’ resist painting it up like a ladybug.  The possibilities in this regard are many!


NOTE:  Please do not republish or the above picture without asking first!

Appendix I:  Converting Langstroth drawn comb for the CTBH.



Many new top bar keepers find themselves unpleasantly surprised when confronted with the “crop and chop” process required to install bees from a Nuc into a Top Bar hive.    This is a bee-unfriendly practice inconsistent with the stated desires of most Top Bar keepers.
Using packages, on the other hand, requires installing bees into a bare wooden box that is unappealing to the colony, forcing them to build a wax combs before they can store honey or make brood.  Colony failure and absconding rates are high using this method.
A third alternative is to modify a Langstroth frame of drawn comb to fit into a Top Bar hive, and then populating with a package.   Drawn comb smells familiar to a newly hived package, and provides the colony a place to immediately store honey, pollen, and brood, giving it a head start.
I suggest you’d want from 4 of these to start.   If you wish, you can eventually cycle them out once the colony gets established.


a)  Create a trapezoidal jig:   Cut a piece of ¾” plywood into the following dimensions:    15 ½” along the top, 5 ¾” along the bottom, 30 degree angle on the top, and a height of 8 5/8.   
b)   Trace:  Place the jig over a brood frame of drawn comb and trace the outline in the wax with a sharp object.   
If you are unable to procure brood comb from a trustworthy source, consider using medium frames from a honey super.   All things being equal, honey frames that have not been used for brood will have less chance of transmitting disease.    The will be a bit shorter to start, of course.
c)   First cuts:  Place the frame on the table saw, and cut into the end with top bars, *only cutting halfway down the frame*.


Here’s what it looks like after cutting halfway:
  1. Assemble:  Place the frame into a Nuc or hive body and place a Top Bar on top of it, centered.   Drill pilot holes from the top bar into the frame, and then drill 3 2” nails. I use two so I can differential from follower boards at a glance.
This same method can also be used to convert Pierco green drone-frames to top bar for Drone trapping, or to convert top bars from a smaller type of top bar hive.  Just put one of the 20” top bars on top, and pilot/screw it onto the frame/bar below.
We’re not quite done yet, but here is what the converted frame now looks like:
  1. Final cuts:   Remove the frame from the Nuc, and using the table saw, finish the halfway cuts.

  1. Cut ½” of off the bottom, removing the edge of the frame and a bit of comb:
Here is your finished product.  Note that I’ve labeled the type and source of the drawn comb for later reference.




Appendix II:  Management tips.


  1. Orientation:   The hive entrance should be pointed directly south, which will minimize it’s north-side exposure.
  2. Queen excluders:  Queen excluders should not be necessary:    The queen is unlikely to go upwards through the wooden gap of the top bars, unless she is congested below.     If you still wish to use a QE, it is recommended that you use a wooden-rimmed ones with this hive. You’ll of course need 3.
  3. Partitioning:  Typically, the hive is used with only one colony, and only one end open.  If using to contain two colonies, open up the second entrance. This should be a short-term arrangement, as it could quickly lead to congestion.   The two colonies will share queen pheromone via airflow through the debris board, so they could be more easily combined if desired.
  4. Winterizing:  Assuming that you’re wintering with only one colony in the hive, partition off the North side into two separate compartments, to provide a space-buffer against the chill of the north.   The quilts go directly above the main hive body, and the honey supers go above those. Keep it in this configuration until late spring. Don’t allow the supers to be accessible at the same time as sugar feeding.   This arrangement allows the storage of woodenware in-place, to avoid clutter.
  5. Populating:  It is recommended that this hive be populated with Package bees.  Package bees typically arrive before spring nectar is available and should be given feed to get them through this period – At the very least until Dandelions are in flower, which is typically Mid May.  When initially hiving a package, reduce the bottom entrance with either the feeder or the reducer. Start with 3 of the top entrances open. Open the remaining two top entrances, and then the bottom entrance as population grows.      It’s about striking a balance between defensibility, and enough space for traffic. You decide.
  6. Using Open Top Bars:   I suggest letting the bees build out comb on half of the regular bars before inserting Open Top Bars.  The end goal is to alternate these with the closed to bars, but they should be added in stages, so they can be built out with comb.  Add Open Top Bars in sets of three, starting near the entrance, and alternating with regular top bars. Putting two Open Top Bars side by side is disrecommended, as it would violate bee-space.
  7. Feeding:  Prior to main flow, sugar feeding can be used to provide additional calories to help the bees make wax to build out their hive    Feed for the feeder jar can be made by mixing 1L of water for every KG of sugar, and heating on low heat or microwaving until dissolved.   A 4 KG bag will fill approximately 6 Mason-style spaghetti jars.
  8. Splits:  Hive could be partitioned into 2 sections in order to create a split.   If you’re going to be splitting-in-place, you’d also need to partition the bottom board to prevent flow of queen-pheromone which would prevent a partition from raising it’s own queen.  Hive can be overwintered like this, but should not be run in this configuration after spring – it should be unpartitioned and reduced to one colony, lest the colonies become crowded and swarm.

Appendix III:   Revision History



June 01 2013 Document commenced
Feb 12 2014 Beta version 1.0 released for public feedback.\
May 24 2018 Converted .doc to html and published online.