Wednesday, 23 February 2011

Part 5 - Adding Comb Guides



(Click here for Part 1 - Getting Started)


Whilst the flat roof of your hive, provided by a set of top bars, is all the bees need. However, without some kind of starter guide the bees will build their comb in whatever direction they want. Whilst this is fine for them it will produce a nightmare for you if their combs don't follow your top bars; it will make it near impossible for you to remove bars and carry out an inspection. It is common practice therefore to add starting guides to try and encourage the bees to build along you top bars. There are several methods you can use. Some folk swear by one method whilst others think others are best. My own experience suggests that they are all about as good or bad as each other so you can choose the one you find easies to make or try a variety and see for yourself.
The various methods involve using either physical protrusions or bees wax or and are outlined below. However, please read the Warning at the foot of the page before buying any bee's wax.

For most of these methods you will need a small supply of bees wax as bees are attracted to build comb from a bees wax starter – presumably they think another bee has started the comb and they continue down.


Sawn Kerf Top Bar 
This is probably the most commonly used and is relatively simple to make.

Basically what you need to do is saw a line about 2mm kerf (wide) and 1-2mm deep along the centre of each top bar – see Diagram. [Click on any picture to enlarge it]
You then dribble melted bees wax along this cut line which once set forms your starter line – see Diagram.

As bees are attracted to work from a bees wax starter it generally seems to work. You will need a small supply of bees wax

Waxed String Top Bar
Possibly the simplest design, this involves dipping a length of natural fiber string or twine into melted bees wax then immediately, whilst the wax is still molten, stretching the string out and holding it in position along the center of a plain top bar whilst the wax hardens and sticks to the bar – see Diagram E.
You will find that using rough-sawn rather than planed wood helps the waxed string to adhere.

The Starbucks starter 
My favourite as it's easy to make is to use a supply of the wooden coffee stirrers (like long thin lolly sticks) you get when you by a coffee at a Starbucks, Costa or other coffee outlet. Just run a line of glue along one edge and stick this to the centre of a standard top bar. If you use a proprietary wood glue you only need to rub a thin film along the stick then hold it to the top bar for around 30 seconds. Once the glue goes off it will be really strong. To get the sticks to come to near the edges of your hive you may need to overlap them as shown in Diagram F though this probably isn't really necessary.

To finish this off just rub bees wax along the protruding edge when the glue has completely dried.

Hanging bar starter
Some top bar hive beekeepers have been having success in preventing cross comb by experimenting with physical protrusions hanging down from the roof of the hive. Perhaps this replicates the lumps and bumps that you might find inside a natural tree cavity or maybe bees like to start building comb from an appendage. If you want to try this then you need to fit some shims below your top bars as in the diagram aside which is similar to the Starbucks starter method but with more substantial shims..

The shape of the shims is not important but it is suggested that they need to be around 6-8mm wide and hang down by 15-20mm. Stick these on with glue and rub bees wax along the protruding edge as you would for the Starbucks method.

Bait Hive method
This method I developed for use in bait hives - small hives set out to try and attract passing swarms. The bait hives in question had top bars to fit a horizontal hive of the dimensions we are using here, but also had to be adaptable enough to allow the any bees caught to be transferred to a smaller Warré hive with minimal disturbance. The trick employed was to screw a Warré top bar with 2 short screws to the underside of the main horizontal top bar - see diagram. This way if the bar was subsequently transferred into a horizontal hive it just went straight in. However, if it needed to go into a Warré hive I just place it on the empty Warré box, then unscrew the two screws releasing the Warré bar and then easily took away the main horizontal bar. 
By placing these bars in a horizontal hive I discovered that they made excellent starter bars. I suppose they are a cross between the Starbucks and Hanging bar methods above.

All you need to do to complete these starter bars is rub bee's wax on the underside of the Warré bar as a starter.

And finally.....
The choice of what kind of starter you make is yours. In my opinion there are no magic answers - bees will cross the bars in all types some of the time. If you really can't decide then I would suggest that you make the starters you find easiest to produce depending on your carpentry skills or materials you have to hand. Of course you could try making some of each type and experiment to see what kind works best for your bees. After all beekeeping is a learning process and we can all learn from your results!

Note: You can download models of these top bars in the Google's excellent free Sketchup 3D drawing programme. Download a free copy of Sketchup here.

WARNING about sourcing your bee's wax You need to be aware that there are risks involved when using bee's wax from an unknown source, i.e. any but your own. The wax in a hive absorbs chemicals and microbes from its environment. If the beekeeper supplying the wax used chemical treatments on his/her bees then this will present in the wax, or if the hive was diseased then it will carry microbes from the disease. Ask yourself – 'Do I really want diseased or poisoned wax in my hive?' 


Unfortunately, it has now been shown that bees wax contains traces of any pesticides used on crops or plants that the bees were foraging on. This is beyond the control of the beekeeper but will be at increased levels where the beekeeper lived near to, or moved his/her bees to take advantage of, a large monoculture crop such as oil seed rape, etc. where you can pretty much bet that systemic pesticides (the worst!) were used on the planted crop.

When starting out in beekeeping you won't have your own supply so you are best getting it from a very local beekeeper, one that you feel you can trust. You could even ask them what treatments they used on their bees and make your decision depending on the answer. I would strongly recommend that you do not buy wax or foundation (bees wax pre stamped in honeycomb shaped sheets for use in a conventional hive frame) from a large supplier or a local beekeeper acting as an agent for such a supply. This will have been sourced from around the world an who knows what nasties or foreign diseases are in it? 


Robin Morris
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