torsdag 8. mai 2014

Deling ved hjelp av Taranovmetoden

How to prevent swarming with a Taranov board , av HoneyBeeSuite

The Taranov board is an ingenious system used to separate bees that are going to swarm from bees that will stay in the parent hive. Once separated, the swarming bees and old queen can be placed in a new hive while the old colony is left to raise a new queen.
The system was invented in 1947 by G. F. Taranov, a Russian beekeeper who recognized that swarms are composed primarily of very young nurse bees that haven’t yet secreted brood food or wax. All their energy is conserved for the task of starting a new colony from scratch. These young nurses have never taken orientation flights either, so they don’t know their way around the outside world. Taranov used this inexperience to separate the swarmers from the non-swarmers.
I don’t have a picture of a Taranov board so this description will test my writing skills and your patience, so bear with me here.
Although there are different ways of building a Taranov board, it is basically a ramp that slopes from the ground in front of the hive up to the hive entrance. Because hives vary in their distance from the ground, a Taranov board varies in length, but the slope is about 45 degrees. But here is the important point: the ramp does not meet with the hive entrance but falls short about 4 inches (10 cm).
The high side of the ramp is supported by two legs and the low side is supported by the ground. You build your ramp such that the high side is exactly the height and width of the entrance, then you pull it away from the entrance by four inches. The underside of the ramp is an empty space except for a piece of wood, burlap, or carpet affixed 2 to 3 inches (5-8 cm) below the top edge of the board—more on that later.
For now, look at this ramp from the point of view of the bee. You are foraging on white clover in the lawn. You are tired and have a heavy load. You decide you can walk up the ramp and get home easily. You walk up the ramp. Ugh! Steep! When you get to the top of the ramp you stop in amazement and look down into the crevasse in front of you. “Some idiot,” you say in bee, “forgot to finish the darn ramp!” Being a bee, however, you just fly over the four-inch opening and you’re home. Annoyed, perhaps, but home.
Okay, as a human, you now have a picture of what the ramp looks like. Now, here’s how to use it.
The Taranov method is more commonly used in Europe than in the United States, but many beekeepers find it to be a reliable and easy way to split a hive and prevent a swarm. It can be used with many types of hives, including Langstroths, top-bars, and Warrés.
Note: The original Taranov board was built with two boards that were hinged at one end. One board was placed flat on the ground and the other was raised to form the ramp. Two posts held it open like a lean-to. This original system works fine if all your hives are an equal distance above ground, but a single board works better for variable heights.
Note #2: Photos now available at The Great Divide: a Taranov split.
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