''Checkerboarding'' is a term used in
beekeeping. It describes a specific
hive management technique to prevent
swarming. The technique was discovered by Walt Wright, a long time beekeeper from
Tennessee.
Checkerboarding is a beekeeping intervention that takes advantage of the
bee colony's primary motivation, which is survival.
Survival of the existing colony takes priority over swarm preparation and swarming. Bees will not prepare for a reproductive swarm if they perceive the survival of the existing colony is jeopardized. It is hypothesized that swarm preparation starts in the late winter. The over-wintering colony consumes
honey and expands the brood volume. At this point, the bee colony apparently senses that it has enough remaining honey stores and a large enough
brood nest to risk swarm preparation. The bee colony's first activity of swarm preparation is to reduce the brood volume by creating additional stores inside the brood area. As
brood emerges, selected cells are back-filled with honey,
nectar, or
pollen. Later into the season, as space for egg laying decreases the queen will not be able to lay as many eggs. This forces the queen to diet and lose weight so she becomes fit for the swarm flight.
Apparently, at the first time this type of backfilling behavior starts is the best time to do the Checkerboarding intervention. It requires filling two
hive boxes above the broodnest each alternately with capped honey-filled
frames and empty drawn frames. Alternating empty drawn combs above the brood nest "fools" the bees into thinking they don't have enough stores yet for swarming and causes them to expand the brood nest, giving both a bigger field force and avoiding reproductive swarming.
Timing the checkerboarding intervention is very important. (Note: all these times are difference reference points that refer to the same time.) The best time for the intervention is:
★ at the time the
elm trees bloom
★ four weeks before the
maple trees bloom
★ five weeks before
redbud trees bloom
★ eight weeks before the start of the
apple tree blossom
★ nine weeks before the peak of the apple tree blossom
Sources:
★ Adapted from the
Beesource Beeforum; Thread:Experiment participants wanted; by Michael Bush posted January 17, 2006 04:06 PM; accessed March 2006
★
Walt Wright's Checkerboarding, accessed June 2006
★
Web links to all articles written by Walt Wright, accessed June 2006