Escape boards or clearer boards are primarily used to empty the super of bees when harvesting honey. The bee escape acts as a one way door for the bees to leave the super but not come back in. They are placed in or over the entrance to the super.
Once the escape board is in place it should be left for a period of time. Some beekeepers prefer to leave it over night in an attempt to completely empty the super of bees, others prefer just to leave it for an hour and remove the remaining bees with a brush or blower.
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