If black bees, hybrid bees, or, in fact any bees that are to be used in queen-rearing have undesirable drones among them they can be easily caught and destroyed. The most effective way of doing this is when the bees are put to work building queen-cells. My way of doing it is as follows: At the time the hive for cell-building is prepared and is ready to place over the bees as given on page 23, a metal division-board is put on the box and then the hive containing the prepared strips, combs, etc., is quickly placed on the metal. Nearly all the worker bees at once go up into the box above, leaving the drones below.

In placing the bees on the stand it is not necessary to use smoke of any kind. First, place a bottom-board in position and quietly raise the box containing the bees, letting the rear end strike the bottom-board in such a way that the combs will not be disturbed and gradually lowering the hive so as not to crush any bees.

The box of drones may be so placed against the front end of the bottom-board that all the young bees, if any are left in the box, may run out, leaving the drones below the metal to perish.

Just such a frame as is used for the wire screen cover may be used to nail the metal to, as the entire top of the box should be covered in order to catch all the drones.

How to catch and destroy drones in full colonies will be explained under the head of “Drone and Queen-traps.”