Rival techniques for rearing queen bees generally require grafting the honeybee larvae by hand.

This fiddly approach would frequently result in the damaging of the egg or larva that was being grafted thus halting the development into a queen bee.

As the first queen bee to hatch will kill rival hatchlings, the eggs are covered with a small plastic cage.

This allows a beekeeper to return to the hive to find a large number of newly hatched queen bees.

[1] In modern times, the Jenter kit is in use by Western European and North American apiarists.