A queen excluder is a beekeeping tool designed to keep the queen bee from entering certain areas of the hive. It is typically a grid or mesh that allows worker bees to pass through but prevents the larger queen from moving into sections where honey is stored. This helps beekeepers harvest honey without disturbing the queen or her brood. By using a queen excluder, beekeepers can manage their hives more effectively. It ensures that honey is collected from the supers, the upper boxes of the hive, while the queen remains in the brood chamber, where she lays eggs. This separation helps maintain a healthy hive and supports honey production.