Upper entrances. Increasing efficiency of nectar delivery to the hive means more honey stored. George Imirie developed a shim to add entrances between boxes. This is an upgraded version and the idea came to me from a friend. An advantage over Imirie’s design is the space between boxes is reduced to 3/8″ thereby reducing burr comb. I modified the measurements and added reducers.

Additional benefits include:

-They allow upper access and reduce travel across the brood nest possibly decreasing brood nest congestion and swarming.                                                                                      -They add ventilation.
-They cut down traffic across the brood to the honey supers allowing better access thus some think an increase in honey stores.
-If doing comb honey they cut down staining
– And if using an excluder it may help encourage storing in the supers.

Cost is less than a buck each.

Read more about my upper entrances here: Goals in Beekeeping and Upper Entrance