bcdfdaf4__Best_Bee_Hive____Bee_Thinking__LANGSTROTH_HIVE
[0] Maintenance [TOP BAR HIVE] The most frequent maintenance and monitoring, but no heavy lifting is involved. [WARRE HIVE] The least maintenance. Boxes added to the bottom in the spring. Harvest in the fall. [LANGSTROTH HIVE] 
Relatively little maintenance. Boxes can be added early in anticipation of colony growth or a strong nectar flow.
The Best Bee Hive? | Bee Thinking
LANGSTROTH HIVE