The bottom board for the Lyson "8/9" hive system features a built in varroa screen and removable tray for monitoring mite drop. The top edge of the bottom board is reinforced with plastic and hive bodies and supers lock into place on the plastic. The bottom board includes an entrance reducer and closure combination.
Note: The 8/9 frame bottom board is not compatible with other 8 or 10 frame components. It is designed to work only with the Lyson "8/9" frame hive bodies and mediums supers.