is that a black slotted tray with cooking oil underneath, goes under your screened bottom board?
No this is a whole new bottom board that has had years of work put into it to stop the small hive beetles at the entrance before they get into the hive, and if they do make it in then the bees will chase them down the holes in the corrugate into diatomaceous earth or oil in the tray underneath. It has been proven to catch at least 80% of the beetles at the entrance.is that a black slotted tray with cooking oil underneath, goes under your screened bottom board?