Preparing for winter

Preparing for winter is fairly simple for me, I just put in the bottom board.  Because of the beetles I covered the bottom board with Diatomaceous earth when I put it in.  The board is about an inch below the screen.  Yesterday and this morning I found a single beetle on the bottom board trying to move but couldn't without legs.  Its amazing how destructive to the beetles this is.  I have not seen any new dead brood on the bottom board, nor beetle larvae either for that matter.  Bees still bringing in pollen and a little nectar.  Robbing has ceased since the smell of the Honey Bee Healthy sugar syrup (Don't want to do that again) has ceased so I expanded the entry a little.    Later