I put bees in a two frame observation hive in the early spring. I placed a frame of new brood comb in the bottom and a frame of older black comb with uncapped honey in the top frame. After about one month I began to see hive beetles. I was able to kill the beetles daily by pressing on the plexiglass as they hide along the edges of the frames. Next day more beetles show up. Two weeks ago I opened up the hive and took out the black comb. I could not see any sign of the beetles anywhere. I replaced it with a new frame of fresly drawn comb filled with uncapped honey..
I have seen no more beetles... Are they attracted to older black comb?