I had read that you could also place moth balls around the perimeter to discourage bees from coming around. When I moved my bees this summer, I tried it, yet can't be for certain how well it worked. (We had landscaping done in the backyard, and workers were getting stung. Also, the moth balls were bought at WalMart, and were located in a plastic hanging container. Very convenient)
Maybe someone can chime in about this and help me get clarity on whether it might have worked.