We have been trying to help our 4 hives which are under seige by robbers. I have reduced openings and have wet sheets on all. I have also ordered robbing screens from Brushy MT and awaiting their arrival. If we are in a dearth, it is a long time for the goldenrod. So much I need to do with my hives and I am at a standstill until this calms down. I have read some people put vapor rub near entrance…is this a good idea with your own bees inside? Any other options to try?