I use varox Vaporizors. I have two so I can leap frog them. Currently I only have eight Hives. I was down to three, I split, made some queens, and eight of the ten exploded, two dwindled so I shook them out. I hope to double the number next year and get back up to where I want to be! This year I am trying to solidify the bees I have.. So far I have avoided swarming and have boxes seven mediums high, so there should be some honey to gather next month!!!!