>OA vapor is 3 treatments every 7 days when brood is present. Again, the
implied persistence.
I get my best results with 4 treatments every 7 days. I'm getting zero counts with this method most of the time. I do use a little more than 2gm but I don't close up the hive, I just vaporize and move on. I've ordered the JB700 from Heilyser hoping this will dramatically speed up the vaporization.
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