Re: Why are beekeepers not all using vaporized oxalic acid to treat varroa mites?
I agree with your quote from the FIFRA document. But note the part above that I highlighted. From that highlighted phrase, it SHOULD be CLEAR that INERT status of a given ingredient depends on the particular pest the pesticide is targeting.
Originally Posted by Daniel Y
When oxalic acid is the active ingredient in a pesticide - such as OA vaporization or dribble, it is not exempt and is subject to EPA regulation. When oxalic acid is merely used to deal with 'hard water' and does not target any pest, then it is an inert ingredient in a pesticide that has some other active ingredient..
ultracrepidarian >> noting or pertaining to a person who criticizes, judges, or gives advice outside of his expertise