>
>
> >I'm looking forward to see if Randy can get any info from EPA.
>
I have friends high up at EPA, but getting clear answers in writing is like
pulling teeth.


> >Technically, though, unless acetic acid is registered with EPA and has a
> label saying it may be used to kill Nosema spores in beekeeping equipment
> it is illegal to use it in such a fashion.


Not sure that that is true.  As I understand it (big caveat), unless a
chemical is registered by EPA as a pesticide, then one is free to put it
into their hives.  Oxalic acid got stuck because it was already registered
as a disinfectant.  However, it is perfectly legal to use oxalic acid to
bleach the tops of your frames--but not if your though bubble contains the
words "kill varroa."

And as I pointed out a few posts ago on this thread, yes, acetic acid is on
the GRAS list, but even vinegar "may not be used as an active ingredient in
unregistered, minimum risk pesticides."


-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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