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Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sun, 22 Jul 2018 08:34:40 -0700
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Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Subject:
Re: Oxalic Acid kills mites through foot pads?
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From:
randy oliver <[log in to unmask]>
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>
> > If my understanding from ABJ and research is correct, oxalic acid vapor
> is
> > thought to kill varroa mites when the mite travels within the hive and
> gets
> > the OA on its foot pads.


OA does not exist as vapor when it touches hive surfaces or bees, otherwise
it would melt or cook them.  Instead, it forms tiny crystals.  There is
very clear evidence that if a mite's footpads touch those crystals, the
mite dies.  If a crystal touches a mite's carapace, there is no apparent
immediate effect.


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

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