>
> >If you don't have a diagnosed case of EFB, don't treat.
>

I'm in complete agreement.   We sell a lot of nucs.  We have a no-questions
swap out policy if a nuc has a problem.

In answer to Seth, the dose of oxytet is 200mg per dose, 3x, for an
average-strength colony.  So you should cut that to perhaps a third for a
nuc.   It can be applied by dusting, in syrup, or in extender patty (for
some reason, the recommended extender formulation is 800mg/colony).  Both
dusting and syrup application require three treatments, but are very
effective.

What has worked very well for us for 10 frame hives in very early spring
is to apply 200mg as dust, along with 400mg as extender patty--both applied
at the same time.  The dust gives a quick dose to hit the bacteria, then
the extender patty continues the dose for roughly another 10 days.  You'd
reduce the two figures above for your nucs.
-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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