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From:
randy oliver <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sat, 27 Nov 2010 07:54:49 -0800
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>
> >As for the 30,000, I was going by the number of packages we shook
> depopulating the hives in mid-October years back when I shipped packages
> to Arizona.  The hive average was 8lbs.


Thank you for this piece of information, Allen--that is a good number to
know!


>
> That is surprisingly good and much better than I would expect.
>
> >I have done on a larger scale, and came up with a coefficient of
> correlation
> >near zero!  Really surprised me.  That was when I gave up on natural mite
> >drop as being meaningful if not taken over a long series.
>
> >That does not sound plausible to me.  Something is fishy.  I used three or
> four
> days and sometimes a week.  Seldom less.


These were either 48 or mostly 72 hour drops.  I checked the fishiness vs a
powdered sugar "accelerated" drop immediately after taking the stickyboard
counts.  There was a robust correlation with alcohol wash, so I dropped my
incredulity.  And since that point  have put little faith in one-shot
natural mite drops.

In any case, I am not arguing with you in any way that when a colony reaches
a natural drop of 50, or washes indicating mite levels above 10%, at a time
that it is curtailing broodrearing (such as in October) that that colony is
clearly in the danger zone of being taken down by a virus epidemic (or more
properly, "epizootic").

Randy Oliver

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