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Informed Discussion of Beekeeping Issues and Bee Biology

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Subject:
From:
Blane White <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Mon, 17 Mar 2003 10:17:48 -0600
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Hi Allen and Everyone,

> "We have come... to where...we have seen NO AFB."

> Am I correct in concluding that you attribute this success to the
extender patties?

Yes.  There is no doubt in my mind.  We used dust and syrup for years
and *always* had some breakdown.  When we switched to extender patties,
we noticed a decrease immediately, then a complete disappearance of AFB.


Just a word to maintain vigilance.  When OTC extender patties came into
widespread use here in MN we noticed a definite drop in the incidence of
AFB just like Allen is reporting.  However, a few years later we started
finding more AFB again.  In fact we had a major increase in AFB finds
and testing showed that the AFB was resistant to OTC.  We has a lengthy
discussion in this topic a few years back but there seems to be a
linkage between use of the extender patties and the emergence of OTC
resistance.  At least that is what happened here.  Keep up your guard
AFB was not so easily defeated here.

FWIW

blane


******************************************
Blane White
MN Dept of Agriculture
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