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Subject:	breaking the brood cycle
From:	Peter Loring Borst <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Sun, 17 Jul 2016 10:02:57 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (17 lines)

> Splits are a good tool in the IPM tool box

To which I replied:

> I wonder if there is any hard evidence that broodless periods contribute to a long term reduction in varroa. 

Comment:

I have combed the research and can find no proof that breaking the brood cycle alone will cause a significant reduction in long term mite load. Most research combines brood break with miticide application or drone trapping. I have done drone trapping throughout the season and it is ultimately defeated by late season reinfestation. IMO, Late season reinfestation is the biggest problem in our region and wipes out the benefit of early season treatment. 

PLB

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