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Subject:	Apivar and Apistan
From:	allen <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Mon, 14 Jan 2013 07:08:20 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (24 lines)

According to the Insecticide Resistance Action Committee (RAC), Apivar 
is in Group 19 and Apistan is in Group 3,

See 
http://extension.arizona.edu/sites/extension.arizona.edu/files/resourcefile/resource/marcop/IRAC%20MOA%20brochure_v4%202_Oct10.pdf
( or http://preview.tinyurl.com/azo4pzg )

So resistance to one should not translate to resistance to the other.

Alternating between Apivar and Apistan could be a good idea since they 
have different modes of action and the odds against any one mite being 
resistant to both and also being fit seem small.

I also wonder if any tests have been done using strips of each at the 
same time.

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