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Subject:	Re: OK to Treat with OA Vapor in Winter?
From:	Marcin Matelski <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Mon, 30 Jan 2017 18:27:10 +0000
Content-Type:	text/plain
Parts/Attachments:	text/plain (14 lines)

Hi Lawrence,

I've been told that oxalic acid vaporization is not as effective when it's 37 F or less. Having said that I did this treatment to a number of hives in November when it was 35F and noticed very good mite drops when checked the inspections boards 3 days later. The treatment also "woke" the bees up. I could hear the bees standing few feet away from the hives. A few of the hives have BroodMinders installed and the data from them showed that the temperature spiked at treatment and stayed elevated for a few hours before  dropping to the comparable pre-treatment readings.


Marcin

Chicago

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