>The application of vapor has the caveat that one breath of the vapors will send you into a coughing fit, and will quickly train you not to ever breath it again! I personally feel that the risk of another breath like that was more than I wanted to deal with, so I personally decline to use vapor.
Do tell. How exactly did you get a breath of the fumes?
>BTW, the Swiss page links to some efficacy data--much better than that obtained by Mike. They also found that a blower increases efficacy.
Oh, yes. My friends asked how soon and how long Mike monitored for varroa kill. They say it takes a week or so to get the drop.
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