A snip from Steve Sweet
>The question becomes: Given a steady dose of oxalic acid vapors, how long should one expect before an oxalic acid-immune population of Varroa is developed?
I was hoping that someone would present some science that addresses this idea of immune population development. I have heard some say "it is very unlikely that Varroa would develop an immunity to a good blow from a hammer". Is it that some miticides are more like the hammer and others less so?
Mike Garvey
Swampscott, MA
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