Allen,
Thanks. Any thoughts, guesses why resistance is in Italy and Florida first and
seems to not have taken hold in northern climes in Europe... or has it?
Bill Truesdell
Bath, ME
 
Allen Dick wrote:
 
> I've heard it said that it was known from the start by researchers that
> fluvalinate would have a probable maximum useful life as a varroa control
> of around ten years before resistance could be expected to appear if it
> were employed widely.