> > The miticide HopGuard was not effective in managing V. destructor, and
> alteration of the current delivery system is necessary. The findings in
> this study regarding HopGuard are significant, as it is the first study
> that involves the application of HopGuard to colonies with brood.
>

Actually Randy did studies of hopguard that came to the same conclusions.
The studies were on his website. As I recall they showed a drop after
application but a quick rebound compared to formic and thymol.

In essence, Hopguard is a stopgap type treatment until you can use an
effective one.

Bill Truesdell
Bath, Maine

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