>> I also, understand that the ideal time for treatment is when there
>> is little or no brood.  That takes care of the concerns about brood,
>> but -- if we think about it --what is the weather likely to be when
>> the brood rearing is cut back to nil?
>
> The greater problem here is that by the time that there is little or
> no brood it is far too late to treat a colony for varroa... etc.

Actually the question was when to STOP treating weekly with FGMO, not when
to treat.

The comments quoted above were suggesting that stopping too early -- at
first frost, as proposed -- would mean missing one of the best periods for
varroa treatment.

FGMO is only mildy efective, and must be applied many times to have an
effect, and must monitored regularly for efficacy.

allen (who does not generally speak of himself in the 3rd person).
http://www.honeybeeworld.com/diary/

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