> > Not to criticize Zach, but I disagree, as would
> > every legitimate IPM education and extension
> > professional one could find.
>
> I appreciated Zach's post because he took the risk
> to
> propose clear and easy to use criteria as a first
> raw
> evaluation of the situation in spite of the numerous
> factors and considerations on varroas population
> estimation, in spite of the risk to be submitted to
> endless (but not useless) discussions about those
> factors effects.
>
> Yes people have to be aware of those multiple
> factors, warnings about methods and numbers proposed
> that are not absolute truths. But in the end, one
> has
> to take a decision on the best of its knowledge. If
> everyone is afraid to advance clear numbers and
> simple
> methods, we will no longer be able to compare
> numbers
> and methods from different sources, no longer be
> able
> to "qualitatively" and "quantitatively" evaluate the
> situation and finally no longer be able to take
> decision... so no more IPM. Just my feelings on this
> thread.
>
> In conclusion, good to be aware of all influent
> factors exposed by Jim, but raw numbers proposed by
> Zach are an acceptable first estimation in most
> cases,
> IMHO.
>
> If I can had a point from a northern hobbyist
> beekeeper about the economic theshold: the limit by
> iself is not as important as when the varroa
> population (or infestation rate, or whatever
> parameter
> you chose) will be over the limit. As I understand
> it,
> the game is not to treat when a certain number is
> achieved but to treat the appropriate way, depending
> on the time of the year (because of brood or not,
> honey supers or not, etc.) to maintain the varroa
> population so that you can have a good winter
> preparation. Thus the question "what is the varrao
> population in my hive ?" is just the first step to
> respond the the question "With such a population
> now,
> what will be the varroa population in September ?".
> I
> think, in a way, this is also the approach by the
> British varroa calculator
>
> Hervé
>
>
>
>
>
>
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