>
> >Agree, but, feeding when the counts are high is the worst thing we could
> do,
> since we will be feeding the parasite and not the bees.
>
I'll need to see some supportive data for that statement, Juanse.  Those in
the US who are doing heavy feeding appear to have less nosema problems.  I'd
be curious to see some actual data.  I assume that you are speaking
figuratively about feeding the parasite, as nosema appears to be an obligate
parasite of gut cells, not pollen supplement.

>
> >Fumagilin is effective at 90%, and spores multiply in 3 days, so it is
> wise
> to give fumagilin when spores counts are under 0.5 M at the entrance (with
> Caldwell/Fries method). If bigger than that one need to repeat the
> treatment.
>
This must depend upon the area, since many of my yards, and those of others,
rarely get below that level, and thrive.  Eischen's hard data indicate that
feeding fumagillin at that low level may actually be more harmful to the
bees than not feeding, as long as they have protein.

Randy Oliver

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