>
>
> >But the numbers I provided showed an average 4% level in mid July. The
> MAQs were applied in early August and mid Sept.
>
> >One hive had 10%, but most were low. The colony they sampled showed 2%
> infestation in mid July. Yard average was never over 4%.
>
>
The curve is so steep at this time of year, I am wondering if it had to do
with the bulk of mites being hidden in brood combined with a declining bee
population.  I know MAQS kills some mites in capped brood - but what
percentage?  I had a yard this year that was at 6% mites on Sept 23.  I
treated it with OAV which should have killed better than 90% of the
phoretic mites.  When I checked again on Oct 3rd the mites levels had
increase to over 9%.   That is a lot of mites hidden away in the brood.

Adam
Barrie, ON

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