I've been thinking about some of the
previous mails re OA

As others have said, often 1 treatment is 
enough for the whole year
That is, after a winter treatment, there 
will be <500 mites the next fall
Most hives can withstand this

Given that:
a mite generation is 1/2 month (or a little more)
each generation doubles  (")
at least 12 generations are possable

Well  2^12 is 4K...   minus say 3/4 mortality?

This strongly suggests that an OA treatment
kills ALL the mites or else there would be
more in the fall

Can anyone point out error in my logic?

dave

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