Dr Nasr wrote:

>>>> 

You can treat two times in October and mid Nov, efficacy can be >95%.

The important question is protecting winter bees. If Varroa mites are too
high (>10%) in August-September winter bees will be damaged from varroa
before even treatment.<<<<<

 

I asked a question re: translating a sugar roll into the action of
treatment. I assume you mean 10% in the hive total which would be a much
smaller number of phoretic mites. What number of mites collected from sugar
rolling 250 bees would trigger treatment? Spring, Aug. Sept.   2 members
were kind enough to answer.  (Thanks to Randy and Allen.) I'm wondering at
the lack of response.

 

 

Dick Marron


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