> Pete, I'm not understanding.  Were your virus tests for a yard average, or for that specific hive?

The virus was for one hive, taken as a sample of one. But it was an average hive for that yard

> A 5% infestation 4 weeks after a good mite treatment strongly suggests that the mite count was rather high prior to treatment, 

But it wasn't that high, as I have already said twice. I would say that the treatment wasn't very effective, that's why we did it again. But the numbers were never very high. 

I have a copy of the results from New York - Hobbyists, Sept. 1, 2016 - Oct. 31, 2016. The range they cite is from less than 1% infestation to 12%. 

What I am thinking is that DWV was astronomical despite the varroa levels being at or slightly above the threshold of 3-4%

PLB

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