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Date: | Mon, 12 Aug 2019 11:30:10 -0400 |
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> There are a number of isolated
> operations that do not treat for varroa, so apparently have some level
> of resistance. But when you remove those genetics from that particular
> location, the "resistance" doesn't necessarily carry with it. I've
> taken queens from reputable "treatment free" operations in TX, or VT,
> or AL and transplanted them to NC and watched their mite levels
> (unrecorded, unfortunately), and all eventually collapsed due to varroa.
I've had similar results here in MA. I have ended up treating all of them because of high mite levels. Some still collapsed. I've had better luck with Italians out of GA. Probably because I know they're not resistant and therefore, manage them better. PPBK rears its ugly head all the time in my operation.
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