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Date: | Wed, 20 Mar 2019 21:39:35 +0000 |
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Peter wrote:
"EFB was high when OTC was the only treatment other than destruction, but since the move to shook swarming there seems to have been a considerable improvement."
A few years ago I spent the day with a Bee Inspector doing follow up inspections of apiaries that she had treated for EFB by shook swarming. I don't have the figures but recall that there was quite a high proportion that were still infected. One beekeeper on the round had a very neat row of hives. Aware that we were due to visit, he had treated for Varroa the week before, intending, for convenience, to do the follow-up treatment on our visit. EFB was found again but the hives that had been shook swarmed had a Varroa count close to zero while the adjacent colonies had large numbers of mites on the floor. It appears that shook swarming is more effective against Varroa than against EFB,
Chris
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