Re: Brood breaks for mite control
Your points are well taken Johno. I have no scientific evidence that a simple interruption helps control varroa and it may do little unless you are at the same time reducing the population of your larger hives by making splits. A brood break when using cells is about a 3 week gap. It is going to expose pretty much all varroa (with the exception of some in drone brood) to a variable phoretic period of anywhere between a few hours up to 2 weeks. This certainly can't be a good thing for mite populations. I don't understand all the mechanics of what is going on in a brood break but I know large hives early in the season allowed to continue to grow without treatment fare far worse through the season than hives that we're made up as a 3 to 4 comb untreated nuc in the early spring. I just think its simple math relating to the exponential growth of varroa in a hive through a long season.
"Ve are too soon olt und too late schmart."- A nameless German philosopher