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Tue, 17 Jul 2012 00:12:32 -0400 |
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On Mon, Jul 16, 2012 at 8:58 PM, randy oliver wrote:
>
> I breed from about 25 queens each year, selected for productivity and high
> mite resistance. Each year, the mite level at selection time each spring,
> after about four brood cycles, gets lower. This year, following an oxalic
> dribble in November, of the 20-frame busting colonies from which I selected
> breeders, in mid March and full of drones, I rejected any with more than 1
> mite per 300 bees, and about a quarter had zero mites in a 300-bee sample.
>
>
Do you see any correlation with Niņos/Niņas years with respect to varroa
load. Past season was a deep La Niņa and based on this information
http://apiaraucania.blogspot.com/2011/08/varroa-growth-weekly-rate-versus-el.html
a low varroa year .
But maybe this doesn't apply to California.
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