>
> > I notice this graph
>
> http://www.veto-pharma.com/wp-content/uploads/2014/12/lutte_contre_varroa_population_EN.jpg
> with a warning "! Mass transfer of parasitism from male brood to the worker
> brood of winter bees". That for end of summer during harvest time.
>

Juanse, that graph appears to be based upon fantasy rather than fact.  I am
privileged to have an extensive data set from a researcher who dissected
thousands of worker and drone cells.  During the summer, roughly 1/6th
(from memory) of the mites were in drone brood.  As I noted in my last
post, mites do not "seek" drone brood--it is simply a matter of chance
whether they enter a worker or drone cell.

>Note: This Veto-Pharm have this easyCheck tool
> http://www.veto-pharma.com/products/varroa-control/varroa-easycheck/ Send
> me 10 please !!!!
>

Cheaper and easier (and more accurate) to go to
http://scientificbeekeeping.com/mite-washer-still-improving/
<http://scientificbeekeeping.com/mite-washer-still-improving/>

>I am revisiting varroa knowledge for a teaching on making and using monoxalate
strips.

BTW, I'm in the middle of extensive testing of the oxalate strips (I'm not
convinced that monoxalate has anything to do with them).  I'm testing
different application methods, thinking that the method used in Argentina
can be improved.  I'll have final mite counts in 10 days, and plan to mix
up improved formulations today.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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