> > > The results reported here suggest that the Varroa population exposed > during 8 successive years to oxalic acid treatments remains susceptible to > this acid. I find it interesting they are evaluating potential resistance to OA, without actually understanding how OA impacts varroa (my understanding is there are theories on how it kills varroa, but no definitive proof). Seems more logical to understand how it works first, than to determine if it will continue to work long term. But still, very good news. OA has been a great arrow in my quiver, and while I've heard reports from Europe where it has been used for a decade with no resistance, until now I just considered it mostly unsubstantiated "back woods" claims. *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html