>From P. Borst: The most effective formulations were T dust (96.6%)
Pete, can you share how the dust was formulated?
I have found a similar study from 2010 which reports comparable (to the study you cite) efficacy of thymol dust (with sucrose) and on a par with Apilife VAR. No details of the thymol formulation were provided there, other than that it was provided by Medivet.
I am unable to provide a reliable link to the article, but if you go here (https://agsci.oregonstate.edu/biblio/spring-evaluation-thymol-formulated-sucrose-dust-control-varroa-destructor-parasite-honey-bee), there is a link to Google Scholar which provided (for me) a copy of the article.
Mike
Mike Garvey
Swampscott, MA
71W 42N
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