During my daily news scanning for apinews (http://apinews.morkland.org) i found this:
AUSTIN - Agriculture Commissioner Susan Combs announced today that the Texas Department of Agriculture has been granted approval by the U.S. Environmental Protection Agency to issue a Section 18 specific exemption allowing the use of the formulated product ApiLife VAR containing thymol, eucalyptus oil and L-menthol in beehives to control varroa mites (Varroa spp.).
Read the whole news (http://www.ntxe-news.com/artman/publish/article_37339.shtml)
I don't know the laws of the US very well. Haven't these methods been tried for a while? Does this just mean it has been legal to sell it as a treatment?
It essentially means that in Texas it has conditional approval and is now legal to buy, sell, and use in that state.