> What was the effect of thymol/Apiguard? We present data for hives treated with five different acaricides; Apiguard (thymol), Apistan (tau-fluvalinate), Checkmite (coumaphos), Miteaway (formic acid) and ApiVar (amitraz). Natural pesticides include thymol and menthol, both monoterp- enoids which are constituents of plant-derived essential oils. Despite being naturally derived, these compounds may have nega- tive effects on bees as both were found to be among the most toxic of all terpenoids tested on bees, as well as having negative effects on a colony’s ability to express hygienic behavior *********************************************** 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 Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm