On 14 April, Bill Truesdell wrote: "I was sent a couple of scientific papers on Oxalic treatment". Interesting as apparenly no effect on honey quality even if misused - can we have references to the papers so we can look them up? UK government publication 'Managing Varooa' , 2000, lists oxalic as unauthorised but says 90% efficacy is possible , best in broodless conditions, more scientific trials needed. Time to press the UK National Bee Unit? Robin Dartington :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::