Cuprinol is a pretty standard treatment for hives here in the UK. >Has anyone on the list had experience of using either or both of these named products on wooden beekeeping equipment? --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.423 / Virus Database: 238 - Release Date: 25/11/2002