I always forget but in Canada we can order easily from Thorne UK, which has a good online catalogue. they stock inexpensive oxalic acid. https://www.thorne.co.uk/health-and-feeding/other-diseases/pest-and-disease-hive-cleanser?product_id=7434 Off topic but hey also stock a great hive top feeder: https://www.thorne.co.uk/health-and-feeding/feeders-and-food-supplements/feeders?product_id=1641 Which also comes in a nuc sized feeder. *********************************************** 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