>Thymol crystals are placed in an old honey jar lid placed on the queen excluder directly over the brood; an eke is used to provide the necessary air circulation. Thanks Peter. In California, we must treat at substantially higher temperatures, and can experience serious brood kill in some colonies with only 6 g. Could you please elaborate on the type of hive configuration that you are referring to? Is there typically a honey band above the brood, but below the thymol? -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** 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