The issue with Hopguard, is that it's not inexpensive.
If one is going to spend $5+ per hive on a single treatment, it better be effective.
If I'm going to spend $$$$ on a hive treating for mites, I'll go with Apivar. Yes, it's absurdly expensive, but it's effective.
***********************************************
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