I've had a page dedicated to formic acid for varroa treatment and devices
for applying it for some years now, but this discussion has inspired me to
get back to work on it.  For those of you who have bookmarked my index
page at http://www.internode.net/HoneyBee/
it is a simple click on the 'Varroa & Formic' link.
 
I've added a few more links on the formic page and will likely update some
of the existing info, including the Homesote method and the Popodi Device.
 If I use formic, Homesote would likely be my choice this year.  But I'm
sure we'll be getting some more great ideas here by that time and my mind
may change.
 
I must say I am really impresssed by the European contributions to this
discussion and appreciate the great job some have made to put up pages
dealing with varroa.  I'll be adding more of them as I have a chance to
sort them out, so if you go to the site today and like what you see, be
sure to come back later.
 
Allen