Re: Best Late Fall Varroa treatment?
Perhaps those of you suggesting oxalic acid missed this part of David's original post:
Oxalic acid is not a registered miticide in the US. The effectiveness of OA is not the issue here.
Originally Posted by David LaFerney
From Randy Oliver:
Both lactic acid and acetic acid have shown some effectiveness in killing varroa, but oxalic has become the organic (carbon-containing) acid of choice. It is approved for, and much used in, a number of European countries, Canada, and New Zealand. It is not yet registered for use in the United States, and as such, this article is directed toward our foreign friends, and informational only for U.S. beekeepers. The ABF, headed by Troy Fore, has petitioned the Feds for registration of OA in sugar syrup, based upon research by Marion Ellis, of the University of Nebraska.
USDA Zone 7A Elevation 1400 ft