Oxalic acid is a newly registered chemical for control of Varroa mites. Product should be used during broodless periods late fall – early spring, in packages, and in nucleus colonies. Do not use with honey supers in place.
Oxalic acid will NOT control Varroa mites in capped brood. The label presents three different methods for treatment. You must follow those directions exactly. The 35 gram pack will treat 20 colonies using the direct sprinkle method and 35 colonies with the use of the vaporizer. It is not approved in California. This product can not be shipped to CA, internationally, or by Air Transport (Next Day Air, 2nd Day Air or 3rd Day Air)