Next generation in formic acid treatmens for mites. Made of all natural ingredients, this product may be used during the honey flow. Daytime temperatures must be between 50 and 84 degrees Farenheit. Wearing the required safety equipment place strips between brood chambers. Either place 2 strips for 14 days or 1 strip for 10 days, remove, and place second strip for 10 days. Contains 2 2strip packs.