Here is part of the label instructions from my package of Fumagilin-B: “Heavily infested colonies that will no longer take in syrup may be sprayed repeatedly, directly onto the bees, frame by frame with 1:1 sugar syrup (one part sugar to one part water) containing 2 g of Fumagilin-B per litre of syrup.” Regards, Dick Allen **************************************************** * General Information About BEE-L is available at: * * http://www.honeybeeworld.com/bee-l/default.htm * ****************************************************