Fumagilin-B is the only drug that is effective against Nosema disease, which stresses overwintered colonies and reduces honey prodution. Due to Nosema apis and N. Ceranae infestations we strongly recommend feeding Fumigilin-B in late Fall and early Spring to all of your colonies. Feed 2 gallons of syrup in the Fall and 1 gallon in the Spring. 1/2 gram container makes approximately 5-6 gallons.
Please note: This product can not be shipped outside the USA.