I copied this data from the package insert:
One rounded teaspoon = 5 grams
½ teaspoon = 1.5 g Fumagilin-B (31.5 mg activity)
1 teaspoon = 3.0 g Fumagillin-B (63 mg activity)½ tablespoon = 4.8 g Fumagillin-B (100 mg activity)
1 tablespoon = 9.5 g Fumagillin-B (200 mg activity)
Back page of the instructions:
Heavily invested 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 Fumagillin –B per liter of syrup.
1 teaspoon = 3.0 g of Fumagilin-B (63 mg activity) 63/3 = 21 mg
3.75 liters = 1 gallon
1 teaspoon per gallon = 3.0 g Fumagillin-B per 3.75 liters
1 tablespoon = 9.5 g (200 mg activity)
Mixing and Feeding Instructions in U.S. Measurements
Preparation of medicated Syrup:
We aregoing to mix the Fumagillin as follows:
For the prevention of Nosema apis : 44 gallons of water + 725 lbs of sugar + 16 ounces (454 g bottle)
For the prevention of Nosema cerana: we will use 2x the dose which is 32 ounces ( two of the 454 g bottles.)
The 44 gallons of water + granulated sugar was to make a 100 gallon batch.
Please notice the increase in dosage for N. cerana is 2X strength!
I could not copy and paste my excel spread sheet for other gallons like 50, 25, 5 and one.
God Luck and measure accurately!