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### Author Topic: Can someone help me settle this?  (Read 5059 times)

#### Mklangelo

• House Bee
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##### Can someone help me settle this?
« on: September 28, 2008, 11:04:23 AM »
I read everywhere that 1 tsp of Fumigilin B is equal to 5g.

According to what I'm finding out on my own, that's just not true.  At least without a gram scale.

1 tsp of Fumigilin B equals 2.5 g.

I'm using a cooking calculator.  FB is about the consistency of powdered sugar.   So then 1 tsp=2.5 g.  I still find it hard to believe that everyone is dosing this stuff at 50% strength.    ie;  only 1 tsp/gallon of syrup.

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#### MustbeeNuts

• Field Bee
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##### Re: Can someone help me settle this?
« Reply #1 on: September 28, 2008, 11:26:31 AM »
Well I don't know the difference in tsp or grams, but the instructions say to use a rounded tsp per 8lbs sugar and a half gallon of water. I use it that way cause it says to. I figure they know whats right? If it don't kill the bees it only makes them stronger. LOL
Each new day brings decisions,  these are  new branches on the tree of life.

#### Mklangelo

• House Bee
• Posts: 403
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##### Re: Can someone help me settle this?
« Reply #2 on: September 28, 2008, 11:42:57 AM »
Well I don't know the difference in tsp or grams, but the instructions say to use a rounded tsp per 8lbs sugar and a half gallon of water. I use it that way cause it says to. I figure they know whats right? If it don't kill the bees it only makes them stronger. LOL

My instructions are in grams and Liters.   :-)

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If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost \$100, get a million miles per gallon, and explode once a year, killing everyone inside.
- Robert X. Cringely

#### randydrivesabus

• Queen Bee
• Posts: 1072
##### Re: Can someone help me settle this?
« Reply #3 on: September 28, 2008, 12:19:33 PM »
i just did a little googling and found that 1 tsp of sugar=4 grams. if you are talking rounded tsps then it is less precise.

#### doak

• Super Bee
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##### Re: Can someone help me settle this?
« Reply #4 on: September 28, 2008, 12:43:16 PM »
If you follow the instructions and you are wrong, then don't beat yourself up. :roll:
If you don't, then are wrong, then beat yourself up. :roll:
doak

#### Robo

• Technical
• Galactic Bee
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• Beekeep On!
##### Re: Can someone help me settle this?
« Reply #5 on: September 28, 2008, 03:38:22 PM »

I just happen to have an old bottle of the stuff laying around and weighed a teaspoon and it was 4 grams.

rob..
"Opportunity is missed by most people because it comes dressed in overalls and looks like work." - Thomas Edison

#### rdy-b

• Super Bee
• Posts: 2286
##### Re: Can someone help me settle this?
« Reply #6 on: September 28, 2008, 10:07:08 PM »
DANG ;)   one tsp to the gallon is the dose-RDY-B

#### BEES4U

• House Bee
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##### Re: Can someone help me settle this?
« Reply #7 on: September 28, 2008, 10:56:10 PM »
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)

MEDIVET   FUMAGILLIN-B
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!
Ernie

E. B. LUCAS APIARIES
bees4u.com
(Queen Breeder)

#### rdy-b

• Super Bee
• Posts: 2286
##### Re: Can someone help me settle this?
« Reply #8 on: October 07, 2008, 01:50:25 AM »
SCROLL TO THE BOTOM and you will get the proper dosage -sory about it being sideways -RDY-B
http://www.medivet.ca/medivet/guidelines/Fumagilin-B%20US%20imperial.pdf

#### mountainvalleybee

• New Bee
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##### Re: Can someone help me settle this?
« Reply #9 on: October 25, 2008, 12:31:36 PM »
Never used the stuff.
We are their Keepers, but not their Owners, for they are of Nature and No One owns Nature.(www.mountainvalleybees.com)

anything