Disclaimer: I am not an expert and this is info passed on to me....
I asked about this over on Bee-L and a few of those memebers discussed this with me through personal emails instead of posting it on the forum. There are alot of different variables that need to be considered depending on how high of spore counts you have, how much time you have before placing honeysupers on, are the bees so bad they are not taking syrup, etc.
U.S. measurements:
Single drench(1 cup) treatment-4.5 g powder per colony(not active ingredient measurement)
2 treatments-2.25 g per treatment
3 treatments-2 g per treatment
4 treatments-1.5 g per treatment
If the spore counts are high do a strong dose the first time and follow up 2-3 more treatments of the lighter dose.
Using the 2 treatment schedule- 450g fumagilin(4g short of the 454g bottle) mixed in 13 gallons of syrup solution will provide 1 treatment(2.25g fumagilin powder) for around 200 colonies.
Same as above but broke down to a smaller batch-112.5 g fumagilin mixed with 3.25 gallons will give 1 treatment to around 50 colonies.
This is what I am doing-I have a 6 gallon bucket with a line where 3.25 gallons is. I mix(paint mixer on a cordless drill) the 112.5 g with 3 qts water in a seperate bucket(2 gal). I then poor the fumagilin water mix into my pail with the 3.25 gallon mark. I then fill with HFCS 55 to the line and mix well. I have a veggie can with a bunch of holes drilled in the bottom nailed to a stick. It is attached to the side stick at an angle so when I stand upright with the can close to the hive top it is level. I have another small can nailed to a stick for dipping out of the pail. That can has a notch cut out of the top of it to pour from that allows me to only have 1 cup solution inside of it. I put the drench can over the colony and pour from the dipping can into it while moving the drench can around to spread the solution evenly over the bees. Myself and a helper(all he did was open and close colonies) drenched 448 hives that were divided in 2 yards 5 miles apart in 5 hrs. It takes longer to remove the lid and put it back on then it does to drench. I mix each batch on the spot. I had spore count avg of 15.1 million per bee from 15 sample hives so I am doing the 2 treatment ratio 3 times.
Like I said in the beginning-I am not an expert but this is what I am doing. I will send bee sample out again from the same colonies that were sampled from the first time to see what the spore counts are after treatments.
I asked about this over on Bee-L and a few of those memebers discussed this with me through personal emails instead of posting it on the forum. There are alot of different variables that need to be considered depending on how high of spore counts you have, how much time you have before placing honeysupers on, are the bees so bad they are not taking syrup, etc.
U.S. measurements:
Single drench(1 cup) treatment-4.5 g powder per colony(not active ingredient measurement)
2 treatments-2.25 g per treatment
3 treatments-2 g per treatment
4 treatments-1.5 g per treatment
If the spore counts are high do a strong dose the first time and follow up 2-3 more treatments of the lighter dose.
Using the 2 treatment schedule- 450g fumagilin(4g short of the 454g bottle) mixed in 13 gallons of syrup solution will provide 1 treatment(2.25g fumagilin powder) for around 200 colonies.
Same as above but broke down to a smaller batch-112.5 g fumagilin mixed with 3.25 gallons will give 1 treatment to around 50 colonies.
This is what I am doing-I have a 6 gallon bucket with a line where 3.25 gallons is. I mix(paint mixer on a cordless drill) the 112.5 g with 3 qts water in a seperate bucket(2 gal). I then poor the fumagilin water mix into my pail with the 3.25 gallon mark. I then fill with HFCS 55 to the line and mix well. I have a veggie can with a bunch of holes drilled in the bottom nailed to a stick. It is attached to the side stick at an angle so when I stand upright with the can close to the hive top it is level. I have another small can nailed to a stick for dipping out of the pail. That can has a notch cut out of the top of it to pour from that allows me to only have 1 cup solution inside of it. I put the drench can over the colony and pour from the dipping can into it while moving the drench can around to spread the solution evenly over the bees. Myself and a helper(all he did was open and close colonies) drenched 448 hives that were divided in 2 yards 5 miles apart in 5 hrs. It takes longer to remove the lid and put it back on then it does to drench. I mix each batch on the spot. I had spore count avg of 15.1 million per bee from 15 sample hives so I am doing the 2 treatment ratio 3 times.
Like I said in the beginning-I am not an expert but this is what I am doing. I will send bee sample out again from the same colonies that were sampled from the first time to see what the spore counts are after treatments.