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Author Topic: Nosema Ceranae - What can a new beekeeper expect?  (Read 702 times)
New Bee
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Gender: Male
Posts: 31

Location: Kemptville, ON (Ottawa)

« on: June 12, 2012, 02:33:54 PM »

Recently (May 19th) I installed two 4-frame nucs into 2 10-frame hive bodies and did my first inspection on May 27th. On June 3rd after a few days of rain, I discovered one of the hives was troubled with Dysentery on the outside of the hive which got me a little worried. I checked it again on June 6th and noticed the Dysentery worsened so I decided to take the matter up with a local bee inspector who told me it was odd to experience dysentery this late in spring. He instructed me to have my colonies tested for possible Nosema which I collected a sample of 25 bees from hive and sent them to him for analysis. That same day, I inspected my hives on the inside for any signs of dysentery which resulted in none.

Yesterday I got the results of the Nosema test I had done the week before and was told the "normal" threshold for nosema was under a million spores per bee. The results of my composite test (both hives combined) came back at 3.5 million spores per bee and another at 3.8 million for an avergae of 3.675 million spores per bee. I was told by the inspector that he didn't suspect Nosema Apis but Nosema Ceranae instead and told me to start treating the hives with Fumagilin-B which I had already started a week ago as a precaution.

As a new beekeeper, I'm baffled by all of this. And have tons of questions... Should I be concerned? What can I expect in the next few months? How quickly does Nosema Ceranae spread? Was this disease present in the nucs when I purchased them or did it manifest itself up to 3.675 million spores in the 24 days I have had the nucs? Where did it come from? Should I give up and let the hives fail?

I would appreciate all the information I can get on Nosema C.


Galactic Bee
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Gender: Male
Posts: 3928

Location: Finland

« Reply #1 on: June 12, 2012, 04:18:31 PM »

It is quite usual in beehives. Sometimes it kills and sometimes not.

What I understand, I am not going to do anything.

It is better to look from internet

Language barrier NOT included
Galactic Bee
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Gender: Male
Posts: 8186

Location: Hiram, Georgia

« Reply #2 on: June 15, 2012, 11:42:27 PM »

You can not hide from it.   It is kind of like the common cold to us.   It is out there in the hives already and is passed around in the fields with the workers.   I would not loss sleep over this unless you see sign of it on the front of the hives.   You can medicate not to keep it down in the hives.   
Super Bee
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Posts: 2234

Location: clayton ca

« Reply #3 on: June 16, 2012, 01:33:23 AM »

  being over the threshold for cerana is not uncommon-the dysentery is not a result of nosema cerana
being proactive with the cerana is not a bad thing -but the dysentery is from something else-RDY-B
House Bee
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Posts: 98

Location: southern Illinois

« Reply #4 on: June 16, 2012, 07:52:42 AM »

rdy-b good info. thanks
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