Thymol for nosema

[Erichalfbee]

Can somebody please remind me how often you spray the bees.
Thanks.

 

[Apiarisnt]

If you will allow me to stir up a (European) hornet's nest:

The BBKA (Thymol ) states categorically:

Thymol is not approved for the treatment of Nosema.​

Not only is thymol ineffective against Nosema whether prophylactically or otherwise...​

Whereas the evidence demonstrates that thymol is experimentally effective against Nosema: (Effect of thymol and resveratrol administered with candy or syrup on the development of Nosema ceranae and on the longevity of honeybees (Apis mellifera L.) in laboratory conditions | Apidologie ) particulalry in syrup.

As to the recent NBU circular about non-approved medications, then any traces of thymol discovered in honey samples could well have come from approved varroa treatments.

 

[jenkinsbrynmair]

If you will allow me to stir up a (European) hornet's nest:

The BBKA (Thymol ) states categorically:

Thymol is not approved for the treatment of Nosema.​

Not only is thymol ineffective against Nosema whether prophylactically or otherwise...​

Whereas the evidence demonstrates that thymol is experimentally effective against Nosema: (Effect of thymol and resveratrol administered with candy or syrup on the development of Nosema ceranae and on the longevity of honeybees (Apis mellifera L.) in laboratory conditions | Apidologie ) particulalry in syrup.

As to the recent NBU circular about non-approved medications, then any traces of thymol discovered in honey samples could well have come from approved varroa treatments.

There are lots of studies/trials using thymol, all proved the stuff effective - about sums up how IN effective as an organisation they are really.

 

[Erichalfbee]

There are lots of studies/trials using thymol, all proved the stuff effective - about sums up how IN effective as an organisation they are really.

Got it
Every 4 days x 3
It can completely turn a colony round.

 

[Tonin]

Got it
Every 4 days x 3
It can completely turn a colony round.

Hi there, I already lost 2 hives this winter because of Nosema, what ratio do you use the Thymol in syrup. How often and how many time do you treat with that. Thanks

 

[Erichalfbee]

See here
https://beekeepingforum.co.uk/threads/what-to-do-about-nosema.702/page-3#post-496915ml of stock solution per litre light syrup as a treatment
Only when it is warm and the bees are flying.
Lightly spray the bees on each frame

1ml per litre to thymolate syrup in autumn

 

[ericbeaumont]

already lost 2 hives this winter because of Nosema

What was the evidence, Tonin?

 

[Tonin]

What was the evidence, Tonin?

I lost 2 hives , there is nothing coming in and out when is sunny day and temperature is high, i didnt open completly but just a bit and lots of dead bees around, I think is because of nosema. I need to treat other 3 hives i have left.

 

[jenkinsbrynmair]

why do you think it was nosema?

 

[Erichalfbee]

I lost 2 hives , there is nothing coming in and out when is sunny day and temperature is high, i didnt open completly but just a bit and lots of dead bees around, I think is because of nosema. I need to treat other 3 hives i have left.

You need to do a proper post mortem.
If you’re unsure post pictures of the frames from one hive
You can’t make a diagnosis of nosema without a microscope
There us no way you can spray the surviving bees at the moment.
What was your varroa protocol last year?

 

[Tonin]

why do you think it was nosema?

why do you think it was nosema?

 

[Tonin]

You need to do a proper post mortem.
If you’re unsure post pictures of the frames from one hive
You can’t make a diagnosis of nosema without a microscope
There us no way you can spray the surviving bees at the moment.
What was your varroa protocol last year?

Attached is a picture taken last year, I ben told that is Nosema..

 

[jenkinsbrynmair]

Looks more like your regular post lockdown dump to me.
What did the inside of the hive look like?

 

[Erichalfbee]

Attached is a picture taken last year, I ben told that is Nosema..

No. That’s classic normal poo from bees that have been kept in for a while

 

[Erichalfbee]

Have you kept the frames from the dead outs? As I suggested put some pictures up and we might be able to help. Did you treat for varroa?

 

[drex]

Excessive poo streaking can be a sign of dysentery, not necessarily Nosema. Nosema can cause dysentery, as can other things.
To diagnose Nosema you need a microscope and some experience of what you are looking at. Nosema is endemic. It is only when the number of spores builds to a higher level that it causes problems. Hence not as easy as just spotting some spores under the scope.

 

[masterBK]

You can also have Nosema with no dysentery present if the bees have Nosema ceranae. This relatively recent "intro to UK" strain is becoming the predominant one in some parts of the UK displacing the Nosema apis strain that most of us are familiar and which was often accompanied by dysentery

 

[Tonin]

No. That’s classic normal poo from bees that have been kept in for a while

Thanks