Is it Springtime yet

[Hivemaker.]

Unfortunately the table also indicates Apivar is not authorised for general use in the UK and requires authority to be used. Is this no longer the case?

Can be bought through a vet using the cascade system, have you got a link to this map from three years ago showing the areas with resistance to Amitraz.

 

[itma]

... Unfortunately the table also indicates Apivar is not authorised for general use in the UK and requires authority to be used. Is this no longer the case?

Yes, you need to pay for a prescription, as its authorisation comes about via the EU's "cascade" system.

No question, given frequent exposure to Amitraz, the mites do develop resistance.
But because (outside of beefarming) it is rarely used in the UK, there is only a small chance that any UK mites would be resistant.
Take a look at http://scientificbeekeeping.com/the-learning-curve-part-4-the-synthetic-miticides/

 

[Gilberdyke John]

Can be bought through a vet using the cascade system, have you got a link to this map from three years ago showing the areas with resistance to Amitraz.

The map I referred to is from the Fera booklet managing varroa. I accept it refers to Apistan and Bayvarol but my concern is that the resistance developed with frightening rapidity and similar risk of evolved resistance to Amitraz is inherent in the commonplace use of Apivar if its use becomes the norm or using internet sources from overseas.
Maybe I'm overcautious?

 

[Hivemaker.]

I accept it refers to Apistan and Bayvarol but my concern is that the resistance developed with frightening rapidity and similar risk of evolved resistance to Amitraz is inherent in the commonplace use of Apivar if its use becomes the norm or using internet sources from overseas.

Yes, Apistan and Bavarol was good for ten years down south for those that used it, not been much good for the last twelve years though.

 

[itma]

I wouldn't suggest use of any synthetic miticide, except in a situation where nothing else made sense, and treatment was imperative.

I would advise people NOT to even think of using such products for routine treatment. Even one year out of (say) five.

That said, Apivar would be a good choice for a one-off emergency treatment.

Resistance to these products fades away over a few years (five?) without exposure to them.
The problem there is residues in wax, even foundation, giving repeated exposure.
That is one problem that should affect Amitraz less than Apistan/Bayvarol, because 1/ it breaks down (but to what!) and 2/ with little use, little can get into foundation wax.

Yes avoid using such products unless it is an emergency - so that they stand a chance of working IF you MUST use them, when the emergency appears.

 

[richardbees]

Sadders

Also saw eggs (no other brood) and the queen

Congratulations - well done for spotting the eggs and not just assuming empty comb

 

[Gilberdyke John]

Yes, you need to pay for a prescription, as its authorisation comes about via the EU's "cascade" system.

No question, given frequent exposure to Amitraz, the mites do develop resistance.
But because (outside of beefarming) it is rarely used in the UK, there is only a small chance that any UK mites would be resistant.
Take a look at http://scientificbeekeeping.com/the-learning-curve-part-4-the-synthetic-miticides/

Scary stuff in that article. Organophosphates are a real witches brew and its important (imho) to do everything possible to limit or avoid the progression into a world lurching from one "new" product to the next.

 

[Goran]

Why is needed "spring" antivaroa treatment, I never did that. If You did summer and winter treatments - don't do any antivarroa now ( for me pointless).
Maybe I can't imagine the differences in your climate and mine, if so I sincerelly apologize.

 

[itma]

Why is needed "spring" antivaroa treatment, ...

Only if you messed up or were messed up - perhaps by having cool weather during thymol treatment plus brood when applying Oxalic.

Spring treatment should not be necessary. But occasionally, it is.

 

[Hivemaker.]

Why is needed "spring" antivaroa treatment, I never did that.

It's not needed when autumn treatments are carried out effectively.

 

[Goran]

Only if you messed up or were messed up - perhaps by having cool weather during thymol treatment plus brood when applying Oxalic.

Spring treatment should not be necessary. But occasionally, it is.

If so, I would consider some less chemical treatment.
Amitraz in spring for me doesn't sound well. If I recall right I think is mentioned that is needed 6 months to amitraz disolve to its metabolites?

 

[peter genders]

30 years ago to-morrow began my first week of the miners strike this week looks identical lets hope it is history repeating itself weather wise it was one hell of a summer but the omens for the strike were no good from day one.