Ruary Rudd gave the method for using acetic acid (saving me a job!).

Can I add a couple of points:
We can buy 80% acetic, but if you have to use glacial then add acid to 
water, not the other way around.
Most books give a week, not a fortnight as the time required.
Be careful not to inhale the fumes.  On a hot day they can be overpowering - 
and corrosive to lungs!
Always have water handy to dilute any spills, especially on clothing or 
exposed skin.
Face protection is also sensible.
I put old rags on the top bars, then add acid; not too keen on handling acid 
soaked rags.

This method will kill nosema, amoeba, wax moth eggs and adults (but not 
larvae of greater wax moth if they are deep in the comb) and resting stages 
of EFB on clean comb (it will not sterilise dead brood).

Acid can be bought from chemical suppliers here (see Links page) in 5 gallon 
plastic containers.  I paid under £17 for the last lot 3-4 years ago.

Best wishes

Peter Edwards
[log in to unmask]
www.stratford-upon-avon.freeserve.co.uk/ 

-- Visit www.honeybeeworld.com/bee-l for rules, FAQ and  other info ---