Oxalic acid

[LazyBkpr]

I think the thymol (they're called thymovar) strips are basically the same as your mite away strips as for the oxalic acid more then 1 usage per bee life is something they don't take very well.. :( so it's not a good treatment when the hive has closed brood since most of the mites are in there. We have something called ant acid (that's the direct translation, don't know the English word for it.) You get it in 65 and 85% concentration afaik and that does kill the mites in the brood but you can't have supers on if you want honey out of it... its also legally not allowed to use but it is tolerated by the authorities. I'm going to try beevital hiveclean, hopefully that gives good results.

Verstuurd vanaf mijn Samsung Note 3 met Tapatalk.

   I assume you are talking about a dribble or mist application of OA..  I can't comment because I have never used those methods..
   Using it in vapor form has no ill effect on the bees whatsoever, but also does not affect mites in closed cells. so two or three applications a week apart is necessary, but can be done without any side effects and repeated as often as is necessary.

[Edward]

I Think it's formic acid that also kills mites inside brood cells.


mvh Edward 

[iddee]

When ants bite, they inject formic acid, so ant acid would likely translate to formic acid.

[Edward]

HCOOH     is how they describe the chemical compound

[iddee]

http://en.wikipedia.org/wiki/Formic_acid

[Slowmodem]

When ants bite, they inject formic acid, so ant acid would likely translate to formic acid.

You mean like Tums or Rolaids?   

(sorry, couldn't help myself!)

[vossejongk]

Formic it is