> All the quotes on harmed brood are with liquid OA not the vapor. This persists as also applying to OAV when it does not.

Hi all
I responded to the idea of potential harm by OA with several resources. It seems logical that if OA is harmful by one route, it might be harmful by others. Most of the responses by individuals have been anecdotal. 

I don't see how one can compare those to controlled studies. For example, if somebody says "I tried it and didn't notice any problems" is not the same as side by side comparison with a placebo. 

Any varroa treatment is likely to be less harmful than varroa mites themselves,, but the notion that vaporizing acid in a hive is harmless makes little sense to me. Just saying. 

PLB

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