phosphoric acid mold preventer?

Basically a rumour came about the acid doesnt harm the plants and is great for mold problems im in no so sunny melbourne australia wondering if it could be of use cheers

I see this thread is more than a year old, but since this thread is on the first page of a search for "preventing mold" I think it needs to be answered. I have heard that acid helps to prevent or discourage mold, however it will also change the PH level of your soil which could stress your plants considerably.

Phosphoric acid is a strong anti-organic agent. It is like hydrogen peroxide on steroids.
We used PA to clean animal scale at UCLA. I wouldn't have it anywhere near my plants.

BigSteve.

dose makes the medicine, what are the details about strength of the mix?
too much would certainly be a disaster, so subbing if any others have experience