There was a prior discussion of this topic but it quickly got off track and got into the subject of willow tree tea and it's IBA content, etc. Please keep this thread on the subject of tea tree oil.
I was recently searching on another subject and came across how tea tree soil is used as an anti-fungal/bacterial agent for personal use (human nail fungus, acne, athlete's foot, etc.) and remembered how one friend had sold a product for plants (Jon knows him well, Joe Real) that was made up largely of tea tree oil and he touted it's anti-fungal properties as well as nutritional benefits for plants. Then I saw recently where another friend mentioned that he had used tea tree oil to spray his peach trees for peach leaf curl and it had worked well for that. I asked Joe Real about it a couple of weekends ago and he said he had soaked fig cuttings into a solution made of this product for some time (maybe he said an hour) before rooting and he always had 100% rooting success. I know some people don't have issues with mold on their cuttings but many do, so I wonder if this would be worth trying out.
I don't have enough dormant cuttings left right now to do much of an experiment but would like someone to give it a try. I see tea tree oil sold on Amazon, mostly by health stores. Anybody know of bulk sources?