Tea Tree Oil vs Powdery Mildew. Fight!

Well, the title says it all.
I've been working with neem for quite some time now, and I absolutely love it. Though, this year I wasn't able to use it as a preventative measure, for I was very neglectful of my plants (I am outdoor guerilla man...rar) due to being one of those functioning members of society you hear about. Anyway, usually the neem does wonders if used properly, and sometimes even as a spot treatment. This year my babes have gotten some PM. Now, I could go out and get some copper shit and be fairly certain of it's effectiveness but at the same time, fairly uncertain of it's harm to me. Hence why I'm into Organics, neem, tea tree, yadda, yadda, yadda.
So... taking my minimal knowledge of super natural (not supernatural) remedies, I consider what I use myself for any kind of fungal infection..what cleans me? Tea Tree Oil! So I look into it...minimal references about it's use on plants, but some. So I'm fairly certain of the dose that it does not kill plants at (Its strong shit).
Ranting over.. let's see what it does:

Uhhhh....

Pic 1,2,3 - Subject A - Powdery Mildew - A fungal disease that affects a wide range of plants. Wiki what?
Pic 4 - Weapon - Spray bottle.(Squirt, squirt) And a kitty, mid-stride.(Not shown : Measuring Cup. Pretty necessary instrument if you want to mimic your success or avoid your failures. This spray bottle just about maxes at 1 1/4 Cup.)
Pic 5 - Subject B - Tea Tree Oil - ...Oil from Tea Tree leaves (not Camilla Sinensis - or "tea") Wiki this!

Now, the only doses I've been able to find are ~ 2 tablespoons to 2 cups of water. This seems a little steep to me, tea tree is strong shit. Possibly stronger to Animalia than Plantae (and obviously super toxic to Fungi.) And it's about $10 for a 30mL bottle of the shit at least at my health food store, gotta go online for that shit. So I'm gonna lower the dose.
One tablespoon is just under 15mL, so in my 1 1/4 Cup I'm gonna use approx. 15mL. Only slightly lowering the dose. SHAKE WELL. Oil+Water does not mix. But if you shake it well before application, they'll come out at the same time.
Well... on my way to the plot. Wish me luck.

Well. I'm yet again impressed by the workings of Tea Tree and it's oils. Went out today again just to check in on them and possibly reapply, but...after just one application, all that PM was gone. Not a sign of it. And the dense population of trichomes was totally untouched. And I didn't have to use some metals whose affects, when smoked, are not entirely known. Unfortunately I didn't bring my camera for I didn't expect there to be much a difference. I'll get some after shots of the same badly infected leaf I showed above.
So.. end result : Tea Tree Oil - 1 : Powdery Mildew - 0 ... in a sudden death match.
Can't wait to explore the further possibilities of such a great anti-fungal,septic,inflammatory, etc.

you should try soyanara' if you can get your hands on it. the stuff works wonders for pm. its supernatural brand product i think.