Well sounds like you got things going in somewhat of good direction ..
I'll tell you I've had my time with the p.m. spider mites and aphids this last year.
I'm an organic Farmer for the most part but I am not 100% I'm about 92% so let me help you a little bit organic way of getting rid of powdery mildew.
Take 1 quart of 3% hydrogen peroxide to 1 gallon of water and spray this on your plant daily if you care to it will not hurt your plant. your plant will actually love it you can use it all the way through to harvest it will keep your powdery mildew at Bay.
It seems not to be able to kill the old spores because they may be in something like your fan motor or someplace else hidden.
They seem to pop out of know where.
To tell you the truth I don't even use a fan in my grow not now for almost 8 months not one lick of air movement is in there believe it or not it's true.
I've always been a person that thought that you had to have circulation I'm here to tell you they don't have to have circulation at all not one lick there's not even a minimal Breeze in my grow room.
I keep my powdery mildew at Bay that way very easily I've only had to spray now twice since I remodeled my room and cleaned it just after Christmas last year.
There's a lot of ways to control your powdery mildew problem.
I wouldn't raise my humidity if I could stand it. I keep it about 45 I don't like getting much over 45 then you start running into mold problems.
Also adding a reptile light to your grow room will help and destroy powdery mildew almost any other kind of mold.
This is one of your best bets using any kind of UVA UVB extra lighting will destroy p.m.
I run under CMH lights now
I have very little problem with p.m. along with not using any fans my problem is almost ended my humidity runs around 23% most of the time and only goes up when I water and then it only goes up to about 50% .
If I spray then we'll go up to around 78% but doesn't last very long and goes right away especially this time of year very dry in winter time in my area.
I'm lucky to stay around 23%.
You look at any one of my grow Journal and you can see how I've combat things over the years. Ive got a lot of little remedies for this that and the other thing..
But if all else fails I will use sm90 and I have a couple of other ones that I use they are more organic they work really well with p.m. and you can use them right up also to harvest.
good luck[emoji481][emoji482]
Sent[emoji297][emoji100][emoji482]