powdery mildew help

[chickweed]

I have rampant powdery mildew. I have 2 dehumid + air conditioner, temp is well regulated. Can't figure it out. Any other suggestions? My big question is I also had it in veg and sprayed twice with neem, it worked quite well for about two weeks each time, now those plants are in flower and I have alot of leaves yellowing and dying- ph is good, ppm is good, I saw somebody say that neem can clog the underside of the leaf, could this be the yellowing? All suggestions and comments would be welcome! Thanks.:)

[disrupt86]

neem can cause clogging of the pores of the plant,if u spray with neem or any substance really u should take 2 sponges and wipe down the leaves when u start to notice problems,your plants can suffocate.i would also buy a cheap humidty gauge to see if your current gauge is potentially giving u the wrong readings.do u have any mold anywere near your grow space? have u tried a sulfer burner?

[chickweed]

No mold, the space is quite clean, I have never used a sulphur burner. How effective is it? How many times can I do it with out harming the plants? I am going to try it I think. Or I may spend 20hrs wiping leaves...LOL

[Dreadscale]

Hi chickweed welcome to the forum!! :thumbsup:

I saw this and thought it may help you.
Its Organic :D
Safe Gro Natural Mildew Fungicide 1 quart (http://www.hydroasis.com/hy/productdetail.aspx?id=1125&product=safe-gro-natural-mildew-fungicide-1-quart)

[MasterKushy]

The thing with powdery mildew is that its a fungus, so if you don't get 100% of it, it can spread very easily. Wish I could be of more help, but my advice would be to brush it onto your leaves and hit every spot you find it on. Good luck!

[brettsilva]

WOE!! This is my VERY FIRST reply!!!!!!!!

I have the white powdery mildew as well :( I went down and bought Eagle 20, spray that sh** on my girls just once, and i have NEVER seen the WPM since!!!!!!!!

it doesnt mean that I will never come back though. If it does, then I will buy a sulfer can