Help the powdery mildew attack

[BigGreen]

I've read all the shit, and tried some of it. I also dipped my clones a couple times in the zone penetrator it killed it so I thought. I did'nt see anything for a month until today I was changing lights to 12 12 and cleaning up under the canopy and shit there it was again. I think mabey I should of dipped it for another week or two when they where young but now it to late and Im running scrog and the screen is about ful so no dipping. Im gonna try spraying the zone penetrator but is there anything else that will kill it completely. It really fucked up my last crop. Oh ya my rh is at around 30 all the time. Any help would be greatly appreciated Thanks

 

[centralcoastbud]

I just used some MildewCure spray I got in a bottle from the hydro store to help deal with a little PM problem. Been about a week and everything seems back in order, try increasing airflow by adding a few fans -- I think that did the trick for me.

 

[stasis]

Seriously, I had probs for years.... Ihad almost given up on some truly elite cuts. A Dehumidifier, emptied timely like, or even better, emtied by itself thru a hose and a sulphur burner used 1-2 hours a week, and you will not see any... If yo9u do, it will mean a sulphur-burn is needed, and it works. Minimizing standing water is of course, key, as well. And airflow, as mentioned by CCB above.

You won't have to worry about it then....!

 

[BigGreen]

Thanks that's what Ive been thinking about sulfur burner. That should kill it completely after a couple off weeks. I just flipped the lights so I'd like to kill it before the flower power kicks in. It can really mess up your yields like cut em in 1/2

 

[toohighmf]

Grab 1l. Of 3% h2o2 from the pharmacy. Add 4-8tbs of sodium bicarbonate aka baking soda to the bottle. Screw a bottle sprayer on, shake, spray... Blast the PM effected areas until it disolves the stuff off your leaves. Go over the whole area 3x In 1 day.. Should be gone. It's hard to believe your getting pm at 30% RH! That sucks! I personally don't care for sulfer burns, but I will use it in a last ditch effort. Try the $3 solution first. You won't regret it!

 

[baccas125]

The best thing to do is lower humidity!!!!! I have tried green cure, Potasium Biacarbonate, sulpher burners, but the best thing i have found is a chemical called SOVERAN by BASF chemicals it is a true systematic cure for powder mildew. Soveran is used in the comercial grape growing and is the "shit". one jar of soveran cost as much as a sulpher burner i suggest it.

 

[BigGreen]

Well I got the sulpher burner, burnt it for a little over 2 hours with all fans off. Tomorrow I will hit it with the penetrator + zone in between the burns.I've tried the h2o2 it really didnt do much on the last grow. If the supher burner and zone don't kill this shit then I will try the soveran. Where can you get that stuff. Im sure it works or else all the grapes would be infested. I'm trying to eradicate it I want it gone for good. Oh ya I got my RH down to 27. Last crop I had the RH at 20 it didnt matter. Ill keep trying wish me luck

 

[BigGreen]

So is there any more info on this sulphur burner method or thats it. It will kill the shit. Will I be OK spraying with the penetrator and Zone 2 days after the sulphur burn or will it wash off the all the suphur. I want to take any action I can to rid this shit it SUCKS. Any help would be sweet thanks