1st Time Powdery Mildew - Controled? But not Stopped

In all my yrs of growing I've never had PM in my grow room. I first noticed it at the beginning of wk 3 of flower. I drenched everything with a neem based fungicide. Things looked good for a wk but the white dusting started to pop up here and there again. I didn't want to go with the fungicide again, being too far into flower, so I've been using a dilute mix of potassium bicarbonate, did a full drench right off the bat, and have since sprayed on affected areas only. it seems to hold it back, but not putting an end to it.

Are there any other options to try at 6 1/2wk? Need to get to 9 1/2wks.

What are the effects of PM on the harvest?

It taste like crap and makes me stuffy! I battled it my Last run (small) ended up treating every 10ish days till now, hanging as I type this. My run before was my first experience, h2o2 washed and I water cured. Seemed fine? I cooked with most of it ..
I just put an lsd, super lemon haze and a blue cheese into my room -AFTER- competently spraying everything down with 50/50 bleach/water - TWICE !!
Hope I never see it again ...
Time will tell

Thanks dux, kinda what I expected. Hoping that a little tane & everclear will cure the infected. Here's a shot of the rm, it looks ok but I just don't know how much has crawled into the bud.

And I do plan on the bleach cleaning when this grow is done.

Dux is correct, defend with Neem oil, every 5 days, and when the Pm angel hits big time, wash rather than spray with peroxide or bleach, bleach is cheaper in a small bath
can be difficult with a 5 us gallon pot but not impossible, just wrap in plastic and rotate the plant in a bleach(10%) bath ..look to reducing the water in your grow space, and washing down the room in bleach after the grow ...good luck

vostok said:

Dux is correct, defend with Neem oil, every 5 days, and when the Pm angel hits big time, wash rather than spray with peroxide or bleach, bleach is cheaper in a small bath

can be difficult with a 5 us gallon pot but not impossible, just wrap in plastic and rotate the plant in a bleach(10%) bath ..look to reducing the water in your grow space, and washing down the room in bleach after the grow ...good luck

Click to expand...

Well I tried the H2O2 bath yesterday on 2 Satori's and today I washed a Lemon Kush.
I was quite surprised when I did the final trimming after drying the water off, that the Satori's were just as sticky and fragrant as the previous harvest. It smells very nice in the drying rm now. I'll post again in a couple of wks when its ready for a few random samples. And I want to see if any PM comes back again.