Strains have PM, should I get rid of them or what

weedstoner420

Well-Known Member
Once it gets on a plant can it just go away on its own if the environment is dialed in?
Not really...the range of environmental conditions under which PM can continue to live/grow are a lot broader than the conditions it needs to germinate. Once it germinates and starts growing, it will continue even after your environment is dialed in.

I'm gonna second (third?) the recommendation to get your environment in check first and foremost. Mold/mildew spores are everywhere, but they can only germinate if conditions are right. Conditions to avoid are: high humidity (over 70%), large swings in temps and humidity, and areas/pockets with little to no air movement, where humidity can build up. If you don't correct the environmental conditions that allowed it to germinate, it's just gonna come back.

Once you get the environmental factors under control, then get rid of all the major sources of spores (i.e. other plants with mildew). You might be able to save them by just removing all the affected leaves/stems, but if it were me I'd be thinking about taking cuttings from leaves/stems with no mildew and starting with a clean slate, at least on the plants that already have it...
 

StonedGardener

Well-Known Member
Thanks for all the help, its got bad reviews on amazon and people said it is really toxic.. Probably just gonna try the sulfur instead bc people said that works.
That's f'ing bullshit......you ask these geniuses, the toxic nature of this fungicide,
I'm dieing to to know !
 

Gemtree

Well-Known Member
I just ran an ozone generator I got off Amazon for 20 minutes or whatever and let it air out. Had my window ac and dehumidifier going so it got in there too. Never saw it again (knock on wood)
 

StonedGardener

Well-Known Member
I just ran an ozone generator I got off Amazon for 20 minutes or whatever and let it air out. Had my window ac and dehumidifier going so it got in there too. Never saw it again (knock on wood)
Now that's fantastic, that's the first time I've heard about this method . Thanks so much for informing me , I'll definitely check it out!
 

Meast21

Well-Known Member
I just ran an ozone generator I got off Amazon for 20 minutes or whatever and let it air out. Had my window ac and dehumidifier going so it got in there too. Never saw it again (knock on wood)
What's the premise behind this?
 

Meast21

Well-Known Member
Can PM cause cuttings not to root or to root slowly? I usually get cuttings to root around day 13. Now its day 17 and only half of them have rooted... I also noticed 1 cutting has PM on it.
 

weedstoner420

Well-Known Member
Can PM cause cuttings not to root or to root slowly? I usually get cuttings to root around day 13. Now its day 17 and only half of them have rooted... I also noticed 1 cutting has PM on it.
Anything that affects the health of the plants will make cuttings root slower (and everything else happen slower too).
 

weedstoner420

Well-Known Member
I'm not sure I'm guessing low 50's, I grew DWC and have a lot of strong air movement from my in-line fans.
I would check it inside the tents, at least in my basement it's usually ~10-15% higher inside the tent than out.

If you can, get a meter that does min/max, and check what the range is on a typical day. Big swings in temps and humidity are really good for mold/mildew germination...
 

weedstoner420

Well-Known Member
This is the problem with pm. You eventually get to the point where you cant treat.
If it is there, by harvest time it is rampant regardless of humidity.
Yah, high humidity is only required for germination. Once it's growing, it will happily thrive at 30% RH with tons of air movement to spread more spores...
 
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