How bad is pm REALLY

NICK72690

Well-Known Member
I’ve had a lot of probs this grow and was finally in a good position to flip to flowering got everything looking good now I’m 3 weeks in and fighting off powdery mildew it’s all over most of the clones I took to put out in springtime I’m gonna throw the more sickly ones out and address moisture issues but how controllable is this really I need a bunch of clones for outdoors and I really liked the strain
 

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Pa-Nature

Well-Known Member
There are many different species of the fungal disease powdery mildew, and each species attacks a range of different plants. Unlike many other fungal diseases, powdery mildew thrives in warm, dry climates, though it does require fairly high relative humidity (i.e., humidity around the plant) to spread. In cooler, rainy areas, it does not spread as well. That being said, it is capable of infecting your plants under a wide variety of conditions.

When the fungus begins to take over one of your plants, the mildew that forms is made up of many spores. These spores carry the infection to other plants through the wind. Powdery mildew can slow down the growth of your plant. In some cases, if the infection is severe enough, powdery mildew can kill your plants.

https://www.sensigarden.com/powdery-mildew-cannabis/
 

Aussieaceae

Well-Known Member
G'day NICK72690,

I'd manually remove any leaves etc, with mold that you see.

Take your plants out of the tent, inspect them 1 by 1. Remove any moldy material.

Clean, your tent down, and put the plants back in there.

Keep your humidy on the low side, with plenty of air movement, and keep manually removing any mold that reappears.
One common cause of mold is a humidity spike when the lights turn off.

I wouldn't try to flower until you have it under control.

I you want to go that route, there's a few sprays you can use. But i'd do my best to avoid this.
 

NICK72690

Well-Known Member
I have no choice but to go to battle with the stuff on my already flowering tent I’ve been spraying with fungicide but does it ever truly go away or is it really there until I toss everything I’d hate to do that but I took too many clones for the amount of equipment I have lol
 

Aussieaceae

Well-Known Member
I have no choice but to go to battle with the stuff on my already flowering tent I’ve been spraying with fungicide but does it ever truly go away or is it really there until I toss everything I’d hate to do that but I took too many clones for the amount of equipment I have lol
Honestly i've found manually removing the mold, to be effective in treating it.

I haven't used the sprays myself. I've heard a solution of water, and hydrogen peroxide can works wonders, but again haven't tried it.
Though i imagine h2o2 would be much, much safer than what you're using now.

The cause is likely an environmental factor. Usually caused by warmth, and high humidity.
 

rob333

Well-Known Member
I’ve had a lot of probs this grow and was finally in a good position to flip to flowering got everything looking good now I’m 3 weeks in and fighting off powdery mildew it’s all over most of the clones I took to put out in springtime I’m gonna throw the more sickly ones out and address moisture issues but how controllable is this really I need a bunch of clones for outdoors and I really liked the strain
pm is pretty bad man if u send a dick pic to some one on the piss and then that next day u get curry from them well pm is bad in my books ahh shit we talking bout powder mildew well thats bad aswell
 

p0opstlnksal0t

Well-Known Member
PM is everywhere and no one grows in a sterile lab. to beat PM you need to keep day/night temp and RH swings from happening. give plenty of airflow around the plants. honestly just keeping the RH and temp swings from lights on lights off from happening will cure 90% of the problem.

powder mildew is a mildew, it is not systemic and it can be fixed.
 

Roger A. Shrubber

Well-Known Member
it depends on how you keep your room...keep it clean and in a reasonable temp/rh range, and it shouldn't be an issue...let it get dirty and let temps and rh rise too much, and it'll eat plants in a day...like poo said, it's everywhere...don't give it the conditions it needs, and it might as well not exist.
 
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