Is this Powdery Mildew? WTF argggg!!!!

Garbage_bear · Apr 18, 2022

I bought a clone the other day that may have had some powdery mildew on it. I didn't even bring it in my grow room and I have noticed this white dust on a couple of my plants. What should I do? Ive never had it before. I am four weeks into flower! See pictures(sorry for the blurple). It is in the low center below the gnome.

Moe.Red · Apr 18, 2022

Does it wipe off?

What are the big drips in the last pic on the left?

Buzzzz · Apr 18, 2022

Garbage_bear said:
I bought a clone the other day that may have had some powdery mildew on it. I didn't even bring it in my grow room and I have noticed this white dust on a couple of my plants. What should I do? Ive never had it before. I am four weeks into flower! See pictures(sorry for the blurple). It is in the low center below the gnome.

Hard to tell with the purple light,maybe take a cple pics under white light.

Garbage_bear · Apr 18, 2022

Moe.Red said:
Does it wipe off?

What are the big drips in the last pic on the left?

Yes the powder wipes off. I just watered and few drops hit the leaves.

Garbage_bear · Apr 18, 2022

Buzzzz said:
Hard to tell with the purple light,maybe take a cple pics under white light.

Well I already hit it with some peroxide water mix so it won't show up now. I am hoping that takes care of it.

Moe.Red · Apr 18, 2022

Sounds like you got it.

Temp, RH and airflow? Do you have the ability to drop RH and up the airflow? If not, you may need to defoliate some.

Buzzzz · Apr 18, 2022

Garbage_bear said:
Well I already hit it with some peroxide water mix so it won't show up now. I am hoping that takes care of it.

If you can lower humidity ,keep it very dry,blow a strong fan on them and get frequent fresh air replacement it may stop it

Garbage_bear · Apr 18, 2022

Moe.Red said:
Sounds like you got it.

Temp, RH and airflow? Do you have the ability to drop RH and up the airflow? If not, you may need to defoliate some.

I have an AC/Heat/Dehumidifier in the room. I can set it to remove some humidity. I seems to stay about 50% to 60% humidity. I didn't think that was too much. I can add some more fans.

Moe.Red · Apr 18, 2022

Garbage_bear said:
I have an AC/Heat/Dehumidifier in the room. I can set it to remove some humidity. I seems to stay about 50% to 60% humidity. I didn't think that was too much. I can add some more fans.

When you have PM, sometimes you have to make changes beyond what is normal range to keep it at bay.

Once it is on your plants, you will never get it all until you harvest and sterilize.

But you are right, this cultivar must be sensitive to PM because your setpoints are what I would expect at this point.

Also up your cleanliness game - wear gloves when working on the plants and wash up good before and after. Do whatever you can to minimize spread via farmer contact.

Is this Powdery Mildew? WTF argggg!!!!

Is this Powdery Mildew? WTF argggg!!!!

Garbage_bear

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