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Old 10-06-2009, 01:01 AM
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Question about Humidity

So my flower tent is a 4x4 and my humidity has been hovering around 57-62 percent lately....I know that when flowering you should have lower humidity like under 45 percent from what I've read.

My question is....will having fans blowing on the plants make having a higher humidity ok?

It seems like with alot of air directed at the plants it would keep them some what dry.

I have an 8 inch duct fan pulling air out of the room so there is alot of air moving around in there.

Also...my grow is in a garage with no cooling/heating if that makes any difference.
 
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Old 10-06-2009, 03:16 AM
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Re: Question about Humidity

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Originally Posted by Aksala View Post
My question is....will having fans blowing on the plants make having a higher humidity ok?
Obviously the humidity in the air will still be the same. But with more osillating fans blowing among the plants will greatly reduce the risk of bud rot (Botrytis) at high humidity.
Your humidity isn't bad.
I've grown plants in a closet from start to finish with humidity between 60% and 80% throughout the grow (veg and flowering), and i hadn't any problems with mold. Although i had air coming into the closet from outdoors (exhausted in the attic) and plenty of oscillating fans in the closet. The high humidity was due to growing in hydro (bubblers). A friend still operates that grow-op in the same conditions.
High humidity has a good point aswell, insects hate it. But on the other hand, fungi spores love to germinate in it. But i think the fans will help that problem.
I've always thought having low humidity helps THC production in flowering, it may be true, another member may know a bit more about that.

Last edited by john; 10-06-2009 at 03:18 AM.
 
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Old 10-06-2009, 03:32 AM
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Re: Question about Humidity

With that humidity I think you will be o.k., but if you have I think a 14^ temp. or greater swing in 24 hrs. from my expierance mold will happen
If you can keep your temps stable, you should be o.k. powdery mold will appear in a flash if you get a swing in temp. with higher humidity.
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