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Old 11-25-2007, 05:40 PM
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Default Some leaves curling in...WTF?
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Growth is explosive, but some of the leaves have become shiny and are curling inward as you'll see in the pics below. Quick info. about setup:

250 Watt HPS approx. 15 inches above growth
Air temps high 70s - low 80s
Humidity 45%
TDS Mid 600s
Ph 5.75
Botanicare Nutes

I can't figure out why these leaves are doing this.....
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File Type: jpg Curlers.JPG (139.4 KB, 0 views)
File Type: jpg Curlers 2.JPG (124.6 KB, 0 views)
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Old 11-25-2007, 05:52 PM
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give em a day if the ends dry and die flush it too much nitrogen
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Old 11-25-2007, 05:57 PM
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It looks a lot like over heating to me. I had a fan go out in my grow room,and all my leafs looked like that one on the end. They all recovered. You said your temps were in the 60's that shouldn't be a problem...
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Old 11-25-2007, 08:35 PM
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That would make sense as the doors were closed for 2.5 days straight while I was out of town for Thanksgiving. Max temps reached 84 F according to my digital themometer/hygrometer. Do you think, however, that this is an extreme enough of a temp to cause overheating stress?
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Old 11-25-2007, 10:35 PM
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Any other thoughts on these leaves? Anyone???
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Old 11-25-2007, 11:57 PM
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I don't know about 84 degrees maybe... I run at about 82 degrees give or take and they are fine.
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Old 11-26-2007, 12:52 AM
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My twins are a rich dark green, leaf tips curled in.... too much Nitrog. after a week of straight PH,d H20 they've straightened out

Although those leaves do not look like mine did, my leaf sides were flat with tips undercurling...
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Old 11-26-2007, 01:28 AM
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try to find a way to expel the hot air. i try to stay 70/80. how old are your plants. they seem a little hot friend.
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Old 11-26-2007, 08:09 AM
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I agree with whoever said overnute problem if ph is normal (5.7 is perfect if you've been keeping it stable.) 84 degrees isn't going to do that to your plants unless you put something on them like an antifungal or spray or something and didn't pull back your lights. I'm guessing overnute.... pretty good one too.
Last edited by Weedhound; 11-26-2007 at 08:14 AM.
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Old 11-26-2007, 09:21 AM
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Even with PPMs being in the 500s??? I've had several people p.m. me saying that they've never overnuted with Botaincare, even at full strength and I've been running at about 1/4 - 1/3 strength....

Sigh.....
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