What's wrong with my plant? Leaf edges curling in...

[whatsinaname]

This is my first grow. I have one plant under 2x 100w CFLs. It's about 3 weeks old now and I've noticed that the edges of the leaves are curling up and in towards the center of the leaf. I don't know if this is relevant, but there also seems to be some white-ish powder looking stuff on the new leaves. If anyone could give me some tips I'd really appreciate it. I'll post pics as soon as I can. Thanks!

whatsinaname Reviewed by whatsinaname on 10-12-2009. What's wrong with my plant? Leaf edges curling in... This is my first grow. I have one plant under 2x 100w CFLs. It's about 3 weeks old now and I've noticed that the edges of the leaves are curling up and in towards the center of the leaf. I don't know if this is relevant, but there also seems to be some white-ish powder looking stuff on the new leaves. If anyone could give me some tips I'd really appreciate it. I'll post pics as soon as I can. Thanks! Rating: 5

[casual]

The only way you're going to get help is a picture really... it could be a number of things ty we all want to help but make it a bit easier.

[canOking]

fert's to hot? do not over feed. my fert's was to hot and it did that to me.but just know what led up to the curling? but just a guess.:wtf: PS.goodluck...love an bud's (THE KING)

[irydyum]

What is the temp and humidity in the grow space? How often and how much water/nutes? Usually curling up of leaves is some kind of environmental reaction. Plant may be having a problem transpiring or something. Give us some more info and pics if you can, everything else will just be a blind stab.

[EnhAnceD]

the whiteness could be a mold, or mildew. The plant leaves are reaching for the sky, could be due to ur lights being to far from the tops to the leaves are reaching for it. Do you have a fan in ur space for air circulation?