STRANGE CURL ON THE EDGES OF THE LEAVES

[noreason]

Hi folks,I need some advices cause my plants show stranges signes on the leaves.
Some plants,both in hydro and soil show a strange curling on the edges of the leaves...someone know something about this?
Is it possible low humydity is the cause?is it any deficiency?any advices?

 

[orpanic]

can't see pix...

 

[cobcoop]

Yeah, pics would help, my guess is heat stress though/ especially if it is the upper leaves.

 

[orpanic]

check this out 1st always...
http://www.icmag.com/ic/showthread.php?t=11688

 

[Proteus]

flush hard, and fertilize with a complete plant fertilizer at EC 2.0

 

[orpanic]

could be nute burn...

 

[noreason]

ok,now you should can see pics in the first post.I had trouble with my profile privacy option.

@Orpanic
Thanks a lot man,I already know that guide and just in these days I start to translate to my language for the italian community but there isn't really a tip on my trouble!here's a link:http://www.icmag.com/ic/showthread.php?t=141322

Now,let's explain...
Plants are in hydro dwc sistem and in soil too!So we can understand is not a problem caused by nute-burn!Nutes I use for soil and hydro are differents anyway.
I don't think there is any deficiency for the same reason:both hydro and soil have the same signs!
And another thing is:most of the plants are affected by this curl on the leaves,but not all!Really I don't know what to do!
Now if someone is sure,or almost sure of what type of trouble I'm having its opinion is very appreciate.
Please don't tell me to flush and use other nutes because I know this is not a problem and PROTEUS,sorry but how can u say to fertilize at 2.0 EC???
I will burn them immediately if I did.

 

[noreason]

Yeah, pics would help, my guess is heat stress though/ especially if it is the upper leaves.

mmmmm......I really don't think!I have a cooltube for each lamp,yes it's very near at the top of the plants but not too near!Temps are ok!and the problem don't affect only upper leaves.

 

[orpanic]

can't see pix, try posting them in YOUR ALBUM...

 

[cobcoop]

my guess is heat stress though/ especially if it is the upper leaves.

raise your lights, and check your temps. Good luck!
that's my best guess.

 

[noreason]

Can you see pics now?Hope I solve with my privacy options...
Temps aren't a problem,as you can see in the pisc I use one cooltube for each lamp...with air-extractor 24\24
In these past days was a very low humidity,near 0%...is it a possible cause?

 

[cobcoop]

Ah, I can see them now. that's not as bad as I was expecting. Yeah it is prob the humidity if it's at 0% rh... When the leaves curl up like that it usually means they are trying to conserve water, so get yourself a humidifier, and good luck on the grow!!

 

[noreason]

Ah, I can see them now. that's not as bad as I was expecting. Yeah it is prob the humidity if it's at 0% rh... When the leaves curl up like that it usually means they are trying to conserve water, so get yourself a humidifier, and good luck on the grow!!

Thanks for reply man,however if you look at the growroom pic,in the corner you can see my small humidifier,it seems to raise the RH over 50%,but The last week,there was a strong dry wind...so my little humidifier didn't supply enough humidity.
I sprayed them everyday with water,several times a day...but they don't seems to stop curling,also now that humidity is quite high.

Maybe I have to pray Vishnu,Brahma and Shiva,all togheder to give the plant a mystical power