I can not identify whats wrong with leaves.

I have looked at the guide for deficiencies and I am still stumped as it doesn't look like any of them. Could it be nute burn? Please help



Thanks in advance guys...

BUmp, halp please :/

Need more info. Outdoors or in? What temps? What medium, humidity etc etc etc

Indoors, humidity about 40 - 55%, nft system, temps about 23 - 38 degrees celcius.

Tieris said:

Indoors, humidity about 40 - 55%, nft system, temps about 23 - 38 degrees celcius.

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Is it all the leaves or just the couple there ? That's a new one on me do you have any bugs....it looks like something "oozed" it's way around the edges munching on your girl...BTW welcome to RIU are you new to growing as well as this site? I'm wondering why you chose the nft system instead of soil?

38!!!? Tooo hot! Way too hot. That's your problem, if that's not a typo...

MajorCoco said:

38!!!? Tooo hot! Way too hot. That's your problem, if that's not a typo...

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Good catch I'm high and a lazy american so I didn't do the conversion but hey ya that's too fuckin hot IMO it should be no more than 27C in there, and do you have a fan blowin on her?

30 not 38 it was a typo And i thought something had got to the plant also, but not a trace of anything on the plant or inside the tent.

Yes I am new, this is my 3rd grown now so I'm improving and learning all the time I chose NFT due to a friend having used one for a long long time, so it was a simple move for me as he was always around for help and advice. He's not anymore lol

And yes I have a fan blowing on her, should I not?

30 is still high, and could explain the deformed leaves...your plant could just be more sensitive to heat than others...IMO I would wait a few days to see if it progresses or if she grows out of it....Keep the temps below 30 if you can though. 28 is as high as you should go if possible, 26 is about ideal, but tricky to achieve if you live somewhere hot! Some plants are fine in high temps, but I think that isn't true of many hybrids...

If it progresses btw then it looks like nute burn may be the next most likely culprit. Make sure you aren't over-cooking your nutes. Dial them back a bit if you see it getting worse...

Thanks a lot for the help guys, will keep you posted

Although this image is far more stressed than your plant, it still shows the ruffling of the leaf edges that you have in common.

View attachment 2748490

This was pulled off of a search for Marijuana heat stress.