Crispy brown leaves in certain areas - flowering

[herby]

Hey all! I seem to have a few problems with some of my flowering Northern Lights at the moment, The are around day 44 of flowering. I am using Dutch Master gold at half strength as when i used it at full strength i was getting alot of nute burn.

But now i have 3 plants which are getting alot of dead brown crispy leaves, they are not yellowing, they are brown and dead. I thought my fan maybe drying them out so i turned it off for the night to see if anything changes tomorrow. Could not giving them enough nutes cause brown dead leaves though? Maybe i need to go to full strength nutes but just add more water ?

I dont think its a temprature issue as i havent seen it go above 30c in there yet, thats with 1 x 700w LED and 2x 600wHPS.

 

I tried getting a few photos of the trichomes but i only have a small 420 scope and its to hard to take photos through it, but it looks like i have a mix of cloudy and clear at the moment with no amber at all, i checked as i thought maybe when they are nearing completion they might start killing of there fan leaves.

anyway heres a few pics - ( i also have another NL and a Doctor in the same tent under the same lights that are NOT showing brown leaves )

 

 

 

 

 

[Ozzy420]

The 2 last pics it is dead take it out of the tent, it may cause mold through rest of the plants.

 

When i have had that issue i found it was the root zone that gave me the probs, it was to warm.

 

With the dead one have a look at the roots see what they are like...

[itchybromusic]

how close to plants is the LED 

[antiskeptic]

I found nl didn't like led panels at all, especially in dwc for some reason. Tried soil and dwc with nl with nil success, put the soil ones out in the sun and boom no issues. Changed the strain in the tent and no issues with the leds, running blueberry hash and they are loving it

[billygoat]

That sux mate .

 

I would not think the nutes are any problem, unless of course you mixed up your nute bottle with a bottle of paint thinners or something ?.... And mixing full strength with more water makes no sense it is the same as running a smaller percentage, e.g half strength...

Edited December 29, 2014 by billygoat

[herby]

Thanks for the replies guys!

Hmm bugga if its dead that sux

That means 3 of the plants are dead and still have alot of flowering to go... What a waste

All the lights are as high as they go go in the tent.

[Ozzy420]

All the dead ones if was me i would use to make oil or hash...

[spider_b]

DWC??   wat temp are ur nutes do the roots smell bad??

[Sir PsychoHashy]

No idea what the problem is, but I'd also be looking at the roots first. 

[mzgreen]

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Edited December 29, 2014 by Ozzy420