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Offlinebayorganics
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Sour Diesel discoloration and inward leaf curl
    #477742 - 09/15/10 10:05 PM (6 years, 2 months ago)

Hi guys,

I'm growing out Sour Diesel clones in my garden and am experiencing some issues that I can't figure out.

The plants were transplanted into 3 gallon containers one week ago and started exhibiting these signs a few days after. The light cycle is still in vegetative. The heat in the room has stayed between 75-82 degrees when the lights are on (averaging around 80 degrees most of the time).

The pictures are a bit discolored because of the light spectrum. The first picture shows the leaves curling inward. The second picture is a Sour Diesel without curling leaves, but yellow spots. The third picture is a Sour Diesel without curling leaves, without yellow spots, but has lighter green shades (not yellow) compared to the dark, leathery green color.

The plants are in Foxfarm Ocean Forest soil (which I had stopped using before because of nutrient burn issues). I am using organic nutrients (fish emulsion, guanos, organic compost teas, and some kelp foliar), so I am inclined to think that if it is a nutrient burn issue, then it is being caused by the Foxfarm soil.

After looking online I have found it can be a heat shock issue for the leaf curling, and then overwatering for the spotting, but I'd like to get some other opinions.

Anyone have any idea as to what could be causing these issues? I am growing Blackberry Kush with exactly the same regimen (and Foxfarm soil), and they are not exhibiting any of these problems - they look great, dark, leathery green.

My plan of attack is to just water them until I see them working out right, because I know there is enough nutrients in the soil  - it was just put in less than a week ago.

Any other suggestions?

Image 1: http://www.growery.org/forums/files/g10-37/460210152-IMG_0282.jpg
Image 2: http://www.growery.org/forums/files/g10-37/460219222-IMG_0283.jpg
Image 3: http://www.growery.org/forums/files/g10-37/460224449-IMG_0286.jpg


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OfflineBlackstatis
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Re: Sour Diesel discoloration and inward leaf curl [Re: bayorganics]
    #477782 - 09/15/10 10:29 PM (6 years, 2 months ago)

FLUSH asap!  there may be too many nutes in there from the looks of it, you may be over feeding. 

if you flush, you can start from scratch, then check your pH, get back on a watering sched...etc, you know.  have you ever flushed?  with soil i would have to do it every couple weeks.


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InvisibleMagashM
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Re: Sour Diesel discoloration and inward leaf curl [Re: bayorganics]
    #478814 - 09/17/10 10:54 PM (6 years, 2 months ago)

You sure about the temps cause it looks like heat stress?


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OfflinegeokillsA
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Re: Sour Diesel discoloration and inward leaf curl [Re: bayorganics]
    #479561 - 09/19/10 02:25 PM (6 years, 2 months ago)

Ditto on it lookin' like heat stress.  Also, Image 2 makes me wonder what time you have been foilar feeding?  I see some staining on the leaf finger that could indicate pooling of the foilar feed, which could in turn be responsible for some of the spotting you've noticed, as the pools of liquid under a strong HPS can easily burn your leaves.  Your foilar feed may also have been at too high of a concentration of nutrients, or otherwise not well homogenized.


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InvisibleLaysthepipe
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Re: Sour Diesel discoloration and inward leaf curl [Re: geokills]
    #479593 - 09/19/10 05:45 PM (6 years, 2 months ago)

Quote:

Magash said:
You sure about the temps cause it looks like heat stress?



Quote:

geokills said:
Ditto on it lookin' like heat stress.  Also, Image 2 makes me wonder what time you have been foilar feeding?  I see some staining on the leaf finger that could indicate pooling of the foilar feed, which could in turn be responsible for some of the spotting you've noticed, as the pools of liquid under a strong HPS can easily burn your leaves.  Your foilar feed may also have been at too high of a concentration of nutrients, or otherwise not well homogenized.





This happened to my plants a long time ago from an hps, heat stress, this combined with breaking the dark period sometimes, caused mine to go hermie in late flowering.

I third heat stress. Curling of the leaf blades is usually a dead giveaway of heat stress.


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OfflineCannasaurus
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Re: Sour Diesel discoloration and inward leaf curl [Re: Laysthepipe]
    #479696 - 09/19/10 09:10 PM (6 years, 2 months ago)

It's heat. The leaves are trying to dissipate water and can't Probably some salt buildup too.


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