Light burn or calmag deficient?

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Cardician

Cardician

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I have 3 plants, White Widow, Northern Lights and Train Wreck. 5 Gal fabric pots using a mix of bottom 1/3 Nature super soil, 2/3 mix of super soil and Coco Loco. In a 3X3 tent. Lighting is 600 King Led and 400 W Mh/HPS at 75%. Using filtered water, pH to 6.5-6.8 with calcium citrate crystals. No other nutes. No overwatering. They have been in 12/12 for almost 2 weeks now and just starting show flowering. I am wondering what is causing this as it is not on the whole leaf, some are only half the leaf the other side is fine. Does not affect the whole plant but a few leaves here and there, mostly on the White widow and train wreck. Thanks for any advice other than this they look great!
 
Cardician

Cardician

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After some research I don't think it is TMV, as it really hasn't been proven that it can spread to cannabis. Also the plants are healthy, growing normally, leaves are normal other than the mottling as shown in the pic. And also it can be triggered by using LED lights in some strains which I am using for the first time in conjunction with a HPS lamp. I saw many examples of variegation and all pics I saw of cannabis were just like mine although none of my leaves were half yellow/half green. Thanks for the input though, learned something new.
 
Pisano

Pisano

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Hate to say it but I think you might have a pest issue. Although the variation of the leaf coloring may be a bunch of different things... the leaf curl in the last picture to the far left is concerning. Along with some of the spots on the other leaf in the picture closer to the stem. I would put those leafs under a microscope (top and underside of leaves) and check for pests.
 
Allegedly

Allegedly

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After some research I don't think it is TMV, as it really hasn't been proven that it can spread to cannabis. Also the plants are healthy,

Hate to say it but I think you might have a pest issue. Although the variation of the leaf coloring may be a bunch of different things... the leaf curl in the last picture to the far left is concerning. Along with some of the spots on the other leaf in the picture closer to the stem. I would put those leafs under a microscope (top and underside of leaves) and check for pests.
i just re read and looked at that last picture, and that is a good posibility also. i think i missed somehow that all 3 plants had the same issue.
 
wawa53

wawa53

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Id say some kind or damge from mites. If so your in for a fight thats for sure., Im still battling them for 3 months good luck. I am now heating the room up to 115f for an hr once a week in our flower room and I spray the veg tent weekly now not giving up here is my flower room today they are still there as i find eggs but I am winning I think so far.
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Pisano

Pisano

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Id say some kind or damge from mites. If so your in for a fight thats for sure., Im still battling them for 3 months good luck. I am now heating the room up to 115f for an hr once a week in our flower room and I spray the veg tent weekly now not giving up here is my flower room today they are still there as i find eggs but I am winning I think so far.
Plants look great @wawa53

Not to hijack the thread and make this a mite issue... but about those mites and raising the temps... I know of some guys that push up to 125 degrees for 3 hours between rounds on each cycle just to kill what could be in the room, JB push up to 150 😳. Im going to try to shoot for 125 for 3 hours after each run now.. did you notice anything melting or any issues when you raised the temps?
 
Cardician

Cardician

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i just re read and looked at that last picture, and that is a good posibility also. i think i missed somehow that all 3 plants had the same issue.
2 of the plants have the issue, White WIdow and Train Wreck, I read where this can be a genetic thing, in fact they specifically mentioned White Widow. With that said I snipped several leaves from both plants and put them under my egg scope connected to my laptop. I could not find any critters of any kind. I have had PM before and 2 spotted mites before in past grows as well as the usual gnats. But this grow all has gone great. They say it may decrease yields a bit but will wait as they just started into flower. The curled leaf could of been due to no water for 3 days. Am using a watering schedule that seems to take advantage of the super soil in the bottom 3rd from another site. I will continue to monitor and could be combination of the variegation and I may have had the LED light a little too close. I moved it 30 inches from top of plants and my HPS is 25-27" above the tops.
 
Allegedly

Allegedly

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2 of the plants have the issue, White WIdow and Train Wreck, I read where this can be a genetic thing, in fact they specifically mentioned White Widow. With that said I snipped several leaves from both plants and put them under my egg scope connected to my laptop. I could not find any critters of any kind. I have had PM before and 2 spotted mites before in past grows as well as the usual gnats. But this grow all has gone great. They say it may decrease yields a bit but will wait as they just started into flower. The curled leaf could of been due to no water for 3 days. Am using a watering schedule that seems to take advantage of the super soil in the bottom 3rd from another site. I will continue to monitor and could be combination of the variegation and I may have had the LED light a little too close. I moved it 30 inches from top of plants and my HPS is 25-27" above the tops.
cool bro glad to hear it. Ive had variegation a few times guess im just lucky that way lol. i never noticed much of a problem having it.
 
ComfortablyNumb

ComfortablyNumb

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Hey, OP! I don't know what I see yet. Will you give me a close up of the discolored areas please?
Use one of these if you have one:
 
Cardician

Cardician

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Here are the close-ups of the back side of infected leaf from White Widow, and Train Wreck, and from uninfected, I renamed so you can identify
 
Cardician

Cardician

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May I see the other side please.
Here is the White Widow and Train Wreck top of leaf, there are only about 8 leaves on the White Widow affected and about 12 leaves on the Train Wreck, all others look fine good green color no discoloration and like I said the Northern Lights has been unaffected, all in the same tent, watered the same same potting mix, super soil etc. You can see the difference in coloring in the photo one side is green and other much lighter. So will just continue to care for them as I have been.
 
ComfortablyNumb

ComfortablyNumb

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That's an internal change. I wanted to know what the color was, something ON the plant or IN it.
You can see the capillary lines that the color change is following.

I would take all the affected leaves off. That way I can easily see if new ones have the same issue.
 
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