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Back to Grow Questions
What is Themis leaf issue
Dbrito3063
started grow question 5y ago
What is Themis leaf issue
Open
Leaves. Color - Black or grey
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Answer
Hashy
answered grow question 5y ago
You have fed to much nitrogen and got nitrogen toxicity.
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Cannabis_King
answered grow question 5y ago
Might be an infestation of thrips looks very similar
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Similar Grow Questions
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The_Wanderer
Help! Black Weed!
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1mo ago
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Hi fellow growers, any idea on what's happening to this plants? All three pictures are different plants and it is spreading super fast. One plant in tent doesn't show any of the symptoms. I already flushed them and gave them a light nutrient solution with PH 6,2
Leaves. Color - Black or grey
9mo ago
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Zark002
strangely growing leaves.
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Week 5
Leaves. Color - Black or grey
4y ago
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Pav28
Light distance and power
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Week 1
Leaves. Color - Black or grey
4y ago
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Grnhead
In the 3rd photo in week 12 there is spotting on the leaves. Does anyone have an idea of what that is from? A deficiency? I had trouble getting the nutrients right and that showed up first after I flushed for a few days.
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Leaves. Color - Black or grey
6y ago
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Hello growers please help on this one, since yesterday the leaves are getting curled, yellow stains and kind of black on the leaves, you better see the images. In the third image you can see how the leave is getting these black/golden color. Any suggestions? Ty
Leaves. Color - Black or grey
3y ago
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Solved
Apolloo
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Hello everyone! Some of my leaves have small gray spots on them, like the ones in the picture. What could be causing this?
Leaves. Color - Black or grey
4y ago
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mushimushi
Deficit or excess? Or what
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3y ago
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Solved
Cookie_monster12
What is this caused by? Spreading through mid leaves quite fast
Week 8
Leaves. Color - Black or grey
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urbanbud
dark discolouration developing in flowering wk 3
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Week 14
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Feeding. Deficiences
5y ago
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leaf discolouration
edges of leaves are a blackish tint
Week 20
Leaves. Edges burnt
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6y ago
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Is this sign of nutrient lockout? I have moved her to a bigger pot now, that said I’m worried I’ve been testing my PH wrong, I uploaded a pic (day 26) is she starving? Up til now I haven’t fed her anything but water
Week 5
Leaves. Color - Black or grey
7y ago
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lovely_neighbours
Brown black spot crispy edges
I need help! Northern Light has Reddish brown spots turning dark-gray and crispy dark edges on the top leaves! It looks like a different issue from week 6 where gray spots appeared on the bottom leaves? Any ideas? Thanks
Week 8
Leaves. Edges burnt
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
4y ago
2
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Solved
The_Wanderer
Tea time for health benefits?
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Leaves. Color - Black or grey
24d ago
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Week 5
Leaves. Color - Black or grey
2y ago
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5y ago
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Week 15
Leaves. Color - Black or grey
7y ago
3
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PurpGod
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Leaves. Color - Black or grey
Other. General questions
5y ago
2
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Solved
WeedSt
These three girls are all wilting and/or barely growing. I'd say over-watering except I've only been giving maybe a quart then waiting till the soil dries a little bit. Not too much tho. Could it be a nutrient problem already?
Week 2
Leaves. Wilting
Leaves. Color - Black or grey
6y ago
4
6
Solved
Unkraut
What Deficiency?
What deficiency does this plant have? I have 15 plants inside this tent, all get the same nutes, all look great but only this one has these grey marks on the lower leaves
Leaves. Color - Black or grey
5y ago
1
3