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Back to Grow Questions
What’s this disease and cause
Australianbuds
started grow question 2y ago
What is this disease on my plant or what is it and the cause?? Please help
Open
Leaves. Color - Black or grey
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Answer
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Chillymann
Black poison is starting to show her colors.What can i do to speed up or enhance this process.See photos.This is a outdoor grow .
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Leaves. Color - Black or grey
6y ago
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NicoKh
bad leaves
Some leaves in a bad looking don't know why, i think is overfeed or smthn what do you think? them are on the middle of the 5th week of flowering
Week 9
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Leaves. Color - Black or grey
5y ago
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m1kax
leaves brown stains
is my 1st time growing weed. my plants start get this brown stains on top leaves 2 weeks ago; i check ph was 5.95; so i think this could be calcium, because internet say they cant absorb calcium; i have high humidity before the stains appear like 80% but was only 4 or 5 days.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
3y ago
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timbarin
What deficiency do you think I'm dealing with? These are old fan leafs.
Week 13
Leaves. Color - Black or grey
5y ago
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Portnugs
Silverish hue to leaves
So I have a slight change in color on one of my girls, leaves seem to be getting a bit gray very uniform color change but only on some of the leaves. Im not sure if this symptom is due to nutrients at first I thought mold but it's very uniform. Please anyone have tips?
Leaves. Color - Black or grey
5y ago
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Fishcake
Black/brown spots
hi all its currently day 14 of flower i have noticed that there is spots on another one of my plants hope you guys could help me out
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Feeding. Deficiences
6y ago
2
2
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Indica_Jones
what is this ?
Ist alles okay mit den Pflanzen ?
Leaves. Color - Black or grey
6y ago
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3
Solved
BigGing432
Nutrient Burn, Leaf Septoria, Nutrient Deficiency? Or something else?
I have been having issues with the Purple Haze. I've tried adjusting the Temperatures, adding additional Cal-Mag, changing lumen intensity etc. I believe this may be nutrient burn? Added an old image of leaf before mainlining, the plant is 1 week old after mainlining was done.
Week 2
Leaves. Color - Yellow
Leaves. Color - Black or grey
Roots. Too few
6y ago
3
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Mancha
Need some help, I'm really lost
Hi people, need some serious help here. The new leaves look like sh¡T. They are kinda yellowish and the tops are necrosed. Some spots on the leaves too! I added some silica in the last water but I don't know if was the cause. Soil pH varies between 6.5 and 7.0. Any ideas?
Week 5
Leaves. Color - Yellow
Leaves. Color - Black or grey
4y ago
7
Solved
Glen1818
Nutrient Burn ?
Hello, can some one Tell me whats this is ? only one of four plants had this problems im watering when its dry , 2.8-3.3L
Week 9
Leaves. Color - Black or grey
4y ago
3
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The_Wanderer
🌌👽 Harvest Alien Sparkle on auspicious day... or wait? 👽🌌
Harvest on the Winter Solstice? Or wait? What would you do? Wife says harvest. I say wait. What do you say?
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Leaves. Color - Black or grey
7mo ago
3
5
Solved
darbyog
Black marks on leaves of a slow grower.
Noticed there's black markings on the edges of the leaves on our slowest growing plant. My initial thought was water droplets sitting on it before it had fully broken out or could it be something else?
Week 2
Leaves. Color - Black or grey
6y ago
1
1
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organigrower69
Discoloration
Two of my leaves have serious discoloration coming from the middle of the leaf
Leaves. Color - Black or grey
5y ago
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Smokeyboar
leaf problem what would it be cheers
Leaf problem
Leaves. Color - Black or grey
6y ago
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Solved
ButtersStotch
Leaf Deficiency
What deficiency do you think this is?
Week 10
Leaves. Color - Black or grey
6y ago
4
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Ner0z
Black discolouration on leaves
Okay so the problems with the black spots continue only on one plant. I tried reducing nitrogen and increased calmag to 4ml/g. I defoliated the affected leaves and sprayed with baking soda mix. 3 days later they're appearing again. If I don't get this fixed soon im gonna lose her
Week 2
Leaves. Color - Black or grey
6y ago
2
3
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Bochica
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
2
4
Solved
ChefdexV2
Deficiency? P?
Looks like my girls have some deficiency, anyone know what it is and how to fix it organicly? Looks like potassium to me?
Week 3
Leaves. Color - Black or grey
3y ago
1
3
Solved
Cookie_monster12
What is this caused by? Spreading through mid leaves quite fast
Week 8
Leaves. Color - Black or grey
5y ago
4
4
Solved
Aragon
Dark spot on the leaves of my seedling
Hello, i have a weird dark spot on my seedlings idk what it is and if i should be worried. I know on these genetics the leaves can turn dark purple but I don't think it would be happening this early. I fed them nutes for the first time yesterday and today this dark spot appeared.
Week 3
Leaves. Color - Black or grey
6y ago
2
2