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Back to Grow Questions
What’s causing this ?
BigDaddyK
started grow question 6y ago
Drama alert - What’s causing this ?
Open
Week 6
Leaves. Color · Mottling
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Answer
Loserofthemonth
answered grow question 4y ago
Not sure why but I'm guessing your pH was a little high 2 weeks before this. Ok did I bingo?
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Complain
blendmedmedman
answered grow question 6y ago
sure ill play along, this looks like too much nitrogen at some point or this plant is a very picky eater, either way less nitrogen
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GMSgrows
answered grow question 6y ago
If your adding cal/mg and you dont really need it these spots can appear. Cheers
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Similar Grow Questions
Solved
Bingeling
Brown patches on Leaves
Brown patches starting to appear again on fan leaves. Im using ph'ed water and have begun giving her nutes since last i saw the problem about a week ago. The problem seemed to go away, but has now returned og the newer leaves. Any ideas? Lower leaf pic is the old damage.
Week 3
Leaves. Color · Dark-brown
Leaves. Color · Mottling
4y ago
2
5
Solved
pinkdragon
Just to confirm, this looks like nute burn, doesn't it?
Burnt edges, tips curled up, canoeing. I've been having trouble balancing airflow and heat in such a small tent, and as a result the tent is on average about 28 degrees celcius daytime and the plants still get a lot of wind. Looking for whatever advice you can give! :)
Week 8
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color · Mottling
6y ago
3
3
Solved
OneBakedWalrus
Deficiency?
Hi guys me again. Whats wrong with my girl. I think its a deficiency (potassium or calcium maybe??) Thinking I'm too far into flower for chems. Do i just leave it or what can I do to help her. Thanks.
Buds. Other
Leaves. Color · Mottling
6y ago
1
2
Solved
Pablo77
My plant has being well so far but now have found in one of them this sort of discoloration / spots in some of the leafs. Going into flowering now, anything I should worry / correct? Have added a bit of background in the comments
Week 6
Leaves. Color · Mottling
8y ago
3
4
Solved
Misanthrope
Leaf damage/discolouration
The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?
Week 11
Leaves. Curl up
Leaves. Color · Dark-brown
Leaves. Color · Mottling
4y ago
2
2
Solved
CookieSadpralad
Leaf browning, yellowing curl one day change.
Over night my plant went from looking good with maybe a calcium deficiency to curled leaves looking very soft and drooping. I sprayed with insecticidal soap, but in the past no harm. It is growing outdoors, 30c 60% humidity. Any help appreciated. I sprayed with kelp today.
Leaves. Curl down
Leaves. Wilting
Leaves. Color · Mottling
4y ago
3
4
Solved
Eddjack
Deficiency?
I need help recognizing a deficiency. i think it is cal mag, but it seems strange it has quite heavy nutrition. the pH of the earth is 6.20. i'm at 7 weeks and it also seems a bit slow in flowering. what can i do?
Week 11
Leaves. Color · Dark-brown
Leaves. Color · Mottling
5y ago
4
4
Solved
SirJester
Nutes too early?
The leaves of my northern lights look a little brittle and discoloured, maybe the small amount of nutes I gave were too early?
Leaves. Color · Mottling
5y ago
2
2
Solved
Walleyeguy
I have orange spots on top leaves and brown tips. I think it's a deficiency but not 100 %. Looking for some help. Thanks
Week 10
Leaves. Color · Mottling
7y ago
3
1
Solved
ezgrows4anoob
What's going on with my clones? Do not have much information to add. VPD is not terribly off, DLI around 25.
What's going on with these clones? Not sure what it could be. They could possibly be rootbound. They should have been transplanted a few weeks ago but I did not have the space.
Week 12
Leaves. Color · Yellow
Leaves. Color · Dark-purple
Leaves. Color · Mottling
4y ago
3
2
Solved
MMSC16
Yellow Leaves Autoflower
Novice grower, Outdoor. Started in a 70/30 coco-coir to perlite mix. Forgot Worm Castings until 22nd June, implemented with top dressing of Gaia Green Power Bloom and All Purpose. Overwatered at stem for a week or so. I suspect it's either an N, P ,or K deficiency (nuteburn?)
Leaves. Color · Yellow
Leaves. Color · Mottling
3y ago
1
2
Solved
Cogollo_eu
I'm still guessing what caused the disease i noticed on a single plant the first weeks of grow. A disease that didn't spreaded at all, and that affected only 2 leaves. You can see it on (Week 2 - Photo 21), (Week 3 - Photos 7, 11 & 17) & (Week 4 - Photo 4).
Week 7
Leaves. Color · Mottling
7y ago
2
2
Solved
flowerbudder
Do my girls look healthy? There's small lighter green patches here and there and some leaf curl. I might be a over analyzing/reacting. I'm a little paranoid but autos supposed to be finicky and stunt easily, and can go from bad to worse very quickly, from everything I've read.Thx
Week 3
Leaves. Color · Mottling
8y ago
2
2
Solved
MrsFunk420
Nutrient issue
Wondering if anyone knows what deficiency or excess this could be? Thinking phosphorus deficiency and if so, should we top the main kola here? Or will it fix itself if we fix the nutrient issue? Any advice or entail would be appreciated. Leaves are not dry, soft to touch.
Leaves. Color · Mottling
6y ago
3
3
Solved
DrJawn
Lower fans have brown splotches.
Lower fans have brown splotches. Eventually yellow, crispy and die. Otherwise she looks healthy. Growing in a3 gal plastic pot, recycled build a soil - perlite, Coco loco and home made compost. Soil Ph unknown. Water Ph 6.5 feeding roots organic full reg every other feeding.
Leaves. Color · Mottling
6y ago
4
4
Solved
BigBeautifulWeed
Rust leaves
What's this symptom? Is spreading in one plant on eight, same condition and nutes.
Week 6
Leaves. Color · Mottling
6y ago
3
3
Solved
Coconut_kiss
Leaf issues
What could be the issue,did a small flush yesterday hoping its high ppm but have no way to measure
Leaves. Color · Mottling
6y ago
1
Solved
John_Federic
Is this septoria or alternaria? The plant is doing well, buds are not affected (at least not now) so I hope it’s septoria. Few weeks till flowering complete, do you think I can carry on with it? Please tell me it’s septoria and not alternaria. Thanks to anyone that will respond
Leaves. Color · Mottling
3y ago
2
5
Solved
TheMayor4434
Rusty leaves in flush HELP
As a result of being stuffed in a cupboard for nearly 3 days without proper ventilation some of the leaves on nearly all of the plants have developed rusty looking leaves. I am only a week away from crop is this something to worry about should I just ride it out or take action?
Week 9
Leaves. Color · Mottling
6y ago
5
5
Solved
Zukyyy
Damaged leafs
Hi guys! I have a flowering Northern Light with several damaged leafs, as you can see on the pictures. Are they deficiencies of some sort? If so, what do you think can be the root cause? I use only filtered water and the RQS easy boost mixed with the soil since the beginning. TY
Week 7
Leaves. Color · Mottling
6y ago
1
3