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Back to Grow Questions
yellow leaf, brown spots deficiency
jeffrey420
started grow question 3y ago
Can you guys help me identify this deficiency??
Solved
Week 9
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Color - Pale
likes
Beans416
answered grow question 3y ago
Hey it looks like nitrogen deficiency. Buds are taking nitrogen from the leaves and not the soil. Hope this helps happy growing.
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Selected By The Grower
jeffrey420
answered grow question 3y ago
Could it mag deficiency?
1 like
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StaresAtPlants
answered grow question 3y ago
Another thing to look at is where/what. Where/What leaves are affected. Old/bottom or new/top. My guess is N, P, and K, unless you have re potted recently.
1 like
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ernest_twwg
answered grow question 3y ago
https://dutch-passion.com/en/blog/a-visual-guide-to-cannabis-deficiencies-n987
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Similar Grow Questions
Solved
maxwell
The worst thing I’ve ever seen
Today my friend send me some pictures and we don’t know what’s wrong, he bought some cuttings few days ago and now they are looking worse! Maybe you know what’s wrong?
Week 12
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Yellow
6y ago
1
1
Solved
ItalyGrow
Yellow tips
Dont know why but one of the girls is suffering from stress. I think this is the cause for the yellow tips or do you have a other opinion? I did LTS training every two to three days, maybe therefore? A other reason could be light burn. But with a distance of 50cm I dont think so
Week 4
Leaves. Color - Yellow
6y ago
2
4
Solved
MBnVA
Nutes. Advice-Zkittles
Nutrient burn? All advice is welcome! 1st grow. If you see my pics...thoughts on thinning them out. Thanks ✌️
Leaves. Color - Yellow
Feeding. Deficiences
Techniques. Defoliation
4y ago
1
1
Solved
ItsLegalInMyHouse
Hi all! I was checking on my plants and noticed one of them is showing yellow/brown spots in some the top leaves, only showing on 1 plant but I’m nervous it’s leaf septoria?? The plant is in week 10 and is my last pic on week 10 diary. Does anyone know what this could be? :)
Week 10
Leaves. Color - Yellow
7y ago
3
3
Solved
ElBarto66
Gelbe Blätter
Muss ich mir Sorgen machen, wenn die unteren Blätter gelb werden? Die White Widdow Automatic ist jetzt in der 9. Woche.
Leaves. Color - Yellow
1y ago
1
1
Solved
WulfBlud
Older large fan leaves turning slightly pale but not serious yet
Lighter leaves and slight turning darker on older largest fan leaves. Not sure if I need some CalMag because I have mainly used only natural organic material that may not have that available
Week 5
Leaves. Color - Pale
3y ago
6
Solved
thenewdude
my biggest-plant is going yellow in the center, is that a deficiency or normal? I was going to give it the first feed of fish mix tomorrow with 125 ml of water
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
2
3
Solved
TCH0808
Fine-Tuning Nitrogen Understanding (Deficiency or Toxicity) -- Suspected deficiency, so how do I adjust Fox Farm nutes? Increase ALL 3 nutes to 3/4 dose?
Initial inter-vein yellowing, followed by whole leaf yellowing. Minor leaf stem reddening. Older growth. Normal for flower stage (I believe), but too early for normal and rapid discoloration (week 6). This makes me believe it's a nitrogen deficiency, amplified by SLIGHT overwater
Leaves. Color - Yellow
5y ago
1
2
Solved
SupportiveMango
What do these yellow markings on the leave tips mean?
What do these yellow tips on the leaves mean? Are my lights to close? Looks like light burn to me and have adjusted the lights up 10cm for now. Still wanted to make sure since I thought they need more lights during flower. Thanks heaps
Week 6
Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
2
2
Solved
NicoKh
bad leaf
not several issues till 1st day of 4th week of flowering appear just two leafs of two different plants look like this: so i think its a exces but not sure
Week 8
Leaves. Color - Yellow
5y ago
1
1
Solved
RockSta83
Seedling, light green edges of leaves
Hi Community, Can you guys have a look at my seedlings and if I should worry about the light green edges of my leaves? Thx
Week 2
Leaves. Color - Yellow
1y ago
2
2
Solved
Collinsy74
Leafs are pale green with brown spots on
Can someone please help me with the deficiency or toxicity of this please, leaves are light green aswell 2nd week into flower. Many thanks growmies 😀👍✌️.
Leaves. Color - Pale
4y ago
1
3
Solved
M1gas
To leafs are starting to get some yellow areas and dry, i dont know what is this and im trying to solve it, somebody know what could this be?
Week 5
Leaves. Edges burnt
Leaves. Color - Yellow
2y ago
13
3
Solved
Popeofdope
What can i buy to help these plants
What can i buy to help this plant get better. I am in the beginning of flower and one seems to have a calcium deficiency or nitrogen. Ones stupid and the other 2 are okish
Leaves. Twisted
Leaves. Color - Yellow
5y ago
4
Solved
jokgga
Defoliate dead leaves during early flowering?
Seeing some leaves dying at the bottom. I have been lightly defoliating; however, being careful as I do not want stunt during flowering? Should I not defoliate at this point?
Week 7
Leaves. Color - Yellow
Techniques. Defoliation
5y ago
3
3
Solved
Peter420
Leaf coloring and dots
Hey guys, what do you say about the leaves of the plants? I'm starting to get worried because it's affecting more and more leaves of the plant
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
1y ago
1
1
Solved
jbirdstheword
Browning spots after H202 rinse.
Hey guys! My first dwc and I’m having an issue. So after about a week my water was cloudy. I rinsed and washed the bucket, fixed the area where light was getting in. Then I rinsed my cube and plant with H202 3%, 1/3 to 2/3 water. Changed out nutes but now look like this. ?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
2
3
Solved
TheeLemon
Yellow/brown leaves
Noticed a brown/yellow colour starting to appear on my leaves. I don't think it's from the light being too close, so most likely too much/not enough nutrients. Any ideas?
Week 9
Leaves. Color - Yellow
3y ago
3
Solved
Khmma46511
Now what? Help me please!
WTF! what now? Got neem oil sprayed it on my leaves to get rid of the annoying spider mites, now this... leaves yellowing, slight brown tips, curling. I have an idea but not 100% sure n how do i fix it. Is it a few different things or just one? I'm getting irritated. Week 11
Week 10
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
5y ago
4
Solved
CheckThoseTrichs
Lower leaves drying up upper growth yellowing
Lower leaves starting to dry and upper growth yellowing. DWC, pH 5.9 and 600ppm. M-G-B series nutes.
Week 3
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
3