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Back to Grow Questions
Grey leaves
herbalistssword
started grow question 5y ago
Noticed some leaves getting a brown grey colour. Any idea what this is? Seems to only affect leaves on one branch
Solved
Week 19
Leaves. Color - Black or grey
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MangoDudu
answered grow question 5y ago
I think calcium deficiency next to the clorosis the leaf will start necrosis if is calcium def ✌️🏽
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Selected By The Grower
Similar Grow Questions
Solved
growbie
What deficiency it can be?
what deficiency it can be? its start from upper fun leaves
Leaves. Color - Black or grey
6y ago
2
2
Solved
Apolloo
Gray spot
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
1
Solved
ButtersStotch
Leaf Deficiency
What deficiency do you think this is?
Week 10
Leaves. Color - Black or grey
5y ago
4
4
Solved
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 .
Week 16
Leaves. Color - Black or grey
5y ago
1
Solved
Nachtjasmin
Schwarze Spitzen und Flecken nach Neemöl-/Kaliseifenbehandlung in der Dunkelphase. Schimmel? Dran lassen oder abschneiden? Bitte um Hilfe!
03. November: Zu Beginn der Dunkelphase, einen Mix aus 200ml Wasser mit 2ml Neemöl, ein Schuss Rapsöl und 4ml Kaliseife, auf die Pflanze aufgetragen. Grund dafür ist ein Befall mit weißer Fliege. Alles habe ich nicht aufgetragen. Heute sehe ich schwarze Flecken. Ist das Schimmel?
Week 3
Leaves. Color - Black or grey
Other. Mold
1y ago
4
6
Solved
Zark002
strangely growing leaves.
hi guys, after doing a defoliation and someone ties, some smaller branches from the bottom started to present this problem where the new growth should come, do you know what it could be and how to fix it?
Week 5
Leaves. Color - Black or grey
4y ago
3
Solved
BadGrower
I’ve never seen this before?!
Weird spots on leaf’s I’ve never seen before. Growing in coco with dry amendments and worm castings. Ph 6.7/6.5. Just gave some compost tea earlier today. And earlier this week some GH calmag because some of them are showing deficiencies for that. But what are these weird spots?
Leaves. Color - Black or grey
4y ago
5
Solved
Nocturnalgardener
Calcium Deff
im just wondering if you think this is a calcium deff?
Week 9
Leaves. Tips - Burnt
Leaves. Color - Black or grey
5y ago
2
1
Solved
casperdog
Flowering
hello Farmers! Is this normal? What is the reason and what is the solution? Tnx
Leaves. Color - Black or grey
1y ago
2
3
Solved
Clout_god67
Organic peat control
I think my plant is being eaten but gnats and it looks like nutrient damage on it but I haven’t given ANY nutrients to it. What should I do? Can you diagnose my plant? Any remedies? I heard cayenne pepper can be used for a pesticide is there other things? Does Neem oil work well?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Black or grey
5y ago
9
8
Solved
timbarin
What deficiency do you think I'm dealing with? These are old fan leafs.
Week 13
Leaves. Color - Black or grey
5y ago
4
2
Solved
Magic43562
Black growth seedling
One of my 10 day old purple punch seedlings has some black stuff on its new growth in the center. My older PP had it too and she’s big now and doesn’t have it anymore.Still is this anything to be concerned about?
Leaves. Color - Black or grey
6y ago
4
Solved
watson
Heat stress?
Heat stress and can it be saved? Had to go away for a couple days. Hottest days of the summer mid 90's, full sun, but well watered. This is my first ever grow (auto & outdoor) and I expected about 1 week left until harvest. Thanks
Leaves. Color - Black or grey
3y ago
1
2
Solved
Pav28
Light distance and power
I have lumatec Zeus pro 600w 2.9 Plan is to have it 50cm away 25% power 1st week veg 50% power rest of veg 75% power for 3 weeks of flower 100% power till the girls are finished In the 1st grow I’ve made mistake in the light management. Am I correct in my thinking this time?
Week 1
Leaves. Color - Black or grey
4y ago
1
4
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
Solved
einamio
First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)
I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static
Week 11
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Leaves. Other
10mo ago
8
6
Solved
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
4y ago
5
5
Solved
PurpGod
Nitrogen toxicity? Kind soil
How to treat nitrogen toxicity in roots organic soil with kind living soil in bottom 1/3 . only watered 6.0 purified water.. week 3-4 flower
Leaves. Curl down
Leaves. Color - Black or grey
Other. General questions
5y ago
2
3
Solved
FiFrElOt
Demande de diagnostic
Bonjour, je suis actuellement en semaine 7, mon problème dure depuis la semaine 5 et je n'arrive pas à l'identifier... Quelqu'un à déjà eu un problème comme celui la?
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Feeding. Deficiences
4y ago
2
2
Solved
Clutch
What leaf problem am I dealing with?
Fan leaves are turning black from the inside to outside. What's going on here?
Leaves. Color - Black or grey
4y ago
3
4