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Back to Grow Questions
Leaf Discoloration
MisterPandaBear
started grow question 5y ago
What is causing this discoloration pattern?
Open
Week 12
Leaves. Color - Yellow
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Answer
MangoDudu
answered grow question 5y ago
Itâs like a micronutrient def, Zn causes the necrosis on tips of the leaves in a immobile way. Maybe combined with Mn that causes that one in the middle of the leaf. Are u sure to give them enough calmag?
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Similar Grow Questions
Solved
Grrrower
Yellow leaves
the leaves below are starting to turn yellow and curl âčïž I'm continuing to give 5 ml / l of fertilizer for flowering and now it should also have more light available since I moved the other two small ones to the other growbox I don't really know what's going on ... should I do a root wash?
Week 6
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
1
2
Solved
BLAZED
Older leaves are yellowing, brown/red rusty spots, dying tissue, red stems.
Older leaves have brown/red rusty spots and looks like dying tissue in between the veins. Burnt tips, and yellowing leaves. The soil was really dry and my PH meter was 0.4 too high. I gave each plant 3L of water with EC: 0.0 PH: 6.4 to check runoff. Runoff was PH: 6.1 EC: 0.8
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Stem - Red or purple
2y ago
3
3
Solved
the_canna_scientist
Fast-growers starting to show issues.
Got some issues on these fast growers. I've been treating it as a cal-mag deficiency, however I've been feeding calmag for two weeks and its only getting worse it seems. Any thoughts? PH is 6.0-6.3, PPM 444 feed, RH 47-50%, Temp 77-81f.
Week 5
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
3
2
Solved
Sun_Sweeds145
I'm thinking that there is a problem with yellow leaves.
I felt that the newly sprouted leaves just began to turn green and yellow. Is it a nutrient deficiency or ph? Cause , I only feed her with water and nutrient-dense water.đ
Week 1
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
2
2
Solved
MfPacMan
No Idea what to do to help...
Still Having an issue with 1 of the 5. Why is this one look and growing this way? Other 4 seem to be doing fine. Plants are all in FFOF soil Ive Only Feed them Small Dose OF cal Mag and Fox Farm Grow once. FIrst 2 photos are of the struggling auto. 3rd is the one good one
Week 3
Leaves. Color - Yellow
Plant. Too short
Plant. Other
5y ago
1
1
Solved
aDriftwoodKing
Yellow leaf with brown spots?
Plant has only 1 leaf like this, and the opposite fan leaf appears normal. Another plant has a similar leaf like this but with less spots, and one yellow or bleach spot. But only 1 leaf on each plant. My latest diary entry has more info, any help appreciated.
Week 4
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
2y ago
6
5
Solved
Jake_camino
Im having a hard time indentifying the defficiency here. Anyone know what it is? Its nothing major though. i run at 1.12EC. GHE flora 3 Part +calmag. I alternate the pH of my RO water at 5.8-6.2
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
2
Solved
JERgarden
What kind of deficiency?
Hi growers. Is this a nitrogen deficiency? Or Could be a zinc or magnesium deficiency? Currently at week 6 of flowering and givining to her a home-made bat guano humic extract. Thanks in advance.
Week 13
Leaves. Color - Yellow
6y ago
3
3
Solved
SaganSky
Remove fan leaves or leave it be. 27 days old Bubble kush auto
Hey folks I'm in desperately need of some advice, first time grower here. She is about 27 days old now and started to preflower when 3 weeks old, isn't that early ? Also should I remove any fan leaves or just leave her be. since its starting to change color. please advice. Tnx
Week 3
Leaves. Color - Yellow
6y ago
6
3
Solved
KISSGrowing
Lower leaves too pale or yellowing?
I am noticing the lower leaves of my Royal Critical Automatic to be much more pale green than the top of the plant. Is this a nutrient/light/watering/lst stress problem if at all? First Grow. Started balcony, moved to tent D23. SF-1000 light, 100% at ~ 55cm from canopy.
Week 4
Leaves. Color - Yellow
Techniques. LST
1y ago
2
2
Solved
TioRandy
What is this yellow dot?
Everything was nice until I watered my plants properly for the first time. Today I found this on my leaf...
Leaves. Color - Yellow
2y ago
2
4
Solved
sir_root
Light burn or nutrient burn?
I have noticed that the tips of the leaves are yellowing and curling a bit. I moved the lights up 2 days ago and I honestly don't remember if this was happening before or not. It could be nutrient burn too, since I have increased the watering schedule, they are thirsty. While
Week 11
Leaves. Tips - Burnt
Leaves. Color - Yellow
2d ago
6
6
Solved
XanHalen
Yellowing⊠why, N, maybe MagâŠ.đ
1/4 plants yellowing itâs the biggest and is the only one that fell victim to a topping in veg, N def? The interveinal stuff is making me think magnesium too? What yâall thinkâŠ
Week 7
Leaves. Color - Yellow
3mo ago
2
7
Solved
VikingFloh420
Proplems with leaves
hi i got a question my plants show yellow leaves or damaged tips anyone knows whats going on? Lamp ts-1000 150w on 45% in the 4 week and only 2 feedings till now
Leaves. Tips - Burnt
Leaves. Color - Yellow
10mo ago
4
5
Solved
MinorMonster
leaf colour
Hi everyone. Recently i found two or three leafes changing colours and looking bad. I would be happy to hear your suggestions, what deficiancy is that? Its only on the leafes at the bottom of the plant. Thanks in advance Sorry for my english, deutsch geht auch
Week 7
Leaves. Color - Yellow
1y ago
9
3
Solved
Smile420
Leaves are lemon
Leaves are lemon colored after feeding. I normally give 900 PPM 6.3 PH. Previously I was missing Mg, so I put Cal-mag every time I gave water. Is there too much Cal-mag? Leaves are paper thin for only 1 day. Help me please. thanks for all the answers the 4th picture is 1 day be
Leaves. Color - Yellow
3y ago
1
Solved
Trichome_threshold
Magnesium nutrient lock out, triggered by too much potassium ?
@Burmese Thank you so much for your help. đđ I think it was a magnesium nutrient lock out, triggered by too much potassium. I sprayed some water with Epsom salt on the leaves and it looks like it is getting better. đđ
Week 4
Leaves. Color - Yellow
5y ago
4
5
Solved
Hix57
Jaunissement, excĂšs ou carence ?
Ma Amnesia prĂ©sente une dĂ©coloration rapide des feuilles en jaunes. Je pensais qu'elle avait un excĂšs car les pointes brĂ»lait J'ai effectuĂ© un rinçage et mis une alimentation douce pour repartir mais le problĂšme s'est aggravĂ© et a accĂ©lĂ©rer le jaunissement. Merci d'avance ! đ±
Week 10
Leaves. Color - Yellow
1y ago
3
5
Solved
shiptony
Could this be light stress? I dont think it nutrient burn, as I have been taking it very easy
Week 7
Leaves. Color - Yellow
4y ago
4
Solved
MoldyCrow
Age or Deficiency
I have noticed one of the girls fan leaves have all started turning yellow and drooping. It looks like they are turning from tip to stem and some of the smaller leaves have also started to turn. Is this due to age or a deficiency of some kind?
Week 7
Leaves. Color - Yellow
Leaves. Color - Red or pink
5y ago
2
4