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Back to Grow Questions
Leaf Discoloration
MisterPandaBear
started grow question 6y ago
What is causing this discoloration pattern?
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Week 12
Leaves. Color · Yellow
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Answer
MangoDudu
answered grow question 6y ago
It’s 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
craudiaoDaMassa
Slow-Growing Plants with Pale Leaves Turning Yellow - Need Advice!
Hey friends, I need your help. My two plants, over a month old, are only 5 cm tall, with very pale green leaves. The temperature has been normal for three weeks, but the lower leaves are turning yellow. Any ideas? Check my profile for photos!
Leaves. Color · Yellow
Plant. Too short
2y ago
1
6
Solved
GracelessGardens
Yellow lines on 2 leaves
Any clue what this is? About to be week 6 and in flower. I'm thinking the start of nute burn? I gave it bloom boost in the last 3 waterings in less and less amounts. let the soil get very dry before watering with plain 6.2 pH water. Any input is appreciated
Week 5
Leaves. Color · Yellow
4y ago
1
8
Solved
PootPoot
Start on nutes?
Should I start a low dose of nutrients? Looks a little yellow in the middle. Does it need a little more nitrogen?
Week 2
Leaves. Color · Yellow
2y ago
2
2
Solved
joxsc
Please help identify my Problem: Yellowing leaves with veins showing and some necrosis spots in third week of flower
The odd thing is that only some leaves in the middle of the plant are affected. My thoughts were Nitrogen or Manganese deficiency or maybe light burn (why in the mid of the plant tho?)? I feed Biobizz Bloom, Grow and TopMax, no Problems until now.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
2y ago
2
2
Solved
KushManF
Leaves are yellowing
Leaves are going a yellow and brown colour. Not sure what is going on? Any advice?
Week 9
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
1
Solved
romi27
Burnt edges / yellowing
What are all these burnt edges from? One of the burnt leaves is from the perimeter, so I'm not sure how it could be receiving enough light to burn. I also have a small amount of yellowing towards the bottom. That's normal during flowering if the low-light leaves die, right? Thx
Week 7
Buds. Not fattening
Leaves. Edges burnt
Leaves. Color · Yellow
5y ago
1
2
Solved
Seratram
Scared of bud rot
So my last harvest last week had bud rot and I noticed my Royal jack has a lot of yellow leaves but I think she still needs at least one more week to grow. Could this be bud rot even if I don't see any other signs? Should I do an early harvest just to be safe?
Leaves. Color · Yellow
6y ago
2
2
Solved
Maskedcucumber
Roots getting brown
My Ph probe didn't work, PH was at least more than 0.30 (maybe 0.60) than displayed. As a result they had multiple chlorosis, now septoria leaf spots and possible Pythium since the roots are getting brown. What would you do to save the crop ? Adding mycorrhizae? Thx!
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Roots. Color · Brown
5y ago
2
1
Solved
Don1daz
Does anyone answer questions on here Anyon know what's going on with my zkittles auto from fast buds started yellowing on all leaves please help
Leaves. Color · Yellow
Other. Other
Plant. Other
6y ago
2
3
Solved
Ner0z
Pale lower growth
So my bottom leaves have gone completely pale but my new growth looks pretty good. They were transplanted yesterday but the leaves were already a light lime. Any idea why the first set of true leaves are this different. Promix hp/6.2ph in. Runoff 6.5. 1 25% str light feed done
Week 1
Leaves. Color · Yellow
Leaves. Color · Pale
6y ago
4
1
Solved
MediciGrade
Crispy Yellow Leaves
Inflow EC=1333 w/ PH=5.8 vs Runoff EC=658 w/ PH=6.0. Insufficient nutes due to light intensity? Perhaps my PH meter is inaccurate? Light is 42 inches from canopy or ~600 PPFD. RH 65%, Temp 80 F.
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
3
Solved
2x2growing
Light burn?
I am almost positive this is light burn but just want to confirm with you guys. Been experimenting with my light capabilities this grow. Optic 2’s 200 watt at 9 inches from canopy. End of week 7 of flower. Thank you. Ps I did burn them with a bit of potassium as well lol
Week 13
Leaves. Color · Yellow
5y ago
3
2
Solved
Bizio
Yellow leaves with grey/dark outline
I have some yellow leaves with grey/dark outline. Do you know the cause? Could be the humidity level too low? or K deficiency?! I'm not so sure about the last one. Help me guys please.
Week 11
Leaves. Color · Yellow
Leaves. Color · Black or grey
6y ago
2
3
Solved
Antony_mow
Светлеют листья lemon ak auto fastbuds
The leaves started to lighten, the LED lamp is 166w at 30 cm. Too much light? This is the first week of flowering.
Leaves. Color · Yellow
4y ago
1
4
Solved
Splifflicious
Yellow bottom leaves/brown spots on bottom leaves
Hi guys, So 4 or 5 bottom leaves of my 7thWeek autoflower looked like this and I ripped them off. Is that ok or did I harm her? Anyway, is that a Calcium def? Should I give her some CalMag? Could it be something else? Besides this, the general condition of the plant is good. Tx!
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Other
6y ago
3
Solved
psamu
Struggling with deficiencies (nutrient lockout?)
Hello everyone, I need your help. I've been growing 2 Green Gelato Auto from RQS but I've had some deficiencies for a while now. It's my second grow and it's the first time that I adjust the pH. They are in soil and I'm feeding them with Biobizz liquid nutes at a pH between 6-7.
Leaves. Curl up
Leaves. Dropping off
Leaves. Color · Yellow
5y ago
6
7
Solved
CaptainKirk1188
Fixing deficiency/toxicity/overwatering issues
How do I properly identify and remedy these issues with my babies?
Week 12
Leaves. Curl down
Leaves. Color · Yellow
Feeding. Deficiencies
4y ago
7
10
Solved
Straightcurve6
Yellowing tops 7th week auto super lemon haze
I have a 7 week old super lemon haze auto and the leaves are yellowing pretty sever from the middle of leaves on some of my tops and stunted growth, any ideas? Could it be lockout it's growing in Coco and is my first grow. Thanks in advance for any help.
Leaves. Color · Yellow
6y ago
1
1
Solved
NatureBoyNeo
Potassium deficiency?
My Auto 1 is showing some yellowing and brown tips on the leafs .. Can this be potassium deficiency ?
Week 12
Leaves. Edges burnt
Leaves. Color · Yellow
6y ago
2
2
Solved
GooeyGuy
Bright Green new growth? Is Co2 to blame?
New growth is very bright green. Just introduced an in-line UV filter to help combat and bacteria in system. Also just turned on the Co2 system and got it up to 850ppm. Why is new growth so bright green? Could Co2 do this?
Week 5
Leaves. Color · Yellow
4y ago
1
3