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Back to Grow Questions
Leaf tip yellowing.
FreakyMilk
started grow question 5y ago
Help! Is this nutrient burn? Light stress? Starting to get some yellowing on leaf tips. Early Miss autoflower, week 2-3 of flowering.
Solved
Leaves. Veins - yellow between
Leaves. Color - Yellow
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Mz876
answered grow question 5y ago
This looks like it could be ph lockout . Try flushing your plant and see how she does
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Selected By The Grower
SlowpokeFuegobud
answered grow question 5y ago
Hi! Check on "tobacco mosaic virus". The yellowish stains could be signs of it. Good luck!! :)
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420Highlifecouple
answered grow question 5y ago
Looks great man!
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AndrewC
answered grow question 5y ago
Kind of looks like very weird Potassium excess. Could be a form of PH lockout.
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Similar Grow Questions
Solved
420cropper
Discolouration
Is this plant still healthy?? Starting to see the leaves change two tone? A yellow/light green colour and the veins too anyone give me some advice?
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
2
2
Solved
Untiedmymind
Burn or Nutrients? Tips of leaves lightening up
March 12th started seeing the tips of the leaves lighten a red a few things about the light distance so I separated it out to 25 in could this be resolved if anything else
Week 3
Leaves. Tips - Burnt
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
3
Solved
Smeags
pH flux? Nute deficiency?
Problems... Diary and question the same. There are def burnt tips everywhere and the leaf fans are going from the bottom up. What should be my next step in fixing the problem and if it's going to affect yeild?
Week 7
Leaves. Tips - Burnt
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
3
3
Solved
Mammoph
Leaves turning yellow
Does anyone know why some lower (new and olds leaves) start turning yellow ? I flush them like a week ago, it's probably due to a deffiency don't you think ? The baby leaf is almost all yellow, while the older one as some pattern
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
1
1
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
GrowingNBlowin
Help diagnose deficiency? Magnesium, Ph?
Magnesium deficiency? PH problem? Other? How should I go about fixing this? Overall the plant looks healthy but the lower/older leaves are starting to get some spots.. I want to figure this out before it spreads..
Week 4
Leaves. Wilting
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
1
Solved
supermegadjj
Leaves yellowing, purple stems, brown spots. HELP Please /first grow speed auto
Please help guys !!! Since yesterday ladies started to look less and less healthy. Leaves are yellowing, leaf stems are purple and generally it's progressing quite fast. They got a flush with filtered ph water and I fed the with 1 l each oF very light mix. What should I do?
Week 7
Leaves. Veins - yellow between
Leaves. Color - Yellow
Plant. Stem - Red or purple
6y ago
3
3
Solved
JuanHaze_Arg
Exeso de luz? Bloqueo de nutrientes?
Los nuevos brotes de mi planta salen con un tono verde lima. En la zona que más luz hay parece empeorar, será un exeso de nutrientes/bloqueo o quema de luz? La lámpara está a unos 40 cm
Week 8
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
5
4
Solved
susina
weirs spots/lines
hello guys i've recently noticed some weird spots on my plant, she is two weeks today. I wasn't worried at the beginning but then I read about this tobacco virus that is like a death sentence for plants, and to me the signs look similar. please help
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
1
1
Solved
Aezur
Issues with 1 plant not the other (flowering)
2 plants treated identically. One has started to have serious yellowing / bronzing on new growth. The other is fine. Any advice welcomed. :)
Week 8
Leaves. Curl down
Leaves. Veins - yellow between
Leaves. Color - Yellow
2y ago
3
5
Solved
Chow_13
PH Fluctuations and/or Nutrient Issues?
I'm Running a Recirculating Deep Water Culture System( hydro). Had PH dropping dramatically a few days back but did a full water change and everything has stabilized. Just Flipped to a 12/12. Does it look like that was the issue or is it nutrient toxicity/deficiency. Or Stress?
Week 9
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
2
Solved
Misanthrope
Discolouration progressing
The first pic is from 2 days ago, now the yellow has turned to brown spots and is beginning to spread to others. I'm hoping it's an easily corrected nutrient imbalance, please help
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
1
4
Solved
elevensixty6
Still to early to tell? Noticed yesterday and have slightly worsened today. Not sure the issue but potentially magnesium? Getting close to top dress also.
Only on 1 of 3 plants so far. On older growth after getting dose of Recharge the other day. Maybe an N problem as I also use 484? Or mag? Using CalMag every other watering in RO at 150ppm as the soil has some cal and mag. Also getting close to top dress time maybe something else?
Week 4
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Other
4y ago
4
Solved
Ganja_Victoria_Aus
Yellow leaf and dot
Some of the leaf are yellow on the edge, also some have same yellow color as spot inside the leaf. I am feeding her too much?
Week 9
Leaves. Twisted
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
1
4
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
SirTucksAlot
Hey guys got some discolouration on the leaves! Can’t tell what it is! Cheers
Week 5
Leaves. Veins - yellow between
Leaves. Color - Yellow
5y ago
3
3
Solved
Royalgorillaxx
Yellowing on leaves
7 days old seedling. Trying to identify the problem. Please help me. Biobizz light mix on one and compo sampa soil on the other. I spray only with water just to keep thr soil a bit wet. Not an overwatering.
Leaves. Veins - yellow between
Leaves. Color - Yellow
Setup. Seedling
6y ago
2
2
Solved
Moondogz
Suspected Nitrogen Deficiency
Noticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.
Leaves. Veins - yellow between
Leaves. Color - Yellow
Feeding. Deficiences
2y ago
2
2
Solved
Panda56
Yellow spots on leaves
Are the yellowing spots signs of Leaf Septoria? I'm assuming it's more of a nutrients issue but have never experienced LS and wanted to get some second opinions.
Week 4
Leaves. Veins - yellow between
Leaves. Color - Yellow
3y ago
1
1
Solved
MEGAtv
PLEASE HELP! See former question as well.
Continue to see deficency or burn in leaves. I have fed her only ph water for 2 weeks and it continues. I asked for help before, everyone just tells me what they think is wrong and not the reasons why. If you have an answer it would be appreciated to know your reasoning. Thanks🤘
Week 6
Leaves. Veins - yellow between
Leaves. Color - Yellow
4y ago
4
4