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Back to Grow Questions
Yellow spots on leaves
Panda56
started grow question 3y ago
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.
Solved
Leaves. Veins · Yellow between
Leaves. Color · Yellow
likes
GMSgrows
answered grow question 3y ago
Plants need a little more food
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Slurpy_Terpy
Slow growth yellow leaf edges what to do?
Plant growing slowly (but still growing) with weak growth tips and yellow edges on leaves with interveinal chlorosis. Looks like overwatering / magnesium deficiency to me. I use a weighing scale to know when to water, but started the plant in 25L pot so this might have caused it.
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Plant. Stem · Weak
5y ago
7
13
Solved
halluminaty
Leafs yellow, burn spot . Deficiencies or excès..?
The leafs on the blackberry and the gorilla cookie getting yellow with burn spots since few days. U can see exactly what I gave them before on my diairie. What do u think ? Without looking the feeds it look like N & calmag déficiences
Week 7
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
Solved
Aussiegreenthumb82
Yellow centre veins fan leaves
Yellowing of the inner vein of fan leaves only. Also sporadic yellowing and blemishes of whole fan leaves but only some, others fine nice and green. All bud leaves and buds don't appear affected. Is it just that she's nearing the end of her life cycle? Or over water/over nute?
Week 6
Leaves. Veins · Yellow between
Leaves. Color · Yellow
4y ago
2
3
Solved
PricklyPete
Mag Def?
Does the yellowing between the veins on these lower leaves look like a magnesium deficiency?
Week 13
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
2
3
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. Deficiencies
2y ago
2
2
Solved
DabNinja710
Nitrogen deficiency? What can I do to fix it?
My gorilla girl xl aut is getting a nitrogen deficiency. I think? Im using megacrop. about a ½teaspoon every watering. Also a 1/16tsp of bud explosion and sweet candy. Should I add more? I have the whole line of fox farm nutrients. Anything from there that would help?
Week 5
Leaves. Wilting
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
1
Solved
98greenlude
Nitrogen deficiency?
Bagseeds from medical JesusOG 2 gal pot with a lot of drainage Ff Ocean soil Ff nutes - big bloom, grow big, and Tiger Bloom Epsom salt for calmag 82daytime temp
… Show more
Leaves. Veins · Yellow between
Leaves. Color · Yellow
4y ago
6
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
Eagers
Help diagnosing deficiency
Can someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho Thanks
Leaves. Veins · Yellow between
Leaves. Color · Yellow
6y ago
1
1
Solved
soulsofarmony
Deficiences or overfeeding
In the last 3 days two of my plant seem to have some problems. First the oldest leaf turno Yellow and the become burnt. I Always check the ph solution and i Always feed them in this 2 weeks so i thought that maybe i overfeed them. I post the pics in the appropriate section.HELPLS
Week 2
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
5
4
Solved
Chronigmatic
Pattern on leaves
Got this pattern on a section of the girl. Not the whole plant any guess??
Week 8
Leaves. Veins · Yellow between
Leaves. Color · Yellow
Leaves. Other
6y ago
1
1
Solved
TonyTrichomes
I have a deficiency. Can you please check out my pics and give your advice? I thinks its a Magnesium deficiency, am I correct? Increase CalMag? Flush with extra water? Any tips would be helpful.
Week 11
Leaves. Veins · Yellow between
Leaves. Color · Yellow
7y ago
4
3
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
6y ago
1
Solved
Franzl
Whats wrong with her ? Clawing and yellow spots
Im a first Grower. Here some info: Location: Indoor, 60x60x180 Light: Mars Hydro 1000 Soil: BioBizz Light fertilizer: BioGrow GreenHouse pH: ~7,3
… Show more
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
5y ago
5
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
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
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
PaxIlluminare
Does anyone one know the deficiency causing the leaves to yellow in this fashion?
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
4y ago
1
1
Solved
Chitown_grower
They are on the older leaves and they keep getting that faded yellowing starting from the tips. The pH of the run off is 6.43 and they havent been fed a round of nutrients in a week! I thought it was a cal/mag def but they haven't bounced back after a dose. Help please!
Week 4
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
7y ago
2
1