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Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 6y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color - Yellow
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TimTheTerpMan
answered grow question 6y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
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Similar Grow Questions
Solved
TegridyF
Yellow and fragile leaves 2 week
Couple leaves yellowing and bit curved up. I suggest there can be the options: 1) magnesium deficiency; 2) nitrogen deficiency; 3) Light burn. For case it is magnesium deficiency I sprayed the leaves with magnesium sulfate (solution - 1g per 1 liter), but it won't help.
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
1
Solved
QueenNitha
What’s wrong
What’s wrong with my plant? The top leaves look spotty. Could it be the coco coir pot?
Leaves. Color - Yellow
6y ago
1
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Solved
MissGreenEyes
Seedling leaves are discolored and starting to curl
Not sure what the issue is here. You can see it evolving over the past few days (Sept 29th - Oct 2nd). The leaves are discolored, light, almost yellowish in color. And one is starting to curl. There are clear images of this in the post above. What's going on here? Thank you!
Leaves. Curl up
Leaves. Color - Yellow
5y ago
4
4
Solved
comet9000
Week 7 of 8 for Black Maple, leaves yellowing rapidly. Should I be concerned?
Hello, This is my first grow. I am in early week 7 and leaves are yellowing rapidly. The genetics state that the flowering period is 8 weeks. I have watered the plant 3x a week. pH 6, 3tsp of fox farm big bloom per gallon (1x week). I was going to flush soon, but I am not sure
Leaves. Curl up
Leaves. Color - Yellow
Setup. Strains - Photoperiod
4mo ago
1
3
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
N0fun
Hi everyone, This is my first grow. So, do i miss something important here? i do not use any method at all.. she is growing how she wants.. the only thing bad i can notice is the yellow leaves (older leaves)
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Week 7
Leaves. Color - Yellow
7y ago
1
1
Solved
Willyweed10
Excess or lack of nutrients?
the older leaves are not dark green but light green with burnt tips and sunburn spots. use of light mix plagron with bloom algae. 1.5 ml per half liter of water for two times a week and once only tap water.
Leaves. Color - Yellow
6y ago
1
1
Solved
JoshuaTreez
Is this light burn?
All my leaf tips are going yellow, even on the bud leaves. It does seem to be a bit worse towards the top of the plant. Is this light burn? I am using 2x 1000w philzon LEDs in a 3.5'x3.5' Tent and I had them at 10/10 brightness. I just reduced to 8/10. Thanks in advance
Leaves. Color - Yellow
5y ago
1
3
Solved
Sam_The_Herborist
Yellow dots on the leaves
Hi guys I need your opinion I noticed some yellow dots on some leaves of my plants and I wanted to know if it can be caused by too much light or too much nutrient Or maybe it's just normal and I'm just paranoid XD I circled the dots that I'm talking about
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Leaves. Color - Yellow
6y ago
1
2
Solved
Labbu
Light brown spots
What are these spots on lower leaves
Leaves. Color - Yellow
5y ago
2
3
Solved
Noahbear
Seedling needs help
I have a auto-flower seedling that is only 12 days old from the taproot being planted. Her leaves are droopy and yellow in the center. Any ideas out there? Does she need nutes?
Leaves. Wilting
Leaves. Color - Yellow
5y ago
3
3
Solved
Mattuston
yellow tips of leaves
According to tout, excess or nitrogen deficiency?
Week 13
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
1
1
Solved
Bush12
Autoflower fading on day 64
Hi all! Im on day 64 now and the plants fading is this correct? Any advice at all would be great if they are looking on track? What i should be preparing for? I have a scope to check trichs..do i check it on a bud or a sugar leaf? Thanks
Week 8
Leaves. Color - Yellow
7y ago
1
1
Solved
Goldbud
Yellow fan leaves
New issue starting week 5 of bloom. The lowest big fan-leaves are getting yellow and that very quickly. She got a organic Biotabs PK Booster compost tea 3 days ago. It looks to me she wants more Nitrogen. Should I add molasses? If so how much? Or is it another issue. PH is ok.
Week 9
Leaves. Color - Yellow
6y ago
2
2
Solved
Blvck75
Issue, please help
It seems like we have a magnesium deficiency here on our slow growing baby, the leaves are turning yellow, impacting her growing quite strong as i haven't seen much change on the plant since now 2 weeks. Any solution on how to fix this are welcome, thanks for the response
Leaves. Edges burnt
Leaves. Twisted
Leaves. Color - Yellow
3y ago
1
1
Solved
Dormando
Unknown Deficiency symptoms on leaves
Pics from old plant a few weeks in flowering started showing some deficiency symptoms on leaves. I could not diagnose the issue, but circling back to it so that I do not repeat the same mistake this time.
Week 8
Leaves. Tips - Burnt
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
1
7
Solved
Costosito
Hojas se amarillean o queman bordes
I've noticed for a few days that the leaves of the plant are turning yellow or looking like in the photo. I'm not sure if it could be some kind of deficiency or lack of nutrients since I haven't fed it more since the last time, and it's taken on a lighter color.
Week 14
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Chr0nus
Feeding
How often am I meant to feed and water my plants. I do water my plants every 3 days and after every three feeds I flush. Concerned as all the bottom leaves in my grow are turning yellow but the tops are okay. I do give them Calmag so I’m not sure what the issue is here.
Leaves. Color - Yellow
3y ago
5
3
Solved
anacleto
Nutrient deficiency
What kind of deficiency these leaves are showing? Can this be lack of nitrogen? I am using a lower amount of BioBizz Grow these days (1ml/L), passing to BioBizz Bloom and Top Max as they are in the middle of the flowering stage. In case, should I integrate with more BioBizz Grow?
Week 6
Leaves. Color - Yellow
6y ago
3
3
Solved
TerraDonc
Leaf discolouration. Nutrient deficiency?
Leaves are discoloured and clawed. Started about a week ago with yellowing of tips and clawing at top of the plants. Now lots of leaves are slowly changing colour. Thought it was nitrogen toxicity but my runoff is 330ppm. Are they deficient in nutrients?
Week 4
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
6y ago
1
2