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Back to Grow Questions
Have brown spots on leaves and get it to stop!
BeeZBudZ
started grow question 5y ago
I can not figure out what this is I have tried treating for calcium deficiency however I can’t seem to shake it.
Solved
Leaves. Color · Dark-brown
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KushGANG
answered grow question 5y ago
Hello it seems you have calmag deficience. How do you try to correct it. You can use epsom salt which is the best for this. You can mix it in water and mist your plant for a quicker effect. Good luck. Bye
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Selected By The Grower
Chow_13
answered grow question 5y ago
could be excess P and K. they can lockout calcium. hard to tell without any details
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Similar Grow Questions
Solved
TheUk420Show
what do you guys think this is ?
Hi Guys Sorry to keep bothering you all but please see the pics the leaves are curling downwards and going this colour. temps are high at the moment but seems like an overfeed to me. Curruntly flushing with just 5.8 water for 5 days then will re introduce feed.
Week 12
Leaves. Color · Dark-brown
6y ago
1
7
Solved
Livinit2019
What do you think is causing the spotting, leaf curling, and stunted growth in plant #1? My money is on light burn and/or PH issue. I have a PH control kit I've been using to treat the water, but do you think just treating the water is enough? Using FoxFarm HF soil, no nutes yet
Week 2
Leaves. Color · Dark-brown
7y ago
1
3
Solved
Soulgrow_x
What causes this
What is this ? Happened over night
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
4y ago
1
3
Solved
R4inBoW
Hello, I uploaded a new picture showing a problem. Does anyone know what the spots on the leaves are and what can be done about it?
Week 4
Leaves. Color · Dark-brown
5y ago
2
3
Solved
rkomaaa
Heat stress? Pls some opinion
Idk what's happening Probably heat stress because is all th time more then 30c
Leaves. Dropping off
Leaves. Color · Dark-brown
4y ago
3
6
Solved
ottoman
Brown spots on leaves
What seems to be the problem with my plant? The old leaves get brown spots whereas the newer ones have yellow edges. Is it a pH issue? Is there a fix to this? I grow in soil and the plant is 4-5 weeks old. Thanks for help!
Leaves. Color · Dark-brown
Feeding. Deficiencies
4y ago
1
Solved
CroqueMonsieur
Brown spots on leaves. Can this be because of too high pH of the water (7.5)?
Brown spots on leaves. Can this be because of too high pH of the water (7.5)?
Week 2
Leaves. Color · Dark-brown
6y ago
5
2
Solved
jmehl
I have 2 pictures of leaves with brown spots almost looks like it received too much light. Is this a result of too much light or perhaps Calcium deficiency?
Week 2
Leaves. Color · Dark-brown
8y ago
1
1
Solved
GrowerNL
Purple stems and brown spots
Brown spot and a brown tip on another leaf also purple spots on my stems pH was 8 with watering i found out i forgot to lower the pH
Week 3
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
Plant. Other
6y ago
3
Solved
Smokeyboar
cal and mag canna coco
Leafs I think its cal and mag but unsure. If it was how do I correct it. Do I say flush with 10 20 liters and then give it 1 mill cal and mag per litrr all canna nutes I use
Leaves. Color · Dark-brown
6y ago
1
Solved
Tango_Hotel_Charlie
Brown spots
What is this? It's affecting newer growth, first or second set of fan leaves off thee top of the colas. Also, this drooping, is this stress from the light? This is the center of my tent, and would appear to only affect tallest colas of this plant.
Leaves. Curl down
Leaves. Color · Dark-brown
Setup. Lighting
6y ago
5
Solved
THERMICDESERT11
Brown ruts spot on the leaves
Growing organically with happy frog mixed with a super soil concentrate. I water them with spring bottle water, ph at 7.7. Recharge every 10 days. Top dress 2-2-2 dry amendments and I top dress in week 4 of flower with the super soil concentrate. My leaves has brown spots 🤦🏾
Leaves. Color · Dark-brown
5y ago
1
3
Solved
JABS420
Burnt and drying leaves
Any idea what I might have done wrong on the sick mothman maybe nutrient lock or overwatered? It was the only plant without drainage hole and stayed pretty soaked as I was out of town for 3 days. Any advice is appreciated!
Week 2
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color · Dark-brown
4y ago
3
3
Solved
MfPacMan
What’s up with my leaves!(aeroponics)
Not sure what’s going on here
Leaves. Color · Dark-brown
Leaves. Other
5y ago
2
Solved
FatalFarmer
Brown spots on one seedling
I noticed some small brown spots forming on one of my plants leaves, not sure what it is, maybe early sign of cal deficiency? The other plant looks nearly identical with out these spots, any advice helps although it could be too soon to tell what it is...
Week 2
Leaves. Color · Dark-brown
6y ago
3
3
Solved
Dragosani666
Top leaves turn dark and curl - What can I do?
I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago. Mid last week I started noticing some burn a the tips, so i dialed nutrients back again. By this weekend the tips of the leaves curled further and turned dark. The rest still looks a bit pale, but buds look good.
Week 7
Leaves. Curl up
Leaves. Color · Pale
Leaves. Color · Dark-brown
2y ago
4
3
Solved
JERgarden
Dark green leaves in meringue
Is my girl telling me that the flowering fertilizer is too nitrogen loaded? I´m using top bloom from top crop, feeding at 1.4-1.6 Ec, and since last week I started to follow the feed-water-water schedule. The NPK of this fertilizer is 4-8-8. Should I adjust the input EC?
Week 15
Leaves. Color · Dark-brown
Feeding. Schedule
7y ago
2
2
Solved
Ap0_DrX
I have this symptom, a pattern of rust spots happening on new leaves, I have checked medium PH, which is around 7.5. I think it is Boron Deficiency caused by The medium PH not being approximately 6.5. I need more suggestions, What do you guys think?
Week 10
Leaves. Color · Dark-brown
4y ago
1
2
Solved
Elendil
Too much nutes?
Is this from too much nutes ?
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
4
3
Solved
HYDROBEAT
Bruciatura da luce o fertilizzante ? (Dwc)
HELP! I would like to solve and find a valid explanation for these leaves that are burning, mainly on the main stem, which is the most exposed to light." I have also added a dose of nutrients since it is the last week of bloom. Does anyone have any idea💡? Thank you
Week 11
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
6y ago
4
6