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Back to Grow Questions
Brown patches
Chilipadi
started grow question 4y ago
Brown patches starting to appear on older fan leaves only. Calmag?
Solved
Leaves. Color - Dark-brown
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SlowpokeFuegobud
answered grow question 4y ago
Hi! You probably want to check on the pH of your drain at first.. :) If it's too low, there could be lots of deficiency signs but caused by low pH. All the best!!
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Selected By The Grower
jeri10831
answered grow question 4y ago
When mine did that, it was cal-mag, but mine were hydroponic
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Mikewithgreenthumbs420
answered grow question 4y ago
Check this site out growweedeasy.com go under plant problems this should help you out
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Similar Grow Questions
Solved
balansa
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Week 8
Leaves. Color - Dark-brown
7y ago
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Leaves. Edges burnt
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3y ago
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TripleCcannabis
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This little girl isnt doing great. Shes developed browning around the edges of her leaves. Whats going on?
Week 1
Leaves. Color - Dark-brown
5y ago
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Solved
Sitej
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Dots began to appear on the leaves and the tips began to curl upward, I water them with fertilizers every day, the output is always 100 ppm less than the input, what could it be?
Week 7
Leaves. Color - Dark-brown
2y ago
4
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Solved
Iwanteatgelato
Brown little spots on leaves
Hi, I went on vacation for 4 days, the ec went from 1.2 to 0.5 and many small dots appeared on a lot of leaves. Do you think it's due to that ? The ph went from 6.2 to 6.4 but I don't think that's it... Thank you for your answer :D Peace
Week 7
Leaves. Color - Dark-brown
5y ago
1
3
Solved
Misanthrope
Dry brittle leaves
Discoloured older leaves curling up at the edges and turning dry and brittle. I think my problem is over or under watering. I've been very careful to avoid overwatering so I'm leaning towards the latter but what I've read online suggests dry/brittle means overwatering. Thoughts?
Week 4
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
3
4
Solved
GoGscrash
What is wrong:/
please advise me what shortage or surplus could be
Leaves. Color - Dark-brown
4y ago
1
3
Solved
Faust1a
Deficit
Hi guys please i would like to advise this phenomenon on the leaves it's in a few places on the vents you don't know what it could be? I will be happy for any advice.
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Other
5y ago
2
2
Solved
Bruce_Leroy1
Has anyone had one single branch effected by some sort of deficiency? I have it pictured in the photos for week 10. Any idea what would cause this?
Week 10
Leaves. Color - Dark-brown
7y ago
3
3
Solved
ZipCap
Which deseas did my plant have?
One of the plants shows an illness. What can it be? I had previously sprayed the plants with water.
Leaves. Color - Dark-brown
5y ago
1
Solved
idkman1337
plant leaves color change and dots
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Leaves. Color - Dark-brown
3y ago
1
2
Solved
EirikBloodAxe
Stress or deficiency?
Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency? Northern lights auto, 8-9 weeks. Canna Coco Nutrients.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Wimpy
Brown spots watering in coco multiple times a day
Seeing brown spots on the leaves. Assuming it's a calcium deficiency. Added another ml/gal of Cal-Mag for the daily feeding. Besides that, what else could it be? Also, at what point do you water plants in coco twice a day?
Week 7
Leaves. Color - Dark-brown
5y ago
4
2
Solved
SirSmokeALot333
Help what's this
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Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
4
Solved
paliastomi
Leaves developed strange textures, How to fix it?
So it's Day 45th Today (7th Week) and Pearl developed some brown/orange/yellowish textures on it's leaves which you can see in the pictures. What's the cause and how do I fix it? 😭 Also lower 2 nodes lost coloration and are now yellowish, is it because of not enough sunlight?
Week 7
Leaves. Color - Dark-brown
5y ago
3
3
Solved
Cannapprentice
Burned upper leaf edges
Hi! Dark spots appeared on some upper leaves overnight. I don't think this is the cause, but I did a pretty heavy defoliation the day before. the spots only affects leaf margins and makes the tips curl up. The spots are brown, burned and slightly purplish. what could this be?
Week 5
Leaves. Color - Dark-brown
5y ago
2
Solved
RaS_Audio
I think my plants are suffering a Phosphorus deficiency due to lockout due to low ph of soil. My first flush only helped for a while. As soon as the medium gets too dry damage resumes. I went to check on them yesterday and the amount of damage they took in 24 hours was pretty bad
Week 6
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Dark-brown
5y ago
3
5
Solved
Komar85
Dos si dos nutrient ?
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Leaves. Color - Dark-brown
5y ago
1
1
Solved
odrex
What would be the cause of bronzed/rust spots on leaves?
Dual strain pheno hunt. One strain is experiencing bronzed/rust spots. What could be the cause? No pests/eggs to see. Assuming deficiency Soil: Gaia Green Living Soil amending with 3 TBSP/g 4-4-4, 25% worm castings and 4 TBSP/g wollastonite Water: 80 mL daily
Leaves. Color - Dark-brown
3y ago
1
2
Solved
docpayce
Is this fungus infection or calcium deficiency?
Plant seems fine overall but shows brown spots on some leaves (new and old). Week 4 bloom in soil. 3l rain water pH adapted + CalMag to 250 µS/cm. Crazy Hills fert. twice a week (EC 1600 µS/cm). Water pH 5.0, drain pH 7.4, drain EC 1400 ... 1500 µS/cm.
Leaves. Color - Dark-brown
1y ago
1
1