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Back to Grow Questions
Folhas pontos de ferrugem
Diariesweed
started grow question 5y ago
Alguém sabe dizer oque se passa??
Solved
Leaves. Color - Dark-brown
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deeunit1
answered grow question 5y ago
9 times out of 10 this is due to lack of Calcium.
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Selected By The Grower
Mr_Weeds_Autos
answered grow question 5y ago
There's no doubt in my mind that this is a Calcium Deficiency, which can easily be fixed with a dose of Cal-Mag, but the damaged leaves aren't going to get better so you might want to remove them.
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Similar Grow Questions
Solved
Trickotreat47
Black spots on leaves
So I have those black spots on leaves on top of the canopy of my plants. Can someone please explain what are those and how can I treat it? Also the edges of the leaves on top of the canopy are brown and crispy.
Leaves. Color - Dark-brown
2y ago
1
1
Solved
Lapolda
Brown spots on the leaves
Hello, everyone. After replanting, this appeared on some of my flowers. I think it's probably stress after replanting, but I'd rather ask you more experienced ones. Thank you in advance for the advice 🙂
Leaves. Color - Dark-brown
4y ago
1
5
Solved
TripleCcannabis
Seedling Curling up and browning
Neither one of my new seedlings seem to be doing very well. This one isnt as brown as the other but its leaves are starting to curl. There still ridged but are curling up.
Week 1
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
1
Solved
Growjardin
Curling leaves and browny patches
Leaves curling down after 3 hours of light on so far, in coco soil, airpots, been watering once a day feeding once a week. Brown patches too, thinking up the feed or over water as was sitting in water in the pot saucers
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
2
Solved
TiRobotProds
Tâches brunâtre
Tache brunâtre sur les feuilles du bas de la plante qu'arrive-t-il a cette dame?
Leaves. Color - Dark-brown
4y ago
2
Solved
penthausgrow
Help diagnose hydroponic plants! Too much light/heat? Nutrient issue?
The plant's leaves on the right are wilting and drying out, while the leaves on the left are spiking. Just did a nutrient/water change but it didn't help, and it looks like growth is being stunted on the right plant. Humidity has been around 45-55 rh and temp 70-80F
Leaves. Curl up
Leaves. Color - Dark-brown
Plant. Wilting
6y ago
4
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
Needweed
Nitrogen toxicity? Or calmag deficiency.
Calmag added previous feeding 1 ml for 3L water. My plants just started to preflower and added 3L water for 3 plants 3ml grow, 2ml heaven, 3ml topmaxx, 3ml bloom That was my last schedule. I feed with every watering 2-3 times a week. Most damaged plant is Northern Lights Auto RQ
Leaves. Color - Dark-brown
3y ago
2
Solved
livetogrowgrowtolive
What kind of deficiency is that? pls help
Week 5
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Misanthrope
Leaf damage/discolouration
The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?
Week 11
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
2
2
Solved
Tiagorchaves
Brown spots on leaves
This brown spot showed up in some leaves. I've cut them. But some more showed up next day. Is this any micro nuts def or a fungus?
Week 4
Leaves. Color - Dark-brown
5y ago
2
4
Solved
AS420
Brown spot
On only one of my plants there is a brown spot which I have no idea where it can come from. I didn't give too much fertilizer and I regulate my ph between 6 and 6.5. Some idea?
Week 2
Leaves. Color - Dark-brown
3y ago
3
3
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
CannaKrops
Possible deficiency or calcium needed?
Please help me figure this out! Sour Kush Auto, 3 weeks. No nutes yet, Ocean Forest soil. Other 3 strains, same age, no problems. Bottom leaves showed signs first, then next set showed. Deficiency or soil to rich? Thanks all! Ph 6.5
Leaves. Color - Dark-brown
4y ago
2
2
Solved
Greenlady
What happend? I just started feeding them yesterday with this, but the others are just fine.. Did i burn it? What should i do?
Leaves. Color - Dark-brown
6y ago
4
Solved
Newfie420CB
Having a problem the leaves seem to be rusting out. I had a spider problem in week 5 and this plant was affected the most by the pesticide i used. Translate
Week 11
Leaves. Color - Dark-brown
6y ago
2
3
Solved
Young_agronomist
Что происходит с листьями ? Подскажите пожалуйста 🙏
Leaves. Color - Dark-brown
3y ago
4
3
Solved
Kagonisss
leaves problem
hi can i have a litthe help my gorrilla 1 have a problem with the lower leaves it curl up and turn like brownish thank u he have 1/2 week ago to harvest
Week 13
Leaves. Color - Dark-brown
5y ago
4
3
Solved
ExoticGrower
Weird leaf problem?
My plant (Exodus cheese) has been recovering from a nutrient deficiency but I noticed the leaves are turning brown in the middle. Why is this happening?
Leaves. Veins - yellow between
Leaves. Color - Dark-brown
4y ago
2
2
Solved
Fordsie
Phosphorus def in veg?
Phosphorus deficiency in wk 4 of veg? I noticed a few small discolored blotches on lower leaves 2 days ago and today it is a lot worse! Use flora trio, and 2 other plants in this run are under same conditions with same nutes. Could this be a pH issue? PH has been consistently ~6.
Leaves. Curl up
Leaves. Twisted
Leaves. Color - Dark-brown
5y ago
1
2