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Back to Grow Questions
Leaves have brown spots
Flyalivebeats
started grow question 4y ago
Any idea what these brown spots could be?
Solved
Leaves. Color - Dark-brown
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Roberts
answered grow question 4y ago
You are experiencing progressive potassium deficiency. Light nitrogen and heavy potassium are phosphorus in flowering. Good luck🌱
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Selected By The Grower
Coopmc
answered grow question 4y ago
You should find answered hear I sugest finding a feed scheadual and follow it
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Coopmc
answered grow question 4y ago
https://www.royalqueenseeds.com/blog-cannabis-nutrient-and-deficiency-table-n88
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Coopmc
answered grow question 4y ago
https://www.botanicare.com/faqs/can-i-foliar-spray-with-cal-mag-plus/
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Coopmc
answered grow question 4y ago
https://growace.com/blogs/learning-center/how-to-fix-nutrient-lockout
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Flyalivebeats
answered grow question 4y ago
So what should I do?
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Similar Grow Questions
Solved
guerilla
Calmag deficiency?
Hi all. Almost certain what this is. But just need reassurance please 🙂 I just need to confirm this can be fixed with calmag? 💚
Leaves. Edges burnt
Leaves. Color - Dark-brown
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4y ago
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Solved
zaMaurice
Moin, bei meiner Größen Pflanze fangen die Blätter an von außen gelb zu werden und braune Punkte zu bekommen. Ist das ein Zeichen von einer überdüngerung? Alle anderen Pflanzen haben dies nicht. Oder zu wenig?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
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elevensixty6
Brown Spots on Leaves
I've got some brown spots showing up on the Wedding Cake leaves, first thought it may be mold but it doesn't rub off and I sprayed both plants with neem oil about a week ago just in case. Could be CalMag deficient? I use RO water with about 150-200ppms in 3 liters once a day.
Week 5
Leaves. Color - Dark-brown
4y ago
5
4
Solved
Magic43562
Tips turning brown
Tips on 1st node turning brown, is this regular?
Leaves. Color - Dark-brown
5y ago
3
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Solved
Wexlo
Spots on leaves
Strain-dancehall 6 weeks old No Nutrients Ph 6.2-6.4 3 liters every other day New to growing. Out of 3 plants 2 are starting to get spots on leaves near the top. All 3 have discolored leaves at the bottom. Pics are numbered. If anymore info needed just ask
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
5
Solved
bubby
Hello guys... In second weak, on the first two leaves appear brawn spots, other leaves aren't affected, also other leaves are looking down.. .what is reason .. help me :) P.S sorry for my bad English ... Thank you.
Week 2
Leaves. Color - Dark-brown
6y ago
1
3
Solved
Jules216
Spots on leaves
Any ideas why these Brown spots appeared so quickly?
Leaves. Color - Dark-brown
2y ago
3
Solved
Mitch
Nutrient burn
How can I fix a nutrient burn on a seedling?
Leaves. Color - Dark-brown
5y ago
1
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Solved
BadGrower
Brown Rusty Dots
What are these brown dots on my plants? They are only on one of the plants, they have gotten a spray with Dr. Zymes Eliminator and had no effect, also did a mL of Cal Mag in its last water with no effect and getting worse. I’m not sure what this is and I can’t get it to go away!
Leaves. Color - Dark-brown
4y ago
2
3
Solved
WulfBlud
Too much light or other deficiency
Too much light or some other deficiency? I’ve been having some issues with yellowing leaves and some other issues with browning and wilting/curling which I thought was initially nutrient lock but what I noticed is all four plants were not stunted and continued to grow normally.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Wilting
3y ago
4
Solved
Werim
3th week of Veg. Nuts deficiency or burn? Might it be a root zone issue?
Hi. It's 2x reg fem Royal Runtz and 2x reg fem Special Queen #1 from RQS im using CannaAQUA nutrients + Cannazyme and Rhizo. PH is 5.6 EC 1.3-1.35 water temp 23°C on DWC system. Air temp 27.5°C hum.50%-60%.Light is from MarsHydro series FC-E 6500 730W on 80% and 1m above ladies.
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
5
Solved
Ikamulus
what is that?
these brown parts are mainly at the upper buds and the bud which are affected smell a little rotten. I checked for insects but there are none. Temperature is also normal as well as humidity. It only affects 1 of 4 plants.
Leaves. Color - Dark-brown
3y ago
1
1
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
JSanchezz
could this be due to the PH being too low?
I watered 3 days ago with PH 6.3 Ruoff was 6.0 today watered with PH 6.6 runoff was 6.1 Can the brown spots come from the wrong PH ? fertilizer is full BIO BIZZ CHEEMA, worm humus and mycoriza what would you recommend to do ?
Leaves. Color - Dark-brown
10mo ago
6
8
Solved
JesusChrist
Saw this first day of 12/12
Pretty sure this is just where I got nutrient solution on my plant yesterday when watering unless it's something else? I pulled these leaves off 1 plant when lights came on this morning. Every Plant looks 💯 great besides these 3 leaves, all from 1 plant rest of plant is great.
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
5y ago
1
1
Solved
electabruce420
Brown spots on leaves
What could be the cause of those brown spots ? pH has been over 7 because of organics fertilizers, could that be it ?
Week 9
Leaves. Color - Dark-brown
3y ago
2
2
Solved
towellie
Is this pH related?
Hello, mates! Anyone knows what this could be? Searching I found that it could be pH related. I use pH controller from ferts (pH perfect from advanced nutrients) since the beginning, so I think it's odd that it could be a pH issue. p.s. 3.5 weeks of flowering Thanks 🙏 🙏
Leaves. Color - Dark-brown
Leaves. Other
3y ago
3
3
Solved
Blueboy2019
Leafs rust
Leaf looks like got a bit of rust on it?? What can I do to stop this
Leaves. Color - Dark-brown
5y ago
1
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
Freedonia
Day 14. Since day 12 a brown spot has appeared on one of the leaves of the first node, spreading little by little. Because of the symptoms, I think it's septoria, so I've sprayed neem oil to see how it works for her. Someone knows what can it be?
Week 2
Leaves. Color - Dark-brown
7y ago
5
4