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Back to Grow Questions
Have brown spots on leaves and get it to stop!
BeeZBudZ
started grow question 4y 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 4y 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 4y 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
Luke123
Leaf problems
Just started to have problems with my leafs 2nd week in flower . I know I had some calmag issues but thought I got on top of that, don't really want to be putting to much calmag in flower as mine is 4/0/0 Any knowledge is priceless thanks girls and guys
Leaves. Color - Dark-brown
5y ago
1
3
Solved
Chief_Leaf
Why are the leaves tips curling dying and brown marks appearing?
My Mac #1 showing brown spots/marks on leaves, with tips curling and dying yellow/brown - what is the problem? How do I fix this? She is in week 5 flower. Is it calcium deficiency? pH problem?
Leaves. Tips - Burnt
Leaves. Tips - Die
Leaves. Color - Dark-brown
1y ago
2
1
Solved
candyandy
Possible P Deficiency?
Hey everyone, hope all is well. I noticed these past few days some dark spots appearing on some of my higher leaves. From what I’ve read it looks like it could be a Phosphorus deficiency. Any ideas? It’s on two out of three plants of the same strain. All same feeding schedule.
Leaves. Color - Dark-brown
2y ago
1
2
Solved
NeverToxic
Handel es sich um Kalzium oder magnesium mangel oder ist das ein Pilz
Es handelt sich um Skywalker von dutch passion ist jetzt in der 3,5 Woche in der Blüte gedüngt wurde sie mit green house feeding grow zum Anfang und nach der zeit Umstellung habe ich bio bloom gedüngt nach Hersteller angaben erde von plagroon braune flecken seit 2Tagen überall
Leaves. Color - Dark-brown
1y ago
1
Solved
GrowmieDeLaStreet
Flushing don't seem to solve my lockout
It's been 6 days since I noticed the problem. first thought it was a deficiency but really is a lockout. I flushed 2 days ago but she keeps getting worse. Am I being impatient? I flushed with tap water pH 6-7 until the runoff was in the same range and haven't fed her for 4 day.
Week 9
Leaves. Color - Dark-brown
5y ago
1
7
Solved
handaman
Brown spots on tips of some leaves
4 leaves affected on only one plant. All plants are receiving same feeding and are from same clones. Based on photo and googling it looks awfully lot like P deficiency? I'm still in vegetation phase though. I'm feeding with Advanced Hydroponics Grow + Bloom + Micro based on chart
Week 6
Leaves. Color - Dark-brown
5y ago
2
Solved
Dillsnills
Leaves turning brown help should I trim off the leaves affected?
Need a lil help. What is causing the leaves to do this it's only on some of the bigger fan leaves? In week 8 of flowering, jus used pH water last 2 feedings, whatever defiecency it is what can I do about it and should I remove the leaves that have been affected? No bugs I checked
Leaves. Color - Dark-brown
5y ago
1
2
Solved
Boncoward
Brown spots and yellowing
What do you think this is? Nutrients deficiency or maybe soil ph. Happened overnight and the plants are a little dry but I just gave them water and nutrients. My ph tester has been broken so I’ve sorta been winging it with some ph strips.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3mo ago
2
4
Solved
Shazaaam
Wondering why the top half of my new stems are red and the bottom is green?
Week 2
Leaves. Color - Dark-brown
8y ago
4
4
Solved
grower_not_shower
What are these spots? I've tried every fix but nothing works.
https://imgur.com/a/smyIu86 What are these spots? I've tried Laser 2240 SC, Kumulus DF and Champ 77 WG and nothing works, the spots are still spreading.
Week 7
Leaves. Color - Dark-brown
3y ago
6
6
Solved
DJdaDon
Brown spots
Should I remove these leaves? I don't know what's going on.
Week 4
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
4y ago
7
6
Solved
Kjf_grows
Help, first time with autos
My ladies are 11 days old and I woke up to this. Last fed 2 days ago with a and b by coco at 50%, ph at 5.9 I have done a quick flush and the run off came out at 6.1 temps are a constant 25°c with a humidity of 60%. All plants are currently under a 400w mh bulb.
Leaves. Color - Dark-brown
4y ago
3
Solved
LEAFJE
Brown spot and crispy ends
Dear Growmies, My leaves, mostly the top fan leaves haves started to get brown and yellow spots. And even turn crispy to the point I can snap of the tips. I already increased Calmag from 0,5ML/Liter tot 0,75ml. I have been watering between Ph of 6,2 and 6,2. Any ideas ?
Week 7
Leaves. Tips - Die
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
4y ago
3
4
Solved
CollectiveSol123
How can I fatten my buds up..new LEDs soon..that will help..
Week 28
Leaves. Color - Dark-brown
6y ago
1
1
Solved
JKwonTheChef
Browning between leaf veins!
After my low humidity problem two days ago, she seems unhappy and the growth has basically stopped. I realize it should be slowing down at this third week but these brown, dry-looking areas are showing up between some of the leaves, the ones in the center being the worst. Thanks!
Week 10
Leaves. Color - Dark-brown
5y ago
2
2
Solved
eltiiocultiveta
Que problema puede ser?
Alguna carencia? Sobrefertilizacion? Estoy muy confundido y no se que hacer :(
Week 9
Leaves. Color - Dark-brown
5y ago
1
Solved
Professor_Daank
Is this Calcium Defic? What to do to fix?
Week 9 flower. Rust spots on leaves. Starts at top. This can only be calcium defic from ALL the research I've been doing. Can anyone chime in? I foiler spray a CalMag before lights out and I've added some more to the nute mix. 6.2 pH, runoff seems good.
Week 10
Leaves. Color - Dark-brown
5y ago
1
3
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
Basementgrow05
Cal mag ? Or just normal fall colors appearing ?
Noticed this one just one of my plants of of 3 they are all fed the same and watered the same what could it be ?
Week 8
Leaves. Color - Dark-brown
4y ago
6
Solved
CheckThoseTrichs
Cal Def in DWC?
Using RO water w/ Calnesium 100 ppm pH Perfect Micro 200 ppm pH Perfect Grow 100 ppm pH Perfect Bloom 100 ppm Total: 500 ppm pH 5.8 Res: 18-20 deg C Just moved feed up from 350-500ppm this week and started seeing issues on leaves, roots still seem fine to me.
Week 4
Leaves. Color - Dark-brown
5y ago
3
3