Threads is in beta — try the new feed
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Threads
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Leaves turning black and curling at tips
Vonp24
started grow question 6y ago
Need help!!
Open
Leaves. Color · Black or grey
likes
Answer
Shockolateman08
answered grow question 6y ago
Looks pretty normal for flower stage, not sure about seed genetics. Check the pH of the soil and stop feeding nutes if you are. Give a flush for the plants sake and have a pH around 6 👍👊
likes
Complain
Similar Grow Questions
Solved
DrBuffy
Darkening and curling of fan leaves
What is causing darkening and downwards curling of the fan leaves? Started a few days ago, concerned if I don't fix it now it will spread and stunt my plant
Week 6
Leaves. Curl down
Leaves. Color · Black or grey
Setup. Strain · Autoflowering
6y ago
1
Solved
organigrower69
Discoloration
Two of my leaves have serious discoloration coming from the middle of the leaf
Leaves. Color · Black or grey
6y ago
2
Solved
Chilipadi
Grey spots appearing on both sides of leaves on this seedling. Already receiving light feed grow+calmag. What could this be?
Leaves. Color · Black or grey
5y ago
2
2
Solved
U2malone
Bud leaves turned black
Top leaves turned brown overnight, That day I did come home to a disturbing temp off 31oC . It’s the black Mini leaves in buds that are worrying me more. lights came on accidentally for two hours so gave her 16hrs dark and back to 12/12 This may have contributed.
Week 18
Leaves. Color · Black or grey
6y ago
1
Solved
TupacFR
Old leaves , black spot
Hello , today i cutted some leaves lowest who were yellow , on the plants. these leaves do not have much light. but i found some black spots and i don't know if it's lack of sun and simply died ? Can i just cut them ? What do you think about that ?
… Show more
Week 9
Leaves. Color · Black or grey
6y ago
1
2
Solved
kenpachi42
ist das sclimm
Does anyone know about this and can tell me if it's bad? This is my first grow and only this plant has these spots on a few leaves. Thanks in advance!
Leaves. Color · Black or grey
2y ago
5
3
Solved
kem0s
what is this?
1 plant has grey interveinal leaf spots and grey wilted edges. never seen this before. its only on top of the plant. my temps dropped to 17°C last night. light intensity is about 500ppfd. im guessing that it is a ph issue or overfeeding the other 2 plants are fine
Leaves. Twisted
Leaves. Color · Black or grey
9mo ago
4
7
Solved
Nachtjasmin
Schwarze Spitzen und Flecken nach Neemöl-/Kaliseifenbehandlung in der Dunkelphase. Schimmel? Dran lassen oder abschneiden? Bitte um Hilfe!
November 3: At the beginning of the dark phase, I applied a mix of 200ml water with 2ml neem oil, a splash of rapeseed oil, and 4ml potassium soap to the plant. The reason for this is an infestation of whiteflies. I didn't apply everything. Today I see black spots. Is that mold?
Week 3
Leaves. Color · Black or grey
Other. Mold
2y ago
4
6
Solved
Clout_god67
Organic peat control
I think my plant is being eaten but gnats and it looks like nutrient damage on it but I haven’t given ANY nutrients to it. What should I do? Can you diagnose my plant? Any remedies? I heard cayenne pepper can be used for a pesticide is there other things? Does Neem oil work well?
Leaves. Tips · Burnt
Leaves. Color · Yellow
Leaves. Color · Black or grey
6y ago
9
8
Solved
EvilGrower
Leaf discoloration - light and dark splotches
Hello! Any ideas as to why my leaves have splotches of discoloration? 😅 It appears that one leaf has light 💀 patches while the other leaf has dark. 👹 Thanks for your time! 🙌
Week 2
Leaves. Color · Yellow
Leaves. Color · Black or grey
6y ago
2
3
Solved
Royalgorillaxx
Leaves
Shall i cut them leaves?
Leaves. Color · Black or grey
Leaves. Other
6y ago
2
2
Solved
The_Wanderer
🌌👽 Harvest Alien Sparkle on auspicious day... or wait? 👽🌌
Harvest on the Winter Solstice? Or wait? What would you do? Wife says harvest. I say wait. What do you say?
Buds. Other
Leaves. Color · Black or grey
9mo ago
3
5
Solved
PolishFarmer
Coco grow problem
Hi Guys! I have issue in my grow. Girls are in 9th week from seed, 2nd week flowering. Coco substrat pH 5.8 EC 1.0-1.1 temp 23/24 humi 50%. Water EC 0.1 + calmag up to 0.2-0.3, Coco a/b up to above value 1.1-1.2/ph5,8. I believe that are deficiencies by too low ph for bloom stage
Leaves. Color · Black or grey
5y ago
1
2
Solved
Nocturnalgardener
Calcium Deff
im just wondering if you think this is a calcium deff?
Week 9
Leaves. Tips · Burnt
Leaves. Color · Black or grey
5y ago
2
1
Solved
DrJoint
PH issue ?
Hi guys! Could you please advise what is the problem with my Chempie and how to deal with this issue ?
Leaves. Color · Dark-brown
Leaves. Color · Black or grey
Plant. Stem · Red or purple
6y ago
3
2
Solved
ChefDan420
Today I noticed 🍄mushrooms popping up with GiSCele. Does that matter? Are they🍄poisonous to girlies? Don’t bother me,but I dunno🤔. I recently started using 🦇 bat guano and have a feeling that’s what encouraged- kinda cool if I see Smurfette sunbathing on 👙🆒👍🏼
Week 20
Leaves. Color · Black or grey
8y ago
1
2
Solved
Amboss
Deadly Leaves
Start Week 9 … is this a Problem or normal?
Leaves. Color · Black or grey
2y ago
1
Solved
einamio
First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)
I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static
Week 11
Leaves. Color · Dark-brown
Leaves. Color · Black or grey
Leaves. Other
2y ago
8
6
Solved
All_our_small_plants
Krankheit oder Schimmel?
She has produced her first two real leaves, which show a disease, but it could also be a fungal infection or mold affecting the plant. What do you think it is? Will she survive it?
Leaves. Tips · Die
Leaves. Color · Black or grey
1y ago
3
2
Solved
BudXs
Please see the 2 photos marked in the diary. Is this a classic PK burn? Did a feed with no MegaCrop, no cal-mag, just PK boost at diluted dosage. The coppering and yellowing has come sudden. Leaves are crispy where burnt. I hear its easy to burn with PK boost. Did I do that?
Week 13
Leaves. Color · Black or grey
7y ago
5
2