Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
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
jihun
started grow question 3y ago
Hi Guys. What do you think? What are the little grey points on leaves? Thx
Open
Leaves. Color - Black or grey
likes
Answer
G23hi
answered grow question 3y ago
Thrips
likes
Complain
Ctrellis90
answered grow question 3y ago
Pigment mutation if you don't have pests.
likes
Complain
AsNoriu
answered grow question 3y ago
Enter to google " dragonfli co uk thrips, open link, will find useful info. Growdiaries blocks links now. Aka anti spam ;))
likes
Complain
AsNoriu
answered grow question 3y ago
Guys already found whats wrong, i will offer my way, i go with natural predators. Find alternative in your country.
likes
Complain
Bonk202
answered grow question 3y ago
Look bit like thrip marks on lower leafs
1 like
Complain
YorkshireGardeneruk
answered grow question 3y ago
Yep definitely I see a few more once look 👀 very close watch under leaf 🍃 as well
3 likes
Complain
YorkshireGardeneruk
answered grow question 3y ago
Look very close to the left hand side they is a thrip on the small leaf top photo one to left of damaged leaf
3 likes
Complain
Similar Grow Questions
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
herbalistssword
Grey leaves
Noticed some leaves getting a brown grey colour. Any idea what this is? Seems to only affect leaves on one branch
Week 19
Leaves. Color - Black or grey
6y ago
1
Solved
ButtersStotch
Leaf Deficiency
What deficiency do you think this is?
Week 10
Leaves. Color - Black or grey
6y ago
4
4
Solved
watson
Heat stress?
Heat stress and can it be saved? Had to go away for a couple days. Hottest days of the summer mid 90's, full sun, but well watered. This is my first ever grow (auto & outdoor) and I expected about 1 week left until harvest. Thanks
Leaves. Color - Black or grey
4y ago
1
2
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 ? Thanks
Week 9
Leaves. Color - Black or grey
6y ago
1
2
Solved
Ner0z
Is this leaf septoria?
Here we go again. What am I looking at here? Is this leaf septoria? How should I tackle this one lol
Week 2
Leaves. Color - Black or grey
6y ago
4
3
Solved
Australianbuds
Leaves turning funny
Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf
Leaves. Color - Black or grey
2y ago
1
1
Solved
OneBakedWalrus
Black tips
One more. What's up here? Its happening to 2 plants but I've no idea why. No changes no stresses.looks like a nutrient problem. But if it is what is it and how do I fix it? I dont usually feed but if it will help ill get something.
Leaves. Color - Black or grey
6y ago
1
1
Solved
Ner0z
Black discolouration on leaves
Okay so the problems with the black spots continue only on one plant. I tried reducing nitrogen and increased calmag to 4ml/g. I defoliated the affected leaves and sprayed with baking soda mix. 3 days later they're appearing again. If I don't get this fixed soon im gonna lose her
Week 2
Leaves. Color - Black or grey
6y ago
2
3
Solved
m1kax
Leaves with Spots brown/yellow.
this is my 1st grow, they are autoflower and this is day 60. ec from last runoff was ok. ph was 5.95 maybe is too low, but im already give him high ph they start getting this stains week ago i change my light recently, and i got high humidity last week like 80%.
Leaves. Color - Black or grey
3y ago
1
1
Solved
Unkraut
Seedlings (week3) lower leaves look yellow/dry
Lower leaves look bad, some are yellow, some look dry and dead...
Week 3
Leaves. Color - Yellow
Leaves. Color - Black or grey
6y ago
1
3
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
Karalis89
Ciao amici, sapete dirmi cosa può essere? Devo preoccuparmi? Sembra stare bene ed è l unica foglia macchiata,può essere dovuta a dell' acqua per sbaglio caduta sopra ? Grazie
Week 4
Leaves. Color - Black or grey
4y ago
3
3
Solved
tangie
Yellow & brown spots in 2nd and 3rd week in coco-perlite nursery cup. What am I doing wrong? Fed until 20% runoff (extra), strained. Smth with roots?
2nd grow in 70/30 coco-perlite mix* & very similar issues w. yellow/brown spots in weeks 2-3, then stabilizes. *CalMag & pH buffered 6h @ 0.5mS, pH5.8, strained** & seed planted. Feed: W1: **Strained sol. + water 70/30, pH5.8 W2: AN M+G+B 1-1-1 + Simplex CalMag Plus 0.4mS Help
Week 2
Leaves. Edges burnt
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
2y ago
9
5
Solved
Royalgorillaxx
1st grow need help
Don't know what went wrong.as i said first grow. Leafs are curling down and they have a dark green color on the tips.. I can see a little yellow also.. Should i worry?what can i so to fix it
Week 1
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Color - Black or grey
6y ago
3
4
Solved
CreamOfTheCrop
Brown/Grey spots on the leaves
Hey, I hope this is my last question for this grow :P I've noticed some brown/grey spots on the yellowing leaves, what could they be, deficiencies or sunburn? I'm still feeding the plant with nutes, but the next watering will be a flush, so I didn't expect discoloring before that
Week 11
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
6y ago
1
1
Solved
hazaj
Dark leaves, clawing
So couple weeks ago my plant started turning into dark green colour . Using biobizz nutrients, using always 1/2 dosage, sometime even less in big pots. I though it was nitrogen toxicity. But not sure anymore. If anyone has idea what it could be? Using 0,5ml of their grow
Leaves. Color - Black or grey
2y ago
4
5
Solved
Kaiserschmarn
My seedling doesn't look so good.
This is my first coco grow so could be possible that I made a mistake. The other three seedlings are super healthy but this one has this weird thing with it's leaves. Somebody seen this before? I gave them some root juice and fertilizer before transplanting with ph between 5,5-6.
Leaves. Color - Black or grey
5y ago
2
3
Solved
Jovkimm
Hey brothers and sisters ! This is my first grow so IM little out of this but still to get some good results with latte yield (Im hoping) So my setup is -4quick ones 2x190w led panels from dutch passion (so they should ne pretty high quality i hope ! I would apreciate All help
Week 6
Leaves. Color - Black or grey
7y ago
1
Solved
Zuzuman
Mehrere Mängel
2. Grow mit Gorilla Cookie Autoflower Samen. Hinten links sehen die Mängel aus wie hinten rechts, denke Phosphor also laut Bildern und vorne ist so ziemlich vieles gemischt aber extrem. Der einzige Bud der richt wenn man ihn anfasst ist der von der hinten rechts die anderen nicht
Buds. Not fattening
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
1y ago
2