Start My Diary
Login
Sign Up
Login
Home
Diaries
Shorts
Questions
Contests
Growers
Strains
Breeders
Nutrients
Lights
Equipment
Blog
English
Espanól
Русский
Deutsch
ไทย
Login
Start My Diary
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Chat
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see
Privacy Policy
Accept
Grow Questions
Black spots on leaves
Black spots on leaves
Trickotreat47
started grow question 6 months ago
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.
Solved
Leaves. Color - Dark-brown
like
Organoman
answered grow question 6 months ago
The burnt tips are a nutrition/pH issue. The black blotches could be a fungal problem due to poor air exchange/high humidity.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
Cawabunga
Brown spots on lowest leaves
Hallo Freunde! Ich habe an den untersten Blättern meiner Pflanzen, Verfärbungen auf der Blattoberseite entdeckt. 😲 Ich vermute das etwas Überdüngung die Ursache ist. Week 3 Day 19 Wenn jemand die genaue Ursache und wie ich es behebe, erklären könnte? Vielen Dank 😗 Cawabunga 💤
Week 3
Leaves. Color - Dark-brown
a year ago
3
7
Solved
LukeLaBam
Emerging Issues - Week 9
At the beginning of the week, I noticed the tips of the leaves drying out. Now, one out of the four plants has completely yellow leaves. Could it be due to the increased Biobizz Bloom dosage? For more information, please check my journal. Regards.
Leaves. Color - Dark-brown
Feeding. Deficiences
a year ago
4
4
Solved
Gdubgrows
Brown spots on the Gold Leaf?
Brown spots with light yellowing. Possibly calcium deficiency? This is only happening on the Gold Leaf. Neither of the GDPs are showing these signs. This has happened over the last 2-3 days.
Week 4
Leaves. Color - Yellow
Leaves. Color - Dark-brown
a year ago
4
3
Solved
VitaMan
Leaf necrosis
What's going on with mk Ultra? It gets Neem every 2-3 days, and I have tried to keep pH down to 6. This has been going on since I got the clone, and it continues to happen. The pink kush (last pic) has a few similar spots. Lights are 50cm above.
Week 3
Leaves. Color - Dark-brown
a year ago
3
2
Solved
Bmolly
Why do the leaves of my plants have brown spots?
Why do the leaves of my plants have brown spots? I have control over all cultivation parameters except for humidity, which has been difficult for me to control and is currently high. What do you think?
Leaves. Color - Dark-brown
a year ago
1
4
Solved
dillande3
Looks like the leaves are rusting, Bronze colours comming from the middle and get a more rusty look and then dying
Hello it looks like the leaves are rusting, Bronze colours comming from the middle and get a more rusty look and then dying eventually Pls let me know what need to be done, I am using Organic Living soil method and water only way, Its now Day 35 Flower Phase, PGK, in 5-gallon TC
Week 4
Leaves. Too few
Leaves. Dropping off
Leaves. Color - Dark-brown
a year ago
3
3
Solved
GoldenWeedGrower
Brown tips and edge
Hi guys, can you please tell me if the signals on the leafs are normal in this stage or if I should be worried about ? Many Thanks 🙏
Leaves. Curl up
Leaves. Color - Dark-brown
a year ago
4
2
Solved
Giovanna
Leaves with stains.. :/
Anyone can tell me whats is this? any deficiency? excess of nutrients? pls help me
Leaves. Color - Dark-brown
a year ago
1
1
Solved
ekkoz897
2 out of 5 plants are showing signs of nutrient burn? Soil grow
Hi, I am seeing clear signs of nutrient burn but only on 2 out of 5 plants. I feed them organic nutrients, following the chart that was provided by BioBizz. Why are they still showing burned leaves? I watered them thoroughly until the runoff was clear. But leaves keep burning.😦
Week 9
Leaves. Color - Dark-brown
a year ago
4
7
Solved
Terp1
Braune Flecken an den Blattspitzen. Was ist das? Brauche Hilfe.
Tripe G Automatic - Tag 49 - Diese braunen Flecken habe ich heute auf den oberen Blättern an den Blattspitzen entdeckt. Mangel? Vergiftung oder Pilz? Kann mir jemand weiterhelfen?
Leaves. Color - Dark-brown
2 years ago
4
2
Solved
Bmolitor
Discoloration of leaves
Wanted to get an opinion on why the end of the leaves are discoloring
Leaves. Tips - Die
Leaves. White powder
Leaves. Color - Dark-brown
2 years ago
1
2
Solved
Jaykut22
I have no idea what these brown spots are on my seedling?
Brown/ rusty looking spots on seedling. Only thing I did was spray with a Epson salt and B52 foliar spray. The soil is deprived of magnesium so that’s why. I think I corrected by using cal mag. The sister plant is a few weeks ahead and showing recovery.
Leaves. Color - Dark-brown
2 years ago
1
1
Solved
Togoutouseg
Feuilles jaune et marron!
Bonjour, j'aurai voulu savoir si vous saviez ce qui arrive à me plantes. Une d'entre elle se décolore, elle perds son vert qui jaunis. Et l'autre à beaucoup de mal à pousser, et ses pointes deviennent marron. Les feuilles se lève aussi. Merci beaucoup pour votre réponse.
Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Dark-brown
2 years ago
1
3
Solved
RoidBlaze
Droopy, curling inwards, dark green/Brown leaves
Seeing if i can get some more suggestion for droopy leaves curling inwards. The leaves now have a very dark green to brown color on the leaf. It's been about 4 days now. Def not under watering and don't think over watering.
Leaves. Color - Dark-brown
2 years ago
1
1
Solved
Hermes88
Still dying
last week Leaf miners attacked my plants and I fought them with neem oil. The parasites are gone but I don't understand why the leaf is still dying
Leaves. Color - Dark-brown
a year ago
3
Solved
Kmurr07
Too late for epsom salt spray?
Is it too late to use epsom salt as a foliar spray for my potential mag def? Also unsure of how much long I actually have until chop All plants were flipped the flower the same day on April 28.
Week 9
Leaves. Color - Dark-brown
a year ago
2
Solved
Kmurr07
Too late for epsom salt spray?
Is it too late to use epsom salt as a foliar spray for my potential mag def? Also unsure of how much long I actually have until chop All plants were flipped the flower the same day on April 28.
Week 9
Leaves. Color - Dark-brown
a year ago
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
a year ago
1
2
Solved
Hermes88
Help me please. Thank you so much.
Hi guys I need some help with my little plants, I have three plants one of them it's all right but the other one has this problem, I don't know if the problem is nutritional excess or nutritional deficiency, or maybe the irrigation.Instead for the topleaves look at the last phot
Leaves. Color - Yellow
Leaves. Color - Dark-brown
a year ago
2
3
Solved
CoughingKitty
Dark brown edges
Hi. I need some solid advice as to what could be causing my lower leaves to be turning dark brown on the tips and edges. When looking closely, the browning has a bumpy texture and what looks like a fine, grey powder. Excess, deficiency? Idk
Week 8
Leaves. Color - Dark-brown
a year ago
2
4