Vote Now 🏆 for the Grow Awards 2025!

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

Recommended

Recommended

Grow QuestionsRust on leaves

Rust on leaves

Sk1nRstarted grow question 4 years ago

Hi everyone. I've discovered rust spots on my leaves. I can't tell if it's fungal or nute burn, the rust doesn't seem to be coming off on my fingers which I think is a good sign? Does anyone have an idea of what it could be and whats the best 'next step' to take? Thanks IA ✌️

Sk1nR

Sk1nR

Solved

Leaves. Color - Dark-brown

like

L_Tetragrammatonanswered grow question 4 years ago

It’s the cal-mag flushing out. Nothing to do at this point in the grow. Ladies are looking good and happy growing!!!

1 like

Complain

Selected By The Grower

Sk1nRanswered grow question 4 years ago

@l-tetragrammaton thank you! Will I just keep following the feed chart then?

like

Complain

Similar Grow Questions

Solved

Bronze spots What could be this spots? Found 4.

Leaves. Color - Dark-brown

2 years ago

18

9

Solved

Potential bud rot?My critical cure has some of the smaller leaves near and in the buds which are starting to turn rusty brown. Is this a starting sign of bud rot? Should I cut them early? I do not see anything abnormal under the microscope or when separating the large buds by hand. Thanks!

Buds. Other

Leaves. Color - Dark-brown

Other. Mold

2 years ago

8

5

Solved

Nutrient issues or some other problem?This is my second grow. I’m experiencing tiny brown spots on leaves with yellowing of leaves it is a Seedsman nl auto.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

2 years ago

4

4

Solved

Sensi Amnesia Auto looking unhealthy :(Sensi Amnesia Auto looking unhealthy. Week 6 since sprouting. Leaves getting dark brown spots, yellowing and getting crispy. This is my first grow and I'm lost on what to do. Please help :)

Leaves. Tips - Die

Leaves. Curl up

Leaves. Color - Dark-brown

2 years ago

4

4

Solved

What happen with my leaves?There are brown and red black spot on my leaves. and lower the top there are brown red and white spot mix together on my leaves. anyone know this problem?? Thank you. 😂

Leaves. Color - Dark-brown

Leaves. Color - Mottling

Leaves. Other

2 years ago

3

Solved

Brown rusty spots on a seedling What could be the issue? I only watered with plain water pH 6.2, soil is canna profesional plus, fresh out of bag. check diary for more info.

Leaves. Color - Dark-brown

2 years ago

3

3

Solved

Heat stress? Pls some opinion Idk what's happening Probably heat stress because is all th time more then 30c

Leaves. Dropping off

Leaves. Color - Dark-brown

2 years ago

3

6

Solved

colour change on leaf Just noticed there is a discolouration on the tip of the leaves just saw it today. And i dont want to loose the plants.

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

2 years ago

3

5

Solved

End of Cycle or something to be afraid Hi everyone, I think the brown leaves just reflect the end of cycle (WG started flushing 4 days ago, DSD33 today). I don't see signs of mold or something rotting, brown leaves do not detach, both plants show already some amber trichomes. What do you think?

Leaves. Color - Dark-brown

2 years ago

2

8

Solved

Leaves turned brown ! Please help Hello, Got a problem with this plant, it's 15 days old and there's brown on it's leaves... It does not grow as fast as the others. What could be the problem ? Platinium Royal Mix - Biobizz root-juice 2mL/L + Humic Fulvic Acid 3mL/L spray + Biobizz bio-grow 1mL/L 27°C / 50% H

Leaves. Color - Dark-brown

2 years ago

1

1

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.

Leaves. Color - Dark-brown

2 years ago

6

6

Solved

HomeGrown_Medicinal

Brown, curling leaves?I have no idea what's happening here but the girls are showing some kind of deficiency. Browning, curling leaves. I have two 100w led lights above them and I use an organic dry fertilizer, I recently brewed a compost tea to try to get nutrients to them

Leaves. Curl down

Leaves. Color - Dark-brown

2 years ago

6

6

Solved

Dark spots on leaves.Does anyone know why my plants are getting dark spots on the leaves and how I could treat them?

Leaves. Color - Dark-brown

2 years ago

1

4

Solved

DeepWaterGrower

Brown spots on some leaves Hi guys, today I found these spots on some leaves, few actually. I think it is an excess, in fact the EC in my DWC has been rising for a few days. Could you tell me more please? 😑

Leaves. Color - Dark-brown

2 years ago

10

8

Solved

Leaves problem Hello guys! I have a problem with one of my plants. Power Flower 🌸 the leaves have started going brown and the color of the plant is not green enough.. I think ether too much water or a mix of Amino+Copper! The autos got the same watering and same Amino+Copper mix! I'll sto

Leaves. Color - Dark-brown

2 years ago

2

2

Solved

Pls help Is IT magnesium deficiency again?

Leaves. Edges burnt

Leaves. Color - Dark-brown

2 years ago

1

1

Solved

Hard Tap water Coco DTW Hi,Here some Infos of my water It comes in a pH of 7,5 at the Moment(Summer) and about 0.5-0.6 EC maximum. I use Coco coir and pulled a very good harvest but ALWAYS GETTING LEAVES CRISPY and burnt like hell.Anything I can do except for installing R/O that Is out of reach atm

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Plant. Wilting

2 years ago

2

2

Solved

Stressed plant Having a deficiency or toxicity... Anyone know off hand what this is?

Leaves. Color - Dark-brown

2 years ago

1

1

Solved

Deficiencies Hey guys, First two pictures are from one plant and the third is from another. Any idea what the issues are? First two pics I’m thinking phosphorous? The markings are only in one section though. Second I’m thinking cal mag? Thanks everyone

Leaves. Color - Dark-brown

2 years ago

1

1

Solved

I have this symptom, a pattern of rust spots happening on new leaves, I have checked medium PH, which is around 7.5. I think it is Boron Deficiency caused by The medium PH not being approximately 6.5. I need more suggestions, What do you guys think?

Leaves. Color - Dark-brown

2 years ago

1

2