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 and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms

Accept

Recommended

Grow Questionsbrown marks on leaf

brown marks on leaf

zootietootiestarted grow question 4 years ago

Hello everyone, first tijr grower here. just noticed some brown blotches on the leaf of my plant. Does anyone have any idea what it could be? cheers

zootietootie

Open

Leaves. Other

likes

Answer

MedicalCannabisCultivationanswered grow question 4 years ago

That looks like pH fluctuations to me. In coco coir is happens sometimes if the irrigation solution is suddenly at a different pH according to what I read.

likes

Complain

Similar Grow Questions

Solved

What type of deficiency or imbalance is causing this?why is this happening to my lower fan leaves only?

Leaves. Other

4 years ago

2

3

Solved

Leaves tips yellow.I had this problem only on lower leaves before, and today over night I noticed its all over my plant. Its been in fox farm ocean forest for 2 weeks, i water with lemon to bring ph down, I thought the soil had enough nutrients to last a while, what could it be???

Leaves. Other

4 years ago

3

2

Solved

ihavetoomanypets

Leaf damage - any suggestions?Weather has been rough (see my notes from this week). Any suggestions on what I can do about the leaf damage to one of these Sour Diesels? I may start testing a spray mixture of water and hydrogen peroxide. Thoughts or suggestions?

Leaves. Other

4 years ago

2

2

Solved

Dark shiny waxy leaves?I have grown for about 3 years.its my first time dealing a bag seed that's completely beautiful.Seems to be growing like a sativa but with super dark leaves that are sturdy and waxy/super shiny. Also has purp stems. what causes this or is it a trait in certain strains?. Gr is 85°

Leaves. Other

Plant. Stem - Red or purple

4 years ago

4

3

Solved

southwestchicago

Initial Nutrient Treatment Plan and Small Brown Spot on Leaves Input Hello, Everyone! We just completed Week 3 of our outdoor grow in Fox Farm Happy Frog soil and would appreciate insight into recommended nutrient treatments moving forward, as well as additional input on the small brown areas noted in our Week 3 Comments for Plant #3. Thank You!

Leaves. Other

4 years ago

2

1

Solved

What’s up with my leaves!(aeroponics)Not sure what’s going on here

Leaves. Color - Dark-brown

Leaves. Other

4 years ago

2

Solved

My baby has some holes in the new leaves, what is it, please help?

Leaves. Other

4 years ago

2

Solved

Defoliation ?Pensez vous que je doive commencer à enlever des feuille sur les Delicious Candy ?

Leaves. Other

4 years ago

1

4

Solved

Weird rusting of leaves, what do my babies need?!Everything is finally starting to explode with growth, but new issue emerging. Can anyone help me figure out what I’m lacking??

Leaves. Other

4 years ago

3

Solved

white dots on the leaves ( no spider mites) what is it?there are dots on the leaves. i checked under the leaf, but there is no sign of spider mites. can anybody tell me what is it? (

Leaves. Other

4 years ago

3

3

Solved

Weird leaf color/appearance I've noticed that sporadically throughout the plant there are leaves that bend to the side and have this discoloration on half their fingers. Any idea of what deficiency or over nutrient problem this is?

Leaves. Other

4 years ago

2

Solved

Will these leaves recover I left my auto home for 5 days alone and gave a feed before I left. Was dry when I got back but has almost fully recovered in about 12 hours. A few of the leaves have not recovered and I'm wondering if they will or not.

Leaves. Other

4 years ago

2

Solved

Whats on my leafs Can anyone tell me why I'm seeing what looks like a very very small sticker or something funny on my cotyledone leafs. It's hard to see unless I take a pic and enlarge it but I have never se I'm no expert so anyone with help.its critical purple auto about a week since she popped

Leaves. Other

4 years ago

1

2

Solved

Nutrient burn?Soil- Fox farm ocean forest. I barely add any extra nutrients only bio root and microbial mass pro, but this started 3 days ago and its getting worse so I thought maybe wasn't enough nutrients so I added biomarine yesterday and rhino skin 🤷‍♀️🤦‍♀️ did I make it worse???

Leaves. Other

4 years ago

2

2

Solved

New leaves have some white dots Some of this plant's new leaves have white dots, i don't see any insects and i usually spray neem, any idea why this is happening?

Leaves. Other

4 years ago

2

1

Solved

Yellow Spots Can someone please tell me what these yellow spots are. They are not uniformed circles. Found them on two leaves. I removed both of them. First two pics are taken under a scope.

Leaves. Other

4 years ago

2

2

Solved

Light green spot on leaves I noticed a small light green spot a couple of days ago on her and I know I had this on the very bottom first leaves couple of weeks ago and now its on a very top leaf.

Leaves. Other

4 years ago

1

1

Solved

Small leaves on stem What are these Small leaves

Leaves. Other

4 years ago

6

6

Solved

WHAT IS THIS DISCOLOURATION? Critical Kush non auto from RQS, 10 weeks old, outdoor.There is some discolouration on the leaves. I have removed the worst off 7 leaves and applied a pesticide for spider mites, aphids, scale insects today. Should I remove all the rest infected leaves as well to be safe? Pesticide says I can repeat in 7-10 days. thanks

Leaves. Other

4 years ago

1

2

Solved

Droopy Leave Any reason to be worried? I have 7 plants going, 5 on the same feed. Only 2 plants are doing this but they are on different feeds. One has been mostly water and the other has been on the same feed as the rest but they are all fine.

Leaves. Other

4 years ago

3

4