The Grow Awards 2026 🏆

Back to Grow Questions

Could these DARK Brow Spots be Leaf Septoria?

Ice_Rstarted grow question 5y ago

since two days dark brown spots have appeared on one of my plants (4 in total). it started with one leaf and is now on 5/10 leaves on that one plant. i am wondering if it could be Leaf Septoria as some of the symptoms seem to match but so does phottasium defficiency

Ice_R

Ice_R

Ice_R

Ice_R

Ice_R

Ice_R

Ice_R

Open

Leaves. Color - Dark-brown

likes

Answer

Ice_Ranswered grow question 5y ago

Anybody any idea?

likes

Complain

Ice_Ranswered grow question 5y ago

Last watering of this plant 25-11-2020 Feeding water: ph 5.8 ppm 435 runofff water:ph 6.25 ppm 695

likes

Complain

Similar Grow Questions

Solved

Debutant_dream23

Excès d'azote J'ai un excès d'azote en fin de floraison sa fait une 1 semaine que je rince à l'eau claire et m'a planté reste toujour au vert foncé qui peux m'aider merci

Leaves. Color - Dark-brown

6y ago

3

3

Solved

Browning spots after H202 rinse.Hey guys! My first dwc and I’m having an issue. So after about a week my water was cloudy. I rinsed and washed the bucket, fixed the area where light was getting in. Then I rinsed my cube and plant with H202 3%, 1/3 to 2/3 water. Changed out nutes but now look like this. ?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

2

3

Solved

soil ph is erratic fox farm ocean forest : pro-mix (3:1) - ph 6.3-6.8 run-off ph: plant 2: 4-6 plant 1: 5-6.8 watering / feed ph: 6.3-6.45 soil ph after water /feed: 5-7 soil ph when dry: 7.5-8 both plants treated 100% the same phosphorus deficiency / ph imbalance help please

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Plant. Stem - Red or purple

6y ago

4

3

Solved

Brown spots!?Hellooo everyone, I am new to growing and I have come across a few brown spots on one of my plants! She's a bit smaller than the other so I didn't train her.. let me know what you think! Also feel free to follow my grow to help me out along the way 😎😎

Leaves. Color - Dark-brown

Leaves. Color - Mottling

5y ago

1

2

Solved

Brown spots on leaves ?Realised I have some brown spots.

Leaves. Color - Dark-brown

5y ago

1

3

Solved

Brown spots on leaves This brown spot showed up in some leaves. I've cut them. But some more showed up next day. Is this any micro nuts def or a fungus?

Leaves. Color - Dark-brown

5y ago

2

4

Solved

DrNickerbaucker

Brown spot help.See the leaves in the pictures. There are some brown spots. Any help as to what it may be will be appreciated.

Leaves. Color - Dark-brown

4y ago

4

4

Solved

Brown spots What are these brown spots and how can I treat them. I saw them only on 3 leaves.

Leaves. Color - Dark-brown

5y ago

3

4

Solved

Purple stems and brown spots Brown spot and a brown tip on another leaf also purple spots on my stems pH was 8 with watering i found out i forgot to lower the pH

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Plant. Other

5y ago

3

Solved

Brown spots on leaves Hello, what do you think about this leaves? I've found them in just one of my girls, she looks weak in comparison with the rest. Thanks a lot, have a good one!

Leaves. Color - Yellow

Leaves. Color - Dark-brown

6y ago

1

2

Solved

Deficiency or excess of nutrient?Hi guys, I need help please, i'm noob. What kind of deficiency/excess nutrient is that? Thanks a lot

Leaves. Color - Dark-brown

Feeding. Deficiences

4y ago

4

3

Solved

Why did it become like this?in the first week these brown spots appeared ... Can anyone help me understand why only this plant of 4 ended up like this?

Leaves. Color - Dark-brown

7mo ago

2

2

Solved

i don‘t know what‘s happens? maybe more nutrients?need help

Leaves. Color - Yellow

Leaves. Color - Dark-brown

4y ago

1

4

Solved

shreddedminiyeets

I believe I have a phosphorus deficiency from lack of watering/early pH issues. I also have curly/dented leaves that can be seen in the close ups. Does this seem like a phosphorus deficiency or what else may it be?

Leaves. Color - Dark-brown

6y ago

3

5

Solved

Deficiencia o exceso en mi zkittez Tengo un problema con mi zkittlez alguna hojas de las puntas se están poniendo así especialmente de la hojas inferiores, no se que exceso o deficiencia es.

Leaves. Color - Dark-brown

6y ago

4

4

Solved

leaves brown stains is my 1st time growing weed. my plants start get this brown stains on top leaves 2 weeks ago; i check ph was 5.95; so i think this could be calcium, because internet say they cant absorb calcium; i have high humidity before the stains appear like 80% but was only 4 or 5 days.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

2y ago

2

4

Solved

MagicChelseaCrew

Lower Leaves turning brown Is this a nutrient deficiency? It's only on the lower leaves of both plants.

Leaves. Color - Dark-brown

4y ago

1

2

Solved

newtextdocument1

Deficiens or too much huminidy?

Leaves. Color - Dark-brown

5y ago

2

1

Solved

I only discovered this page very late and I'll just start documenting it here .. I planted the plant around mid-February

Buds. Not fattening

Leaves. Color - Yellow

Leaves. Color - Dark-brown

4y ago

2

2

Solved

Brownish Spots on 2 Older Leafs. Young plant.I searched it up before posting this and what I found is: Leaf spot, canker, and fungus: Brown leaf spot, Yellow leaf spot, Cladosporium stem canker and Chaetomium fungus. Solutions I found in the comments below. What do you guys think? Can it be heat (a lot of hot days here)?

Leaves. Color - Dark-brown

Other. General questions

2y ago

5

5