The Grow Awards 2026 🏆

Back to Grow Questions

Issues with leaf

Walleyeguystarted grow question 4y ago

Found this on one leaf. I was gone for 3 days. Not sure what this is. Is it a disease, or fungus, or deficiency ?

Walleyeguy

Walleyeguy

Walleyeguy

Open

Leaves. Color - Dark-brown

likes

Answer

Hashyanswered grow question 4y ago

The leaf may have been resting on the ground during lights off. If its just that part of one leaf I don't think you have anything to worry about. If your seeing it everywhere and on leaves that don't touch the ground on lights off you may have other issues.

2 likes

Complain

Similar Grow Questions

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

Spots on leaves These spots appeared on two leaves of the plant. The color is something between orange/brown. Could be dangerous? I almost have sure theres no much watering. What could be? Thanks a lot! Im sorry for my english.

Leaves. Color - Dark-brown

3y ago

2

2

Solved

HEEEELP Need urgent help, everyone in rollitup saying it was a PK deficiency but the more bloom i give the worse it gets. Need help fast please before it all dies.

Leaves. Dropping off

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

2

Solved

New grower with questions about burnt tips, browning/scrunching leaves and some pale/yellow spots!I noticed Quick One had issues with burnt tips and discoloration by the end of week 1 and 2, what could've been the issue? Apple Fritter is looking sick, brown spots, what is that? Easy Bud and Quick on have slight yellow/paled spots on their leaves, only 1-2, is that normal?

Leaves. Edges burnt

Leaves. Color - Pale

Leaves. Color - Dark-brown

9mo ago

3

3

Solved

Nutrients problem!Any one can explain this? I'm in 3 week of veg and I'm using Advanced nutrients; Grow 1ml Micro 1ml Bloom 1ml B52 0.5ml Mother earth 0.5ml Tarantula 0.5 Piranha 0.5 Voodoo juice 0.5ml Ppm 635 Ph 6.1

Leaves. Twisted

Leaves. Color - Dark-brown

Leaves. Other

5y ago

2

5

Solved

Damaged leaf Should I cut this leaf or it doesn’t affect anything? Thank you 🙏🏽

Leaves. Color - Dark-brown

5y ago

2

3

Solved

Brown dots on leafs Just checked on my girls, and noticed this slight brown mark on 2 leafs... what is this?

Leaves. Color - Dark-brown

Other. General questions

6y ago

4

Solved

One of the plants doesn't look so good, looks like is related Cal/Mag deficiency but I added it after 10 days from seed so not sure if I had to add more or is something else. Any clue about it?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

3

Solved

Stress or deficiency?Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency? Northern lights auto, 8-9 weeks. Canna Coco Nutrients.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Coco Issues, over/under nutrients?what can cause the brown/gold spots in the plant #2 and the yellow/brown tips in plant #3 recently had high humidity but already corrected. the coco didn't dry much. also, plant #5 dont grow in height pls help <3

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Feeding. Deficiences

5y ago

7

3

Solved

Are those nutrient defficiencies? Which ones?A plant had interveinal chlorosis on new leaves and then proceeded to show brown patches between veins on middle leaves. Another has coppery brown spots on leaf edges on the middle of the plant. Both were rootbound in living soil (peat/perlite/hummus + ammendments).

Leaves. Color - Dark-brown

Feeding. Deficiences

Techniques. Topping

1y ago

1

Solved

Cannabis_carlitos

One plant is lighter, showing signs of mites, smaller buds, and has brown tips! Please help! The other plant is so healthy vs this one. Thinking of cutting her down to save the other.. I do not want to but will if I have to

Leaves. Color - Dark-brown

3y ago

1

2

Solved

Help What’s wrong with my plant😬😬 first grow, end of week 2 in flower, using fox farm nutrients , and fox farm soil Also the only one I have found on any of the plants in the tent

Leaves. Color - Dark-brown

6y ago

1

2

Solved

Too much light or other deficiency Too much light or some other deficiency? I’ve been having some issues with yellowing leaves and some other issues with browning and wilting/curling which I thought was initially nutrient lock but what I noticed is all four plants were not stunted and continued to grow normally.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Plant. Wilting

3y ago

4

Solved

Started some deficiency with two plants I think the leaf going up is light stress, and the other yellowimg is n deficiency way too much food but I could use a 2nd pair of eyes on this

Leaves. Color - Dark-brown

6y ago

1

Solved

Spots on leaves and yellowing. Lower leaves. Dos si do Have some spots on dos si do leaves as well as yellowing. Thinking it's a deficiency. Possibly calcium. It happened right after a growth spurt. It's a coco grow. What kind of deficiency ?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

3

2

Solved

Nutrient lockout, ph imbalance or nutrient burn?Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn. The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.

Leaves. Edges burnt

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Brown spots Should I remove these leaves? I don't know what's going on.

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

4y ago

7

6

Solved

Canoeing and Brown Spots of leaf edges and tips.I have some Canoeing and Brown Spots forming on tips and edges of some leaves. Both Top and lower leaves. Not sure what issue is ? Please see pictures. This is a coco grow so soil suggestions might not be helpful.

Leaves. Edges burnt

Leaves. Color - Dark-brown

5y ago

5

5

Solved

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

3y ago

1

2