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

Back to Grow Questions

What’s this disease and cause

Australianbudsstarted grow question 2y ago

What is this disease on my plant or what is it and the cause?? Please help

Australianbuds

Australianbuds

Open

Leaves. Color - Black or grey

likes

Answer

Similar Grow Questions

Solved

Is this leaf septoria?Here we go again. What am I looking at here? Is this leaf septoria? How should I tackle this one lol

Leaves. Color - Black or grey

5y ago

4

3

Solved

Dark tips it seems to me that the tips of the leaves have a very dark color, it looks like an excess of nitrogen but in three weeks I have never fertilized and the only additions to my biobizz light mix are a sprinkling of guano kalong and 10% of worm humus biobizz.

Leaves. Color - Dark-purple

Leaves. Color - Black or grey

5y ago

4

3

Solved

What’s the problem ?Rqs Nl Auto week4 flowering BioBizz all mix biobizz nutrients What’s the problem ?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

2y ago

2

2

Solved

Color leaves Hi do you know what these spots are ?? where the leaf is located it looks thin and is drying out. Thanks for help. I have used many types of insecticides.

Leaves. Color - Black or grey

5y ago

4

5

Solved

Black/brown spots hi all its currently day 14 of flower i have noticed that there is spots on another one of my plants hope you guys could help me out

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Feeding. Deficiences

5y ago

2

2

Solved

Hallo, werden die Blätter der Pflanzen dunkler wenn man mehr Dünger gibt bevor dass sie überdüngung Erscheinungen haben? Ich nutze Canna aqua. Ich weiß dass wenn ich zu viel Stickstoff gebe dass die Pflanzen dunkler werden. Ist das aber auch so bei zu hohen EC?

Leaves. Color - Black or grey

5y ago

1

2

Solved

Silverish hue to leaves So I have a slight change in color on one of my girls, leaves seem to be getting a bit gray very uniform color change but only on some of the leaves. Im not sure if this symptom is due to nutrients at first I thought mold but it's very uniform. Please anyone have tips?

Leaves. Color - Black or grey

4y ago

5

5

Solved

greyish leaftips and dieing branches after topping the highest branches died after topping. It looks to me like they had the same symptoms like some new upper branches are developing now. It looks very dark & feels soft Temps were 17-19°C & Humidity was 90%+ Water should be PH5.9, think ph reader might be wrong and ph is too low?

Leaves. Color - Black or grey

7mo ago

1

1

Solved

Grey spots appearing on both sides of leaves on this seedling. Already receiving light feed grow+calmag. What could this be?

Leaves. Color - Black or grey

4y ago

2

2

Solved

What deficiency do you think I'm dealing with? These are old fan leafs.

Leaves. Color - Black or grey

5y ago

4

2

Solved

Discoloration Two of my leaves have serious discoloration coming from the middle of the leaf

Leaves. Color - Black or grey

5y ago

2

Solved

LEAFS DYING The edges of the leaves are dry and black. Every single point of the leaf is burnt(black) or yellow...even some edges on the leafs of the coal are burnt. I guess it’s overfert...but I just flushed. Is it Ph? I haven’t checked in awhile. Is it they ready to be cut down?

Leaves. Color - Black or grey

5y ago

1

2

Solved

Problem with plants in the 3rd week of vegetation.I'm posting again because I accidentally marked it as resolved. I was using BioBizz CalMag from the beginning, but when I switched to Advanced Nutrients, I stopped because Ph Perfect Sensi Coco Grow A and B already contain CalMag.

Leaves. Curl up

Leaves. Curl down

Leaves. Color - Black or grey

1y ago

1

2

Solved

I’ve never seen this before?!Weird spots on leaf’s I’ve never seen before. Growing in coco with dry amendments and worm castings. Ph 6.7/6.5. Just gave some compost tea earlier today. And earlier this week some GH calmag because some of them are showing deficiencies for that. But what are these weird spots?

Leaves. Color - Black or grey

4y ago

5

Solved

Dark leaves I am at the end of my grow and i spotted some dark areas on some leaves and sugarleaves. Beginning at the outside. Can someone tell me if its mold, or something i havn't to worry about?!? Thanks

Leaves. Color - Black or grey

1y ago

1

2

Solved

Nutrient burn How can I fix a nutrient burn on a seedling?

Leaves. Color - Black or grey

5y ago

1

1

Solved

Black tips One more. What's up here? Its happening to 2 plants but I've no idea why. No changes no stresses.looks like a nutrient problem. But if it is what is it and how do I fix it? I dont usually feed but if it will help ill get something.

Leaves. Color - Black or grey

5y ago

1

1

Solved

Light distance and power I have lumatec Zeus pro 600w 2.9 Plan is to have it 50cm away 25% power 1st week veg 50% power rest of veg 75% power for 3 weeks of flower 100% power till the girls are finished In the 1st grow I’ve made mistake in the light management. Am I correct in my thinking this time?

Leaves. Color - Black or grey

3y ago

1

4

Solved

Grey spots on leaves and yellowing The leaves are looking light green to yelloe and there are these dark edges on the leaves are showing up.. Has anyone experienced this before? It was happening a bit before transplant but now it seems to be getting worse. I just transplanted within 24hrs... Stress? Overwatering?

Leaves. Color - Black or grey

5y ago

1

1

Solved

Leaves with Spots brown/yellow.this is my 1st grow, they are autoflower and this is day 60. ec from last runoff was ok. ph was 5.95 maybe is too low, but im already give him high ph they start getting this stains week ago i change my light recently, and i got high humidity last week like 80%.

Leaves. Color - Black or grey

2y ago

1

1