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 QuestionsHelp

Help

ThatSweetSmokestarted grow question 4 years ago

What is the the cause? Potassium deficiency? Only on newer growth. Ph should be good. Temps 74f - 80f. RH 35 - 50%. Just fed 1tbsp of dry bloom nutes (3-9-4).

ThatSweetSmoke

ThatSweetSmoke

ThatSweetSmoke

Open

Leaves. Color - Black or grey

like

Answer

DeadwebsiteBoringcommunityanswered grow question 4 years ago

looks like it could be tip burn.. 1 tbsp is 15ml.. Depending on what you are using that can be quite a lot.. I use like 1/4 tsp a gallon when it comes to powders.. Your better to start small and gradual increase then you are to go a full strength feeding. Hope this helps happy growing.

like

Complain

Similar Grow Questions

Solved

Deadly Leaves Start Week 9 … is this a Problem or normal?

Leaves. Color - Black or grey

2 months ago

1

Solved

Black spots It's the last clon from that strain that I have (There are no longer seeds for sale) after saving her (She was in terrible conditions) she was growing great this last 5 days until yesterdays that I saw this black spots. PPM 670-PH 5.78-WaterT 68.7-AirT 71.6-PPFD 120-Humidity80%

Leaves. Curl up

Leaves. Color - Black or grey

2 months ago

2

Solved

I keep loosing leaves to some sort of nasty necrosis. It affects leaves at all levels, small and big randomly. I had to remove a lot of dying foliage At first it looks like a asymmetrical spot of leaf starting to thin out to lighter color then tissue dries and turn black. I have high runoff EC3.3 and I blame Easy boost pellets because I only add rootjuice 1ml/L and sugar royal 0.5ml/L to my water. What is it and how I fix it?

Leaves. Tips - Die

Leaves. Color - Black or grey

Feeding. Deficiences

2 months ago

5

5

Solved

Weed doctors to the rescue Day 44, fb auto, my happy girl developed those dark spots at the top... Is this a Calmag deficiency? Although I'm giving her calmag every feeding. I think there are also first burnt tips. I'm about to water her tonight, what should or should not give her? Thanks for your inputs🙏

Leaves. Tips - Burnt

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

2 months ago

3

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

2 months ago

1

2

Solved

Leaves are turning into dark green with a plastic-like texture I have 3 ladies in my tent. While the others looking healthy, one of them has a darker green tone with a texture like plastic and shiny. Everything is the same (fertilizer ratio, coco medium), however the one on the picture has a problem. What might be the problem folks? 😩

Leaves. Curl down

Leaves. Color - Black or grey

3 months ago

3

2

Solved

What to do? → BF Runtz Auto - Day 42 - RH70, 80F in BioBizz Light Soil On my last post, I was advised I have N tox, so I watered w/o BioGrow, just BioBloom and it's gotten much worse. The runoff EC was 1.5 (watered with 0.8, runoff pH was okay), so I’m guessing it's salt buildup. I plan to flush when this watering dries out—any thoughts?

Buds. Not fattening

Leaves. Color - Yellow

Leaves. Color - Black or grey

3 months ago

1

Solved

Problem with plants in the 3rd week of vegetation.Hello everyone, I am new grower, in the 3rd week, I started having issues with the leaves. Does anyone have a diagnosis for this? I am using I am using Advanced Nutrients (Coco Grow A and B, B-52, Voodoo Juice) Coco Soil Temp: ~26 C Rh: 60-65% Feminized seeds Thanks :D

Leaves. Tips - Burnt

Leaves. Curl down

Leaves. Color - Black or grey

3 months ago

1

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

3 months ago

1

2

Solved

Flowering hello Farmers! Is this normal? What is the reason and what is the solution? Tnx

Leaves. Color - Black or grey

25 days ago

2

3

Solved

Schwarze Spitzen und Flecken nach Neemöl-/Kaliseifenbehandlung in der Dunkelphase. Schimmel? Dran lassen oder abschneiden? Bitte um Hilfe!03. November: Zu Beginn der Dunkelphase, einen Mix aus 200ml Wasser mit 2ml Neemöl, ein Schuss Rapsöl und 4ml Kaliseife, auf die Pflanze aufgetragen. Grund dafür ist ein Befall mit weißer Fliege. Alles habe ich nicht aufgetragen. Heute sehe ich schwarze Flecken. Ist das Schimmel?

Leaves. Color - Black or grey

Other. Mold

3 days ago

1

7

Solved

Cookiemonster297

Black dots - second opinion needed Im growing an Gorilla-Cookies Auto, Indoor, 50w led, DWC with Plagron A+B and Power buds (Power roots at veg) water gets renewed once a week and my Ladie ist now 8 1/2 weeks old and Starts to develop black dots in the leave's Center. Looks Like a Problem with Magnesium to me,

Leaves. Color - Black or grey

11 days ago

2

3

Solved

ist das sclimm Kennt sich wer damit aus und kann mir sagen ob das schlimm ist? das ist mein erster grow und nur diese pflanze hat auf ein paar blättern diese punkte danke schonmal im vorraus

Leaves. Color - Black or grey

7 months ago

5

4

Solved

Grey leaf tips Booth plants are showing some kinds of burn and I am not sure if it is nutrient burn or light burn or if there is something missing. Looks a bit like MG deficite but shouldn't the plant take that from the soil in that state and age?

Leaves. Color - Yellow

Leaves. Color - Black or grey

Feeding. Deficiences

7 months ago

5

5

Solved

Leaves turning funny Hello can anybody please tell me what this is and the cause plese for the leaves to be discoloured and dying ogf

Leaves. Color - Black or grey

8 months ago

1

1

Solved

longearringboy420

Black dots on leaves ?Late during flowering, no apparent bugs inside or anything visible. Not all the leaves, but some started drying and showing these weird black dots on it. Really not sure what this is, please help.

Leaves. Color - Black or grey

6 months ago

2

Solved

longearringboy420

Black spots on leaves Black spots present on some fan leaves. During ~3rd month right now. Watering with HESI in Coco Coir, PH ~6 every time, 1/2 runoff water. For about 2 weeks prior to this, I also added very small amount of kelp powder. Soil seems fine.

Leaves. Color - Black or grey

6 months ago

2

Solved

MarcoCasanova00

Pest infestation left my plant folded and weak. I treated it, but now blacked out leaves?Ants were farming an oval shaped bug's secretions that was eating my stem and going underground, leaving a trail of a film-like substance. Treated it with neem oil, cigarette butt tea, garlic and dishwasher soap to fend them off. Black leaves now. Tips?

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

Other. Bugs

6 months ago

2

3

Solved

Organic peat control I think my plant is being eaten but gnats and it looks like nutrient damage on it but I haven’t given ANY nutrients to it. What should I do? Can you diagnose my plant? Any remedies? I heard cayenne pepper can be used for a pesticide is there other things? Does Neem oil work well?

Leaves. Tips - Burnt

Leaves. Color - Yellow

Leaves. Color - Black or grey

4 years ago

9

8

Solved

Black Leaf Does anyone know what's this? I just transplanted it, yesterday, and one of the leaves is getting black and smaller.

Leaves. Color - Black or grey

4 years ago

3

2