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

Recommended

Grow Questionswhat cause it，Is it normal?

what cause it，Is it normal?

Lil_Teddystarted grow question 4 years ago

what cause it，Is it normal?

Lil_Teddy

Lil_Teddy

Lil_Teddy

Lil_Teddy

Lil_Teddy

Lil_Teddy

Lil_Teddy

Solved

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

likes

Burmeseanswered grow question 4 years ago

Hi Friend, I would say that’s the trail of snails.It’s always happen when you growing outdoor.Nothing seriously but You should check your surrounding and you may find one.Happy growing...

1 like

Complain

Selected By The Grower

Qlimaxanswered grow question 4 years ago

U have bugs INSIDE leafes

likes

Complain

Qlimaxanswered grow question 4 years ago

I think mu habe bugs inside leavs

likes

Complain

Nor_Cal_Kannablissanswered grow question 4 years ago

Absolutely Leaf miners. A Neem Oil, Or my now favorite The Amazing Dr. Zymes should take care of them. 👌

likes

Complain

Shockolateman08answered grow question 4 years ago

Leaf miner or some type of pest 😔 Google how to get rid of pests on marijuana...there's lots of ways, but keep in mind the simplest work best. 👌👊

1 like

Complain

Similar Grow Questions

Solved

Living soil and rain water problem Has using rain water killed my living soil? Has anyone got experience of using living soil with rain water? Apparently the ppm is too low (just like RO water) for the plant to take in nutrients. So basically is my living soil now just soil or is the microbial life still there?

Leaves. Curl down

Leaves. Color - Yellow

8 months ago

5

3

Solved

Why is my plant yellow at the top?Seed: Royal Jack from RQS 8 weeks from seed(4th week of flower) Medium: BioBizz Lightmix Nutrients: Half of recommended BioBizz dosis Bio-Grow Bio-Bloom Top-Max Bio-Heaven Acti-Vera Calmag Watering with 4 Liter water and nutes every 2-3 day. Run-off ph 6.6 1260 ppm 45DLI

Leaves. Color - Yellow

8 months ago

4

Solved

Stickstoffüberschuss?Habe bei meiner Auto das Problem das sie kaum in die Höhe wächst, dazu die Flecken auf einem Blatt. Ich habe aber das Gefühl das die anderen Blätter auch zu dunkel sind? Vielleicht wächst sie wegen einem Stickstoffüberschuss nicht mehr?Sollte ich erstmal ohne Dünger gießen?

Leaves. Too many

Leaves. Tips - Die

Leaves. Color - Dark-brown

8 months ago

2

1

Solved

SuperGreenGoblin

Yellowing spots on leaves I've been always feeding less than the recommended dose. Fed every second watering and watered every 2 to 3 days. Grown in All-Mix from BioBizz from the beginning. Now suddenly in week 8 leaves started to yellow, some fell off and weird yellow and brown spots appeared. What is it

Leaves. Dropping off

Leaves. Color - Yellow

8 months ago

2

2

Solved

Suspected Nitrogen Deficiency Noticed yellowing leaves at the start of Week 3. Suspect nitrogen deficiency. Using Cal-Mag, Alga Grow(NPK 4-2-4), and Power Roots(NPK 0-0-2) at half the recommended dosage. PH is measured at - 6.5.

Leaves. Veins - yellow between

Leaves. Color - Yellow

Feeding. Deficiences

8 months ago

2

2

Solved

Maybe Mg?Hey guys! My baby is in the 4th flooring week. One of the platns get Yellow leaves... Maybe more Mg? I have the hole BioBuzz line which produkts can i use to help her? I gave her a higher dose of CalMAg an how much? She has an 20 Liter airpod.

Leaves. Color - Yellow

8 months ago

1

1

Solved

What can I do? Leafs starting to turn yellow. First grower Yesterday, I noticed some leafs starting to turn yellow and also the tips of the top leafs to be a bit brown. So I watered (nutrition in the desc) and calmag 2 ml, because I thought it might be either lack of PK or cal mg. What else can I do? What about my watering schedule?

Leaves. Color - Yellow

8 months ago

1

Solved

light stress of seedling Light stress (image of 28.5.): is it likely that my plant will recover?

Leaves. Color - Dark-brown

8 months ago

4

4

Solved

Calmag or Potassium deficiency Starting to show hard yellowing on plant #2 looks like it can be calmag Deficiency or Potassium Deficiency. I gave them a bit extra calmag a few days ago and it seams like things are not improving too much.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Leaves. Color - Mottling

8 months ago

7

3

Solved

Top leaves turn dark and curl - What can I do?I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago. Mid last week I started noticing some burn a the tips, so i dialed nutrients back again. By this weekend the tips of the leaves curled further and turned dark. The rest still looks a bit pale, but buds look good.

Leaves. Curl up

Leaves. Color - Pale

Leaves. Color - Dark-brown

8 months ago

4

5

Solved

Hojas bajas amarillas Tras un día de sol sin un calor excesivo he detectado hojas amarillas en la parte baja de esta auto mutante (2 plantas de una semilla). La he alimentado con algunos ferilizantes, incluso calmag en una cantidad adecuada para la prevención... ¿Qué podría significar? ¿Como parece?

Leaves. Color - Yellow

8 months ago

6

5

Solved

leaves with brown spots hi guys, do you know what these stains could be? Can you give me some advice please?

Leaves. Color - Dark-brown

8 months ago

1

1

Solved

Yellow top leaves Top leafy are yellowing, what can it be?

Leaves. Color - Yellow

8 months ago

1

1

Solved

Brown Spots on Leaves I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!

Leaves. Color - Dark-brown

Leaves. Color - Mottling

8 months ago

5

3

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

8 months ago

2

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

8 months ago

2

Solved

Yellow lower leaves Hello, This is my first grow and now I'm confronted with the first problem. The lower leaves on my plants are turning bright and yellow. A few leaves have very small brown spots. Can someone help me and perhaps have an idea as to how I should proceed? Thanks.

Leaves. Color - Yellow

8 months ago

1

1

Solved

Day 11 - Yellowing tips, pale color, slow-ish growth Germinated in jiffy pallets - good seedling stage, put them in 2L Pots with LightMix on day 7. 26° avg temp, 60-78% humidity, watering 150ml when top soil dry with 6.7 pH, BioBizz Root Juice & Bio Heaven so far. Bilberry Mini 160W at 40cm distance and 25% power. Why yellow :(

Leaves. Color - Yellow

Setup. Strains - Photoperiod

Feeding. Schedule

8 months ago

2

3

Solved

Gelbe Blätter Denkt ihr die plötzliche gelb Färbung der oberen Blätter kommt durch die Blüte oder weist das eher auf einen Mangel hin?

Leaves. Color - Yellow

8 months ago

2

2

Solved

Nitrogen deficiency but why?My Critical Auto is more and more wilting and yellowing. Most likely due to nitrogen deficiency. Some have red tips on . PH of soil was normal, how can I make sure that it's not nutrient lock anyway? Should I flush it nonetheless? Feed it more? More info in my diary.

Leaves. Color - Yellow

8 months ago

2

2