The Grow Awards 2026 🏆

Back to Grow Questions

Manchas amarillas

julian100614started grow question 5y ago

Le han aparecido unas manchas amarillas en las hojas inferiores que no se muy bien lo que es. Tambien acaban de aparecer los 1° pistilos y no se si tendra algo que ver, me podrían ayudar? Carencia? Sobrefertilización? Se han quemado por el sol directo? Normalidad? Gracias

julian100614

Solved

Leaves. Color - Yellow

likes

The_420answered grow question 5y ago

Bonjour Les carences en calcium peuvent pousser les nouvelles croissances (racines ou jeunes feuilles) à se former incorrectement et être déformées. Prévention • Ajouter de la chaux dolomitique/de jardin à votre substrat de culture. • Un pH de 6,2 offrira un meilleur environnement pour l’assimilation du calcium. • Ajouter beaucoup de coquille d’œuf à votre compost biologique. • Lancer une ferme de lombrics ! Le lombricompost offre un tas de nutriment, y compris du calcium. Solutions • Appliquer un booster cal-mag. • Augmenter ou diminuer le pH pour atteindre 6,2. • Ajouter une cuillère à café de chaux hydraté dans 4 l d’eau et utiliser la solution pour l’arrosage de vos plantes. J'espère que cela va vous aidé bonne culture 🤞😊

1 like

Complain

Selected By The Grower

bryanwheatanswered grow question 5y ago

I had a similar problem around week 3 into my grow which ended up being a calcium deficiency. A steady light feeding of cal/mag straightened it right out.

1 like

Complain

TimTheTerpMananswered grow question 5y ago

Is this on Lower growth? If so the plant could just be using up the nutes on that leaf in preparation for self pruning useless leafs off. I wouldn't worry unless it starts showing up on alot of leaves. Your girls look healthy and happy! Check out my first grow for tips tricks and to learn what not to do! Cheers and happy growing!

1 like

Complain

MadeInGermanyanswered grow question 5y ago

Hi buddy ;-) don't worry your plant looks great 😍🙏🏻, water the next 2 times with half or a quarter dose :-) 1.4 ec is a little bit too high at this stage ;-) and what is your watering behavior?

1 like

Complain

Similar Grow Questions

Solved

Insects Spider mites.. What to do with them and how to get rid of them?

Leaves. Color - Yellow

Plant. Other

3y ago

4

3

Solved

GranddaddyTurtle

Yellow again How to fix it

Leaves. Color - Yellow

5y ago

1

1

Solved

Yellowing leaves with brown spots Experiencing some yellowing leaves with brown patching on this plant, I checked the plant doctor site and no deficiencies really matches the description 100% so it's left me scratching my head. What do you think it could be?

Leaves. Color - Yellow

5y ago

1

1

Solved

HELP Please So my leaves are getting yellow from the top down and I’m a few days from the begging on week 7 of flowering. Anyone know what’s the issue?

Leaves. Color - Yellow

3y ago

3

3

Solved

In the past few days im after noticing some discolouration on some of the leaves. They look to be turning a yellowish colour. Is this something I should be concerned about? And if so, what should I do about it?

Leaves. Color - Yellow

5y ago

2

2

Solved

First time HESI soil What’s happening to my girls? It’s the first time for me with minerals, currently using the HESI Soil Pack. Maaybe I’m putting a little too much SuperVit. Both autos, SweetZZ in 15L and Amnesia Lemon in 5L pot. Yellow fan leafs, red stem, lil weak.. Look at the pic and tell me :)

Leaves. Color - Yellow

Plant. Stem - Red or purple

5y ago

2

2

Solved

My Plant has a defizid Hallo Freunde, Meine Ladys haben wohl bisschen Probleme, kann mir jemand sagen was es sein konnte ?

Leaves. Color - Yellow

Feeding. Deficiences

3y ago

2

2

Solved

Week 9 leaf's are turning yellow HELP Help entering the 9th week and the leaf's are starting to turn yellow. I gave some bloom nutrient yesterday I've also seen other diaries where at the end they turn. Do I have a problem? Thanks

Leaves. Color - Yellow

5y ago

4

3

Solved

Scared of bud rot So my last harvest last week had bud rot and I noticed my Royal jack has a lot of yellow leaves but I think she still needs at least one more week to grow. Could this be bud rot even if I don't see any other signs? Should I do an early harvest just to be safe?

Leaves. Color - Yellow

5y ago

2

2

Solved

IMPORTANT excess/deficiency? What's happening? Flowering is in danger What's happening here? I think it could be Fe deficiency, Mn deficiency, S deficiency or maybe K excess. But I'm not sure about diagnostic and I think I can have more than one problem. Please help, I don't know how to solve it and I see how flowering is very slow and weak

Leaves. Color - Yellow

Leaves. Color - Pale

Leaves. Color - Mottling

4y ago

6

7

Solved

Gelbe Spitze Habe Probleme hauptsächlich an der Spitze und vereinzelt an der Pflanze! An der Spitze ist es nur am auffälligsten.. Kann es Lichtbrand sein?

Leaves. Curl up

Leaves. Color - Yellow

1y ago

1

1

Solved

Help: potential over fertilisation or over waterning I used Biobizz bio grow, 2ml/L and sprayed them more than usual. The tip of the leaves is getting yellow. 2 plants have the leaves pointing down and seem more textured and tick. The other 2 (the biggest) seem better, but the yellowing of the leaves is more evident. Check the diar

Leaves. Curl up

Leaves. Color - Yellow

Feeding. Other

2y ago

7

2

Solved

Yellow leafs Does anyone knows what this is?

Leaves. Color - Yellow

5y ago

1

2

Solved

Fan Issue 1 plant has yellowing leaves only at top of a few main colas. Other plant fine. Lower buds on both plants are fine. Light is at 62000 LUX (it's all I have), max is 75000. Forgot to press oscillate on fan after watering. 2 days gone, affected plant got no fan. Nutes same 4 both.

Leaves. Color - Yellow

1y ago

6

5

Solved

Yellow tips at bud-leafs What is the worst case of what could happen to the buds and the harvest due to the yellow tip burn? Since 5 days the near leaf buds have yellow tips. It could have any reason. Flys, high ph, to high nutients. Already watered with neem oil and gave citrusjuice in water to lower p

Leaves. Tips - Burnt

Leaves. Tips - Die

Leaves. Color - Yellow

1y ago

4

4

Solved

TheYorkshireFarmers

Yellow Leaf!Leafs Starting To Turn Yellow 🤯 So Guys on one of the Cuts that I've managed to Get hold of (French Macaron) one leaf out of the 2 plants is starting to show signs of Yellow any reason to why this could be happening??

Leaves. Color - Yellow

5y ago

1

2

Solved

One month older baby with damage on leaves My Green gelato automatic is one month older and has some yellow and white spot on leaves. I attached some photos. Do you know what can cause this? How is look? Many thanks

Leaves. Color - Yellow

3y ago

2

Solved

Twisting and yellowing leaves (Using Nectar Of the Gods)So I have 1 LSD-25 and another plant which I didnt lable but am pretty sure is another LSD-25 that have twisted and yellowing leaves(one worse than the other). I dont know what their issue could be. I will also insert pics of my healthy plants that get the same treatment-W.C.O.G.

Leaves. Twisted

Leaves. Color - Yellow

Plant. Stem - Weak

5y ago

2

3

Solved

Deficiencies? Brown spots, yellowing and purple stems What is this deficiency or maybe toxicity and whats the solution? She is fed with biobizz chart instructions but with every other watering. She is big so I'm guessing I should water with nutes every time? She showed this first week into flowering.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Plant. Stem - Red or purple

5y ago

3

3

Solved

Yellowing, browning leaves Here is my Northern Lights Auto which is on Day 75 from sprout These 2 photos are taken 3 days apart to show the progression of whatever is happening. 4ml Biobizz Grow 4ml of Biobizz Bloom 2ml of Calmag Per litre, use 2L of water every watering

Leaves. Color - Yellow

3y ago

1

1