The Grow Awards 2026 🏆

Back to Grow Questions

White spots on leaves

RollinRickstarted grow question 5y ago

There are some white spots appearing on my leaves on a couple plants in the same tent? All are at varying stages of life, but one - which has not flowered (probably a photoperiod) doesn't have the same.

RollinRick

RollinRick

RollinRick

RollinRick

Open

Leaves. White powder

likes

Answer

Med_in_Tropicanswered grow question 5y ago

Looks like spider mite infestation. I use microbes to kill pest. My favorite for spider mite is Beauvaria bassiana.

likes

Complain

Similar Grow Questions

Solved

Could someone help me identify the mold? Im guessing mildew but it doesn't look like that or bud rot. It affects leaves and buds and looks like grey dust

Buds. Other

Leaves. White powder

6y ago

1

1

Solved

Does anyone know what this is?Can anyone tell me what this is? Already asked this but the pic didn't uploads last time. TIA

Leaves. White powder

6y ago

3

7

Solved

Why is there so much dust?Hi guys can you help me with this dust ;)

Leaves. White powder

3y ago

3

Solved

Is this powdery mildew? How can we know for sure?Could these white spots be mildew? We could easily just basically shake them off, without any residue remaining. Currently only discovered in those two spots seen on the picture. In pics I find from mildew, it usually starts more dusty.. I also made one picture under the micro.

Leaves. White powder

2y ago

3

4

Solved

Mold/Fungi Today I've found white spots on some of the leaves. What could it be? Mold/Fungi? I've been strugglin real hard to keep the humidity below 50%, but due to the constant rainstorms I only manage to get it to 54% at daylight and 58-60% at nightime :(

Leaves. White powder

Leaves. Other

Other. Mold

5y ago

1

2

Solved

how many times should we spray with milky water in case of powdery mildew when we are in bloom? do you have to spray with this solution every day?Several people here advised me to dilute the milk spray with water, I did it, I diluted 400 ml of milk with 1200 ml of water, then I sprayed the plants in the tent, since they are grown in scrog, it is difficult to get everywhere.

Leaves. White powder

3y ago

2

5

Solved

On my other grows I've had some issues with pests. The worst was white powdery mold, but I've also seen leaf miners, aphids etc. I want to treat this plant pre-emptively with something like BioNeem. Is it safe to do that at this stage of bloom? Can you recommend safe alternative

Leaves. White powder

7y ago

3

2

Solved

mildiu polvoriento; tratamiento? sugerencias?Tengo 4 auto a 1 semana de cosechar, tengo mildiu polvoriento leve, he cortado las hojas afectadas y he rociado con leche 1 parte y agua 9 partes.Estoy seguro que alguna hoja debe haber quedado con mildiu, pero rocié todo bastante bien! solo lo he hecho una vez, como debo seguir?

Leaves. White powder

4y ago

1

Solved

Powdery mildew - end of week 3 of flower Anything else I can do against the powdery mildew? I spray already few times a tea of: 10 g of dry field horsetail 1 Onion 1/2 Garlic ~ 500 ml lower HP water (i use a bit of natron) cook this for around 30 min very low. then i use 200 ml of these with 1 Liter of water and spra

Leaves. White powder

5y ago

1

1

Solved

White dust on leaves?I have a light white dust on my indoor Staples OG, it doesn't really come out in pictures well. When I look at it under the loop, it is crystal like but it's on the fan leaves. Does anyone have any ides what this might be?

Leaves. White powder

5y ago

1

1

Solved

Week 6 small white dot on leaves On a few my plants, I see these white spots. They don’t quite look like mold but I am new and could be wrong. Any help would be greatly appreciated.

Leaves. White powder

5y ago

2

Solved

White powder on leaves Got like a white powder on my leaves on one plant veg stage. Thinking it's some kind of mold but it's only on one plant out of 10 in 4x4 tent . Getting more & more of it but staying in that one plant..I moved her around so she'd get more wind. 2 weeks before she goes outside

Leaves. White powder

5y ago

8

6

Solved

Jerrylarrydalton

Can someone take a look at my bruce pics an tell me if that's mildew? I've never had wpm or had to deal with it but I think most my plants have some sort of it on them.. is it that? Or? Is it my neem oil water mixture? I spray them prob every week an a half.. thanks.

Leaves. White powder

6y ago

5

4

Solved

Bagnare foglie Ciao a tutti. Ieri ho spruzzato neem oil ed è rimasta qualche goccia nelle foglie lasciando della polverina bianca. Posso spruzzare sopra le foglie solo con dell'acqua con le luci accese(ciclo h24), per cercare di tirare via questi resti o brucerò le foglie bagnando? Grazie mille

Leaves. White powder

6y ago

4

3

Solved

White spots Hi, this morning I checked out my lemonchello haze growing in coco and noticed it has small white spots on the leaves. My first guess is mold but I have good airflow and the spots don’t look spread out more so just forming in leaf. Need a little help with this one

Leaves. White powder

5y ago

2

2

Solved

White spots?Are these white spots okay on the BD?

Leaves. White powder

6y ago

1

1

Solved

Ancient_Genetics

Pollen for Pheno Hunting I wanted to ask, if by any chance someone have some quality pollen, I plan to put pollen on one of my phenos, I can't get quality pollen, from qualty plant. If by any chance someone have it, and want to share some, and participate in the creation of a new plant,please contact me.

Leaves. White powder

Other. General questions

Setup. Strains - Photoperiod

3y ago

1

3

Solved

white spot on the leaves hey! out of sudden!!! my plant got this white spots on the leaves any help appreciated what should i do? is there's a way to bring it back healthy?

Leaves. White powder

5y ago

2

3

Solved

PM or Nah?Noticed some white spots on the tops of a few leaves. I’m days away from chopping and I’m wondering if it’s PM. If it is, what’s the best action to take at this point?

Leaves. White powder

5y ago

2

2

Solved

White powdery mildew in late flower What's your best remedy to remove it on flowering plants? I just found it after I had forgotten to replace on of the fans when I left them for a few days. What can I do to remove it as quickly as possible without ruining the buds? I'd prefer not spraying them with milk.

Leaves. White powder

5y ago

4

7