The Grow Awards 2026 🏆

Back to Grow Questions

is this powdery mildew?

dodoistarted grow question 6y ago

is this powdery mildew?

dodoi

Open

Leaves. White powder

likes

Answer

MrBlocc420answered grow question 5y ago

Thrips. Insect issue a neem oil should take care of the problem.

likes

Complain

Experimentgreenanswered grow question 5y ago

Hello, Have you tried to wipe it off with a wet paper towel? If so it could be pm. If so it could be pm versus some sort of bleaching or bug. Hows the airflow? Increase if possible and then spray with a diluted water/hydrogen peroxide spray.

likes

Complain

Similar Grow Questions

Solved

WitekMajestatyczny

Small white spots on leaves in germination phase.Does anybody know if those small white spots are ok? I have water 7 pH and I add some citric acid to lower it to 6 pH, when I sprinkle the soil I lightly sprinkle the leaves as well and I'm not sure if it's the effect of dry citric acid or something else. Thanks.

Leaves. White powder

4y ago

11

7

Solved

White dots on the leaves Hello! There are white dots on the leaves can it be because the light was too close? The plant is 7 weeks old 🕊️

Leaves. White powder

4y ago

4

4

Solved

I'm starting to see some white spots on one of my plants and the bottom leaves are stating to yellow is it just fungus or potentially thrips? My other plant beside it doesn't seem to have to have the same white spots on it so I'm not sure if its spreadable.

Leaves. White powder

4y ago

3

Solved

How to get rid of powder mildew I found some powder mildew on my plants..can anyone give me some tips on how to get rid of it..cheers

Leaves. White powder

5y ago

1

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

White on lives White on leaves don’t know if it’s bugs or mildew. What do I do.

Leaves. Curl down

Leaves. White powder

4y ago

3

3

Solved

Pollen sacks or powdery mildew?I noticed what I thought was powdery mildew on a leaf, then noticed funny looking things right next to the powder. I think these are pollen sacks, and if they are I want to know if anything is recoverable, or if I need to scrap the whole plant/grow. "Second Grow" on my profile

Leaves. White powder

Other. Mold

Plant. Other

9mo ago

2

Solved

Albina vs decoloración ¿Alguién podría decrime qué tienen estas puntas? ¿Son albinas, decoloración o puntas blancas cargadas de tricomas?

Leaves. White powder

4y ago

3

9

Solved

White spots in leaves What are those white dots and what should I do??

Leaves. White powder

5y ago

1

3

Solved

Bean_Loves_Kush

I have noticed small powdery mildew spots on my pineapple express plant. The soil usually feels pretty dry so i don't think it is due to overwatering. I put them inside at night due to humidity outside. Should I separate this plant from the rest?

Leaves. White powder

7y ago

5

2

Solved

Powdery mildew? is there an organic way to treat it? Milk? mild vinegar solution I have tried the milk spray. It may have knocked it back a little but i'm pulling leaves every day and keeping a close eye out for it.

Leaves. White powder

7y ago

5

7

Solved

White spots on leaves !! First grow help please First grow auto -WHITE SPOTS ON MY LEAVES. Can anyone give me an ide a of what's happening to the plant at the moment ...? ;) any help much appreciated I can see more spots when I look under the leaves. It stays on a balcony and gets few extra hours of led at night. Thanks!

Leaves. White powder

5y ago

4

Solved

grzegorzdelaurans

FAN LEAVES this are fan leaves.......are those thrips or some other kind disease?

Leaves. White powder

2y ago

8

6

Solved

1 falling 2 thriving but I think the mildew is floating over. Outdoor I need help. The last pic was my least healthy plant. Powdery mildew. I am not over watering due to heat I’ve been at 3.5 gallons but soil is dry every morning. I’ve cut her bald she will prolly stress out. Every day more white. Should I just kill it and preserve the other 2 or k

Leaves. White powder

4y ago

3

3

Solved

Should i care ? I m going paranoid xD Hello guys, i m on day 28 from seed i would like to have some points of view of another growers.... leaves got silvered/brown colored with snowy aspect... not on all leaves but i m pretty affraid of insect and shroom contaminations... thx for replies men and gurls

Leaves. White powder

Leaves. Color - Dark-brown

Leaves. Color - Black or grey

5y ago

3

3

Solved

PM or just bleached? And healthy?This is from my AUTO MEPH double GRAPE plant (the first one) that I grew.. I didnt put the pictures up on the diary but its attached to this question. is it PM? Urgent :/ First time growing and I know you shouldnt micro manage ( i try not to) but This white thingy is scaring me

Leaves. White powder

4y ago

2

2

Solved

Newbiegrower420

Is this thrips?Do my girls have what they call thrips? If so what’s the best treatment? Thanks 🙏🏼 😊

Leaves. White powder

5y ago

1

1

Solved

Marks on leaves Hi guys,as first time outdoor grower i am not sure what is going on with the plant - it has some marks or spots on leaves, What can be the problem ? How can it affect my plant at all ? I appreciate any help!

Leaves. White powder

5y ago

1

1

Solved

Powdery spots on leaves Noticed powdery spots on some leaves this week (week 23-24). Plant is over 10 ft tall. Only fed water and got plenty of sun. What should I do to ensure a healthy harvest?

Leaves. White powder

4y ago

5

4

Solved

White spots What are the white spots on some of the leaves? Spider mites?

Leaves. White powder

2y ago

1

1