Check the winners The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Grey Mold?
Top_Banana
started grow question 5y ago
Is this grey mold? It's been visible since around week 3 and It doesn't seem to be affecting the plant in terms of growth..
Solved
Other. Mold
1 like
seymore_budz
answered grow question 5y ago
If you haven't been spraying anything onto the leaves, I would say that's the early onset of powdery mildew.
likes
Complain
Selected By The Grower
EssKayPea
answered grow question 5y ago
id be more concerned with the leaves at the bottom. xD to me though it looks like calcified water or foliar spray... as for the bottom leaves, you might have some thrips or other hungry bugs..
likes
Complain
HerbalEdu
answered grow question 5y ago
look like powdery mildew, spray with 4 part milk 6 part water
likes
Complain
Kush_queen
answered grow question 5y ago
Have you been using foliar spray at all??? I you haven't yes it maybe mold but I have had foliar spray leave similar on my leaves before 🙏
likes
Complain
Similar Grow Questions
Solved
TheNewGuy94
Fabric pot buildup?
I noticed some brownish spots on one of the fabric pots, not sure what it is, I know theres some salt buildup but this is formed mor like spider webs with interlocking strands almost. What is it? Could it be the myco in the soil or something? Doesnt smell like mold/mildew
Other. Mold
5y ago
1
3
Solved
JuanHaze_Arg
Moho in the pot
I have a little gray mold on the bottom of the geotextile pot. I am using bioenhancer which brings beneficial bacteria and fungi such as trichoderma, do I have to get into trouble? How do I remove mold from fabric without damaging the roots?
Week 14
Other. Mold
4y ago
6
4
Solved
Tobagardenboy
white mold problem
Hello I'm new, currently having humidity problems in flower. 2 of my plants have a small amount of white fuzz mold on top of the soil. I read i can try to remove it and sprinkle ground cinnamon on top and let them dry out, any suggestions on ammount of cinnamon or what I can do?
Week 11
Other. Mold
6y ago
2
5
Solved
FeebleSnane
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
1y ago
2
Solved
Hutch80
Just reading about LST now, didn’t do it but wondering if it’s too late, if so what other types of methods can I use to increase colas at this stage?
Week 13
Other. Mold
7y ago
3
3
Solved
Erasmus
Best way to control humidity?
I have a 4 inch inline fan blowing in air at the bottom, I have a 4 inch inline fan sucking air out the top and a 4 inch fan to circulate air inside and a large 300 foot air dehumidifier in the tent but my humidity is still 50%-60% constantly. What am I doing wrong?
Week 7
Other. Mold
6y ago
3
Solved
JennK82
My plants might out grow my space. Any tips?
Week 10
Other. Mold
7y ago
2
2
Solved
Smokehonja
Bud rot??
Trying to figure out if this is bud rot.
Other. Mold
6y ago
2
2
Solved
Muscaria710
growdiaries Usernames
did you see this? is it ossible in 2024, having someone who think its funny? @fastbuds @growdiaires pls give this "grower" the feedback he/she deserves greetings
Other. Mold
2y ago
5
4
Solved
Iamgrowing
Stem issues?
Do I have to worry at all about this stem? It’s had the white bumps on it the whole time but now that I’m getting toward the end I’m worried that it could be something worse than I thought it was. Any concerns that it could be mold?
Week 10
Other. Mold
5y ago
2
1
Solved
CreoWeed
Hey guys, I need to know what to do with one of my side branches... It has grown too much and its currently at 2/3 centimeters from the 450w LED, which I cannot move any higher in the tent... I am not sure this is safe for the plant... What should I do?
Week 7
Other. Mold
7y ago
1
1
Solved
sndwich
Bud Rot
So after the mild panic attack about my LGBTQIA plants, that rose the question of possible bud rot, saw black spore things but assumed from the Thrips that won the battle, hoping I was right and its not bud rot!!!!! Answers on a postcard welcome D
Week 13
Buds. Other
Other. Mold
Plant. Other
6y ago
2
Solved
D7chow
Plants getting enough light? Put a white greenhouse plastic over em that shades and diffuses the light. plants look happy with praying leaves . Or are they trying to stretch to much? Not exactly sure on the light transmission. Is lux a good way to test light in a greenhouse ?
Week 10
Other. Mold
8y ago
1
1
Solved
Everest
Fungi in flowering
Found fungus on a girl's leaf. my first actions were to carefully remove the leaves that were contaminated and the excess leaves to improve ventilation. I also washed the Grown with disinfectant. What should I do next? It's 4 weeks to harvest, should I anticipate it to avoid
Week 10
Other. Mold
5y ago
3
3
Solved
ImIHighyes
Mold suspecting
Hi, this is my first amateur growing, I have 2 strains Bud Orange Auto and Skywalker Auto. I noticed a musty smell from my 2 plants, one is almost ready but the other one seems in stuck.. From the pictures, could you give me some advice if my plants are healthy or not? Many thank
Other. Mold
2y ago
2
3
Solved
worshiper
HELP!
wtf is it mold?( i use mycorhize ) how can i help them?
Week 6
Other. Mold
Roots. Other
5y ago
4
4
Solved
Duggster
I have some very bad news and need help. I was gone for a few days and when I returned to see how the plants were doing, lots of the buds have been taken over by mould. I am very disappointed with this and I think my only option is to harvest now. Please help!
Week 14
Buds. Other
Other. Mold
6y ago
2
Solved
AvoidingBananas
Mouldy, webbed buds
The humidity was too high when I went away and now my buds are mouldy. Obviously I’m heart broken (mainly at my own stupidity because I should know better!) and I wondered if there was anything I can do to recover some of the crop. Can I wash? spray? Dry out…basically anything?!?
Buds. Other
Other. Mold
4y ago
3
Solved
Pechu420
Fear of mold
Are these signs of mold? The humidity here is very high, the fan is on, but it's complicated. I see no signs of powdery mildew. But could it be some other type of fungus?
Other. Mold
2y ago
9
4
Solved
DopeGrows
Temps Humidty Optimization, Worried about mid/late flower
Hello guys My grow tents have high humidity. A fan is venting into attic. There is a vacuum in the room so the air is circulating+ dehumidifer outside tent Maybe too many plants? Night~19° Day~25° 55-62% RH too high for flower? Want to prevent budrot. Temps OK? Any ideas? Thanks!
Week 6
Other. Mold
Setup. Ventilation
4y ago
7
4