Vote Now 🏆 for the Grow Awards 2025!
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
Possible mold/mildew - I ask a ton of grow questions but figure someone else might learn if I do well or f up. Good community here
Eldritchscotchtoberstarted grow question 4 years ago
Mildew? This has been on certain leaves of my plants since I got them so I didn't think much of them. But as I'm about two weeks into flowering, I want to see if this is possibly an issue. Have okay airflow in the tent but could be better. Humidity is 55% atmosphere. Thoughts?
likes
TwistedSeedanswered grow question 4 years ago
You need to take pictures with regular lights, colours are important to diagnose the problem (but i bet it need CalMag).
NSCannaanswered grow question 4 years ago
That looks like insect damage, but hard to be sure without seeing them in normal light. Either way, get a magnifying glass and have a look at the tops and undersides of your leaves.
2 likes
Complain
Similar Grow Questions
Solved
IronGrower
Powdery mildew - end of week 3 of flowerAnything 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 spraLeaves. White powder
4 years ago
1
1
Solved
Oggigz
Should i care ? I m going paranoid xDHello 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 gurls4 years ago
3
3
Solved
vito_scl
Is this a kind of plague?Is this a kind of plague?
Should i worry about?
Im in the 5th week of flowering.Leaves. White powder
Leaves. Other
4 years ago
2
2
Solved
Nickeluring
White powdery mildew in late flowerWhat'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.Week 11
Leaves. White powder
4 years ago
4
7
Solved
GreenPyramid
Is this powdery mildew?Is this powdery mildew? I am seeing some white spots starting to form on the underside and top side of lower fan leaves. Would adding an oscillating fan help prevent anymore white spots from appearing in the future or will I need to apply neem oil or something?Week 10
Leaves. White powder
4 years ago
2
1
Solved
AccyStoner25
I need help diagnosing what this was. I already cut off two of the affected leaves on the Kmintz, but other leaves have small amount of the same substance on both plants. The brown spot in the first pic ended up turning into a hole because it was so dry. Is this powdery mildew?Week 2
Leaves. White powder
4 years ago
3
4
Solved
Eldritchscotchtober
Possible mold/mildew - I ask a ton of grow questions but figure someone else might learn if I do well or f up. Good community hereMildew? This has been on certain leaves of my plants since I got them so I didn't think much of them. But as I'm about two weeks into flowering, I want to see if this is possibly an issue. Have okay airflow in the tent but could be better. Humidity is 55% atmosphere. Thoughts?Week 11
Leaves. White powder
4 years ago
3
2
Solved
Eldritchscotchtober
Mould? Mites? Nothing?OK, re asking this question with better photos as I don't know how to add new photos to an already posted question. Posssible mold? Spider mites? Leaves have looked kinda similar since I got them. Any ideas? To me it looks like maybe mites but I dunnno.Week 11
Leaves. White powder
4 years ago
6
8
Solved
Lillau
Que faire ?Fine pellicule blanche sur mes feuilles
Que faire ?
MerciLeaves. White powder
4 years ago
2
Solved
minionrebel559
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?Week 3
Leaves. White powder
4 years ago
1
1
Solved
Newbiegrower420
Is this thrips?Do my girls have what they call thrips?
If so what’s the best treatment?
Thanks 🙏🏼 😊Leaves. White powder
4 years ago
1
1
Solved
Wadadli_Kush
Powdery mildew?Hi I've noticed these things appear on some of my leaves over the past week or so. I'm not sure if it's powdery mildew or some other disease. Temp have been mostly 78℉ at night and 91℉ in day but humidity has plagued me with RH values of 70-90%. Can someone offer some help plzWeek 10
Leaves. White powder
4 years ago
4
4
Solved
cannaman9
White spotsHi, 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 oneWeek 4
Leaves. White powder
4 years ago
2
2
Solved
TheColonel420
Powdery mildewI have powdery mildew forming on the nurse lilly. A few leaves have a small amount on them. The plants are in flower week 5 and have another 5 to 7 weeks to go before harvest (plus minus) What can i do for the Powdery mildew?Week 14
Leaves. White powder
4 years ago
2
1
Solved
OleGrow
Powdery Mildew near end of floweringFor the last few days, powdery mildew is starting to form on the leaves and some of the buds. I've cut where mildew was, lowered humidity to around 45% and increased air circulation by focusing a fan on the plant but it is still forming. Anything else I should do?Week 10
Leaves. White powder
4 years ago
1
2
