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Back to Grow Questions
Sulfur burner/vaporizer
Wild_Bill
started grow question 5y ago
Will 99.9% MSM be sufficient to use in sulfur burner/vaporizer - to take care of WPM? Thanks in advance!
Open
Other. Mold
likes
Answer
Wild_Bill
answered grow question 5y ago
White Powdery Mildew
likes
Complain
GrowCN
answered grow question 5y ago
What is WPM?
1 like
Complain
Similar Grow Questions
Solved
Sejnik
I have a 1m² tent and in it, I have 9x11L pots. After watering with a 10-20% runoff, I have a problem with humidity in the air reaching 75% RH. The humidity outside the tent is 55%. I've done everything to reduce humidity (including reading all the grow questions on this topic). The question is: how will smaller watering affect the final quality?
Week 10
Other. Mold
Feeding. Other
3y ago
2
5
Solved
Spike-GreenGrower
Organic growers: question about mold
First picture includes both molds. Second picture is the 'spider-web' mold. (Good mold, correct?) Third picture is the unknown mold. (Is this good or bad mold?) The red wrigglers living in the soil eat mold, but can/should they eat the second mold? Should it be removed?
Week 21
Other. Mold
2y ago
10
8
Solved
Lord_Indica
Brownish spot on bud, bud rot or no worries?
Hey there! I've noticed a wired brownish spot a bud and I'm worried that it's bud rot. I took the spot apart and there was no visible white mold. Is it bud rot?
Week 12
Other. Mold
6y ago
1
1
Solved
Dat_Maltez_Loud
Mould on top of substrate
There is some sort of mould on the top of the substrate. I think I will spray it with diluted hydrogen peroxide. Is this a good Idea?
Week 1
Other. Mold
4y ago
3
4
Solved
GrowGuy97
To Treat PM or cut my losses?
One of my Gorilla Zkittlez has a few small spots of PW I found last night, I removed the plant from the tent and removed all the leaves I could find that had any on it but I’m not seeing any on actual bud sights. I checked her again this morning & still don’t see anything,cut or?
Other. Mold
6y ago
3
4
Solved
ZhugeTsuki
Strange spots appearing on dying leaves
What the heck is going on here? Can't tell if this is some kind of deficiency or a fungal problem, it has been very humid as of late where I live and sits around 70% RH and 80°f
Week 12
Leaves. Other
Other. Mold
Feeding. Deficiencies
6y ago
1
10
Solved
YellahJelle
Good cover? Enough light passing? I place her at inside at night. High risk of budrot?
Is this a good cover? Quite bad weather this week, but i live in northern Europe so we have a mild sea climate. The summer is kinda over but this week is more rainy and cold then usually this time of the year. Does enough light pass the cover? I place her inside a barn at night.
Week 8
Other. Mold
Setup. Other
6y ago
1
Solved
BoboLacetti
Funguns?! or normal? Deep Water culture + Top Feed
Hello, I started my first hydro dwc grow. It's a DWC with top feed (I always had that on). Is that a fungal infection on the trunk? and if so, how bad is it? what can you do? Or is that quite normal in a DWC with top feed?😱
Other. Mold
Setup. Strain · Autoflowering
Feeding. Automatic systems
2y ago
1
1
Solved
revdrjim
is this mold or mites or something else?
just harvested my white widow fem. some of the largest buds has a whitish almost cottony thing going on on the inside when i cracked them in half. i assumes it was mold but could it be mites?
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
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
sndwich
Should I be concerned?
Don't think its bud rot, leaves black on your fingers after touching?? Have removed all I can see and all dried up leaves when harvested Thanks as always
… Show more
Week 15
Buds. Other
Other. Mold
Plant. Other
6y ago
2
3
Solved
HighZenBerg
Mold on soil ?
On day 36 I discovered some strange white stuff on top of the soil in only one pot. Looks like mold and the plant seems not to be infected. Two days ago I gave both of the BioTabs Bactrex and Molasses as scheduled. Does anyone had this issue before ?
Week 6
Other. Mold
6y ago
1
1
Solved
JiggleBudz
Is this grow bag looking ok?
Should I do something about the side of my grow bag? Material bag with Coco Coir so watering/nutes schedule is frequent.
Week 4
Other. Mold
Feeding. Other
4y ago
2
3
Solved
JiggleBudz
What is this white fluff on my grow bag?
I've noticed some white fluff on the side of my grow bag. I'm guessing it's some fungus, should I be concerned at this stage? Day 23 in material bags. Thanks in advance 👌
Week 3
Other. Mold
4y ago
1
1
Solved
Nachtjasmin
Schwarze Spitzen und Flecken nach Neemöl-/Kaliseifenbehandlung in der Dunkelphase. Schimmel? Dran lassen oder abschneiden? Bitte um Hilfe!
November 3: At the beginning of the dark phase, I applied a mix of 200ml water with 2ml neem oil, a splash of rapeseed oil, and 4ml potassium soap to the plant. The reason for this is an infestation of whiteflies. I didn't apply everything. Today I see black spots. Is that mold?
Week 3
Leaves. Color · Black or grey
Other. Mold
2y ago
4
6
Solved
Ninefold
Outdoors humidity too high, mold spreading, day 72/90-95. What should I do?
Humidity outside is high, dehumidifier and exhaust don't seem to help that. Mold is spreading. She's on approximately day 72 of 90-95 according to breeder specification. What should I do?
Week 24
Other. Mold
Setup. Outdoor
6y ago
2
2
Solved
Sandero
Is this mold during veg?
All of my plants that are outdoors (different strains) Have started to turn brownish and mushy looking. We have had lots of rain, 95* temps, and 80% humidity at nights. is this the start of some kind of mold? Is there anything I can do? Thank yall!!!
Leaves. Wilting
Other. Mold
5y ago
3
3
Solved
Dean1
Problem with 80% rh for 3hours during dark12/12. my daytime. hot outside temps 28c. Don’t want to put liquid in tent rh goes even higher Hoping sweeting is problem will it course mould?
Week 1
Other. Mold
6y ago
3
2