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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
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Answer
Wild_Bill
answered grow question 5y ago
White Powdery Mildew
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Complain
GrowCN
answered grow question 5y ago
What is WPM?
1 like
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Similar Grow Questions
Solved
Dingle_Dangle
How to deal with WPM (outdoor)
Any tip on how to deal with WPM (white powdery mildew) when growing outdoor in suboptimal enviromental conditions? (I remove it when it's on the leaves, but it's impossible when it's on the flowers)
Other. Mold
4y ago
3
Solved
greenflipcali89
How to treat (NOT prevent) Powdery Mildew on a flowering plant (week 4)?
Ok, here is a question to ALL growers out there. How do you remedy Powdery Mildew on a flowering plant? I gave her a major defoliation and sprayed the milk/water sol'n. So HOW do you treat PM? Milk/Water or H2O2/Water? Or?? Suggestions?
Week 12
Buds. Other
Other. Mold
6y ago
2
4
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
illegal_brain
Potential bud rot?
My critical cure has some of the smaller leaves near and in the buds which are starting to turn rusty brown. Is this a starting sign of bud rot? Should I cut them early? I do not see anything abnormal under the microscope or when separating the large buds by hand. Thanks!
Week 15
Buds. Other
Leaves. Color - Dark-brown
Other. Mold
4y ago
8
4
Solved
qoodwater
Rain and harvest
Should I cut?? Or risk the rain??! In 1 week it will rain!!
Leaves. Tips - Thick
Other. Mold
Other. Harvest - Drying
4y ago
2
3
Solved
HAPPYWEEDS
Mould in soil
Which is the best way to eliminate mould completely? It hasn't affected the plant yet but obviously I want to eliminate it as soon as possible and in the most effective way, what do you recommend? Help for a colleague (=
Other. Mold
4y ago
5
6
Solved
SavageGarden
I felt that I might get mold problems cause of high humidity, and saw an little yellow/brown under the top bud. Has just opened a bud and could see mold in one place on a bud under top bud. Should I chop plant now? Or should I just remove that one bud? :(
Week 13
Other. Mold
6y ago
1
1
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
pattyG
Mold on coco surface after top dressing
HELP! My plants are in week 4 of flower and I gave them an organic top dressing about 4 days ago. The entire top of the coco is now covered in white/grey mold! I tried hydrogen peroxide yesterday but it just grew back stronger overnight. Will this spread to the buds???
Week 12
Other. Mold
5y ago
2
2
Solved
KushAllDayLong
WHITE MOLD ON TOPSOIL
MOLD on TOPSOIL..Not enough air flow in new tent and humidity was off, still dialing it in & I don't have gadgets to help, on a budget.I sprayed peroxide and removed mold and turned up the fan and also lowered lights a little...advice? Picture taken was after removing most of it
Week 8
Other. Mold
4y ago
10
3
Solved
OneDropOfTHC
Bad soil can i change the soil halfway? 20lt pot 5th Week stunned grow for 2-3weeks. Not gonna give up on her might aswell kill her trying?
Is it a bad idea to repot her with new soil, as one of my regulares had to be repot. I tryed to remove old soil, and gave her new soil, and she improved even more than this one who only got the ph fixed with vinegar. But the regular was on a 1lt pot. Thank you!
Other. Mold
5y ago
5
Solved
FourTwenty_Plants
Powdery Mildew
I got some powdery mildew on 1 of my plants any Ideas what would help to get rid of it? Kinda scared to spray some random shit on them cause of the fact that they are in flowering phase
Week 14
Other. Mold
Setup. Outdoor
2y ago
8
4
Solved
Babajipaz
Could this be mildew?
Hi all, I've been stressing out about high humidity levels in my tent, and a chemical smell when I smell my fingers after running them through the buds. Could this be mildew? Or just very frosty buds? On the microscope I see thin "hairs", but looks like undeveloped trichomes...
Week 15
Buds. Other
Other. Mold
4y ago
1
3
Solved
Mooncat
Expanded clay layer on bootom for better drainage
Is placing a layer of expanded clay on the botton of your pot a good idea? i only tried small rocks before for the drainage but heard those claypellets might work better (and are lighter)... Someone any expierence with that?
Other. Mold
Setup. Substrates
6y ago
1
1
Solved
JennK82
My plants might out grow my space. Any tips?
Week 10
Other. Mold
7y ago
2
2
Solved
GeekSayWhat
White dusty looking stuff
I have a pure white substance on the top of my soil, should I be worried. My RH is at 50% and temp is around 26 in the day, and 21 at night. It doesn't seem to be effecting the plant at all. What should I do? Thanks
Week 5
Other. Mold
6y ago
2
2
Solved
MediciGrade
Bleu (largest of the 3 plants) is ~14 days behind the other 2. Is such a variance in size & rate of maturation common when growing from seed? Does LST/HST amplify the differences between phenotypes? She's so tall I'm worried about light stress. Should I reduce the light schedule?
Week 9
Other. Mold
7y ago
3
3
Solved
Top_Banana
Grey Mold?
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..
Other. Mold
5y ago
4
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
MMSC16
PM covered plant sentenced to death - What would you do?
I'm about to destroy this plant. Each branch has heavy PM despite having ample airflow. I suspect due to the lack of direct sunshine, but I'm sure it's spread to other plants which will also be destroyed. Is there anything I can do to salvage? What would you do? Thanks!
Week 15
Other. Mold
2y ago
6
6