The Grow Awards 2026 🏆 
What is this white fluff on my grow bag?
JiggleBudzstarted grow question 4y ago
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 👌
likes
Hashyanswered grow question 4y ago
Most likely excess salt from the nutrients. Happens a lot. Sometimes can be mould but most the time its just salts
Similar Grow Questions
Solved
Cremo
What to do with a moldy bottom?Hi guys.2-3 weeks ago I squeezed one of my plants at the bottom too heavily and it started to dry out at the outer layers.A week ago I poured some fresh water with nuts on the "wound".This week it recovered very well but the dried out bottom got some mold I believe.What do I do?Week 6
Other. Mold
6y ago
4
4
Solved
Stuyvyjuana
Height issue. Small tent. LED as high as it will get and the tops of my newly flowering efforts are a mere 3 inches from the grow light. A few fronds have burned a little. My ScrOG is nearly as high as it’s going to go. Is there a way to decrease height. Stakes in soil ?Week 6
Other. Mold
7y ago
3
Solved
guerilla
Bud rot?????Hi. Iv just noticed this 1 bud is really dry and brown.. I hope it's not bud rot 😬Buds. Other
Other. Mold
Other. General questions
5y ago
1
3
Solved
iopiopiop
WPM! Help!Soooo... today I found some quite heavy WPM between buds. Just a few sugar leaves were completely coated in white. So I lowered the rel. hum und sprayed the buds directly with h202. (non-diluted)
Will the plant survive untill harvest? Shouldnt I have not sprayed the buds directlyWeek 12
Other. Mold
6y ago
1
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
6y ago
3
3
Solved
AvoidingBananas
Mouldy, webbed budsThe 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
3y ago
3
Solved
nancypotwin
white fuzz? mold? salt buildup?hi i am a new grower and my seedlings just sprouted! today i noticed a little bit of white fuzz looking stuff and wanted help identifying it... the lighting might make it hard to see. i tried to include the edge of the pot so you could see the little white dots there as wellOther. Mold
Setup. Seedling
6y ago
1
1
Solved
sorethumb
humiditythe humidity has been controllable with my a/c… but we just had a few days of rain and humidity. my plant has a mildewy smell. i see no signs of mold at this time… is it time to play it safe and get a dehumidifer?, or will a couple days of 55% humidity be enough to stave off moldOther. Mold
4y ago
1
1
Solved
Edenganj
Yellow spots/ mildewHi again,
This is my roommates plant. I think it’s starting to get some type of mold on it. I spotted yellow and white specs.He sprayed it down with baking soda and water I guess, not sure how effective that is. what should he do? (Updated pics)Leaves. Color - Yellow
Other. Mold
5y ago
2
2
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.5y ago
1
Solved
Raf87
Mashrooms and Plants HeightIs the height of the plants too much? They seems too high and weak.
As you can see in the pictures I have to remove mashrooms every day, I reduced humidity value down to 55% and I keep open the room window and closet door to ensure air recirculation. Is it so bad?4y ago
4
3
