The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Manchas blancas
johnny_farmer
started grow question 5y ago
Desde el principio salen las hojas con manchas blancas. Porque pueden ser?
Open
Week 7
Leaves. Color - Mottling
likes
Answer
Hashy
answered grow question 5y ago
Most likely powdery mildew. It's a problem I find outside. Not found anything really to prevent it. I have noticed certain strains don't seem to do it as much like Northern lights.
1 like
Complain
Similar Grow Questions
Solved
Growpotkin
The rust spots on the leaves are getting worse. I flushed twice and fed with a bit of extra runoff, but a day later and the curling burnt ends look like nute burn. Any thoughts would be great!
Week 10
Leaves. Color - Mottling
5y ago
3
4
Solved
m0use
Look At This Pigmentation!
Lower fan leaf vs upper fan leaf in the canopy. The difference in pigmentation is wild! It almost looks like its bleeding. . , , , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?Why?
Week 11
Leaves. Color - Red or pink
Leaves. Color - Dark-purple
Leaves. Color - Mottling
2y ago
3
6
Solved
Cogollo_eu
I'm still guessing what caused the disease i noticed on a single plant the first weeks of grow. A disease that didn't spreaded at all, and that affected only 2 leaves. You can see it on (Week 2 - Photo 21), (Week 3 - Photos 7, 11 & 17) & (Week 4 - Photo 4).
Week 7
Leaves. Color - Mottling
7y ago
2
2
Solved
Hvk1907
Leke problemi
Arkadaşlar bu lekeler neden kaynaklı?
Leaves. Color - Mottling
5y ago
1
2
Solved
WooderIce
Can someone look at my newest pics? 1 of 4 plants (shortest of the 4, so its not light burn) has about 6-8 fan leaves like pics. Happened 36hrs after i did a big flush, that brought my ph down around 6.7. I think its either too much nutes, or lacking phosphorus. Help!
Week 8
Leaves. Color - Mottling
7y ago
3
3
Solved
Lol_You_Looked
What could be causing these spots and burnt tips?
I noticed this starting this morning, the pH was 6.3 and 210 ppm. The water was about 7-10 days old. So I figure water change time?
Leaves. Tips - Burnt
Leaves. Color - Mottling
3y ago
1
1
Solved
Growpotkin
Purple spots on leaves?
A few leaves have started showing purple spots, some with pale green/whitish bits as well. Picture above. Any help would be great. I’ve been feeding on the BioBizz schedule every second watering, usually every other/every third day.
Week 9
Leaves. Color - Mottling
5y ago
6
3
Solved
DrJawn
Lower fans have brown splotches.
Lower fans have brown splotches. Eventually yellow, crispy and die. Otherwise she looks healthy. Growing in a3 gal plastic pot, recycled build a soil - perlite, Coco loco and home made compost. Soil Ph unknown. Water Ph 6.5 feeding roots organic full reg every other feeding.
Leaves. Color - Mottling
6y ago
4
4
Solved
nugsofun
Some kind of deficiency?
World of Seeds Strawberry Blue. Pretty slow, uneventful life this far (on me). What seems to be wrong? Veg and a lot of light. FoxFarm soil. Half to full strength of the General Organics line. Bottom main fan leaves going first. Please refer to pictures. TY for any input!
Leaves. Color - Mottling
Plant. Too short
Feeding. Deficiences
5y ago
8
4
Solved
Vril_Ya
Root rot or pH imbalance?
This blueberry muffin (f) plant was doing well until last week when it started deteriorating. Its grown on a mix of cocopeat, vermicompost, perlite mix and fed on compost tea and cal-mag mix. I might put it down eventually but I checked the pH and it was 5!
Leaves. Edges burnt
Leaves. Color - Pale
Leaves. Color - Mottling
1y ago
4
2
Solved
Habosabin
Is this Yellow spot septoria?
Hi gromies. Is this yellowing caused by septoria? Or just normal N deficiency during flower. I can see minor pest remains ob leaves and stuff but not affecting plant overall. Plant in good air flow and humidity around 50% so I question whether it's septoria. thx in adv.
Week 11
Leaves. Color - Mottling
5y ago
2
2
Solved
Fitzwell
Think I need to add more cal-mag might be turning into a cal-mag whore? We will see....
Week 10
Leaves. Color - Mottling
6y ago
6
5
Solved
ReginaldJohnstonX3
Horrible deficiency took over all the leaves this week. Any one have any ideas?
Leaves. Color - Mottling
6y ago
3
3
Solved
DudeGrowsWeed
Kill, Fuck, Marry? She's almost 8 weeks old growing really slow. Still has the same odd coloring on leaves. Tried defoliating the most affected leaves. But no improvement. Should I kill her and cut my losses? Say fuck it and leave her grow? Or marry and try new solutions?
Week 7
Leaves. Color - Mottling
8y ago
3
4
Solved
Kirsten
Leaf Problem persists and develops, advice?
Ok, I've noticed the leaves now becoming mottled, and browning. It is on the sugar leaves now, and I'm concerned over botrytis! Last question on this, the consensus was foliar spray. Any ideas why it seems to have progressed?? What should I do?Thanks all, so much! 🙏💚☺️🌱✌️
Week 11
Leaves. Color - Mottling
6mo ago
8
5
Solved
oppilF
Brown spots on leaves
Spots, starting to increase on more and more leaves. Please help!
Leaves. Color - Mottling
5y ago
2
Solved
IbeBryBry
Ca,Mg,Fe,Cu,ect deficiency?
If anyone can see the third or fourth picture there is a decent shot of a deficiency. It's some immobile nutrient like Ca,Mg,Fe,Cu, ect. I just can't figure it out, been supplementing with CalMag fog almost 2 weeks? Any suggestions? Possibly Cu deficiency?
Week 12
Leaves. Color - Mottling
4y ago
1
3
Solved
Misanthrope
Leaf damage/discolouration
The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?
Week 11
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
2
2
Solved
growpraesi
Was sind das für Flecken?
Es ist kein Mehltau und sind keine Tiere. Blattunterseite unauffällig. Es lässt sich nicht abreiben oder entfernen, wird im Verlauf des Wachstums stärker. Pflanze entwickelt sich ganz normal. Könnte es ein Mangel oder Kalk sein? Wasser sehr hat mit Ph 7,8, wird aber korrigiert
Leaves. Color - Mottling
3mo ago
6
Solved
TheReefinery
What deficiency?
There's a few spots that have come up on her leaves a few weeks ago. I just wanted to get a second option that's it's a calcium deficiency!! Tah in advance!! 👊
Week 5
Leaves. Color - Mottling
Feeding. Deficiences
4y ago
1
4