The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Yellow spots on the leaves
Snider23
started grow question 6y ago
Hi Growers! Could you give me advice what are these yellow spots on the leaves, and how to resolve this problems? It is critical issue? I am beginner so every advice is welcomed :) thanks in advance , happy grow!
Solved
Week 3
Leaves. Color - Yellow
likes
KingJayGardens
answered grow question 6y ago
almost looks like a pest issue... possibly russet mites.. is this outdoors? Indoors? Do you have any IPM programs in place yet?
2 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
Stixere
Leaves
What can be wrong and what should I do?Biobizz fertilizers(Grow, Bloom, Topmax). 6 weeks.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
boundar48
Runtz XL Auto leaf nutrient issue, any help is kindly appreciated.
My Runtz XL Auto from Sweetseeds started having some leaf nutrient issues and I am not entirely sure what's the problem over here. It's my second grow so I don't have that much knowledge ...learning day by day😁
Leaves. Color - Yellow
1y ago
1
Solved
tJams663
big bang yellowing
yellowing in my big bang#3 help please.
Leaves. Color - Yellow
5y ago
2
3
Solved
Architect
WTF IS THIS
hello guys, is this deficiency? 50% coco 50% light mix because I thought that with 100% light mix I had toxicity, I did not add extra nutrients , humidity 35% something I will fix
Leaves. Edges burnt
Leaves. Color - Yellow
5y ago
1
1
Solved
JoshuaTreez
Nitrogen Toxicity? The Claw? Potassium Deficiency?
Is this the claw? Is it Nitrogen toxicity or Potassium deficiency? It had been awhile since the last feeding Thanks guys
Week 6
Leaves. Color - Yellow
5y ago
1
1
Solved
FingersCrossed
What's wrong?
What's wrong?
Week 2
Leaves. Color - Yellow
5y ago
2
1
Solved
XII_XII_MrGreen
Leaves turn yellow/lightbrown
Leaves turn yellow/lightbrown, already flushed gave extra calmag. No other plants in the same space/conditions have this problem.
Week 6
Leaves. Color - Yellow
5y ago
2
1
Solved
GoldenWeedGrower
What the f**k is this ?
Hi guys, this is not from my diaries, but from a my friend grow. He have some issues with his grow and he asked my opinion about: I went there to analye and here what I find out (see pictures). I have a guess about, but I would like to listen community opinion first. Thx mates 🙏
Leaves. Curl down
Leaves. Color - Yellow
3y ago
3
4
Solved
HAPPYWEEDS
Yellowing leaves and yesterday curl down leaves after watering
I'm growing in coco. Is 500ml/2 days too short watering? Last growth happened the same with lower leaves (yellowing). It was because of nitrogen deficiency. But EC go to much up if I add more fert. I'm at 5.7 pH and 1.2 EC, 25-26°C and 65% RH now. That's why I use worm humus.
Leaves. Color - Yellow
4y ago
3
4
Solved
Jake75uk
Yellow leaves working out towards tips
Yellowing of lower leaves, from the stem working towards the tips. It’s been hot and they’ve been home alone for 5 days with just one water on the 3rd day. They had a small amount of bloom just before I left! During veg they were on fish mix, but not very much (1/2 dose).
Week 5
Leaves. Color - Yellow
5y ago
2
2
Solved
THC_Hazeman
Is that a sign of overwatering?
Is that a sign of overwatering or nutrient deficiency?
Week 5
Leaves. Color - Yellow
3y ago
1
Solved
Jake13255
What is this deficiency?
They started off with some brown spots and progressed. Is this phosphorus? I have been feeding with .5-1ml of dyna grow bloom and 2ml of cal mag per gallon watering at about 6.3-4 ph. But i recalibrated my ph pen and did one water since.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
4
Solved
Smeags
Leave spotting
Nute burn? Thrips? Some of those leaves where tucked aggressively at one point. I'm leaning towards nute burn. Think I over did it a little.
Week 4
Leaves. Color - Yellow
6y ago
1
Solved
Growjardin
Yellowing of leaves
In 16 days lower leaves are yellowing and on one a burnt tip. 3lt fabric pot 150ml water eod ph 6-6.5 candy kush exp. been slowly happening for 4-5 days. Humidity can’t be sorted for 2 weeks
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
2
2
Solved
spaceweedgrower
Yellow spots and droopy leaves - RQS Shogun photo
Hi! 2nd week after 1st true leaves. 70/30 buffered coco/perlite. Terra Aquatica Tripart. Feeding 2×/day, 200ml in, 100ml runoff. Always 1.5ml/L CalMag. pH ~5.9, EC diff ~150–300. Suspect calcium def., leaves droopy. 18/6 200w led 60cm. Room 23C, ~70% RH. Any help appreciated!
Leaves. Color - Yellow
10mo ago
1
2
Solved
Dday314
Deficiency? Bleached leafs?
Hello growers, new to growing and dont want to shoot myself in the foot, leafs seem discolored, possibly a heat factor? Or deficiency?
Leaves. Color - Yellow
6y ago
3
4
Solved
Maincard
Still have problems
Still have problems, day 41,ph 6,5 tap water. Could it be Mag.? Use LED. THX.
Leaves. Color - Yellow
4y ago
2
2
Solved
Rumham
Small red spots on top canopy leaves week 4 of flower
Deficiency of some kind. Leaning more towards a calmag shortage or even a phosphorus deficiency? Any thoughts? Small red spots with minor yellowing of leaves in week 4 of flower.
Leaves. Color - Yellow
5y ago
2
Solved
TheeLemon
Yellow/brown leaves
Noticed a brown/yellow colour starting to appear on my leaves. I don't think it's from the light being too close, so most likely too much/not enough nutrients. Any ideas?
Week 9
Leaves. Color - Yellow
3y ago
3
Solved
Viccrazyweed
Critical showing deficiency or excess, anyone know how to solve it???
One of my beauties is showing for the first time a nutrient issue, a couple of leaves are showing yellow colouring, the very rest of the plant is homogeneous deep green so i assume she is almost fine, but i really want to listen to her and care, I think it could be nitrogen def
Week 13
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
2
3