Check the winners 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
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
What causes these spots?
schmiddo
started grow question 2y ago
Does anyone have any advice? What causes these spots on the leaves? See description in week 5 of the diary
Solved
Week 5
Leaves. Color - Yellow
Leaves. Other
likes
Scrubbyjimbob
answered grow question 2y ago
I think you got more than one thing going on with this plant. Definitely a rootzone problem, either overwatering or pH. Address this first before playing with your nutes, they may be linked.
4 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
mf_bazinga
Hello growers,found on my 1st plant 2 yellow fan leaves getting yellow,and found aome wierd things on it under microscope,can be bug or nothing to worry?
Leaves. Color - Yellow
Leaves. Other
7mo ago
1
1
Solved
Lasninasverdes
¿Qué creéis que le pasa ?
¿Qué opináis ? Riego con biobizz 1,2EC Humedad 40%. Temperatura 24-28 grados centígrados. Ph 6,1
Leaves. Color - Yellow
Leaves. Other
Plant. Other
4y ago
3
2
Solved
GhettoStyle
Ph 6.3 EC 1.3
Friends I asked the same question earlier! and it was decided to raise the EC !!! As a result, the EC raised! and the problem didn't go away(
Leaves. Color - Yellow
Leaves. Other
Feeding. Other
5y ago
1
2
Solved
soflo
Please help! What am I doing wrong? I’m a first time grower
My leaves were burning and now I know that I am burning it with nutrients cause my soil already got nutrients. I’m only using water now but now they are turning yellow and the big leaves have spotting. What’s the problem now and how can I fix it?
Leaves. Color - Yellow
Leaves. Other
6y ago
2
Solved
DazeDreamer420
What should I do next?
Was reading 1870ppm at 5.6 so i flushed 20L water threw till I got 6.3ph and 950ppm and let dry. Feed the other day 4L at 50% nutrients strength 840ppm and is seems it's gotten dramatically worse since then. Before it was very slowly getting worse. Worse at the top now too.
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Other
6y ago
5
8
Solved
GREENGENERAL420
Hi all growers, can someone pls help met to identify whats happening to the leafs of this Northern light auto.. Is it a deficiency of Potassium or Magnesium or did the leafs just got light burned or what do you think 🤔
Leaves. Color - Yellow
Leaves. Other
5y ago
3
Solved
Lew420
Deficiency or excess?
Looks to me like potassium deficiency leading to calcium and magnesium deficiency also... Any other suggestions?
Week 4
Leaves. Color - Yellow
Leaves. Color - Mottling
Leaves. Other
4y ago
2
3
Solved
DabbertGlobberfield
Problems showing up in week 5 flower
I have a problem developing and showing signs through this week. Looks like at least a calcium and a potassium deficiency in one plant and a another deficiency just starting in another. Not sure how to fix this. First 8 are one plant, last 2 are another. Photos taken over a week
Week 20
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Other
3y ago
1
6
Solved
Gift_from_Nature
My plant has nutes burn AND Phosphorus deficiency...
Hi! I started week 4 of flower with a PK excess (nute burn) so I flushed the medium. I started the nutes the following watering cause I saw some PK deficiency appearing. But now, my plant shows signs of both nute burns AND Phosphorus deficiency. What should I do? flush? feed? thx
Week 8
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Other
6y ago
1
1
Solved
Rando1314
Leaves supposed to be this yellow? 2 weeks from harvest
So ab a week and a half ago I sprayed my plants w a h/p 1/10 ratio to get rid of some pests and it worked no effect on plant.Only other things that’s changed is I introduced ladybugs to help kill remaining pests if any.Also 2 wks from harvest.are leaves supposed to be this yellow
Week 13
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Other
6y ago
3
3
Solved
Jobbie
Sanka... are ya dead?
I noticed the leaves getting spots and the leaves yellowing then going crispy, if younlookmat the diary, sorry it is a bit on and off, for grow info scroll to the bottom of text to skip my stories. My research says either PH or Calmag, can't see any obvious pests. Please help!
Week 11
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Other
4y ago
4
3
Solved
Cremo
Dry spots on sugar leaves, plant late in flowering, also spotted on another one in the same reservoir
Hi guys, my plant is around 2-3 week before harvest. What is the cause of the these dry spots on some of the smallest sugar leaves on my plant? The ppm might be too much and is around 1200-1300ppm. PH is 6.0-6.1 I've spotted it on one other plant in the same reservoir. Thank you
Week 8
Leaves. Color - Yellow
Leaves. Other
5y ago
5
3
Solved
buddhi_coop
Yellow tips on new growth
What do the yellow tips on new growth mean?
Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
1
1
Solved
Chronigmatic
Pattern on leaves
Got this pattern on a section of the girl. Not the whole plant any guess??
Week 8
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Other
6y ago
1
1
Solved
GhettoStyle
I do not understand why the veins of the leaves are light yellow!!
Friends I need your help! I do not understand why the veins of the leaves are light yellow!! is the EC too high? or, on the contrary, too low EC!! The EC level of these girls was 0.7 EC but yesterday I lowered it to 0.6 EC! Friends please help me understand why I have yellowing!
Buds. Other
Leaves. Color - Yellow
Leaves. Other
5y ago
1
1
Solved
JackJolla
High Leaves stress in the last week!! PLS help!
Hi everyone! First indoor grow with autoflowers. Everything was fine until week 6, even after topping, but now in mid-flower the leaves show clear stress. I thought it was CalMag, but supplements haven’t helped. Any advice? I don’t want to lose my first harvest.
Leaves. Too many
Leaves. Color - Yellow
Leaves. Other
24d ago
7
6
Solved
GrowGuy97
What’s wrong!
Any ideas what’s wrong with this plant? None of my other orange sherbets look like this & they are all in the same environment & getting the same nutrients?
Week 2
Leaves. Twisted
Leaves. Color - Yellow
Leaves. Other
6y ago
2
2
Solved
JinksyGrows
Alright peeps, here's one for you. Still don't know what it is. Pictures attached to Week 9, Veg. This has been occurring since week 3. There has been NO spread, it is always localized to only 1-2 leaf blades and she is not stunted at all (largest girl). Please PM for more info
Week 9
Leaves. Color - Yellow
Leaves. Other
6y ago
2
1
Solved
Jaythegrower
Lime green leaves
I woke up an my new leaves are a lime florescent color can anyone explain and help me remedy the situation
Leaves. Color - Yellow
Leaves. Other
5y ago
1
4
Solved
ZhugeTsuki
Possible calcium def. or other issue affecting leaves and buds
Is this a calcium issue, and if so why is it spreading to this one bud in particular? There are four photos of the effected bud, as well as a few shots of unaffected buds to compare. Also have spotted leaves that look like ca issue but not sure why its spread to the one bud.
Buds. Other
Leaves. Color - Yellow
Leaves. Other
6y ago
4