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
Is this a Sulphur deficiency?
Pablo42069
started grow question 6y ago
What deficiency does this look like and how can i solve it? It kinda looks like a Sulphur deficiency to me. Being grown in 20L dwc bucket, GHE nutrients, calmag.
Solved
Leaves. Other
likes
rhodes68
answered grow question 6y ago
PH fluctuation to me
1 like
Complain
Selected By The Grower
AmnZhz
answered grow question 6y ago
Hi there, I totally agree with rhodes68 with ph fluctuations but I will also add and calmag def. Monitor your ph to be within the proper range.
likes
Complain
Similar Grow Questions
Solved
Fetanq
Are these scars mechanical damage? Or due to a bug?
I came back from a three week holiday and noticed one leaf with scars on several of its nodes. (the leaf on the picture has 5 scars) What are those scars and should I remove the leaf? Reposted the question because I forgot to include a picture.
Week 6
Leaves. Other
6y ago
2
Solved
kking6321
Spots on this one leaf
Can anyone provide some inside into what these spots on the leaf may be from? I know there was slight nute burn as multiple tips have indicated, but this is the only leaf I've seen with these spots. Thanks in advance!
Week 10
Leaves. Other
6y ago
4
Solved
HempKooK
Leaves maintenance
need to already apply some technique? LST / Main-Lining .. other... elapsed time : 3,5 - 4 weeks ... Thank you in advance!
Leaves. Other
6y ago
2
2
Solved
buddhi_coop
Spider mites prevention
Have any of you used this for killing spider mites. My partner had an infestation so I’ve extra cautious. I bought this & lacewing eggs which I sprinkled on the top of my soil. Would you all use these for prevention or...?
Leaves. Other
Other. General questions
Other. Other
5y ago
1
2
Solved
Smitty69
Canoeing/ folding leaves
The big girl that’s still flowering has leaves that are canoeing only some aswell more the top canopy (fan or lights?) also read somehwere possibly less watering let soil dry n breath for abit seeing it’s only one doing it out of the three
Week 15
Leaves. Other
3y ago
4
2
Solved
ArdoremArdorem
Is this anything to worry about?
I have no bugs / pests at all, Idk where this tiny hole came from but is it anything to worry about?
Leaves. Other
5y ago
4
Solved
Outdoor_farmer420
Why suddenly curly leaves ?
My S.A.D have not looked good for a few days, the leaves are curling up and some of the leaves are turning purple / red. Is that because of the cold? Last week it was very cold and rainy, between 6 and 13 degrees. Over-fertilization is impossible, I have only fertilized minimally
Week 6
Leaves. Other
5y ago
4
2
Solved
PeppaWutz
Cut off leaves for better bud development?
I saw some diaries where plants have nearly no leaves and produce a nice amount of good looking buds. Is it recommended to cut of most of the leaves at the end of flowering, that the energie goes into bud development?
Week 9
Leaves. Other
Plant. Other
Techniques. Defoliation
5y ago
5
4
Solved
Dreambud
What do these spots mean ?
what do these spots on the leaves mean ?
Week 2
Leaves. Other
5y ago
2
1
Solved
Filippo
Why this?
Leaves. Other
6y ago
2
Solved
ConnoisseursDelight
Little brown spots on new growth
There are little brown spots popping up on the new growth of one of the plants. I’m not too concerned, but what could this mean?
Week 1
Leaves. Other
3y ago
3
2
Solved
KrazyK
Trimming during flower
Flipping from veg to flower, how much should I trim the fan leaves around the bud sites, how much should I trim as the buds grow? Do these fan leaves become bud and stems? When should I stop trimming completely? Thank you.
Buds. Other
Leaves. Other
6y ago
2
3
Solved
FR_PhenoFinder
What is happenning to her ?
Is it a mutation? Too much nutrients? Help me figure out what happened to this Grand Daddy Astrologist ?
Week 3
Leaves. Other
6y ago
2
4
Solved
MiraGrow
white spots on main leaf
I just saw that she has some white spots on her main leaf (this one only has one main leaf), Anyone can identify what that might be? I should mention that yesterday when I woke up she was fallen down on the soil because of some unusual strong wind in the night.
Week 3
Leaves. Other
6y ago
1
1
Solved
Bucket_Buds
Light spots on the lower leaves of my plant
Light spots on the lower leaves of my plant, I looked at a lot of websites but I can't seem to figure it if and what deficiency this would be, are they just getting to little light?
Leaves. Other
4y ago
2
Solved
elevensixty6
Still to early to tell? Noticed yesterday and have slightly worsened today. Not sure the issue but potentially magnesium? Getting close to top dress also.
Only on 1 of 3 plants so far. On older growth after getting dose of Recharge the other day. Maybe an N problem as I also use 484? Or mag? Using CalMag every other watering in RO at 150ppm as the soil has some cal and mag. Also getting close to top dress time maybe something else?
Week 4
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Other
4y ago
4
Solved
SirTucksAlot
Letting in more light?
Should I defoliate again? And if so which leaves should I target? Thanks guys
Week 10
Leaves. Other
5y ago
2
2
Solved
BigBadLion
Same strain, different color leaves.
Why my plants have leaves with different colors (one is darker) when they are the same strain? Both grew with the same fertilizers and while they had issues in early veg. they recovered but developed quite differently! It's the phenotype? Or the issues in early veg. caused this?
Week 19
Leaves. Other
Plant. Too short
6y ago
6
5
Solved
Jaygrow1020_autoking
Bugs
Can anyone tell me what kind of bug is doing this and what can I do to get rid of it?
Week 3
Leaves. Other
Other. Bugs
5y ago
4
3
Solved
Khmma46511
Spotted leaves
I swear its been one thing after another, So changed nuts to open sesame did less the the required amount and this morning my leaves yet again have issues brown spots. Spayed her down with insecticidal soap last night. 2nd are my flowers/buds ok? Can she survive or.. 3w flowering
Week 13
Buds. Other
Leaves. Other
6y ago
3