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
Are these blotches calmag deficiency?
AlienFarm
started grow question 5y ago
Are these blotches calmag deficiency?
Solved
Leaves. Color - Mottling
likes
Fruitgrower
answered grow question 5y ago
Don't think so or you'd ewe it on more than one leaf. Could be just spillage of nutrients burnt on by magnification of the light
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
RamboGringo
Discoloration and slight mutation
My seedling has discoloration and slight mutation. I Need help. Not using any nutes yet, using distilled ph’d @6.5, grow light is about 36 inches away. I checked for bugs, and didn’t find anything
Leaves. Color - Mottling
5y ago
2
1
Solved
Hongo
Please look at the leaves shown, orange and dried parts. I asked a similar question earlier but these look more damaged and I'm wondering if it's worsened due to my setup. Wind damage from fans? Water damage from humidifier? Light or heat damage? Managing VPD is tough. Thanks!
Week 8
Leaves. Color - Mottling
Setup. Strain - Autoflowering
Setup. Ventilation
4y ago
5
4
Solved
Mr_ROCKET
What are this dark blurs?
Today I found this dark brownish/bluish blurs on these two leaves. Does anyone know what are they? My plant is on her last weeks and I am not feeding her but with ph'ed water.
Week 10
Leaves. Color - Dark-brown
Leaves. Color - Mottling
6y ago
3
3
Solved
Untiedmymind
Starting to see yellow gold spots
Top cola starting to show gold spots and pistils turning brown little quickly
Week 13
Leaves. Color - Mottling
5y ago
1
1
Solved
JohnD
Leaves are look sick.
First set of /lower/ leaves are getting sick I presume, and surely gonna fall off. Definitely not looking ok to me, maybe they just age out?!? If anyone have a idea what's causing thins - please leave a comment. Thanks in advance!
Week 5
Leaves. Color - Mottling
5y ago
4
2
Solved
NewbieDoobies
Hi, I’m getting worried about black spotting on a few leaves,white underneath/black on top they are only small? Is this calcium deficiency? I had a ph of 5.3 run off when I noticed, which I got back to 6.2 after a flush no using ph perfect nutes PLEASE HELP I hope it’s not serious
Week 6
Leaves. Color - Mottling
7y ago
2
1
Solved
Gottajiboo
Discoloration???
Noticing slight discoloration on Gelato, running in living soil, does this still have something to do with a nutrient deficiency? Has anyone encountered something like this?
Week 3
Leaves. Color - Mottling
4y ago
6
6
Solved
kakanero
Does anyone know what happened on the leaves and how to cure it? See the last photo. Thaks!
Week 8
Leaves. Color - Mottling
7y ago
1
2
Solved
THCanbisGrower
What happen with my leaves?
There are brown and red black spot on my leaves. and lower the top there are brown red and white spot mix together on my leaves. anyone know this problem?? Thank you. 😂
Leaves. Color - Dark-brown
Leaves. Color - Mottling
Leaves. Other
4y ago
3
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
7y ago
6
5
Solved
Chedsmoke
Auto seedling discolouration
This discolouration has appeared on the leaves of one of my two gorilla glue autos, it has been there since the first true leaves which makes me think it could be genetic? I’d like to know if anyone has more information on the cause or if anything needs to be done about it.
Leaves. Color - Pale
Leaves. Color - Mottling
5y ago
1
1
Solved
Chemdawg1
Browning/White Spots on leaves
In need of assistance. I’m about 2 weeks into flowering stage on an outdoor grow and decided to give plants some bone meal. I’m growing in organic soil and use fox farm trio for nutrients. used bigbloom/tigerbloom mix (3:2) in 5gal drum 3 days ago and fed bonemeal 1 day ago.
Buds. Not fattening
Leaves. Tips - Burnt
Leaves. Color - Mottling
5y ago
3
2
Solved
LottaBuds
Leaves fading and dying, started from bottom but spreading
I’m starting to be at a loss with this. Calmag issues earlier in veg, seemed to improve for a while but now bottom leaves started to die - I thought this was just due to beginning of flower but it’s getting worse and spreading even to healthier new growth. PH (should be) fine.
Week 6
Leaves. Dropping off
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
1
4
Solved
420_Little_Green_Fingerz
Deficiency?
I think I have an issue here which could be a calmag deficiency please could I ask if you think im right? Thanks
Week 5
Leaves. Color - Yellow
Leaves. Color - Mottling
Feeding. Deficiences
5y ago
4
4
Solved
New_Grower69
Hi guys noticed a few mottled leaves at the bottom of my plant any idea what this could be?
Week 9
Leaves. Color - Mottling
6y ago
1
Solved
BelSun_420
Normal or should I be careful?🤔
First time I see these little dots on the leaves, can anyone identify them or is it nothing to worry about, as I'm thinking? 🧐🤔
Leaves. Color - Mottling
2y ago
2
Solved
Natrona
Soil issues, yransplant or not?
Should I amend the soil mix with a seed start mix right around the seedling? I think the soil is too hot. If so, how to achieve this without transplant?
Leaves. Color - Mottling
1y ago
2
2
Solved
taprootArmy
Why do my plants only have that light greenish yellowish look at the top and why is one of my plants also having those sick leaves at the bottom?
2 of my 3 plants are a bit yellow-ish at the top since about a week. Plant 1 also had a couple of sick leaves at the bottom that I did remove. Those leaves had brown/dark spots, felt dry like paper, had very purple stems and did smell more like hay. More info in my report.
Week 6
Leaves. Wilting
Leaves. Color - Yellow
Leaves. Color - Mottling
2y ago
5
3
Solved
MicroPlant
Brown dots
White Widow Auto RQS 9 weeks old Third grow. My plant started making brown spots one week ago. Today, the problem continues. I feed my plant with Pelargon Terra Bloom, sometimes add Pelargon PK13-14. I don't control ph level, but previous two plants don't have this problem.
Leaves. Color - Mottling
5y ago
1
3
Solved
Kindbudz
Having an issue where the leaves are spotting Brown. I’m adding cal-mag and am not having this issue on any other plants except for this one. I thought it could be from misting the air with a spray but stopped that for a while and it is still continuing.
Week 3
Leaves. Color - Mottling
8y ago
1
3