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
Orange/Brown spots
Rebelgoose
started grow question 5y ago
I need some help. One of my plants has started to get orange/brown spots on its leaves and some lower leaves are yellowing a bit too. Its not bugs and its.not light or heat burn. Any Ideas?
Solved
Leaves. Color - Mottling
likes
NorthernFrostCannabis
answered grow question 5y ago
Calcium Deficiency IMO or Manganese Deficiency... Hope this helps, https://www.growweedeasy.com/cannabis-symptoms-pictures
1 like
Complain
Selected By The Grower
Similar Grow Questions
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
BranchRanch
Can anyone help me identify the cause of the rust-colored spots on a couple of these lower leaves? I am guessing some kind of nutrient burn.
Week 3
Leaves. Color - Mottling
6y ago
6
6
Solved
Kindbud421
What deficiency am I looking at?
So, it’s looking like I have a deficiency on 3 of the four in my 4x4. Lights are 2x kingbrite 240w 3500k and marshydro ts600. Total 570w. Lights are 30” above plants. Temp and humidity are 77-81deg F and 66% well water at 6.5 ph. Megacrop 1gpg at 1 lt each.
Week 4
Leaves. Color - Mottling
5y ago
2
1
Solved
Satori_Hanso
I need some help identifying occurring problem on leaves. It only affected one plant. Other one is fine. They are fed the same amount of nuts. I found gnats flying around and I used neem oil on top soil and leaves. Please HELP ! 😱 😖
Week 8
Leaves. Color - Mottling
7y ago
1
Solved
Elendil
Some major problem
What is this? Do I put something too much or too little of it ?
Leaves. Color - Mottling
5y ago
1
1
Solved
Greenbean15
Curled leaves occurred in both veg and flowering tents only to my purple trainwreck plants. Checked leaves with a loupe and couldn’t see signs of any pests at all. Only occurring on my PT plants in all tents. Other strains seem 100%. Only on large fan leaves, any ideas or help?
Week 6
Leaves. Curl up
Leaves. Color - Mottling
6y ago
2
2
Solved
Kirsten
Copper colour, brittle dry patches, any idea what this is caused by?
Does anyone know what this is caused by? I've had it on several plants in the past, as well. I've looked it up, but nothing seems to fit. I'd appreciate your opinion. It's on a few leaves, which is why I'd like to know. Thanks, I appreciate your help!! 💚
Week 7
Leaves. Color - Mottling
8mo ago
6
4
Solved
Lushbloomz
Mottling Leaves. What's the problem?
Leaves are mottling, but otherwise healthy. Has anyone seen this before?
Week 3
Leaves. Color - Mottling
2y ago
4
2
Solved
CTCan
Whites dots on my leaves but can’t see pests? And ideas?
Week 8
Leaves. Color - Mottling
7y ago
2
1
Solved
Cheeba_Inu
There is a little bit of minor yellowing/browning in spots, on a few fan and sugar leafs. The plants otherwise seem healthy. Is this a normal part of this stage of flowering, or should I be concerned about nutrient issues? Thanks!
Week 7
Leaves. Color - Mottling
6y ago
6
3
Solved
Fermentedhops
Is this a calcium issue?
I noticed some discoloration on several leaves but not widespread. I think it is calcium deficiency but to make sure. Whatever ails her, a more informed opinion would ease my mind. Also, if it is a calcium issue, would raising from 3 to 5ml/gal of calmagic resolve it? (DWC)
Week 4
Leaves. Color - Mottling
5y ago
1
2
Solved
Grass_castle2020
Weird leafs
So this girl had a hard time when we moved her from a solo cup she flipped and we are worried maybe it’s from that but also wondering if it’s genetics...
Week 4
Leaves. Color - Mottling
5y ago
2
2
Solved
MansionMarijuana
One of the leaves has brown spots. Any ideas? Bugs or calcium deficiency maybe? Thanks in advance! Let's get these babies healthy!
Week 2
Leaves. Color - Mottling
7y ago
3
3
Solved
Cannadisco
It seems that I have some weird spots on my leaves.. haven’t encountered this in the past. Any idea what this could be and the solution to it?
Week 6
Leaves. Color - Mottling
6y ago
5
5
Solved
Toastdtoast
Still K deficiency?
I fed some flower fuel to plant 1, half strength, and the discoloration got worse! Some leaves almost look like cal deficiency so I also sprayed foliar with calmag, just now when I got home. Is this still looking like a K deficiency? If so, should I feed it again or wait?
Week 9
Leaves. Color - Mottling
4y ago
4
3
Solved
yinandyang
Dying lower leaves
Hi. Am thinking this is just the bottom leaves starting to die off. But am slightly worried it could be signs of something else
Week 7
Leaves. Color - Mottling
5y ago
3
3
Solved
n33bgr0w
Deficiency or over overfertilization? HELP!
My 2 Afghan Pearls are seam to be suffering from either deficiency or over overfertilization; I can clearly see brighter spots on their leafs that I don't have on any of the amnesias. They all have identical conditions – same soil, same, nutes, same tent, same all! Any clues?
Week 5
Leaves. Color - Pale
Leaves. Color - Mottling
5y ago
3
Solved
ValleoGrow
Hey i noticed some wierd brown looking spots on some of my flowers, what could this be? See photo Day 68 week 9
Week 9
Leaves. Color - Mottling
6y ago
5
3
Solved
Bingeling
Brown patches on Leaves
Brown patches starting to appear again on fan leaves. Im using ph'ed water and have begun giving her nutes since last i saw the problem about a week ago. The problem seemed to go away, but has now returned og the newer leaves. Any ideas? Lower leaf pic is the old damage.
Week 3
Leaves. Color - Dark-brown
Leaves. Color - Mottling
3y ago
2
5
Solved
RoomForBloom
Weird Spots on almost every leaf overnight? (Leaf Burn???) My plant developed these spots on the leaves basically overnight...
I was looking after them just yesterday evening and the plant was fine, however I did a mistake. The left plant got completely wet (i had to move it through the rain) and i did not dry it before the light went back on. Right plant is completely fine. No pests (thrips spimis etc.)
Leaves. Color - Mottling
Leaves. Other
4mo ago
1
3