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
I am seeing brown spots on the smaller leaves of u...
Buddabud
started grow question 6y ago
I am seeing brown spots on the smaller leaves of upper colas, plant looks healthy besides them, does anybody know what they are? Lsf maybe?
Solved
Week 10
Leaves. Color - Dark-brown
likes
Grey_Wolf
answered grow question 6y ago
@Buddabud
I concur definately heat and light caused damage to the plant. raise that Light or Lights To alleviate the problem Good luck Mate
likes
Complain
Selected By The Grower
Fruitgrower
answered grow question 6y ago
That's light stress for sure you can tell by the top of the buds too. Just raise the light. 👍🌱
2 likes
Complain
Similar Grow Questions
Solved
Nightabsm
Leaves browning in multiple spots Lower leaves yellowing but have green veins.
One plants leaves are browning in multiple locations. I attempted to diagnose the problem with runoff tests. pH was 6.5 and TDS was around 900ppm, which was expected since they received nutes that day. Despite not spreading to other nearby plants, could it be leaf septoria?
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
4
4
Solved
GrowmieDeLaStreet
Flushing don't seem to solve my lockout
It's been 6 days since I noticed the problem. first thought it was a deficiency but really is a lockout. I flushed 2 days ago but she keeps getting worse. Am I being impatient? I flushed with tap water pH 6-7 until the runoff was in the same range and haven't fed her for 4 day.
Week 9
Leaves. Color - Dark-brown
6y ago
1
7
Solved
koronkonko
What is this symptom?
Have a symptom of something that I could not understand. Started with yellow color from the edge of leaves, suddenly become a brown/yellow color and top of the leaves dried too fast like burned. any ideas? under plant: pH 6,6; EC 1,7;
Week 7
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
7
Solved
livetogrowgrowtolive
What kind of deficiency is that? pls help
Week 5
Leaves. Color - Dark-brown
5y ago
2
2
Solved
OrganicRepresent
Yellowing leaves
Not sure if is issue yellowing leaves on my pot 3. Same strain pot 1 got slowly bottom leaves yellowing, pot 2 have nothing yellowing yet just pot 3 accelerate with it. Pot 3 veg with indica flower as sativa crazy genetics. What can be issue? Its end of week6 flower.
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
1
Solved
G_news
Little brown discoloration on older leaves
Hey all so how do these 3 plants look? Only one has some discoloration since then I changed the water Ph6 ish Ec 1-1.3 Ppl500-700 These are rough averages
Week 4
Leaves. Color - Dark-brown
5y ago
2
2
Solved
blasterw32
Brown spots new leaves - flowering
Brown spots on the canopy and leaves are less greener. I suspect it is Calcium deficiency caused by a acid Ph (my Ph meter was not calibrated). I have flushed it and fed it normally 5 days after the first signals. Is it really Calcium def or another thing I'm missing?
Week 12
Leaves. Color - Dark-brown
6y ago
1
2
Solved
Dragosani666
Top leaves turn dark and curl - What can I do?
I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago. Mid last week I started noticing some burn a the tips, so i dialed nutrients back again. By this weekend the tips of the leaves curled further and turned dark. The rest still looks a bit pale, but buds look good.
Week 7
Leaves. Curl up
Leaves. Color - Pale
Leaves. Color - Dark-brown
2y ago
4
3
Solved
toxicswine462
Calcium and Nitrogen deficiency?
Hey guys, I noticed that on a few leaves have start appearing some rust spot. My guess is a calcium deficiency. What do you think? Also, there's a cola(the one marked in the pic) which has a slightly more light green leaves, nitrogen deficiency?
Leaves. Tips - Burnt
Leaves. Color - Pale
Leaves. Color - Dark-brown
4y ago
3
4
Solved
Noela
Deficiency/Light Stress Issues
What else can I do? Brown curled tips and spots on older fan leaves climbing up towards main cola. Flushed with pH’d RO yesterday, but was only able to get pH to 6.7, also added small dose CalMag at end of flush. Light wattage has also been reduced by half for the last week.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
3
3
Solved
BucerosRhinoceros
Brown spot on leave. 6 weeks into flowering. -Temp 27'C day 25'C night- HD 65% day 75% night . Soil PH 6.5-7.00. Water always at 6.5-6.8ph.
I just flush it 4 days ago because I think it got calmag lockout since I always give them around 5ml of calmag every watering. I only water when 2inch top soil dry with 1.5L of ph balance water. Not a fungus or anything that grow because It cannot be rub or remove from outside.
Leaves. Color - Dark-brown
5y ago
5
3
Solved
Bryankush
Foglie
Ho un problema alle foglie sapete cosa sia? Ho provato ad alzare i led a 50cm per vedere se sia quello il problema. Voi cosa dite?
Leaves. Edges burnt
Leaves. Color - Dark-brown
5y ago
2
3
Solved
Aragon
Brown tips, Crusty leaf.
These brown tips appeared on the leaf and it cracked, anyone know what it is?
Leaves. Color - Dark-brown
6y ago
1
Solved
Complicate
browning sugar leaves, 9th week of flower
I have some browning sugar leaves, I missed some watering last weekend and think this might be the issue. This should be my last week of flower is this something to worry about?
Week 12
Buds. Other
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Mancha
Do I have to worry?
Only on one leaf of one plant. Is this some fungus or virus? It looks a bit like coffee rust, but I couldn't find anything else like it. How should I proceed? Thanks in advance!
Week 9
Leaves. Color - Dark-brown
4y ago
5
4
Solved
Therapy420
Browning lower leaves
The lower leaves on the Purple Punch in front are turning brown, what could this be? I am using Easy Boost pellets by RQS as nutes, water is ph'd to 6.5 in BioBizz Light Mix.
Week 7
Leaves. Color - Dark-brown
6y ago
2
2
Solved
Therapy420
Leaf discoloration
What is happening to my leafs? Are they fading or is it nute problem?
Week 10
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Lapolda
Brown spots on the leaves
Hello, everyone. After replanting, this appeared on some of my flowers. I think it's probably stress after replanting, but I'd rather ask you more experienced ones. Thank you in advance for the advice 🙂
Leaves. Color - Dark-brown
4y ago
1
5
Solved
XiceX
what are those spots on the leaves, they appeared last week. I try to rinse the root with 2 L of pH 6.7 of water without nutrients, but it seems to continue
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
7y ago
2
1
Solved
Someboty
Brown Leafs?
What is going on here? i saw that my plant got some issues with its leaves. I got my self Bio Bloom from bio bizz my friend told me it could help but it is already day 3 and it did not get better. what should i do?
Leaves. Color - Dark-brown
Techniques. Defoliation
2y ago
1
4