I added a couple pics of what looks like rust spot...
diamondtrichomesstarted grow question 8y ago
I added a couple pics of what looks like rust spots on the leaves of only the tall plant in 7 gallon. I’ve given these two plants the exact same feeding so not sure what is causing it.
likes
Athosanswered grow question 8y ago
Looks like calcium deficiency, specially since it it's happened on the top leaves.
TropicThunderanswered grow question 8y ago
Looks like iron or calcium to me.. Happy growing friend
1 like
Complain
Similar Grow Questions
Solved
PinkParrot
Brown leaves[ Lemon Orange 70% sativa ] Lot of brown leaves, starting from the tip
[ Persian pie 60% Indica ] less affected by the problem (same watering)
{ We tried }
PH 5,7 | & high PH 6,2
EC 0.9 | EC 1.2
Upper light
Cooler temp
Higher Fans speed
Note : Grow & Bloom bottles crystalized..
4y ago
6
6
Solved
Weediz
Brown spots, PH in run-off is in the high end (6.5~)I see some brown spots on my leaves. I thought it was Calcium Deficiency caused by too low PH so I gave them PH 6.5~ with 30% run-off, and run-off shows at least the same PH so I think it is not too low PH, could it be caused by something else? Maybe too high PH or light-stress?
4y ago
1
7
Solved
Dylannthoo
Is 8 oz of water about right for 3 weeks old plants? Also thinking about LST, is it a good time to start that now? Also is buying nutrients worth it when it comes to harvest? Or is it more dependents on the power of the light ? Thank you for any advice 💯🙏🏼Week 3
Leaves. Color - Dark-brown
7y ago
3
3
Solved
RecordSet
Brown Spots DiagnosisI need some help diagnosing these brown spots please! I am considering light burn, calcium deficiency or maybe PH imbalance.
PH is usually around 6.8, humidity near 60%, temps averaging 27°C/81 F, light distance at 25 cm, nutes and water schedule is disclaimed on my current grow
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
2
3
Solved
TheIceCreamParlour
Check out my week 7 update for more info. Only one plant in the tent affected so it's really bugging me?!? Thought it was overwatering. Left them 2 days between feeds and they are bone dry and pots are light. Any suggestions or could it just be a trait of the Pheno?Week 7
Leaves. Color - Dark-brown
8y ago
1
4
Solved
JSanchezz
could this be due to the PH being too low?I watered 3 days ago with PH 6.3 Ruoff was 6.0
today watered with PH 6.6 runoff was 6.1
Can the brown spots come from the wrong PH ?
fertilizer is full BIO BIZZ CHEEMA, worm humus and mycoriza
what would you recommend to do ?
Leaves. Color - Dark-brown
2y ago
6
8
Solved
SmallTownGrower
Might this be a Calcium deficiency I'm having?Week 9
Leaves. Color - Dark-brown
7y ago
5
4
Solved
HappyHarvest
Upward Curling Brown Leaves/Nutrient Lock Out?I've got a serious issue. Started 3-4 days ago, right after adding nutrients and increasing light.
Leaves are curling upward and browning. Not crumbling yet but look like they will be soon.
Both new and old growth is being effected.
Maybe the Mineralized Phosphate was too much.
6y ago
1
3
Solved
ClaireCrystal
Skittles plant with brown spotsOne of my skittles plants is starting to get these brown spots with a yellow outline. Any advise is appreciated!
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
1
4
Solved
fiadhok
Hojas manchas marronlas hojas de mis plantan han comenzado a tener manchas, me han dicho que les rocíe con jabón potásico y aceite de neem en las noches, pero cada vez avanza mas. será falta de nutrientes? algún hongo ? o quemaduras en las hojas por potasio ?
Leaves. Color - Dark-brown
Leaves. Color - Mottling
6y ago
2
1
Solved
Hermes88
Help me please. Thank you so much.Hi guys I need some help with my little plants, I have three plants one of them it's all right but the other one has this problem, I don't know if the problem is nutritional excess or nutritional deficiency, or maybe the irrigation.Instead for the topleaves look at the last phot
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3y ago
2
3
Solved
Germaican
What deficiency is this ?What is happening to my plant right now ?
I believe it is calcium deficiency also could be Manganese from the pictures. I did not add CalMag during the first weeks.
Usually Calcium deficiency shows after 4 weeks and during flower but not likely in soil.
Started around 6th week
2y ago
5
3
Solved
Peweez
Could someone help me to identify the issue my plant has?This girl isn't looking healthy anymore and I need to figure out why. What I did: I topped her pretty early but she recovered well (you can see it in my grow diary). A week later I transplanted her from 0.5L pot to her final autopot 14L. After that she had a hard time recovering.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
2
3
Solved
Jules216
Spots on leavesAny ideas why these Brown spots appeared so quickly?
Leaves. Color - Dark-brown
2y ago
3
Solved
GoGscrash
What is wrong:/please advise me what shortage or surplus could be
Leaves. Color - Dark-brown
5y ago
1
3
Solved
Bruce_Leroy1
Has anyone had one single branch effected by some sort of deficiency? I have it pictured in the photos for week 10. Any idea what would cause this?Week 10
Leaves. Color - Dark-brown
7y ago
3
3
Solved
FatalFarmer
Brown spots on one seedlingI noticed some small brown spots forming on one of my plants leaves, not sure what it is, maybe early sign of cal deficiency? The other plant looks nearly identical with out these spots, any advice helps although it could be too soon to tell what it is...
Week 2
Leaves. Color - Dark-brown
6y ago
3
3