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Back to Grow Questions
What is this?
Tonno
started grow question 5y ago
Can someone explain to me what is this?
Solved
Leaves. Color - Dark-brown
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Roberts
answered grow question 5y ago
Calcium deficiency
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Complain
Selected By The Grower
Similar Grow Questions
Solved
TheProfessorGrows
K deficiency? Or something else?
Not sure how to go about this deficiency. PH is solid at 6.5 so it’s not a ph issue. It seemed I had corrected the deficiency when it first appeared a few weeks ago, but now the brown spots seem to be spreading again. I think it might be K but not sure? Any ideas?
Week 9
Leaves. Color - Dark-brown
3y ago
1
3
Solved
TopNotchBud
Diagnose my plant :)
Is this a Calcium deficiency? I neglected her for a few days but time to solve it now
Leaves. Color - Dark-brown
5y ago
2
Solved
illegal_brain
Potential bud rot?
My critical cure has some of the smaller leaves near and in the buds which are starting to turn rusty brown. Is this a starting sign of bud rot? Should I cut them early? I do not see anything abnormal under the microscope or when separating the large buds by hand. Thanks!
Week 15
Buds. Other
Leaves. Color - Dark-brown
Other. Mold
4y ago
8
4
Solved
hweixd
Day 4, after emerging. Is this coloration on the cotyledons okay?
Humidity is 55 - 70, temp is around 20-24c, 50w full spec led It's my first time, and i think i have been watering it too much I also fed it 2-0-0 npk water with 4ml per liter and I since learned it's not okay. Will it recover? Is this too little grow for day 4?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
2y ago
4
1
Solved
KabakciLar
yellow leaves and brown leaves
Leaves in 1 pot are turning yellow and dark brown burns are occurring help please https://ibb.co/yhyTtMh https://ibb.co/2YkHksM https://ibb.co/Kwb5fsd https://ibb.co/nw4ntyP https://ibb.co/44JtDz5
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
3
3
Solved
DTaro
pH
DWC grow. 1. pH dropping 6 to 5.3 in a day, changed new nutes still happening 700ppm/ec 1.4 staying same no change. 2. Roots doesn't stink or smell, my roots has always look like that using biodiesel and seaweed 3. Distinct brown spot on leaves Please advise.
Leaves. Color - Dark-brown
Roots. Color - Brown
Feeding. Other
6y ago
5
3
Solved
ganjaaagirrrlll420
leaves
Does any body know what this is, I'm not sure if it's just neuts that I've splashed on the leaves that have burnt or something else 😳 Pls help 🙏
Leaves. Color - Dark-brown
3y ago
1
1
Solved
yatzi
Leaf spots!
Leaf septoria or nute deficiency? Don't have ability to monitor pH or ppm. Do I cut the affected leaves off or any other home brew solution? 3 different plants in the photos.
Leaves. Color - Dark-brown
5y ago
1
5
Solved
Ravenouside
El problema de manchas café sigue igual le baje los fertilizantes a 1/2 dosis según semana después de 1 semana de solo agua embotellada. El PH de la solución generalmente es de 6,3-6,5, aparentemente la cola central está más gorda pero me es difícil notar la diferencia,
Week 7
Leaves. Color - Dark-brown
7y ago
1
1
Solved
RandoMan
Brown spots
What is going on here? Plant has been doing so well until this.
Leaves. Color - Dark-brown
2y ago
1
1
Solved
Mordeloth
Brown rusty spots
Hi guys ! I got somes wierds spots like rust brown ish on the 2nd week of veg in autoflower. I didnt feed them a lot before ( like 1/8 of the reciepe ). Its only on the 2 bottom leaves. 26 degre 60-65% humidity purple lemonade auto fastbud
Leaves. Color - Dark-brown
5y ago
1
4
Solved
Cana_Gen
Am I dealing with a Calcium Deficiency
Really wondering what’s going on with this burn. Only really affecting the top new growth and from what I’ve read it’s a calcium deficiency. Please help
Week 1
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Greeneyedgrower
Color change.
I always get nervous when the leaves start to change. So my question is, this is natural right? I would guess they are a couple weeks away from finishing?
Week 8
Leaves. Color - Dark-brown
6y ago
3
4
Solved
Jworjik
Brown spots
What are these brown spots and how can I treat them. I saw them only on 3 leaves.
Week 8
Leaves. Color - Dark-brown
6y ago
3
4
Solved
Bikoo
Damage on the leafs
Alright another week another question for me to learn from. As you can see in week 2, there is some small damage on the first set of leafs. Please check the two pics of week two. What do you guys and gals think where the damage came from and what to do with it? Cheers!
Week 2
Leaves. Color - Dark-brown
6y ago
1
1
Solved
ZipCap
Which deseas did my plant have?
One of the plants shows an illness. What can it be? I had previously sprayed the plants with water.
Leaves. Color - Dark-brown
6y ago
1
Solved
Bushbanker4
Leaves changing colour
I'm seeing a shade of brown kick in within the top 3rd of the leaves, should I be worried this far into flowering? Any help is appreciated.
Week 7
Leaves. Color - Dark-brown
6y ago
2
2
Solved
Skyisthelimit
Brown spots leaves
what do you think , 4 weeks old , is in Plagron bath mix .. I gave her 1x 2ml alga grow and 0.1ml rootbastic . she is in a 11l pot .. am worried about the brown spots ??
Leaves. Color - Dark-brown
4y ago
1
1
Solved
hellomynameis
More leaves turn yellow from the bottom upwards with brown spots in the middle of the leaf. ph 6.2 goes in but runout is 7.4 what is wrong? lockout or overfertilised? I used BioBizz schedule. Will it flower someday or should I trash it? 😭
Week 12
Leaves. Color - Dark-brown
7y ago
16
6
Solved
Havingago
Suffering seedlings
Seed 1 is suffering and both plants probably stunted. Should I let these dry up then give a full dose (canna schedule) of coco ab and some cal mag?? Thanks in advance 👍
Week 4
Leaves. Color - Dark-brown
6y ago
5
4