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Back to Grow Questions
forgettenseedling
started grow question 5y ago
Leaves getting brown, can someone help me out? What does the plant need?
Solved
Leaves. Color · Dark-brown
Feeding. Deficiencies
1 like
Roberts
answered grow question 5y ago
Looks like too much nitrogen and a magnesium and calcium issue started.
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
growbert76
Is this really a potassium defiency? Any suggestions how to deal with it?
Hey Guys, need your help please. It's FD 28 and the leaves of my three White Widows show some signs of a nutrient deficiency (at least my assumption).I'm growing in living soil w/o any additional fertilizer and watering with a 7:3 mix of osmose/tap water and 0,5 ml/l CalMag.
Week 8
Leaves. Color · Dark-brown
Leaves. Color · Mottling
Feeding. Deficiencies
3y ago
4
4
Solved
guerilla
Calmag deficiency?
Hi all. Almost certain what this is. But just need reassurance please 🙂 I just need to confirm this can be fixed with calmag?
… Show more
Leaves. Edges burnt
Leaves. Color · Dark-brown
Feeding. Deficiencies
5y ago
4
5
Solved
FireRGB
Blätter verfärben sich komisch oder trocknen aus?
On 1 out of 4 plants, the leaves are discoloring in some spots. I'm using Biobizz products and giving the rest of the plants the same! BioGrow - Bioheaven - Biobloom - TopMax - and PH down are used - watered with 6.2 What I understand is that it's an "immobile" problem.
Leaves. Color · Dark-brown
Feeding. Deficiencies
4y ago
2
Solved
lonergrower
Brown rust spots on oldest leaves
Brown rust spots on oldest biggest leaves with curling inward - the rest of the flower is fine, just some occasional small yellow spots. No sign of pests. Maintaining pH ~6.5 but have soft water. Suspect cal/mag deficiency or nitrogen toxicity. Thoughts?
Week 4
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
2y ago
7
4
Solved
densesensi
Did I nute burn my leaves?
I fed GH flora trio yesterday - introduced the bloom None of my other 2 plants have this. The other auto is the same age and fed the same dosage. How can I fix this? Or will it recover?
Week 5
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
2
Solved
Cannabeans
Brown dying leaves
What is going on with my leaves? Even the sugar leaves are starting to die. Sprayed with optic foliar switch to prevent male flowers popping up a few weeks ago so could be that.
Week 2
Leaves. Tips · Die
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
4
3
Solved
TschupZ
Possible lockout, what could've caused it, all 3 get the same water & feeding
Hey, i'm new as grower and really glad about any tipps I got some rusty spots + pale looking, tested the runoff and need help reconstructing on what went wrong IN: 2l Osmosis + 0,6ml calmag + ph down 7 - 6,5 -Ph: 6,5
… Show more
Leaves. Color · Dark-brown
Setup. Strain · Autoflowering
Feeding. Deficiencies
2y ago
5
4
Solved
Mosherd7
Unknown rust on 7th flowering week
This started as what I thought was a cal/mag deficiency, bought some, gave it for a week at a good dose and 6.3ph, and this intensified and switched from just lower leaves to the upper and a few sugar leaves on one plant. Any ideas? May calmag takes awhile? Or wrong diagnosis?
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
3
Solved
Goenndalf
Rusty Leaves
3 upper fan leaves have "rusty" brown spots on the upper side. Hard to spot, hard to capture on camera. I also have slight "clawing" on many of the upper leaves. Mg/Ca lockout because of nitrogen toxicity possible? Doesn´t seem to be fungi, as there are no spores to rub off.
Week 8
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
2
2
Solved
Losqui
Spots on leaves
Hi mates, what do you think about those points.we are at 4 week flowering, soil and canna Flores. Are they insects bite or some nutrients issue? Thanks in advance
Leaves. Color · Dark-brown
Leaves. Color · Mottling
Feeding. Deficiencies
6y ago
1
1
Solved
Drizzy315
6 week flowering leaves turning black/ purplish color?
Hey guys I’m new to the site and fairly new at growing got a question. My plant seems pretty healthy for most part but recently what appears to be black color taking over the leaves ? Is it phosphorus? I been giving them plenty bloom nutes. It week 6 about. Any idea what it can b
Leaves. Color · Dark-purple
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
2
Solved
kizdog
Tiny Brown/Bronze spots
My Dr. Lemon plant has a few orange/bronze spots on some of the middle/upper leaves, Looks like a calcium deficiency, but I'm not sure. Anybody have an idea of what this could be? Feel free to check out my diary on her for more context!
Leaves. Color · Dark-brown
Other. General questions
Feeding. Deficiencies
5y ago
1
1
Solved
FiFrElOt
Demande de diagnostic
Hello, I'm currently in week 7, my problem has been going on since week 5 and I can't identify it... Has anyone ever had a problem like this?
Leaves. Color · Dark-brown
Leaves. Color · Black or grey
Feeding. Deficiencies
5y ago
2
2
Solved
elevensixty6
Deficiency?? Excess? Neither?
Grown this strain before and had the same issue.. not sure if its a CalMag deficiency entirely. pH has remained at 6.0-6.5 or so in soil and didnt show signs until recently, seemed to have worsened after just two days of only CalMag and Ro water so I bumped up the bloom nutes.
Week 5
Leaves. Color · Dark-brown
Feeding. Deficiencies
5y ago
3
3
Solved
ssfm_ssfm
Are those nutrient defficiencies? Which ones?
A plant had interveinal chlorosis on new leaves and then proceeded to show brown patches between veins on middle leaves. Another has coppery brown spots on leaf edges on the middle of the plant. Both were rootbound in living soil (peat/perlite/hummus + ammendments).
Leaves. Color · Dark-brown
Feeding. Deficiencies
Techniques. Topping
2y ago
1
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
Week 7
Leaves. Color · Dark-brown
Setup. Strain · Autoflowering
Feeding. Deficiencies
2y ago
5
3
Solved
jbirdstheword
Burn, deficiency or other?
I’m completely stumped as to why my one plant is showing signs of deficiency or burn. Used the exact amount of fertilizer per plant. One plant is fine and the other looks terrible. I used a half dose of cal mag and it seems to have stopped but is not drinking or looking better.
Week 7
Leaves. Curl down
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
3
2
Solved
Asuratyr
Nutrient deficiency? If yes, what's the best course of action to salvage the situation?
First time grower of 3 autos, at week 8, lower leaves started turning yellow, top leaves started to get smaller/develop brown spots 2 weeks ago. Is this a nutrient deficiency problem? Soil should have been fertilized for 3 months, but I'm thinking they burned through it.
Leaves. Color · Pale
Leaves. Color · Dark-brown
Feeding. Deficiencies
5y ago
2
2
Solved
GrowerNL
Rust on leaves PLEASE HELP!!
Rust on leaves i water with pH 5,8 EC 2,0 i grow coco EC runoff 1,8-1,9 pH runoff 7,0-7,5 but pH runoff coco is not something to rely on i don’t use calmag want to use it since this problem i have given him some pK today
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
Solved
N1xon
Calcium deficiency, cal-mag now in hand, water now, or wait for normal scheduled water? Last water yesterday.
Plants are suffering from an early stage of calcium deficiency, received a bottle of cal-mag today. Watered last night cause I didn't want to wait any longer. Should I wait for my next water (2 more days) or give a single dose of Cal-mag now, to get some calcium to the plant?
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
4
3