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Back to Grow Questions
Lightburn?
Horvi
started grow question 4y ago
Can you please help me identify what Is wrong? I grow under led lights.
Solved
Leaves. Edges burnt
Leaves. Tips · Burnt
likes
HerbalEdu
answered grow question 4y ago
look like bigger plant is suffering from magnesium deficiency, and smaller plant is probably rootbound and suffering from nitrogen deficiency. https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg
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Complain
Selected By The Grower
Horvi
answered grow question 4y ago
Thank you guys. You Are awesome :)
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Complain
CRiSPrGrow
answered grow question 4y ago
magnesium deficiency and Nitrogen excess ;-)
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Similar Grow Questions
Solved
SAC87
Leaf issue in Wk 6
Hi I am having a leaf issue late in week 6. It’s been coming on a while. I’m wondering if the ph is out or too high ppm. 7 gal pots in a Scrog, it’s hard to test runoff. I’m starting to flush now so does it matter as much as long as ph is good? More wondering for next run. Thanks
Week 14
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
1
1
Solved
hightech316
Nutrient burn , this bad?
Started off in hot soil. My first organic run. 5th week bloom. 75degrees 35rh. 300w led 21" from canopy.Soil pH 6-7 Using Gaia Greens top dressing for feed . All Purpose and Bloom. Added Gaia all purpose to the soil, then extra non needed amendments.Not needed .Top fed monthy
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Dropping off
2y ago
4
3
Solved
SuperGreenGoblin
Curl and clawing,N-Toxicity?Flushing?
Hello Growers! Last week I gave around 1ml/L BioGrow in 600ml water. Now all leaves seem to me dark green. Some are disformed/wavey and show burned leave edges and slighty burned Tipps. Two of them seem to be handling the high nitrogen. But the third is curling/clawing. Wdyt?
Week 4
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Curl down
2y ago
11
4
Solved
Fozziebear22
First grow ever. Will I be able to harvest this plant
Pics of light, nutrient… a few weeks ago one out of the 3 plants leaves started to brown. Not sure if it was the nutrient or light. I’ve stopped giving them the potassium nutrient and moved the lights around. But Will I be able to harvest this plant ? Week 6 of flowering
Leaves. Edges burnt
Leaves. Tips · Burnt
4y ago
1
1
Solved
Spike-GreenGrower
A deficiency, a toxicity and a toxic-deficiency???
Here's what I make of it (and PLEASE correct me where I am wrong!) : The tips yellowing indicates, a nitrogen burn. The burnt brown tip indicates, nitrogen burned to long 😂 The black spots indicate, a P or K issue (as the leaves are otherwise healthy green in color)
Week 17
Leaves. Edges burnt
Leaves. Tips · Burnt
Setup. Strains · Photoperiod
2y ago
4
4
Solved
versace_grow
Is this heat light burn? HPS 600w at 20cm
Is this light heat burn?? These are all buds at the top of the canopy and they are the ones nearer to the lights. I have 2x600w HPS, one with a cooltube and the other just with the wing. The possibly burnt buds are the ones under the wing (just 20 cm).
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Curl down
6y ago
3
Solved
Canna_ballistic
Burnt tips and edges
Not sure what's happening, first time seeing this.. The ec went up, have corrected that, ec is now 1.2, ph 5.9-6??, 5 weeks into flower only just started happening
Week 9
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
2
Solved
RudieCantFail
Cal/mag problem or heat issue?
A few leaves have some problem spots popping up here in week 6 (see pics). No nutes, PH’d water. FFOF/HF/Perlite mix for medium under 20 hours of light. I’m guessing either got too hot from being in 90F heat for an hour or needs cal/mag? Any advice from any veterans out there?
Week 6
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
1
1
Solved
NorthernStar20
Problems with leaves, Nitrogen? Overwatering?
Not sure whats happened here, is it Nitrogen toxicity or over watering?
Week 7
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
2
Solved
TheDoctor
Lockout/Deficiency?
My peyote critical and the others (although less than the peyote critical) shows some deficiency or lockout... please help me! I stopped fertilising and put some pulverized egg shell in the soil...
Week 7
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
6y ago
6
5
Solved
bbkaldo
'Claws' on tips just after flowering started. Previous answers help - it is a bit worse. I keep a perfect VPD. What should I do? Flower wouldnt f
I'm confused. For the first 3w I used LED as instructed 30-40cm, I had ~43cm,100%dim, everything was fine. When the bloom started yellow claws appeared and still there, maybe a bit worse, with 53cm and 75%dim. Mostly on BPP, one more plant showed her claws today aswell. 😓
Leaves. Edges burnt
Leaves. Tips · Burnt
Setup. Lighting
3y ago
2
2
Solved
Bimbadabang
Help in identifying Burnt tips amnesia haze
Hello, If anyone can help me identify the cause of these burnt tips it would be a great help! For info: Amnesia haze week 9-10 Ph runoff is 6.4
… Show more
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
4
3
Solved
weeedistight
Nute Burn or Calcium deficiency?
Hey, I’ve just joined the website and already looking forward to making a dairy for my current auto grow. I have 1 auto, Barney's Tangerine Dream that Ive trained to fill my tent. I seem to be experiencing possible nute burn, would anyone agree? Or is it a calcium deficiency?
Leaves. Edges burnt
Leaves. Tips · Burnt
4y ago
1
1
Solved
dillande3
PHK leafs edges are yellow color like burning
Hello Guys, PGK some large leafs edges shows yellow/brown color looks like burns, its on 5 gallon bag , with nature's organic living soil with Roots organic potting soil (10lb potting soil and mixed with 1lb living soil concentrate) water only, only this plant show this symptom t
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
4y ago
4
5
Solved
FarmBoi
Brown tips and edges, but not on all plants.
2 out of 3 Kratky plants are showing some crispy brown at the tips and edges. Would I be seeing nute burn at 550-750 ppm? Why only 2 plants? Why only the Kratky but not the DWC? (Same strain.) (I am actually using GH FloraDuo A and B) Thank you!
Week 3
Leaves. Edges burnt
Leaves. Tips · Burnt
6y ago
1
1
Solved
Wackytabacky_420
Anyone know what's wrong with my girl?
Can anyone tell me if this is going to effect my flowers? Should I cut these leaves out? What can I do to correct it? I left a pretty good description in week 7 of the battle with this plant.
Week 7
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Yellow
5y ago
2
2
Solved
Dankbudz84
Is this Ph lockout
Coco drip setup with the full canna line except boost. Week 7 juicy fruits auto. Feeding at 1.5EC and ph 5.8 to 6.2. I drip for 26 seconds about every 2 hours pump stops as soon as there is run off. Run off was at 5.25 Ph and 1.5 EC. I flushed with ro water with nutes 1.0 5.8.
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Curl up
5y ago
2
Solved
korn420lie
Leaves burned after spraying a cocktail
To repel aphids I sprayed garlic infused in alcohol with water, already did this few times without side effects. But this time I added several drops of tea tree essential oil. Is it possible that the essential oil has burned the leaves so much or is this some nutrient deficiency?
Week 11
Leaves. Edges burnt
Leaves. Tips · Burnt
2y ago
3
3
Solved
Aleatoric
Possibly Potassium Deficient? Based on ALL the pics I could find, but not sure.
I noticed these brown splotches and leaf edges on one area bud and pistils of my Orange Sherbet last night. Based on what I can find online, this might be potassium deficiency? This is mostly on one spot near darkest edge when tent closed. Thanks!
Week 5
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
2y ago
3
3
Solved
Bak2Blk
I don't think this is nute burn...
So I thought I had a case of mild nute burn but I haven't given the plants any Bloom or Calmag since last Friday, only water so I'm wondering if this is a nute burn issue now. Could it be my PH? Last I tested my run off it was at about 6.65. What's causing this?
Week 13
Leaves. Edges burnt
Leaves. Tips · Burnt
Leaves. Curl up
4y ago
5
3