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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
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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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Selected By The Grower
Horvi
answered grow question 4y ago
Thank you guys. You Are awesome :)
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CRiSPrGrow
answered grow question 4y ago
magnesium deficiency and Nitrogen excess ;-)
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Similar Grow Questions
Solved
BLAZED
Leaf problems
My leaves are getting yellow from the bottom, and some have burnt tips. It started when she is in flower. I often feed Powder Feeding from Green House. PK+ (NPK: 0-30-27) and Hybrids (NPK: 15-7-22) the PH is 6.5 They say this strain wont need much nutrients but can handle more
Week 14
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
3y ago
6
7
Solved
Max_Dune
Week 8 - Godzilla Cookies Auto - Feels like they are substantially behind. Thoughts on pest management or feeding schedule tweaks?
Day 54 - Godzilla Cookies Auto. Dealing with whiteflies, soil gnats & a caterpillar (now removed). Currently using neem oil spray & adjusted watering. Plants are full sun/30% shade daily. Avr Temp 20°, Avr Hum 56% How do these look? Are we good, or 'newbie' grow OCD?
Leaves. Edges burnt
Leaves. Tips - Burnt
Plant. Spaces between nodes
2y ago
6
5
Solved
Jayna
Brown tips
I'm really bad at distinguishing between the different types of damage, what would you say about those brown tips?
Leaves. Edges burnt
Leaves. Tips - Burnt
2y ago
1
1
Solved
Vril_Ya
Leaf burnt edges
Hi, I'm a first-time grower. Is this a sign of nitrogen deficiency in my Mimosa seedling?Thanks
Leaves. Edges burnt
Leaves. Tips - Burnt
3y ago
3
2
Solved
Ex0du5
Flushing in coco
How do I flush a 3 week old plants grown in coco/perlite mix. It seems like I got nutrient lockout Does the water need to be PH balanced or regular tap water( tap water sits at 7.5) and I grow them in 12L pots I hope flushing won't hurt there little roots
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
1
2
Solved
growingpepini
LEAVES PROBLEM
Some leaves edges are burnt, we are not sure if keeping it away from the sunlight or what. She has been flushed today with water ph 5.5 and a bit of top max by bio bizz.
Week 12
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Pale
6y ago
1
2
Solved
Grrrower
burns on tips and edges
the large leaves seem to be fine, but the small ones between the internodes are developing several burns Soon I will proceed with the washing, but what could it have been?
Week 4
Leaves. Edges burnt
Leaves. Tips - Burnt
6y ago
1
1
Solved
GrowzForever
Yellow spots and singed edges
I’m using a 600w digital ballast and I’ve only had it on 250w but I upped it to 400w then 600w for about 18 hours but I’ve put it back to 250w after noticing these yellow spots and burnt edges :( I think it could be heat stress but from what I’ve been reading and seeing it doesn’
Week 6
Leaves. Edges burnt
Leaves. Tips - Burnt
6y ago
5
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
Greeny1612
Suddenly, massive problems. Tried a lot already, nothing helped yet. Any ideas what I'm missing?
Hey guys, I've been growing for a few years now and something like this has never happened to me. Long story short, as soon as I move my plants from the veggie box into the flower box, they slowly start showing these symptoms (see pictures). The box worked fine for several grows
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
7
3
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
kaiabel
Tacoing leaves but temps around 24 highest and light is fine to 60cm from top and on 25%
Looks like its not heat or light stress, what could be wrong with her? She had one time in veg more than 36 hours light and now she cant get back to beeing normal. she is living in 11l shoes, had 2ml per L even if she is a 11w old clone. Maybe i need more food?
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl up
4y ago
2
1
Solved
LegalGrowMyOwn
far too Lightburn/stressed
Hey gromies🤓 If got a big problem with my Mars hydro tws2000, its too powerfull for my ladys
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
3
6
Solved
mangojuus
Yellowing leaves
What kind of deficiency is this? I can get a sack of coffeeground and add it if nitrogen is the cause
Week 6
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
6y ago
6
Solved
MakeMeSleepy420
Light burn on seedlings?
I have 9 seedlings that all seem to have light burn. The seeds are from good genetics, where my last crop went hermie from a light leak. AC Infinity 2x4 on 40% power at 18”. Thoughts?
Leaves. Edges burnt
Leaves. Tips - Burnt
2y ago
4
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
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
1y ago
4
4
Solved
wazzaaaap
What deficiency
What that could be?
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
1
Solved
stoner_doom
Please help to identify deficiency / excess???
7 weeks, autoflower, soil + perlite, giving water with RQS Easy Bloom (half a tablet per 3 liters), pH of the watering mixture is 6.5. The bottom leaves on one of the plants are turning yellow (starting from the tips) and slowly dying , while the top leaves tips look very burnt.
Week 7
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
9
3
Solved
DuckeedWizard
Is this light stress and/or nutri deficiency?
Showed up just a couple days ago and progressed quite fast for my liking lol I just wanna be sure, as harvest is approaching and i can tank some light damage. Also, i turned down the lights just in case too
Week 14
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Red or pink
2y ago
8
6