By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
Burnt leaf.
SagarSarkarstarted grow question 5 years ago
Is it potassium toxicity? Occure after i gave molasses to water.
like
CRiSPrGrowanswered grow question 5 years ago
looks like micronutrient lock out , probably Mg , nothing you can do except a flush, but hopefully you don t really need to. for molasses you dont need more than two spoons for the whole grow. just mix it in warm water then dilute it but you really dont need much at all. Hope this helps ! 🚀
Sloppyanswered grow question 5 years ago
What type of light? Could be a grow light too close.
1 like
Complain
Experimentgreenanswered grow question 5 years ago
Hello,
I love using molasses in my grows, especially towards the mid/end of flowering..but when i do, i noticed it has an incredible capacity for lowering the ph of my water...and probably my soil if i didnt adjust the ph after adding it.
Potassium deficiency and excess always look a bit the same to me...but i know for toxicity one cause can be a decrease in soil ph. So perhaps the molasses is to blame.
I'd say go in with a nice clean flush and then come in with a very mild nutrient solution at your desired ph and hope the problem stops, and gets better.
*the burnt tips seem like they're going in a bit further than average nutrient burn, so hopefully it is more of a ph trigger than anything else?
Good luck with the remedies. Ive heard using kelp extract and silica can be a good plant tonic for stressed or damaged plants.
Happy growing and don't panic...just problem solve. ✌️
1 like
Complain
Similar Grow Questions
Solved
MyGrow
should I be worried?I have a problem identifying the cause.I notice that the lower leaves become dry, crunchy lose their color. But only the very last leaves at the bottom. I do not notice any problem towards the apex.
Does anyone have a lead please? An excess of P ?or K?
Leaves. Edges burnt
Leaves. Tips - Burnt
4 years ago
2
2
Solved
TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn.
The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.
4 years ago
1
1
Solved
pinkdragon
Just to confirm, this looks like nute burn, doesn't it?Burnt edges, tips curled up, canoeing. I've been having trouble balancing airflow and heat in such a small tent, and as a result the tent is on average about 28 degrees celcius daytime and the plants still get a lot of wind. Looking for whatever advice you can give! :)
4 years ago
3
3
Solved
HYDROBEAT
Bruciatura da luce o fertilizzante ? (Dwc)HELP! Vorrei risolvere e trovare una spiegazione valida per queste foglie che stanno bruciando, principalmente sulla cola principale quindi quella più esposta alla luce". Ho anche aggiunto una dose di nutrienti essendo l'ultima settimana di bloom.Qualcuno ha qualche idea💡?Grazie
4 years ago
4
6
Solved
EmeraldLakeCannabis
Progressive yellowing on older fan leaves ~F14-F35Hi, past two weeks or so I've been noticing progressive chlorosis and eventually some necrosis starting from the edges of the leaves and working inwards.
Photos of this can be found in Week 18 Flower denoted by "For grow question #x 12/1"
Humidity low, could be related?
thx4 years ago
2
Solved
Danielkendle
Nitrogen burnHow can I counteract nitrogen burn?
Week 4
Leaves. Edges burnt
4 years ago
1
1
Solved
Bimbadabang
Help in identifying Burnt tips amnesia hazeHello,
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
I’ve had problems with calmag deficiency before so it could be that
Using biobizz light mix and biobizz nutes
Anything helps!
Leaves. Edges burnt
Leaves. Tips - Burnt
4 years ago
4
3
Solved
Zegr8
Leaves burnHi! Is this nutes burn? Damage is on the upper/middle part of the canopy on very few leaves, but many more have black tips.
I’m puzzled because during veg I was feeding the plant higher ppm than now and never had a problem!
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Black or grey
4 years ago
2
Solved
Slurpy_Terpy
Close to harvest leaves curling, crispy, yellow tipsThe leaves of some of the main buds are showing problems. The tips are curling/pointin up and crispy and have yellow/brow tips. The leaves also seem to be showing big spots but the color is difficult to see since the leaves are grey/purple/brown the spots seem greenish/yellow
4 years ago
5
5
Solved
Splifranger
Leaves are dark green light green and brown spotsFan leaves starting to turn yellow and have some brown tips and spots the sugar leaves are getting some brown tips to dont know if theres anything a can do to fix this or is this normal stopped giving nutes but the problem doesnt go away so dont really know whats the problem
Leaves. Edges burnt
Leaves. Tips - Burnt
4 years ago
1
2
Solved
420SNoWfLaKe420
What’s the cause on nute burn during flush????What is the cause of nute burn during flushing the the plant is in soil and was fine until I started flushing after the first flush the leaves started exhibiting what looks exactly like nute burn
Leaves. Edges burnt
Leaves. Curl down
4 years ago
5
4
Solved
Vortex
Wait plz, put me out miseryWhat kind of deficiency?!
Help me to fix this 💩😁👌
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl down
4 years ago
2
2
Solved
VeggieTales
Yellowing, burnt tips and edgesHello fellow growers I noticed this happening rapidly after I top dressed. What kind of deficiency is this? Is this nutrient burn as well as a deficiency? Solely a Ph problem?. So far I’ve come up with maybe potassium deficiency and improper Ph when watering? Please help
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl down
4 years ago
1
1
Solved
Obeezy4Sheezy
Nute Burn or something Else?Sup Guys first grow of Crit Jack 2nd week of flowering and i started noticing the top leaves on one cola showing some signs of something wrong halp! want to know it its just nute burn or something more serious
Leaves. Edges burnt
Leaves. Color - Yellow
4 years ago
1
Solved
coriander
What to do? Leaves are getting worse.Had some light strain earlier on, but now im leaning toward a deficiency. Been feeding on a low-dose flora series schedule with clean ph water for every other feed. Just had clean water yesterday and nutes 3 days before. Dry out between feeds. Nitrogen? Calmag? Other?
4 years ago
3
2