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Back to Grow Questions
Nutrient burn
onefox
started grow question 6y ago
crazy burning on the big plant. I'm not sure what I'm doing wrong here. I cut the nutrients back to 7ml/gal today. This is after the trimming the worst leaves
Solved
Week 1
Leaves. Color - Dark-brown
likes
SaintSativa
answered grow question 6y ago
What I would try first is to bring the ph down to 5.5 - 5.8. The 6.7 its at is out of range for dwc and proper uptake. Good luck
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Selected By The Grower
Similar Grow Questions
Solved
XiceX
what are those spots on the leaves, they appeared last week. I try to rinse the root with 2 L of pH 6.7 of water without nutrients, but it seems to continue
Week 7
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
1
Solved
Danger90946
Brown spots older fan leaves
Hello all can some one please help identify what is going on here. I am watering every two days nutrients only Sunday and all watering PH to 6.3-6.4. Just noticed the brown spots some a few older fan leaves.
Week 7
Leaves. Color - Dark-brown
5y ago
1
2
Solved
Therapy420
Response to Weezy
Hi @Weezy90, the left ones are indeed the Purple Punch. So straight water now for the last week/2 weeks? The one on the right is the NL and is 2 weeks behind the PP's so I'll lower the nutes on that one. Thanks
Week 10
Leaves. Color - Dark-brown
5y ago
1
1
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. Deficiences
1y ago
7
4
Solved
GreenPower
Old leafs fading and discoloured. Need help!
Hello growers. Something’s up with my girl! Older leafs are starting to look unhealthy. Not sure what I should do to help her. Any advice?
Week 2
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
3
3
Solved
DegenMJ
Grayish brownish fuzz on sugar leaves
Turned my northern lights plant around today and noticed this on the back of it. Yikes! Is it bud rot, pest damage, something else? If it's bud rot I need to get rid of it ASAP because I have 6 other plants in the same grow room.
Leaves. Color - Dark-brown
4y ago
3
3
Solved
PoppaMac
Anybody know why I’m seeing brown spots and burnt tips? I think it might just be time for a res change. Haven’t done it since I flipped and she’s been drinking about 1.5 gallons a day for the last 2 weeks.
Week 10
Leaves. Color - Dark-brown
8y ago
1
4
Solved
TheProfessorGrows
PH Nute Lock!!
Having some serious PH and nute lock issues. Watered with nutes for first time last week. Started showing cal/mag deficiency. Tested runoff on last water and was at 5.5 with 6.5 in. Flushed with 7.0 water and runoff still 5.5. Plant seems to be getting worse!
Leaves. Color - Dark-brown
4y ago
1
1
Solved
Gemini_Grow
Manganese deficiency or rust?
Could it be manganese deficiency or rust? Few upper leaves are affected this ways showing some brown dots.. Could it be due to a PH fluctuation I had recently? Need some help
Leaves. Color - Dark-brown
Feeding. Deficiences
6y ago
1
2
Solved
willertex
Brown spots and claws leaves
Brown spots on lower leaves and claws upper leaves. What the hell is that ?
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
3
4
Solved
StonedWolf
Hello fellow experienced growers, is what I see on this leaf, combined with a reddening of leaf and main stems really signs of a CalMag deficency? Or do I have another problem? And is 1 ml CalMag Agent enough to counter it? Dont wanna risk anything so close to the goal...
Week 9
Leaves. Color - Dark-brown
7y ago
3
2
Solved
kushinator
Help! Lower fan leaves drying out slowly at the tips and edges. Doesn't look like nitrogen deficiency to me, but please prove me wrong!
10 days ago the lower set of leaves started drying out (they get brown not yellow). They don't receive light, but now it's already started showing on the third set of leaves. Does it look like nitrogen deficiency or can it be something else? Just gave it full strength nutes.
Week 6
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Color - Dark-brown
6y ago
2
2
Solved
einamio
First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)
I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static
Week 11
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Leaves. Other
1y ago
8
6
Solved
Komar85
Dos si dos nutrient ?
conds ago Hi growers could i get some advice with my plant as i am First time growing auto i start nutrient Really late day (35 First signs off flower) First nutrient ( day 42) i add Hesi booster 0.5 ml /1 l and Hesi flower green bootle half dose. And day after something like tha
Leaves. Color - Dark-brown
5y ago
1
1
Solved
ChuckyK
What is this brown spot?
What is this brown spot? 18” from light. Just fed about 10 hours ago with dr.Earth 1-1-1 liquid solution watered in with 1/4 gallon of water. It is the only spot on whole plant. I know the temps are high. Wondering if it could be something else.
Week 4
Leaves. Color - Dark-brown
6y ago
3
4
Solved
GEESTGROW
Black tips and spots on the leaves
I'm having problems with the leaves. I estimate that the plant has about two or three weeks left to live, and I don't want to have issues now. Some tips are darkening, and spots are appearing on the leaves
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
3
2
Solved
MedicineMaker
Calcium Deficiency?
Any ideas on what this could be? Water 90% RO with 10% well water 110PPM, PH 6.0-6.5, Autoflower, Day 29 of grow, Fox Farm Ocean Forest, No nutes added yet as I heard FFOF was hot for autos, plan on nutes at preflower, 20/4 schedule w/240LED 100% at 90CM, DLI 40.
Leaves. Color - Dark-brown
3y ago
2
2
Solved
Netherman
Girl scout cookies auto
Hey guys can you tell me what is the problem here ? Is it too much fertilizer or too less ? I'm using plagron and plagron light mix soil. I can't check pH because I don't have EC meter :( they're in pre flowering state I gave them 1/4 grow feed and 1/2 flowering feed
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
5y ago
2
2
Solved
QueenNitha
Help
What’s wrong with my plant?
Week 6
Leaves. Color - Dark-brown
6y ago
3
3
Solved
DreamOn
Brown tips on seedling
I'm having an issue with my seedling. It has these brown tips and is a bit strange on one side, what could this be? Appeared before nutrients was added. Light seems to be okay. Also temperature but been some fluctuations.
Leaves. Color - Dark-brown
6y ago
1
1