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Back to Grow Questions
Brown spots on some leaves
EvilGrower
started grow question 5y ago
Hello! I've noticed some brown spots on some of my leaves, localized to one half of the plant. Any ideas what this could be?
Solved
Week 7
Leaves. Color - Dark-brown
likes
Soloism
answered grow question 5y ago
Magnesium deficiency?
1 like
Complain
Selected By The Grower
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Solved
Growdaddy420
When growing different strains in a RDWC system how do you balance plants with different nutrient needs. My amnesia auto ran into a major cal-mag issue and now is experiencing nitrogen toxicity, while my feminized Jack Herer's are largely unaffected. Thanks for the advice.
Week 7
Leaves. Color - Dark-brown
7y ago
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Komar85
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Noela
Deficiency/Light Stress Issues
What else can I do? Brown curled tips and spots on older fan leaves climbing up towards main cola. Flushed with pH’d RO yesterday, but was only able to get pH to 6.7, also added small dose CalMag at end of flush. Light wattage has also been reduced by half for the last week.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
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Solved
Drgreen13
Please help me. This has happened over night.
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Leaves. Color - Dark-brown
3y ago
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Solved
Aleatoric
Possibly Potassium Deficient? Based on ALL the pics I could find, but not sure.
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Week 5
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
1y ago
3
3
Solved
Efka710
Hey guys see week 13 day 90 last picture is it Mag toxicity or deficiency? I been watering with molasses 4ml every second watering
Week 13
Leaves. Color - Dark-brown
6y ago
1
2
Solved
CanaryGrow
Leaf issues
Looking at the leaves, what you think is the issue with this plant? every single morning i have couple of totally yellow leaves at the bottom, edges are getting dark green and then dry. I flushed the plant but didnt see any improvement. I have 2 more plants that are doing great.
Week 14
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
2
2
Solved
DrJoint
Ph issues part 2
Hi guys! It has been a while after flushing, repotting into bigger pot with fresh medium and feeding her only with water. I bought Sensi cal mag extra and I need your advise if it can be used together with BioBizz nutrients, I could get only this brand in my local store
Leaves. Color - Dark-brown
5y ago
1
1
Solved
MikeVA
Stressed plant
Having a deficiency or toxicity... Anyone know off hand what this is?
Leaves. Color - Dark-brown
3y ago
1
1
Solved
CoolGuy123
Leaves keep turning brown and yellow
It all begann with what I thought was light burn. I then considered it CalMag deficiency. Giving it CalMag did not stop it. My current guess is too low pH due to strip inaccuracies, so I gave it around 8 today instead. What do you recon, why could it keep getting worse?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6mo ago
4
Solved
TheIceCreamParlour
Check out my week 7 update for more info. Only one plant in the tent affected so it's really bugging me?!? Thought it was overwatering. Left them 2 days between feeds and they are bone dry and pots are light. Any suggestions or could it just be a trait of the Pheno?
Week 7
Leaves. Color - Dark-brown
7y ago
1
4
Solved
lovely_neighbours
Brown black spot crispy edges
I need help! Northern Light has Reddish brown spots turning dark-gray and crispy dark edges on the top leaves! It looks like a different issue from week 6 where gray spots appeared on the bottom leaves? Any ideas? Thanks
Week 8
Leaves. Edges burnt
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
3y ago
2
2
Solved
rosemary420
Is this a nutrient burn?
What should I do?
Leaves. Color - Dark-brown
5y ago
3
2
Solved
Kripoulas
Deficiencies? Brown spots, yellowing and purple stems
What is this deficiency or maybe toxicity and whats the solution? She is fed with biobizz chart instructions but with every other watering. She is big so I'm guessing I should water with nutes every time? She showed this first week into flowering.
Week 6
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
4y ago
3
3
Solved
IceeTea31
Help
What is the issue? do they need calmag or should i flush them? if i should flush them what ph should this water have?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
5
5
Solved
AUTOASSASSIN215
Heat stress or Root rot ??
Hey my 7 month old plant not doing too good the leaves are turning brown and crispy Might be heat but then again Might be bud rot and it’s spreading like wild fire also i notice not a lot of flowering growth idk weather to chop it down or keep fighting
Leaves. Tips - Die
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
Solved
GanjaGartenZwerg
Braune Blätter in Blüte
Pflanzen bekommen braune Blätter gedüngt wird mit BioBizz auf Erde die pflanzen standen leider ein paar Tage zu nass ich hoffe ich habe kein fusarium drinnen pflanzen sind schon seit drei Tagen nicht mehr gegossen worden und immer noch nass was kann ich ma
Leaves. Color - Dark-brown
2y ago
2
7
Solved
Ganga_Grower
Yellow/brown splodges
Hi there My plant is still young @ just over 2 weeks now. She has these brown/yellow splodges on only one leaflet but the new growth is looking a healthy green, so im not too concerned at this point. I am curious as to what it is though. What would you guys suggest it to be?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
3
2
Solved
Smoking_Joe_Frazier
Nutrition deficiency or nute solution on leaves during watering?
Hi Growmies,during my monitoring routine I found some brown spots on the leaves. Not many but on some leaves the brown spots have become transparent and I can see through the leaves. Any ideas what could have caused the brown spots? Perhaps not enough CalMag? Rest looks healthy.
Week 6
Leaves. Color - Dark-brown
1y ago
4
3
Solved
telez00m
Curled leaves and brown spots
Please help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.
Week 9
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Dark-brown
1y ago
1