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Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 4y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color - Yellow
likes
TimTheTerpMan
answered grow question 4y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
1 like
Complain
Selected By The Grower
Similar Grow Questions
Solved
NYCoffee
Strange yellow spots on old leaves
Hey guys, I noticed that strange yellow spots appeared on old leaves. What could be causing this? I'm using ebb & Flow hydroponics Solution: Hesi PowerZyme 1 ml/l Hesi - SuperVit 0.01 ml/l GHE - FloraBloom 1.25 ml/l GHE - FloraMicro 0.65ml/l pH = 5.65 ppm=430
Week 4
Leaves. Color - Yellow
5y ago
1
3
Solved
ThcSrb
Spots on leaves and little twisted...
Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?
Week 3
Leaves. Twisted
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
1
5
Solved
Colombian_gold
Strange marks on leafs
Hey whats up everyone! I noticed some strange marks on my girls today, not sure what could be the cause if them. Ive tried googling but can’t seem to find photos that matched the problem. Anyone have any ideas? Thanks in advance
Leaves. Color - Yellow
Leaves. Color - Pale
Leaves. Other
3y ago
2
3
Solved
BullWeedDog
Hojas de mi plantas puntas amarillas
las puntas de las hojas de mis plantas están amarillas no en todas sobre todo la de la parte de atrás del indoor, tengo reflector 400w a unos 50cm de distancia de las plantas, temperaturas a unos 28C. Que puede estar ocasionando esto!
Leaves. Color - Yellow
Setup. Strains - Photoperiod
Techniques. ScrOG
4y ago
1
1
Solved
ykscotttyk25
Durban Poison
What can I do to help this
Leaves. Curl down
Leaves. Color - Yellow
1y ago
2
2
Solved
MRHERB
Nutrient deficiency or nutrient burn not sure
Nutrient deficiency or burn, at the bottom of the plant
Leaves. Color - Yellow
Leaves. Other
5y ago
2
4
Solved
Ryuko
Yellow leave tips?
Sooo I found that some of the leave tips are getting kinda yellowish dark and im not too sure if its the light thats not high enough or why this is happening. Humidity is about 55% and temp at 23 Celsius Thats not only happening on 1 or 2 leaves almost every leave has that
Week 18
Leaves. Color - Yellow
8mo ago
3
2
Solved
kitchenfarmer
Deficiency & delayed flower
Hi, so the little one from my previous question made it against all odds (the one in the 2nd row left):P Nearly all plants look a bit under the weather & 2 of them (Front left&the one in the back) have not started to flower yet while the others are at it since like a week or 2?
Leaves. Curl down
Leaves. Color - Yellow
8mo ago
1
Solved
CestalabTH
What's wrong with my leaves?
Want calmag? Help me broter🙏
Leaves. Color - Yellow
4y ago
1
3
Solved
Noob_quest
Yellow leaves black tips
What’s happening with this plant? After watering all my plants 2 days ago, one of them has been quite droopy and developed these yellow areas with dark tips. Is it a watering issue / heat / deficiency? Thank you
Week 4
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
3
2
Solved
SirBighead
Fading bottom leaves
Bottom leaves faded in color over the weekend and have started to turn yellowish. Is this a simple nutrient deficiency or something else I need to be concerned with?
Leaves. Color - Yellow
1y ago
1
2
Solved
Eagers
Nitrogen Deficiency?
Think I might have a Nitrogen Deficiency but just wanted to check and confirm with some of you? Leaves are slightly pale and yellow across the plant. I checked runoff Ph last week and it was 6.1 realised it can lockout some calcium so flushed with 6.7. Thanks
Leaves. Color - Yellow
5y ago
1
3
Solved
Roswell59
Nutrient Deficiency?
Do you think the way my Mimosa and Apple fritter look there’s a major deficiency going on with them?
Week 7
Leaves. Color - Yellow
Leaves. Color - Pale
Feeding. Deficiences
1y ago
9
3
Solved
KINGT88
From previous post just some more infon on what I feed and how, on a 12
So I use 5 ML per gallon of fox farm Grow Big Liquid Plant Food, And 5 ML Per Gallon Of Fox Farm Buds And Blooms Fertilizer. I'm barely staring to Introduce Cal-Mag so I don't think the Cal-Mag is causing the issue, I water every 2-3 Days. Temp is Right Around 80 during the day 7
Leaves. Curl down
Leaves. Color - Yellow
Leaves. Other
3y ago
5
5
Solved
Fishcake
Ph/defiancy/ruined
right I think my ph is off so I've fulushed the plant with water at 7.2 and the run off was coming in at around 6.4 if I feed them at 6.4 will that fix the problem I k ow its already a bit late aswell check my diary for more info I have multiple plants like this but not as bad
Leaves. Dropping off
Leaves. Color - Yellow
Feeding. Other
5y ago
2
Solved
heythere12345
What is this??
Anyone knows whats this and how to fix it??
Leaves. Color - Yellow
4y ago
2
1
Solved
halexxo
Bloque de nutrientes?? Ph?? O falta de calcio y magnesio??
hojas de abajo tienen un color amarillo, las más pequeñas del todo se desprendieron. Las hojas de arriba tienen tonos amarillos en las puntas. Usando nutrientes biobizz y siguiendo la tabla tal cual está indicada en todos los riegos. ¿Podría serbloqueo de nutrientes?
Week 5
Leaves. Tips - Burnt
Leaves. Dropping off
Leaves. Color - Yellow
2y ago
1
2
Solved
hweixd
Day 4, after emerging. Is this coloration on the cotyledons okay?
Humidity is 55 - 70, temp is around 20-24c, 50w full spec led It's my first time, and i think i have been watering it too much I also fed it 2-0-0 npk water with 4ml per liter and I since learned it's not okay. Will it recover? Is this too little grow for day 4?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
1y ago
4
2
Solved
Stinkygorilla
New growth lime green/yellow at centre
Please help me diagnose this deficiency or pest (plant 3 with the yellow new growth) last two pictures, no curling but looks like some pest damage, minor.
Week 15
Leaves. Color - Yellow
4y ago
2
3
Solved
HappyGrower420
what do you thing is the cause of the yellow leaves on my GG and Stardawg ? Growth is okay .Is it normal cause shes in the flower ? Maybe they dont need so many ? New growth is perfect
Week 10
Leaves. Color - Yellow
7y ago
4
3