What kind of deficiency is this?
Ezzjaybruhanswered grow question 5y ago
I believe this is potassium deficiency.
K deficiency causes internal temps of foliage to rise and it causes the protein in the cells to burn and degrade. Usually happens on the edges of the leaves.
Similar Grow Questions
Solved
Jaygrow1020_autoking
Can anyone tell me what I'm doing wrong? This is my blueberry auto. I'm using advance nutrients. Just fed her this morning with bloom, micro, grow, big bud, bud candy, voodoo juice, and sensizym
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
6y ago
3
2
Solved
CreamOfTheCrop
Dead spots on leavesI've been struggling with same problem from beginning of grow, leaves having these dry yellow/white spots. The first week I used too high pH which later I replaced by rainwater - new leaves were healthy, but last night I left tent at 70% RH. Somehow it returned - details in diary
6y ago
3
2
Solved
Half_Synthetic_Growing
Droopy leaves, weird spots.Does anyone know what's wrong with that bottom left plant? Those spots appeared pretty soon after I cleaned those filters. I'm thinking that it's a stress caused by that cleanse, no chemicals or such were used, but some roots were torn in the process. Deficiency? Disease?
4y ago
4
4
Solved
StartGrowingShxt
Help! Discoloration in second set of true leavesYo! A lil help please. On about day 19 with this DBHP and just experiencing some discoloration on the second pair of true leaves. I was told by the breeder that she is a magnesium whore and have been supplementing every other watering. Just trying to diagnose early.
2y ago
1
5
Solved
NewtDawg
Crashing and burning?Mayday Mayday. Some very yellowing leaves which appear to be bending down. Alternating water and nutes, reduced quant, with good runoff PH in early 6’s, no working tds monitor. Lights @ 18”, full tilt. Too close and/or nute issue? Flush the shit out of it ur no? Thanks gang x3y ago
3
Solved
MrTasuri
Nutrient lockout or light burn?Hi guys. I'm facing problems after problems :/ I changed my soil and some of the plants turned back from yellow to green, which was very nice to see. However, now leafs tips seems to burn and I'm wondering does it look like nutrient lockout or light burn? Thank you!
5y ago
4
5
Solved
Ph0en1x
Prevent getting worse leaves colourHello everyone,
The plant is on day 4 of flowering, and the symptoms (light/yellow tips) are getting lighter and spreading.
This is the nutrient solution I watered with:
------
Terra Bloom: 5 ml/L
CalMag Pro: 2.0 ml/L… Show more
Leaves. Curl down
Leaves. Color · Yellow
1y ago
1
3
Solved
KINGT88
From previous post just some more infon on what I feed and how, on a 12So 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
4y ago
5
5
Solved
Jhort
Is this lockout or some sort of deficiency? Soilless medium- using biothrive, biogrow, and cal-mag. Autoflower Lemond auto
Prior to yellowing the plant looked very droopy for 2 wks.
Roots look great
Leaves. Curl down
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
1
2
Solved
dillande3
Leaves Dropping off and Yellow, Day 28 Bloom. both plants same symptomHello, Gelat.OG and PGK both has some Yellow/Brown Laves under the canopy, Leaves dropping as well, every day I can see this, day 28 Flowering. I have no Idea what is this about, Also not over watering, this is Organic living soil water only method, Pls let me know guys Thanks
4y ago
5
5
Solved
Khmma46511
Now what? Help me please!WTF! what now? Got neem oil sprayed it on my leaves to get rid of the annoying spider mites, now this... leaves yellowing, slight brown tips, curling. I have an idea but not 100% sure n how do i fix it. Is it a few different things or just one? I'm getting irritated. Week 11
6y ago
4
Solved
Shmokeyb
Problem or notFirst time. Week 7 flower in canna terra professional plus soil and canna terra nutrients, ph always 6.0 to 6.4. Temps have been reaching 32 but I've managed to get it to 28. Why so yellow?
Leaves. Curl down
Leaves. Color · Yellow
5y ago
5
5
Solved
Cannabingrowin
Leave colors on 3 week old clones blackberry Kush in Coco coir and a jiffy diskSudden yellowing and discoloration of a e or 4 week cutting. I water it when I see the Coco getting a little dry. I make sure there is at least 20% of run off water. I watered with pH corrected water to pH of 6. I also add a small amount of canna bioryzotonic for their roots.
5y ago
3
9
Solved
Wilsongrowwell
Drooping yellow leaves on seedlingsI have a 2 week old seedling and it’s two leaves have gone slightly yellow from the tip inwards and have started drooping, not extremely but enough to see there is a problem. Any help will be massively appreciated, thanks in advance !
Leaves. Curl down
Leaves. Color · Yellow
Leaves. Color · Pale
6y ago
1
Solved
BruceBlack
Yellow crunchy leavesIs this normal during the last weeks? I've been feeding just ph'ed water during 10 days after the PK 13/14
Any idea would be awesome, thanks in advance.
Leaves. Edges burnt
Leaves. Curl down
Leaves. Color · Yellow
6y ago
3
3
Solved
DabNinja710
new growth turning yellow.I've noticed on both my gurls more on the G.G. Auto than the Zkittlez Auto. Bothe the new groth and flower areas are getting yellow But the old growth leafs are fine except there starting to curl down. Anyone could help? I tried to take pictures but it wouldn't really show up.
6y ago
1
1
Solved
PaxIlluminare
Does anyone one know the deficiency causing the leaves to yellow in this fashion?
Leaves. Curl down
Leaves. Veins · Yellow between
Leaves. Color · Yellow
4y ago
1
1
Solved
bud_rick
Nitrogen deficiency in clone transplanted 9 days ago?I just grabbed a few clones last week and Immediately transplanted them into 2 gallon smart pots with ocean forest soil. I’m confused because it looks like the plant is nitrogen deficient which shouldn’t happen within a week of going into ocean forest soil correct? I also watered
Leaves. Curl down
Leaves. Color · Yellow
4y ago
1
1