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
What is this rust discoloration on leaves, and how can I stop it?
promostarted grow question 4 years ago
Does anyone happen to know what is causing this rust colored discoloration on fan leaves? It starts on bottom leaves, and moves up. Also seeing yellowing on leaves, and not sure if its pest issue, light issue, deficiency, or watering concern. Super nervous plants are dying🙁
like
JUNGLE_B4RNSanswered grow question 4 years ago
Proper Calcium deficiency due to an excessive amount of ammonium, potassium, magnesium and/or sodium in the root environment. The absorption is curbed mostly by ammonium and least by sodium. It can also be a problem with the evaporation caused by an excessively high EC value of the soil, check the EC of the drain to make sure.
LostWorldGeneticsanswered grow question 4 years ago
Hi mate, i agree @B4RNS, according to your Ec, it looks like nutes deficiency (Ca and N), increase your Ec to 1 ms/cm, after a few days, everything will be fixed.
Test the run off Ec, it should be lower or equal to what you give. If greater, juster water with no nutes (but the good PH)
Take care
1 like
Complain
Hashyanswered grow question 4 years ago
Hi I see your using remo nutes and there cal mag supplement. If your overall Ec is at 0.6 like your diary says I would increase the strength of the next feed. Also keep an eye on ph. Remember to get run off so you don't get salt build up in the soil. I don't tend to feed with every watering in soil I alternate. Always let the soil dry before watering.
1 like
Complain
Similar Grow Questions
Solved
usernamenulltwo
crispy leafsBurn and curling drY leafs
Soll I Fluss those babies hardly or just leave it like this?
Week 5
Leaves. Other
9 days ago
1
2
Solved
skylarTHEknight00
Droopy leavesMy leaves are droopy like as if i overwatered, its been 2 days since ive watered my plants and only one is drooping like its been overwatered. there is no discoloration on the leaves, no spotting no brown no yellowing. can someone diagnose possibly?
Leaves. Other
16 days ago
1
1
Solved
TheObserver
Fatal ovewatering? Will she survive?Ugh! One of my two plants Is dying. I suspect overwatering associated with some other issue I can't spot properly. 58 days flowering. It was my first flushing session, not a good start.
Her sister has no problem. Poked holes in the dirt, raised temp, maxed the fans. What else?
16 days ago
2
2
Solved
Luntis
holes in leavesGood day, please help, what is wrong with my flowers, there are these holes on some of the leaves
Leaves. Tips - Burnt
Leaves. Other
13 days ago
3
3
Solved
Rao_Paani
First Grow (2nd week of seedling)I am a beginner growing autoflowers in 3 gallon pots. As of now, everything is going good with just one issue in my Gelato plant. The leafs are yellow and new ones also comming in yellow colour. I user Biobizz light mix kn top and biobizz heavy mix at bottom of pots. Any help plz
Leaves. Too few
Leaves. Color - Yellow
a day ago
2
2
Solved
All_our_small_plants
Was ist das?Hallo weiss jemand was diese zwei kleinen dinger sind die and den stillen wachsen? sehen aus wie mini blüten und die obere auf dem bild von tag 24 hat weise stigmen, ich bin mir ziemlich sicher das es keine mänlichen blüten sind aber sie wachsen so komisch.
Buds. Other
Leaves. Other
Setup. Strain - Autoflowering
2 days ago
3
2
Solved
yoinky_sploinky
Brown/yellow/purple leaves inThis started out as brown spots on big fan leaves and has turned into what you see on the pictures. I've been ignoring the discoloration until I was greeted by some wilted, dead leaves on plant #2 today.
I'm not worried at this point, just really want to know what's happening
4 days ago
2
2
Solved
RecordSet
Yellow sugar leavesI am waiting for a low-THC strain to develop amber trichomes and I found two buds with these yellow sugar leaves. There is no bud rot, should I wait longer to harvest? Also, do CBD strains develop amber trichomes, or should I harvest now? Additional details available in growdiary
Buds. Other
Leaves. Color - Yellow
5 days ago
1
5
Solved
heinzhammer
Toxicity, Deficency? Overfed, Underfed? Lighting issue?Toxicity, Deficency? Overfed, Underfed?
The Plant had purpe stems right from the beginning.
But the leaves had a pleasent green color.
Until week 4 of flower. very light green almost yellow.
Last grow i had the same Problem with Lemon Drizzle.
The Buds themself look amazing
Leaves. Color - Yellow
Leaves. Color - Pale
4 days ago
3
9
Solved
FrostyCloudzz
Any tips please !Any helps don’t know what’s wrong they are thirsty and I give them less in 5 gallon pots 0.5 liter maximum 2-4 days ( by weight ) )
Nutrients given correctly / ph is ok but maybe my air and temp conditions are the problem or tu mich nutrients , less water , to much I don’t know
Buds. Other
Leaves. Curl down
Leaves. Color - Yellow
25 days ago
2
3
Solved
RecordSet
Brown Spots DiagnosisI need some help diagnosing these brown spots please! I am considering light burn, calcium deficiency or maybe PH imbalance.
PH is usually around 6.8, humidity near 60%, temps averaging 27°C/81 F, light distance at 25 cm, nutes and water schedule is disclaimed on my current grow
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
a month ago
2
3
Solved
Fronti89
Jemand schon mal gesehn ?Hat jemand schon einmal so ein Wachstum bei einer Pflanze gehabt? Ich habe sie jetzt ausgetauscht weil das Wachstum auch stagniert.
Leaves. Color - Yellow
a month ago
4
Solved
kivocsa999
yellow leaves on 3rd weekls 25 fast buds , have been feeding every other watering with canna terra vega 2m for 500ml of water with 2ml canna rizhitonic,i have seen the yellowing and thought it is calcium issue so i added a half ml of cal mag extra , ph is balanced on 6.2 , but the yellowing is worse
Leaves. Tips - Burnt
Leaves. Color - Yellow
a month ago
1
2
Solved
Herikus
Help, what are those weird yellow spots in late veg?Hello everybody, I've checked in on my plant after I was away from home for 2 day. Now I come back to see these ugly yellow spots? During day 23°C / 55% humid. During night 18°C / 50% humid.
Checked the whole bud, but no insects. My other ideas are mold or stress from the light?
Leaves. Color - Yellow
Leaves. Other
Other. Mold
19 days ago
1
2
Solved
Luntis
yellow leavesGood day, please what could be the cause? It only has a few flowers, the rest are ok.
Leaves. Color - Yellow
17 days ago
2
2
Solved
ivanosch
Dry yellow and brown leavesAll plants get same nutris and water, what is the problem with some of them?
Need help
600ppfd
69 f
55-60 humi
Ec 1,2 plagron grow + root power
Leaves. Color - Yellow
Leaves. Color - Dark-brown
20 days ago
3
Solved
TheObserver
Flushing time?Hi good people, do I have to start flushing on one of my two plants? Just started week n.14 from seed.
Beside the wind burn, will She be ready to be harvested in 2 weeks?
Buds. Other
Leaves. Color - Yellow
19 days ago
1
1
Solved
DRXXI
Jetzt schon 1-2 Blattpaare entfernen? (Pflanze hinten links)Die Gorilla Zkittlez Auto hinten links wächst sehr dicht und tief, kann ich jetzt schon 1-2 Blattpaare entfernen um den Seitentrieben mehr Licht zu geben oder sollte ich noch warten bis die Pflanzen größer sind? Bisher keine Trainingsmethoden angewandt.
23 days ago
1
1