By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Rust spots on leaves, second grow and need some confirmation.
JebusHealsstarted grow question 5mo ago
I'm noticing rust spots on my leaves, which I suspect could be due to nutrient burn or lockout, given the PPM is unusually high for this stage of growth. To tackle this, I'm planning a simple flush with some Cal-Mag, keeping the pH at 6.5. Does this sound like the right approach?
likes
OrionSparklesanswered grow question 5mo ago
It looks more like an excess, nitrogen perhaps; I don't see anything alarming yet. Excess lime/mag can also create stains, with respect to washing..I would choose to give them a few waterings with only water, adequate pH, and continue with the waterings with fertilizers with lower doses. 🙂
Similar Grow Questions
Solved
5Nc0z
Las guachas tienen hambreYa hace 4 semanas que dejé de fertilizar pensando que estaba más cerca de la cosecha de lo que realmente estaba. Debería volver a fertilizar con alguno de floración o lo dejo así? Ya más de la mitad de los tricomas están lechosos.Week 11
Feeding. Deficiences
3y ago
2
Solved
Gatterzzz
Can anyone help identify this tox/deficiency?Week 6 I noticed that all the new growth has burnt tips I assumed this was a bit of a nitrogen toxicity problem since the leaves were all a nice dark green, no pale leaves were popping up. Also held back on feeds for a few weeks. Other forums said it’s normal but want to be sure.
2y ago
8
7
Solved
tiasmaaa
Magnesium Deficiency ? How can I fix it ?got a little deficiency (maybe burned? but I think not).
I'm pretty sure it's magnesium's deficiency, it happens after a flushing. I added 2 times the last 2 weeks a little bit of CalMag (BioBizz, but ive bought it 2 years ago, maybe it doesn't work well idk).
Leaves. Curl up
Leaves. Color - Yellow
Feeding. Deficiences
3y ago
5
5
Solved
GWSD82
Should I remove foliage affected by deficiency, or just let it ride?Autoflower started showing sign of deficiency at week 8. Assuming CalMag, as I filter my water and affected area is new growth at top of plant (see pic).
1) Can someone confirm CalMag deficiency or something else?
2) Should I remove affected leaves or leave them be?
Thanks
5y ago
1
3
Solved
contrapunk
Recurring Cal Mag issuesI’m already at the maximum recommended cal mag dose of 1ml/litre (with nutes at 1000ppm or E.C. 2.0) and I’m still facing issues.
It went away for a few days, but it’s now back.
Should increase the cal mag dose and cut back on the macro nutes to maintain 1000ppm?
5y ago
1
1
Solved
Scilef
Help me to diagnose my plantWhat is this?
I had a huge problems with a feeding, so it may be everything, but I want to know what's disease is this and what can I do.
Please, read the diary to get more information about the past weeks.
Other symptoms:
- Curled down leaves
- Burnt tips
- Leaves dropping off
2y ago
5
6
Solved
Dufftwt
Magnesium deficiency or probable lockout in coco coirThere's chlorosis between the veins and red stemming, indicating a magnesium deficiency, however both calmag and alot of epsom salt (EC is within target dw) were used to fix the deficiency and it seems to still be progressing, is this lockout ? more info in the answer to thisWeek 6
Feeding. Deficiences
2y ago
5
4
Solved
Dillsnills
I'm still trying to raise my soils pH, I'm using Olympus up which has lime, should I give a higher dose or jus pH water till pH runoff goes up?If I use nectar for the gods Olympus up which has lime in it and I'm having low soil pH probs, should I use more Olympus up and adjust my pH and would that help raise my soils pH? Or should I jus use pH water until my pH runoff is where I want it? Advice greatly appreciated.
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Deficiences
4y ago
2
3
Solved
MrGreen92
Why is this deficiency or toxicity spreading so fast!?Had a light case of what was believed to be calcium deficiency. Ph, EC and ppm all seemed normal for run off and I've halved my nutes but kept a higher dose of CalMag going. Didn't water them last night now it looks even worse, what should I do and will the end product be ruined?
Week 9
Feeding. Deficiences
5y ago
5
4
Solved
Kayaboy
Is it deficiency or locked or just harvest time? 1400ppmweek of heat stress/light burn -> turns yellow and bit crusty on top as well as sugar leaves -> treated as a deficiency full strength bloom -> soil over 1600 ppm, dropped it to 1400 but forgot to check ph ..2 weeks since no progress..Flush with new batch of 1/3 base strgnth or?
Week 18
Feeding. Deficiences
6y ago
5
8
Solved
Lemme_Adam
Nitrogen toxicity? Deficiency? Something else? Stumped!I don't get it. Is this N toxicity? Serrated upturned edges, clawing, slow growth. But how? FFHF 75% FFOF 25%. Just Cal-Mag water. No food. NLS in bottom 3rd of pot. Not wind burn. Not too hot/dry at all. N deficiency? Yellow leaves on first bottom two only. I'm stumped.
2y ago
4
4
Solved
ezyields
Should I use a pH up -product?After mixing nutrients with my tap water, the pH of the mix is around 5.5. Should I use a pH -up product? Plant is showing a slight nitrogen deficiency.
My tap water base pH is almost 8.0, but the Biobizz nutrients bring it way down. I am using 50% of the recommended dosage.
Week 7
Feeding. Deficiences
4y ago
6
5
Solved
UpInSmoke420
Cal mag helpI belive i have a calmag issue. Im using bio bizz calmag but im not sure how mich to use? Can someone help please?
Feeding. Deficiences
5y ago
3
5