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
Any ideas on what's going on with NL-2? Fan l...
G_mang_0started grow question 5 years ago
Any ideas on what's going on with NL-2? Fan leaves are discoloring, interesting pattern. From Websites, I'm thinking a potassium problem, but am not sure. And am not sure how to correct this close to harvest (3 weeks give or take). Thoughts?
like
motaman311answered grow question 5 years ago
I think it is a magnesium issue, possibly some calcium as well. You are using a lot of P and K especially with The Open Sesame. The other nutrients contain high amounts of phosphorus and potassium as well. Potassium and calcium are two nutrients that can cause magnesium lock-out when added in excess. Excessive Potassium blocks the absorption of calcium, magnesium, zinc and iron. It is a game of ratio's that you must play and when you add 1 thing it effects another. Happy growing! 👊
DankGardeneranswered grow question 5 years ago
With a marijuana potassium deficiency, you’ll generally see symptoms on older leaves, but not always. Sometimes you’ll see the symptoms at the top of the plant. Leaves with a potassium deficiency get yellow, brown, or burnt edges and tips. The burnt edges may look a little like nutrient burn, except the affected leaves also start turning yellow in the margins. But if your this close to harvest I wouldn't worry. Try lowering your pH to 6.1 potassium is best absorbed at a lower pH.
like
Complain
Fruitgroweranswered grow question 5 years ago
I would say it's a cal mag issue, you're not providing any call mag on your nutrients and it s does provide some very important minerals not just calcium and magnesium. So you pain water every now and then. Might be worth flushing out and adding some call mag to your next feed.
like
Complain
Similar Grow Questions
Solved
Cali_Grown_420
Calcium Deficiency Won’t Go Away DWCSo plant #1 is still having some Calcium deficiency issues. I’m using RO water and giving the recommended dose of CaliMagic which is 1tsp(5ml)/gal. I’m in DWC and using LED full spectrum lighting. Why can’t I stop these spots? Should I give more than recommended dose of CaliMagic
4 years ago
6
5
Solved
yinandyang
Dying lower leavesHi.
Am thinking this is just the bottom leaves starting to die off. But am slightly worried it could be signs of something else
Week 7
Leaves. Color - Mottling
4 years ago
3
3
Solved
WeedVV
Leaves spotsHi guys, yesterday these leaves suddenly look like this, is it a serious problem? How can I solve it
Leaves. Color - Mottling
4 years ago
3
3
Solved
FoTwenny
Leaf discolorationDay 36: I noticed some slight discoloration with rusty/yellow looking spots on the Triple Cheese plamt. It was pretty faint on just a few leaves with a couple worse than the rest. I included a photo of this particularly bad looking leaf. Otherwise, she seems to be healthy. I was
Week 13
Leaves. Color - Mottling
4 years ago
13
7
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?
4 years ago
1
1
Solved
the_canna_scientist
Fast-growers starting to show issues.Got some issues on these fast growers. I've been treating it as a cal-mag deficiency, however I've been feeding calmag for two weeks and its only getting worse it seems. Any thoughts? PH is 6.0-6.3, PPM 444 feed, RH 47-50%, Temp 77-81f.
4 years ago
3
2
Solved
Habosabin
Is this Yellow spot septoria?Hi gromies. Is this yellowing caused by septoria? Or just normal N deficiency during flower. I can see minor pest remains ob leaves and stuff but not affecting plant overall. Plant in good air flow and humidity around 50% so I question whether it's septoria. thx in adv.Week 11
Leaves. Color - Mottling
4 years ago
2
2
Solved
NMGDOC
Bugs, spiders or fungus?Hi everyone, what should i do with this in floration? Neem oil? Soap?
Im starting the 9 week and i think that if i use neem oil now, it will leave some taste on the buds. I touched some leaves and the white marks stay, it isn't powder, but is white.
Thank you 💚
Leaves. White powder
Leaves. Color - Mottling
Leaves. Other
4 years ago
3
4
Solved
Cannabisflakes
Nute Burn?So, been growing these 4 girls, 13 weeks now. Everything for all of them are the same.
Plant n#1 started to show some signs of burn leaves and curling down.
Any ideas of what could be?
Leaves. Curl down
Leaves. Color - Mottling
Feeding. Other
4 years ago
1
1
Solved
DogDoctorOfficial
Spots on older leaveshi guys, some of my girls, in this case the AP and the BB, are showing some spots on the older leaves. i think it mith be a nutrients situaction and i'm intruducing them to calmag and see how they react. Can anyone please guive me an opinion on this ?
thanks <3
D
Week 10
Leaves. Color - Mottling
4 years ago
2
2
Solved
DrDank22
What nute def?What deficiency are we looking at? K?
Week 8
Leaves. Color - Mottling
4 years ago
1
1
Solved
Terra_Farma
Calcium Deficiency? pH problem?Brown spots on some newer growth now on both plants.
Canna Terra Flores brings the pH of water down too much even at a half dose. I didn’t think I’d need to adjust pH much in soil.
Any suggestions at this point?
Thinking to just feed plain water to bring the pH up at the roots
Week 8
Leaves. Color - Mottling
4 years ago
3
3