The droplet pattern and the irregularity of it, combined with being alongside a chain link fence onto a green-looking-space leads me to wonder if something was sprayed and got on your plant.
Nice researching! I think you are right. Perhaps it might even be that particular disease along with a nutrient deficiency. That would cover both the yellow leaf and that distinctive ring pattern of the leaf spot.
I’ve never seen septoria cause spots like that on cannabis, but I always cut that shit back as soon as it looks diseased. Def seen it spot in other leaves (mostly grasses TBH which is weird)
I don't think it's septoria. The rings aren't right. Only thing I can think of is water droplet sun damage combined with a deficiency, but that's just a pure guess.
A little background- there are three plants in a row, this one is in the middle and the only one affected. Leaves with spots go from green to yellow in just a couple days. Very healthy and well fed before this with hardly any yellowing of leaves
Interesting take. Tell me, which bacterium causes concentric ‘ring-in-ring’ symptoms in leaf tissue? I’ve done extensive research in bacteria and I’ve never come across any bacteria that produces symptoms like that. I’d love to know what makes you so sure?
Bacterial blight grows in splotches not rings so it definitely not that. The rings indicate ring/leafspot it’s got a lot going on, usually when I see ring spots like this it’s on trees that have become hosts for many species of insects. It’s a combo of a deficiency from the insects and a fungal infection.
Update- I’ve ruled out almost all of these suggestions (thanks for the comments!) except for ringspot (which I can’t find too much on it) and septoria ( most images don’t match up to what I’m seeing exactly) I’ll treat it as septoria and remove the affected leaves and separate from the other plants. I’ll keep you all updated
It’s either Corynespora cassiicola or Alternaria linariae. It’s not septoria. It’s not bacteria. It may or may not be due to a cal/mag deficiency. There are too many factors at play for any of these goof balls on this thread to determine why your plant succumbed to this infection.
Slugs? Recently I've been having a problem with those sticky pests too. They tend to check my profile for yummy intel on me... but they don't even have a clue who I am.
Definitely some kind of fungus. Look at fungi that cause Septoria and Blight. Can produce similar looking spots in various colours (inc. grey, brown, black). Leaves go yellow with Septoria. All seems similar to me. So definitely a fungi.
Gotta be a fungus. Looks like macro deficiencies lead to your plant being susceptible to this fungus. N for sure by the light colored leaves, and phosphorus is the “immunity” nutrient (helps with defense signals, etc) so with the fungus and other signs, I think that’s deficient as well.
Too much N can end up causing root rot and yellowing leaves as well. Only had it happen once but I think it was the top that yellowed first. I needed to repot and freshen the soil/less. It came back well and also did not have those spots. So maybe a combo like you said.
Looks like light-burn from water droplets sitting on leaves. However, I am a newbie who has not grown outdoors. Pretty wild issue. Almost looks like you prodded the leaf with a hot rod and then plucked it
Looks like it could be a bacterial infection. It might be able to take hold due to those leaves being a bit unhealthy, looks like nitrogen deficiency. I would prune off any infected leaves and try to increase the nitrogen.
Some sort of virus. The only way to determine the virus is to send a leaf sample off to a lab. You can buy Agdia test strips for $200; I doubt that, or you can just watch your crop slowly succumb to the pathogen. Sorry bud.
i’m not entirely sure but i’d chop ALL infected parts of the plant and feed it. it stops infection and the plant will probably able to recover. don’t take this as a fact that it’ll work tho 🤣
It’s none of the above . It’s leaf Septoria not blight .. Cease is a good product . Or a microbial tea foliar .. You have to out compete the bad bacteria with the good microbials
Do the dying leaves develop spots as they go? Has it been excessively wet where you are?? Someone in my local homegrow group posted an article about something called leaf septoria that was doing something similar to my outdoor plants.
Sorry to hear about this issue, “growth-deterring leaf septoria. Fortunately, it’s pretty simple to identify. If your plant is infected, you’ll find yellow leaves with brown spots on the lower areas first.” Check this link, hope it helps you
The plant looks pretty healthy to be honest, probably just balancing her nutrients. Maybe taking magnesium or something out of its old leaves along with nitrogen which is making them yellow too.
This is the craziest looking problem I've seen on here
Same haha, I’ve seen a lot of different infections and issues but this is my first time seeing this.
It's blight. Common garden problem with veggies.
Right! 26 years growing and never seen this. My initial thought was it looks similar to ringworm on ppl, which is fungal.
Same. It needs to speak with researchers about it’s recent ufo encounter
Im just hear to learn. Cuz. Wtf
agreed.
The droplet pattern and the irregularity of it, combined with being alongside a chain link fence onto a green-looking-space leads me to wonder if something was sprayed and got on your plant.
Could be but wouldn’t they be more prevalent on top leaves? It’s working upward. Hints at something systemic, probably not rain or spray.
This is what my leaves look like if I spill some of my hydro nutes on them.
I was thinking maybe droplets magnifying and burning. Or reflections off something damaging them, are there any wild disco balls near by?
Lsd
Turns out acid rain is still a thing
Came here to say this ☝️
What
Wouldn’t it be especially prevalent on the tops of the plant? These look to be on the lower portion of the plants only
I think maybe you have ringspot?
Yeah that's crazy he has the tobacco ringspot disease? Looks just like it.
yup
It's either not enough nitrogen or too much nitrogen. Either way it's not getting the exact amount of nitrogen needed
Idk how to make a nice link here, but I found something called zonate spot disease/zonate leaf spot that looks much like this.
Nice researching! I think you are right. Perhaps it might even be that particular disease along with a nutrient deficiency. That would cover both the yellow leaf and that distinctive ring pattern of the leaf spot.
My first thought was a fungus, so this is probably what it is
Good find, you are a beast my friend.
To the top with you good sir!
Monkeypox? /s
Rarer in females
This looks like Septoria leaf spot. Looks like pruning the affected area is best course of action. And not propagate that plant any further.
I’ve never seen septoria cause spots like that on cannabis, but I always cut that shit back as soon as it looks diseased. Def seen it spot in other leaves (mostly grasses TBH which is weird)
I don't think it's septoria. The rings aren't right. Only thing I can think of is water droplet sun damage combined with a deficiency, but that's just a pure guess.
A little background- there are three plants in a row, this one is in the middle and the only one affected. Leaves with spots go from green to yellow in just a couple days. Very healthy and well fed before this with hardly any yellowing of leaves
https://www.google.com/url?sa=t&source=web&rct=j&url=https://plantpathology.ca.uky.edu/files/ppfs-ag-h-01.pdf&ved=2ahUKEwibgOCn7e_5AhVP9jgGHaQiA084ChAWegQIBRAB&usg=AOvVaw3dYJFbM_r-xFE90m0tFXW5
It’s bacterial leaf spot. If the circles were perfect, it would most likely be a fungus, but with the irregular edges I have to say it’s bacterial.
Aw yea we got a guy who knows da fungus 🤝🤝🤝🤝🤝
Interesting take. Tell me, which bacterium causes concentric ‘ring-in-ring’ symptoms in leaf tissue? I’ve done extensive research in bacteria and I’ve never come across any bacteria that produces symptoms like that. I’d love to know what makes you so sure?
Bacterial blight grows in splotches not rings so it definitely not that. The rings indicate ring/leafspot it’s got a lot going on, usually when I see ring spots like this it’s on trees that have become hosts for many species of insects. It’s a combo of a deficiency from the insects and a fungal infection.
Update- I’ve ruled out almost all of these suggestions (thanks for the comments!) except for ringspot (which I can’t find too much on it) and septoria ( most images don’t match up to what I’m seeing exactly) I’ll treat it as septoria and remove the affected leaves and separate from the other plants. I’ll keep you all updated
It's blight. Look it up.
Try posting to
It’s either Corynespora cassiicola or Alternaria linariae. It’s not septoria. It’s not bacteria. It may or may not be due to a cal/mag deficiency. There are too many factors at play for any of these goof balls on this thread to determine why your plant succumbed to this infection.
Fungal Leaf Spots?
This or lettuce chlorosis virus is all I can come up with.
It’s not Septoria.
Slugs? Recently I've been having a problem with those sticky pests too. They tend to check my profile for yummy intel on me... but they don't even have a clue who I am.
pardon me
Definitely some kind of fungus. Look at fungi that cause Septoria and Blight. Can produce similar looking spots in various colours (inc. grey, brown, black). Leaves go yellow with Septoria. All seems similar to me. So definitely a fungi.
Leaf septoria
That’s what I’m thinking 🧐
Gotta be a fungus. Looks like macro deficiencies lead to your plant being susceptible to this fungus. N for sure by the light colored leaves, and phosphorus is the “immunity” nutrient (helps with defense signals, etc) so with the fungus and other signs, I think that’s deficient as well.
Too much N can end up causing root rot and yellowing leaves as well. Only had it happen once but I think it was the top that yellowed first. I needed to repot and freshen the soil/less. It came back well and also did not have those spots. So maybe a combo like you said.
You using ocean forest? I think its turning into an octopus.
Maybe if the raindrop stayed on the leaf in the direct sun, and magnifying the burn? I know that’s a very long shot haha
Came here to say this exactly ive definitely heard of this happening
Crop circles
Herbpies
My favorite so far 😂
redandrolly
Good idea
This is some twilight zone shit. And I thought my led light burn symptoms were bad 🤦🏻
Possibly Phoma leaf spotting.
Ah shucks who doesn’t love a good mystery?
Looks like light-burn from water droplets sitting on leaves. However, I am a newbie who has not grown outdoors. Pretty wild issue. Almost looks like you prodded the leaf with a hot rod and then plucked it
Ringspot can affect a lot of plants, I read it affects philodendrons a lot.
That looks crazy. I've never seen that.
Never seen anything like that before 🤔
Looks like.something off a tie die tshirt
Ah mate you have crop circles. Usually caused by aliens but no one really knows, I'd start over.
Id remove all affected leaves and water with the max dose of neem. It has anti fungal properties. Might get you through
I need to worry about neem oil getting on the buds though, right?
Get an Oompa Loompa to diagnose it? 🤷♀️
Looks like it could be a bacterial infection. It might be able to take hold due to those leaves being a bit unhealthy, looks like nitrogen deficiency. I would prune off any infected leaves and try to increase the nitrogen.
Bacterial leaf spot maybe?
That is a pathogen. Looks like frog eye leaf spot to me
Have you been misting/watering, or has there Been mist on morning? Looks like some kind of Water drops that Evaporated away.
Judging from the comments, this needs scientific analysis lol.
Your plant is sick bro!
Looks a lot like Septoria leaf spot.
Looks like what happens when Tobacco gets black shank. Which is a fungal infection that results in full plant loss.
100% blight. Apply fungicide and remove affected leaves.
did you spill hidden valley ranch on the plant? that's a potential cause
LSD OG
Looks like Leaf Septoria to me.
Looks tie dyed. Must be an heirloom strain.
Oh man he really is watching
Not sure if it affects cannabis, but it looks an awful lot like early blight in tomatoes.
What the fuck?
I think that might be leaf septoria
Lens burns! are you watering it during the day?
Septoria . Fungal infection treat soil
Just needs to be fed
That looks viral, literally. but its probably a fungus and you need to nuke the space.
Looks like that coffee art lol. Interested to know the cause of this too, never seen that before.
Bruh in 12 years of growing I’ve NEVER seen no shit like this. Please burn this plant and don’t spread a new virus
Latte art?
Your plant ate some magic mushrooms
Some sort of virus. The only way to determine the virus is to send a leaf sample off to a lab. You can buy Agdia test strips for $200; I doubt that, or you can just watch your crop slowly succumb to the pathogen. Sorry bud.
Doctor here. Severe case of ringworm.
Chemtrail rail :o
Looks like tomato spotted wilt virus because of the concentric rings. But I have no idea if weed can get it. It’s not limited to just tomatoes though.
I had the EXACT same thing last year
Cal mag def
yup .. those are crop circles. better make yourself a tinfoil hat!
Monkey pox
Did you sweat on it? Or something concentrated spraying on it?
Nope. Pretty sure I’ve narrowed it down to fungi
Looks to me like a chemical got on them . Almost like droplets too
Your plant got herpes
Corynespora cassiicola or Alternaria linariae. I’d put my money on Alternaria.
Ring worms? Lol
I’m 80 percent sure this is a contact issue and not something systematic …. Acid… weed killer… somebody being hateful
It has the monkeypox /s
Must be aids
i’m not entirely sure but i’d chop ALL infected parts of the plant and feed it. it stops infection and the plant will probably able to recover. don’t take this as a fact that it’ll work tho 🤣
Mini UFOs?
Wow wtf
Monkey 🐒 pox
https://extension.usu.edu/vegetableguide/leafy-greens/phoma-leaf-spot
Chipmunk pox
Sharingan
It’s none of the above . It’s leaf Septoria not blight .. Cease is a good product . Or a microbial tea foliar .. You have to out compete the bad bacteria with the good microbials
Amazing, all these "I've been growing for years, followed by nothing helpful."
Deer ticks duh
hmmmmmm
this plant get straight out of the Uzumaki manga lol
Yes, Your plant has caught the Monkey Pox..
New cannabis borer, first case.
Leaf spot disease like septoria
I don't know but my issue is Trypophobia so this is fucking gross to me.
Those are usually formed from some kind of disease. Maybe overwatering has led to some kind of ring growth?
Did you splash nutrients on that leaf looks like water spots....only thing I can think of....my two cents
Do the dying leaves develop spots as they go? Has it been excessively wet where you are?? Someone in my local homegrow group posted an article about something called leaf septoria that was doing something similar to my outdoor plants.
Appears to be what is known in the trade as 'target fungus'. Kidding, I just made that up.
Crop circles = Aliens
Sorry to hear about this issue, “growth-deterring leaf septoria. Fortunately, it’s pretty simple to identify. If your plant is infected, you’ll find yellow leaves with brown spots on the lower areas first.” Check this link, hope it helps you
Alternaria or brown leaf spot. It’s fungal and will spread.
The plant looks pretty healthy to be honest, probably just balancing her nutrients. Maybe taking magnesium or something out of its old leaves along with nitrogen which is making them yellow too.
It’s so pretty… the spirals
Chlorasyphillis
Crop circles
it seems circular patches are being sent to other timelines, maybe
Water droplet burn
Yeah I’ve had the same issue. Are you growing in Colorado?
No clue about the dots but the yellowing starting from the bottom is nitrogen deficiency
There are many many reasons a lead goes yellow.
Maybe several issues, not a solitary one?
These are the craziest looking leaf deficiencies I’ve ever seen
Possible LCV (lettuce chlorosis virus). All I got, sorry.
Are you watering during the day by chance? Those spots look like sun burn from water droplets.
Kill and burn it.
Deficiency?
Phosphorus. If ph Iis good etc. Just me though.
Might be septoria but I honestly cannot say for certain at all, I’ve never seen this in person 😬
Calcium deficiency
Look up “owl eye syndrome.”
monkeypox
Monkey pox for sure! Sorry man.
Someone made coffee on your leaves
Monkey pox.
Canna pox
CannaPox
Monkey pox fer sure
Monkeypox
Monkeypox
Monkeypox