Question What have I got going on?

JL2G

JL2G

Jesse Loves 2 Grow
Staff member
Moderator
Q-36 Space Modulator
This spotting has come about and I'm not sure the cause atm.
It's happening on a couple of plants.
All organic rols.
Haven't checked the soil ph yet, but watering is always set to about 6.2 or close to there.
20200514_130105.jpg
Primarily in the Altar Bread strain. 2.5 weeks into flower atm.
20200514_130115.jpg
Thinking it's molybdenum being locked out, but not sure yet. Leaning towards the micro nute side of things being my issue.
Top dressed them a week or two ago with with some fresh mix. Bone meal, chicken poo, alfalfa meal, and seaweed.
It's the same mix all my other plants have gotten.
Hmmmm.......
Tell me your thoughts O' World of Cannabis lovers. Lol.
 
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JL2G

JL2G

Jesse Loves 2 Grow
Staff member
Moderator
Q-36 Space Modulator
Smokieokie said:
Wait, you said it got worse after you applied cal-mag. Do you add very much lime to your mix? If so I think deebs is right about it could be a lockout. Told ya I'm wrong alot lol. I suggest a ph slurry test when you get home and get back to us lmao.
Click to expand...
The progression of worseness, lol, did not seem affected by the cal mag. Not meaning the cal mag made it worse. It just had no effect I noticed. Progression of bad leaves did not change or slack off. Lol.
And yes, a slurry test is in order. Lol
 
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D

Drynobbob

In Bloom
I get my cheap led too close, I get some leaves like that occasionally. I tend to lean toward the hidden potassium/nitrogen thingie mentioned above, my bloom booster has a big number pk, and I cut back on reg food with n in it, I might get a lower leaf like that, never more than one or two.
 
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Deebs

Deebs

The Sentient Naturewalker
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Administrator
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Deebs said:
I thought it was a bright yellow halo ..i could very well be too lit.. lol
Click to expand...
Cause this was bugging me I did a quick search, I did see mention of a yellow halo...so maybe I haven't went totally nuts yet ..lol

entoweb.okstate.edu

Septoria Leaf Spot - Oklahoma State University

A page dedicated to understanding Septoria Leaf Spot and their hosts, symptoms and control properties.
entoweb.okstate.edu entoweb.okstate.edu
 
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JL2G

JL2G

Jesse Loves 2 Grow
Staff member
Moderator
Q-36 Space Modulator
Got some distilled water for testing. ?
I missed lights on time for the soil pull. ?

They are front and center of the doorway.
I do work good by Braille.
I think I can make this happen blind working.
What's the worst that could happen?

Hmmmm............another question thread topic?
???
 
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DopeDaniel

DopeDaniel

Taste The Spectrum
IPM Forum Moderator
Lockout, but I think manganese defeciency is what is causing the spots. ROLS w/ carbonate water and excess phosphoric acid. Cant remember wich shells have manganese oyster? Langbenite? What do you use that has manganese @JL2G ? Then the excess P, more than 3 recycles? TBH the only time I halfway recovered from a situation like this in my rols it required leaching the soil. You know how pots nest together? I hooked a shopvac to the bottom of one, nested the problem child in it and flushed the hell out of it and fed megacrop the rest of the way.
 
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Deebs

Deebs

The Sentient Naturewalker
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SSGrower said:
Lockout, but I think manganese defeciency is what is causing the spots. ROLS w/ carbonate water and excess phosphoric acid. Cant remember wich shells have manganese oyster? Langbenite? What do you use that has manganese @JL2G ? Then the excess P, more than 3 recycles? TBH the only time I halfway recovered from a situation like this in my rols it required leaching the soil. You know how pots nest together? I hooked a shopvac to the bottom of one, nested the problem child in it and flushed the hell out of it and fed megacrop the rest of the way.
Click to expand...
I think SSGrower is on to something here maybe...
 
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NotAquaMan

NotAquaMan

In Bloom
JL2G said:
The progression of worseness, lol, did not seem affected by the cal mag. Not meaning the cal mag made it worse. It just had no effect I noticed. Progression of bad leaves did not change or slack off. Lol.
And yes, a slurry test is in order. Lol
Click to expand...
The cal mag shouldn't make it worse most are calcium and magnesium nitrate and that will actually lower pH a tiny bit.

But if the soil pH is high like suspected the extra free calcium may bind with P locking the P out also
 
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JL2G

JL2G

Jesse Loves 2 Grow
Staff member
Moderator
Q-36 Space Modulator
Yes, the cal mag I use is cal nitrate.

Didn't get it posted up last night, but I did get it done. Lol.
Some interesting finds for sure.

Snuck into the flower room in the pitch black and took soil samples blind from a few spots.
That was interesting. Lmfao.
Don't realize how much ones equilibrium is associated with sight til it's gone. Lol.

Slurry tests came back at 6.5 pH on the soil, right where I was expecting it to be. ???
Double verified the samples with litmus strips, also reading the same.
Did an npk test of the samples too, simple kit at the garden center. Works like the litmus strips and changes colors accordingly.

N- shows to be about what they term as medium healthy levels.
P- shows low levels color range.
K- shows high levels of the color range.

Kind of points an arrow for me if one looks at the evidence.
I think I have a combo of shit happening.
What do y'all think of this now?
Some/all of y'all were thinking along these lines.

High K locking out micros? = micro defs
Low P from high Ca bonding to it? = P & Ca defs

More evidence, where does the jury stand now? Lol
 
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NotAquaMan

NotAquaMan

In Bloom
JL2G said:
Yes, the cal mag I use is cal nitrate.

Didn't get it posted up last night, but I did get it done. Lol.
Some interesting finds for sure.

Snuck into the flower room in the pitch black and took soil samples blind from a few spots.
That was interesting. Lmfao.
Don't realize how much ones equilibrium is associated with sight til it's gone. Lol.

Slurry tests came back at 6.5 pH on the soil, right where I was expecting it to be. ???
Double verified the samples with litmus strips, also reading the same.
Did an npk test of the samples too, simple kit at the garden center. Works like the litmus strips and changes colors accordingly.

N- shows to be about what they term as medium healthy levels.
P- shows low levels color range.
K- shows high levels of the color range.

Kind of points an arrow for me if one looks at the evidence.
I think I have a combo of shit happening.
What do y'all think of this now?
Some/all of y'all were thinking along these lines.

High K locking out micros? = micro defs
Low P from high Ca bonding to it? = P & Ca defs

More evidence, where does the jury stand now? Lol
Click to expand...
Personally I think it's hard to get a good slurry on pots with plants. Run off is i feel more accurate for your situation because you get the root zone too not just the topsoil.

But given light to the new info...High K can suppresses P, Ca, N, Mg and B availability. I would lean to this being the culprit with the symptoms you are seeing.

A flush with enzymes or something like recharge may help reset the balance. Followed by a light feed after.
 
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