Please help identify this problem

raindog

raindog

Member
Hi all! Here is a pic of a cola leaf from one of my girls 6 weeks into flower.
Other leaves are normal as is bud development. I gave an extra dose of Cal/mag and the yellowing as stopped but no change to the already affected leaves.
I'm following the House and Garden schedule but there is a chance I had a nute lock out when my ph probe stopped working (I have a another now).

Hmmm.. the tops of the affected colas are also turning bright white with packed pistols. Not like the other plants or colas on the same plant.

I have looked around and Potassium or a Magnesium deficiency is my best guess.

Any clues my friends? Thanks!
 

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lime73

lime73

Weed Modifier
raindog said:
Hi all! Here is a pic of a cola leaf from one of my girls 6 weeks into flower.
Other leaves are normal as is bud development. I gave an extra dose of Cal/mag and the yellowing as stopped but no change to the already affected leaves.
I'm following the House and Garden schedule but there is a chance I had a nute lock out when my ph probe stopped working (I have a another now).

Hmmm.. the tops of the affected colas are also turning bright white with packed pistols. Not like the other plants or colas on the same plant.

I have looked around and Potassium of a Magnesium deficiency is my best guess.

Any clues my friends? Thanks!
Click to expand...
K def.... are you in soil or hydro?

What nutrients you use and amts?
 
raindog

raindog

Member
Hey thanks! Details: Coco/perlite in 3 gal smart pots watered with flood and drain. House and Garden aqua with HG additives. Normal schedule for my guess of 9 weeks flower. 3 Jack Flash from seed all showing different phenos. The Sativa version is most affected but this plant is closet to the center so I was thinking maybe too much light intensity?? Light is 600W and totally cooled, 14 inches from the canopy top.. Oh doing a scrog so the colas are almost the same height.. yet from seed it's actually a cluster F - everything is otherwise looking like i hope it would. I'm looking for a Mother but scroging it.

Thanks!
 
lime73

lime73

Weed Modifier
raindog said:
Hey thanks! Details: Coco/perlite in 3 gal smart pots watered with flood and drain. House and Garden aqua with HG additives. Normal schedule for my guess of 9 weeks flower. 3 Jack Flash from seed all showing different phenos. The Sativa version is most affected but this plant is closet to the center so I was thinking maybe too much light intensity?? Light is 600W and totally cooled, 14 inches from the canopy top.. Oh doing a scrog so the colas are almost the same height.. yet from seed it's actually a cluster F - everything is otherwise looking like i hope it would. I'm looking for a Mother but scroging it.

Thanks!
Click to expand...
From the pic....looks like "K" deficiency to me

you should post a pic of the whole plant/plants effected
 
pooper

pooper

Well-Known Member
Just flush and then feed lightly for a week then resume your feding program ... also flush with 1/2 strength cal mag
 
raindog

raindog

Member
lime73 said:
From the pic....looks like "K" deficiency to me

you should post a pic of the whole plant/plants effected
Click to expand...
Hard to shoot the whole plant because the branches are going everywhere. Lime if I can ask you what makes this K and not Mg? If it is K, and I'm not doubting you just trying to understand better, would a nute lock out do this? If the nutes got absurd in Ph it would have been perhaps 6.7 at the most. I trust HG far more than I trust my own plants nute Ph. Thanks.
 
Hydrotech364

Hydrotech364

Well-Known Member
Want kind of PH Bro,PPM?Looks like nutrient lockout.I have experienced it a few times because I am a heavy feeder with some of my ladies and shit gets mislabeled every now and then.I once had a plant in a single bubbler(Old School) That plant turned completely white.Sorta pinkish too.Changed the nutes and the green bled back into her beautifully she harvested out great.I dont think there was any tissue damage.If you cant check the PPM or PH then a rule of thumb is to Flush the fuck out of the plant if she is in mix/soil Keep her on plain water 1/2 tsp a gal for two or more days,then refeed.If she's in a Hyd/Aero you should have the meters to go with the system.@ least a PH kit.Good luck bro.
 
raindog

raindog

Member
pooper said:
Just flush and then feed lightly for a week then resume your feding program ... also flush with 1/2 strength cal mag
Click to expand...
OK. I do regular flushes at res change and have done 3 since the yellowing began. I did add extra Cal/mag (I was already adding but at 1/2 strength). Are you thinking it's K or Mg? or a recipie for general sucess:)
 
lime73

lime73

Weed Modifier
raindog said:
Hard to shoot the whole plant because the branches are going everywhere. Lime if I can ask you what makes this K and not Mg? If it is K, and I'm not doubting you just trying to understand better, would a nute lock out do this? If the nutes got absurd in Ph it would have been perhaps 6.7 at the most. I trust HG far more than I trust my own plants nute Ph. Thanks.
Click to expand...
N-p-k three main nutrients your looks like this.View attachment 1895270

yes nute lockout can make it look like a deficiency...thats exactly what a lock out is ...oh it is very important for nutrient uptakeView attachment 1895271
 
Hydrotech364

Hydrotech364

Well-Known Member
If you notice the tissues of the plant in the 1st pic you can see that besides the discoloring they look relatively healthy.1st sign of Lockout.Guess we'll wait and see.Tre comparing those species is like apples and oranges.Good know how.Props.Marijuana is a completely different animal if you will.She was bred in mountainous regions which is evident by the shape of the leaves.History also of course but the plant itself is very resiliant(sic) and can live on little,but she can be burned/Locked out fast.Just as a fast test I would flush her and ph a light balanced food after a couple of days.More food can kill her and I have been doing this forever man.I would put a prized clone on it.My babies are expensive too.
 
lime73

lime73

Weed Modifier
There is a definite lock out! ....and needs to be flushed and fed with half strength nutrients/properly ph'd of course.

Which hydrotech stated as well!
 
raindog

raindog

Member
lime73 said:
N-p-k three main nutrients your looks like this.View attachment 1895270

yes nute lockout can make it look like a deficiency...thats exactly what a lock out is ...oh it is very important for nutrient uptakeView attachment 1895271
Click to expand...
Awesome! Thanks! I needed that nute lock out table. Yes i see K is locked out above 6.1 and I am sure my nutes were above this several times when my probe was absent ( I gustimated ). I have a blue lab combo meter and let the PH probe go dry.. one frighing night. Also this problem happened in early flower when the K is first really needed. Problem didn't get worse when I got my PH right and K affected leaves never go back to green right? Of course this is the problem. And the green on this plant was ginormous (as was the yellow in the yellow).

I'm not going to do do more flushes at this point because I believe the problem is not still there. And I'm in week 7 and don't want my plants losing out on one drop of proper nutes. Funny that the K deficiency/lockout hit one plant hard and the others minorly. Guess this plant is more sensitive?? Here's a shot of an indica leaning bud (at 6 weeks).. no worry with this indica girl...but I really want the sativa pheno. I have made clones of all and will wait till harvest to decide on the right Mother. Thanks Lime and others here.
 
lime73

lime73

Weed Modifier
raindog said:
Awesome! Thanks! I needed that nute lock out table. Yes i see K is locked out above 6.1 and I am sure my nutes were above this several times when my probe was absent ( I gustimated ). I have a blue lab combo meter and let the PH probe go dry.. one frighing night. Also this problem happened in early flower when the K is first really needed. Problem didn't get worse when I got my PH right and K affected leaves never go back to green right? Of course this is the problem. And the green on this plant was ginormous (as was the yellow in the yellow).

I'm not going to do do more flushes at this point because I believe the problem is not still there. And I'm in week 7 and don't want my plants losing out on one drop of proper nutes. Funny that the K deficiency/lockout hit one plant hard and the others minorly. Guess this plant is more sensitive?? Here's a shot of an indica leaning bud (at 6 weeks).. no worry with this indica girl...but I really want the sativa pheno. I have made clones of all and will wait till harvest to decide on the right Mother. Thanks Lime and others here.
Click to expand...

Your thinking now :clap:...which is awesome to see someone who actually is researching info given +rep to you...and , hey give those guys +rep...I did for helping you.:bigjoint:
 
Hydrotech364

Hydrotech364

Well-Known Member
raindog said:
Awesome! Thanks! I needed that nute lock out table. Yes i see K is locked out above 6.1 and I am sure my nutes were above this several times when my probe was absent ( I gustimated ). I have a blue lab combo meter and let the PH probe go dry.. one frighing night. Also this problem happened in early flower when the K is first really needed. Problem didn't get worse when I got my PH right and K affected leaves never go back to green right? Of course this is the problem. And the green on this plant was ginormous (as was the yellow in the yellow).

I'm not going to do do more flushes at this point because I believe the problem is not still there. And I'm in week 7 and don't want my plants losing out on one drop of proper nutes. Funny that the K deficiency/lockout hit one plant hard and the others minorly. Guess this plant is more sensitive?? Here's a shot of an indica leaning bud (at 6 weeks).. no worry with this indica girl...but I really want the sativa pheno. I have made clones of all and will wait till harvest to decide on the right Mother. Thanks Lime and others here.
Click to expand...
I gave up on those tall ass Sativa's after two Helicopters @ two different times landed.Neither one was quick enough though.I live in a jungle and there are no landing pads in my Local.Fuckers.+ My Babies are frosty by week two of flower.Potent ass Shoreline.
 
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