Lower leaf spots

[SoaringHi]

I don't know what the problem is with these lower fans, they will spot up over night and typically be limp and hanging dead over the course of a couple of days. The plant is really healthy at about 50 days into flowering. Growing in Coco and fed with Canna A+B. I was adding a low dosage of PK13/14 up until a couple of weeks ago. I'm positive this isn't over ferting, possibly PH or some type of disease?

Here is a shot of the plant: Female seeds Neville's Haze Hybrid. The 3 rusty spots on the leaf towards the bottom are from physical damage, was moving her around some.




And the leaves in question, this is how I find them in the morning, typically they wont last 2 more days before hanging limp and looking grey and/or dryish brown colored.












Any ideas, thanks for any input.

 

[SoaringHi]

Hit her with a little bit more (N) and she will be back to green and beautiful

GrowDoc

She is green and beautiful, which is why it seems strange that the lower fans are spotting up and dying within a couple of days. There isn't one yellow or even yellowish leaf on the whole plant. When they go, they get those brownish/greyish spots until it consumes the whole leaf and it is hanging dead. At least the tops are good for now, which is all that matters in the end.

 

[SoaringHi]

At this point I'm thrilled to say that I can't provide any pictures of leaves in bad shape on my girl. The last leaves that spotted up have remained in good condition and are still turgid and free of death. I decided to up the acidity on my feedings with white vinegar and I also added some Rhizotonic to the mix. So far so good, no new spots!

 

[Weedninja]

Its kind of hard to tell from your pics, but it looks like it might either be a P deficiency or maybe even a virus. There are threads in this forum with pics of viruses if you want to compare and contrast.

 

[Weedninja]

It could also be pH.

 

[Rosy Cheeks]

Whatever that is, it's marginal, and your plant seems to be in great shape.

If you had an overfert or ph problem, you would start seeing other problems already.

Lower fan leaves pretty much have served their purpose at this stage in the plant's life, and often the plant disposes of them. They go yellow, or crumple up and die.

Do you water by hand? Do you splash some nutrient solution on the lower leaves every now and then?

 

[SoaringHi]

If you had an overfert or ph problem, you would start seeing other problems already.

Lower fan leaves pretty much have served their purpose at this stage in the plant's life, and often the plant disposes of them. They go yellow, or crumple up and die.

Do you water by hand? Do you splash some nutrient solution on the lower leaves every now and then?

Both situtations seem likely, yet I can't explain how I got water to splash about 1 foot above the rootzone, it could happen though. I have decided to be more carfeull about my hand watering though. The only problem i see now is there are still a few spots popping up, the growth seems to have stalled. It's at the point where i know she isn't stretching anymore but I'm not seeing buds really swelling up much either. Time will tell.

 

[highallthetime]

What is your humidity ? " This time of year. Some time's they turn colors all over.

If in doughty try..
Marijuana Garden Saver: AKA The Complete guide to Sick Plants,pH, and Pest troubles -- By MynameStitch aka Dr. Doolittle

 

[SoaringHi]

Right now it is at 60%. It was up to 70% the last couple of days. I'm on the verge of getting a dehumidifier if I can't get closer to 50%.

 

[highallthetime]

Look's Great...

Look's Great...

Could have been a ph drop for a instant. Hope all works out.

 

[mexilandrace]

you got something on some leaves in my opinion, I had the exact same thing happen and it was little hunks of peat moss under the leaves.

looked identical to that