What could this be?

[FOXBIRD]

just this leave did this. Thats crazy!
Should i just clip it?

[msactech1]

I'm not sure what caused it. If nobody else responds, I'd clip it incase it's fungus or some other disease. If I remember correctly, if 80% of a leaf is damaged it should be removed. Good luck, man.

[Garden Knowm]

what are we looking at...
the discoloration...

?

I wouild not clip... unless it is fungus... like MSACTECH said...

the plant looks very vigorous in growth and just looks like it is having a PH issue.. ...

[whisky]

are we looking at dead leaves? i dont understand. when leaves die clip them off and throw away