I have four 3ish week old white rhino from ghs, noticed this the other day. rest of the plant is growing ok? Whats wrong...

Thank You

Not necessarily systemic - just nip it off.

What size pots are they in ?

Could be water that has got on the leaf when you last watered it and the HPS has burned the leaf like a magnifine glass does

I fear infection, it's not the only leaf showing signs. I don't think it's water damage as i am very careful about that. They have just been potted up into 11ltr pots.

This is from the other side of the plant, same level....

Thanks for the replies.

This is from one of the other plants...

That bleaching does look a bit ominous - I had that with LSF .. my two best grows though ... never managed to stop it - though I used Citrofresh to try to keep the spores under control - water would probably have done just as well ...

Low temperatures can have similar effects though ...

Pots look a bit big too ...

yeah after the other photos I wud say it wasnt water right enough. Pitty as the water one wud have been easier to sort out. best of luck

So are we edging toward LSF?

This could be the xmas smoke about to go up in in smoke?.....

youve just potted up so im taking it the plants are reasonably big now and the leaves in question are at the bottom and not getting much light?

im a coco grower so maybe not so relevant to you but i get leaves like that all the time once the plants get a bit o size on, i just cut the feckers off(always trim the bottom of me plants before i go into flower anywhos), theyre spent once they get like that imo

I like it . Yes the affected leaves are now in a bit of shade.

ETA: bugger, 100th post and it's about a problem!