Hi there, I found this strange discolouration on a leaf one day, then it spread to another. At the moment its effecting about ten leaves, old and new doesn't seem to make a difference. It has also spread to another plant. What is it?
(top of effected leaf)
(underside of effected leaf, looks normal)
leaf2.jpg 148.31K 6 downloads
Edited by Christoff, 22 February 2021 - 01:25 AM.