I have a plant with lovely flowers which full off this time of year but the leaf`s are black with a sootlike substance when you bend the leaf back it peels off leaving the leaf shiny
You don't say which plant or if it is inside our outside
Sound though like sooty mould
does that help?
BRian, I think the cause is aphids. Prob from last year. Is it a camelia, skimmia or similar? I had this too a couple of years back. I washed off the black mould as much as possible...even pruning where applicable....and then sprayed with light dilution of fairy liquid. Did this a couple more times during the summer and autumn. Then once in spring. Bushes are fine now. Oh! good feed too will help