leaf spot on Marigolds?
I got some blackish spots which are brown in the middle on the top side of the leaves on my African marigolds ( french ones look OK ). i just need a bit of help identifying the problem please.
Stupidly i convinced myself it would not freeze last night so left most of my plants in the greenhouse with horticultural fleece over the top of them, so you probably already guess it froze i was not impressed,
Some pic here, not the best though but you can just make it out.