Camellia-Curly leaves & brown spots/edges
I am very new to gardening but I am trying to learn. I have planted 9 camellias along a fence (2years ago)-some get dappled sun and approx 6 get full sun. Two in the centre (Full sun) are Jennifer Susan and Hiryu. They both have sparse leaves. The leaves are also curling up and have small and large brown spots and sort of burnt looking edges. I can't see any bugs but there does seem to be some small black ants around them. What can I do to help them? And is it the ants or maybe something else? Any help and advice would be appreciated.