Curly leaves on my plum
I do hope someone can help with this. I know peaches, nectarines and that family have leaf curl, but why is my plum also suffering a similar fate. It's a minarette, been in the garden for 2 years - this is its 3rd fruiting season. Actually, we only had 2 plums last year but this year the blossom has been really good and we were expecting our first 'real' crop. However, now the leaves are curling, starting at the top. I have examined most of the tree and can find nothing behind any of the leaves - insects, mould, 'fur' - and those leaves that have not yet succumbed appear to be in rude health (but will they remain that way?). The soil is amended (organically) clay. There is a 'heritage hedge' directly behind the tree, mainly hawthorn, healthy ash, elder, hornbeam and the tree is sheltered from the north by a garden shed. It loses sunshine by about 2 p.m. (because of same 'hedge') but still gets plenty of light. Any ideas please?