"Bill Grey"wrote
A friend of mine is experiencing problems with her Rhododendrons. She
says it flowered very well, but now the leaves are dying and falling off
and the branches have a sort of grey coating. I haven't seen the bush so
I can't eleborate on the grey coating - maybe it is a sort of dusty
coating.

Any ideas about the problem please?

Could be "Sudden Oak Death" Phytophthora ramorum which actually infects
Rhodos etc and whilst it seldom kills them it does make them lose their
leaves, normally the oldest ones.

http://apps.rhs.org.uk/advicesearch/...e.aspx?pid=329

Didn't realise it was still a notifiable disease.
--
Regards
Bob Hobden
W.of London. UK