In article ,
says...
On Wed, 8 Jul 2009 10:02:31 +0100, Charlie Pridham
wrote:

In article ,
says...
Try looking up Fireblight and see if that fits your symptoms

it's not that, I'm glad to say, though I'm fairly sure it is also a
bacterial infection. Do you have any other ideas?

And, if I wanted to feed the trees to encourage the new growth, what
would be best to use, do you know?

Several ofthe downey mildews will cause similar symptoms, try sending
samples to the RHS
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea