Hi does anyone know what is wrong with my Horse Chestnut tree? I've
made a little web site with some photos, which you can see here,

http://freespace.virgin.net/fast.signs/tree.html

The symptoms are;
1) Generally sickly looking leaves that are yellowing and curling.
2) Reduced number and size of leaves at the top.
3) Splits appearing in the bark, there is one that you can see in the
photos that I could stick my fingers into.

Any help gratefully received.

James