Jims garden wrote:
Brown patches appearing in well established Leylandii hedges. They are
watered regularly during dry spells but the dead areas still appear.
Any advice much appreciated.
ps The hedges are staying put. They are doing an excellent job
screening various parts of the garden.

That happems when you inject Sodium Chlorate into the trunk. You wouldn't
happen to have a neighbour who is not so keen on having his garden
excellently screened would you?

Martin