'Steve',

It may be leaf scorch damage as described in these sites, although the
damage to your plants is not very similar at all to the images which are
shown.

Check for aphids on the underside of the leaves. Mine are often covered
with them at about this time of the year.

http://www.rhs.org.uk/advice/profile...cer_scorch.asp

http://muextension.missouri.edu/xplo...ort/g06881.htm

Regards,
Emrys Davies.





"shazzbat" wrote in message
...
My acer is looking distinctly poorly. It looks as if the leaves are
being
tunnelled, and some are curling up and turning brown. I've put a
couple of
photo here -

http://ourallotment.mysite.freeserve.com/page8.html


Any ideas what's wrong, and what if anything I can do about it?
Any advice appreciated.

Steve