"KK" wrote
No - this has nothing to do with illegal substances - but with patches of
'bad' grass in my lawn - coarse ugly stuff, bright green & grows very
quickly.

Do I have to dig it out ?

Yes.

All advice welcomed - thanks

Get yourself a turf or two from a GC and then place a turf over the course
grass and cut round it and slice out the bad grass about a turf thick, the
turf will then fall into the gap nice and tight, you won't notice the join
within a couple of weeks.

--
Regards
Bob Hobden
17mls W. of London.UK