On Mon, 20 Apr 2009 01:12:20 +1000, YMC wrote:

The extremely hot weather - 47C - was also probably a contributing
factor - that kikuyu grass had been in that lawn for over 10 years now
and had grown very deep into the ground. Maybe over a metre deep.

Now all dead Thank God.

The hot weather was probably THE factor as it may have brought all the
deep roots into play providing water and thus giving strong circulation
to get the poison down deep.

OTOH, I've seen other species come back year after year from deeper roots
each time mutter

Hope your wish is granted.