Kikuyu Grass and Buffalo Grass War

 Hello,

My front nature strips are fairly large - originally the lawn had buffalo
grass - but the previous tenant I rented the place out to - decided to cut
long strips of the grass away for his own home. Fat bastard who works for
Amway as a big leader.

There were big patches and I unwisely decided to take some overgrown council
kikuyu grass and transplanted them on the bare patches.

That was about 10 years ago. I've since realized the error of doing that.

The kikuyu and buffalo are now fighting for control. How can I assist the
Buffalo in winning?

 YMC wrote:

You cannot do it other than sterilise the whole lot and start again.

David