How to stop Kikuyu grass invading my Couch lawn
I have a relatively new couch lawn (about 9 months old), the trouble I have is that Kikuyu grass is slowly invading the lawn and taking over.
I spoke to the man at the local nursery who told me that since Kikuyu is a type of lawn then most of the lawn weed killers will not kill the Kikuyu (because it's a grass not a lawn).
I've tried to remove it by hand, but it's quite a large lawn and it's always beats me (ie it grows faster than I can pull it out).
The other option I have read about is to mow it very low and it will die. Trouble is that this will definitely kill my couch lawn too, which is more delicate than the Kikuyu. And I know from experience it burns badly if cut too low.
Does anyone have any ideas? Ideally I'm after a spray I can use that will kill broadleaf grass like Kikuyu but not kill the couch. I have seen a product advertised in the US called "Turflon Ester" but I'm unsure if it is ok to use on Couch and also unsure about where/if I can get it in Aus.
Thanks in advance for any suggestions!!