huh. I have been doing some research on a local (NW Queensland) river couch - I am gradually digging out the buffalo grass clumps that have overrun the gardens here over the last ten years. It is hot and dry here and the summer months the temperature can hit 0ver 45 celsius on a regular basis. We have two local couch grasses.

I would not be surprised If you find several contributors. grass is extremely interesting. Luckily I live on the Leichhardt river and although we have a hot dry climate. I have no problems with water sprinklers for my lawns.

The main problem here is during the wet season the ground gets saturated for many weeks in hot weather and the lawn is plagued by deeper rooted weeds, and of course the local bindies.

drop me a message where your forum will be (or is) is. I am interested in grass specific weed killers. I basically use a broad leaf killer but I am interested in something that will kill the buffalo and other local grasses, terpentine, etc but be harmless to the couch.

I have a lot of grass, I devote an hour a day to it.

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