I find that using weed killer on some unwanted grass is usually the easiest way to stop grass roots. Is there any recommended brands to look out for when doing so?

The only one I find which actually kills the whole lot including roots is Roundup. I`ve used other proprietory brands but the weeds always seem to return much faster than they do with Roundup. It`s one of the more expensive products, but I think it has extra value and is worth it.

http://www.roundup.com/