 It takes a little while for it to completely kill out Bermuda grass and may take a second application, but it is effective. So use something like Grass Be Gone. Over the Top is a Fertilone product. And then there's Post and Ornamac and a host of other products that have the same active ingredient. They only are going to kill grasses. And it's safe to use in monkey grass or Liriope because those are not in the grass family. Those actually are in the lily family.