How to Kill Moody Grass

Water the area where the bermuda grass is growing about a day or two before you plan to treat it. Herbicides are most effective if applied to actively growing, healthy plants that are not under drought stress.

Spray bermuda grass not located near desirable vegetation with a non-selective herbicide, such as glyphosate, thoroughly so that the foliage of unwanted plants is completely covered, but not to the point of runoff. You can also use a selective herbicide for grass control like sethoxydim or fluazifop to control bermuda grass in plantings of desirable broadleaf species. In turf, spray an herbicide labeled to control bermuda grass growing in the specific turf species you have.

Repeat application of the post-emergent herbicide after about 10 days if bermuda grass remains green or new growth emerges.

Apply a pre-emergent herbicide, such as dithiopyr, to turf areas you treated with a post-emergent herbicide to control bermuda grass seeds that are present in the soil before they germinate.

Spread a thin layer of an organic material mulch like wood chips or shredded leaves over the ground in flowerbeds or other non-turf areas you have previously treated with herbicide. This will help to prevent bermuda grass seed germination and seedling growth.

Monitor treated areas, inspecting them regularly for at least two to three years. Pull up any young plants before they can become established, removing as much of each plant's root system as possible, or spray them with herbicide.