How to Kill Kikuyu Grass in the Garden

Overview

Kikuyu grass is a perennial grassy weed that can easily invade lawns, gardens and other areas. It can be difficult to control, but fortunately, does grow less if pre-emergent herbicides are applied in the early spring before new growth begins. After it begins to grow though, you must apply a post-emergent herbicide to effectively kill kikuyu grass. Along with some manual pulling and several applications, you may be able to get rid of your kikuyu grass all together.

Step 1

Pull up kikuyu grass. This is easiest when the grass is young in the spring and the ground is slightly moist. Get the roots and all parts of the grass and discard.

Step 2

Put on long pants, long-sleeve shirt, gloves and goggles. Plan to apply an herbicide on a calm day with as little wind as possible. Keep children, pets and other animals indoors.

Step 3

Spray a non-selective herbicide, such as glyphosate, on patches of isolated kikuyu grass. Note that this will kill all other vegetation, including desired plants and grasses, so only spray directly on the kikuyu grass blades and at a rate stated on the label. Expect it die within two weeks and reapply as necessary.

Step 4

Apply a post-emergent selective herbicide on kikuyu grass that is growing among desired grasses and plants. It may take three or four applications, four to six weeks apart, to effectively work. Use an emergent herbicide labeled to kill kikuyu grass. According to the University of California, MSMA and triclopyr combined together work best. Again, adhere to the recommended application rates on the label.

Things You'll Need

  • Protective clothing
  • Goggles
  • Post-emergent herbicide

References

  • University of California: Kikuyugrass
  • The Scotts Miracle-Gro Company: Kikuyu Grass
Keywords: kill kikuyu grass, control kikuyu grass, manage kikuyu grass

About this Author

Melissa Lewis has been a professional writer since 2005. Her work has appeared in various online publications. A former elementary classroom teacher and media specialist, Lewis is also a script writer, with a movie script, "Homecoming," she co-wrote currently in production. She holds a Bachelor of Arts in psychology.