08/07/2026
HOW TO CONTROL CRAB GRASS IN YOUR LAWN.
Crab grass is one of the most common weeds around. What makes crab grass a challenge to control is killing the crab grass without injuring the lawn. Herbicides generally work in one of two ways. Either they kill grass and not broad leaf plants, or they kill broad leaf plants and not grass.
Only a few select herbicides will kill certain types of grass and leave other types of grass un-injured.
Consequently, killing crabgrass within your lawn without injuring it requires carefully selecting the right herbicide.
The herbicide, Drive, will kill crab grass without injuring Bermuda or zoysia. The herbicide Grass Getter will kill crab grass without injuring centipede. There are no herbicides available that will kill crab grass without injuring St. Augustine.
An effective way to prevent crab grass is to apply a pre-emergent herbicide in February. Although a pre-emergent herbicide application may not prevent all crab grass, it will significantly reduce it.
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