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Some of the particular herbicides that work best to get rid of nut grass without killing the grass include Halosulfuron-methyl, mesotrione, sulfentrazone, and metsulfuron. A herbicide like glyphosate would kill nutgrass, but it will kill nearby plants, too.

Lime isn't a fertilizer. Instead, it helps fertilizers, plant food, and naturally occurring nutrients reach the grass by boosting the pH level in acidic soils. While adding lime isn't a crucial task in some locations, it's vital to keeping a lawn healthy in many areas. Lime's ability to encourage healthy grass by making nutrients in the soil more effective makes the task worth the effort, regardless of location.

A spot herbicide for weed control is effective at killing crabgrass and not grass, but it depends on the type of herbicide. Always check the label to ensure that your herbicide is safe for grass but tough on crabgrass. Overall, spot treatment is ideal because it puts fewer herbicides into the soil, which can damage the soil. If you’re wanting a natural remedy to crabgrass that also won’t harm surrounding grass, you can also hand-remove crabgrass or even pour boiling water or 5% vinegar over crabgrass as a spot treatment.

The safest method to avoid killing your turf grass is hand pulling Johnsongrass. You can also apply vinegar for a safer herbicide, but it will still burn your lawn if it gets on it.