what chemical kills weeds but not grass

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2, 4-D

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Corn gluten meal is a safe method to apply a weed killer that will not kill grass. This byproduct of the corn milling process prevents new weeds from forming by inhibiting the weeds from germinating and developing into fully grown plants. This natural weed killer is not only safe to use around animals, but it also adds nitrogen to your lawn.

A setting between three to four inches for your grass is an ideal height to keep it healthy and thriving. Similar to vinegar, salt is an effective weed killer that demands caution when used around grass and other plants.

Weeds, such as crabgrass, dandelions and clover, can quickly overtake your turfgrass, changing the appearance and texture of your lawn. While good cultural practices are the best way to control weeds, sometimes a chemical weed killer for lawns may be necessary.

Many homeowners wish to spray herbicides on their lawns to destroy weeds without the risk of killing the grass. Several herbicide ingredients exist that do not harm grasses if used as directed. Spot-treating weeds with herbicides is not always safe for grass.