Spray the herbicide onto the nimblewill using a commercial pesticide applicator. Follow the instructions on the label to know how much herbicide to use. Apply the herbicide 3 times, waiting 3-4 weeks in-between applications. Do these applications in the summer when your grass is actively growing. If the nimblewill turns white, it means the herbicide is working.

Spray the herbicide onto the nimblewill using a commercial pesticide applicator. Wait until the summer when the nimblewill is actively growing to apply the herbicide. Wait up to 4 weeks for the herbicide to fully kill the nimblewill. Plant seeds where the nimblewill was so new grass and plants grow in its place.

Mix the herbicide in with the fertilizer you are adding while planting in the spring. Apply more herbicide during the summer after it is been a few months since the initial application.

Take a shower and wash your clothes separate from the rest of your laundry after applying herbicide to remove any traces of it. If you accidentally get herbicide on your skin, wash the area immediately with soap and water for 15-20 minutes. [6] X Trustworthy Source U. S. National Capital Poison Center Independent poison control center providing resources to prevent poisonings and save lives Go to source If you accidentally get herbicide in your eyes or mouth, call Poison Control.

You may want to use a shovel to dig all of the nimblewill’s roots out of the ground so there is less of a chance it will grow back.

Grading the soil so it is more level if it is located at the base of a slope. Tilling 2–3 inches (5. 1–7. 6 cm) of compost into the soil so it is more porous. Avoiding over-watering. If you are using an automatic sprinkler system, make sure it is not providing too much water to your grass and plants. [10] X Research source

Spread your desired grass seed over the lawn or bed of grass in late summer or early fall. Wait until the following growing season for the new grass to grow in and out-compete the nimblewill.