re: Dollarweed

Yes to a extent but it’s a perennial weed so it will come back. If it is taking over your yard you not using the proper herbicide. Spray it now with MSM Turf (metsulfuron methyl) with surfactant (spreader sticker) added to the solution, 1/8 teaspoon MSM + 2 teaspoon of surfactant per gallon of water sprayed over 1000 sq ft of lawn. Repeat on a warm day in 3 weeks or so. Resume in late winter/early spring.

Here is a article to read LINK