Quake grass, better known as quack grass, came to the United States via Europe and is one of the most challenging plant pests for farmers and gardeners to remove from their lawns. Quake grass spreads via underground rhizomes, so cutting or weeding it creates new rhizomes that allow the plant to regenerate, much like a starfish growing a new limb. The best way to remove quake grass from your lawn is by using herbicides, and even this method takes multiple applications to work.
Combine a herbicide containing glyphosate with water per manufacturer's recommendation. Pour the herbicide formula in a bowl or bucket.
Dip a sponge into the herbicide solution. Coat the quake grass with glyphosate, re-wetting the sponge in the solution as necessary. Avoid getting the herbicide on any other flowers or grass. It will kill those, too.
Dispose of the herbicide after use, following the safety precautions on the label.
Reapply the glyphosate to the quake grass in 30 to 45 days in the same manner. As the University of Minnesota notes, up to 95 percent of the quake grass rhizomes contain dormant buds, so the grass will not be killed with one round of chemical control. Reapply the glyphosate as often as necessary to eradicate the quake grass.