I'm rehabbing a walkway path in front of my house. Photo below. I want to yank up the grass and then lay down landscape fabric, then 3-4 inches of small stones. And replace the large flat rocks. There a lot of grass growing there that I want to eliminate. Planning on covering each section with clear plastic which I understand will kill the grass. Question: Will the grass be easier to remove, roots and all, after killing it? If not, then perhaps I should just use a pick axe and shovel, and not bother to wait to kill the grass. But digging up and yanking out all that grass appears to be a lot of labor. Any other suggestions? Thanks.