Yes, we use WHITE tarp. Don’t think it is better than black plastic. When you live in the country you try to use whatever is on hand rather than going out and buy something new. I have no idea if it is going to kill the weed and smother the grass. As you can see from the photos, Tiffany and Odelia helped me to move the bricks and laid down the tarp. Yes, the girls moved the BRICKS! I used to think, “If only I have 1 son…..” Who said girls can’t do dirty work? Thank the Lord I have my daughters helping me. Always remember to involve your kids in the work, they enjoy hardwork, if you show them the right attitude.