Been doing this lawn for over a year and it is 80% weeds and clover. They hired me because I mulch and they are green people. I told them I would spray for weeds for free just so I could have the satisfaction of mowing grass instead of weeds. She says "I don't like chemicals in our yard and it might kill the birds" he says "I don't really see many weeds but could you do something about the moss?" I do the yard next to them and it is perfect. They don't see the difference. How can people be so blind?