I had would never use these guys again. My yard was not throughly sprayed and I could've done better job!! There were serveral huge spots that they had missed and the weeds grew back at where they had not sprayed ( right in middle of my front yard) The owner said he would drive back to check after 2-3 weeks but when I called back he played dumb with me like he didn't see anything wrong with spraying. It was all spotty light and heavy dark green dyeon my yard...wish now I had taken pictures of it you wouldn't even believe! NEVER again would I use them.