Used this stuff as recommended and it works Quite nicely. I was told that this stuff has "Something" in it that "Might Help" Deter the Dog's in our HOOD that are "WALKING" Their Owners from Crapping on our NEW $3000.00 TURF LAWN???? How Inconsiderate can These Animal "Owners / Walkers" Be??? Greta stuff, But it Ain't Cheap.