An herbicide which pentrates root cell walls, bursts them and causes the root to die and decay. A root growth inhibitor which attaches to surface-active organic material to inhibit further root cell division or growth for approximately three years. A surfactant blend which strips away grease and slime from the roots permitting penetration for the formulation into the root mass. A foaming agent which provides a durable, fine-textured “vehicle” to carry Vaporooter into maximum contact with all roots and pipe surfaces.