A horticultural applicator having a raft, at least one cable attached to the raft, a boom associated with the raft, and a conduit in communication with the raft. The raft includes a lower surface, first and second side surfaces extending upwardly and outwardly from the lower surface at opposite ends thereof, and first and second end surfaces extending generally perpendicular from opposite ends of the lower surface between the first and second side surfaces. The cable is used to drag the raft over a surface containing vegetation. The boom is adapted to apply a substance onto the vegetation traveling below the lower surface of the raft.