Abstract: A cutting line for a rotating-line trimmer that simultaneously applies herbicide as vegetation is cut. The herbicidal cutting line comprises a flexible cutting-line core (13) herbicidal coating (15) that covers all or part of the line core and a thin protective shield (17) covering all or part of the herbicidal coating. As vegetation is cut, protective shield (17) ruptures exposing herbicidal coating (15) to vegetation. The cutting line is used with existing line trimmers in applications in which vegetation regrowth is objectionable.