A hand held motor driven applicator (10) for applying liquids particularly weedicides selectively to undesired plants in a field, garden, crop or the like including: a motor (12); a rotor assembly (22) including a rotatable wick support (41) having one or more applicator wicks (45) attached thereto, said rotor assembly (22) being supported for rotation, in use, about a vertical axis (43) by support means (18); drive means (23) operatively connected to said motor (12) and said rotor assembly (22) for transferring rotary drive from said motor (12) to said rotor assembly (22); storage means (26) in liquid communication with said one or more applicator wicks (45) for storing a quantity of liquid for supplying said one or more wicks (45) with liquid while said rotor assembly (22) is rotating; and an elongate handle (15) operatively connected to said support means (18) by which a user may maintain said rotor assembly (22) proximal to the surface of the field, garden or crop, whereupon said applicator wicks (45) may apply liquid to selected plants upon contact.