The wick for volatile substance-evaporators is formed from a strip (1) of wood and is characterized in that the strip (1) has a height of between 120 mm and 170 mm, a width of between 40 and 80 mm, in the widest part thereof, and a thickness of between 1.5 mm and 3 mm. A more constant rate of evaporation of a fragrance or insecticide is achieved plus a more balanced diffusion of fragrance or insecticide, together with greater intensity of the fragrance or of the efficacy of the insecticide in the room to be freshened or protected.
