Fuente: WIPO "organic farming" Structure in sheet or roll form, comprising a layer of paper in which one side is treated with a composition comprising a water-repellent product and the opposite side is treated with a composition comprising substances of natural origin which are active in inhibiting plant pests and parasites, a method for its production and its use for mulching or as a thermally insulating or packaging structure with water-repellent and mold-resistant properties.