The present invention relates to a composition comprising a pesticide and an adjuvant selected from a carbamate of the formula (I), a carbamate of the formula (II), or a polymer, which is obtainable by polymerization of at least one alkylene oxide and a carbamate of the formula (I) and/or (II) as defined below. The invention further relates to a method of preparing said composition by bringing the adjuvant and the pesticide into contact to a polymer, which is obtainable by the polymerization as defined below, and which consists of the compounds of the formula (III) or (IV) as defined below to a method of preparing said polymer by first reacting a glycerol carbonate and an amine of the formula R-NH2 yielding the carbamate of the formula (I) and/or (II) followed by polymerization of at least one alkylene oxide and the carbamate of the formula (I) and/or (II) to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein said composition is allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment and to seed containing said composition.La présente invention concerne une composition comprenant un pesticide et un adjuvant sélectionné parmi un carbamate de la formule (I), un carbamate de la formule (II), ou un polymère, qui peut être obtenu par polymérisation dau moins un oxyde dalkylène et un carbamate de la formule (I) et/ou (II) telle que définie ci-dessous. En outre, linvention concerne un procédé de préparation de ladite composition en mettant en contact ladjuvant et le pesticide un polymère, qui peut être obtenu par la polymérisation telle que définie ci-dessous, et qui est constitué des composés de la formule (III) ou (IV) telle que définie ci-dessous un procédé de préparation dudit polymère, en faisant dabo
