The present invention relates to a composition comprising microcapsules which comprise a polyurea shell and a core wherein the core comprises a water insoluble pesticide and the shell comprises a polymerization product of a tetramethylxylylene diisocyanate an cycloaliphatic diisocyanate and an aliphatic diamine to a method for preparing the composition comprising the steps of contacting water the pesticide the tetramethylxylylene diisocyanate the cycloaliphatic diisocyanate and the aliphatic diamine and 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 the composition is allowed to act on the respective pests 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.
