The present invention relates to an aqueous composition comprising a water-insoluble pesticide in form of suspended particles, a cellulose ether selected from methylhydroxyethyl cellulose or methylhydroxypropyl cellulose, and a thickener selected from inorganic clays or polysaccharides which are different from the cellulose ether. The invention furthermore relates to a process for the preparation of this composition 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, their environment or the plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or their environment and furthermore to seed comprising the composition.La presente invención se refiere a una composición acuosa que comprende un pesticida insoluble en agua en la forma de partículas suspendidas, un éter de celulosa seleccionado entre metilhidroxipropilcelulosa, y un espesante seleccionado entre arcillas inorgánicas o entre polisacáridos que son diferentes del éter de celulosa.
