present invention relates to an agrochemical composition containing a pesticide and a copolymer which contains in polymerized format least 20 wt% vinylimidazol and/or a quaternized vinylimidazol an acidic comonomer anda hydrophobic comonomer which comprises C alkyl (meth)acrylate mono Calkyl terminated poly(ethylene glycol)(meth)acrylate vinyl ester of aliphatic C carboxylic acids or vinyl C alkyl ether. It further relates to a method for preparing said composition by mixing the pesticide and the copolymer and to a use of said copolymer as dispersing agent in a composition containing a pesticide. In addition it relates to a method for controlling phytopathogenic fungi and/or undesired plant growth and/or undesired attack by insects or mites and/or for regulating the growth of plants where said composition is allowed to act on the particular pests their habitat or the plants to be protected from the particular pest the soil and/or on undesired plants and/or the useful plants and/or their habitat. Finally it relates to seed containing the said composition.
