The present invention relates to:- A storage stable herbicidal concentrate which may be diluted with water to provide an aqueous herbicidal application mixture for application to the foliage of a plant, said concentrate comprising a potassium, monoammonium, diammonium, sodium, monoethanolamine, dimethylammonium, dimethylamine, n-propylamine, ethylamine, ethylenediamine, hexamethylenediamine, sulfoxonium or trimethylsulfonium salt of glyphosate and having a glyphosate acid equivalent concentration of at least 270 grams per liter, and a surfactant, the nature of said surfactant and the composition of said concentrate being such that, upon application to a plant of the concentrate or said application mixture, anisotropic aggregates comprising said surfactant are formed on said plant foliage and- A pesticidal composition comprising at least one herbicide and a certain amount of a specific surfactant.
