The invention relates to aqueous, aluminium silicate-free, highly concentrated suspension concentrates, containing the active substance metribuzin, one or more surfactants on the basis of non-ionic polymers from the group of acrylic grafted polymers, one or more thickeners on the basis of anionic heteropolysaccharides from the group xanthan gum, one or more wetting agents and optionally further constituents, such as defoamers, anti-freeze agents and preservatives as well as further surfactants other than the aforementioned constituents.
