The present invention relates to the field of the plant protection formulations. In particular, the invention relates to formulations in the form of oil-in-water suspoemulsions (o/w suspoemulsions) which comprise one or more herbicidal active substances from the group of the hydroxybenzonitriles and at least one further agrochemical active substance which does not belong to the group of the hydroxybenzonitriles, the formulations being free of alkylphenol polyethoxylates, and naphthalene being present in an amount of less than 0.5%. The suspoemulsions according to the invention are suitable for controlling undesired vegetation.