A suspoemulsion formulation comprising:(a) a continuous phase comprising (i) one or more block co-polymers, and(ii) one or more non-ionic surfactants(b) a dispersed emulsion phase comprising (i) a chloroacetamide, and(ii) a polymeric stabiliser and(c) a dispersed solid phase comprising (i) a 2-(substituted benzoyl)-1,3-cyclohexanedione herbicide and(ii) a stabilising metal salt.