Fuente: WIPO "tomato" The invention relates to a synergistic herbicidal composition for controlling undesired vegetation or weeds for longer period in plants, more particularly to a synergistic composition comprising pyroxasulfone; sulfentrazone; and at least one additional herbicide selected from clomazone, diclosulam and flumioxazin. The invention further relates to formulations and methods of controlling undesired vegetation with the composition and provides the advantages of enhanced efficacy, increased spectrum of activity, improved shelf life, improved plant vigour and yield.