Fuente: WIPO "tomato" The present invention provides a synergistic ternary herbicidal compositions comprising first herbicide A, Thiencarbazone-methyl and a second herbicide B, selected from Sulfentrazone or Pyroxasulfone and a third herbicide C, selected from Metribuzin or Pyrazosulfuron or Flumioxazin or Chlorimuron-ethyl or Flazasulfuron, formulation thereof and to a method of controlling undesired vegetation in economically important crops.