N - (tetrazol described - 5 - II) and N - (5 - (IL) of the formula (i) arilcarboxamidas as herbicides. In This formula (1), X, y, Z and R represent Radicals such as Hydrogen, Organic Radicals such as Rent and other Radicals such as halogens. A and B represent N and Cy.Se describen N-(tetrazol-5-iI)- y N-(triazol-5-il)arilcarboxamidas de la fórmula (I) como herbicidas.En esta fórmula (1), X, Y, Z y R representan radicales tales como hidrógeno, radicales orgánicos tales como alquilo y otros radicales tales como halógeno. A y B representan N y CY.