N-(Tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamides. N-(Tetrazol-5-yl)- and N-(triazol-5-yl)arylcarboxamides of the general formula (I) are described as herbicides. In this formula (I), X, Y, Z and R are each radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen. A and B are each N and CY.Se describen N-(tetrazol-5-il)- y N-(triazol-5-iI)arilcarboxamidas de la fórmula (I) como herbicidas. (Ver Formula) En esta fórmula (I), 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.