Claim 1: a composition for Controlling a fitoenfermedad tetrazolinona characterized in that it comprises a compound represented by the formula (1) where x u00b9 represents an atom of HaulsHydrogen, an alkyl group or a c u2081 u208b u2086 c u2081 u208b u2086 alkoxy Group, and x represents an alkyl group c u2081 u208b u2083, a cycloalkyl Group c u2083 u208b u2084, a Halogen Atom or an alkoxy Group c u2081 u208b u2083,Amidine compound and at least one selected from the following group (a), Group (a): a group that consists of n '- (4 - [(2 - 4.5 - diclorotiazol - il) oxy] - 2,5 - dimetilfenil} - n-ethyl-n - metilmetanimidamida and N '- (2,5 - dimethyl - 4-phenoxyphenyl) - n-ethyl-n - metilmetanimidamida.Claim 7: a method for Controlling a fitoenfermedad,Characterized in that it comprises a step of implementation of each tetrazolinona effective amount of a compound represented by the formula (1) where x u00b9 represents a Halogen Atom,An alkyl group or a c u2081 u208b u2086 c u2081 u208b u2086 alkoxy Group, and x represents an alkyl group c u2081 u208b u2083, a cycloalkyl Group c u2083 u208b u2084, a Halogen Atom or an alkoxy Group c u2081 u208b u2083,Amidine compound and at least one selected from the following group (a), Group (a): a group that consists of n '- (4 - [(2 - 4.5 - diclorotiazol - il) oxy] - 2,5 - dimetilfenil} - n-ethyl-n - metilmetanimidamida and N '- (2,5 - dimethyl - 4-phenoxyphenyl) n-ethyl-n - metilmetanimidamida, a plant or soil to cultivate The Plant.Reivindicación 1: Una composición para controlar una fitoenfermedad caracterizada porque comprende un compuesto de tetrazolinona representado por la fórmula (1) en donde X¹ representa un átomo de halógeno, un grupo alquilo C₁₋₆ o un grupo alcoxi C₁₋₆, y X² representa un grupo alquilo C₁₋₃, un grupo cicloalquilo C₃₋₄, un átomo de halógeno o un grupo alcoxi C₁₋₃, y al menos un compuesto de amidina seleccionado del siguiente grupo (A), Grupo (A): un grupo que consiste en N’-{4-[(4,5-diclorotiazol-2-il)oxi
