Reivindicación 1: Una composición fungicida que comprende una mezcla de los componentes (A) y (B) como principios activos, en donde el componente (A) es un compuesto de fórmula (1) en donde R¹ es metilo; R² es hidrógeno; R³ es hidrógeno; R⁴ es cicloalquilo C₃₋₇; o una sal agronómicamente aceptable del mismo; y el componente (B) es un compuesto seleccionado del grupo que consiste en: bixafen, azufre, hidróxido de cobre, triclopiricarb, acibenzolar-S-metilo, oxicloruro de cobre, ciproconazol, difenoconazol, epoxiconazol, flutriafol, hexaconazol, ipconazol, metconazol, paclobutrazol, protioconazol, procloraz, propiconazol, pirisoxazol, tebuconazol, fenpropidina, fenpropimorf, espiroxamina, ciprodinil, fludioxonil, metalaxil, metalaxil-M (mefenoxam), carbendazim, pentiopirad, azoxistrobina, dimoxistrobina, fenaminstrobina, flufenoxistrobina, fluoxastrobina, metominostrobina, trifloxistrobina, orisastrobina, picoxistrobina, piraclostrobina, pirametostrobina, piraoxistrobina, mancozeb, folpet, clorotalonil, fluazinam, fluxapiroxad, fenhexamida, fosetil-aluminio, piribencarb, triciclazol, mandipropamid, flubeneteram, isopirazam, sedaxano, benzovindiflupir, pidiflumetofeno, isoflucipram, isotianilo, dipimetitrona, fluindapir, coumetoxistrobina (jiaxiangjunzhi), lvbenmixianan, mandestrobina, oxatiapiprolina, piraziflumid, inpirfluxam, mefentrifluconazol, ipfentrifluconazol, aminopirifeno, (Z,2E)-5-[1-(4-clorofenil)pirazol-3-il]oxi-2-metoxiimino-N,3-dimetil-pent-3-enamida, florilpicoxamid, fenpicoxamid, ipflufenoquina, quinofumelina, benzotiostrobina, fluopiram, pirapropoína, 2-(difluorometil)-N-(3-etil-1,1-dimetil-indan-4-il)piridin-3-carboxamida, 4-[[6-[2-(2,4-difluorofenil)-1,1-difluoro-2-hidroxi-3-(1,2,4-triazol-1-il)propil]-3-piridil]oxi]benzonitrilo, metiltetraprol, fluoxapiprolina, enoxastrobina, 4-[[6-[2-(2,4-difluorofenil)-1,1-difluoro-2-hidroxi-3-(5-tioxo-4H-1,2,4-triazol-1-il)propil]-3-piridil]oxi]benzonitrilo, trinexapac, trinexapac-etilo, coumoxistrobina, N-[5-bromo-2-metil-6-[(1S)-1-metil-2-propoxi-etoxi]-3-piridil]-N-etil-N-metil-formamidina, N-[5-bromo-2-metil-6-[(1R)-1-metil-2-propoxi-etoxi]-3-piridil]-N-etil-N-metil-formamidina, N-[5-bromo-2-metil-6-(1-metil-2-propoxi-etoxi)-3-piridil]-N-etil-N-metil-formamidina, N-[5-cloro-2-metil-6-(1-metil-2-propoxi-etoxi)-3-piridil]-N-etil-N-metil-formamidina, N-[5-bromo-2-metil-6-(1-metil-2-propoxi-etoxi)-3-piridil]-N-isopropil-N-metil-formamidina, N-[5-bromo-2-metil-6-(2-propoxipropoxi)-3-piridil]-N-etil-N-metil-formamidina, N-isopropil-N-[5-metoxi-2-metil-4-(2,2,2-trifluoro-1-hidroxi-1-fenil-etil)fenil]-N-metil-formamidina, N-[4-(1-ciclopropil-2,2,2-trifluoro-1-hidroxi-etil)-5-metoxi-2-metil-fenil]-N-isopropil-N-metil-formamidina, N-etil-N-[5-metoxi-2-metil-4-[2-trifluorometil)oxetan-2-il]fenil]-N-metil-formamidina, N-etil-N-[5-metoxi-2-metil-4-[2-trifuorometil)tetrahidrofuran-2-il]fenil]-N-metil-formamidina, N-metoxi-N-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]ciclopropanocarboxamida, N,2-dimetoxi-N-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]propanamida, N-etil-2-metil-N-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]propanamida, 1-metoxi-3-metil-1-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]urea, 1,3-dimetoxi-1-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]urea, 3-etil-1-metoxi-1-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]urea, N-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]propanamida, 4,4-dimetil-2-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]isoxazolidin-3-ona, 5,5-dimetil-2-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]isoxazolidin-3-ona, 1-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]pirazol-4-carboxilato de etilo, N,N-dimetil-1-[[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metil]-1,2,4-triazol-3-amina, 2-[6-(4-clorofenoxi)-2-(trifluorometil)-3-piridil]-1-(1,2,4-triazol-1-il)propan-2-ol, 2-[6-(4-bromofenoxi)-2-(trifluorometil)-3-piridil]-1-(1,2,4-triazol-1-il)propan-2-ol, 3-[2-(1-clorociclopropil)-3-(2-fluorofenil)-2-hidroxi-propil]imidazol-4-carbonitrilo, 3-[2-(1-clorociclopropil)-3-(3-cloro-2-fluoro-fenil)-2-hidroxi-propil]imidazol-4-carbonitrilo, 2-amino-6-metil-piridin-3-carboxilato de (4-fenoxifenil)metilo, N-metil-4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]bencenocarbotioamida; N-metil-4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]benzamida; (Z,2E)-5-[1-(2,4-diclorofenil)pirazol-3-il]oxi-2-metoxiimino-N,3-dimetilpent-3-enamida, (5-metil-2-piridil)-[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metanona, (3-metilisoxazol-5il)-[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]metanona, 1-[[5-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]-2-tienil]metil]pirazol-4-carboxilato de etilo, 2,2-difluoro-N-metil-2-[4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]fenil]acetamida, N-[(Z)-metoxiiminometil]-4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]benzamida, N-[N-metoxi-C-metil-carbonimidoil]-4-[5-(trifluorometil)-1,2,4-oxadiazol-3-il]benzamida, N-[3-(4-clorofenil)-4,5-dihidroisoxazol-5-il]-5-metil-1,2,4-oxadiazol-3-carboxamida, 2-(difluorometil)-N-(1,1-dimetil-3-propilindan-4-il)piridin-3-carboxamida, (2S)-2-[(3-acetoxi-4-metoxi-piridin-2-carbonil)amino]propanoato de [(1S,2S)-2-(4-fluoro-2-metil-fenil)-1,3-dimetil-butilo], (2S)-2-[[3-(acetoximetoxi)-4-metoxi-piridin-2-carbonil]amino]propanoato de [(1S,2S)-2-(4-fluoro-2-metilfenil)-1,3-dimetil-butilo], cis-jasmone, fosfonato de potasio, fosfonato de calcio, glifosato (incluyendo las sales de diamonio, isopropilamonio y potasio de los mismos), 2,4-D (incluyendo la sal de colina y éster 2-etilhexílico de la misma), dicamba (incluyendo el aluminio, aminopropilo, bis-aminopropilmetilo, colina, dicloroprop, diglicolamina, dimetilamina, dimetilamonio, sales de potasio y sodio de los mismos), glufosinato (incluyendo la sal de amonio del mismo), tiametoxam, ciclobutrifluram, isocicloseram, espiropidion, abamectina, emamectina, ciantraniliprol, clorantraniliprol, diafentiuron, broflanilida, 2-cloro-N-ciclopropil-5-(1-{2,6-dicloro-4-[1,2,2,2-tetrafluoro-1-(trifluorometil)etil]fenil}-1H-pirazol-4-il)-N-metilnicotinamida y fluxametamida. Reivindicación 13: Una composición fungicida de acuerdo con una cualquiera de las reivindicaciones 1 a 12, en donde la composición comprende además un vehículo agrícolamente aceptable y opcionalmente, un tensioactivo y/o adyuvantes de formulación. Reivindicación 14: Un método de controlar o prevenir enfermedades fitopatógenas, especialmente hongos fitopatógenos, en plantas útiles o en material de propagación de las mismas, que comprende aplicar a las plantas útiles, al emplazamiento de las mismas o al material de propagación de las mismas una composición fungicida como se define en una cualquiera de las reivindicaciones 1 a 12.Claim 1: A fungicidal composition comprising a mixture of components (A) and (B) as active ingredients, where component (A) is a compound of formula (1) where R¹ is methyl; R² is hydrogen; R³ is hydrogen; R⁴ is C₃₋₇ cycloalkyl; or an agronomically acceptable salt thereof; and component (B) is a compound selected from the group consisting of: bixafen, sulfur, copper hydroxide, triclopiricarb, acibenzolar-S-methyl, copper oxychloride, cyproconazole, difenoconazole, epoxiconazole, flutriafol, hexaconazole, ipconazole, metconazole, paclobutrazol, prothioconazole, prochloraz, propiconazole, pyrisoxazole, tebuconazole, fenpropidine, fenpropimorph, spiroxamine, cyprodinil, fludioxonil, metalaxyl, metalaxyl-M (mefenoxam), carbendazim, penthiopyrad, azoxystrobin, dimoxystrobin, phenaminstrobin, fluphenoxystrobin, fluoxastrobin, methomistrobin, trifloxystrobin, orisoxystrobin , picoxystrobin, pyraclostrobin, pyramethostrobin, pyroxystrobin, mancozeb, folpet, chlorothalonil, fluazinam, fluxapiroxad, fenhexamide, fosetyl-aluminum, piribencarb, tricyclazole, mandipropamid, flubeneteram, isopirazam, sedaxane, benzovindiflupyr, pidiflumetofen, isoflucipram, isothianil, couinstropyrimethrone, fluinstropyrimethrone (jiaxiangjunzhi), lvbenmixianan, mandestrobin, oxatia Piproline, Pyraziflumid, Inpirfluxam, Mefentrifluconazole, Ipfentrifluconazole, Aminopyrifen, (Z,2E)-5-[1-(4-chlorophenyl)pyrazol-3-yl]oxy-2-methoxyimino-N,3-dimethyl-pent-3- Enamide, Florylpicoxamid, Fenpicoxamid, Ipflufenoquine, Quinofumelin, Benzothiostrobin, Fluopyram, Pyropropoin, 2-(Difluoromethyl)-N-(3-ethyl-1,1-dimethyl-indan-4-yl)pyridin-3-carboxamide, 4-[ [6-[2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(1,2,4-triazol-1-yl)propyl]-3-pyridyl]oxy]benzonitrile, methyltetraprol, fluoxapiproline, enoxastrobin, 4-[[6-[2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(5-thioxo-4H-1,2,4-triazole- 1-yl)propyl]-3-pyridyl]oxy]benzonitrile, trinexapac, trinexapac-ethyl, coumoxystrobin, N-[5-bromo-2-methyl-6-[(1S)-1-methyl-2-propoxy- ethoxy]-3-pyridyl]-N-ethyl-N-methyl-formamidine, N-[5-bromo-2-methyl-6-[(1R)-1-methyl-2-propoxy-ethoxy]-3- pyridyl]-N-ethyl-N-methyl-formamidine, N-[5-bromo-2-methyl-6-(1-methyl-2-propoxy-ethoxy)-3-pyridyl]-N-ethyl-N- methyl-formamidine, N-[5-chloro-2-methyl-6-(1-methyl-2-propoxy-ethoxy )-3-pyridyl]-N-ethyl-N-methyl-formamidine, N-[5-bromo-2-methyl-6-(1-methyl-2-propoxy-ethoxy)-3-pyridyl]-N- isopropyl-N-methyl-formamidine, N-[5-bromo-2-methyl-6-(2-propoxypropoxy)-3-pyridyl]-N-ethyl-N-methyl-formamidine, N-isopropyl-N- [5-methoxy-2-methyl-4-(2,2,2-trifluoro-1-hydroxy-1-phenyl-ethyl)phenyl]-N-methyl-formamidine, N-[4-(1-cyclopropyl- 2,2,2-trifluoro-1-hydroxy-ethyl)-5-methoxy-2-methyl-phenyl]-N-isopropyl-N-methyl-formamidine, N-ethyl-N-[5-methoxy-2- methyl-4-[2-trifluoromethyl)oxetan-2-yl]phenyl]-N-methyl-formamidine, N-ethyl-N-[5-methoxy-2-methyl-4-[2-trifluoromethyl)tetrahydrofuran-2 -yl]phenyl]-N-methyl-formamidine, N-methoxy-N-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]cyclopropanecarboxamide, N,2 -dimethoxy-N-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]propanamide, N-ethyl-2-methyl-N-[[4-[5 -(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]propanamide, 1-methoxy-3-methyl-1-[[4-[5-(trifluoromethyl)-1,2,4- oxadiazol-3-yl]phenyl]methyl]urea, 1,3-dimethoxy-1-[[4-[5-(trifluoromethyl)-1,2, 4-oxadiazol-3-yl]phenyl]methyl]urea, 3-ethyl-1-methoxy-1-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl ]urea, N-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]propanamide, 4,4-dimethyl-2-[[4-[5-( trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]isoxazolidin-3-one, 5,5-dimethyl-2-[[4-[5-(trifluoromethyl)-1,2,4- oxadiazol-3-yl]phenyl]methyl]isoxazolidin-3-one, 1-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]pyrazole-4-carboxylate ethyl, N,N-dimethyl-1-[[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methyl]-1,2,4-triazol-3-amine , 2-[6-(4-chlorophenoxy)-2-(trifluoromethyl)-3-pyridyl]-1-(1,2,4-triazol-1-yl)propan-2-ol, 2-[6-( 4-bromophenoxy)-2-(trifluoromethyl)-3-pyridyl]-1-(1,2,4-triazol-1-yl)propan-2-ol, 3-[2-(1-chlorocyclopropyl)-3- (2-fluorophenyl)-2-hydroxy-propyl]imidazole-4-carbonitrile, 3-[2-(1-chlorocyclopropyl)-3-(3-chloro-2-fluoro-phenyl)-2-hydroxy-propyl]imidazole (4-phenoxyphenyl)methyl, N-methyl-4-[5-(trifluoromethyl)-4-carbonitrile, 2-amino-6-methyl-pyridine-3-carboxylate l)-1,2,4-oxadiazol-3-yl]benzenecarbothioamide; N-methyl-4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]benzamide; (Z,2E)-5-[1-(2,4-dichlorophenyl)pyrazol-3-yl]oxy-2-methoxyimino-N,3-dimethylpent-3-enamide, (5-methyl-2-pyridyl)- [4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]methanone, (3-methylisoxazol-5yl)-[4-[5-(trifluoromethyl)-1,2,4- oxadiazol-3-yl]phenyl]methanone, ethyl 1-[[5-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]-2-thienyl]methyl]pyrazole-4-carboxylate, 2,2-difluoro-N-methyl-2-[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]phenyl]acetamide, N-[(Z)-methoxyiminomethyl]-4- [5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]benzamide, N-[N-methoxy-C-methyl-carbonimidoyl]-4-[5-(trifluoromethyl)-1,2,4- oxadiazol-3-yl]benzamide, N-[3-(4-chlorophenyl)-4,5-dihydroisoxazol-5-yl]-5-methyl-1,2,4-oxadiazole-3-carboxamide, 2-(difluoromethyl )-N-(1,1-dimethyl-3-propylindan-4-yl)pyridin-3-carboxamide, (2S)-2-[(3-acetoxy-4-methoxy-pyridin-2-carbonyl)amino]propanoate de [(1S,2S)-2-(4-fluoro-2-methyl-phenyl)-1,3-dimethyl-butyl], (2S)-2-[[3-(acetoxymethoxy)-4-methoxy-pyridine [(1S,2S)-2-(4-fluoro-2-methylphenyl)-1,3-dimeth -2-carbonyl]amino]propanoate yl-butyl], cis-jasmone, potassium phosphonate, calcium phosphonate, glyphosate (including diammonium, isopropylammonium and potassium salts thereof), 2,4-D (including choline salt and 2-ethylhexyl ester of same), dicamba (including aluminum, aminopropyl, bis-aminopropylmethyl, choline, dichloroprop, diglycolamine, dimethylamine, dimethylammonium, potassium and sodium salts thereof), glufosinate (including ammonium salt thereof), thiamethoxam, cyclobutrifluram , isocycloseram, spiropidion, abamectin, emamectin, ciantraniliprol, chlorantraniliprol, diafenthiuron, broflanilide, 2-chloro-N-cyclopropyl-5-(1-{2,6-dichloro-4-[1,2,2,2-tetrafluoro- 1-(trifluoromethyl)ethyl]phenyl}-1H-pyrazol-4-yl)-N-methylnicotinamide and fluxametamide. Claim 13: A fungicidal composition according to any one of claims 1 to 12, wherein the composition further comprises an agriculturally acceptable carrier and optionally, a surfactant and/or formulation aids. Claim 14: A method of controlling or preventing phytopathogenic diseases, especially phytopathogenic fungi, in useful plants or propagation material thereof, which comprises applying to the useful plants, the location thereof or the propagation material thereof a fungicidal composition as defined in any one of claims 1 to 12.