A synergistic herbicide / fungicide mixture, comprising a herbicidally effective amount of (a) a pyridine-carboxylic acid type component of formula (I) ** Formula ** and agriculturally acceptable salts, esters and amides of the carboxylic acid, and (b ) a fungicide selected from the group consisting of azoxystrobin, carbendazim, chlorothalonyl, ciproconazole, ciprodinyl, epoxiconazole, fenpropidine, flutriafol, iprodione, kresoxim-methyl, mancozeb, metconazole, metrafenone, picoxystrobin, prochlorazine, propzonazole, pichrozonazole, procyrazone , spiroxamine, tebuconazole, tetraconazole, thiophanate-methyl, trifloxystrobin, and a picolinamide fungicide of formula (II) ** Formula **Una mezcla sinérgica de herbicida/fungicida, que comprende una cantidad herbicidamente efectiva de (a) un componente tipo ácido piridina-carboxílico de fórmula (I)**Fórmula** y sales, ésteres y amidas agrícolamente aceptables del ácido carboxílico, y (b) un fungicida seleccionado del grupo que consiste en azoxistrobina, carbendazim, clorotalonilo, ciproconazol, ciprodinilo, epoxiconazol, fenpropidina, flutriafol, iprodiona, kresoxim-metilo, mancozeb, metconazol, metrafenona, picoxistrobina, procloraz, propiconazol, proquinazid, protioconazol, piraclostrobina, quinoxifeno, espiroxamina, tebuconazol, tetraconazol, tiofanato-metilo, trifloxistrobina, y un fungicida tipo picolinamida de fórmula (II)**Fórmula**
