Fungicidal composition comprising a pyridylethylbenzamide derivative and a compound capable of inhibiting the ergosterol biosynthesis

Abstract

A composition comprising at least a pyridylethylbenzamide derivative of general formula (I) (a) and a triazole derivative (b) and a further compound (c) selected from the group consisting of spiroxamine, prothioconazole, and tebuconazole, wherein compound (c) is different from compound (b). A method for preventively or curatively combating the phytopathogenic fungi of crops by using this composition.

What is claimed: 
     
         1 . A composition comprising
 a) a pyridylethylbenzamide derivative of formula (I)   
       
         
           
           
               
               
           
         
         
           or 2-pyridine N-oxides thereof, 
           in which 
           p is an integer equal to 1, 2, 3 or 4; 
           q is an integer equal to 1, 2, 3, 4 or 5; 
           each substituent X, independently of the others, is halogen, alkyl or haloalkyl; 
           each substituent Y, independently of the others, is halogen, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, amino, phenoxy, alkylthio, dialkylamino, acyl, cyano, ester, hydroxy, aminoalkyl, benzyl, haloalkoxy, halosulphonyl, halothioalkyl, alkoxyalkenyl, alkylsulphonamide, nitro, alkylsulphonyl, phenylsulphonyl or benzylsulphonyl; 
           and 
         
         b) a triazole derivative capable of inhibiting ergosterol biosynthesis in a (a)/(b) weight ratio of from 0.01 to 20, wherein the triazole derivative is azaconazole, bitertanol, bromuconazole, cyproconazole, difenoconazole, diniconazole, epoxiconazole, fenbuconazole, fluquinconazole, flusilazole, flutriafol, hexaconazole, imibenconazole, ipconazole, metconazole, myclobutanil, penconazole, propiconazole, prothioconazole, simeconazole, tebuconazole, tetraconazole, triadimefon, triadimenol, triticonazole, diclobutrazole, etaconazole, fluotrimazole, furconazole, furconazole-cis, triamiphos or triazbutil, and 
         c) a further fungicidal compound (c) different from a) and b) selected from the group consisting of spiroxamine, prothioconazole, and tebuconazole. 
       
     
     
         2 . The composition according to  claim 1 , wherein p is 2. 
     
     
         3 . The composition according to  claim 1 , wherein q is 2. 
     
     
         4 . The composition according to  claim 1 , wherein X, independently of the others, is halogen or haloalkyl. 
     
     
         5 . The composition according to  claim 1 , wherein X, independently of the others, is a chloro atom or a trifluoromethyl group. 10 
     
     
         6 . The composition according to  claim 1 , wherein Y, independently of the others, is halogen or haloalkyl. 
     
     
         7 . The composition according to  claim 1 , wherein Y, independently of the others, is a chloro atom or a trifluoromethyl group. 
     
     
         8 . The composition according to  claim 1 , wherein the compound of formula (I) is
 N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2-trifluoromethylbenzamide;   N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2-iodobenzamide; or   N-{2-[3,5-dichloro-2-pyridinyl]ethyl}-2-trifluoromethylbenzamide.   
     
     
         9 . The composition according to  claim 8 , wherein the compound of formula (I) is N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2-trifluoromethylbenzamide. 
     
     
         9 . The composition according to  claim 1 , wherein the fungicidal compound (c) is tebuconazole. 
     
     
         10 . The composition according to  claim 1 , wherein the triazole derivative is prothioconazole. 
     
     
         11 . The composition according to  claim 1 , further comprising an agriculturally acceptable support, carrier, filler and/or surfactant. 
     
     
         12 . The composition according to  claim 1 , wherein (a) the pyridylethylbenzamide derivative of formula (I) is N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2-trifluoromethyl-benzamide, (b) the triazole derivative capable of inhibiting the ergosterol biosynthesis is prothioconazole, and (c) the further fungicidal compound is tebuconazole. 
     
     
         13 . A method for preventively or curatively controlling phytopathogenic fungi in a crop plant, comprising applying an effective and non-phytotoxic amount of the composition according to  claim 1  to the plant, and/or to seed or fruit of the plant, and/or to the soil in which the plant is or will grow.