USE OF 1-[2-[[1-(4-CHLOROPHENYL)PYRAZOL-3-YL]OXYMETHYL]-3-METHYL-PHENYL]-4-METHYL-TETRAZOL-5-ONE FOR COMBATING RESISTANT PHYTOPATHOGENIC FUNGI ON CEREALS

There is provided the use of a 1-[2-[[1-(4-chlorophenyl)pyrazol-3-yl]oxymethyl]-3-methyl-phenyl]-4-methyl-tetrazol-5-one (compound l) for combating phytopathogenic fungi on cereals, such fungi containing a mutation in the mitochondrial cytochrome b gene conferring resistance to Qo inhibitors, wherein the mutation is G143A or F129L. There is also provided a method for controlling phytopathogenic fungi as defined above, wherein the fungi, their habitat, breeding grounds, their locus or the plants to be protected against fungal attack, the soil or plant propagation material are treated with at least an effective amount of the compound l. La présente invention concerne l'utilisation de tétrazolinones facultativement en combinaison avec d'autres pesticides pour combattre des champignons phytopathogènes résistants sur des céréales.