The invention relates to the use of N-cyclopropyl-N-[substituted-benzyl]-3-(difluoromethyl)-5-fluoro-1- methyl-1H-pyrazole-4-carboxamide or thiocarboxamide derivatives and/or salts thereof for improving growth in crops, comprising preventively and/or curatively controlling resistant strains of fungi, particularly for controlling strains of fungi resistant to SDHI fungicides. The invention further relates to associated methods.