The present invention relates to a new crystalline form of 3-(Difluormethyl)-1-methyl-N-(3′,4′,5′-trifluor[1,1′-biphenyl]-2-yl)-1H-pyrazol-4-carboxamide. The invention also relates to processes for the production of this crystalline form and formulations for plant protection which contain the crystalline form of 3-(Difluormethyl)-1-methyl-N-(3′,4′,5′-trifluor[1,1′-biphenyl]-2-yl)-1H-pyrazol-4-carboxamide.