Synergistic fungicidal active substance combinations
Novel active compound combinations comprising a carboxamide of the general formula (I) (group 1) in which A, R 1 , R 2 and R 3 are as defined in the description, and the active compound groups (2) to (23) listed in the description have very good fungicidal properties.
1. A composition comprising synergistically effective amounts of (1-1) N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and (9-3) pyrimethanil; wherein the ratio of N-(3′,4′-dichloro-5-fluoro-1,1′-bipheny-2-yl)-3-(difluoromethly)-1-methyl-H-pyrazole-4-carboxamide to pyrimethanil is from 1:1 to 1:20.
2. A method for controlling unwanted phytopathogenic fungi, comprising applying a composition according to claim 1 to the unwanted phytopathogenic fungi, their habitat, or a combination thereof.
3. A process for preparing a fungicidal composition, comprising mixing a composition according to claim 1 with an extender, a surfactant, or a combination thereof.