FUNGICIDAL MIXTURES COMPRISING R-METALAXYL

摘要

The present invention relates to novel fungicidal two-component compositions based on metalaxyl having an R-enantiomer content of more than 70% by weight as one essential component and a second fungicidal component, for the treatment of phytopathogenic diseases of crop plants, especially phytopathogenic fungi, and to a method of combating phytopathogenic diseases on crop plants. The metalaxyl component is called active ingredient (I). The following fungicides may be used as the second component (II) of the mixture: either a compound (IIA), N-(3'-(1'-chloro-3-methyl 2'-oxopentan))-3,5-dichloro-4-methylbenzamide (EP-600629); or a compound (IIB) (EP-253213) methyl (E)-2-methoxyimino-[2-(o-tolyloxymethyl)phenyl]acetate; or a (S)-valinamide of formula (IIC) (EP-472996); wherein R4 is isopropyl, and R5 is 4-methylphenyl, and wherein the asymmetric center is preferably (R); or a compound (IID) (EP-551048) (S)-1-anilino-4-methyl-2-methylthio-4-phenylimidazolin-5-one; or a compound (IIE), the Pseudomonas fluoresens strain, ATCC accesion No. 55169 (USP-5,348,742) is particularly effective incombating or preventing fungal diseases of crop plants. These combinations exhibit synergistic fungicidal activity.