Fungicidal mixtures comprising r-metalaxyl

Details Fungicidal mixtures comprising r-metalaxyl Fungicidal mixtures comprising r-metalaxyl

A - Human Necessities

01

N

A01N 37/46 (2006.01) A01N 37/20 (2006.01) A01P 1/00 (2006.01) A01P 3/00 (2006.01) A01P 13/00 (2006.01)

Patent

CA 2341249

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- 472(996); wherein R4 is isopropyl, and R5 is 4-methylphenyl, and wherein the asymmetric center is preferably (R); or a compound (IID)(EP-5511048) (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.

L'invention porte sur un nouveau fongicide à deux composants dont du métalaxyle à 70 % en poids d'énantiomère R comme composant principal et un deuxième composant fongicide, servant à traiter les maladies phytopathogènes des cultures et en particulier des champignons phytopathogènes, et sur un procédé de lutte contre les maladies phytopathogènes des cultures. Le composant de métalaxyle est le principe actif (I). Le deuxième composant (II) peut être choisi parmi les composés: (IIA), N-(3'-(1'-chloro-3-méthyl 2'-oxopentan))-3,5-dichloro-4-méthylbenzamide (EP-600629); (IIB), méthyl (E)-2-méthoxyimino-[2-(o-tolyloxyméthyl)phényl]acétate (EP-253213); ou une (S)-valinamide de formule (IIC) (EP-472996) dans laquelle R4 est isopropyle, R5 est 4-méthylphényle et où le centre asymétrique est de préférence (R); ou un composé (IID) (EP-551048) (S)-1 anilino-4-méthyl-2-méthylthio-4-phénylimidazolin-5-one; ou un composé (IIE), consistant en la souche Pseudomonas fluoresens, No accession ATCC. 55169 (USP-5,348,742). Ce nouveau fongicide est particulièrement efficace pour combattre ou prévenir les maladies phytopathogènes des cultures, les différentes combinaisons présentant une activité fongicide synergique.

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