Weed control method and herbicidal composition

A - Human Necessities – 01 – N

Patent

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Details

A01N 43/40 (2006.01) A01N 43/64 (2006.01) A01N 43/70 (2006.01) A01N 43/707 (2006.01) A01N 47/30 (2006.01) A01N 47/32 (2006.01) A01N 47/36 (2006.01) A01N 47/38 (2006.01) A01N 61/00 (2006.01) A01P 13/02 (2006.01)

Patent

CA 2726590

The present invention provides a method of selectively controlling unwanted vegetation at a locus comprising sug-arcane and the unwanted vegetation, wherein the method comprises applying to the locus :- a. a herbicide of formula (I) or an argo chemically acceptable salt thereof; and b. a PS-II inhibiting herbicide; wherein the amount of component (a) and component (b) applied to the locus provides control of the unwanted vegetation and wherein the amount of component (b) applied safens the herbicidal effect of component (a) on the sugarcane. The invention further provides a herbicide composition comprising (a) a herbi- cide of formula (I) or an agrochemically acceptable salt thereof; and (b) a herbicide selected from the group consisting of metribuzin, hexazinone and tebuthiuron.

La présente invention concerne un procédé de lutte sélective contre une végétation indésirable en un lieu où cohabitent la canne à sucre et ladite végétation indésirable. Ce procédé consiste à appliquer à cet endroit un premier herbicide (a) représenté par la formule (I), ou l'un de ses sels agrochimiquement admis, et un second herbicide (b) inhibiteur de PS-II. En l'occurrence, la quantité de premier composant (a) et de second composant (b) appliqués à cet endroit assure la répression de la végétation indésirable, la quantité de second composant (b) appliquée assurant la phytodétoxification de la canne à sucre par rapport à l'action herbicide du premier composant (a). L'invention concerne également une composition herbicide comprenant (a) un herbicide représenté par la formule (I) ou l'un de ses sels agrochimiquement admis, et (b) un herbicide choisi dans le groupe des métribuzine, hexazinone et tébuthiurone.

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