Combinations of sulfonylurea herbicides and safeners

A - Human Necessities – 01 – N

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A01N 47/36 (2006.01)

Patent

CA 2266464

Phytotoxic side effects of a herbicide of formula (A1) or of its herbicidal salts on cultivated plants, preferably cereals and maize, may be avoided by combining the herbicides with safeners (B) from the groups of (a) compounds of formulas (B1) and (B2), in which W is a divalent heterocyclic radical from the group of the partially unsaturated or heteroaromatic five-membered ring heterocycles with 1 to 3 hetero ring atoms of type N and O, at least one N atom and maximum one O atom being contained in the ring, and X, n, Z, R*, W have the definition given in claim 1; and/or of (b) compounds from the group of growth regulators (growth promoting substances) with a hormone-like effect.

Les effets secondaires phytotoxiques de l'herbicide de la formule (A1) ou de ses sels herbicides sur les plantes agricoles, de préférence les céréales et le maïs, peuvent être supprimés grâce à l'association de l'herbicide avec des phytoprotecteurs (B) du groupe a) des composés des formules (B1) et (B2) dans lesquelles W désigne un reste hétérocyclique divalent du groupe des hétérocyclesà noyau pentagonal partiellement insaturés ou hétéroaromatiques avec à 1 à 3 atomes à noyau hétérocyclique du type N et O, au moins un atome de N et au plus un atome de O étant contenus dans le noyau, et X, n, Z, R*, W sont tels que définis dans la revendication 1, et/ou b) des composés du groupe des régulateurs de croissance agissant à la manière d'hormones (substances de croissance).

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