Herbicidal compositions based on 4-amino-6-chloro-5-alkylthiopyrimidine derivatives and 2,6-dinitroaniline derivatives, and method of treating crops with said compositions.

摘要

1. Herbicidal compositions characterized in that they simultaneously contain, as active ingredients, a derivative of 4-amino 6-chloro 5-alkylthio pyrimidine of the formula : see diagramm : EP0070219,P7,F1 in which n is 0, 1 or 2, R1 is alkyle having 1 to 5 carbon atoms, R2 is hydrogen or alkyl having 1 to 5 carbon atoms and R3 is hydrogen or alkyl having 1 to 5 carbon atoms, and a derivative of 2,6-dinitro aniline of the formula : see diagramm : EP0070219,P7,F2 in which R is alkyl having 1 to 4 carbons, trifluoromethyl or methylsulfonyl, R' is hydrogen, methyl or amino, R4 is hydrogen or alkyl having 1 to 5 carbon atoms and R5 is alkyl having 1 to 5 carbon atoms, alcenyl having 2 to 5 carbon atoms, cyclopropylmethyl or 2-chloro ethyl, the weight ratio compound of formula (I)/compound of formula (II) in the compositions being 0.4 to 1.5.