Synergistic herbicidal compositions and method for controlling undesirable vegetation
申请人:STAUFFER CHEMICAL COMPANY
公开号:EP0015453A2
公开(公告)日:1980-09-17
Synergistic herbicidal activity is displayed by compositions comprising the following two components:
(a) a pyrrolidone of the formula
in which:
X is selected from the group consisting of hydrogen, chlorine, and methyl;
Y is selected from the group consisting of hydrogen, chlorine and bromine;
Z is selected from the group consisting of chlorine and bromine;
R' is selected from the group consisting of hydrogen and Ci-C4 alkyl;
R2 is selected from the group consisting of hydrogen, halogen, C1-C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1-C4 alkoxy, C1-C4 alkylthio, C1-C4 alkylsulfinyl, C1-C4 alkylsulfonyl, trifluoromethylsulfinyl, trifluoromethylsulfonyl, penta- fluoropropionamido, and 3-methylureido; and
R3 is selected from the group consisting of hydrogen, C1-C4 alkyl, chlorine and trifluoromethyl;
and
(b) a phosphonic acid of the formula
in which:
R4 is selected from the group consisting of C1-C4 alkyl, C1-C4 haloalkyl, and -CH2NHCH2COOH, at a weight ratio of (a) to (b) of from about 0.1:1 to about 20:1.
由以下两种成分组成的组合物具有协同除草活性:
(a) 式中的吡咯烷酮
其中
X 选自由氢、氯和甲基组成的组;
Y 选自由氢、氯和溴组成的组
Z 选自氯和溴组成的组;
R' 选自由氢和 Ci-C4 烷基组成的组;
R2 选自由氢、卤素、C1-C4 烷基、乙酰基、三氟甲基、硝基、氰基、C1-C4 烷氧基、C1-C4 烷硫基、C1-C4 烷基亚磺酰基、C1-C4 烷基磺酰基、三氟甲基亚磺酰基、三氟甲基磺酰基、五氟丙酰氨基和 3-甲基脲基组成的组;以及
R3 选自氢、C1-C4 烷基、氯和三氟甲基组成的组;
和
(b) 式中的膦酸
其中
R4选自由C1-C4烷基、C1-C4卤代烷基和-CH2NHCH2COOH组成的组,(a)与(b)的重量比约为0.1:1至约20:1。