Synergistic herbicidal compositions

Details Synergistic herbicidal compositions Synergistic herbicidal compositions

A - Human Necessities

01

N

71/8.5

A01N 43/36 (2006.01) A01N 57/20 (2006.01)

Patent

CA 1134636

PR-5385/5557A SYNERGISTIC HERBICIDAL COMPOSITIONS Abstract of the disclosure Synergistic herbicidal activity is displayed by compositions comprising the following two components (a) a pyrrolidone of the formula Image in which X is selected from the group consisting of hydro- gen, chlorine and methyl; Y is selected from the group con- sisting of hydrogen, chlorine and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1-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, trifluoromethyl- sulfonyl, pentafluoropropionamido, 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 Image 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.

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