Herbicidal compositions
View Patent ↗The present invention provides, inter alia, a herbicidal composition comprising: (i) a protoporphyrinogen oxidase inhibiting herbicide selected from the group consisting flumioxazin, sulfentrazone, butafenacil and a diphenyl ether selected from the group consisting of acifluorfen (including aciflurofen-sodium), fomesafen (including fomesafen-sodium), lactofen and oxyfluorfen; or an agronomically acceptable salt of said herbicide; and (ii) a safener of Formula (II) or an agronomically acceptable salt of said compound, wherein: —R a is selected from the group consisting of halogen, nitro, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 3 -C 6 cycloalkyl, phenyl, C 1 -C 4 alkoxy, cyano, C 1 -C 4 alkylthio, C 1 -C 4 alkylsulfinyl, C 1 -C 4 alkylsulfonyl, C 1 -C 4 alkoxycarbonyl and C 1 -C 4 alkylcarbonyl; and R b and R c are independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, C 3 -C 6 alkenyl and C 3 -C 6 alkynyl.
1. A herbicidal composition comprising:
(i) a protoporphyrinogen oxidase inhibiting herbicide selected from the group consisting flumioxazin, sulfentrazone, butafenacil and a diphenyl ether selected from the group consisting of acifluorfen, fomesafen, lactofen and oxyfluorfen; or an agronomically acceptable salt of said herbicide; and
(ii) a safener of Formula (II);
or an agronomically acceptable salt of said compound, wherein:—
R a is selected from the group consisting of halogen, nitro, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 3 -C 6 cycloalkyl, phenyl, C 1 -C 4 alkoxy, cyano, C 1 -C 4 alkylthio, C 1 -C 4 alkylsulfinyl, C 1 -C 4 alkylsulfonyl, C 1 -C 4 alkoxycarbonyl and C 1 -C 4 alkylcarbonyl; and
R b and R c are independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, C 3 -C 6 alkenyl and C 3 -C 6 alkynyl.
2. A herbicidal composition accordingly to claim 1 , wherein the protoporphyrinogen oxidase inhibiting herbicide is selected from the group consisting flumioxazin, sulfentrazone, and fomesafen; or an agronomically acceptable salt thereof.
3. A herbicidal composition according to claim 1 , wherein the herbicide is fomesafen or an agronomically acceptable salt thereof.
4. A herbicidal composition according to claim 1 , wherein the safener is a compound of Formula (II) wherein:
R a is C 1 -C 4 alkoxy;
R b is C 1 -C 6 alkyl; and
R c is hydrogen.
5. A herbicidal composition according to claim 1 , further comprising at least one additional pesticide.
6. A method of selectively controlling weeds at a locus comprising crop plants and weeds, wherein the method comprises application to the locus of a weed controlling amount of a herbicidal composition according to claim 1 .
7. A method according to claim 6 , wherein the crop plants are selected from the group consisting of barley, oats, sorghum, wheat, cotton, maize, rice, switch grass and sugar cane.
8. A method according to claim 7 , wherein the crop plant is wheat or maize.
9. A method according to claim 6 , wherein component (ii) is applied as a seed treatment to the crop plant prior to sowing.
10. A method according to claim 6 , wherein components (i) and (ii) are applied to the locus as a single, pre-emergence application.