Herbicide Composition for Paddy Field

Abstract

A herbicide composition for paddy field characterized by containing (a) a herbicidal difluoromethanesulfonamide derivative represented by the formula (I)

Description

Claims

1. A herbicide composition for a paddy field characterized by comprising a combination of components (a), (b) and/or (c), wherein is one or more difluoromethanesulfonamide derivatives represented by the formula (I),

2. A composition according to claim 1, characterized in that X represents fluorine or chlorine,Y represents CH or N,R1 represents hydrogen, andR2 represents hydrogen or hydroxy, orR1 and R2 together form C═O with the carbon atom to which they are bonding, in the formula (I).

3. A composition according to claim 2, characterized in that X represents fluorine or chlorine,Y represents CH,R1 represents hydrogen, andR2 represents hydrogen or hydroxy.

4. A composition according to claim 3, characterized in that the herbicidal compounds (b) are selected from the group consisting of (b-1) anilofos, (b-2) pretilachlor, (b-3) cafenstrole, (b-4) cyhalofop-butyl, (b-5) penoxsulam, (b-6) pyraclonil, (b-7) bispyribac-sodium, (b-8) fentrazamide, (b-9) mefenacet, (b-10) oxaziclomefone, (b-11) benfuresate, (b-12) bensulfuron-methyl, (b-13) ethoxysulfuron, (b-14) bromobutide and (b-15) AVH301.

5. A composition according to claim 3, characterized in that the safener compound (c) is selected from the group consisting of dymron (c-1), mefenpyr-diethyl (c-2) and isoxadifen (c-3).

6. A composition according to claim 1, characterized in that it comprises one or more herbicidal compounds (b) in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

7. A composition as claimed in claim 2, characterized in that it comprises one or more herbicidal compounds (b) in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

8. A composition as claimed in claim 3, characterized in that it comprises one or more herbicidal compounds (b) in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

9. A composition as claimed in claim 4, characterized in that it comprises one or more herbicidal compounds (b) in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

10. Method for controlling weeds in a paddy field which comprises applying to the weeds, parts of the weeds, weed seeds or their habitat, optionally in the presence of a crop, a combination of a herbicide (a) and a herbicide (b), ora herbicide (a) and a safener (c), ora herbicide (a), a herbicide (b) and a safener (c),wherein the components (a), (b) and (c) of the specific combination are applied simultaneously or sequentially, and wherein the components are defined as in claim 1.

11. Method as claimed in claim 10, characterized in that X represents fluorine or chlorine,Y represents CH or N,R1 represents hydrogen, andR2 represents hydrogen or hydroxy, orR1 and R2 together form C═O with the carbon atom to which they are bonding, in the formula (I).

12. Method as claimed in claim 11, characterized in that X represents fluorine or chlorine,Y represents CH,R1 represents hydrogen, andR2 represents hydrogen or hydroxy.

13. Method as claimed in claim 12, characterized in that the herbicidal compounds (b) are selected from the group consisting of (b-1) anilofos, (b-2) pretilachlor, (b-3) cafenstrole, (b-4) cyhalofop-butyl, (b-5) penoxsulam, (b-6) pyraclonil, (b-7) bispyribac-sodium, (b-8) fentrazamide, (b-9) mefenacet, (b-10) oxaziclomefone, (b-11) benfuresate, (b-12) bensulfuron-methyl, (b-13) ethoxysulfuron, (b-14) bromobutide and (b-15) AVH301.

14. Method as claimed in claim 12, characterized in that the safener compound (c) is selected from the group consisting of dymron (c-1), mefenpyr-diethyl (c-2) and isoxadifen (c-3).

15. Method as claimed in claim 10, wherein the crop is rice.

16. Method according to claim 10, characterized in that it comprises one or more compounds (c) as a safener in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

17. Method according to claim 11, characterized in that it comprises one or more compounds (c) as a safener in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

18. Method according to claim 12, characterized in that it comprises one or more compounds (c) as a safener in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).

19. Method according to claim 13, characterized in that it comprises one or more compounds (c) as a safener in the range of 0.05-200 parts by weight to 1 part by weight of the compound (a).