HERBICIDAL COMPOSITIONS

Abstract

The present invention relates to a herbicidal composition comprising (A) a herbicidally effective amount of a compound of Formula (I), wherein G is selected from the group consisting of hydrogen, C(O)CH.sub.3 and C(O)OCH.sub.3; and (B) at least one herbicide selected from the group consisting of 2,4-D, clopyralid, dicamba, florpyrauxifen, fluroxypyr, halauxifen, triclopyr and 4-amino-3-chloro-5-fluoro-6-(7-fluoro-1H-indol-6-yl)pyridine-2-carboxylic acid including agrochemically acceptable esters or salts of any of the aforementioned (B) compounds. The present invention further relates to methods of controlling weeds comprising the herbicidal compositions of the invention.

##STR00001##

Claims

1. An herbicidal composition comprising (A) a herbicidally effective amount of a compound of Formula (I) ##STR00005## wherein G is selected from the group consisting of hydrogen, C(O)CH.sub.3 and C(O)OCH.sub.3; and (B) at least one herbicide selected from the group consisting of 2,4-D, clopyralid, dicamba, florpyrauxifen, fluroxypyr, halauxifen, triclopyr and 4-amino-3-chloro-5-fluoro-6-(7-fluoro-1H-indol-6-yl)pyridine-2-carboxylic acid including agrochemically acceptable esters or salts of any of the aforementioned (B) compounds.

2. An herbicidal composition according to claim 1, wherein the compound of Formula (I) is selected from the group consisting of Formula (Ia), (Ib) and (Ic). ##STR00006##

3. An herbicidal composition according to claim 1, wherein the compound of Formula (I) is Formula (Ic).

4. An herbicidal composition according to claim 1, wherein component B is 2,4-D (B1) or an agrochemically acceptable ester or salt thereof.

5. An herbicidal composition according to claim 1, wherein component B is clopyralid (B2).

6. An herbicidal composition according to claim 1, wherein component B is dicamba (B3) or an agrochemically acceptable ester or salt thereof.

7. An herbicidal composition according to claim 1, wherein component B is florpyrauxifen (B4) or florpyrauxifen-benzyl (B4a).

8. An herbicidal composition according to claim 1, wherein component B is fluroxypyr (B5).

9. An herbicidal composition according to claim 1, wherein component B is halauxifen (B6) or halauxifen-methyl (B6a).

10. An herbicidal composition according to claim 1, wherein component B is triclopyr (B7).

11. A herbicidal composition according to claim 1, wherein the composition further comprises an additional herbicidal component (C).

12. An herbicidal composition according to claim 11, wherein component (C) is a herbicide selected from acetochlor, metolachlor, S-metolachlor and pyroxasulfone.

13. A method of controlling weeds at a locus comprising applying to the locus of a weed controlling amount of an herbicidal composition according to claim 1.

14. A method of selectively controlling weeds at a locus comprising crop plants and weeds, said method comprising applying to the locus a weed controlling amount of an herbicidal composition according to claim 1.

15. A method according to claim 14, wherein the crop plant comprises an herbicide tolerance trait.

Description

BIOLOGICAL EFFICACY

B1 Post-Emergence Efficacy

[0045] The efficacy of various compositions of the present invention were tested against plants including the following species: Amaranthus palmeri (AMAPA), Amaranthus tuberculatus (AMATA), Echinochloa crus-galli (ECHCG) and Sorghum halepense (SORHA). The compositions are applied post-emergence, and the tests evaluated at certain days-after-application (DAA) as indicated. The tests were evaluated (100=total damage to plant; 0=no damage to plant), and the results are shown below in tables B1 to B6.

TABLE-US-00005 TABLE B1 Combination of Compound of Formula Ic and B1 (2,4-D). SORHA Sorghum halepense - POST - 17DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 73 25 87 50 93 100 98 B1 250 65 12.5 + 250 85 73 12 25 + 250 90 87 3 50 + 250 98 93 5 100 + 250 100 98 2

TABLE-US-00006 TABLE B2 Combination of Compound of Formula Ic and B3g (dicamba dimethylamine salt). AMATA Amaranthus tuberculatus - POST - 20DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 5 25 5 50 5 100 5 B3g 250 90 12.5 + 250 97 91 6 25 + 250 97 91 6 50 + 250 95 91 4 100 + 250 93 91 2

TABLE-US-00007 TABLE B3 Combination of Compound of Formula Ic and B5 (fluroxypyr). AMAPA Amaranthus palmeri - POST - 18DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 25 50 B5 250 79 12.5 + 250 83 79 4 25 + 250 85 79 6 50 + 250 87 79 8

TABLE-US-00008 TABLE B4 Combination of Compound of Formula Ic and halauxifen-methyl (B6a). SORHASorghum halepense - POST - 18DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 50 25 87 B6a 250 41 12.5 + 250 89 70 19 25 + 250 99 92 7

TABLE-US-00009 TABLE B5 Combination of Compound of Formula Ic and triclopyr (B7). ECHCG Echinochloa crus-galli - POST - 18DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 44 25 65 50 91 B7 250 19 12.5 + 250 64 54 10 25 + 250 91 72 19 50 + 250 100 93 7

TABLE-US-00010 TABLE B6 Combination of Compound of Formula Ic and florpyrauxifen-benzyl (B4a). ECHCG Echinochloa crus-galli - POST - 15DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 66 B4a 4 58 12.5 + 4 95 85 10