Herbicidal Compositions

Abstract

The present invention relates to 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, or an agrochemically acceptable ester or salt thereof, selected from the group consisting of: B1 a hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicide: B2 a very long chain fatty acid (VLCFA)-inhibiting herbicide: B3 an acetolactate synthase (ALS)-inhibiting herbicide: B4 a photosystem-II (PS-II) inhibiting herbicide: and B5 a herbicide selected from the group consisting of tetflupyrolimet (B5a), cyclopyrimorate (B5b), bixlozone (B5c) and rimisoxafen (B5d). The present invention further relates to methods of controlling weeds comprising the herbicidal compositions of the invention.

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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, or an agrochemically acceptable ester or salt thereof, selected from the group consisting of: B1a hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicide; B2a very long chain fatty acid (VLCFA)-inhibiting herbicide; B3 an acetolactate synthase (ALS)-inhibiting herbicide; B4a photosystem-II (PS-II) inhibiting herbicide; and B5 a herbicide selected from the group consisting of tetflupyrolimet (B5a), cyclopyrimorate (B5b), bixlozone (B5c) and rimisoxafen (B5d).

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 a HPPD-inhibiting herbicide (B1) is selected from the group consisting of benquitrione (B1a), bicyclopyrone (B1b), dioxopyritrione (B1c), fenquinotrione (B1d), isoxaflutole (B1e), mesotrione (B1f), tembotrione (B1g), topramezone (B1h), 3-(isopropylsulfonylmethyl)-N-(5-methyl-1,3,4-oxadiazol-2-yl)-5-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine-8-carboxamide (B1i) and 2-fluoro-N-(5-methyl-1,3,4-oxadiazol-2-yl)-3-[(R)-propylsulfinyl]-4-(trifluoromethyl)benzamide (B1j).

5. An herbicidal composition according to claim 1, wherein component B is a VLCFA-inhibiting herbicide (B2) selected form the group consisting of acetochlor (B2a), dimethenamid (B2b), dimethenamid-P (B2b1), metolachlor (B2c) S-metolachlor (B2c1)) and pyroxasulfone (B2d).

6. An herbicidal composition according to claim 1, wherein component B is an ALS-inhibiting herbicide (B3) selected from the group consisting of bensulfuron-methyl (B3a), bispyribac-sodium (B3b), chlorimuron-ethyl (B3c), cloransulam (B3d), diclosulam (B3e), flazasulfuron (B3f), florasulam (B3g), halosulfuron-methyl (B3h), imazamox (B3i), imazethapyr (B3j), iodosulfuron-methyl-sodium (B3k), mesosulfuron-methyl (B3l), nicosulfuron (B3m), oxasulfuron (B3n), penoxsulam (B3o), pyriftalid (B3p) and trifloxysulfuron (B3q).

7. An herbicidal composition according to claim 1, wherein component B is a PS-II inhibiting herbicide (B4) selected from the group consisting of ametryn (B4a), amicarbazone (B4b), atrazine (B4c), bromoxynil (B4d), diuron (B4e), hexazinone (B4f), metribuzin (B4g), tebuthiuron (B4h), tebuthylazine (B4i), prometryn (B4j), propanil (B4k) and pyridate (B4l).

8. An herbicidal composition according to claim 1, wherein component B is a herbicide selected from the group consisting of tetflupyrolimet (B5a), cyclopyrimorate (B5b), bixlozone (B5c) and rimisoxafen (B5d).

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

10. An herbicidal composition according to claim 7, wherein component (C) is a herbicide selected from the group consisting of glyphosate, glufosinate, 2,4-D and dicamba.

11. 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.

12. 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.

13. A method according to claim 12, wherein the crop plant comprises an herbicide tolerance trait.

14. A method according to claim 13, wherein the wherein the crop plant comprises an herbicide tolerance trait which provides tolerance to component (B) and/or (C).

15. A method according to claim 12, wherein the crop plant is soybean or cotton.

16. A method according to claim 11, wherein the weeds comprise species selected from the group consisting of Alopecurus sp., Avena sp., Digitaria sp., Echinochloa sp., Eleusine sp., Lolium sp., Setaria sp. and Sorghum sp.

Description

Biological Efficacy

Post-Emergence Efficacy

[0047] The efficacy of various compositions of the present invention were tested against plants including the following species: Amaranthus retroflexus (AMARE), Echinochloa crus-gali (ECHCG), Lolium multiflorum (LOLMU), Setaria faberi (SETFA), and Digitaria insularis (TRCIN). 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 B11 below.

TABLE-US-00005 TABLE B1 Combination of Compound of Formula Ic and B1b (bicyclopyrone). AMARE Amaranthus retroflexus - POST - 13 DAA Treatment Rate g/ha Observed Expected Difference Ic 0.47 0 0.94 0 B1b 0.94 23 1.88 45 0.47 + 0.94 45 23 22 0.94 + 1.88 63 45 18

TABLE-US-00006 TABLE B2 Combination of Compound of Formula Ic and B1d (fenquinotrione). TRICN Digitaria insularis- POST - 16DAA Treatment Rate g/ha Observed Expected Difference Ic 3.125 15 B1d 500 35 1000 43 3.125 + 500 70 45 25 3.125 + 1000 98 51 47

TABLE-US-00007 TABLE B3 Combination of Compound of Formula Ic and B1f (mesotrione). AMARE Amaranthus retroflexus - POST - 13 DAA Treatment Rate g/ha Observed Expected Difference Ic 0.47 10 0.94 0 B1f 3.75 18 0.47 + 3.75 73 26 47 0.94 + 3.75 50 18 32

TABLE-US-00008 TABLE B4 Combination of Compound of Formula Ic and B2a (acetochlor). ECHCG Echinochloa crus-gali - POST - 15DAA Treatment Rate g/ha Observed Expected Difference Ic 3.125 45 6.25 50 12.5 60 B2a 4000 50 3.125 + 4000 35 73 38 6.25 + 4000 43 75 33 12.5 + 4000 63 80 18

TABLE-US-00009 TABLE B5 Combination of Compound of Formula Ic and B2d (pyroxasulfone). ECHCG Echinochloa crus-gali - POST - 15DAA Treatment Rate g/ha Observed Expected Difference Ic 3.125 45 B2d 125 38 250 35 3.125 + 125 53 66 13 3.125 + 250 53 64 12

TABLE-US-00010 TABLE B6 Combination of Compound of Formula Ic and B3c (chlorimuron-ethyl). AMARE Amaranthus retroflexus - POST - 13DAA Treatment Rate g/ha Observed Expected Difference Ic 1.88 7.5 B3c 1.88 88 7.5 83 1.88 + 1.88 100 88 12 1.88 + 7.5 95 84 11

TABLE-US-00011 TABLE B7 Combination of Compound of Formula Ic and B3j (imazethapyr). TRICN Digitaria insularis - POST - 16DAA Treatment Rate g/ha Observed Expected Difference Ic 3.125 15 B3j 8 30 15 53 3.125 + 8 73 41 32 3.125 + 15 78 60 18

TABLE-US-00012 TABLE B8 Combination of Compound of Formula Ic and B3m (nicosulfuron). SETFA Setaria faberi - POST - 13 DAA Treatment Rate g/ha Observed Expected Difference Ic 0.47 3 0.94 0 1.88 0 B3m 0.94 0 1.88 0 3.75 0 0.47 + 0.94 28 3 25 0.94 + 1.88 5 0 5 1.88 + 7.75 73 60 13

TABLE-US-00013 TABLE B9 Combination of Compound of Formula Ic and B4c (atrazine). ECHCG Echinochloa crus-gali - POST - 20DAA Treatment Rate g/ha Observed Expected Difference Ic 3.125 14 B4c 500 60 3.125 + 500 74 66 8

TABLE-US-00014 TABLE B10 Combination of Compound of Formula Ic and B4g (metribuzin). AMARE Amaranthus retroflexus - POST - 13 DAA Treatment Rate g/ha Observed Expected Difference Ic 0.47 10 0.94 0 1.88 0 B4g 7.5 0 0.47 + 7.5 15 10 5 0.94 + 7.5 5 0 5 1.88 + 7.5 10 0 10

TABLE-US-00015 TABLE B11 Combination of Compound of Formula Ic and B5d (rimisoxafen). LOLMU Lolium multiflorum - POST - 15DAA Treatment Rate g/ha Observed Expected Difference Ic 12.5 60 B5d 30 18 12.5 + 30 86 67 19