Herbicidal composition comprising uracil compound as active ingredient

This is a continuation of International Application No. PCT/KR2013/003107 filed on Apr. 12, 2013, which claims priority to Korean Application No. 10-2012-0038002 filed on Apr. 12, 2012. The applications are incorporated herein by reference.

The present invention relates to a herbicidal composition comprising a uracil compound as an active ingredient.

Uracil compounds are known as useful herbicidally active compounds. German Patent Publication No. 714,602, International Patent Publication No. WO 96/07323 and Japanese Patent Laid-Open Publication No. Hei 11-189506 disclose herbicidal compositions comprising a uracil compound as an active ingredient. Meanwhile, Korean Patent No. 1,103,840 registered in the name of the applicant discloses a novel uracil compound and a herbicidal composition comprising the same as an active ingredient.

However, there has been a continued demand for a broad-spectrum herbicidal composition which exhibits a remarkable synergistic effect higher than that of two or more herbicidally active compounds and has selective, semi-selective and/or non-selective activity against monocotyledonous and/or dicotyledonous weeds in various plants.

Accordingly, an object of the present invention is to provide a herbicidal composition having a remarkable synergistic effect, which comprises a herbicidally active compound selected from uracil compounds and another herbicidally active compound.

Another object of the present invention is to provide a broad-spectrum herbicidal composition having selective, semi-selective and/or non-selective activity against monocotyledonous and/or dicotyledonous weeds in various plants, in which the herbicidal composition comprises a herbicidally active compound selected from uracil compounds and another herbicidally active compound.

The present invention provides a herbicidal composition comprising, as active ingredients, a herbicidally active compound and a uracil compound represented by the following formula 1 or an agrochemically acceptable salt thereof:

wherein

R 1 and R 2 are the same or different and represent a hydrogen atom or a C 1 -C 6 alkyl group; R 3 represents a hydrogen atom, a hydroxyl group, a C 1 -C 6 alkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 8 alkoxy group, a C 1 -C 6 haloalkyl group, a C 2 -C 6 haloalkenyl group, a C 1 -C 6 alkoxy C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; R 4 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 haloalkyl group, or a C 1 -C 6 alkoxycarbonyl C 1 -C 6 alkyl group; R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a C 2 -C 6 haloalkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 haloalkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 6 alkoxycarbonyl group, a C 1 -C 6 alkyl group, a C 6 -C 10 aryl C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; X represents O, S, SO, SO 2 , NH, or N(C 1 -C 6 alkyl); Y represents a C 1 -C 6 alkylene group or a C 1 -C 6 haloalkylene group; W represents O, S, NH, or N(C 1 -C 6 alkyl); and Z represents a halogen atom, a cyano group, CONH 2 , or CSNH 2 .

To achieve the above objects, the present invention provides a herbicidal composition comprising, as active ingredients, a herbicidally active compound and a uracil compound represented by the following formula 1 or an agrochemically acceptable salt thereof:

In Formula 1,

R 1 and R 2 are the same or different and represent a hydrogen atom or a C 1 -C 6 alkyl group; R 3 represents a hydrogen atom, a hydroxyl group, a C 1 -C 6 alkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 8 alkoxy group, a C 1 -C 6 haloalkyl group, a C 2 -C 6 haloalkenyl group, a C 1 -C 6 alkoxy C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; R 4 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 haloalkyl group, or a C 1 -C 6 alkoxycarbonyl C 1 -C 6 alkyl group; R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a C 2 -C 6 haloalkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 haloalkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 6 alkoxycarbonyl group, a C 1 -C 6 alkyl group, a C 6 -C 10 aryl C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; X represents O, S, SO, SO 2 , NH, or N(C 1 -C 6 alkyl); Y represents a C 1 -C 6 alkylene group or a C 1 -C 6 haloalkylene group; W represents O, S, NH, or N(C 1 -C 6 alkyl); and Z represents a halogen atom, a cyano group, CONH 2 , or CSNH 2 .

In one embodiment of the present invention, the uracil compound is 3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorphenoxy]-1-oxopropyl}amino]propionic acid methyl ester, or 3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenylthio]-1-oxopropyl}amino]propionic acid methyl ester.

In one embodiment of the present invention, the herbicidally active compound is one or more selected from among amide derivatives, arylheterocycle derivatives, aryloxyphenoxy propionate derivatives, carboxylic acid derivatives, benzothiadiazole derivatives, chloroacetamide derivatives, cyclohexanedione derivatives, diphenyl ether derivatives, urea derivatives, imidazolidinone derivatives, isoxazole derivatives, nicotine anilide derivatives, nitrile derivatives, organic phosphorus compounds, oxyacetamide derivatives, phenoxycathoxylic acid derivatives, pyrazole derivatives, pyridazinone derivatives, pyridine derivatives, pyrimidinyl(thio)benzoate derivatives, sulfonylurea derivatives, tetrazolinone derivatives, thiocarbamate derivatives, triazine derivatives, triazinone derivatives, triazolinone derivatives, triazolopyrimidine derivatives, triketone derivatives, and uracil derivatives. In one embodiment of the present invention, the herbicidally active compound is one or more selected from among 2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methyl-phenyl)-acetamide (acetochlor), 5-(2-chloro-4-trifluoromethyl-phenoxy)-2-nitro-benzoic acid soldium salt (acifluorfen-sodium), 2-chloro-6-nitro-3-phenoxy-benzenamine (aclonifen), 2-chloro-N-(methoxymethyl)-N-(2,6-diethyl-phenyl)-acetamide (alachlor), N-ethyl-N′-iso-propyl-6-methylthio-1,3,5-triazine-2,4-diamine (ametryn), 4-amino-N-(1,1-dimethyl-ethyl)-4,5-dihydro-3-(1-methyl-ethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide (amicarbazone), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(N-methyl-N-methylsulphonyl-sulphamoyl)-urea (amidosulfuron), 1H-1,2,4-triazol-3-amine (amitrole), 6-chloro-4-ethylamino-2-isopropylamino-1,3,5-triazine (atrazine), 2-[2,4-dichloro-5-(2-propinyloxy)-phenyl]-5,6,7,8-tetrahydro-1,2,4-triazolo-[4,3-a]-pyridin-3(2H)-one (azafenidin), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-1-[methyl-4-(2-methyl-2H-tetrazol-5-yl)-1H-pyrazol-5-ylsulphonyl]-urea (azimsulfuron), N-benzyl-2-(4-fluoro-3-trifluoromethyl-phenoxy)-butanamide (beflubutamid), 4-chloro-2-oxo-3(2H)-benzothiazoleacetic acid (benazolin), N-butyl-N-ethyl-2,6-dinitro-4-trifluoromethyl-benzenamine (benfluralin), N-(4,6-dimethoxy-pyrimidin-2-yl)-N-(2-methoxycarbonyl-phenylmethylsulphonly)-urea (bensulfuron), methyl 2-[2-[4-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)phenoxy]methyl]-5-ethyl-phenoxy-propanoate (benzfendizone), 3-(2-chloro-4-methylsulphonyl-benzoyl)-4-phenylthio-bicyclo-[3.2.1]-oct-3-en-2-one (benzobicyclon), ethyl N-benzoyl-N-(3,4-dichloro-phenyl)-DL-alaninate (benzoylprop-ethyl), 3-i-propyl-1H-2,1,3-benzothiadiazin-4(3H)-one (bentazone), methyl 5-(2,4-dichloro-phenoxy)-2-nitro-benzoate (bifenox), 2,6-bis-4,6-dimethyoxy-pyrimidin-2-yl-oxy)-benzoic acid sodium salt (bispyribac-sodium), 5-bromo-6-methyl-3-(1-methyl-propyl)-2,4(1H,3H)pyrimidinedione (bromacil), 2-bromo-3,3-dimethyl-N-(1-methyl-1-phenyl-ethyl)-butanamide (bromobutide), O-(2,4-dinitro-phenyl) 3,5-dibromo-4-hydroxy-benzaldehyde-oxime (bromofenoxim), 3,5-dibromo-4-hydroxy-benzonitrile (bromoxynil), N-butoxymethyl-2-chloro-N-(2,6-diethyl-phenyl)-acetamide (butachlor), [1,1-dimethyl-2-oxo-2-(2-propenyloxy)]-ethyl 2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-benzoate (butafenacil-allyl), 2-(1-ethoximino-propyl)-3-hydroxy-5-[2,4,6-trimethyl-3-(1-oxo-butyl)-phenyl]-2-cyclohexen-1-one (butroxydim), S-ethyl bis-(2-methyl-propyl)-thiocarbamate (butylate), N,N-diethyl-3-(2,4,6-trimethyl-phenylsulphonyl)-1H-1,2,4-triazole-1-carboxamide (cafenstrole), 2-1-[(3-chloro-2-propenyl)-oxy-imino-propyl]-3-hydroxy-5-(tetrahydro-2H-pyran-4-yl)-2-cyclohexen-1-one (caloxydim, tepraloxydim), 2-(4-chloro-2-fluoro-5-(2-chloro-2-ethoxycarbonyl-ethyl)-phenyl)-4-difluoromethyl-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (carfentrazone-ethyl), 2,4-dichloro-1-(3-methoxy-4-nitro-phenoxy)-benzene (chlomethoxyfen), 3-amimo-2,5-dichloro-benzoic acid (chloramben), N-(4-chloro-6-methoxy-pyrimdin-2-yl)-N-(2-ethoxycarbonyl-phenylsulphonyl)-urea (chlorimuron-ethyl), 1,3,5-trichloro-2-(4-nitro-phenoxy)-benzene (clomitrofen), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N-(2-chloro-phenylsulphonyl)-urea (chlorsulfuron), N-(3-chloro-4-methylphenyl)-N,N-dimethyl-urea (chlortoluron), ethyl 2-chloro-3-[2-chloro-5-(1,3,4,5,6,7-hexahydro-1,3-dioxo-2H-isoindol-2-yl)-phenyl]-2-propanoate (cinidon-ethyl), N-(4,6-dimethoxy-1,3,5-triazin-2-yl)-N′-(2-(2-methoxy-ethoxy)-phenylsulphonyl)-urea (cinosulfuron), 2-[1-[2-4-chloro-phenoxy)-propoxyamino]butyl]-5-(tetrahydro-2H-thiopyran-3-yl)-1,3-cyclohexanedione (clefoxydim), (E,E)-(+)-2-[1-[[(3-chloro-2-propenyl)-oxy]-imino]-propyl]-3-hydroxy-2-cyclohexen-1-one (clethodim), prop-2-inyl (R)-2-[4-(5-chloro-3-fluoro-pyridin-2-yl-oxy)-phexoxyl]-propanoate (clodinafop-propargyl), 3,6-dichloro-pyridine-2-carboxylic acid (clopyralid), methyl 3-chloro-2-[(5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidin-2-yl-sulphonyl)-amino]-benzoate (cloransulam-methyl), 2-chloro-4-ethylamino-6-(1-cyano-1-methyl-ethylamino)-1,3,5-triazine (cyanazine), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(2-cyclopropylcarbonyl-phenylsulphonyl)-urea (cyclosulfamuron), 2-(1-ethoximinobutyl)-3-hydroxy-5-(tetrahydro-2H-thiopyran-3-yl)-2-cyclohexen-1-one (cycloxydim), butyl (R)-2-[4-(4-cyano-2-fluoro-phenoxy)-phenoxy]-propanoate (cyhalofop-butyl), 2,4-dichloro-phenoxyacetic acid (2,4-D), 3,6-dichloro-2-methoxy-benzoic acid (dicamba), (R)-2-(2,4-dichloro-phenoxy)-propanoic acid (dichlorprop-P), methyl-2-[4-(2,4-dichloro-phenoxy)-phenoxy]-propanoate (diclofop-methyl), N-(2,6-dichloro-phenyl)-5-ethoxy-7-fluoro-[1,2,4]-triazolo-[1,5-c]-pyrimidine-2-sulphonamide (diclosulam), 1,2-dimethyl-3,5-diphenyl-1H-pyrazolium methylsulphate (difenzoquat), N-(2,4-difluoro-phenyl)-2-(3-trifluoromethyl-phenoxy)-pyridine-3-carboxamide (diflufenican), 2-[1-(3,5-difluoro-phenyl)-amino-carbonyl-hydrazono-ethyl]-pyridine-3-carboxylic acid (diflufenzopyr), S-(1-methyl-1-phenyl-ethyl) 1-piperidine-carbothioate (dimepiperate), 2-chloro-N-(2,6-dimethyl-phenyl)-N-(2-methoxy-ethyl)-acetamide (dimethachlor), (S)2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methyl-ethyl)-acetamide (S) (dimethenamid), 2-amino-4-(1-fluoro-1-methyl-ethyl)-6-(1-methyl-2-(3,5-dimethyl-phenoxy)-ethylamino)-1,3,5-triazine (dimexyflam), N3,N3-diethyl-2,4-dinitro-6-trifluoromethyl-1,3-diamino-benzene (dinitramine), 6,7-dihydro-dipyrido[1,2-a:2,1-c]pyrazinediium (diquat), S,S-dimethyl 2-difluoromethyl-4-i-butyl-6-trifluoromethyl-pyridine-3,5-dicarbothioate (dithiopyr), N′-(3,4-dichloro-phenyl)-N,N-dimethyl-urea (diuron), 2-2-(3-chloro-phenyl)-oxiranylmethyl-2-ethyl-1H-indene-1,3(2H)-dione (epropodan), S-ethyl di-propylthiocarbamate (EPTC), S-(phenylmethyl) N-ethyl-N-(1,2-dimethylpropyl)-thiocarbamate (esprocarb), N-ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-trifluoromethyl-benzenamine (ethalfluralin), 2-ethoxy-1-methyl-2-oxoethyl (S)-2-chloro-5-(2-chloro-4-trifluoromethyl-phenoxy)-benzoate (ethoxyfen), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(2-ethoxy-phenoxysulphonyl)-urea (ethoxysulfuron), ethyl (R)-2-[4-(6-chloro-benzoxazol-2-yl-oxy)-phenoxy]-propanoate (fenoxaprop-(P)-ethyl), 4-(2-cholor-phenyl)-N-cyclohexyl-N-ethyl-4,5-dihydro-5-oxo-1H-tetrazole-1-carboxamide (fentrazamid), isopropyl N-benzoyl-N-(3-chloro-4-fluoro-phenyl)-DL-alaninate (flamprop-isopropyl), isopropyl N-benzoyl-N-(3-chloro-4-fluoro-phenyl)-L-alaninate (flamprop-isopropyl-L), methyl N-benzoyl-N-(3-chloro-4-fluoro-phenoxy)-DL-alaninate (flamprop-methyl), N-(2,6-difluoro-phenyl)-8-fluoro-5-methoxy-[1,2,4]-triazolo-[1,5-c]-pyrimidine-2-sulphonamide (florasulam), butyl (R)-2-[4-(5-trifluoromethyl-pyridin-2-yl-oxy)-phenoxy]-propanoate (fluazifop, -butyl, P-butyl), i-propyl 5-(4-bromo-1-methyl-5-trifluoromethyl-1H-pyrazol-3-yl)-2-chloro-4-fluoro-benzoate (fluazolate), 4,5-(dihydro)-3-methoxy-4-methyl-5-oxo-N-[(2-trifluoromethoxy-phenyl)-sulphonyl]-1H-1,2,4-triazole-1-carboxamide sodium salt (flucarbazone-sodium), N-(4-fluoro-phenyl)-N-i-propyl-2-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl-oxy)-acetamide (flufenacet), N-(2,6-difluoro-phenyl)-5-methiyl-1,2,4-triazolo[1,5-a]-pyrimidine-2-sulphonamide (flumetsulam), pentyl [2-chloro-4-fluoro-5-(1,3,4,5,6,7-hexahydro-1,3-dioxo-2H-isoindol-2-yl)-phenoxy]-acetate (flumiclorac-pentyl), 2-[7-fluoro-3,4-dihydro-3-oxo-4-(2-propinyl)-2H-1,4-benzoxazin-6-yl]-4,5,6,7-tetrahydro-1H-isoindole-1,3-dione (flumioxazin), 2-[4-chloro-2-fluoro-5-(1-methyl-2-propinyl)-oxy]-phenyl-4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione (flumipropyn), 3-chloro-4-chloromethyl-1-(3-trifluoromethyl-phenyl)-2-pyrrolidinone (fluorochloridone), ethoxycarbonylmethyl 5-(2-chloro-4-trifluoromethyl-phenoxy)-2-nitro-benzoate (fluoroglycofen-ethyl), 1-(4-chloro-3-(2,2,3,3,3-pentafluoro-propoxymethyl)-phenyl)-5-phenyl-1H-1,2,4-triazole-3-carboxamide (flupoxam), 1-isopropyl-2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidyl)-benzoate (flupropacil), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(3-methoxycarbonyl-6-trifluoromethyl-pyridin-2-yl-sulphonyl)-urea sodium salt (flupyrsulfuron-methyl-sodium), 9-hydroxy-9H-fluorene-9-carboxylic acid (flurenol), (4-amino-3,5-dichloro-6-fluoro-pyridin-2-yl-oxy)-acetic acid (2-butoxy-1-methyl-ethyl ester, 1-methyl-heptyl ester) (fluroxypyr, -butoxypropyl, -meptyl), 5-methylamino-2-phenyl-4-(3-trifluoromethyl-phenyl)-3(2H)-furanone (flurtamone), methyl [(2-chloro-4-fluoro-5-(tetrahydro-3-oxo-1H,3H-[1,3,4]-thiadiazolo-[3,4-a]-pyridazin-1-yliden)-amino)-phenyl-thioacetate (fluthiacet-methyl), 5-(2-chloro-4-trifluoromethyl-phenoxy)-N-methylsulphonyl-2-nitro-benzamide (fomesafen), 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)-amino]-carbonyl]-amino]-sulphonyl]-4-formylamino-N,N-dimethyl-benzamide (foramsulfuron), 2-amino-4-(hydroxymethylphosphinyl)-butanoic acid ammonium salt (glufosinate-ammonium), N-phosphonomethyl-glycine (isopropylammonium salt) (glyphosate, isopropylammonium), (R)-2-[4-(3-chloro-5-trifluoromethyl-pyridin-2-yl-oxy)-phenoxy]-propanoci acid (methyl ester, 2-ethoxy-ethyl ester, butyl ester) (haloxyfop, -methyl, P-methyl, -ethoxyethyl, -butyl), 3-cyclohexyl-6-dimethylamino-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione (hexazinone), methyl 2-(4,5-dihydro-4-methyl-4-isopropyl-5-oxo-1H-imidazol-2-yl)-4-methyl-benzoate (imazamethabenz-methyl), 2-(4,5-dihydro-4-methyl-4-isopropyl-5-oxo-1H-imidazol-2-yl)-5-methyl-pyridine-3-carboxylic acid (imazamethapyr), 2-(4,5-dihydro-4-methyl-4-isopropyl-5-oxo-1H-imidazol-2-yl)-5-methoxymethyl-pyridine-3-carboxylic acid (imazamox), 2-(4,5-dihydro-4-methyl-4-isopropyl-5-oxo-1H-imidazoi-2-yl)-quinoline-3-carboxylic acid (imazaquin), 2-(4,5-dihydro-4-methyl-4-i-propyl-5-oxo-1H-imidazol-2-yl)-5-ethyl-pyridine-3-carboxylic acid (imazethapyr), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(2-chloro-imidazo-[1,2-a]-pyridin-3-yl-sulphonyl)urea (imazosulfuron), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(5-iodo-2-methoxycarbonyl-phenylsulphonyl)-urea sodium salt (iodosulfuron-methyl-sodium), 4-hydroxy-3,5-diiodo-benzonitrile (ioxynil), N,N-dimethyl-N′-(4-isopropyl-phenyl)-urea (isoproturon), N-(3-(1-ethyl-1-methyl-propyl)-isoxazol-5-yl)-2,6-dimethoxy-benzamide (isoxaben), (4-chloro-2-methylsulphonyl-phenyl)-(5-cyclopropyl-isoxazol-4-yl)-methanone (isoxachlortole), (5-cyclopropyl-isoxazol-4-yl)-(2-methylsulphonyl-4-trifluoromethyl-phenyl)-methanone (isoxaflutole), 2-[2-[4-[(3,5-dichloro-2-pyridinyl)-oxy]-phenoxy]-1-oxo-propyl]-isoxazolidine (isoxapyrifop), (2-ethoxy-1-methyl-2-oxo-ethyl)-5-(2-chloro-4-trifluoromethyl-phenoxy)-2-nitro-benzoate (lactofen), N-(3,4-dichloro-phenyl)-N-methoxy-N-methyl-urea (linuron), (4-chloro-2-methyl-phenoxy)-acetic acid (MCPA), (±)-2-(4-chloro-2-methyl-phenoxy)-proponic acid (mecoprop), 2-(2-benzothiazolyloxy)-N-methyl-N-phenyl-acetamide (mefenacet), methyl [[[[2-(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulphonyl]-4-[[(methylsulphonyl)amino]methyl]-benzoate (mesosulfuron), 2-(4-methylsulphonyl-2-nitro-benzoyl)-1,3 -cyclohexanedione (mesotrione), 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5(4H)-one (metamitron), 2-chloro-N-(2,6-dimethyl-phenyl)-N-(1H-pyrazol-1-yl-methyl)-acetamide (metazachlor), N′-(4-(3,4-dihydro-2-methoxy-2,4,4-trimethyl-2H-1-benzopyran-7-yl-oxy)-phenyl)-N-methoxy-N-methyl-urea (metobenzuron), N′-(4-bromophenyl)-N-methoxy-N-methyl urea (metobromuron), (S)-2-chloro-N-(2-ethyl-6-methyl-phenyl)-N-(2-methoxy-1-methyl-ethyl)acetamide (metolachlor, S-metolachlor), N-(2,6-dichloro-3-methyl-phenyl)-5,7-dimethoxy-1,2,4-triazolo[1,5-a]-pyrimidine-2-sulphonamide (metosulam), N′-(3-chloro-4-methoxy-phenyl)-N,N-di-ethyl-urea (metoxuron), 4-amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5(4H)-one (metribuzin), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(2-methoxycarbonyl-phenylsulphonyl)-urea (metsulfuron-methyl), S-ethyl-hexahydro-1H-azepine-1-carbothioate (molinate), 2-(2-naphthyloxy)-N-phenyl-propanamide (naproanilide), N-butyl-N′-(3,4-dichloro-phenyl)-N-methyl-urea (neburon), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(3-dimethylcarbamoyl-pyridin-2-yl-sulphonyl)-urea (nicosulfuron), 4-chloro-5-methylamino-2-(3-trifluoromethyl-phenyl)-3(2H)-pyridazinone (norflurazon), S-(2-chloro-benzyl)-N,N-diethyl-thiocarbamate (orbencarb), 4-dipropylamino-3,5-dinitro-benzenesulphonamide (oryzalin), 3-[2,4-dichloro-5-(2-propinyloxy)-phenyl-5]-(t-butyl)-1,3,4-oxadiazol-2(3H)-one (oxadiargyl), 3-2,4-dichloro-5-(1-methyl-ethoxy)-phenyl-5-(t-butyl)-1,3,4-oxadiazol-2(3H)-one (oxadiazon), N-(4,6-dimethyl-pyrimidin-2-yl)-N′-(2-oxetan-3-yl-oxycarbonyl-phenylsulphonyl)-urea (oxasulfuron), 3-[1-(3,5-dichloro-phenyl)-1-i-propyl]-2,3-dihydro-6-methyl-5-phenyl-4H-1,3-oxazin-4-one (oxaziclomefone), 2-chloro-1-(3-ethoxy-4-nitro-phenoxy)-4-trifluoromethylbenzene (oxyfluorfen), 1,1′-dimethyl-4,4′-bipyridinium (paraquat), 1-amino-N-(1-ethyl-propyl)-3,4-dimethyl-2,6-dinitro-benzene (pendimethalin), 4-(t-butyl)-N-(1-ethyl-propyl)-2,6-dinitro-benzenamine (pendralin), 4-amino-3,5,6-trichloro-pyridime-2-carboxylic acid (picloram), N-(4-fluoro-phenyl)-6-(3-trifluoromethyl-phenoxy)-pyridine-2-carboxamide (picolinafen), 2-chloro-N-(2,6-diethyl-phenyl)-N-(2-propoxy-ethyl)-acetamide (pretilachlor), N-(4,6-bis-difluoromethoxy-pyrimidin-2-yl)-N′-(2-methoxycarbonyl-phenylsulphonyl)-urea (primisulfuron-methyl), 1-chloro-N-2-chloro-4-fluoro-5-[(6S,7aR)-6-fluorotetrahydro-1,3-dioxo-1H-pyrrolo[1,2-c]imidazol-2(3H)-yl-phenyl-methanesulphonamide (profluazol), 2-chloro-N-isopropyl-N-phenyl-acetamide (propachlor), N-(3,4-dichlorophenyl)-propanamide (propanil), (R)-[2-[[(1-methylethylidene)-amino]-oxy]-ethyl]-2-[4-(6-chloro-2-quinoxalinyloxy)-phenoxy]-propanoate (propaquiza-fop), 2-chloro-N-(2-ethyl-6-methyl-phenyl)-N-[(1-methyl-ethoxy)-methyl]-acetamide (propisochlor), methyl [[[2-(4,5-dihydro-4-methyl-5-oxo-3-propoxy-1H-1,2,4-triazol-1-yl)-carbonyl]-amino]-sulphonyl]-benzoate sodium salt (propoxycarbazone-sodium), S-phenylmethyl N,N-dipropyl-thiocarbamate (prosulfocarb), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(2-(3,3,3-trifluror-propyl)-phenylsulphonyl)-urea (prosulfuron), elhyl [2-chloro-5-(4-chloro-5-difluoromethoxy-1-methyl-1H-pyrazol-3-yl)-4-fluoro-phenoxy]-acetate (pyraflufen-ethyl), 1-(3-chloro-4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyridin-2-yl)-5-(methyl-2-propinylamino)-1H-pyrazole-4-carbonitrile (pyrazogyl), 4-(2,4-dichloro-benzoyl)-1,3-dimethyl-5-(4-methyl-phenylsulphonyloxy)-pyrazole (pyrazolate), 4-(2,4-dichloro-benzoyl)-1,3-dimethyl-5-(phenylcarbonylmethoxy)-pyrazole (pyrazoxyfen), N′-(4,6-dimethoxy-pyrimidin-2-yl)-N-(4-ethoxycarbonyl-1 methyl-pyrazol-5-yl-sulphonyl)-urea (pyrazosulfuron-ethyl), O-[2,6-bis-(4,6-dimethoxy-pyrimidin-2-yl-oxy)-benxoyl]diphenylmethanone-oxime (pyribenzoxim), 6-chloro-3-phenyl-4-pyridazinol (pyridafol), O-(6-chloro-3-phenyl-pyridazin-4-yl) S-octyl thiocarbonate (pyridate), 6-chloro-3-phenyl-pyridazin-4-ol (pyridatol), 7-[(4,6-dimethoxy-2-pyrimidinyl)-thio]-3-methyl-1(3H)-iso-benzofuranone (Pyriftalid), methyl 2-(4,6-dimethoxy-pyrimidin-2-yl-oxy)-benzoate (pyriminobac-methyl), 2-chloro-6-(4,6-dimethoxy-pyrimidin-2-ylthio)-benzoic acid sodium salt (pyrithiobac-sodium), 3,7-dichloro-quinoline-8-carboxylic acid (quinchlorac), 7-chloro-3-methyl-quinoline-8-carboxylic acid (quinmerac), 2-[4-(6-chloro-2-quinoxalinyloxy)-phenoxy]-propanic acid (ethyl-ester, tetrahydro-2-furanyl-methyl ester) (quizalofop, -ethyl, P-ethyl, P-tefuryl), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(3-ethylsulphonyl-pyridin-2-yl-sulphonyl)-urea (rimsulfuron), 2-(1-ethoximinobutyl)-5-(2-ethylthiopropyl)-3-hydroxy-2-cyclohexen-1-one (sethoxydim), 6-chloro-2,4-bis-ethylamino-1,3,5-triazine (simazin), 2-(2-chloro-4-methylsulphonyl-benzoyl)-cyclohexane-1,3-dione (sulcotrione), 2-(2,4-dichloro-5-methylsulphonylamino-phenyl)-4-difluoromethyl-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (sulfentrazone), methyl [[[[2-(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulphonyl]-benzoate (sulfometuron-methyl), N-phosphonomethyl-glycine-trimethylsulphonium (sulfonate), N-(4,6-dimethoxy-pyrimidin-2-yl)-N′-(2-ethylsulphonyl)-imidazo[1,2-a]pyridine-3-sulphonamide (sulfosulfuron), 6-chloro-4-ethylamino-2-tert-butylamino-1,3,5-triazine (terbuthylazine), 2-tert-butylamino-4-ethylamino-6-methylthio-1,3,5-triazine (terbutryn), 2-chloro-N-(2,6-dimethyl-phenyl)-N-(3-methoxy-2-thienyl-methyl)-acetamide (thenylchlor), methyl 2-difluoromethyl-5-(4,5-dihydro-thiazol-2-yl)-4-(2-methyl-propyl)-6-trifluoromethyl-pyridine-3-carboxylate (thiazopyr), 6-(6,7-dihydro-6,6-dimethyl-3H,5H-pyrrolo[2,1-c]-1,2,4-thiadiazol-3-ylideneamino)-7-fluoro-4-(2-propinyl)-2H-1,4-benzoxazin- 3(4H)-one (thidiazimin), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(2-methoxy-carbonyl-thien-3-yl-sulphonyl)-urea (thifensulfuron-methyl), 2-(ethoximino-propyl)-3-hydroxy-5-(2,4,6-trimethyl-phenyl)-2-cyclohexen-1-one (tralkoxydim), S-(2,3,3-trichloro-2-propenyl)diisopropylcarbamothioate (triallate), N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-[2-(2-chloro-ethoxy)-phenylsulphonyl-urea] (triasulfuron), N-methyl-N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N′-(2-methoxycarbonyl-phenylsulphonyl)-urea (tribenuron-methyl), (3,5,6-trichloro)-pyridin-2-yl-oxy-acetic acid (triclopyr), 2-(3,5-dichloro-phenyl)-2-(2,2,2-trichloro-ethyl)-oxiane (tridiphane), N-[[(4,6-dimethoxy-2-pyrimidinyl)-amino]-carbonyl]-3-(2,2,2-trifluoro-ethoxy)-2-pyridinesulphonamide sodium salt (trifloxysulfuron), 1-amino-2,6-dinitro-N,N-dipropyl-4-trifluoromethyl-benzene (trifluralin), N-[4-dimethylamino-6-(2,2,2-trifluoro-ethoxy)-1,3,5-triazin-2-yl]-N′-(2-methoxycarbonyl-phenylsulphonyl)-urea (triflusulfuron-methyl), N-(4-methoxy-6-trifluoromethoxy-1,3,5-triazin-2-yl)-N′-(2-trifluoromethyl-phenylsulphonyl)-urea (tritosulfuron), N-[[(4,6-dimethoxy-2-pyrimidinyl)-amino]-carbonyl]-3-(N-methyl-N-methylsulphonyl-amino)-2-pyridinesulphonamide, 4-[4,5-dihydro-4-methyl-5-oxo-(3-trifluoromethyl)-1H-1,2,4-triazol-1-yl]-2-[(ethylsulphonyl)amino]-5-fluoro-benzenecarbothioamide, 4-dichloroacetyl-1-oxa-4-aza-spiro[4,5]-decane (AD-67), 1-dichloroacetyl-hexahydro-3,3,8a-trimethylpyrrolo[1,2-a]-pyrimidin-6(2H)-one (BAS-145138), 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine (benoxacor), 1-methyl-hexyl 5-chloro-quinoxalin-8-oxy-acetate (cloquintocet-mexyl), α-(cyano-methoximino)-phenylacetonitrile (cyometrinil), 2,4-dichlorophenoxy-acetic acid (2,4-D), 2,2-dichloro-N-(2-oxo-2-(2-propenylamino)-ethyl)-N-(2-propenyl)-acetamide (DKA-24), 2,2-dichloro-N,N-di-2-propenyl-acetamide (dichlormid), N-(4-methyl-phenyl)-N′-(1-methyl-1-phenyl-ethyl)-urea (dymron), 4,6-dichloro-2-phenyl-pyrimidine (fenclorim), ethyl 1-(2,4-dichloro-phenyl)-5-trichloromethyl-1H-1,2,4-triazole-3-carboxylate (fenchlorazol-ethyl), phenylmethyl 2-chloro-4-trifluoromethyl-thiazole-5-carboxylate (flurazole), 4-chloro-N-(1,3-dioxolan-2-yl-methoxy)-α-trifluoro-acetophenone oxime (fluxofenim), 3-dichloroacetyl-5-(2-furanyl)-2,2-dimethyl-oxazolidine (furilazole, MON-13900), ethyl 4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylate (isoxadifen-ethyl), (4-chloro-2-methyl-phenoxy)-acetic acid (MCPA), (±)-2-(4-chloro-2-methylphenoxy)propanoic acid (mecoprop), diethyl 1-(2,4-dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylate (mefenpyr-diethyl), 2-dichloromethyl-2-methyl-1,3-dioxolane (MG-191), 1,8-naphthalic anhydride, α-(1,3-dioxolan-2-yl-methoximino)-phenylacetonitrile (oxabeninil), 2,2-dichloro-N-(1,3-dioxolan-2-yl-methyl)-N-(2-propenyl)-acetamide (PPG-1292), 3-dichloroacetyl-2,2,5-trimethyl-oxazolidine (R-29148), N-cyclopropyl-4-[[(2-methoxy-5-methyl-benzoyl)-amino]-sulphonyl]-benzamide, N-[(4-methylaminocarbonylamino)-phenyl]-sulphonyl-2-methoxy-benzamide.

In one embodiment of the present invention, the herbicidally active compound is one or more selected from among 2,4-D, bensulfuron, bentazone, bispyibac-sodium, bromoxynil, cafenstrole, chloridazon, clethodim, clodinafop, dicamba, diflufenican, fenoxaprop, florasulam, fluazifop, fluefenacet, fluroxypyr, glufosinate, glyphosate, haloxyfop, iodosulfuron, isoproturon, isoxaflutole, MCPA, MCPB, mecoprop, mesosulfuron, metamifop, metsulfuron, picloram, pinoxaden, propanil, pyrazosulfuron, quinchlorac, tralkoxydim, triclopyr, trifloxysulfuron, acetochlor, alachlor, amicarbazone, atrazine, bromacil, carfentrazone-ethyl, chlorimuron-ethyl, clodinafop-propargyl, cyanazine, diclosulam, dimethenamid, S-dimethenamid, diuron, EPTC, fenoxaprop-(P)-ethyl, fentrazamid, flucarbazone-sodium, flufenacet, flurmetsulam, glufosinate-ammonium, glyphosate-isopropylammonium, imazamox, imazaquin, imazethapyr, isoxaflutole, mesotrione, metolachlor, S-metolachlor, metosulam, metribuzin, nicosulfuron, norflurazon, pendimethalin, propoxycarbazone-sodium, rimsulfuron, simazin, sulfometuron-methyl, sulcotrion, sulfentrazone, sulfosate, terbuthylazine, thifensulfuron-methyl, trifluralin, 4-[4,5-dihydro-4-methyl-5-oxo-(3-trifluoromethyl)-1H-1,2,4-triazol-1-yl]-2-[(ethylsulfonyl)amino]-5-fluoro-benzenecarbothioamide, 1-methyl-hexyl 5-chloro-quinoxalin-8-oxy-acetate (cloquintocet-mexyl), ethyl 4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylate (isoxadifen-ethyl), diethyl 1-(2,4-dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylate (mefenpyr-diethyl), 4-dichloroacetyl-1-oxa-4-aza-spiro[4.5]-decane (AD-67), 1-dichloroacetyl-hexahydro-3,3,8a-trimethylpyrrolo[1,2-a]-pyrimidin-6(2H)-one (BAS-145138), 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine (benoxacor), 3-dichloroacetyl-5-(2-furanyl)-2,2-dimethyl-oxazolidine (furilazole, MON-13900), and 3-dichloroacetyl-2,2,5-trimethyl-oxazolidine (R-29148).

In one embodiment of the present invention, the herbicidal composition further comprises a solid or liquid diluent and surface-active agent. In one embodiment of the present invention, the herbicidally active compound is contained in an amount of 0.01-1,000 parts by weight based on 1 part by weight of the uracil compound represented by formula 1. In another embodiment, the herbicidally active compound is contained in an amount of 0.02-500 parts by weight based on 1 part by weight of the uracil compound represented by formula 1. In still another embodiment, the herbicidally active compound is contained in an amount of 0.05-100 parts by weight based on 1 part by weight of the uracil compound represented by formula 1. In one embodiment of the present invention, said diluent or surface-active agent is contained in an amount of 0.1-99.9 wt % based on the total weight of the composition. In one embodiment of the present invention, the herbicidal composition is in the form of wettable powder, suspensions, emulsifible concentrates, emulsions, microemulsions, soluble concentrates, dispersible concentrates, water dispersible granules, granules, powder, suspension concentrates, water floating granules, or tablets. The active ingredients further include at least one of acetyl-CoA carboxylase inhibitors (ACC), acetolactate synthase inhibitors (ALS), amides, auxin herbicides, auxin transport inhibitors, carotenoid biosynthesis inhibitors, enolpyruvylshikimate 3-phosphate synthase inhibitors (EPS), glutamine synthetase inhibitors, lipid biosynthesis inhibitors, mitosis inhibitors, protoporphyrinogen IX oxidase inhibitors, photosynthesis inhibitors, synergists, growth substances, cell wall biosynthesis inhibitors, and other known herbicides. In one embodiment of the present invention, the herbicidal composition is nonselective. In one embodiment of the present invention, the herbicidal composition is used in dhy-field farming or paddy field farming, and in another embodiment of the present invention, the herbicidal composition is used in paddy field farming.

Agrochemical formulations contain the herbicidal composition of the present invention in an amount of 0.1-95 wt %, and preferably 0.5-90 wt %.

These formulations are produced in a known manner, for example by mixing the active compounds with extenders, that is, liquid solvents and/or solid carriers, optionally with the use of surface-active agents, that is, emulsifying agents and/or dispersing agents, and/or foam-forming agents.

The surface-active agent that is used in the present invention is an amphiphilic material having high surfactant activity and containing both hydrophilic and lipophilic molecules. It has excellent cleansing, dispersing, emulsifying, solubilizing, wetting, stetilizing, foaming and penetrating abilities, and thus acts to wet, disintegrate, disperse and emulsify the active ingredients so that the effects of the active ingredients are effectively exhibited. The surface-active agent may be one or a mixture of two or more selected from among anionic surface-active agents, including a sodium or calcium salt of a sulfonate, such as alkyl(C 8 -C 12 )benzene sulfonate, alkyl(C 3 -C 6 )naphthalene sulfonate, dialkyl(C 3 -C 6 )naphthalene sulfonate, dialkyl(C 8 -C 12 )sulfosuccinate, lignin sulfonate, naphthalene sulfosuccinate formalin concentrates, alkyl(C 8 -C 12 )naphthalene sulfonate formalin concentrates, or polyoxyethylenealkyl(C 8 -C 12 )phenyl sulfonate, a sodium or calcium salt of a sulfate, such as alkyl(C 8 -C 12 )sulfate, polyoxyethylenealkyl(C 8 -C 12 )sulfate, or polyoxyethylenealkyl(C 8 -C 12 )phenyl sulfate, or a sodium or calcium salt of a succinate, such as polyoxyalkylene succinate, and nonionic surface-active agents, such as polyoxyethylenealkyl(C 8 -C 12 )ether, polyoxyethylenealkyl(C 8 -C 12 )phenyl ether, or polyoxyethylenealkyl(C 8 -C 12 )phenyl polymers.

The diluent that is used in the present invention may be either a solid diluent or a liquid diluent. For a solid diluent, one having a high water-absorbing ability is particularly preferably used to prepare wettable powder. For a liquid diluent, one that is stable without phase separation from a solvent even at 0° C. is preferred. Examples of the liquid diluent that may be used in the present invention include water, toluene, xylene, petroleum ether, vegetable oil, acetone, methyl ethyl ketone, cyclohexanone, acid anhydride, acetonitrile, acetophenone, amyl acetate, 2-butanone, butylene carbonate, chlorobenzene, cyclohexane, cyclohexanol, alkyl ester of acetic acid, diacetone alcohol, 1,2-dichloropropane, diethanolamine, p-diethylbenzene, diethylene glycol, diethylene glycol abietate, diethylene glycol butyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, N,N-dimethylformamide, dimethyl sulfoxide, 1,4-dioxane, dipropylene glycol, dipropylene glycol methyl ether, dipropylene glycol dibenzoate, diproxitol, alkylpyrrolidone, ethyl acetate, 2-ethylhexanol, ethylene carbonate, 1,1,1-trichloroethane, 2-heptanone, .alpha.-pinene, D-limonene, ethyl lactate, ethylene glycol, ethylene glycol butyl ether, ethylene glycol methyl ether, gamma-butyrolactone, glycerol, glycerol acetate, glycerol diacetate, glycerol triacetate, hexadecane, hexylene glycol, isoamyl acetate, isobornyl acetate, isooctane, isophorone, isopropylbenzene, isopropyl myristate, lactic acid, laurylamine, mesityl oxide, methoxypropanol, methyl isoamyl ketone, methyl isobutyl ketone, methyl laurate, methyl octanoate, methyl oleate, methylene chloride, m-xylene, n-hexane, n-octylamine, octadecanoic acid, octylamine acetate, oleic acid, oleylamine, o-xylene, phenol, polyethylene glycol (PEG), propionic acid, propyl lactate, propylene carbonate, propylene glycol, propylene glycol methyl ether, p-xylene, triethyl phosphate, triethylene glycol, xylenesulfonic acid, paraffin, mineral oil, trichloroethylene, perchloroethylene, ethyl acetate, amyl acetate, butyl acetate, propylene glycol methyl ether, diethylene glycol methyl ether, methanol, ethanol, isopropanol and high-molecular-weight alcohol, e.g., amyl alcohol, tetrahydrofurfuryl alcohol, hexanol, octanol, ethylene glycol, propylene glycol and glycerol, N-methyl-2-pyrrolidone, or the like. The solid diluent may be talc, titanium dioxide, agalmatolite clay, silica, attapulgite clay, diatomite, limestone, calcium carbonate, bentonite, calcium montmorillonite, cottonseed hull, wheatmeal, soybean flour, pumice, wood flour, nutshell, lignin, and the like.

If water is used as an extender, organic solvents can, for example, also be used as auxiliary solvents. Liquid solvents which are mainly suitable are: aromatics such as xylene, toluene or alkylnaphthalenes, chlorinated aromatics and chlorinated aliphatic hydrocarbons such as chlorobenzenes, chloroethylenes or methylene chloride, aliphatic hydrocarbons such as cyclohexane or paraffins, for example petroleum fractions, mineral and vegetable oils, alcohols such as butanol or glycol as well as their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents such as dimethylformamide and dimethyl sulfoxide, and water.

Suitable solid carriers are, for example, ammonium salts and ground natural minerals such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, and ground synthetic minerals such as finely divided silica, alumina and silicates. Suitable solid carriers for granules are, for example, crushed and fractionated natural rocks such as calcite, marble, pumice, sepiolite and dolomite, or else synthetic granules of inorganic and organic meals, and granules of organic material such as sawdust, coconut shells, maize cobs and tobacco stalks. Suitable emulsifiers and/or foam-formers are, for example, nonionic and anionic emulsifiers, such as polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, for example alkylaryl polyglycol ethers, alkylsulfonates, alkyl sulfates, arylsulfonates and protein hydrolyzates. Suitable dispersants are, for example, lignin-sulfite waste liquors and methylcellulose. Adhesives such as carboxymethylcellulose and natural and synthetic polymers in the form of powders, granules or latices such as gum arabic, polyvinyl alcohol and polyvinyl acetate, or else natural phospholipids such as cephalins and lecithins, and synthetic phospholipids can be used in the formulations. Further additives can be mineral and vegetable oils. It is possible to use colorants such as inorganic pigments, for example iron oxide, titanium oxide and Prussian Blue, and organic dyestuffs such as alizarin dyestuffs, azo dyestuffs and metal phthalocyanine dyestuffs, and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.

A safener that may be used in the present invention is one or more selected from the group consisting of benoxacor, cloquintocet, cyometrinil, dichlormid, dicyclonon, dietholate, fenchlorazole, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen, mefenpyr, mephenate, naphthalic anhydride, 2,2,5-trimethyl-3-(dichloracetyl)-1,3-oxazolidine, 4-(dichloroacetyl)-1-oxa-4-azaspiro[4.5]decane and oxabetrinil.

The above-described herbicidally active compounds include a number of known safeners or antidotes capable of antagonizing the damaging effect of herbicide on crop plants. It is known that 2,4-dichlorophenoxy-acetic acid (2,4-D) and its derivatives, (4-chloro-2-methylphenoxy)acetic acid (MCPA), (±)-2-(4-chloro-2-methylphenoxy)propanoic acid (mecoprop) are herbicidally active compounds that act as safeners or antidotes. The compounds that act as safeners or antidotes are herbicidally active compounds that may be included in the herbicidal composition of the present invention, and these compounds neutralize the damaging effect of compounds on the crop plants virtually completely without adversely affecting the herbicidal activity against weeds. At least one of said safeners or antidotes may be used in a mixture with the herbicidal composition of the present invention.

As used herein, the term “dry-field farming” refers to cultivating field crops, including, but not limited to, potatoes, sweet potatoes, carrots, Chinese cabbages, radishes, corn, watermelons, lettuce, sesame or perilla leaves, beans, Perilla japonica, sesame, red pepper, cucumbers, eggplants, and kale. As used herein, the term “paddy field farming” means farming that is performed by water irrigation, and typical examples thereof include rice farming. As used herein, the term “nonselective herbicide” refers to one that kills all plants without distinction between crops and weeds. Specifically, “non-selective herbicide” refers to one that can kill all plants which grow not only in rice fields and gardens, but also places in which crops are not cultivated, including fallow areas, the bank around a rice field, and a furrow.

The herbicidal composition of the present invention can be used in a mixture with other known herbicides or a formulation thereof. The active compounds in the herbicidal composition of the present invention are applied in the form of ready mixes. However, the active compounds can also be formulated individually and mixed upon use, i.e., applied in the form of tank mixes. The composition of the present invention may be mixed with other known active compounds, such as fungicides, insecticides, acaricides, nematicides, bird repellents, growth substances, plant nutrients and agents which improve soil structure. For particular application purposes, in particular when applied post-emergence, it may furthermore be advantageous to incorporate, in the formulations, mineral or vegetable oils which are tolerated by plants (for example the commercial product “Rako Binol”) or ammonium salts, for example, ammonium sulfate or ammonium thiocyanate, as further additives.

The herbicidal composition of the present invention can be used as such, in the form of their formulations or in the use forms prepared therefrom by further dilution, such as ready-to-use solutions, suspensions, emulsions, powders, pastes and granules. It is used in the customary manner, for example by watering, spraying, atomizing, dusting or broadcasting.

The herbicidal composition of the present invention may include one or more compounds represented by formula 1 as active ingredients. Moreover, the uracil compound may be a free base of the compound represented by formula 1 or an agrochemically acceptable salt thereof. In addition, because one or more chiral carbons can exist in the molecular structure of the compound represented by formula 1, the definition of the uracil compound of the present invention includes single enantiomers, diasteromers, racemates and the like.

Examples of an agrochemically acceptable salt of the compound represented by formula 1 include metal salts, salts with organic bases, salts with organic acids, salts with basic or acidic amino acids, and the like. Metal salts include, for example, alkali metal salts, such as sodium or potassium salts, alkaline earth metal salts, such as magnesium or barium salts, aluminum salts, and the like. Salts with organic bases include, for example, salts with trimethylamine, triethylamine, pyridine, picoline, 2,6- lutidine, ethanolamine, diethanolamine, triethanolamine, cyclohexylamine, dicyclohexylamine, N,N-dibenzylethylenediamine and the like. Examples of salts with inorganic acids include salts with hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid, etc. Examples of salts with organic acids include salts with formic acid, acetic acid, trifluoroacetic acid, phthalic acid, furmaric acid, oxalic acid, tartaric acid, maleic acid, citric acid, succinic acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, etc. Examples of salts with basic amino acids include salts with arginine, lysine, omithine, etc. Examples of salts with acidic amino acids include salts with aspartic acid, glutamic acid, etc.

According to the invention, it is possible to treat all plants and parts of plants with the herbicidal composition of the present invention. The term plants should be understood here to mean all plants and plant populations such as desired and undesired wild plants or crop plants (including naturally occurring crop plants). Crop plants can be plants which can be obtained by conventional breeding and optimization methods or by biotechnological and genetic engineering methods or combinations of these methods, including the transgenic plants and including the plant vareties which can or cannot be protected by varietal property rights. Parts of plants are to be understood as meaning all above-ground and below-ground parts and organs of plants, such as shoots, leaves, flowers and roots, examples which may be mentioned being leaves, needles, stems, trunks, flowers, fruit-bodies, fruits and seeds and also roots, tubers and rhizomes. Parts of plants also include vegetative and generative propagation material, for example seedlings, tubers, rhizomes, cuttings and seeds.

The treatment of plants and parts of plants with the herbicidal composition of the present invention is carried out directly or by action on their environment, habitat or storage area according to customary treatment methods, for example by dipping, spraying, evaporating, atomizing, broadcasting, brushing-on and, in the case of propagation material, in particular in the case of seeds, furthermore by one- or multi-layer coating. Among the plants obtained by biotechnological or genetic engineering methods or by combinations of these methods, emphasis is given to those plants which tolerate the so-called 4HPPD, EPSP and/or PPO inhibitors, such as, for example, Acuron plants.

The herbicidal composition according to the invention can be applied to the following plants. However, the use of the active compound combinations according to the invention is in no way restricted to these genera, but also extends in the same manner to other plants:

Dicotyledonous weeds: Abutilon, Amaranthus, Ambrosia, Anoda, Anthemis, Aphanes, Atriplex, Bellis, Bidens, Capsella, Carduus, Cassia, Centaurea, Chenopodium, Cirsium, Convolvulus, Datura, Desmodium, Emex, Erysimum, Euphorbia, Galeopsis, Galinsoga, Galium, Hibiscus, Ipomoea, Kochia, Lamium, Lepidium, Lindernia, Matricaria, Mentha, Mercurialis, Mullugo, Myosotis, Papaver, Pharbitis, Plantago, Polygonum, Portulaca, Ranunculus, Raphanus, Rorippa, Rotala, Rumex, Salsola, Senecio, Sesbania, Sida, Sinapis, Solanum, Sonchus, Sphenoclea, Stellaria, Taraxacum, Thlaspi, Trifolium, Urtica, Veronica, Viola , and Xanthium;

Dicotyledonous crops: Arachis, Brassica, Cucumis, Cucurbita, Helianthus, Daucus, Gossypium, Ipomoea, Lactuca, Linum, Lycopersicon, Nicotiana, Phaseolus, Pisum, Solanum and Vicia;

Monocdtyledonous weeds: Aegilops, Agropyron, Agrostis, Alopecurus, Apera, Avena, Brachiaria, Bromus, Cenchrus, Commelina, Cynodon, Cyperus, Dactyloctenium, Digitaria, Echinochloa, Eleocharis, Eleusine, Eragrostis, Eriochloa, Festuca, Fimbristylis, Heteranthera, Imperata, Ischaemum, Leptochloa, Lolium, Monochoria, Panicum, Paspalum, Phalaris, Phleum, Poa, Rottboellia, Sagittaria, Scirpus, Setaria , and Sorghum;

Monocotyledonous crops: Allium, Ananas, Asparagus, Avena, Hordeum, Oryza, Panicum, Saccharum, Secale, Sorghum, Triticale, Triticum , and Zea.

The herbicidal compositions according to the invention can be used both in conventional methods of cultivation (strip cultivation with suitable strip width) and in plantation cultivation (e.g., vines, fruit, citrus), as well as in industrial plants and track systems, on roads and squares, but also to handle stubble and in the minimum-tillage method. They are also suitable as burners (for killing foliage, e.g. in potatoes) or as defoliants (e.g. in cotton).

They are also suitable for use on fallow areas. Other areas of use are in tree nurseries, forests, grasslands, and in the cultivation of ornamental plants. The herbicidal composition according to the invention can be converted into the customary formulations, such as solutions, emulsions, wettable powders, suspensions, powders, dusting agents, pastes, soluble powders, granules, suspension-emulsion concentrates, natural and synthetic materials impregnated with active compound, and very fine capsules in polymeric substances.

The herbicidal composition according to the invention can be applied before and after the plants have emerged, that is to say pre-emergence and post-emergence. It can also be incorporated into the soil before sowing. The good herbicidal activity of the herbicidal composition of the present invention can be seen from the examples which follow. While the individual active compounds show weak points regarding the herbicidal activity, the combinations, without exception, display a very good activity against weeds, which exceeds a simple additive effect. A synergistic effect in herbicides is always present when the herbicidal activity of the active combination exceeds the activity of the active compounds when applied individually.

The expected activity for a given combination of two herbicides can be calculated as shown in the following equation 1 (COLBY, S. R., “Calculating synergistic and antagonistic responses of herbicide combinations”, Weeds 15, pages 20-22, 1967):

Equation 1

E=X+Y− ( X×Y/ 100)

In Equation 1,

X is % damage by uracil compound (a) of formula 1 at the rate of application of p kg/ha; Y is % damage by conventional herbicidal compound (b) at the rate of application of q kg/ha; and E is the expected damage caused by compounds (a) and (b) at a rate of application of p and q kg/ha.

Hereinafter, the present invention will be described further with reference to examples. It is to be understood, however, that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

In the following examples, the compounds disclosed in Korean Patent No. 1,103,840 were mixed with other herbicidally active compounds, and the effects thereof were examined.

In Formula 1,

R 1 and R 2 are the same or different and represent a hydrogen atom or a C 1 -C 6 alkyl group; R 3 represents a hydrogen atom, a hydroxyl group, a C 1 -C 6 alkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 8 alkoxy group, a C 1 -C 6 haloalkyl group, a C 2 -C 6 haloalkenyl group, a C 1 -C 6 alkoxy C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; R 4 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 haloalkyl group, or a C 1 -C 6 alkoxycarbonyl C 1 -C 6 alkyl group; R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a C 2 -C 6 haloalkyl group, a C 2 -C 6 alkenyl group, a C 2 -C 6 haloalkenyl group, a C 2 -C 6 alkynyl group, a C 1 -C 6 alkoxycarbonyl group, a C 1 -C 6 alkyl group, a C 6 -C 10 aryl C 1 -C 6 alkyl group, or a C 6 -C 10 aryl C 1 -C 6 alkoxy group; X represents O, S, SO, SO 2 , NH, or N(C 1 -C 6 alkyl); Y represents a C 1 -C 6 alkylene group or a C 1 -C 6 haloalkylene group; W represents O, S, NH, or N(C 1 -C 6 alkyl); and Z represents a halogen atom, a cyano group, CONH 2 , or CSNH 2 .

Preferably, the uracil compound represented by formula 1 is a uracil compound wherein R 1 and R 2 are the same or different and represent a hydrogen atom or a methyl group; R 3 represents a hydrogen atom, a hydroxyl group, a methyl group, a methoxy group or a benzyloxy group; R 4 represents a hydrogen atom or a methyl group; R 5 represents a hydrogen atom, a methyl group, an ethyl group, a n-propyl group, a n-butyl group, a methoxy group, an allyl group, a propargyl group, a benzyl group, a benzyloxy group, or a methoxycarbonylmethyl group; X represents O, S, SO 2 , or NH; Y represents CH 2 , CH(CH 3 ), CH 2 CH 2 , CH 2 CH 2 CH 2 , or CH(CH 2 F); W represents O, or NH; and Z represents a chlorine atom, a cyano group, or CSNH 2 .

More preferably, the uracil compound represented by formula 1 is a uracil compound wherein R 1 and R 2 are the same or different and represent a hydrogen atom or a methyl group; R 3 represents a hydrogen atom, a hydroxyl group, a methyl group, or a methoxy group; R 4 represents a hydrogen atom; R 5 represents a hydrogen atom, a methyl group, an ethyl group, a n-butyl group, an allyl group, a propargyl group, or CH 2 CO 2 CH 3 ; X represents O, S, or NH; Y represents CH 2 , CH 2 CH 2 , or CH(CH 2 F); W represents O; and Z represents a chlorine atom.

Among the compounds represented by formula 1 according to the present invention, particularly preferable compounds are as follows:

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid methyl ester (compound 1);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}methoxyamino]propionic acid methyl ester (compound 4);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}benzyloxyamino]propionic acid methyl ester (Compound 5);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}hydroxyamino]propionic acid methyl ester (compound 6);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluoropphenoxy]-1-oxopropyl}amino]-4-fluorobutyric acid methyl ester (compound 8);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]butyric acid methyl ester (compound 9);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]-2-methylpropionic acid methyl ester (compound 10);

4-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]butyric acid methyl ester (compound 11);

5-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]pentanoic acid methyl ester (compound 12);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxoethyl}amino]propionic acid methyl ester (compound 13);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenylamino]-1-oxopropyl}amino]propionic acid methyl ester (compound 15); 3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxoethyl}methylamino]propionic acid methyl ester (compound 16);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxoisopropyl}amino]propionic acid methyl ester (compound 18);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid benzyl ester (compound 20);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid n-propyl ester (compound 21);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionyloxy acetic acid methyl ester (compound 22);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid n-butyl ester (compound 23);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid ethyl ester (compound 24);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid allyl ester (compound 25);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid propargyl ester (compound 26);

4-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]butyric acid ethyl ester (compound 28);

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenylthio]-1-oxopropyl}amino]propionic acid methyl ester (compound 36);

3-[{2-[2-cyano-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propionic acid methyl ester (compound 46);

3-[{2-[2-aminothiocarbonyl-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenoxy]-1-oxopropyl}amino]propiponic acid methyl ester (compound 52); and

3-[{2-[2-chloro-5-(3,6-dihydro-3-methyl-2,6-dioxo-4-trifluoromethyl-1(2H)-pyrimidinyl)-4-fluorophenylsulfonyl]-1-oxopropyl}amino]propionic acid methyl ester (compound 61).

The chemical structures of the above-described uracil compounds are summarized in Table 1 below.

To test herbicidal activities, (1) in the case of non-selective herbicidal compositions, weeds at the growth stage (30-40 cm) in fallow areas and orchards were treated with compositions containing the uracil compounds and herbicidally active compounds. (2) In the case of dry-field farming, weeds at the initial growth state (5 cm or less) in wheat and corn fields weeds were treated with compositions containing the uracil compounds and herbicidally active compounds. (3) In the case of paddy field farming weeds in rice fields were treated with compositions containing the uracil compounds and herbicidally active compounds at 15 days after rice transplantation.

Herbicidal activities were visually evaluated by comparing the mortality of the plants with untreated control groups 20 days after treatment with the compositions.

Meanwhile, if the actual damage exceeds the calculated value, then the activity of the combination is superadditive. The expected activity for a given combination of two herbicides can be calculated using equation 1 above.