Herbicidal combination

Abstract

An herbicidal combination including a photosystem II inhibitor, an ALS inhibitor, and a chlorophyll and heme biosynthesis inhibitor, a composition comprising the combination, and methods of using these combinations are described.

We claim: 
     
         1 . An herbicidal combination comprising a photosystem II inhibitor, an acetolactate synthase (ALS) inhibitor, and a chlorophyll and heme biosynthesis inhibitor. 
     
     
         2 . The combination as claimed in of  claim 1 , wherein:
 the photosystem II inhibitor is selected from the group consisting of (i) a phenylcarbamate herbicide; (ii) a triazine herbicide; (iii) a triazinone herbicide; (iv) an uracil herbicide; (v) a benthiadiazole herbicide; (vi) a nitrile herbicide; and (vii) an urea herbicide; and   the ALS inhibitor is selected from the group consisting of (i) an imidazolinone herbicide; (ii) a sulfonylamino-carbonyltriazolinone herbicide; (iii) a sulfonylurea herbicide; (iv) a pyrazole herbicide; (v) a triazolpyramidine herbicide; and (vi) a triazolone herbicide.   
     
     
         3 . The combination of  claim 2 , wherein the photosystem II inhibitor is:
 a phenylcarbamate herbicide selected from the group consisting of barban, BCPC), carbasulam, carbetamide, CEPC), chlorbufam, chlorpropham, (RS)-2-chloro-1-methylethyl 3-chlorocarbanilate (CPPC), desmedipham, phenisopham, phenmedipham, phenmedipham-ethyl, propham, and methyl(3,4 dichlorophenyl)carbamate;   a triazine herbicide selected from the group consisting of dipropetryn, fucaojing, trihydroxytriazine, atrazine, chlorazine, cyanazine, cyprazine, eglinazine, ipazine, mesoprazine, procyazine, proglinazine, propazine, sebuthylazine, simazine, terbuthylazine, trietazine, indaziflam, triaziflam, atraton, methometon, prometon, secbumeton, simeton, terbumeton, ametryn, aziprotryne, cyanatryn, desmetryn, dimethametryn, methoprotryne, propmetryn, simetryn, and terbutryn;   a triazinone herbicide selected from the group consisting of ametridione, amibuzin, ethiozin, hexazinone, isomethiozin, metamitron, metribuzin, and trifludimoxazin;   a uracil herbicide selected from the group consisting of benzfendizone, bromacil, butafenacil, flupropacil, isocil, lenacil, saflufenacil, terbacil, and tiafenacil;   a benzothiazole herbicide selected from the group consisting of benazolin, benzthiazuron, fenthiaprop, mefenacet, and methabenzthiazuron;   a benzothiadiazole herbicide which is bentazone or bentazone-sodium;   a nitrile herbicide selected from the group consisting of bromobonil, bromoxynil, chloroxynil, cyclopyranil, dichlobenil, iodobenil, ioxynil and pyraclonil; or   a phenylurea herbicide selected from the group consisting of anisuron, buturon, chlorbromuron, chloreturon, chlorotoluron, chloroxuron, daimuron, difenoxuron, dimefuron, diruon, fenuron, fluometuron, fluothiuron, isoproturon, linuron, methiruon, methyldymuron, metobenzuron, metobromuron, metoxuron, monolinuron, monuron, neburon, parafluron, phenobenzuron, siduron, tetrafluron, and thidiazuron.   
     
     
         4 . The combination of  claim 2 , wherein the ALS inhibitor herbicide is:
 an imidazolinone herbicide selected from the group consisting of imazamethabenz, imazamox, imazapic, imazapyr, imazaquin, and imazethapyr;   a triazolone herbicide selected from the group consisting of amicarbazone, bencarbazone, carfentrazone, flucarbazone, ipfencarbazone, propoxycarbazone, sulfentrazone, and thiencarbazone;   a sulfonylamino-carbonyltriazolinone herbicide selected from the group consisting of flucarbazone, and flucarbazone-sodium;   a sulfonylurea herbicide selected from the group consisting of amidosulfuron, azimsulfuron, bensulfuron, chlorimuron, cyclosulfamuron, ethoxysulfuron, flazasulfuron, flucetosulfuron, flupyrsulfuron, foramsulfuron, halosulfuron, imazosulfuron, mesosulfuron, metazosulfuron, methiopyrisulfuron, monosulfuron, nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron, propyrisulfuron, pyrazosulfuron, rimsulfuron, sulfometuron, sulfosulfuron, trifloxysulfuron, zuomihuanglong, chlorsulfuron, cinosulfuron, ethametsulfuron, iodosulfuron, iofensulfuron, metsulfuron, prosulfuron, thifensulfuron, triasulfuron, tribenuron, trflusulfuron, and tritosulfuron;   a pyrazole herbicide selected from the group consisting of azimsulfuron, cyclopyranil, difenzoquat, halosulfuron, flazasulfuron, metazachlor, metazosulfuron, pyrazosulfuron, pyraclonil, pyroxasulfone, benzofenap, pyrasulfotole, pyrazolynate, pyrazoxyfen, tolpyralate, topramezone, fluazolate, nipyraclofen, pinoxaden, and pyraflufen; or   a triazolopyrimidine herbicide selected from the group consisting of chloransulam, diclosulam, florasulam, flumetsulam, metosulam, penoxsulam, and pyroxsulam.   
     
     
         5 . The combination of  claim 1 , wherein the photosystem II inhibitor is selected from the group consisting of chlorpropham, desmedipham, phenmedipham, phenmedipham-ethyl, atrazine, hexazinone, metamitron, metribuzin, bromacil, saflufenacil, bentazone, bentazone-sodium, bromoxynil, diruon, and linuron. 
     
     
         6 . The combination of  claim 1 , wherein the ALS inhibitor herbicide is selected from the group consisting of imazamox, imazapic, imazapyr, imazethapyr, carfentrazone, flucarbazone, sulfentrazone, flucarbazone, amicarbazone, flucarbazone-sodium, bensulfuron, halosulfuron, pyrazosulfuron, flazasulfuron, sulfosulfuron, trifloxysulfuron, metsulfuron, metazachlor, pinoxaden, pyraflufen, diclosulam, and penoxsulam. 
     
     
         7 . The combination of  claim 1 , wherein the chlorophyll and heme biosynthesis inhibitor is:
 a triazolone herbicide selected from the group consisting of amicarbazone, bencarbazone, carfentrazone, flucarbazone, ipfencarbazone, propoxycarbazone, sulfentrazone, and thiencarbazone;   a uracil herbicide selected from the group consisting of benzfendizone, bromacil, butafenacil, flupropacil, isocil, lenacil, saflufenacil, terbacil and tiafenacil;   a dicarboximide herbicide selected from the group consisting of cinidon-ethyl, flumezin, flumiclorac, flumioxazin, and flumipropyn; or   a pyrazole herbicide selected from the group consisting of azimsulfuron, cyclopyranil, difenzoquat, halosulfuron, metazachlor, flazasulfuron, metazosulfuron, pyrazosulfuron, pyraclonil, pyroxasulfone, benzofenap, pyrasulfotole, pyrazolynate, pyrazoxyfen, tolpyralate, topramezone, fluazolate, nipyraclofen, pinoxaden, and pyraflufen.   
     
     
         8 . The combination of  claim 1 , wherein the chlorophyll and heme biosynthesis inhibitor is selected from the group consisting of carfentrazone, amicarbazone, flucarbazone, sulfentrazone, bromacil, saflufenacil, flumioxazin, metazachlor, amicarbazone, pinoxaden, and pyraflufen. 
     
     
         9 . An herbicidal combination comprising:
 (a) a photosystem II inhibitor selected from the group consisting of chlorpropham, desmedipham, phenmedipham, phenmedipham-ethyl, atrazine, hexazinone, metamitron, metribuzin, bromacil, saflufenacil, bentazone, bentazone-sodium, bromoxynil, diruon, and linuron;   (b) an ALS inhibitor selected from the group consisting of imazamox, imazapic, imazapyr, imazethapyr, carfentrazone, amicarbazone, flucarbazone, sulfentrazone, flucarbazone, flucarbazone-sodium, bensulfuron, halosulfuron, pyrazosulfuron, sulfosulfuron, flazasulfuron, trifloxysulfuron, metsulfuron, metazachlor, pinoxaden, pyraflufen, diclosulam, and penoxsulam; and   (c) a chlorophyll and heme biosynthesis inhibitor selected from the group consisting of carfentrazone, amicarbazone, flucarbazone, sulfentrazone, bromacil, saflufenacil, flumioxazin, metazachlor, pinoxaden, and pyraflufen.   
     
     
         10 . The combination of  claim 9 , wherein the photosystem II inhibitor, the ALS inhibitor and the chlorophyll and heme biosynthesis inhibitor herbicides are not the same. 
     
     
         11 . The combination of  claim 9 , comprising:
 (a) the photosystem II inhibitor selected from bentazone and bentazone-sodium;   (b) the ALS inhibitor selected from the group consisting of imazamox, imazapic, imazapyr, imazethapyr, carfentrazone, amicarbazone, flucarbazone, sulfentrazone, flucarbazone, flucarbazone-sodium, bensulfuron, halosulfuron, pyrazosulfuron, flazasulfuron, sulfosulfuron, trifloxysulfuron, metsulfuron, metazachlor, pinoxaden, pyraflufen, diclosulam, and penoxsulam; and   (c) the chlorophyll and heme biosynthesis inhibitor is selected from the group consisting of carfentrazone, amicarbazone, flucarbazone, sulfentrazone, bromacil, saflufenacil, flumioxazin, metazachlor, pinoxaden, and pyraflufen.   
     
     
         12 . The combination of  claim 9 , wherein the combination comprises at least three herbicides listed as combinations in 1-2550 of table 1. 
     
     
         13 . An herbicidal combination comprising bentazon, sulfentrazone, and halosulfuron. 
     
     
         14 . A kit-of-parts comprising a plurality of components, wherein said plurality of components comprises:
 (a) a first component comprising at least one photosystem II inhibitor selected from the group consisting of (i) a phenylcarbamate herbicide; (ii) a triazine herbicide; (iii) a triazinone herbicide; (iv) an uracil herbicide; (v) a benthiadiazole herbicide; (vi) a nitrile herbicide; and (vii) an urea herbicide;   (b) a second component comprising at least one ALS inhibitor selected from the group consisting of (i) an imidazolinone herbicide; (ii) a sulfonylamino-carbonyltriazolinone herbicide; (iii) a sulfonylurea herbicide; (iv) a pyrazole herbicide; (v) a triazolpyramidine herbicide; and (vi) a triazolone herbicide; and   (c) a third component comprising at least one chlorophyll and heme biosynthesis inhibitor herbicide.   
     
     
         15 . A method of controlling weeds at a locus, said method comprising applying to the locus the combination of  claim 1 . 
     
     
         16 . The composition of  claim 1 , further comprising at least one agrochemically acceptable excipient. 
     
     
         17 . A method of increasing yield in a crop by application to the crop the combination of  claim 9 . 
     
     
         18 . A method of improving the plant health, said method comprising application at the locus of the plant the combination of  claim 9 .