Weed control composition

Abstract

The present invention relates to a composition comprising crystal of flumioxazin which shows a powder X-Ray diffraction pattern having diffraction peaks with 2θ values (°) shown in Table 1 of the specification, the pattern being obtained by CuKα rays diffraction analysis, and one or more herbicidal compounds selected from the group B-1, B-2, B-3, B-4, B-5, B-6, B-7, B-8, B-9, B-10, B-11 and B-12 described in the specification. According to the present invention, a wide range of weeds can be controlled in a crop field, land under perennial crops, or non-crop land.

1 . A composition comprising crystal of flumioxazin which shows a powder X-Ray diffraction pattern having diffraction peaks with 2θ values (°) shown in Table 1, said pattern being obtained by CuKα rays diffraction analysis, 
       
         
           
                 
               
                   TABLE 1 
                 
                     
                 
                   2θ value (°) 
                 
                     
                 
                    9.8 ± 0.1 
                 
                   11.4 ± 0.1 
                 
                   12.7 ± 0.1 
                 
                   13.8 ± 0.1 
                 
                   16.0 ± 0.1 
                 
                   16.4 ± 0.1 
                 
                   16.7 ± 0.1 
                 
                     
                 
             
                
                
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
       and one or more herbicidal compounds selected from the group B:
 Group B: 
 B-1) Acetolactic acid synthase inhibitors; 
 B-2) Acetyl CoA carboxylase inhibitors; 
 B-3) Protoporphyrinogen IX oxidase inhibitors; 
 B-4) 4-Hydroxyphenylpyrubic acid dioxygenase inhibitors; 
 B-5) Phytoene desaturase inhibitors; 
 B-6) Photosystem II inhibitors; 
 B-7) Very-long-chain fatty acid synthesis inhibitors; 
 B-8) Tubulin synthesis inhibitors; 
 B-9) Auxin type herbicides; 
 B-11) Glutamine synthetase inhibitors; and 
 B-12) Other herbicides; 
 
       wherein the compound of the group B is the following compound:
 B-1) Acetolactic acid synthase inhibitors: 
 Pyrithiobac, pyrithiobac-sodium salt, pyriminobac, pyriminobac-methyl, bispyribac, bispyribac sodium salt, pyribenzoxim, pyrimisulfan, pyriftalid, triafamone, amidosulfuron, azimsulfuron, bensulfuron, bensulfuron-methyl, chlorimuron, cyclosulfamuron, ethoxysulfuron, flazasulfuron, flucetosulfuron, flupyrsulfuron, flupyrsulfuron methyl-sodium, foramsulfuron, halosulfuron, halosulfuron-methyl, imazosulfuron, mesosulfuron, mesosulfuron-methyl, metazosulfuron, nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron, primisulfuron-methyl, propyrisulfuron, pyrazosulfuron, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron, sulfometuron-methyl, sulfosulfuron, trifloxysulfuron-sodium salt, trifloxysulfuron, chlorsulfuron, cinosulfuron, ethametsulfuron, ethametsulfuron-methyl, iodosulfuron, iodosulfuron-methyl-sodium, iofensulfuron, iofensulfuron-sodium, metsulfuron, metsulfuron-methyl, prosulfuron, thifensulfuron, thifensulfuron-methyl, triasulfuron, tribenuron, tribenuron-methyl, triflusulfuron, triflusulfuron-methyl, tritosulfuron, bencarbazone, flucarbazone, flucarbazone-sodium salt, ipfencarbazone, propoxycarbazone, propoxycarbazone-sodium salt, thiencarbazone, thiencarbazone-methyl, cloransulam, cloransulam-methyl, diclosulam, florasulam, flumetsulam, metosulam, penoxsulam, pyroxsulam, imazamethabenz, imazamethabenz-methyl, imazamox, imazamox-ammonium salt, imazapic, imazapic-ammonium salt, imazapyr, imazapyr-isopropylammonium salt, imazaquin, imazaquin-ammoniumsalt, imazethapyr, and imazethapyr-ammonium salt; 
 B-2) Acetyl CoA carboxylase inhibitors: 
 Clodinafop, clodinafop-propargyl, cyhalofop, cyhalofop-butyl, diclofop, diclofop-methyl, fenoxaprop, fenoxaprop-ethyl, fenoxaprop-P, fenoxaprop-P-ethyl, fluazifop, fluazifop-butyl, fluazifop-P, fluazifop-P-butyl, haloxyfop, haloxyfop-methyl, haloxyfop-P, haloxyfop-P-methyl, metamifop, propaquizafop, quizalofop, quizalofop-ethyl, quizalofop-P, quizalofop-P-ethyl, alloxydim, clethodim, sethoxydim, tepraloxydim, tralkoxydim, and pinoxaden; 
 B-3) Protoporphyrinogen IX oxidase inhibitors: 
 Azafenidin, oxadiazone, oxadiargyl, carfentrazone, carfentrazone-ethyl, saflufenacil, cinidon, cinidon-ethyl, sulfentrazone, pyraclonil, pyraflufen, pyraflufen-ethyl, butafenacil, fluazolate, fluthiacet, fluthiacet-methyl, flufenpyr, flufenpyr-ethyl, flumiclorac, flumiclorac-pentyl, pentoxazone, oxyfluorfen, acifluorfen, aclonifen, chlomethoxynil, chloronitrofen, nitrofen, bifenox, fluoroglycofene, fluoroglycofene-ethyl, fomesafen, fomesafen-sodium salt, lactofen, and compounds represented by the formula (I): 
 
       
         
           
           
               
               
           
         
         B-4) 4-Hydroxyphenylpyrubic acid dioxygenase inhibitors: 
         Benzobicyclon, bicyclopyrone, mesotrione, sulcotrione, tefuryltrione, tembotrione, isoxachlorotole, isoxaflutole, benzofenap, pyrasulfotole, pyrazolynate, pyrazoxyfen, and topramezone; 
         B-5) Phytoene desaturase inhibitors: 
         Diflufenican, picolinafen, beflubutamid, norflurazon, fluridone, flurochloridone, and flurtamone; 
         B-6) Photosystem II inhibitors: 
         Ioxynil, ioxynil octanoate, bentazone, pyridate, bromoxynil, bromoxynil octanoate, chlorotoluron, dimefuron, diuron, linuron, fluometuron, isoproturon, isouron, tebuthiuron, benzthiazuron, methabenzthiazuron, propanil, metobromuron, metoxuron, monolinuron, siduron, simazine, atrazine, propazine, cyanazine, ametryne, simetryn, dimethametryn, prometryn, terbumeton, terbuthylazine, terbutryn, trietazine, hexazinone, metamitron, metribuzin, amicarbazone, bromacil, lenacil, terbacil, chloridazon, desmedipham, and phenmedipham; 
         B-7) Very-long-chain fatty acid synthase inhibitors: 
         Propachlor, metazachlor, alachlor, acetochlor, metolachlor, S-metolachlor, butachlor, pretilachlor, thenylchlor, indanofan, cafenstrole, fentrazamide, dimethenamid, dimethenamid-P, mefenacet, pyroxasulfone, fenoxasulfone, naproanilide, anilofos, and flufenacet; 
         B-8) Tubulin synthesis inhibitors: 
         Trifluralin, pendimethalin, ethafluralin, benfluralin, prodiamine, indaziflam, triaziflam, butamifos, dithiopyr, and thiazopyr; 
         B-9) Auxin type herbicides: 
         Dicamba and a salt thereof (diglycolamine salt, dimethylammonium salt, isopropylammonium salt, potassium salt, sodium salt, and choline salt), 2,4-D and a salt or ester thereof (butotyl ester, dimethylammonium salt, diolamine salt, ethylhexyl ester, isooctyl ester, isopropylammonium salt, sodium salt, and triisopropanolamine salt), 2,4-DB and a salt or ester thereof (dimethylammonium salt, isooctyl ester, and cholinesalt), MCPA and a salt or ester thereof (dimethylammonium salt, 2-ethylhexyl ester, isooctyl ester, sodium salt, and choline salt), MCPB, mecoprop and a salt or ester thereof (dimethylammonium salt, diolamine salt, ethadyl ester, 2-ethylhexyl ester, isooctyl ester, methyl ester, potassium salt, sodium salt, tololamine salt, and choline salt), mecoprop-P and a salt or ester thereof (dimethylammonium salt, 2-ethylhexyl ester, isobutyl salt, potassium salt, and choline salt), dichlorprop and a salt or ester thereof (butotyl ester, dimethylammonium salt, 2-ethylhexyl ester, isooctyl ester, methyl ester, potassium salt, sodium salt, and choline salt), dichlorprop-P, dichlorprop-P dimethylammonium, triclopyr and a salt or ester thereof (butotyl ester and triethylammonium salt), fluroxypyr, fluroxypyr-meptyl, picloram and a salt thereof (potassium salt, triisopanolammonium salt, and choline salt), quinclorac, quinmerac, aminopyralid and a salt thereof (potassium salt, triisopanolammonium salt, and choline salt), clopyralid and a salt thereof (olamine salt, potassium salt, triethylammonium salt, and choline salt), and clomeprop; 
         B-11) Glutamine synthetase inhibitors: 
         Glufosinate, glufosinate-ammonium salt, glufosinate-P, glufosinate-P-sodium salt, and bialaphos; 
         B-12) Other herbicides: 
         Isoxaben, dichlobenil, methiozolin, diallate, butyrate, triallate, chlorpropham, asulam, phenisopham, benthiocarb, molinate, esprocarb, pyributicarb, prosulfocarb, orbencarb, EPTC, dimepiperate, Swep, aminocyclopyrachlor, aminocyclopyrachlor-methyl, aminocyclopyrachlor-potassium, difenoxuron, methyl dymron, bromobutide, dymron, cumyluron, diflufenzopyr, etobenzanid, tridiphane, amitrole, fenchlorazole, clomazone, maleic hydrazide, oxaziclomefone, cinmethylin, benfuresate, ACN, dalapon, chlorthiamid, flupoxam, bensulide, paraquat, paraquat-dichloride, diquat, and diquat-dibromide. 
       
     
     
         2 . The weed control composition according to  claim 1 , wherein the compound of the group B is a glufosinate-ammonium salt. 
     
     
         3 . The weed control composition according to  claim 1 , wherein the compound of the group B is cloransulam-methyl. 
     
     
         4 . The weed control composition according to  claim 1 , wherein the compound of the group B is pyroxasulfone. 
     
     
         5 . The weed control composition according to  claim 1 , wherein the compound of the group B is a compound selected from dicamba, a dicamba-diglycolamine salt, a dicamba-dimethylammonium salt, a dicamba-isopropylammonium salt, a dicamba-potassium salt, a dicamba-sodium salt, and a dicamba-choline salt. 
     
     
         6 . The weed control composition according to  claim 1 , wherein the compound of the group B is a compound selected from a 2,4-D, 2,4-D butotyl ester, a 2,4-D dimethylammonium salt, a 2,4-D diolamine salt, a 2,4-D ethylhexyl ester, a 2,4-D isooctyl ester, a 2,4-D isopropylammonium salt, a 2,4-D sodium salt, and a 2,4-D triisopropanolammonium salt. 
     
     
         7 . The weed control composition according to  claim 1 , wherein the compound of the group B is an imazethapyr-ammonium salt. 
     
     
         8 . The weed control composition according to  claim 1 , wherein the compound of the group B is metribuzin. 
     
     
         9 . The weed control composition according to  claim 1 , wherein the compound of the group B is isoxaflutole. 
     
     
         10 . The weed control composition according to  claim 1 , wherein the compound of the group B is mesotrione. 
     
     
         11 . The weed control composition according to  claim 1 , wherein the compound of the group B is tembotrione. 
     
     
         12 . The weed control composition according to  claim 1 , wherein the compound of the group B is ametryne. 
     
     
         13 . A method of controlling weeds, the method comprising applying an effective amount of crystal of flumioxazin defined in  claim 1  and one or more herbicidal compounds selected from the above group B defined in  claim 1  to soil where the weeds are grown or to be grown, or weeds. 
     
     
         14 . The method according to  claim 13 , which is a method of controlling weeds in a crop field, land under perennial crops, or non-crop land. 
     
     
         15 . The method according to  claim 14 , wherein the crop field is a field for soybean, peanut, corn, cotton, wheat, or sugar cane. 
     
     
         16 . The method according to  claim 14 , wherein the land under perennial crops is an orchard. 
     
     
         17 . A composition comprising crystal of flumioxazin which shows a powder X-Ray diffraction pattern having diffraction peaks with 2θ values (°) shown in Table 1, said pattern being obtained by CuKα rays diffraction analysis, 
       
         
           
                 
               
                   TABLE 1 
                 
                     
                 
                   2θ value (°) 
                 
                     
                 
                    9.8 ± 0.1 
                 
                   11.4 ± 0.1 
                 
                   12.7 ± 0.1 
                 
                   13.8 ± 0.1 
                 
                   16.0 ± 0.1 
                 
                   16.4 ± 0.1 
                 
                   16.7 ± 0.1 
                 
                     
                 
             
                
                
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
       and thifensulfuron-methyl, wherein a weight ratio of the crystal of flumioxazin to thifensulfuron-methyl is 1:0.01 to 1:1 
     
     
         18 . A composition comprising crystal of flumioxazin which shows a powder X-Ray diffraction pattern having diffraction peaks with 2θ values (°) shown in Table 1, said pattern being obtained by CuKα rays diffraction analysis, 
       
         
           
                 
               
                   TABLE 1 
                 
                     
                 
                   2θ value (°) 
                 
                     
                 
                    9.8 ± 0.1 
                 
                   11.4 ± 0.1 
                 
                   12.7 ± 0.1 
                 
                   13.8 ± 0.1 
                 
                   16.0 ± 0.1 
                 
                   16.4 ± 0.1 
                 
                   16.7 ± 0.1 
                 
                     
                 
             
                
                
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
       and metribuzin, wherein a weight ratio of the crystal of flumioxazin to metribuzin is 1:1 to 1:10. 
     
     
         19 . A composition comprising crystal of flumioxazin which shows a powder X-Ray diffraction pattern having diffraction peaks with 2θ values (°) shown in Table 1, said pattern being obtained by CuKα rays diffraction analysis, 
       
         
           
                 
               
                   TABLE 1 
                 
                     
                 
                   2θ value (°) 
                 
                     
                 
                    9.8 ± 0.1 
                 
                   11.4 ± 0.1 
                 
                   12.7 ± 0.1 
                 
                   13.8 ± 0.1 
                 
                   16.0 ± 0.1 
                 
                   16.4 ± 0.1 
                 
                   16.7 ± 0.1 
                 
                     
                 
             
                
                
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
       and cloransulam-methyl, wherein a weight ratio of the crystal of flumioxazin to cloransulam-methyl is 1:0.1 to 1:1.