WO2004080171A2 - Synergistically acting herbicidal mixtures - Google Patents

Synergistically acting herbicidal mixtures Download PDF

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Publication number
WO2004080171A2
WO2004080171A2 PCT/EP2004/002240 EP2004002240W WO2004080171A2 WO 2004080171 A2 WO2004080171 A2 WO 2004080171A2 EP 2004002240 W EP2004002240 W EP 2004002240W WO 2004080171 A2 WO2004080171 A2 WO 2004080171A2
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Prior art keywords
methyl
ethyl
environmentally compatible
esters
compound
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PCT/EP2004/002240
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French (fr)
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WO2004080171A3 (en
Inventor
Matthias Witschel
Cyrill Zagar
Andreas Landes
Peter Dombo
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Basf Aktiengesellschaft
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Priority to MXPA05009112A priority Critical patent/MXPA05009112A/en
Priority to JP2006504548A priority patent/JP2006520341A/en
Priority to EP04717622A priority patent/EP1605760A2/en
Priority to AU2004218837A priority patent/AU2004218837A1/en
Priority to CA002518621A priority patent/CA2518621A1/en
Priority to US10/548,740 priority patent/US20060154823A1/en
Priority to EA200501359A priority patent/EA200501359A1/en
Priority to BRPI0408201-0A priority patent/BRPI0408201A/en
Publication of WO2004080171A2 publication Critical patent/WO2004080171A2/en
Publication of WO2004080171A3 publication Critical patent/WO2004080171A3/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Definitions

  • the present invention relates to a synergistic herbicidal mixture comprising
  • the invention furthermore relates to herbicidal compositions comprising a herbicidally active amount of a synergistic herbicidal mixture as defined above and at least one liquid and/or solid carrier and, if desired, at least one surfactant. Moreover, the invention relates to a process for the preparation of these compositions and to a method of controlling undesirable vegetation.
  • the mixtures according to the invention show a synergistic effect; the compatibility of the herbicidally active compounds of components A),B) and, if desired C) for certain crop plants is generally retained.
  • the compound of the formula I is disclosed in WO 02/36595. Mixtures with other herbicides are disclosed in Research Disclosure, July 2002, Number 459, No 459085.
  • pronamid p. 34, “bialaphos” p. 234, “amitrol” p. 254, "clomeprop p. 20, “” p. 6, “fenoprop” p. 8, “MCPB” p. 8, “napropamide” p. 16, “triclopyr” p. 154, “chloram- ben” p. 28, “fluorochloridone” p. 266, “fluridone” p. 156, “asulam” “ p. 112, “barban” p. 100, “butylate” p. 106, “carbetamide” p. 36, “chlorobufam” p. 100, “cycloate” p.
  • the compound "DEH-112" is disclosed in European Patent Application EP-A 302 203.
  • the compound “tepraloxydim” is described in DE-A 33 36 140; the compound “fluorbentranil” in EP-A 84 893.
  • Other compounds are known from "Brighton Crop Protection Conference - Weeds - 1993” (S. "thidiazimin” p. 29, “AC-322140” p. 41, "KIH- 6127” p. 47, “KIH-2023” p. 61, “metobenz-uron” p. 67).
  • the compound “carfenstrole (CH-900)” is mentioned in EP-A 332 133.
  • the compound of the formula I and/or the herbicidally active compounds and safeners from amongs groups B) and/or C) may also exist in the form of their environmentally compatible salts.
  • Such salts are, in general, the salts of those cations, or the acid addition salts of those acids, whose cations, or anions, respectively, do not adversely affect the herbicidal action of the active ingredients.
  • Suitable cations are, in particular, ions of the alkali metals, preferably lithium, sodium and potassium, of the alkaline earth metals, preferably calcium and magnesium, and of the transition metals, preferably manganese, copper, zinc and iron, and also ammonium, it being possible in this case, if desired, for one to four hydrogen atoms to be replaced by C 1 -C 4 -alkyl, hydroxy-C ⁇ -C 4 -alkyl, C -C -alkoxy-C 1 -C 4 -aIkyl, hydroxy-d-C 4 - alkoxy-C ⁇ -C 4 -alkyl, phenyl or benzyl, preferably ammonium, isopropylammonium, di- methylammonium, diisopropylammonium, tetramethylammonium, tetrabutylammonium, 2-(2-hydroxyeth-1-oxy)eth-1-yl ammonium, di(2-hydroxyeth-1
  • Anions of suitable acid addition salts are mainly chloride, bromide, fluoride, hydrogen sulfate, sulfate, dihydrogen phosphate, hydrogen phosphate, nitrate, hydrogen carbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate and the anions of C 1 -C 4 -alkanoic acids, preferably formate, acetate, propionate and butyrate.
  • Preferred herbicidal mixtures according to the invention are mixtures comprising component A) and
  • the safeners Dichlormid, Benoxacor, LAB-145138, ivlG-191, MQN-13900, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl.
  • Particular preferred herbicidal mixtures according to the invention are mixtures com- prising component A) and
  • Very particular preferred herbicidal mixtures according to the invention are mixtures comprising component A) and
  • the synergistic herbicidal mixture comprises component A) with
  • Cloquintocet and its environmentally compatible esters and hydrates in particular Cloquintocetmexyl
  • the synergistic herbicidal mixture comprises component A) with
  • the respective preferences described above apply analogously.
  • the present invention also extends to herbicidal compositions which comprise a herbicidally active amount of a synergistic herbicidal mixture (comprising components A), B) and, if desired, C) as described above), at least one liquid and/or solid carrier and, if desired, at least one surfactant.
  • the herbicidal compositions and synergistic herbicidal mixtures according to the invention can effect very good control of broad-leaved weeds and grass weeds in crops such as maize, cereals, rice, canola, sunflower and soya without damaging the crop plants, an effect observed especially even at low rates of application.
  • the herbicidal compositions and synergistic herbicidal mixtures according to the invention can additionally be employed in a further number of crop plants for eliminating undesirable plants.
  • suitable crops are the following:
  • herbicidal compositions and synergistic herbicidal mixtures according to the invention can also be used in crops which tolerate the action of herbicides due to breeding, including genetic engineering methods.
  • the mixtures according to the invention, or the herbicidal compositions comprising them can be employed, for example, in the form of directly sprayable aqueous solutions, powders, suspensions, also highly-concentrated aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, materials for spreading or granules, by means of spraying, atomizing, dusting, spreading or pouring.
  • the use forms depend on the intended purposes; in any case, they should guarantee the finest possible distribution of the active ingredients according to the invention.
  • Suitable inert additives are mineral oil fractions of medium to high boiling point such as kerosene and diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. paraffins, tetrahy- dronaphthalene, alkylated naphthalenes and their derivatives, alkylated benzenes and their derivatives, alcohols such as methanol, ethanol, propanol, butanol and cyclohex- anol, ketones such as cyclohexanone, strongly polar solvents, such as N- methylpyrrolidone and water.
  • mineral oil fractions of medium to high boiling point such as kerosene and diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. paraffins, tetrahy- dronaphthalene, alkylated na
  • Aqueous use forms can be prepared from emulsion concentrates, suspensions, pastes, wettable powders or water-dispersible granules by adding water.
  • the substances as such or dissolved in an oil or solvent, can be homogenized in water by means of wetting agent, tackifier, dispersant or emul- sifier.
  • wetting agent emulsi- ons, pastes or oil dispersions
  • tackifier emul- sifier
  • dispersant or emul- sifier emul- sifier
  • concentrates composed of active substance, wetting agent, tackifier, dispersant or emulsifier and, if appropriate, solvent or oil, and these concentrates are suitable for dilution with water.
  • Suitable surfactants are the alkali metal, alkaline earth metal and ammonium salts of aromatic sulfonic acids, e.g. ligno-, phenol-, naphthalene- and dibutylnaphthalenesulfo- nic acid, and of fatty acids, of alkyl- and alkylaryl sulfonates, of alkyl sulfates, lauryl ether sulfates and fatty alcohol sulfates, and salts of sulfated hexa-, hepta- and octade- canols, and of fatty alcohol glycol ether, condensates of sulfonated naphthalene and its derivatives with formaldehyde, condensates of naphthalene, or of the naphthalenesul- fonic acids, with phenol and formaldehyde, polyoxyethylene octylphenyl ether, eth
  • Powders, materials for spreading and dusts can be prepared by mixing or concomitant- ly grinding the synergistic herbicidal mixture or the individual active ingredients with a solid carrier.
  • Granules e.g. coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active ingredients to solid carriers.
  • Solid carriers are mineral earths such as silicas, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, magnesium sulfate, magnesium oxide, ground synthetic material, fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas and products of vegetable origin such as cereal meal, tree bark meal, wood meal and nutshell meal, cellulose powders or other solid carriers.
  • concentrations of the mixtures according to the invention in the ready-to-use products can be varied within wide ranges.
  • the formulations comprise from 0.01 to 95% by weight, preferably 0.5 to 90% by weight, of the mixture according to the invention.
  • the components A) and B) and, if desired, C) can be formulated jointly, but also separately, and/or applied to the plants, their environment and/or seeds jointly or separately. It is preferable to apply the active ingredients simultaneously. However, it is also pos- sible to apply them separately.
  • herbicidal compositions and synergistic herbicidal mixtures according to the invention may be advantageous to apply the herbicidal compositions and synergistic herbicidal mixtures according to the invention, jointly or separately, with additional other crop protection agents, for example with pesticides or agents for controlling phyto- pathogenic fungi or bacteria.
  • additional other crop protection agents for example with pesticides or agents for controlling phyto- pathogenic fungi or bacteria.
  • miscibility with mineral salt solutions which are employed for treating nutritional and trace element deficiencies.
  • Non- phytotoxic oils and oil concentrates can also be added.
  • the mixtures according to the invention and the herbicidal compositions can be applied pre- or post-emergence. If the active ingredients are less well tolerated by certain crop plants, application techniques may be used in which the herbicidal compositions are sprayed, with the aid of the spray apparatus, in such a way that they come into as little contact, if any, with the leaves of the sensitive crop plants while reaching the leaves of undesirable plants which grow underneath, or the bare soil (post-directed, lay-by).
  • the herbicidal mixtures or compositions according to the invention are preferably applied by foliar application.
  • Application may be effected, for example, by usual spraying techniques with water as the carrier, using amounts of spray mixture of approx. 100 to 1000 l/ha.
  • the mixtures or compositions may also be applied by the so-called “low-volume” and “ultra-low-volume” methods, or in the form of so-called granules.
  • the synergistic herbicidal mixtures comprise components A), B) and, if desired, C) in such weight ratios that the synergistic effect takes place.
  • the ratios of component A) and B) in the mixture preferably range from 1:0.001 to 1:500, preferably from 1:0.01 to 1:100, particularly preferably from 1 :0.1 to 1:50.
  • the ratios of components A) and C) in the mixture preferably range from 1 :0.002 to 1:800, preferably from 1:0.003 to 1:160, particularly preferably from 1:0.02 to 1:160.
  • the rate of application of pure synergistic herbicidal mixture i.e. without formulation auxiliaries, amounts to 0.1 to 5000 g/ha, preferably 2 to 2000 g/ha, in particular 8 to 1500 g/ha, of active substance (a.s.), depending on the intended aim, the season, the target plants and growth stage.
  • the rate of application of the compound of the formula I is 0.1 to 100 g/ha, as a rule 1 to 50 g/ha, preferably 5 to 30 g/ha, of active substance (a.s.).
  • the preferred rate of application of component B) is 0.1 to 2000 g/ha, as a rule 1 to 1000 g/ha , preferably 5 to 500 g/ha, of active substance (a.s.)
  • the mixtures according to the invention were applied pre- or post-emergence (foliar treatment).
  • the herbicidal compounds of component B and, if desired, of component C were applied in the formulation in which they are present as commercially available product.
  • herbicidally active compounds of components A), B) and, if desired, C) were applied in succession or jointly, in the latter case in some cases as a tank mix and in some cases as a readymix, in the form of emulsions, aqueous solutions or suspensions, the vehicle being water (300 - 400 l/ha).
  • application was effected with the aid of a mobile plot sprayer.
  • the test period extended over 3 to 8 weeks, and the stands were also observed at later points in time. Damage by the herbicidal compositions was evaluated with reference to a scale of 0% to 100% in comparison with untreated control plots. 0 means no damage and 100 means complete destruction of the plants.
  • the value E at which only an additive effect of the individual active ingredients is to be expected was calculated by the method of S. R. Colby (Calculating synergistic and antagonistic responses of herbicide combinations, Weeds 15, 20 pp (1967)).
  • X Percentage of the herbicidal action of component A) at an application rate of a
  • Y Percentage of the herbicidal action of component B) at an application rate of b;
  • the herbicidal mixtures according to the invention exert a greater herbicidal action than would have been expected according to Colby on the basis of the observed effects of the individual components when used alone.

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

A synergistic herbicidal mixture comprising: A) [N-(5,7-Dimethoxy[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-2-methoxy-4-(trifluoromethyl)]-3-pyridinesulfonamid (I) or one of its environmentally compatible salts; B) and at least one herbicidal compound from the group of alloxydim, clethodim, cloproxydim, cycloxydim, butroxydim, clefoxydim, tepraloxydim, cyhalofop-butyl, fenthiapropethyl, fluazifop-P-butyl, isoxapyrifop, propaquizafop, quizalofop-ethyl, quizalofop-P-ethyl , quizalofop-tefuryl, flamprop-methyl, flamprop-isopropyl, imazapyr, imazapic, pyrithiobac-acid, pyrithiobac-sodium, bispyribac-sodium, KIH-6127 , pyribenzoxym, metosulam, azimsulfuron, bensulfuron-methyl, chlorsulfuron, cinosulfuron, cyclosulfamuron, ethoxysulfuron, flazasulfuron, halosulfuron-methyl, imazosulfuron, primisulfuron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyl, triflusulfuron-methyl, mesosulfuron, iodosulfuron, allidochlor (CDAA), benzoylprop-ethyl, bromobutide, chlorthiamid, diphenamid, etobenzanid (benzchlomet), fluthiamide, fosamin, monalide, picloram, benazolin, naptalame, diflufenzopyr, fluorochloridone, fluridone, flurtamone, norflurazon, amitrol, sulfosate, bilanafos (bialaphos), anilofos, mefenacet, dimethenamid, S-dimethenamid, alachlor, butachlor, butenachlor, diethatyl-ethyl, dimethachlor, metazachlor, pretilachlor, propachlor, prynachlor, terbuchlor, thenylchlor , xylachlor, butylate, cycloate, di-allate, dimepiperate, EPTC, esprocarb, molinate, pebulate, prosulfocarb, thiobencarb (benthiocarb), tri-allate , vernolate, benfuresate, perfluidone, asulam, carbetamid, chlorpropham, orbencarb, pronamid (propyzamid), propham, tiocarbazil, butralin, dinitramin, ethalfluralin, fluchloralin, oryzalin, prodiamine, dithiopyr thiazopyr, butamifos, chlorthal-dimethyl (DCPA), maleic hydrazide, aclonifen, bifenox, chlornitrofen (CNP), ethoxyfen, fluorodifen, fluoroglycofen-ethyl, fomesafen, furyloxyfen, nitrofen, nitrofluorfen, oxyfluorfen, oxadiargyl, oxadiazon, azafenidin, butafenacil, flumiclorac-pentyl, flumioxazin, flumipropyn, flupropacil, fluthiacet-methyl, sulfentrazone, thidiazimin, ET-751, JV 485, nipyraclofen, propanil, pyridate, pyridafol, bromofenoxim, dinoseb, dinoseb-acetate, dinoterb, DNOC, cyperquat-chloride, difenzoquat-methylsulfate, diquat, paraquat-dichloride, chlorbromuron, chlorotoluron, difenoxuron, dimefuron, diuron, ethidimuron, fenuron, isoproturon, isouron, methabenzthiazuron, methazole, metobenzuron, metoxuron, neburon, siduron, tebuthiuron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, desmetryn, dimethamethryn, hexazinone, prometon, prometryn, propazine, simazine, simetryn, terbumeton, terbutryn, terbutylazine, trietazine, metamitron, bromacil, lenacil, terbacil, desmedipham, phenmedipham, tridiphane, 2,4-DB, clomeprop, MCPB, triclopyr, chloramben, quinclorac dichlobenil, dalapon, ethofurnesate, chlorfenac (fenac), aziprotryn, barban, bensulide, benzthiazuron, benzo-fluor, buminafos, buthidazole, buturon, cafenstrole, chlorbufam, chlorfenprop-methyl, chloroxuron, cinmethylin, cumyluron, cycluron, cyprazine, cyprazole, dibenzyluron, dipropetryn, dymron, eglinazin-ethyl, endothall, ethiozin, flucabazone, fluorbentranil, flupoxam, isocarbamid, isopropalin, karbutilate, mefluidide, monuron, napropamide, napropanilide, nitralin, oxaciclomefone, phenisopham, piperophos, procyazine, profluralin, pyributicarb, secbumeton, sulfallate (CDEC), terbucarb, triaziflam, triazofenamid, trimeturon, 8-(2,6-Diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-9-hydroxy-7H-pyrazolo[1,2-d][1,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2-d][1,4,5]oxadiazepin-9-yl]ester or their environmentally compatible salts; and, if desired, C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, MG-191, MON-13900, Cyometrinil, Oxabetrinil, Fluxofenim, Flurazole, Naphta

Description

Synergistically acting herbicidal mixtures
Decription
The present invention relates to a synergistic herbicidal mixture comprising
A) [N-(5,7-Dimβthoxy[1 ,2,4]triazolo[1 ,5-a]pyrimidin-2-yl)-2-methoxy-4- (trifluoromethyl)]-3-pyridinesulfonamid I
Figure imgf000003_0001
or one of its environmentally compatible salts;
B) and at least one herbicidal compound from the group of alloxydim, ciethodim, cloproxydim, cycloxydim, butroxydim, clefoxydim, tepraloxydim, cyhalofop-butyl, fenthiapropethyl, fluazifop-P-butyl, isoxapyrifop, propaquizafop, quizalofop-ethyl, quizalofop-P-ethyl , quizalofop-tefuryl, flamprop-methyl, flamprop-isopropyl, ima- zapyr, imazapic, pyrithiobac-acid, pyrithiobac-sodium, bispyribac-sodium, KIH- 6127 , pyribenzoxym, metosulam, azimsulfuron, bensulfuron-methyl, chlorsulfu- ron, cinosulfuron, cyclosulfamuron.ethoxysulfuron, flazasulfuron, halosulfuron- methyl, imazosulfuron, primisulfuron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyi, triflusulfuron-methyl, mesosulfuron, iodosulfuron, allidochlor (CDAA), benzoylprop-ethyl, bromobutide, chlorthiamid, diphenamid, etobenzanid (benzchlomet), fluthiamide, fosamin , monalide, picloram, benazolin, naptalame, diflufenzopyr, fiuorochloridone, fluridone, flurtamone, norflurazon, amitrol, sul- fosate, bilanafos (bialaphos), anilofos , mefenacet, dimethenamid, S-dimethen- amid, alachlor, butachlor, butenachlor, diethatyl-ethyl, dimethachlor, metazachlor, pretilachlor, propachlor, prynachlor, terbuchlor, thenylchlor , xylachlor, butylate, cycloate, di-allate, dimepiperate, EPTC, esprocarb, molinate, pebulate, prosulfo- carb, thiobencarb (benthiocarb), tri-allate , vernolate, benfuresate, perfluidone, asuiam, carbetamid, chlorpropham, orbencarb, pronamid (propyzamid), propham, tiocarbazil, butralin, dinitramin, ethalfluralin, fluchloralin, oryzalin, prodiamine, di- thiopyr thiazopyr, butamifos, chlorthal-dimethyl (DCPA), maleic hydrazide, aclo- nifen, bifenox, chlornitrofen (CNP), ethoxyfen, fluorodifen, fluoroglycofen-ethyl, fomesafen, furyloxyfen, nitrofen, nitrofluorfen, oxyfluorfen, oxadiargyl, oxadiazon, azafenidin, butafenacil, flumiclorac-pentyl, flumioxa∑in, flumipropyn, flupropacil, fluthiacet-methyl, sulfentrazone, thidiazimin, ET-751, JV 485, nipyraclofen, pro- panil, pyridate, pyridafol, bromofenoxim, dinoseb, dinoseb-acetate, dinoterb.DNOC, cyperquat-chloride, difenzoquat-methylsulfate, diquat, paraquat- dichloride, chlorbromuron, chlorotoluron, difenoxuron, dimefuron, diuron, ethidimuron, fenuron, isoproturon, isouron, methabenzthiazuron, methazole, me- toben∑uron, metoxuron, neburon, siduron, tebuthiuron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, desmetryn, dimethamethryn, hexazinone, prometon, prometryn, propazine, simazine, simetryn, terbumeton, terbutryn, terbutylazine, trietazine, metamitron, bromacil, lenacil, terbacil, desmedipham, phen- medipham, tridiphane, 2,4-DB, clomeprop, ivlCPB, triclopyr, chloramben , quin- clorac dichlobenil, dalapon, ethofumesate, chlorfenac (fenac), aziprotryn, barban, bensulide, ben∑thiazuron, benzo-fluor, buminafos, buthidazole, buturon, cafen- strole, chlorbufam, chlorfenprop-methyl, chloroxuron, cinmethylin, cumyluron, cy- cluron, cyprazine, cypra∑ole, dibenzyluron, dipropetryn, dymron, eglina∑in-ethyl, endothall, ethio∑in, flucabazone, fluorbentranil, flupoxam, isocarbamid, isopro- palin, karbutilate, mefluidide, monuron, napropamide, napropanilide, nitralin, ox- aciclomefone, phenisopham, piperophos, procyazine, profluralin, pyributicarb, secbumeton, sulfallate (CDEC), terbucarb, triaziflam, triazofenamid,trimeturon, 8- (2,6-Diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-9-hydroxy-7H-pyrazolo[1,2- d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6-diethyl-4-methylphenyl)-1 ,2,4,5- tetrahydro-7-oxo-7H-pyrazolo[1 ,2-d][1 ,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts.
and, if desired,
C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, MG-191, MON-13900, Cyometrinil, Oxabetrinil, Fluxofenim, Flurazole, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible salts and esters, Isoxadifen and its environmentally compatible salts and esters, Cloquintocet and its environmentally compatible salts, esters and hydrates, 1-Ethyl-4-hydroxy-3-(1H-tetrazol-5-yl)-1H-quinolin-2- one, 4-Carboxymethyl-chroman-4-carboxylic acid, Λ/-(2-Methoxy-benzoyl)-4-(3- methyl-ureido)-benzenesulfonamide, (3-Oxo-isothiochroman-4-ylidenemethoxy)- acetic acid methyl ester.
The invention furthermore relates to herbicidal compositions comprising a herbicidally active amount of a synergistic herbicidal mixture as defined above and at least one liquid and/or solid carrier and, if desired, at least one surfactant. Moreover, the invention relates to a process for the preparation of these compositions and to a method of controlling undesirable vegetation.
In crop protection products, it is always desirable to increase the specific activity of an active ingredient and the reliability of action. It is an object of the present invention to increase the activity and/or selectivity of the compound according to formula I and its environmentally compatible salts against undesirable harmful plants.
We have found that this object is achieved by the mixtures defined at the outset. We have furthermore found herbicidal compositions which comprise these mixtures, processes for their preparation, and methods of controlling undesirable vegetation. In the last-mentioned cases, it is irrelevant whether the herbicidally active compounds of the components A),B) and, if desired, C) are formulated and applied jointly or separately and in which sequence they are applied in the case of separate application.
The mixtures according to the invention show a synergistic effect; the compatibility of the herbicidally active compounds of components A),B) and, if desired C) for certain crop plants is generally retained.
The compound of the formula I is disclosed in WO 02/36595. Mixtures with other herbicides are disclosed in Research Disclosure, July 2002, Number 459, No 459085.
The above mentioned compounds B) and/or C) are described, for example, in
- "Herbizide [Herbicides]", Hock, Fedtke, Schmidt, 1st edition, Thieme 1995 (s. "quinclorac" p. 238, "molinat" p. 32, "butachlor" p. 32, "pretilachlor" p. 32, "di- thiopyr" p. 32, "mefenacet" p. 32, "dimepiperate" p. 32, "bensulfuronmethyl" p. 31 , "pyrazosulfuron-ethyl" p. 31, "cinosulfuron" p. 31, "benfuresate" p. 233, "bro- mobutide" p. 243, "dymron" p. 243, "dimethyametryn" p. 118, "esprocarb" p. 229, "pyributicarb" p. 32, "cinemthylin" p. 32, "propanil" p. 32, "azimsulfuron (DPX-A-
8947)" p. 175, "chlorpropham" p. 205, "ethoxyfen" p. 30, "flumiclorac-pentyl" p. 35, "flupropacil" p. 143, "nipyraclofen" p. 145, "metosulam" p. 33, "ethamet- sulfuron-methyl" p. 36, "pyrithiobac acid" p. 181);
- "Agricultural Chemicals", Book II Herbicides, 1993 (s. "thiobencarb" p. 85,
"napropanilid" p. 49, "piperophos" p. 102, "anilofos" p. 241, "imazosulfuron (TH- 913)" p. 150, "etobenzamid (HW-52)" p. 54, "poast" p. 253, "focus" p. 222, "di- methenamid" p. 48, "sulfosate" p. 236, "2,4-DB" p. 10, "-P" p. 6, "flupoxam" p. 44, "prosulfocarb" p. 84, "metazac lor" p. 64, "flurtamone" p. 265, "bromofenoxim" p. 228, "fomesafen" p. 248, "flua∑ifop-P-butyl" p. 207, "quizalofop-P-ethyl" p. 210, "quizalofop-terfuryl" p. 211, "flumioxazin" p. 43, "flumipropyn" p. 267, "sulfentra- zone" p. 261, "thiazopyr" p. 226, "pyrithiobac-sodium" p. 266, "halosulfuron- methyl" p. 148, "rimsulfuron" p. 138, "triflusul-furon-methyl" p. 137, "primisulfuron- methyl" p. 147);
"Agricultural Chemicals", Book II Herbicides, 13th Edition (s. "carfenstole" p. 284, "ethoxy-sulfuron" p. 149, "pyriben∑oxym" p. 279, "diflufen∑opyr" p. 90, "ET-751" p. 278, "fluthiacet-methyl" p. 277, "imazapic" p. 160, "butenachlor" p. 54, "tiocar- bazil" p. 84, "fluthiamide" p. 62, "butroxydim" p. 259,)
"Short Review of Herbicides & PGRs 1991, Hodogaya Chemicals (s. "furyloxy- fen" p. 142, "triazofenamid" p. 268, "thenylchlorid (NSK-850)" p. 52, "cumyluron (JC-940)" p. 90, " (AC-92553)" p. 58, "buthidazole" p. 88, "cyprazole" p. 38, "allidochlor" p. 48, "benzoylprop-ethyl" p. 38, "chlorthiamid" p. 150, "diphenamid" p. 34, "flamprop-methyl" p. 40, "fosamin" p. 232, "monalide" p. 32, "naptalam" p. 36,
"pronamid" p. 34, "bialaphos" p. 234, "amitrol" p. 254, "clomeprop p. 20, "" p. 6, "fenoprop" p. 8, "MCPB" p. 8, "napropamide" p. 16, "triclopyr" p. 154, "chloram- ben" p. 28, "fluorochloridone" p. 266, "fluridone" p. 156, "asulam""p. 112, "barban" p. 100, "butylate" p. 106, "carbetamide" p. 36, "chlorobufam" p. 100, "cycloate" p. 108, "desmedipham" p. 104, "di-allate" p. 106, "EPTC" p. 108, "orbencarb" p. 112, "pebulate" p. 106, "phen-isopham" p. 118, "phenmedipham" p. 104, "propham" p. 100, "sulfallate" p. 110, "terbucarb" p. 102, "tri-allate" p. 108, "vernolate" p. 108, "alachlor" p. 46, "diethathyl-ethyl" p.48, "dimethachlor" p. 50, "propachlor" p. 44, "pymachlor" p. 44, "terbuchlor" p. 48, "xylachlor" p. 52, "alloxydim" p. 260, "ciethodim" p. 270, "cloproxydim" p. 268, "dalapon" p. 212, "ethofumesate" p.
124, "butralin" p. 58, "dinitramin" p. 56, "ethalfluralin" p. 60, "fluchloralin" p. 54, "isopropalin" p. 58, "nitralin" p. 58, "oryzalin" p. 60, "prodiamine" p. 62, "profluralin" p. 54, "dinoseb" p. 128, "dinoseb-acetate" p. 128, "dinoterb" p. 128, "DNOC" p. 126, "aclonifen" p. 146, "bifenox" p. 140, "chlornitrofen" p. 138, "difenoxuron" p. 76, "fluorodifen" p. 138, "fluoroglycofen-ethyl" p. 146, "nitrofen" p. 136, "nitrofluorfen" p. 140, "oxyfluorfen" p. 140, "cyperquat-chloride" p. 158, "difenzoquat-methylsulfate" p. 160, "diquat" p. 158, "paraquat-dichloride" p. 158, "benzthi-azuron" p. 82, "buturon" p. 66, "chlorbromuron" p. 72, "chloroxuron" p. 76, "chlorotoluron" p. 74, "cycluron" p. 84, "dimefuron" p. 88, "diuron" p. 70, "ethidimuron" p. 86, "fenuron" p. 64, "isoproturon" p. 80, "isouron" p. 88, "karbuti- late" p. 76, "methabenzthiazuron" p. 82, "metoxuron" p. 72, "monuron" p. 64, "neburon" p. 72, "siduron" p. 68, "tebuthiuron" p. 86, "trimeturon" p. 64, "isocar- bamid" p. 168, "imazapyr" p. 170, "imazaquin" p. 170, "methazole" p. 162, "oxadiazon" p. 162, "tridiphane" p. 266, "ioxynil" p. 148, "fenthiaprop-ethyl" p. 20, "isoxapyrifop" p. 22, "propaquizafop" p. 24, "quizalo-fop-ethyl" p. 20, "chlorfenac" p. 258, "chlorfenprop-methyl" p. 258, "chloridazon" p. 174, "maleic hydrazide" p. 162, "norflurazon" p. 174, "pyridate" p. 176, "picloram" p. 154, "chlorsulfuron" p. 92, "flazasulfuron" p. 96, "sulfometuron-methyi" p. 92, "tria-sulfuron" p. 94, "ametryn" p. 198, "atrazine" p. 188, "aziprotryne" p. 206, "cyanazine" p. 192, "cyprazine" p. 192, "desmetryne" p. 200, "dipropetryn" p. 202, "eglinazine-ethyl" p. 208, "hexazinone" p. 208, "procyazine" p. 192, "prometone" p. 196, "prometryn" p. 196, "propazine" p. 188, "secbumeton" p. 196, "simazine" p. 188, "simetryn" p. 196, "terbumeton" p. 204, "terbutryn" p. 198, "terbutylazine" p. 190, "trietazine" p. 188, "ethiozine" p. 210, "metamitron" p. 206, "bromacil" p. 180, "le- nacil" p. 180, "terbacil" p. 180, "bena∑olin" p. 262, "bensulide" p. 228, "ben- zofluor" p. 266, "butamifos" p. 228, "DCPA" p. 28, "dichlobenil" p. 148, "endothal" p. 264, "mefluidide" p. 306, "perfluidone" p. 260, "terbuchlor" p. 48);
"Global Herbicide Directory" First Edition, 1994 (s. "oxadi-argyl" p. 96);
"European Directory of Agrochemical Products" Volume 2 - Herbicides" Fourth Edition, (s. "buminafos" p. 255).
"The Pesticide Maunal,12t edition, 2000 (s. "bispyribac-sodium" p. 97, "cyclosul- famuron" p. 217, "pretiachlor" p. 755)
"Herbizide [Herbicides]", Hock, Fedtke, Schmidt, 1st edition, Thieme 1995 (s. "Dichlormid" p.263, "Benoxacor" p.263, "LAB-145138" p.263, "MG-191" p.263, "MON-13900" p.263, "Cyometrinil" p.265, "Oxabetrinil" p.265, "Fluxofenim" p.265, "Flurazole" p.265, "Naphtalicacidanhydride" p.265, "Fenchlorim" p.266,
"Fenchlorazol" p.266, Isoxadifen, "Cloquintocet" p.266.
Moreover, the compound "DEH-112" is disclosed in European Patent Application EP-A 302 203. The compound "tepraloxydim" is described in DE-A 33 36 140; the compound "fluorbentranil" in EP-A 84 893. Other compounds are known from "Brighton Crop Protection Conference - Weeds - 1993" (S. "thidiazimin" p. 29, "AC-322140" p. 41, "KIH- 6127" p. 47, "KIH-2023" p. 61, "metobenz-uron" p. 67). The compound "carfenstrole (CH-900)" is mentioned in EP-A 332 133. The compounds 1-Ethyl-4-hydroxy-3-(1H- tetrazol-5-yl)-1W-quinolin-2-one, 4-Carboxymethyl-chroman-4-carboxyIic acid, Λ/-(2- Methoxy-benzoyl)-4-(3-methyl-ureido)-benzenesulfonamide, (3-Oxo-isothiochroman-4- ylidenemethoxy)-acetic acid methyl ester are described e.g. in WO02/087322. "Mesosulfurone" is described in e.g. Phytoma (2002), 550, p. 52-54.
The compound of the formula I and/or the herbicidally active compounds and safeners from amongs groups B) and/or C) may also exist in the form of their environmentally compatible salts. Such salts are, in general, the salts of those cations, or the acid addition salts of those acids, whose cations, or anions, respectively, do not adversely affect the herbicidal action of the active ingredients.
Suitable cations are, in particular, ions of the alkali metals, preferably lithium, sodium and potassium, of the alkaline earth metals, preferably calcium and magnesium, and of the transition metals, preferably manganese, copper, zinc and iron, and also ammonium, it being possible in this case, if desired, for one to four hydrogen atoms to be replaced by C1-C4-alkyl, hydroxy-Cι-C4-alkyl, C -C -alkoxy-C1-C4-aIkyl, hydroxy-d-C4- alkoxy-Cι-C4-alkyl, phenyl or benzyl, preferably ammonium, isopropylammonium, di- methylammonium, diisopropylammonium, tetramethylammonium, tetrabutylammonium, 2-(2-hydroxyeth-1-oxy)eth-1-yl ammonium, di(2-hydroxyeth-1-yl)ammonium, trimethyl- benzylammonium, furthermore phosphonium ions, sulfonium ions, preferably tri(CrC4- alkyl)sulfonium and sulfoxonium ions, preferably, tri(Cι-C4-alkyl)sulfoxonium.
Anions of suitable acid addition salts are mainly chloride, bromide, fluoride, hydrogen sulfate, sulfate, dihydrogen phosphate, hydrogen phosphate, nitrate, hydrogen carbonate, carbonate, hexafluorosilicate, hexafluorophosphate, benzoate and the anions of C1-C4-alkanoic acids, preferably formate, acetate, propionate and butyrate.
Preferred herbicidal mixtures according to the invention are mixtures comprising component A) and
B) at least one herbicidal compound from the group of cycloxydim, tepraloxydim, cyhalofop-butyl, fluazifop-P-butyl, flamprop-methyl, flamprop-isopropyl, imazapyr, imazapic, pyrithiobac-sodium, bispyribac-sodium, metosulam, bensulfuron- methyl, chlorsulfuron, cinosulfuron, cyclosulfamuron, ethoxysulfuron, halosulfu- ron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyi, triflusulfuron- methyl, mesosulfuron, iodosulfuron, bromobutide, chlorthiamid, picloram, diflufenzopyr, fluorochloridone, sulfosate, mefenacet, dimethenamid, S- dimethenamid, alachlor, butachlor, metazachlor, pretilachlor, tri-allate , butralin, oryzalin, dithiopyr, thiazopyr, aclonifen, bifenox, fluoroglycofen-ethyl, oxadiargyl, oxadiazon, azafenidin, butafenacil, flumiclorac-pentyl, flumioxazin, fluthiacet- methyl, sulfentrazone, thidiazimin, ET-751, JV 485, nipyraclofen, propanil, pyri- date, pyridafol, paraquat-dichloride, chlorbromuron, chlorotoluron, diuron, isopro- turon, siduron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, prometryn, simazine, terbutylazine, metamitron, bromacil, 2,4-DB, clomeprop, , MCPB, tri- clopyr, chloramben , quinclorac dichlobenil, cafenstrole, cinmethylin, flucaba- zone, flupoxam, monuron, oxaciclomefone, triaziflam, tria∑ofenamid.trimeturon, 8-(2,6-Diethyl-4-methylphenyl)-1 ,2,4,5-tβtrahydro-9-hydroxy-7H-pyra∑olo[1 ,2- d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6-diethyl-4-methylphenyl)-1 ,2,4,5- tetrahydro-7-oxo-7H-pyrazoio[1 ,2-d][1,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts.
and, if desired,
C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, ivlG-191, MQN-13900, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl.
Particular preferred herbicidal mixtures according to the invention are mixtures com- prising component A) and
B) at least one herbicidal compound from the group of cycloxydim, tepraloxydim, flamprop-methyl, imazapyr, imazapic, metosulam, bensulfuron-methyl, chlorsul- furon, cyclosulfamuron, ethoxysulfuron, halosulfuron-methyl, rimsulfuron, sulfo- meturon-methyl, mesosulfuron, iodosulfuron, picloram, diflufenzopyr, fluorochloridone, sulfosate, dimethenamid, S-dimethenamid, alachlor, butachlor, metazachlor, pretilachlor, tri-allate , aclonifen, bifenox, fluoroglycofen-ethyl, buta- fenacil, propanil, pyridate, paraquat-dichloride, chlorbromuron, chlortoluron, di- uron, isoproturon, atrazine, cyanazine, simazine, 2,4-DB, quinclorac, dichlobenil, cinmethylin, flucabazone, flupoxam, 8-(2,6-Diethyl-4-methylphenyl)-1 ,2,4,5- tetrahydro-9-hydroxy-7H-pyrazolo[1 ,2-d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-
(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2- d][1 ,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts,
and, if desired,
C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, MG-191, MON-13900, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl. Very particular preferred herbicidal mixtures according to the invention are mixtures comprising component A) and
B) at least one herbicidal compound from the group of cycloxydim, tepraloxydim, flamprop-methyl, ima∑apyr, ima∑apic, metosulam, mesosulfuron, iodosulfuron, diflufen∑opyr, sulfosate, dimethenamid, S-dimethenamid, meta∑achlor, tri-allate , paraquat-dichloride, isoproturon, atrazine, cyanazine, 2,4-DB, quinclorac
or their environmentally compatible salts,
and, if desired,
C) at least one compound from the group of the safeners Benoxacor, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl.
In a further particular embodiment, the synergistic herbicidal mixture comprises component A) with
B) at least one herbicidal compound from the group of imazapyr, imazapic,
and, if desired,
C) Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl
In a further particular embodiment, the synergistic herbicidal mixture comprises component A) with
B) iodosulfuron,
and, if desired,
C) at least one compound from the group of the safeners Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates, in particular Cloquintocetmexyl.
For particular preferred embodiments, the respective preferences described above apply analogously. The present invention also extends to herbicidal compositions which comprise a herbicidally active amount of a synergistic herbicidal mixture (comprising components A), B) and, if desired, C) as described above), at least one liquid and/or solid carrier and, if desired, at least one surfactant.
The herbicidal compositions and synergistic herbicidal mixtures according to the invention can effect very good control of broad-leaved weeds and grass weeds in crops such as maize, cereals, rice, canola, sunflower and soya without damaging the crop plants, an effect observed especially even at low rates of application.
Taking into consideration the variety of application method in question, the herbicidal compositions and synergistic herbicidal mixtures according to the invention can additionally be employed in a further number of crop plants for eliminating undesirable plants. Examples of suitable crops are the following:
Allium cepa, Ananas comosus, Arachis hypogaea, Asparagus officinalis, Beta vulgaris ssp. altissima, Beta vulgaris ssp. rapa, Brassica napus var. napus, Brassica napus var. napobrassica, Brassica rapa var. silvestris, Camellia sinensis, Carthamus tinctorius, Carya illinoinensis, Citrus limon, Citrus sinensis, Coffea arabica (Coffea canephora, Coffea liberica), Cucumis sativus, Cynodon dactylon, Daucus carota, Elaeis guineen- sis, Fragaria vesca, Glycine max, Gossypium hirsutum, (Gossypium arboreum, Gossy- pium herbaceum, Gossypium vitifolium), Helianthus annuus, Hevea brasiliensis, Hor- deum vulgare, Humulus lupulus, Ipomoea batatas, Juglans regia, Lens culinaris, Linum usitatissimum, Lycopersicon lycopersicum, Malus spp., Manihot esculenta, Medicago sativa, Musa spp., Nicotiana tabacum (N.rustica), Olea europaea, Oryza sativa, Pha- seolus lunatus, Phaseolus vulgaris, Picea abies, Pinus spp., Pisum sativum, Prunus avium, Prunus persica, Pyrus communis, Ribes sylvestre, Ricinus communis, Saccha- rum officinarum, Secale cereale, Solanum tuberosum, Sorghum bicolor (s. vulgare), Theobroma cacao, Trifolium pratense, Triticum aestivum, Triticum durum, Vicia faba, Vitis vinifera und Zea mays.
Moreover, the herbicidal compositions and synergistic herbicidal mixtures according to the invention can also be used in crops which tolerate the action of herbicides due to breeding, including genetic engineering methods.
The mixtures according to the invention, or the herbicidal compositions comprising them, can be employed, for example, in the form of directly sprayable aqueous solutions, powders, suspensions, also highly-concentrated aqueous, oily or other suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, materials for spreading or granules, by means of spraying, atomizing, dusting, spreading or pouring. The use forms depend on the intended purposes; in any case, they should guarantee the finest possible distribution of the active ingredients according to the invention.
Suitable inert additives (auxiliaries) are mineral oil fractions of medium to high boiling point such as kerosene and diesel oil, furthermore coal tar oils and oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. paraffins, tetrahy- dronaphthalene, alkylated naphthalenes and their derivatives, alkylated benzenes and their derivatives, alcohols such as methanol, ethanol, propanol, butanol and cyclohex- anol, ketones such as cyclohexanone, strongly polar solvents, such as N- methylpyrrolidone and water.
Aqueous use forms can be prepared from emulsion concentrates, suspensions, pastes, wettable powders or water-dispersible granules by adding water. To prepare emulsi- ons, pastes or oil dispersions, the substances, as such or dissolved in an oil or solvent, can be homogenized in water by means of wetting agent, tackifier, dispersant or emul- sifier. However, it is also possible to prepare concentrates composed of active substance, wetting agent, tackifier, dispersant or emulsifier and, if appropriate, solvent or oil, and these concentrates are suitable for dilution with water.
Suitable surfactants are the alkali metal, alkaline earth metal and ammonium salts of aromatic sulfonic acids, e.g. ligno-, phenol-, naphthalene- and dibutylnaphthalenesulfo- nic acid, and of fatty acids, of alkyl- and alkylaryl sulfonates, of alkyl sulfates, lauryl ether sulfates and fatty alcohol sulfates, and salts of sulfated hexa-, hepta- and octade- canols, and of fatty alcohol glycol ether, condensates of sulfonated naphthalene and its derivatives with formaldehyde, condensates of naphthalene, or of the naphthalenesul- fonic acids, with phenol and formaldehyde, polyoxyethylene octylphenyl ether, ethoxy- lated isooctyl-, octyl- or nonylphenol, alkylphenyl and tributylphenyl polyglycol ether, alkylaryl polyether alcohols, isotridecyl alcohol, fatty alcohol/ethylene oxide condensa- tes, ethoxylated castor oil, polyoxyethylene alkyl ethers or polyoxypropylene alkyl e- thers, lauryl alcohol polyglycol ether acetate, sorbitol esters, lignin-sulfite waste liquors or methylcellulose.
Powders, materials for spreading and dusts can be prepared by mixing or concomitant- ly grinding the synergistic herbicidal mixture or the individual active ingredients with a solid carrier.
Granules, e.g. coated granules, impregnated granules and homogeneous granules, can be prepared by binding the active ingredients to solid carriers. Solid carriers are mineral earths such as silicas, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, magnesium sulfate, magnesium oxide, ground synthetic material, fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas and products of vegetable origin such as cereal meal, tree bark meal, wood meal and nutshell meal, cellulose powders or other solid carriers.
The concentrations of the mixtures according to the invention in the ready-to-use products can be varied within wide ranges. In general, the formulations comprise from 0.01 to 95% by weight, preferably 0.5 to 90% by weight, of the mixture according to the invention.
The components A) and B) and, if desired, C) can be formulated jointly, but also separately, and/or applied to the plants, their environment and/or seeds jointly or separately. It is preferable to apply the active ingredients simultaneously. However, it is also pos- sible to apply them separately.
Moreover, it may be advantageous to apply the herbicidal compositions and synergistic herbicidal mixtures according to the invention, jointly or separately, with additional other crop protection agents, for example with pesticides or agents for controlling phyto- pathogenic fungi or bacteria. Also of interest is the miscibility with mineral salt solutions which are employed for treating nutritional and trace element deficiencies. Non- phytotoxic oils and oil concentrates can also be added.
The mixtures according to the invention and the herbicidal compositions can be applied pre- or post-emergence. If the active ingredients are less well tolerated by certain crop plants, application techniques may be used in which the herbicidal compositions are sprayed, with the aid of the spray apparatus, in such a way that they come into as little contact, if any, with the leaves of the sensitive crop plants while reaching the leaves of undesirable plants which grow underneath, or the bare soil (post-directed, lay-by).
In the case of a post-emergence treatment of the plants, the herbicidal mixtures or compositions according to the invention are preferably applied by foliar application. Application may be effected, for example, by usual spraying techniques with water as the carrier, using amounts of spray mixture of approx. 100 to 1000 l/ha. The mixtures or compositions may also be applied by the so-called "low-volume" and "ultra-low-volume" methods, or in the form of so-called granules.
As a rule, the synergistic herbicidal mixtures comprise components A), B) and, if desired, C) in such weight ratios that the synergistic effect takes place. The ratios of component A) and B) in the mixture preferably range from 1:0.001 to 1:500, preferably from 1:0.01 to 1:100, particularly preferably from 1 :0.1 to 1:50. The ratios of components A) and C) in the mixture preferably range from 1 :0.002 to 1:800, preferably from 1:0.003 to 1:160, particularly preferably from 1:0.02 to 1:160.
The rate of application of pure synergistic herbicidal mixture, i.e. without formulation auxiliaries, amounts to 0.1 to 5000 g/ha, preferably 2 to 2000 g/ha, in particular 8 to 1500 g/ha, of active substance (a.s.), depending on the intended aim, the season, the target plants and growth stage.
The rate of application of the compound of the formula I is 0.1 to 100 g/ha, as a rule 1 to 50 g/ha, preferably 5 to 30 g/ha, of active substance (a.s.).
The preferred rate of application of component B) is 0.1 to 2000 g/ha, as a rule 1 to 1000 g/ha , preferably 5 to 500 g/ha, of active substance (a.s.)
The preferred application rate of the active ingredients of the component B) are compiled in Table 1.
The preferred application rate of the active ingredients of the optional component C) are compiled in Table 2.
Table 1
Figure imgf000014_0001
Figure imgf000015_0001
Table 2
Figure imgf000016_0001
Use examples
The mixtures according to the invention were applied pre- or post-emergence (foliar treatment). The herbicidal compounds of component B and, if desired, of component C were applied in the formulation in which they are present as commercially available product.
The herbicidally active compounds of components A), B) and, if desired, C) were applied in succession or jointly, in the latter case in some cases as a tank mix and in some cases as a readymix, in the form of emulsions, aqueous solutions or suspensions, the vehicle being water (300 - 400 l/ha). In the case of the field trials, application was effected with the aid of a mobile plot sprayer.
The test period extended over 3 to 8 weeks, and the stands were also observed at later points in time. Damage by the herbicidal compositions was evaluated with reference to a scale of 0% to 100% in comparison with untreated control plots. 0 means no damage and 100 means complete destruction of the plants.
The following examples will demonstrate the action of the herbicidal compositions which can be used according to the invention, without excluding the possibility of other uses.
In these examples, the value E at which only an additive effect of the individual active ingredients is to be expected was calculated by the method of S. R. Colby (Calculating synergistic and antagonistic responses of herbicide combinations, Weeds 15, 20 pp (1967)).
This was done using the formula
E = X + Y
100 where
X = Percentage of the herbicidal action of component A) at an application rate of a;
Y = Percentage of the herbicidal action of component B) at an application rate of b;
E = expected herbicidal action of component A) + B) at rates of application a + b (in %).
If the value observed exceeds the value E calculated in accordance with Colby's formula, then synergism is present.
The herbicidal mixtures according to the invention exert a greater herbicidal action than would have been expected according to Colby on the basis of the observed effects of the individual components when used alone.

Claims

We claim:
1. A synergistic herbicidal mixture comprising
A) [N-(5,7-Dimethoxy[1 ,2,4]triazolo[1 ,5-a]pyrimidin-2-yl)-2-methoxy-4- (trifluoromethyl)]-3-pyridinesulfonamid I
Figure imgf000018_0001
or its environmentally compatible salts;
and
B) at least one herbicidal compound from the group of alloxydim, ciethodim, cloproxydim, cycloxydim, butroxydi , clefoxydim, tepraloxydim, cyhalofop- butyl, fenthiapropethyl, fluazifop-P-butyl, isoxapyrifop, propaquizafop, qui- zalofop-ethyl, quizalofop-P-ethyl , quizalofop-tefuryl, flamprop-methyl, flam- prop-isopropyl, imazapyr, imazapic, pyrithiobac-acid, pyrithiobac-sodium, bispyribac-sodium, KIH-6127 , pyribenzoxym, metosulam, azimsulfuron, bensuifuron-methyl, chlorsulfuron, cinosulfuron, cyclosulfa- muron.ethoxysulfuron, flazasulfuron, halosulfuron-methyl, imazosulfuron, primisulfuron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron- methyi, triflusulfuron-methyl, mesosulfuron, iodosulfuron, allidochlor (CDAA), benzoylprop-ethyl, bromobutide, chlorthiamid, diphenamid, eto- benzanid (benzchlomet), fluthiamide, fosamin , monalide, picloram, benazolin, naptalame, diflufenzopyr, fluorochloridone, fluridone, flurtamone, norflurazon, amitrol, sulfosate, bilanafos (bialaphos), anilofos , mefenacet, dimethenamid, S-dimethen-amid, alachlor, butachlor, bu- tenachlor, diethatyl-ethyl, dimethachlor, metazachlor, , pretilachlor, propachlor, prynachlor, terbuchlor, thenylchlor , xylachlor, butylate, cycloate, di-allate, dimepiperate, EPTC, esprocarb, molinate, pebulate, prosulfocarb, thiobencarb (benthiocarb), tri-allate , vernolate, benfuresate, perfluidone, asuiam, carbetamid, chlorpropham, orbencarb, pronamid (propyzamid), propham, tiocarbazil, butralin, dinitramin, ethalfluralin, flu- chloralin, ory∑alin, prodiamine, dithiopyr thiazopyr, butamifos, chlorthal- dimethyl (DCPA), maleic hydrazide, aclonifen, bifenox, chlornitrofen (CNP), ethoxyfen, fluorodifen, fluoroglycofen-ethyl, fomesafen, furyloxyfen, nitrofen, nitrofluorfen, oxyfluorfen, oxadiargyl, oxadiazon, azafenidin, buta- fenacil, flumiclorac-pentyl, flumioxazin, flumipropyn, flupropacil, fluthiacet- methyl, sulfentrazone, thidiazimin, ET-751, J 485, nipyraclofen, propanil, pyridate, pyridafol, bromofenoxim, dinoseb, dinoseb-acetate, dinoterb.DNOC, cyperquat-chloride, difen∑oquat-rnethylsulfalβ, diquat, paraquat-dichloride, chlorbromuron, chlorotoluron, difenoxuron, dimefuron, diuron, ethidimuron, fenuron, , isoproturon, isouron, methabenzthia∑uron, methazole, metoben∑uron, metoxuron, neburon, siduron, tebuthiuron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, desmetryn, dimethamethryn, hexazinone, prometon, prometryn, propazine, sima∑ine, simetryn, terbumeton, terbutryn, terbutyla∑ine, trietazine, metamitron, bromacil, lenacil, terbacil, desmedipham, phenmedipham, tridiphane, 2,4-DB, clomeprop, MCPB, triclopyr, chloramben , quinclorac dichlobenil, dalapon, ethofumesate, chlorfenac (fenac), aziprotryn, barban, bens.ulide, benzthia- zuron, benzo-fluor, buminafos, buthidazole, buturon, cafenstrole, chlorbu- fam, chlorfenprop-methyl, chloroxuron, cinmethylin, cumyluron, cycluron, cyprazine, cyprazole, dibenzyluron, dipropetryn, dymron, eglinazin-ethyl, endothall, ethiozin, flucabazone, fluorbentranil, flupoxam, isocarbamid, iso- propalin, karbutilate, mefluidide, monuron, napropamide, napropanilide, ni- tralin, oxaciclomefone, phenisopham, piperophos, procyazine, profluralin, pyributicarb, secbumeton, sulfallate (CDEC), terbucarb, triaziflam, tria- zofenamid.trimeturon, 8-(2,6-Diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-9- hydroxy-7H-pyrazolo[1 ,2-d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6- diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2- d][1 ,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts,
and, if desired,
C) at least one compound from the group of the safeners Dichlormid,
Benoxacor, LAB-145138, MG-191, MON-13900, Cyometrinil, Oxabetrinil, Fluxofenim, Flurazole, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol,
Mefenpyr and its environmentally compatible salts and esters, Isoxadifen and its environmentally compatible salts and esters, Cloquintocet and its environmentally compatible salts, esters and hydrates, 1-Ethyl-4-hydroxy-3- (1 H-tetra∑ol-5-yl)-1 H-quinolin-2-one, 4-Carboxymethyl-chroman-4- carboxylic acid, A-(2-Methoxy-benzoyl)-4-(3-methyl-ureido)- benzenesulfonamide, (3-Oxo-isothiochroman-4-ylidenemethoxy)-acetic acid methyl ester.
2. A synergistic herbicidal mixture as claimed in claim 1 in which B) and C) are as follows
B) at least one herbicidal compound from the group of cycloxydim, tepraloxy- dim, cyhalofop-butyl, flua∑ifop-P-butyl, flamprop-methyl, flamprop-isopropyl, imazapyr, imazapic, pyrithiobac-sodium, bispyribac-sodium, metosulam, bensulfuron-methyl, chlorsulfuron, cinosulfuron, cyclosulfamuron, ethoxy- sulfuron, halosulfuron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyi, triflusulfuron-methyl, mesosulfuron, iodosulfuron, bromobutide, chlorthiamid, picloram, diflufenzopyr, fluorochloridone, sulfosate, mefena- cet, dimethenamid, S-dimethenamid, alachlor, butachlor, metazachlor, pre- tilachlor, tri-allate , butralin, oryzalin, dithiopyr, thiazopyr, aclonifen, bifenox, fluoroglycofen-ethyl, oxadiargyl, oxadiazon, azafenidin, butafenacil, flumiclorac-pentyl, flumioxazin, fluthiacet-methyl, sulfentrazone, thidi- azimin, ET-751 , JV 485, nipyraclofen, propanil, pyridate, pyridafol, paraquat-dichloride, chlorbromuron, chlorotoluron, diuron, isoproturon, siduron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, prometryn, simazine, terbutylazine, metamitron, bromacil, 2,4-DB, clomeprop, , MCPB, triclopyr, chloramben , quinclorac dichlobenil, cafenstrole, cinmethylin, flu- cabazone, flupoxam, monuron, oxaciclomefone, triaziflam, triazofena- mid.trimeturon, 8-(2,6-Diethyl-4-methylphenyl)-1 ,2,4,5-tetrahydro-9- hydroxy-7H-pyrazolo[1 ,2-d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6- diethyl-4-methylphenyI)-1 ,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2- d][1 ,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts,
C) at least one compound from the group of the safeners Dichlormid,
Benoxacor, LAB-145138, MG-191 , MON-13900, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates.
3. A synergistic herbicidal mixture as claimed in claim 1 in which B) and C) are as follows: B) at least one herbicidal compound from the group of cycloxydim, tepraloxy- dim, flamprop-methyl, imazapyr, imazapic, metosulam, bensulfuron- methyl, chlorsulfuron, cyclosulfamuron, ethoxysulfuron, halosulfuron- methyl, rimsulfuron, sulfometuron-methyi, mesosulfuron, iodosulfuron, picloram, diflufenzopyr, fluorochloridone, sulfosate, dimethenamid, S- dimethenamid, alachlor, butachlor, meta∑achlor, pretilachlor, tri-allate , aclonifen, bifenox, fluoroglycofen-ethyl, butafenacil, propanil, pyridate, paraquat-dichloride, chlorbromuron, chlortoluron, diuron, isoproturon, atra∑ine, cyanazine, simazine, 2,4-DB, quinclorac, dichlobenil, cinmethylin, flucaba∑one, flupoxam, 8-(2,6-Diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-
9-hydroxy-7H-pyra∑olo[1 ,2-d][1 ,4,5]oxadia∑epin-7-one, pivalicacid-[8-(2,6- diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyra∑olo[1,2- d][1 ,4,5]oxadia∑epin-9-yl]ester
or their environmentally compatible salts,
C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, MG-191, MON-13900, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates.
4. A synergistic herbicidal mixture as claimed in claim 1 in which B) and C) are as follows:
B) at least one herbicidal compound from the group of cycloxydim, tepraloxy- dim, flamprop-methyl, imazapyr, imazapic, metosulam, mesosulfuron, iodosulfuron, diflufenzopyr, sulfosate, dimethenamid, S-dimethenamid, metazachlor, tri-allate , paraquat-dichloride, isoproturon, atrazine, cyanazine, 2,4-DB, quinclorac
or their environmentally compatible salts,
C) at least one compound from the group of the safeners Benoxacor,
Mefenpyr and its environmentally compatible esters, Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates.
5. A synergistic herbicidal mixture as claimed in claim 1 in which B) and C) are as follows:
B) at least one herbicidal compound from the group of imazapyr, imazapic,
C) Cloquintocet and its environmentally compatible esters and hydrates.
6. A synergistic herbicidal mixture as claimed in claim 1 in which B) and C) are as follows:
B) iodosulfuron,
C) at least one compound from the group of the safeners Isoxadifen and its environmentally compatible esters, Cloquintocet and its environmentally compatible esters and hydrates.
7. Synergistic herbicidal mixture as claimed in any of claims 1 to 6, wherein component A) and B) are present in a weight ratio of 1:0.001 to 1:500.
8. Synergistic herbicidal mixture as claimed in any of claims 1 to 7, wherein component A) and component C) are present in a weight ratio of 1 :0.002 to 1 :800.
9. A herbicidal composition comprising a herbicidally active amount of a synergistic herbicidal mixture as claimed in any of claims 1 to 8, at least one inert liquid and/or solid carrier and, if desired, at least one surfactant.
10. A process for the preparation of a herbicidal composition as claimed in claim 9, wherein component A), component B), if desired, component C), at least one inert liquid and/or solid carrier and, if appropriate, a surfactant are mixed.
11. A method of controlling undesired vegetation, which comprises applying a synergistic herbicidal mixture as claimed in any of claims 1 to 8 before, during and/or after the emergence of undesired plants simultaneously or in succession.
12. A method of controlling undesired vegetation as claimed in claim 11 , wherein the leaves of the crop plants and of the undesired plants are treated. Synergistically acting herbicidal mixtures
Abstract
A synergistic herbicidal mixture comprising
A) [N-(5,7-Dimethoxy[1 ,2,4]tria∑oIo[1 ,5-a]pyrimidin-2-yl)-2-rnethoxy-4- (trifluoromethyl)]-3-pyridinesulfonamid I
Figure imgf000023_0001
I
or one of its environmentally compatible salts;
B) and at least one herbicidal compound from the group of alloxydim, ciethodim, cloproxydim, cycloxydim, butroxydim, clefoxydim, tepraloxydim, cyhalofop-butyl, fenthiapropethyl, fluazifop-P-butyl, isoxapyrifop, propaquizafop, quizalofop-ethyl, quizalofop-P-ethyl , quizalofop-tefuryl, flamprop-methyl, flamprop-isopropyl, imazapyr, imazapic, pyrithiobac-acid, pyrithiobac-sodium, bispyribac-sodium, KIH- 6127 , pyribenzoxym, metosulam, azimsulfuron, bensulfuron-methyl, chlorsulfu- ron, cinosulfuron, cyclosulfamuron.ethoxysulfuron, flazasulfuron, halosulfuron- methyl, imazosulfuron, primisulfuron-methyl, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyi, triflusulfuron-methyl, mesosulfuron, iodosulfuron, allidochlor (CDAA), benzoylprop-ethyl, bromobutide, chlorthiamid, diphenamid, etobenzanid (benzchlomet), fluthiamide, fosamin , monalide, picloram, benazolin, naptalame, diflufenzopyr, fluorochloridone, fluridone, flurtamone, norflurazon, amitrol, sulfosate, bilanafos (bialaphos), anilofos , mefenacet, dimethenamid, S-dimethen- amid, alachlor, butachlor, butenachlor, diethatyl-ethyl, dimethachlor, metazachlor, , pretilachlor, propachlor, prynachlor, terbuchlor, thenylchlor , xylachlor, butylate, cycloate, di-allate, dimepiperate, EPTC, esprocarb, molinate, pebulate, prosulfo- carb, thiobencarb (benthiocarb), tri-allate , vemolate, benfuresate, perfluidone, asuiam, carbetamid, chlorpropham, orbencarb, pronamid (propyzamid), propham, tiocarbazil, butralin, dinitramin, ethalfluralin, fluchloralin, ory∑alin, prodia- mine, dithiopyr thiazopyr, butamifos, chlorthal-dimethyl (DCPA), maleic hy- drazide, aclonifen, bifenox, chlornitrofen (CNP), ethoxyfen, fluorodifen, fluorogly- cofen-ethyl, fomesafen, furyloxyfen, nitrofen, nitrofluorfen, oxyfluorfen, oxadiar- gyl, oxadiazon, a∑afenidin, butafenacil, flumiclorac-pentyl, flumioxazin, flumipro- pyn, flupropacil, fluthiacet-methyl, sulfentrazone, thidiazimin, ET-751, JV 485, nipyraclofen, propanil, pyridate, pyridafol, bromofenoxim, dinoseb, dinoseb- acetate, dinoterb.DNOC, cyperquat-chloride, difenzoquat-methylsulfate, diquat, paraquat-dichloride, chlorbromuron, chlorotoluron, difenoxuron, dimefuron, di- uron, ethidimuron, fenuron, isoproturon, isouron, methabenzthiazuron, metha-
∑ole, metoben∑uron, metoxuron, neburon, siduron, tebuthiuron, ioxynil, chloridazon, ametryn, atrazine, cyanazine, desmetryn, dimethamethryn, hexazinone, prometon, prometryn, propazine, simazine, simetryn, terbumeton, terbutryn, terbutylazine, trietazine, metamitron, bromacil, lenacil, terbacil, desmedipham, phenmedipham, tridiphane, 2,4-DB, clomeprop, MCPB, triclopyr, chloramben , quinclorac dichlobenil, dalapon, ethofumesate, chlorfenac (fenac), aziprotryn, barban, bensulide, ben∑thia∑uron, benzo-fluor, buminafos, buthidazole, buturon, cafenstrole, chlorbufam, chlorfenprop-methyl, chloroxuron, cinmethylin, cumylu- ron, cycluron, cypra∑ine, cyprazole, dibenzyluron, dipropetryn, dymron, eglinazin- ethyl, endothall, ethiozin, flucabazone, fluorbentranil, flupoxam, isocarbamid, iso- propalin, karbutilate, mefluidide, monuron, napropamide, napropanilide, nitralin, oxaciclomefone, phenisopham, piperophos, procyazine, profluralin, pyributicarb, secbumeton, sulfallate (CDEC), terbucarb, triaziflam, triazofenamid.trimeturon, 8- (2,6-Diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-9-hydroxy-7H-pyrazolo[1,2- d][1 ,4,5]oxadiazepin-7-one, pivalicacid-[8-(2,6-diethyl-4-methylphenyl)-1 ,2,4,5- tetrahydro-7-oxo-7H-pyrazo!o[1,2-d][1,4,5]oxadiazepin-9-yl]ester
or their environmentally compatible salts.
and, if desired,
C) at least one compound from the group of the safeners Dichlormid, Benoxacor, LAB-145138, MG-191, MON-13900, Cyometrinil, Oxabetrinil, Fluxofenim, Flurazole, Naphtalicacidanhydride, Fenchlorim, Fenchlorazol, Mefenpyr and its environmentally compatible salts and esters, Isoxadifen and its environmentally compatible salts and esters, Cloquintocet and its environmentally compatible salts, esters and hydrates, 1-Ethyl-4-hydroxy-3-(1H-tetrazol-5-yI)-1H-quinolin-2- one, 4-Carboxymethyl-chroman-4-carboxylic acid, /V-(2-Methoxy:benzoyl)-4-(3- methyl-ureido)-benzenesulfonamide, (3-Oxo-isothiochroman-4-ylidenemethoxy)- acetic acid methyl ester.
Compositions comprising these mixtures, processes for the preparation of these compositions, and their use for controlling undesired plants.
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