Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
  • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
  • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
  • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
  • C07D213/79—Acids; Esters
• • 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
  • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
  • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
• • 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
  • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
  • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
  • A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/50—1,3-Diazoles; Hydrogenated 1,3-diazoles
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines
• • 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
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/647—Triazoles; Hydrogenated triazoles
  • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• • 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
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
• • 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
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
• • 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
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
• • 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
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
  • A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
  • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
  • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof

Definitions

• This invention concerns a synergistic herbicidal composition containing (a) an herbicidal pyridine or pyrimidine carboxylic acid component and (b) a cereal or rice herbicide component.
• herbicidal active ingredients have been shown to be more effective in combination than when applied individually and this is referred to as “synergism.”
• ‘synergism’ [is] an interaction of two or more factors such that the effect when combined is greater than the predicted effect based on the response of each factor applied separately.”
• the present invention is based on the discovery that certain cereal or rice herbicides and certain pyridine or pyrimidine carboxylic acids, already known individually for their herbicidal efficacy, display a synergistic effect when applied in combination.
• the herbicidal compounds forming the synergistic composition of this invention are independently known in the art for their effects on plant growth.
• the present invention concerns a synergistic herbicidal mixture comprising an herbicidally effective amount of (a) a first herbicide selected from the group of a pyridine or a pyrimidine carboxylic acid of the formula (I)
• the present invention also concerns herbicidal compositions for and methods of controlling the growth of undesirable vegetation, particularly in wheat, rye, barley, oats, triticale and rice, and the use of these synergistic compositions.
• the species spectra of the compounds of the synergistic mixture i.e., the weed species which the respective compounds control, are broad and highly complimentary.
• a combination of diflufenican, optionally with flufenacet, and a pyridine or pyrimidine carboxylic acid of the formula (I) exhibits a synergistic action in the control of blackgrass ( Alopecurus myosuroides L; ALOMY), windgrass ( Apera spica - venti L; APESV), wild oats ( Avena fatua L; AVEFA), annual ryegrass ( Lolium multiflorum L; LOLMG), lamb's-quarters ( Chenopodium album L; CHEAL), wild mustard ( Sinapis arvensis L SINAR), chickweed ( Stellaria media L; STEME), scented mayweed ( Matricaria chamomila L; MATCH) at application rates lower than the rates of the individual compounds.
• a mixture of an acetyl coenzyme A carboxylase-inhibiting herbicide such as clodinafop, fenoxaprop-P, pinoxaden or tralkoxydim, and a pyridine or pyrimidine carboxylic acid of the formula (I) exhibits a synergistic action in control of blackgrass ( Alopecurus myosuroides L; ALOMY), windgrass ( Apera spica - venti L; APESV), wild oats ( Avena fatua L; AVEFA), annual ryegrass ( Lolium multiflorum L; LOLMG), littleseed Canarygrass ( Phalaris minor L; PHAMI) at application rates lower than the rates of the individual compounds.
• blackgrass Alopecurus myosuroides L; ALOMY
• windgrass Apera spica - venti L; APESV
• wild oats Avena fatua L; AVEFA
• the mixture of an acetolactate synthase inhibiting herbicide such as amidosulfuron, chlorsulfuron, flupyrsulfuron, iodosulfuron, mesosulfuron, mesosulfuron plus iodosulfuron, metsulfuron, sulfosulfuron, thifensulfuron or tribenuron of the sulfonylureas class; propoxycarbazone or flucarbazone of the sulfonylaminocarbonyl-triazolinone class; imazamethabenz of the imidazolinones class; florasulam or pyroxsulam of the triazolopyrimidines class; and a pyridine or pyrimidine carboxylic acid of the formula (I) shows a synergistic action in control of canola ( Brassica napus L; BRSNN), Canada thistle ( Cirsium arven)
• a phytoene desaturase-inhibiting herbicide such as beflubutamid or picolinafen
• a pyridine or pyrimidine carboxylic acid of the formula (I) has resulted in an unexpected synergistic action in the control of kochia ( Kochia scoparia L; KCHSC), wild mustard ( Sinapis arvensis L; SINAR), ivy-leaved speedwell ( Veronica hederifolia L; VERHE), bird's-eye speedwell ( Veronica persica L; VERPE), wild pansy ( Viola tricolor L; VIOTR), black mustard ( Brassica nigra L; BRSNI), cut-leaf geranium ( Geranium dissectum L; GERDI), wild buckwheat ( Polygonum convolvulus L; POLCO), lady's-thumb ( Polygonum persicaria L; POLPE), chickweed ( Stellaria media L; STEME) at application rates
• the combinations of photosystem II-inhibiting herbicides such as bentazone, bromoxynil, chlorotoluron, isoproturon or metribuzin, and a pyridine or pyrimidine carboxylic acid of the formula (I) show a synergistic action in control of black mustard ( Brassica nigra L; BRSNI), wild buckwheat ( Polygonum convolvulus L; POLCO), chickweed (Stellaria media L; STEME), scented mayweed ( Matricaria chamomila L; MATCH), bird's-eye speedwell ( Veronica persica L; VERPE), wild pansy ( Viola tricolor L; VIOTR), kochia ( Kochia scoparia L; KCHSC), Russian thistle ( Salsola iberica L; SASKR) at application rates lower than the rates of the individual compounds.
• black mustard Brassica nigra L; BRSNI
• wild buckwheat Polygonum convolvulus L; POLCO
• a combination of bromoxynil, optionally with pyrasulfotole, and a pyridine or pyrimidine carboxylic acid of the formula (I) shows a synergistic action in control of scented mayweed ( Matricaria chamomila L; MATCH), bird's-eye speedwell ( Veronica persica L; VERPE), wild pansy ( Viola tricolor L; VIOTR), kochia ( Kochia scoparia L; KCHSC) at application rates lower than the rates of the individual compounds.
• a plant growth regulator such as chlormequat, indol-3-ylacetic acid or 4-indol-3-ylbutyric acid
• a pyridine or pyrimidine carboxylic acid of the formula (I) has resulted in an unexpected synergistic action in the control of kochia ( Kochia scoparia L; KCHSC), black mustard ( Brassica nigra L; BRSNI), cut-leaf geranium ( Geranium dissectum L; GERDI), wild buckwheat ( Polygonum convolvulus L; POLCO), chickweed ( Stellaria media L; STEME), scented mayweed ( Matricaria chamomila L; MATCH) at application rates lower than the rates of the individual compounds.
• kochia Kochia scoparia L; KCHSC
• black mustard Brassica nigra L; BRSNI
• cut-leaf geranium Geranium dissectum L; GERDI
• Wild buckwheat Poly
• the mixtures of isoxaben, a cell wall biosynthesis inhibiting herbicide, or prosulfocarb, a lipid biosynthesis inhibiting herbicide, and a pyridine or pyrimidine carboxylic acid of the formula (I) have resulted in an unexpected synergistic action in the control of black mustard ( Brassica nigra L; BRSNI), chickweed ( Stellaria media L; STEME), scented mayweed ( Matricaria chamomila L; MATCH), bird's-eye speedwell ( Veronica persica L; VERPE), wild pansy ( Viola tricolor L; VIOTR), Russian thistle ( Salsola iberica L; SASKR) at application rates lower than the rates of the individual compounds.
• black mustard Brassica nigra L; BRSNI
• chickweed Stellaria media L; STEME
• scented mayweed Matricaria chamomila L; MATCH
• bird's-eye speedwell Veronica persica L; VERPE
• an auxinic herbicide such as aminopyralid, optionally with picolinafen or diflufenican, dicamba, dichlorprop-P, MCPA, quinclorac and a pyridine or pyrimidine carboxylic acid of the formula (I) exhibits a synergistic action in control of chickweed ( Stellaria media L; STEME), scented mayweed ( Matricaria chamomila L; MATCH), bird's-eye speedwell ( Veronica persica L; VERPE), wild pansy ( Viola tricolor L; VIOTR), lady's-thumb ( Polygonum persicaria L; POLPE), kochia ( Kochia scoparia L; KCHSC), black mustard ( Brassica nigra L; BRSNI), cut-leaf geranium ( Geranium dissectum L; GERDI), wild buckwheat (Polygonur convolvulus L; POLCO) at application rates lower than
• an EPSP (5-enolpyruvylshikimate-3-phosphate) synthase inhibitor herbicide such as glyphosate and a pyridine or pyrimidine carboxylic acid of the formula (I) exhibits a synergistic action in control of wild pansy ( Viola tricolor L; VIOTR), kochia ( Kochia scoparia L; KCHSC), Russian thistle ( Salsola iberica L; SASKR) at application rates lower than the rates of the individual compounds.
• 4-Amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid and 6-amino-5-chloro-2-(4-chloro-2-fluoro-3-methoxyphenyl)-pyrimidine-4-carboxylic acid derivatives are the especially preferred pyridine or pyrimidine carboxylic acids of the formula (I) for the control of weeds in cereal crops including spring, winter and durum wheat, spring and winter barley, oats, and triticale.
• acetolactate synthase (ALS)-inhibiting herbicide such as penoxsulam of the triazolopyrimidine class; bispyribac-sodium of the pyrimidinylbenzoate chemical class; bensulfuron-methyl, halosulfuron-methyl, or pyrazosulfuron-ethyl of the sulfonylurea chemical class; or imazethapyr or imazamox of the imidazolinone chemical class; and a pyridine carboxylic acid of the formula (I) has resulted in an unexpected synergistic action in the control of Ipomoea hederacea (L.) JACQ.
• ALS acetolactate synthase
• IPHE Echinochloa species
• ISCRU Ischaemum rugosum SALISB.
• Leptochloa chinensis L.
• LEFCH Leptochloa chinensis
• Cyperus esculentus L. CYPES
• Cyperus iria L. CYPIR
• Eleocharis kuroguwai OHWI ELOKU
• Glyphosate an amino acid biosynthesis inhibitor which specifically inhibits 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase, in combination with a pyridine carboxylic acid of the formula (I), produces synergistic activity on Polygonur pensylvanicur L. (POLPY), CYPES, CYPIR, Digitaria sanguinalis (L.) SCOP. (DIGSA), and LEFCH at application rates lower than the rates of the individual compounds.
• PEP 5-enolpyruvylshikimate-3-phosphate
• Synergistic activity between pyridine carboxylic acids of the formula (I) in combination with compounds of the imidazolinone chemistry class or in combination with glyphosate will be particularly useful in crops where imidazolinone or glyphosate resistant crop varieties are being employed.
• a mixture of carfentrazone-ethyl, a protoporphyrinogen IX oxidase (PROTOX) inhibiting herbicide, and a pyridine carboxylic acid of the formula (I) exhibits a synergistic action in control POLPE, CYPES, and CYPIR at application rates lower than the rates of the individual compounds as well as an increased speed of activity on CYPES.
• auxinic herbicide such as triclopyr, MCPA, or quinclorac
• a pyridine carboxylic acid of the formula (I) has resulted in an unexpected synergistic action in the control of Marsilea crenata PRESL (MASCR), CYPSS, FIMMI, ECHSS, LEFCH, Brachiaria platyphylla (BRISEB.) NASH (BRAPP), and ISCRU at application rates lower than the rates of the individual compounds.
• an auxin transport inhibitor such as diflufenzopyr and a pyridine carboxylic acid of the formula (I) has resulted in an unexpected synergistic action in the control of IPOHE, LEFCH, and CYPIR at application rates lower than the rates of the individual compounds.
• 4-Amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid derivatives, 4-amino-3-chloro-6-(2,4-dichloro-3-methoxyphenyl)-pyridine-2-carboxylic acid derivatives, and 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-ethoxyphenyl)pyridine-2-carboxylic acid derivatives are the especially preferred pyridine carboxylic acids of the formula (I) for the control of weeds in transplanted, water seeded, and direct seeded rice.
• pyridine and pyrimidine carboxylic acids are a new class of compounds having herbicidal activity.
• a number of pyridine and pyrimidine carboxylic acid compounds are described in U.S. Pat. No. 7,300,907 (B2) and U.S. Pat. No.
• 7,314,849 (B2), including 6-amino-5-chloro-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid methyl ester, 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid methyl ester and 4-amino-3-chloro-6-(2,4-dichloro-3-methoxyphenyl)pyridine-2-carboxylic acid methyl ester.
• the pyridine or pyrimidine carboxylic acid of the formula (I) controls annual grass weeds including Setaria, Pennisetum , and Echinochloa ; broadleaf weeds such as Papaver, Galium, Lamium, Kochia, Amaranthus, Aeschynomene, Sesbania , and Monochoria ; and sedge species such as Cyperus and Scirpus.
• Amidosulfuron is the common name for N-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-N-methylmethanesulfonamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Amidosulfuron controls a wide range of broadleaf weeds, particularly cleavers.
• Aminopyralid is the common name for 4-amino-3,6-dichloro-2-pyridinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Aminopyralid controls annual and perennial broadleaf weeds in grassland.
• Beflubutamid is the common name for 2-[4-fluoro-3-(trifluoromethyl)-phenoxy]-N-(phenylmethyl)butanamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Beflubutamid provides pre- and early post-emergence control of broadleaf weeds in wheat and barley.
• Bensulfuron is the common name for 2-[[[[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]methyl]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Bensulfuron-methyl controls annual and perennial weeds and sedges in flooded or wetland rice.
• Bentazone is the common name for 3-(1-methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Bentazone controls broadleaf weeds in spring and winter cereals.
• Bispyribac is the common name for 2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Bispyribac-sodium controls grasses, sedges and broadleaf weeds in direct-seeded rice.
• Bromoxynil is the common name for 3,5-dibromo-4-hydroxybenzonitrile. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Bromoxynil is used for the post-emergence control of annual broadleaf weeds.
• Carfentrazone is the common name for ⁇ ,2-dichloro-5-[4-(difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl]-4-fluorobenzenepropanoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Carfentrazone-ethyl controls a wide range of broadleaf weeds in cereals and rice.
• Chlormequat is the common name for 2-chloro-N,N,N-trimethyl-ethanaminium chloride. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Chlormequat is a plant growth regulator for producing sturdier plants.
• Chlorsulfuron is the common name for 2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]benzenesulfonamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Chlorsulfuron controls a wide range of broadleaf weeds and some annual grasses.
• Chlorotoluron is the common name for N′-(3-chloro-4-methylphenyl)-N,N-dimethylurea. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Chlorotoluron controls a wide range of broadleaf weeds and some annual grasses in winter cereals.
• Clodinafop is the common name for (2R)-2-[4-[(5-chloro-3-fluoro-2-pyridinyl)oxy]phenoxy]propanoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Clodinafop controls a wide range of annual grasses.
• Clomazone is the common name for 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Clomazone controls grass weeds and broadleaf weeds.
• Cyhalofop is the common name for (2R)-2-[4-(4-cyano-2-fluorophenoxy)-phenoxy]propanoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Cyhalofop-butyl controls grass weeds in rice.
• Dicamba is the common name for 3,6-dichloro-2-methoxybenzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Dicamba controls annual and perennial broadleaf weeds in cereals.
• Dichlorprop P is the common name for (2R)-2-(2,4-dichlorophenoxy) propanoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Dichlorprop controls a wide range of annual and perennial broadleaf weeds in cereals and grassland.
• Diflufenican is the common name for N-(2,4-difluorophenyl)-2-[3-(trifluoromethyl)phenoxy]-3-pyridinecarboxamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Diflufenican controls annual grass weeds and certain broadleaf weeds including Galium, Veronica and Viola spp.
• Diflufenzopyr is the common name for 2-[1-[[[(3,5-difluorophenyl)-amino]carbonyl]hydrazono]ethyl]-3-pyridinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Diflufenzopyr controls annual and perennial broadleaf weeds.
• Fenoxaprop is the common name for 2-[4-[(6-chloro-2-benzoxazolyl)-oxy]phenoxy]propanoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Fenoxaprop controls a wide range of annual and perennial grasses.
• Florasulam is the common name for N-(2,6-difluorophenyl)-8-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Florasulam controls broadleaf weeds, especially Galium aparine, Stellaria media, Polygonum convolvulus, Matricaria spp. and various cruciferae.
• Flucarbazone is the common name for 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-[[2-(trifluoromethoxy)phenyl]sulfonyl]-1H-1,2,4-triazole-1-carboxamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Flucarbazone controls grass weeds, especially Avena fatua and Setaria viridis and some broadleaf weeds.
• Flufenacet is the common name for N-(4-fluorophenyl)-N-(l-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Flufenacet controls a broad spectrum of grass weeds and certain broadleaf weeds.
• Flupyrsulfuron is the common name for 2-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-6-(trifluoromethyl)-3-pyridinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Flupyrsulfuron controls black-grass and some broadleaf weeds.
• Glyphosate is the common name for N-(phosphonomethyl)glycine. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Glyphosate controls a wide range of annual and perennial, broadleaf and grass weeds.
• Halosulfuron is the common name for 3-chloro-5-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-1H-pyrazole-4-carboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Halosulfuron-methyl controls annual broadleaf weeds and nutsedge in rice.
• Imazamethabenz is the common name for 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-4(or 5)-methylbenzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Imazamethabenz controls Alopecurus, Apera and Avena in wheat, barley and rye.
• Imazamox is the common name for 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Imazamox is used for broad spectrum weed control in a variety of crops.
• Imazethapyr is the common name for 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Imazethapyr controls annual and perennial grass and broadleaf weeds.
• Indol-3-ylacetic acid is the common name for 1H-indole-3-acetic acid. Its plant growth regulating activity is described in The Pesticide Manual , Fourteenth Edition, 2006.
• 4-Indol-3-ylbutyric acid is the common name for 1H-indole-3-butanoic acid. Its plant growth regulating activity is described in The Pesticide Manual , Fourteenth Edition, 2006.
• Iodosulfuron is the common name for 4-iodo-2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Iodosulfuron controls grass and broadleaf weeds.
• Isoproturon is the common mane for N,N-dimethyl-N′-[4-(1-methylethyl)phenyl]urea. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Isoproturon controls a wide range of annual broadleaf and grass weeds in cereals other than durum wheat.
• Isoxaben is the common name for N-[3-(1-ethyl-1-methylpropyl)-5-isoxazolyl]-2,6-dimethoxybenzamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Isoxaben pre-emergently controls broadleaf weeds in cereals.
• MCPA is (4-chloro-2-methylphenoxy)acetic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. MCPA controls annual and perennial broadleaf weeds in crops including cereals.
• Mesosulfuron is the common name for 2-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-4-[[(methylsulfonyl)amino]-methyl]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Mesosulfuron controls grass and some broadleaf weeds.
• Metribuzin is the common name for 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Metribuzin controls many grasses and broadleaf weeds in cereals.
• Metsulfuron is the common name for 2-[[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Metsulfuron controls a wide range of grass and broadleaf weeds in wheat, barley, rice and oats.
• Norflurazon is the common name for 4-chloro-5-(methylamino)-2-[3-(trifluoromethyl)phenyl]-3(2H)-pyridazinone. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Norflurazon is used for the pre-emergence control of grasses and sedges, as well as some broadleaf weeds.
• Penoxsulam is the common name for 2-(2,2-difluoroethoxy)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)-6-(trifluoromethyl)-benzenesulfonamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Penoxsulam controls broadleaf, sedge, and aquatic weeds and Echinochloa spp. in rice.
• Picolinafen is the common name for N-(4-fluorophenyl)-6-[3-(trifluoromethyl)phenoxy]-2-pyridinecarboxamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Picolinafen controls broadleaf weeds, especially Galium, Viola, Lamium and Veronica spp.
• Pinoxaden is the common name for 8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2-d][1,4,5]oxadiazepin-9-yl 2,2-dimethylpropanoate. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Pinoxaden controls annual grasses, including Alopecurus, Apera, Avena, Lolium, Phalaris and Setaria.
• Propanil is the common name for N-(3,4-dichlorophenyl)propanamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Propanil controls grass and broadleaf weeds in rice.
• Propoxycarbazone is the common name for methyl 2-[[[(4,5-dihydro-4-methyl-5-oxo-3-propoxy-1H-1,2,4-triazol-1-yl)carbonyl]amino]sulfonyl]benzoate. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Propoxycarbazone controls annual and some perennial grasses, including Bromus spp., Alopecurus myosuroides, Apera spica - venti , and Elymus repens , and some broadleaf weeds.
• Prosulfocarb is the common name for S-(phenylmethyl) dipropylcarbamo-thioate. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Prosulfocarb controls a wide range of grass and broadleaf weeds in wheat, barley and rye.
• Pyrasulfotole is the common name for (5-hydroxy-1,3-dimethyl-1H-pyrazol-4-yl) [2-(methylsulfonyl)-4-(trifluoromethyl)phenyl]methanone. Pyrasulfotole controls a broad spectrum of broadleaf weeds in cereals.
• Pyrazosulfuron is the common name for 5-[[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-1H-pyrazole-4-carboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Pyrazosulfuron-ethyl controls annual and perennial broadleaf weeds and sedges in rice.
• Pyriclor is the common name for 2,3,5-trichloro-4-pyridinol.
• Pyroxsulam is the common name for N-(5,7-dimethoxy[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-2-methoxy-4-(trifluoromethyl)-3-pyridinesulfonamide. Pyroxsulam controls grass and broadleaf weeds.
• Quinclorac is the common name for 3,7-dichloro-8-quinolinecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Quinclorac controls weeds in transplanted and direct-seeded rice.
• Sulcotrione is the common name for 2-[2-chloro-4-(methylsulfonyl)benzoyl]-1,3-cyclohexanedione. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Sulcotrione controls grass and broadleaf weeds.
• Sulfosulfuron is the common name for N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-2-(ethylsulfonyl)imidazo[1,2-a]pyridine-3-sulfonamide. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Sulfosulfuron controls annual grasses and broadleaf weeds.
• Thifensulfuron is the common name for 3-[[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]-2-thiophenecarboxylic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Thifensulfuron controls a wide range of annual weeds.
• Tralkoxydim is the common name 2-[1-(ethoxyimino)propyl]-3-hydroxy-5-(2,4,6-trimethylphenyl)-2-cyclohexen-1-one. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Tralkoxydim controls annual grasses, including Avena spp., Lolium spp., Setaria viridis, Phalaris spp., Alopecurus myosuroides and Apera spica - venti.
• Tribenuron is the common name 2-[[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Tribenuron controls broadleaf weeds.
• Triclopyr is the common name for [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid. Its herbicidal activity is described in The Pesticide Manual , Fourteenth Edition, 2006. Triclopyr controls broadleaf weeds in rice.
• herbicide is used herein to mean an active ingredient that kills, controls or otherwise adversely modifies the growth of plants.
• An herbicidally effective or vegetation controlling amount is an amount of active ingredient which causes an adversely modifying effect and includes deviations from natural development, killing, regulation, desiccation, retardation, and the like.
• plants and vegetation include germinant seeds, emerging seedlings, plants emerging from vegetative propagules, and established vegetation.
• Herbicidal activity is exhibited by the compounds of the synergistic mixture when they are applied directly to the plant or to the locus of the plant at any stage of growth or before planting or emergence. The effect observed depends upon the plant species to be controlled, the stage of growth of the plant, the application parameters of dilution and spray drop size, the particle size of solid components, the environmental conditions at the time of use, the specific compound employed, the specific adjuvants and carriers employed, the soil type, and the like, as well as the amount of chemical applied. These and other factors can be adjusted as is known in the art to promote non-selective or selective herbicidal action. Generally, it is preferred to apply the composition of the present invention postemergence to relatively immature undesirable vegetation to achieve the maximum control of weeds.
• the weight ratio of the pyridine or pyrimidine carboxylic acid of formula (I) component to the second cereal or rice herbicide component at which the herbicidal effect is synergistic lies within the range of between about 5:1 and about 1:256.
• the rate at which the synergistic composition is applied will depend upon the particular type of weed to be controlled, the degree of control required, and the timing and method of application.
• the composition of the invention can be applied at an application rate of between about 8 grams per hectare (g/ha) and about 1200 g/ha based on the total amount of active ingredients in the composition.
• the cereal or rice herbicide component is applied at a rate between about 4 g/ha and about 1120 g/ha and the pyridine or pyrimidine carboxylic acid of formula (I) component is applied at a rate between about 4 g/ha and about 70 g/ha
• the components of the synergistic mixture of the present invention can be applied either separately or as part of a multipart herbicidal system.
• the synergistic mixture of the present invention can be applied in conjunction with one or more other herbicides to control a wider variety of undesirable vegetation.
• the composition can be formulated with the other herbicide or herbicides, tank mixed with the other herbicide or herbicides or applied sequentially with the other herbicide or herbicides.
• Some of the herbicides that can be employed in conjunction with the synergistic composition of the present invention include: amide herbicides such as allidochlor, benzadox, benzipram, bromobutide, cafenstrole, CDEA, chlorthiamid, cyprazole, dimethenamid, dimethenamid-P, diphenamid, epronaz, etnipromid, fentrazamide, flupoxam, fomesafen, halosafen, isocarbamid, napropamide, naptalam, pethoxamid, propyzamide, quinonamid and tebutam; anilide herbicides such as chloranocryl, cisanilide, clomeprop, cypromid, etobenzanid, fenasulam, flufenican, mefenacet, mefluidide, metamifop, monalide, naproanilide and pent
• the synergistic composition of the present invention can, further, be used in conjunction with glyphosate, glufosinate, dicamba, imidazolinones or 2,4-D on glyphosate-tolerant, glufosinate-tolerant, dicamba-tolerant, imidazolinone-tolerant or 2,4-D-tolerant crops. It is generally preferred to use the synergistic composition of the present invention in combination with herbicides that are selective for the crop being treated and which complement the spectrum of weeds controlled by these compounds at the application rate employed. It is further generally preferred to apply the synergistic composition of the present invention and other complementary herbicides at the same time, either as a combination formulation or as a tank mix.
• the synergistic composition of the present invention can generally be employed in combination with known herbicide safeners, such as benoxacor, benthiocarb, brassinolide, cloquintocet (mexyl), cyometrinil, daimuron, dichlormid, dicyclonon, dimepiperate, disulfoton, fenchlorazole-ethyl, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen-ethyl, mefenpyr-diethyl, MG 191, MON 4660, naphthalic anhydride (NA), oxabetrinil, R29148 and N-phenyl-sulfonylbenzoic acid amides, to enhance their selectivity.
• Cloquintocet (mexyl) is a particularly preferred safener for the synergistic compositions of the present invention, specifically antagonizing any harmful effect of the synergistic compositions on rice
• the synergistic composition of the present invention in mixtures containing an herbicidally effective amount of the herbicidal components along with at least one agriculturally acceptable adjuvant or carrier.
• Suitable adjuvants or carriers should not be phytotoxic to valuable crops, particularly at the concentrations employed in applying the compositions for selective weed control in the presence of crops, and should not react chemically with herbicidal components or other composition ingredients.
• Such mixtures can be designed for application directly to weeds or their locus or can be concentrates or formulations that are normally diluted with additional carriers and adjuvants before application.
• They can be solids, such as, for example, dusts, granules, water dispersible granules, or wettable powders, or liquids, such as, for example, emulsifiable concentrates, solutions, emulsions or suspensions.
• Suitable agricultural adjuvants and carriers that are useful in preparing the herbicidal mixtures of the invention are well known to those skilled in the art.
• Liquid carriers that can be employed include water, toluene, xylene, petroleum naphtha, crop oil, acetone, methyl ethyl ketone, cyclohexanone, trichloroethylene, perchloroethylene, ethyl acetate, amyl acetate, butyl acetate, propylene glycol monomethyl ether and diethylene glycol monomethyl ether, methanol, ethanol, isopropanol, amyl alcohol, ethylene glycol, propylene glycol, glycerine, N-methyl-2-pyrrolidinone, N,N-dimethyl alkylamides, dimethyl sulfoxide, liquid fertilizers and the like. Water is generally the carrier of choice for the dilution of concentrates.
• Suitable solid carriers include talc, pyrophyllite clay, silica, attapulgus clay, kaolin clay, kieselguhr, chalk, diatomaceous earth, lime, calcium carbonate, bentonite clay, Fuller's earth, cotton seed hulls, wheat flour, soybean flour, pumice, wood flour, walnut shell flour, lignin, and the like.
• compositions of the present invention It is usually desirable to incorporate one or more surface-active agents into the compositions of the present invention.
• Such surface-active agents are advantageously employed in both solid and liquid compositions, especially those designed to be diluted with carrier before application.
• the surface-active agents can be anionic, cationic or nonionic in character and can be employed as emulsifying agents, wetting agents, suspending agents, or for other purposes.
• Typical surface-active agents include salts of alkyl sulfates, such as diethanol-ammonium lauryl sulfate; alkylarylsulfonate salts, such as calcium dodecyl-benzenesulfonate; alkylphenol-alkylene oxide addition products, such as nonylphenol-C 18 ethoxylate; alcohol-alkylene oxide addition products, such as tridecyl alcohol-C 16 ethoxylate; soaps, such as sodium stearate; alkylnaphthalene-sulfonate salts, such as sodium dibutylnaphthalenesulfonate; dialkyl esters of sulfosuccinate salts, such as sodium di(2-ethylhexyl) sulfosuccinate; sorbitol esters, such as sorbitol oleate; quaternary amines, such as lauryl trimethyl-ammonium chloride; polyethylene glycol esters
• compositions may also contain other compatible components, for example, other herbicides, plant growth regulants, fungicides, insecticides, and the like and can be formulated with liquid fertilizers or solid, particulate fertilizer carriers such as ammonium nitrate, urea and the like.
• the concentration of the active ingredients in the synergistic composition of the present invention is generally from 0.001 to 98 percent by weight. Concentrations from 0.01 to 90 percent by weight are often employed. In compositions designed to be employed as concentrates, the active ingredients are generally present in a concentration from 5 to 98 weight percent, preferably 10 to 90 weight percent. Such compositions are typically diluted with an inert carrier, such as water, before application. The diluted compositions usually applied to weeds or the locus of weeds generally contain 0.0001 to 1 weight percent active ingredient and preferably contain 0.001 to 0.05 weight percent.
• compositions can be applied to weeds or their locus by the use of conventional ground or aerial dusters, sprayers, and granule applicators, by addition to irrigation or paddy water, and by other conventional means known to those skilled in the art.
• Seeds of the desired test plant species were planted in Sun Gro MetroMix® 306 planting mixture, which typically has a pH of 6.0 to 6.8 and an organic matter content of about 30 percent, in plastic pots with a surface area of 103.2 square centimeters (cm 2 ).
• a fungicide treatment and/or other chemical or physical treatment was applied.
• the plants were grown for 7-36 days in a greenhouse with an approximate 14 hour photoperiod which was maintained at about 18° C. during the day and 17° C. during the night.
• Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000-Watt lamps as necessary. The plants were employed for testing when they reached the second or third true leaf stage.
• Treatments consisted of compound (as listed in Tables 1 through 64) and a second cereal herbicide alone and in combination. Weighed amounts of esters (methyl) or salts (TEA [triethylammonium], K [potassium]) of 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid (Compound A) or of 6-amino-5-chloro-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid (Compound B), were placed in 25 milliliter (mL) glass vials and dissolved in a volume of 97:3 v/v acetone/DMSO to obtain 4.5 milligrams (mg) active ingredient (ai)/mL stock solutions.
• the concentrated stock solutions were diluted to 1.5 mg ai/mL with the addition of 2 volumes of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Agri-dex crop oil concentrate, and Triton® X-77 surfactant in a 64.7:26.0:6.7:2.0:0.7:0.01 v/v ratio.
• a dilution solution was prepared by mixing 1 volume of 97:3 v/v acetone/DMSO and 2 volumes of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Agri-dex crop oil concentrate, and Triton® X-77 surfactant in a 64.7:26.0:6.7:2.0:0.7:0.01 v/v ratio.
• Compound requirements are based upon a 12 mL application volume at a rate of 187 liters per hectare (L/ha).
• Spray solutions of the second cereal herbicide and experimental compound mixtures were prepared by adding the stock solutions to the appropriate amount of dilution solution to form 12 mL spray solution with active ingredients in two- and three-way combinations.
• Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 square meters (m 2 ) at a spray height of 18 inches (43 cm) above average plant canopy. Control plants were sprayed in the same manner with the solvent blank.
• the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 20-22 days, the condition of the test plants as compared with that of the control plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
• Seeds or nutlets of the desired test plant species were planted in a soil matrix prepared by mixing a loam soil (43 percent silt, 19 percent clay, and 38 percent sand, with a pH of about 8.1 and an organic matter content of about 1.5 percent) and river sand in an 80 to 20 ratio.
• the soil matrix was contained in plastic pots with a surface area of 139.7 cm 2 .
• a fungicide treatment and/or other chemical or physical treatment was applied.
• the plants were grown for 10-17 days in a greenhouse with an approximate 14 hr photoperiod which was maintained at about 29° C. during the day and 26° C. during the night. Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000-Watt lamps as necessary. The plants were employed for testing when they reached the second or third true leaf stage.
• Treatments consisted of esters (methyl, n-butyl or allyl) or salts (TEA [triethylammonium]) of 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxy-phenyl)pyridine-2-carboxylic acid (Compound A), 4-amino-3-chloro-6-(2,4-dichloro-3-methoxyphenyl)pyridine-2-carboxylic acid (Compound C), or 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-ethoxyphenyl)pyridine-2-carboxylic acid (Compound D), and various herbicidal components alone and in combination.
• TAA triethylammonium
• Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with a 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 m at a spray height of 18 inches (43 cm) above average plant canopy height. Control plants were sprayed in the same manner with the solvent blank.
• ALS acetolactate synthase
• penoxsulam triazolopyrimidine chemical class
• the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 3 weeks, the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
• mud puddled soil
• a non-sterilized mineral soil 28 percent silt, 18 percent clay, and 54 percent sand, with a pH of about 7.3 to 7.8 and an organic matter content of about 1.0 percent
• the prepared mud was dispensed in 250 mL aliquots into 480 mL non-perforated plastic pots with a surface area of 91.6 square centimeters leaving a headspace of 3 centimeters in each pot.
• Rice seeds were planted in Sun Gro MetroMix® 306 planting mixture, which typically has a pH of 6.0 to 6.8 and an organic matter content of about 30 percent, in plastic plug trays. Seedlings at the second or third leaf stage of growth were transplanted into 650 mL of mud contained in 960 mL non-perforated plastic pots with a surface area of 91.6 cm 2 4 days prior to herbicide application. The paddy was created by filling the 3 centimeter headspace of the pots with water. When required to ensure good germination and healthy plants, a fungicide treatment and/or other chemical or physical treatment was applied. The plants were grown for 4-14 days in a greenhouse with an approximate 14 hr photoperiod which was maintained at about 29° C.
• Treatments consisted of esters or salts of compound A, compound C, or compound D and various herbicidal components alone and in combination.
• a weighed amount determined by the highest rate to be tested, was placed in an individual 120 mL glass vial and was dissolved in 20 mL of acetone to obtain concentrated stock solutions. If the test compound did not dissolve readily, the mixture was warmed and/or sonicated.
• the concentrated stock solutions obtained were diluted with 20 mL of an aqueous mixture containing 2.5% Agri-dex crop oil concentrate (v/v).
• a measured amount determined by the highest rate to be tested, was placed in an individual 120 mL glass vial and was dissolved in 20 mL of 2.5% (v/v) Agri-dex crop oil concentrate to obtain concentrated stock solutions.
• the concentrated stock solutions obtained were diluted with 20 mL of acetone.
• Applications were made by injecting an appropriate amount of the stock solution into the aqueous layer of the paddy. Control plants were treated in the same manner with the solvent blank. All treated plant material received the same concentration of acetone and crop oil concentrate.
• the treated plants and control plants were placed in a greenhouse as described above and water was added as needed to maintain a paddy flood. After 3 weeks the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.

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