941results about How to "Improve herbicidal activity" patented technology

This invention relates to a high-strength herbicidal formulation containing high concentrations of glyphosate monomethylamine or dimethylamine salt and one or more surfactants selected to enhance the herbicidal activity of the glyphosate salts. The formulations exhibit significantly lower viscosity at high concentrations.

The present invention provides a pyrimidine derivative represented by the formula: wherein R<1p >and R<1q >are the same or different, and each represents (1) hydrogen, (2) halogen, (3) a C1-6alkyl group which may be substituted or (4) a C1-6alkoxy group, and so on, R<2 >is halogen, a C1-6alkyl group, cyano group, and so on, Ar is a phenyl group which may be substituted or is a condensed hetero ring which may be substituted, which has excellent selective herbicidal activity, and a herbicide containing the derivative.

The present invention relates to a synergistic herbicidal composition comprising N- [ [(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl] -2- [2-fluoro- 1 -(methoxymethylcarbony loxy)propyl] -3 -pyridine sulfonamide or N-[[(4,6-dimethoxy-2-pyrimidinyl)amino] carbonyl]-2-[2-fluoro-l-(hydroxy)propyl]-3-pyridine sulfonamide and other herbicidal active materials as active ingredient. The herbicidal composition of the present invention can increase the herbicidal efficacy against major weeds, and can reduce the use amount of active ingredients per unit area, due to the synergistic effect by mixing two herbicidal active ingredient having different physiological functions or different herbicidal activities.

The invention discloses a fluorine-contained pyribenzoxim compound with herbicidal activity and a preparation method thereof. The chemical name of the fluorine-contained pyribenzoxim compound is O-[2,6-bis(4,6-dimethoxy-2-pyrimidyl) oxy] benzophenone (2-trifluoromethyl) formaldoxime, the molecular formula of the fluorine-contained pyribenzoxim compound is C27H22N5O8F3, and the molecular weight of the fluorine-contained pyribenzoxim compound is 601.5. The fluorine-contained pyribenzoxim compound has three isomerides. The invention discloses molecular structural formulas and physical properties of the three isomerides. Meanwhile, the invention discloses a preparation method taking substitute trifluoromethyl-benzaldehyde, 2,6-bis(4,6-dimethyl-2-pyrimidyl-2-oxy) benzoic acid as raw materials. The control effect of the fluorine-contained pyribenzoxim compound reaches at least 94 percent on barnyard grass, Echinochloa colona, Paspalum distichum and Panicum crus in paddy fields. Meanwhile, the fluorine-contained pyribenzoxim compound is highly safe for paddy crops, is friendly to the environment, is low in toxicity and is wide in application prospect in the field of pesticides.

The invention discloses pyridinooxazone-pyridinopyrimidone compounds and a preparation method and an application thereof. The pyridinooxazone-pyridinopyrimidone compounds have the following structures shown in formulae 1 and 2: R1 is hydrogen or chlorine; R2 is hydrogen, chlorine or fluorine; R3 is hydrogen, amido, methyl or carboxymethyl; X, Y and Z are nitrogen or hydrocarbon. The synthetic line comprises the following steps: dissolving amino substituted picolinic acid in an organic solvent; in the presence of organic alkali, carrying out reaction with substituted phenoxyacetyl chloride to obtain the pyridinooxazone compounds; and reacting the pyridinooxazone compounds with substituted amine in an organic solvent to obtain the pyridinopyrimidone compounds. The pyridinooxazone-pyridinopyrimidone compounds are used for preventing and treating weed. Part of the pyridinooxazone and pyridinopyrimidone compounds has high herbicidal activity and can effectively inhibit growth of dicotyledon.

The present invention relates to herbicidally active compositions, which comprise 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole [common name pyroxasulfone] and at least one herbicide B which is an selected from protoporphyrinogen-IX-oxidase inhibitors.The invention furthermore relates to the use of a composition as defined herein for controlling undesirable vegetation in crops. When using the compositions of the invention for this purpose the herbicide A and the at least one herbicide B can be applied simultaneously or in succession in crops, where undesirable vegetation may occur.

The invention is a kind of 2-pyrimidine oxo-N-urea phenyl benzyl amine compound, the manufacturing method. The structural formula is shown in the picture. D or E = hydrogen, halogen, C1-4C alkyl, C1-C4 alkoxy, C1-C4 halogenated alkyl or C1-C4 alkylogen oxide; X=hydrogen, halogen, nitro, cyan, carboxy, ester group, sulfonyl, C1-C8 alkane acyl amido, C1-C8 halogeno alkane acyl amido, C1-C8 alkane acyl group, C1-C8 alkyl, C1-C8 halogeno alkyl, C1-C8 alkoxy, phenyl etc; R1, R2=hydrogen, ester group, sulfonyl, C1-C8 alkyl, C1-C8 substituted alkyl, C1-C8 alkyl acyl, phenyl, etc; Xí» is H, urea, halogen atom, carboxy, ester group, C1-C8 alkane acyl, C1-C8 alkyl, C1-C8 halogeno alkyl, C1-C8 alkoxy, phenyl, substitution phenyl or heterocyclic radical; R3=hydrogen, C1-C8 alkane acyl, C1-C8 halogeno alkyl, benzene formyl, substitution benzene formyl, C1-C8 alkyl.

This invention relates to 3-acyl-pentazane-2,4-diketo compound. The compound (I) has high plant growing restraining and weed killing reactivity, and shows good selectivity to the plants. It can be the weed killing solvent in the broad-leave field to remove single-leave weed. There into, R1 : H, alkyl, alkoxyl alkyl, alkylogen, alkylogen alkoxyl alkyl, substituted aromatic base and etc; R2R4: H, alkyl, alkoxyl, phenyl alkoxyl, hydroxyl alkyl, alkoxyl, alkylogen, alkylogen alkoxyl, nitryl, cyan and etc, R2, R4 can be the same or different; R3: substituted phenyl, substituted naphthyl, substituted pyridyl, substituted thiazolyl, cyan and etc.

The invention relates to a herbicide composition containing nicosulfuron, atrazine and clopyralid, which optimally uses the nicosulfuron, the atrazine and the clopyralid as active ingredients, wherein the weight ratio of the atrazine to the nicosulfuron to affinity is 40-1:20-1:10-1. The herbicide composition has the advantages of low toxicity, weak allergenicity and few damages to human and livestock, broad herbicide controlling spectrum and remarkable weed control strengthening effect and is suitable for preventing and controlling various weeds in fields of various crops, particularly corn fields.

The invention belongs to the field of pesticides, and relates to a mixed herbicide composition containing bispyribac-sodium and cyhalofop-butyl. The herbicide composition adopts the bispyribac-sodium and the cyhalofop-butyl as main active components, the weight ratio of the bispyribac-sodium and the cyhalofop-butyl is 1 to 99:1 to 99, and the herbicide composition is mainly applied to postemergence weeding in paddy fields, and particularly can prevent and get rid of annual gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields. Compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence period and is safe for rice and next-stubble crops.

The invention discloses a compound pesticide composition containing picloram or salts thereof. Active ingredients comprise a component I and a component II, wherein the component I is picloram or salts thereof; the component II is flumetsulam, pyribenzoxim, carfentrazone-ethyl, topramezone, florasulam, flucarbazone-sodium, clodinafop-propargyl or metamifop; and the mass ratio of the component I to the component II is 60:1-1:60. The invention also discloses a preparation prepared from the composition and suitable for agriculture, and application of the preparation to controlling weeds. The compound pesticide composition containing the picloram has an obvious synergistic effect and controls broad leaf weeds and annual grass weeds, the dosage is reduced, the pesticide burden of farmers is reduced, the environmental pollution is lightened, and the compound pesticide composition has a wide development and promotion prospect.

The present invention relates to herbicidally active compositions, which comprise 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole [common name pyroxasulfone] and at least one herbicide B and at least one herbicide B which is selected from group consisting of synthetic auxins and auxin transport inhibitors.The invention furthermore relates to a method for controlling undesirable vegetation, which comprises applying an herbicidal composition according to the present invention to the undesirable plants. Application can be done before, during and / or after, preferably during and / or after, the emergence of the undesirable plants. The herbicide A and the at least one herbicide B can be applied simultaneously or in succession.

The invention discloses application of 4-alkyl-5-(1,2,4-triazole-1-yl)-2-benzyl imino thiazole in the preparation of weedicide. The 4-alkyl-5-(1,2,4-triazole-1-yl)-2-benzyl imino thiazole is shown in the chemical structural formula I; and in the formula I, R is selected from CI-2 alky, C3-4 straight-chain and branched-chain alkyl, and Ar is selected from phenyl or substituted phenyl.

The invention discloses a weed controlling compound pesticide composition. The pesticide composition contains such active ingredients as fluroxypyr or esters thereof and topramezone, wherein the weight ratio of fluroxypyr or esters thereof to topramezone is 15: (1-3). The pesticide composition is characterized in that the dosage form of the pesticide composition is wettable powder or water dispersible granules; based on the total weight of the composition, the content of fluroxypyr or esters thereof is 10-70%, the content of topramezone is 2-30% and the content of additives is 10-88%; and theamount of the esters of fluroxypyr is converted into the amount of fluroxypyr. The invention also discloses a preparation method of the wettable powder or water dispersible granules. The pesticide composition is formed by compounding fluroxypyr or esters thereof and topramezone, has low toxicity, wide weed control spectrum, quick effect, good persistence and medium cost, can control broadleaf weeds, annual grass weeds and the like, is a more ideal pesticide variety for controlling weeds in the maize fields and has the advantages of simpleness in production, convenience and safety in use, zeroenvironmental pollution and the like.

The invention discloses a synergic herbicide composition containing cyhalofop-butyl and 2,4-dichlorophenoxyacetic acid and application thereof. The herbicide composition comprises the cyhalofop-butyl and the 2,4-dichlorophenoxyacetic acid which serve as the main active ingredients, wherein the mass ratio of the cyhalofop-butyl to the 2,4-dichlorophenoxyacetic acid is 1-60:1-60. The synergic herbicide composition can be used for preparing herbicides for controlling post-emergence weeds in paddy field. Compared with single-composition herbicide, the herbicide composition has a broad herbicide spectrum and acts for a long time on the premise of improving the herbicide effect, is safe for the paddy fields and after-reap crops and particularly has obvious effect of controlling various gramineous weeds and broadleaf weeds in the paddy fields.

The invention discloses solid granules of biological weedicide Jun Kekuo and a preparation method therefor. The solid granules are prepared through granulating a solid matrix, Sclerotium rolfsii mycelial masses, a binder and water which serve as raw materials; the weight ratio of the solid matrix to the Sclerotium rolfsii mycelial masses to the binder to the water is 30: (35-55): (0.4-12): (12-16); and the solid matrix is any one or more selected from rice straws, wheat straws, rape straws, cotton stalks, Solidago canadensis straws, cane straws, soybean straws, rice hulls, cotton seed hulls, garden deadwood and wood dust, and the binder is selected from white carbon black or glutinous rice flour. According to the solid granules and the preparation method therefor, mycelia are produced by using a liquid fermentation technology, so that the time consumed is shortened to more than half of the time for solid fermentation. A solid powdered material is coated with microbial pesticide active mycelia so as to form a granular formulation, thus, the storage period is prolonged, the drug effect is improved, and the consumption is reduced.

The present invention relates to herbicidally active compositions, which comprise 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole [common name pyroxasulfone] and at least one herbicide B which is an inhibitor of the electron transfer in photosynthesis and which is selected from the groups of: b.1 arylurea herbicides; b.2 triazin(di)one herbicides; b.3 terbuthylazine; b.4 pyridazinone herbicides; b.5 phenylcarbamate herbicides; b.6 nitrile herbicides; b.7 bentazone and its salts such as bentazone sodium; and b.8 methylthiotriazine herbicides. The invention furthermore relates to the use of a composition as defined herein for controlling undesirable vegetation in crops which, by genetic engineering or by breeding, are resistant to one or more herbicides and / or pathogens, such as plant-pathogenous fungi, and / or to attack by insects; preferably resistant to one or more herbicides that act as inhibitor of the electron transfer in photosynthesis. The invention furthermore relates to a method for controlling undesirable vegetation, which comprises applying an herbicidal composition according to the present invention to the undesirable plants. Application can be done before, during and / or after, preferably during and / or after, the emergence of the undesirable plants. The herbicide A and the at least one herbicide B can be applied simultaneously or in succession.

The invention relates to the field of pesticides, particularly to a thiotriazinone isoxazoline compound, a preparation method and application thereof, a herbicide containing the thiotriazinone isoxazoline compound, and a protoporphyrinogen oxidase inhibitor, wherein the thiotriazinone-containing isoxazoline compound has a structure represented by a formula (I), and R<1> and R<2> are respectively and independently selected from H, -NH2, C1-C6 alkyl or C1-C6 halogenated alkyl and the like. The thiotriazinone isoxazoline compound provided by the invention can efficiently inhibit the activity of plant protoporphyrinogen oxidase, and has good herbicidal activity and crop safety.

The invention provides a compound herbicide composition. The compound herbicide composition is prepared from a first active ingredient, a second active ingredient and a third active ingredient, wherein the first active ingredient is penoxsulam; the second active ingredient is cyhalofop-butyl; the third active ingredient is 2-methyl-4-chlorophenoxy acetic acid or a derivative thereof; and the weight percent ratio of the three active ingredients is (0.1-40):(1-100):(1-100). The compound herbicide composition has the beneficial effects that by carrying out ternary compounding on the penoxsulam, cyhalofop-butyl and 2-methyl-4-chlorophenoxy acetic acid or the derivative thereof, the new composition is applied to controlling grassy weeds, broadleaf weeds and cyperaceae weeds in the rice fields, has an ideal control effect, especially has an obviously improved control effect on barnyard grass, rice weeds, xeromorphic polygonum amphibium, waterpepper, eclipta prostrate, ammannia arenarid H., crab grass, scirpus yagara, eleocharis acicularis, eleusine indica, monochoria korsakowii, paspalum distichum, moleplant seed, cyperus difformis, scirpus planiculmis and sagittaria trifolia, also can solve the problem of the dosage for controlling some novel weeds in the fields in which penoxsulam and cyhalofop-butyl are used perennially and has certain effects on rice production increase.

The invention belongs to the field of pesticide, and discloses a herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof. The diflufenican and the clodinafop-propargyl are used as main active ingredients in the herbicidal composition; the mass ratio of the diflufenican to the clodinafop-propargyl is 1-80: 1-80; and the diflufenican and the clodinafop-propargyl account for 5 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be applied in preparation of herbicide for controlling weeds among barley or wheat fieldseedlings, particularly in preparation of herbicide for controlling various gramineous weeds and broadleaf weeds in wheat or barley fields. Compared with a single-component herbicide, the herbicidal composition delays the weed resistance, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat, barley and afterculture crops.

The invention relates to 3-substituted cyclopropane carbonyl pyrrolidine-2,4-diketone and the herbicidal activity thereof. A compound (I) has high plant growth inhibition activity and herbicidal activity and shows up good selectivity to rapes, wherein R1 and R2 are CH3, Cl, Br or CF3, and R3 is -CH(CH3)2, -CH2CH2CH3, -CH(CH3)CH2CH3, -CH2CH2CH2CH3, CH2=CHCH2- or cyclo-C3H5.

The invention discloses a 3-arylpyridazinone compound, a preparation method, a pesticide composition and an application. The invention provides a 3-arylpyridazinone compound shown by formula I, and the structure is shown in the specification. The 3-arylpyridazinone compound disclosed by the invention has the advantages of high herbicidal activity, relatively wide weeding spectrum, good crop safety, relatively long application time, short residual period in soil and good pre-emergence and post-emergence herbicidal activity with low dosage, realizes a control effect on farmland broadleaf weeds, farmland grassy weeds and cyperaceous weeds as well certain safety on the crops such as corn, rice, wheat, cotton and soybeans with high dosage, and can inhibit the weed germination relatively well; and meanwhile, the 3-arylpyridazinone compound also has relatively good herbicidal activity against older sensitive weeds of the leaf stages 3-6, avoids adverse effects on the growth of succeeding crops, has reasonable toxicity, ecological toxicity and environmental compatibility, is a low-toxicity environment-friendly pesticide and has good market prospect.

The invention discloses a synergistic herbicide composition comprising triclopyr and glufosinate and an application thereof; in the synergistic herbicide composition, triclopyr and glufosinate are used as main effective components, and the mass ratio of triclopyr to glufosinate is 1-65: 1-50. The synergistic herbicide composition can be used for preparing the herbicide for removing weeds in forest land or uncultivated area. Under the precondition that the pesticide effect is improved relative to simple dosage, the synergistic herbicide composition retards weed resistance, and has wide herbicide spectrum and long duration; moreover, the synergistic herbicide composition has safety to forest and afterreap crops, and particularly has obvious effect in all kinds of gramineous and broadleaf weeds in forest land or uncultivated area.

The invention discloses a clodinafop-propargyl and beflubutamid containing weeding composition and an application thereof. According to the weeding composition, clodinafop-propargyl and beflubutamid serve as major active components and the mass ratio of clodinafop-propargyl to beflubutamid is (1 to 99): (1 to 99), and the total mass percentage of clodinafop-propargyl and beflubutamid in the weeding composition is 10-80%. The weeding composition disclosed by the invention can be applied to the post-emergence weeding of wheat fields and particularly has a remarkable effect when the weeding composition is used for controlling Gramineae weeds and broad-leaved weeds in the wheat fields. Compared with single agents, the weeding composition disclosed by the invention has the advantages that the resistance to the weeds is retarded on the premise of improving drug effect, the weeding spectrum is broad, the effect duration is long, and the weeding composition has safety to both wheats and succession crops.

This invention relates to a synergistic composition made of a herbicidally effective amount of a propanil-based product, such as Super Wham® and the at least one ACCase inhibitor herbicide such as Clincher® in an amount sufficient to facilitate the herbicidal activity of the propanil-based herbicide. It has been found that this synergistic composition, when applied to a field of rice, allows a reduction in the amount of herbicide needed, greater flexibility in timing of the application and broad spectrum of weed control.

The invention discloses a 5-(2-aminothiazole-4-yl) benzofuranol etheric compound with herbicidal activity, which is shown in a formula (I) and a preparation method. The chemical structural formula of a compound shown in the formula (I) has the characteristics as follows: R is selected from H, C1-C2 alkyl groups, and C3-C4 linear alkyl groups or branched alkyl groups; Ar is selected from a phenyl group, a substituted phenyl group and a pyridyl group; and R1 is selected from the H, the C1-C2 alkyl groups, and the C3-C4 linear alkyl groups or branched alkyl groups. The preparation method of the 5-(2-aminothiazole-4-yl) benzofuranol or phenolic ether comprises the following steps of: heating 2-halogen-1-(7-hydroxyl / alkoxyl-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl) azululanone and aryl thiourea with acetone, and stirring and reacting the mixture to obtain a salt of the 5-(2-aminothiazole-4-yl) benzofuranol or phenolic ether; and neutralizing the salt of the 5-(2-aminothiazole-4-yl) benzofuranol or phenolic ether with stronger ammonia water so as to obtain the 5-(2-aminothiazole-4-yl) benzofuranol or phenolic ether. The 5-(2-aminothiazole-4-yl) benzofuranol etheric compound disclosed by the invention has good herbicidal activity and can be used as a herbicide for preventing and removing gramineae grassy weeds.

The invention discloses a herbicidal composition containing fluazifop-p-butyl and clethodim and application thereof. The herbicidal composition takes fluazifop-p-butyl and clethodim as the main active ingredients, wherein the mass ratio of fluazifop-p-butyl to clethodim is (1-70):(1-80) and fluazifop-p-butyl and clethodim account for 5-85% of the herbicidal composition by mass. The herbicidal composition has obvious effect on preparing the herbicides for controlling the postemergence weeds in the soybean fields, especially the herbicides for controlling various grass weeds in the soybean fields. Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the rapes and the aftercrops on the premise of improving the drug effect.

The present invention relates to herbicidally active compositions, which comprise 3-[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)pyrazol-4-ylmethylsulfonyl]-4,5-dihydro-5,5-dimethyl-1,2-oxazole [common name pyroxasulfone] and at least one herbicide B which is selected from inhibitors of the phytoene desaturase.The invention furthermore relates to the use of a composition as defined herein for controlling undesirable vegetation in crops. When using the compositions of the invention for this purpose the herbicide A and the at least one herbicide B can be applied simultaneously or in succession in crops, where undesirable vegetation may occur.

The invention discloses a kind of pyrimidine diketone compounds containing a benzoxazine ring and application thereof. The pyrimidine diketone compounds containing the benzoxazine ring are compounds with the structure shown as a general formula (1) in the specification, and in the formula (1), R1 is selected from hydrogen or an alkyl with the carbon atom number of 1-6, R2 is an ester with the carbon atom number of 2-10, and X is selected from halogen. The pyrimidine diketone compounds containing the benzoxazine ring possess high weeding activity.