154 results about "Clopyralid" patented technology

This invention relates to a high-strength, aqueous herbicidal concentrate containing the clopyralid dimethylamine salt. The formulation is stable to storage and exhibits lower viscosity than other clopyralid amine salt formulations.

The invention relates to the field of pesticide preparations, and particularly relates to a wheat field weeding composition and a preparation of the wheat field weeding composition. The wheat field weeding composition comprises halauxifen-methyl and active components, wherein the active components are selected from clopyralid, 2-methyl-4-chlorine sodium, carfentrazone, dicamba, tribenuron-methyl, bensulfuron methyl or thifensulfuron methyl. The wheat field weeding composition is mixed to use, and has an obvious synergistic effect. According to the wheat field weeding composition and the preparation of the wheat field weeding composition, the overall control effect of wheat field weeds can be improved, the active components do not have antagonistic action, and the dosage is reduced.

The invention discloses a method for preparing picolinic acid through electro-catalysis selective dechloridation of chloropicolinicacid. According to the method, the chloropicolinicacid is added into a water solution for supporting an electrolyte or a mixed water solution for supporting the electrolyte and organic solvent, so that electrolytic reaction liquid is obtained, an electrolytic reaction is conducted in an electrolytic bath with a precious metal modified conducting material used as the cathode and a chemical inertness conducting material used as the anode, and accordingly the picolinic acid shown as the formula (II) is obtained. By the adoption of the method, the chloropicolinicacid or a mixture of the chloropicolinicacid can be reduced into the picolinic acid in high chemoselectivity, high efficiency and high yield modes, the problem that by-products cannot be handled easily in an existing synthetic technique of 3,6-clopyralid and 4-amino-3,6-clopyralid can be solved, and picolinic acid and 4-aminopyridine carboxylic acid products with high additional values further can be obtained.

The invention provides a herbicide combination, containing the effective constituents of picloram or picloram ester, clopyralid or clopyralid ester and as well as one or more varieties of triketone; the weight ratio of the three constituents is 0.1:1:20-20:1:0.1. The combination contains at least one surfactant. The combination can be used to prepare emulsifiable solution, liquor, thick emulsion, microemulsion, wettable powder, water suspending agent, oil suspending agent, water-dispersible granules, soluble powder or granules, and is used to prevent and control Gramineae and broad-leaved weeds which have grown for one year or more than one year in the corn field.

The invention relates to a herbicidal composition containing mesotrione. The composition is mainly characterized in that: the herbicidal composition contains 1-60% of an active component A mesotrione, 1-80% of an active component B, an assistant, and other excipients, wherein the active component B is selected from clopyralid, pendimetalin, dicamba, and metribuzin; and the composition can be prepared into a wettable pulvis, a water dispersible granule, a suspending agent, a suspended emulsion, a micron emulsion, and an emulsion in water. The herbicidal composition of the present invention can be used for controlling weeds in fields.

The invention provides a weed killer containing moxa leaf extract and application thereof in saline-alkali soil sugarbeet planting. The weed killer comprises the following raw material components in parts by weight: 5-9 parts of clopyralid, 6.4-7.8 parts of moxa leaf extract, 2.3-5.5 parts of phosethyl-al, 1.2-2.6 parts of sophocarpidine, 1-2 parts of ethyl oleate, 3-4 parts of camphor, 8-10 parts of adhesive and 19-22 parts of solid carrier; the adhesive is triphenylmethyl ethylphenol polyoxyethylene ether; and the solid carrier is tapioca flour. In the application of the weed killer in saline-alkali soil sugarbeet planting, the control effect of green bristlegrass is 99.5% to 100%, the control effect of Chenopodium glaucum is 98.8% to 99.6%, the control effect of Siberian cocklebur is 99.5% to 100%, the control effect of nightshade is 98.5% to 99.2%, and the control effect of wormwood is 97.4% to 98.6%.

The invention provides a method for degrading clopyralid in water by performing electron beam irradiation, which relates to an efficient energy-saving water treatment technology. In the method, high-energy electrons are produced by using an electron accelerator under the irradiation condition and are used for treating a water body containing clopyralid. The energy of the electron accelerator used in the method is 1.8 MeV, the current intensity is 1mA, and the electron irradiation dosage is 5-50 KGy. 2-10 mM of hydrogen peroxide is added into a sample solution of the used clopyralid, and the pH value of the solution is adjusted to 7-11, so that the degradation is promoted, and the radiation dosage can be reduced appropriately.

The invention discloses a herbicidal compound containing 2,4-D and clopyralid, which comprises raw medicines and an auxiliary material, wherein the raw medicines consist of the 2,4-D and the clopyralid. The invention further discloses a preparation method and an application of the herbicidal compound. According to the invention, the advantages and the defects of the mixture of the 2,4-D and the clopyralid are complementary, and besides, synergistic action is achieved. The obtained herbicidal compound can broaden weeding spectrum, improve weeding effect, lower consumption, save economic cost, greatly reduce the use quantity of the active ingredient of each medicine, and lower the residue of the medicine in the environment and residual activity, and has important bionomics and environment protection significance.

The invention discloses a herbicidal composition containing nicosulfuron and clopyralid, and application thereof. The herbicidal composition takes the nicosulfuron and the clopyralid as active ingredients; and the mass ratio of the nicosulfuron to the clopyralid is (1-70) to (1-80). Compared with a single-component herbicide, the herbicidal composition delays weed resistance, has a broad herbicidal spectrum and acts for a long time on the premise of enhancing herbicide effect, and is safe for corns and afterculture crops. The herbicidal composition can be used for preparing herbicide for controlling and killing weeds of the grass family and broad leaves in the corn fields.

The invention provides and discloses a formula, a processing method and an application method of a herbicidal composition for prevention and control of malignant invasive alien plant Mikania micrantha. The chemical structural general formulas of the effective components of the composition are shown as the following. Specifically, the composition is composed of A, which is one of 2, 4-D acid, 2, 4-D sodium salt, 2, 4-D ethanolamine salt, 2, 4-D isopropylamine salt, as well as 2, 4-D butyl ester, and B, which is one of clopyralid, clopyralid sodium, clopyralidammonium, a clopyralid isopropylamine salt, as well as clopyralid butyl ester, or the composition is composed of A, which is one of 2, 4-D sodium salt, 2, 4-D ethanolamine salt, 2, 4-D isopropylamine salt, as well as 2, 4-D butyl ester, and C, which is one of picloram, a picloram sodium salt, a picloram ethanolamine salt, a picloram isopropylamine salt, as well as picloram butyl ester.

The invention discloses a high-efficiency high-disintegration rate novel low-toxicity cell element herbicide and a preparation method of the high-efficiency high-disintegration rate novel low-toxicity cell element herbicide. The high-efficiency high-disintegration rate novel low-toxicity cell element herbicide is small in average grain size, good in dispersion stability and high in suspending rate, and has the advantages of high efficiency, high disintegration rate, low toxicity, evaporation resistance, drifting resistance, and evener fogdrop size. In addition, the preparation process is easy to control, the stability of the performances of a prepared dry suspending agent is effectively guaranteed, the production efficiency is improved effectively, and the production cost is lowered. The high-efficiency high-disintegration rate novel low-toxicity cell element herbicide is prepared from the following raw materials by weight: 770-810 parts of clopyralid, 100-120 parts of special dry suspending dispersing aid, 40-60 parts of special dry suspending wetting aid, 40-60 parts of special dry suspending disintegration aid, and 1500-2500 parts of water.

The invention relates to a weeding composition containing carfentrazone-ethyl and clopyralid. The composition is mainly characterized by comprising 1-60 percent of carfentrazone-ethyl and 1-80 percent of clopyralid serving as active ingredients, an aid and other excipients and being prepared into wettable powder, water-dispersible granules, a suspending agent, a micro-emulsion, an aqueous emulsion and the like. The weeding composition is used for preventing and controlling wheatfield broadleaf weeds, gramineae weeds and sedges.

The invention belongs to the field of herbicide preparation, and in particular relates to a method for extracting and refining clopyralid. The method comprises the following steps of: concentrating clopyralid solution prepared by an electrochemical synthesis method by using a membrane concentration and separation technology, pre-treating the concentrate by micro-filtration and ultra-filtration, and purifying the pre-treated concentrate by adopting a multistage membrane concentration process to obtain refined clopyralid. The obtained clopyralid has the characteristics of high purity and good quality, and the high performance liquid chromatography (HPLC) content of the clopyralid reaches over 97 percent; by technical improvement of the traditional process, energy consumption can be reduced,and discharge of waste water and waste gas is reduced; the treated waste water can be directly recycled or discharged after meeting the discharge standard; the method is more favorable for environmental protection; and meanwhile, the yield of the clopyralid is improved.

The invention discloses a synergic weeding composition containing clopyralid and fluroxypyr and application thereof. The main active ingredients of the weeding composition are the clopyralid and the fluroxypyr in a mass ratio of 1-80:1-80. The synergic weeding composition is used for post-emergence weeding in a corn field, and particularly has obvious effect when used for preventing and killing various broadleaf weeds in the corn field. Compared with the single clopyralid or fluroxypyr, the weeding composition delays the resistance of the weeds, has a wide weeding spectrum and long effective duration, and is safe for corn and aftercrop on the premise of improving herbicide effect.

The invention relates to the field of pesticide preparations and discloses a herbicide composition. The herbicide composition is formed by clopyralid and methyl-4-chlorophenoxyacetic acid in a weight ratio of (1:2)-(1:10). The invention provides a herbicide composition preparation. The active ingredient of the preparation is formed by the herbicide composition. The herbicide composition and the conventional auxiliary materials can be prepared into the herbicide composition preparations such as water aqua, soluble powder, soluble granules, wettable powder or water dispersible granules according to the known methods. The herbicide composition is formed by compounding clopyralid and methyl-4-chlorophenoxyacetic acid, expands the herbicide controlling spectrum, can simultaneously control most weeds in the wheat fields, enhances the broad leaf weed control effect, simultaneously has the advantages of long use age, safety to later crops, long duration and environmental safety and can be widely applied in the agricultural field.

The invention relates to a weeding composition containing diflufenican and clopyralid, which is mainly characterized by comprising 1 to 80 percent of diflufenican, 1 to 80 percent of clopyralid, an aid and other excipients, and the weeding composition can be prepared into wettable powder, aqueous dispersion granules, a suspending agent, a suspension emulsion, an aqueous emulsion and a microemulsion. The weeding composition is used for preventing and controlling weeds of wheat fields, and has the characteristics of reducing the dosage and residues of pesticides, along with high environment compatibility and safety on human and livestock.

The invention discloses an efficient and low-toxicity herbicide used for a garden. The herbicide is prepared from the following raw materials in parts by weight: 1-2 parts of oxyfluorfen missible oil,14-18 parts of butachlor, 10-12 parts of acetochlor, 15-40 parts of triethanolamine, 4-8 parts of carfentrazone, 5-10 parts of clodinafop-propargyl, 10-20 parts of flumiclorac-pentyl missible oil, 12-15 parts of fomesafen, 8-15 parts of cloransulam-methyl, 5-10 parts of organosilicone, 20-35 parts of fenoxaprop-p-ethyl, 5-10 parts of glyphosate, 0.3-0.5 part of gibberellin, 0.1-0.2 part of indoleacetic acid, 10-12 parts of triacontanol, 2-4 parts of urea, 10-20 parts of carbetamide, 5-10 parts of clopyralid, 10-13 parts of mesotrione, 5-7 parts of bentazone, 6-8 parts of bensulfuron methyl, 10-12 parts of glufosinate-ammonium, 12-15 parts of glyphosate, 20-25 parts of water soluble salt and 100-150 parts of deionized water. All raw materials can be compounded to achieve purposes of complementing advantages, reducing a use amount, controlling effects and enhancing. The efficient and low-toxicity herbicide has the advantages of high effect taking speed, wide weed control spectrum, longlasting period, thorough weed removal, low residue, low toxicity, safety, environment protection and the like.

The invention discloses a synergistic herbicide composition containing rimsulfuron and clopyralid and application thereof. In the herbicidal composition, rimsulfuron and clopyralid serve as the main active ingredients, wherein the mass ratio of the rimsulfuron to the clopyralid is 1-80: 1-80. The synergistic herbicide composition can be used for preparing herbicide for controlling post-emergence weeds in corn field. Compared with the single-composition herbicide, the herbicide composition postpones the resistance of weeds, has a broad herbicide spectrum and acts for a long time on the premise of improving the herbicide effect, is safe for the corns and the afterculture crops, and particularly has an obvious effect of preventing various graminaccae and broadleaf weeds in the corn field.

The invention belongs to the field of pesticides, and discloses a herbicidal composition containing clopyralid and tribenuron-methyl and application thereof. The main active ingredients of the herbicidal composition are clopyralid and tribenuron-methyl in a mass ratio of 1-80:1-80, wherein the clopyralid and the tribenuron-methyl account for 1 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be used for preparing herbicides for controlling post-emergence weeds in a wheat field, and particularly has an obvious effect when used for preparing herbicides for controlling various broadleaf weeds in the wheat field. Compared with single-component herbicide, the herbicidal composition delays the resistance of the weeds, has a broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat and afterculture crops.