30 results about "Kresoxim-methyl" patented technology

The invention belongs to the technical field of pesticide preparations, and particularly relates to kresoxim-methyl drug-loaded microspheres as well as a preparation method and application thereof. The 9% pyraclostrobin drug-loaded microspheres (Pyr (at) COzein) are prepared by modifying a Zein-pesticide emulsifier 500 # complex with n-caprylic alcohol, and the n-caprylic alcohol has a synergistic effect on pyraclostrobin, so that not only can the defect of a sustained and controlled release preparation in the aspect of fast-acting sterilization be made up, but also the use dosage of pyraclostrobin can be reduced, the risk of pesticide residue can be reduced, and the drug-loaded microspheres have a good application prospect. The ecological safety is improved.

The invention discloses a preparation method and application of a pH response type tannic acid modified pyraclostrobin metal organic framework nano-composite. The preparation method comprises the following steps: constructing a pyraclostrobin metal organic framework nano-composite by using pyraclostrobin, dimethylimidazole and zinc acetate, and then carrying out interface function modification on the pyraclostrobin-loaded metal organic framework nano-composite by using tannic acid to prepare the tannic acid modified pyraclostrobin metal organic framework nano-composite. The tannic acid modified pyraclostrobin metal organic framework nano-composite endows the pyraclostrobin with the characteristics of sustained and controlled release and pH environment response, meanwhile, Botrytis cinerea thalli are caused to generate excessive active oxygen, and the efficient utilization of the pyraclostrobin in the field of fungal disease prevention and control is enhanced. The metal organic framework nano-composite and the tannic acid have degradability and biocompatibility, and the metal organic framework nano-composite is low in preparation cost, simple in process and suitable for popularization and application.

The invention belongs to the technical field of pesticides, and relates to 11 bactericide compositions for mainly preventing and treating crop diseases caused by pyricularia oryzae and colletotrichum gloeosporioides. The compound YJY-22 provided by the invention is novel in structure and unique in action mode, and has no cross resistance with isoprothiolane, fenoxanil, pyraclostrobin, tricyclazole, azoxystrobin, mancozeb, captan, difenoconazole, prochloraz, chlorothalonil and tebuconazole. As the action mechanism of the compound YJY-22 is different from that of the medicament, and the compound YJY-22 and the medicament have no cross resistance, the compound YJY-22 and the medicament are compounded, so that the sterilization range can be expanded, the sterilization effect can be enhanced, the drug resistance of phytopathogen can be delayed, the safety to crops is good, the prevention and control spectrum is expanded, and the requirements of pesticide reduction and synergism are met.

The invention discloses a chiral amino acid citral Schiff base amide derivative as well as a preparation method and a bactericidal compound thereof. The structural formula of the chiral amino acid citral Schiff amide derivative is shown in the specification, R is shown in the specification, and the chiral amino acid citral Schiff amide derivative can play a remarkable synergistic effect on kresoxim-methyl and is high in adaptability, stable in pesticide effect, broad in spectrum and efficient.

The invention relates to a novel synthesis method of (E)-2-(2-chloromethylphenyl)-2-methoxyiminoacetic acid methyl ester. The method comprises the following steps: Step 1: 2-methyl-α-methoxyiminophenylacetonitrile is used as a raw material and dissolved in a methanol solvent; Step 2: the temperature is controlled at 40-50 DEG C, chlorine is slowly introduced, and the heat preservation reaction time is 5-6 hours; Step 3: methyl is chlorinated, and the hydrogen chloride generated at the same time causes the cyano group to be esterified, so that the key intermediate (E)-2-(2-chloromethylphenyl)-2-methoxyiminoacetic acid methyl ester of trifloxystrobin or kresoxim-methyl is obtained by a "one-pot method", and the temperature is lowered to 0-5 degrees after the heat preservation reaction is completed, and the product is filtered out. The invention uses 2-methyl-α-methoxyiminophenylacetonitrile as a raw material and adopts safe and reliable sodium nitrite as an oximation reagent, avoids the use of inflammable and explosive nitrites, avoids the use of expensive o-hydroxymethylphenylacetic acid lactone, has a safe and reliable reaction, low raw material cost, adopts a "one-pot method", has a simple and smooth process, a short route, and is suitable for industrialized scale-up production.

The present application relates to the technical field of pesticides, in particular to a kind of pyraclostrobin and prochloraz microemulsion and its preparation method and application, by weight percentage, including: pyraclostrobin 5-20%, prochloraz 20-40%, emulsifier 10%-34%, fertilizer compatible agent 6%-10%, solvent 5%-12%, cosolvent 8-15%, deionized water is made up to 100%.By adopting pyraclostrobin and prochloraz as effective active ingredients, under the action of specific emulsifier, fertilizer compatible agent, solvent and cosolvent, a microemulsion product with good pharmaceutical properties is obtained, which can cope with high and low temperature environment, adapt to various regional environments, transportation conditions and storage conditions, and the raw material is environmentally friendly, effectively reducing soil pollution, and has important significance for application in industry.

11 fungicide compositions mainly used for controlling crop diseases caused by Pyricularia oryzae and Colletotrichum spp.. Compound YJY-22 has a novel structure and a unique mode of action, and exhibits no cross-resistance with isoprothiolane, fenoxanil, pyraclostrobin, tricyclazole, azoxystrobin, mancozeb, captan, difenoconazole, prochloraz, chlorothalonil, or tebuconazole. Because compound YJY-22 and the described agents have different mechanisms of action and have no cross-resistance, combining compound YJY-22 and the described agents not only can broaden the antifungal spectrum and enhance antifungal efficacy, but also can delay fungicide resistance of plant pathogens, ensure high crop safety, expand the control spectrum, and meet the requirement of pesticide reduction with increased efficiency.

The present invention relates to personal care compositions comprising azoxystrobin having a minimum inhibitory concentration (MIC) of less than 1.0 ppm against Malassezia and at least 4-fold or greater MIC against Malassezia compared to a strobilurin selected from pyraclostrobin, fluoxastrobin, dimoxystrobin, kresoxim-methyl, trifloxystrobin or orbifluroxystrobin.

The invention provides a medicine composition for preventing and treating corn diseases and insect pests and application and a prevention and treatment method thereof, and particularly belongs to the technical field of disease and insect pest prevention and treatment. The invention provides a medicine composition for preventing and treating corn diseases and insect pests. The medicine composition comprises a first prevention and control medicine, a second prevention and control medicine, a third prevention and control medicine and a fourth prevention and control medicine, the first prevention and control drug is prepared from a macroelement water-soluble fertilizer, compound sodium nitrophenolate, emamectin benzoate and chlorantraniliprole; the second prevention and control drug is prepared from ethephon, brassinolide, a macroelement water-soluble fertilizer, emamectin benzoate and chlorantraniliprole; the third prevention and control drug is prepared from tebuconazole, pyraclostrobin, etoxazole, abamectin, a phosphate fertilizer and a nitrogen fertilizer; the fourth prevention and control medicine is prepared from pyraclostrobin, epoxiconazole, etoxazole, abamectin, bifenthrin, clothianidin, compound sodium nitrophenolate, phosphate fertilizer and nitrogen fertilizer. The medicine composition has the effects of increasing yield, preventing diseases, preventing insect pests and preventing lodging.

The present application relates to the technical field of pesticides, and provides a kind of high stability pyraclostrobin suspending agent and a preparation method thereof.A kind of high stability pyraclostrobin suspending agent, raw materials include pyraclostrobin, dispersing agent, wetting agent, thickening agent and water, and the dispersing agent is trifluoride containing hydroxyl group.Through the above technical scheme, the problem of poor stability of the related art nanoscale pyraclostrobin suspending agent with good efficacy is solved.

The invention discloses a bactericidal compound for preventing and treating plant fungal diseases and application, and belongs to the technical field of pesticides. According to the bactericidal compound disclosed by the invention, the bactericidal compound formed by combining a citral acylthiourea derivative LN-3Cl with kresoxim-methyl, combining a citral acylthiourea derivative LN-3F with thiophanate-methyl and combining a citral acylthiourea derivative LN-3OCH3 with tricyclazole can be used for preventing and treating rhizoctonia solani; the bactericidal compound formed by combining the citral acylthiourea derivative LN-3Br and the thiophanate-methyl can be used for preventing and treating phytophthora nicotianae; the germicidal compound formed by combining the citral acylthiourea derivative LN-2CH3 with chlorothalonil and combining the citral acylthiourea derivative LN-4CH3 with tebuconazole can be used for preventing and treating colletotrichum caringenum. As a synergistic component of an agricultural bactericide, the citral acylthiourea derivative remarkably improves the bactericidal activity, and the synergistic coefficient SR of the citral acylthiourea derivative is greater than 1.5.

The present invention discloses a pyraclostrobin and captan compound suspension and a preparation method thereof. The liquid comprises pyraclostrobin, captan, a wetting dispersant and a composite stabilizer; the composite stabilizer comprises an organic acid or its derivative, and also comprises an ascorbic acid fatty acid ester of formula (I) or its derivative; wherein the mass ratio of the organic acid or its derivative to the ascorbic acid fatty acid ester of formula (I) or its derivative is (0.5-5):1, and the acidity coefficient of the organic acid at 25°C is 2≤pKa≤5; in the compound suspension, the mass ratio of pyraclostrobin to captan is 1:(0.5-10). The present invention adds the composite stabilizer to the pyraclostrobin and captan compound suspension, maintains the pH of the suspension between 4 and 6, reduces the degradation rate of captan, which is as low as 0.5%, and also reduces the degradation rate of other effective active components in the liquid preparation. The present invention also reduces the risk of drug damage to the agent.

The present application relates to a kind of pyraclostrobin chlorothalonil water emulsion and its preparation method, it relates to the technical field of pesticide preparation, wherein, by mass percentage, the water emulsion includes pyraclostrobin 8-12%, chlorothalonil 16-24%, solvent 10-18%, composite surfactant 8-15%, photosynthesis promoter 2-6%, penetration spreader 3-8%, epichlorohydrin 1-3%, glycerol 3-6%, organic silicon defoaming agent 0.1-0.5%, the rest is water;The mass ratio of pyraclostrobin and chlorothalonil is 1:2.The present application realizes the rapid penetration of liquid medicine and the rapid dry of disease spot by accurate particle size control and formula system, simultaneously significantly enhances the photosynthesis of crops using photosynthesis promoter, realizes the dual effect of spot control and leaf, quality increase and yield increase while high-efficiency sterilization.

The application discloses a preparation method of pyraclostrobin and belongs to the technical field of pesticide synthesis. In order to solve the problems of low bromine atom utilization rate and generation of more low-concentration acid-containing wastewater in the production process of pyraclostrobin, the method is provided, which uses sodium bromide as a bromine source, controls the rate of the conversion of the sodium bromide aqueous solution into bromine and sodium chloride, and then realizes bromination in situ. After the reaction is completed, a series of post-treatments are performed to obtain o-nitrobenzyl bromide. Then, etherification and purification treatments are performed to obtain pyrazole benzyl ether (an important intermediate). Finally, reduction, acylation and methylation are performed by using mature technology, and pyraclostrobin is obtained. The sodium bromide can be directly purchased or recycled by simple recovery treatment of the waste liquid formed by the process and directly reused in the process. The method not only provides a new synthesis route for the preparation of pyraclostrobin, but also reduces the raw material cost and improves the bromine atom utilization rate under the premise of realizing the preparation of pyraclostrobin.

The invention relates to a pyraclostrobin slow-release agent and a preparation method thereof, the pyraclostrobin slow-release agent comprises a pyraclostrobin slow-release component, a dispersing agent, a thickening agent, a defoaming agent, a preservative and a pH regulator, the pyraclostrobin slow-release component comprises pyraclostrobin and an organic framework material, and the organic framework material comprises ferric chloride, a modifier and halloysite nanotubes. The application has the effect of improving the prevention and control performance of pyraclostrobin on crops, is green and environment-friendly, and reduces the pollution and damage phenomena on aquatic animals and plants.

Pesticidal mixtures comprising as active compounds A) the ethylsulfone compound of formula (I) and B) at least one further compound B selected from fipronil, lambda-cyhalothrin, bifenthrin, tefluthrin, alpha-cypermethrin, thiamethoxam, clothianidin, acetamiprid, imidacloprid, dinotefuran, tri-flumezopyrim, fenmezoditiaz, spinosad, spinetoram, abamectin, afidopyropen, indoxacarb; met-aflumizone, spiropidion, spidoxamat, chlorantraniliprole, cyantraniliprole, tetraniliprole, cyclaniliprole, broflanilide, isocycloseram; dimpropyridaz; and difenoconazole, prothioconazole, flutriafol, ipconazole, tebuconazole, mefentrifluconazole, triticonazole, fluoxytioconazole, metyltetraprole, azoxystrobin, trifloxystrobin, pyraclostrobin, sedaxane, penflufen, fluopyram, fluxapyroxad, pydiflumetofen, isoflucypram, cyclobutrifluram, oxathiapiprolin, fluoxapriprolin, metalaxyl, picarbutrazox, fludioxonil, thiophanat-methyl; methods and use of these mixtures for combating invertebrate pests such as insects, arachnids or nematodes in and on plants, and for protecting such plants being infested with pests, especially also for protecting plant propagation material as like seeds.

The invention discloses a double-response hollow ZIF nano system, a preparation method thereof and application of the double-response hollow ZIF nano system in resisting fungal infection of plants, relates to the technical field of nano materials, and particularly relates to a nano hybrid PYR (at) HZNs (at) TA (at) PT which is successfully prepared by loading a broad-spectrum bactericide, namely pyraclostrobin (PYR), with hollow ZIF-8 coordinated with tannic acid (TA) and wrapping the hollow ZIF-8 with pectin (PT) and has double response to pectinase and pH. Under the fungal microenvironment condition, the loaded medicine can be accurately released in response to the fungal infection microenvironment. Compared with a traditional pesticide, the nano-pesticide not only has good biological safety and double-response release characteristics, but also has in-vitro antibacterial activity, and a new thought is provided for research and application of the nano-pesticide.

The present application relates to a kind of pyraclostrobin chlorothalonil water emulsion and its preparation method, it relates to the technical field of pesticide preparation, wherein, by mass percentage, the water emulsion includes pyraclostrobin 8-12%, chlorothalonil 16-24%, solvent 10-18%, composite surfactant 8-15%, photosynthesis promoter 2-6%, penetration spreader 3-8%, epichlorohydrin 1-3%, glycerol 3-6%, organic silicon defoaming agent 0.1-0.5%, the rest is water;The mass ratio of pyraclostrobin and chlorothalonil is 1:2.The present application realizes the rapid penetration of liquid medicine and the rapid dry of disease spot by accurate particle size control and formula system, simultaneously significantly enhances the photosynthesis of crops using photosynthesis promoter, realizes the dual effect of spot control and leaf, quality increase and yield increase while high-efficiency sterilization.

The present invention relates to the technical field of pesticides, specifically to a pyraclostrobin and epoxiconazole microemulsion and a preparation method and application thereof, which comprises, by weight percentage: 2-15% of pyraclostrobin, 1-6% of epoxiconazole, 8%-30% of a polyoxyethylene ether emulsifier, 1-5% of a block polyether nonionic surfactant, 15-45% of a solvent, 3-15% of a cosolvent, 0.005-0.05% of a defoamer, and deionized water supplemented to 100%. By using pyraclostrobin and epoxiconazole as effective active ingredients, under the action of specific polyoxyethylene ether emulsifiers, block polyether nonionic surfactants, solvents, and cosolvents, the prepared microemulsion has the effects of protection, treatment, and leaf penetration and conduction, can better prevent and treat corn leaf blight, can also reduce the dosage, and delay and control the drug resistance of pathogens.

The present application relates to a pyraclostrobin and difenoconazole suspension and a preparation method thereof, and relates to the technical field of pesticides. The raw materials for preparation include the following components by mass: 5-10 parts of rosin-based grafted cellulose, 3-8 parts of benzene ring modified starch, 0.1-0.3 parts of glutaraldehyde, 10-30 parts of pyraclostrobin original medicine, 10-20 parts of difenoconazole original medicine, 6-10 parts of emulsifier, 1-2 parts of thickener, 0.9-1.5 parts of preservative, and water is supplemented to 100 parts. The preparation method comprises the following steps: preparing microcapsules by mixing pyraclostrobin original medicine, difenoconazole, rosin-based grafted cellulose and benzene ring modified starch; dispersing the microcapsules and the thickener in water, stirring to obtain a preliminary product, and grinding the preliminary product with a sand mill to obtain pyraclostrobin and difenoconazole suspension. The present application has the effect of improving the heat storage stability and anti-ultraviolet performance of the suspension.

The application discloses a tea tree summer short-bud cutting rapid seedling forming method, which comprises field nursery construction, seedbed treatment, cutting taking, cutting and field nursery management; the field nursery management comprises illumination management, water management, cutting post-pouring, 3-4 times of daily watering, soil humidity control at 65-75%, cutting initial stage management, 6-8 days after cutting, 17:00 spraying of thiophanate-methyl, 15% validamycin, humic acid foliar fertilizer and 34% propargite, 18-20 days after cutting, 17:00 spraying of kresoxim-methyl, 15% validamycin, humic acid foliar fertilizer, azoxystrobin-propineb and nitenpyram-pymetrozin, topdressing, 1 month after cutting, first time of topdressing of water-soluble compound fertilizer, 10 days of interval, 4 times of continuous topdressing, 10-12 cm of seedling height, second time of topdressing of water-soluble compound fertilizer and seedling training.

A fungicidal composition containing a fungicidally effective amount of the compound of Formula I, (S)-1,1-bis(4-fluorophenyl) propan-2-yl (3-acetoxy-4-methoxypicolinoyl)-L-alaninate, and at least one fungicide selected from the group consisting of epoxiconazole, prothioconazole, azoxystrobin, pyraclostrobin, fluxapyroxad, benzovindiflupyr, and chlorothalonil, provides synergistic control of selected fungi.

The invention discloses a preparation method of a thifluzamide and pyraclostrobin compounded microcapsule suspension-suspending agent, belongs to the technical field of agricultural bactericide preparations, and aims to solve the problems that the existing thifluzamide and pyraclostrobin compounded bactericide is single in dosage form, unstable in preparation process and insufficient in product efficacy and environmental safety. The preparation method comprises the following steps: firstly, preparing a 20% pyraclostrobin microcapsule suspending agent, dissolving a pyraclostrobin active compound by using an aromatic solvent, adding isocyanate to form an oil phase, dissolving tristyrylphenol polyoxyethylene ether by using deionized water to form a water phase, mixing and shearing the two phases, dropwise adding a polyamine high-molecular copolymer aqueous solution, and uniformly stirring to obtain the pyraclostrobin microcapsule suspending agent. The composition has the fast-acting property of thifluzamide and the long-acting property of pyraclostrobin, has an excellent prevention and treatment effect on wheat sharp eyespot, belongs to a low-toxicity pesticide, has relatively good safety on non-target organisms such as birds, bees and earthworms, meets the development requirements of green agriculture, and is suitable for industrial large-scale production.

The invention discloses a geraniol or citronellol-containing bactericidal composition and application thereof, and belongs to the technical field of pesticide compounding. The active ingredients of the bactericidal composition provided by the invention consist of geraniol or citronellol (A) and kresoxim-methyl or thifluzamide (B), and the molar ratio of A to B is (5: 95)-(25: 75). An antibacterial activity evaluation experiment proves that the composition has a remarkable synergistic effect, namely a synergistic coefficient SRgt, on plant diseases caused by rhizoctonia solani and colletotrichum frutescens in a specific ratio; the control effect of the composition is obviously superior to that of a single component. According to the invention, the dosage of chemical bactericides can be effectively reduced, the development of drug resistance of pathogenic bacteria is delayed, and an efficient and low-risk green solution is provided for solving the important plant fungal diseases.

The invention relates to the technical field of chemical production, and particularly discloses a preparation method of kresoxim-methyl. According to the method, the crystallization mother liquor of (E)-2-(2 '-bromomethyl phenyl)-methoxyiminoacetic acid methyl ester is taken as a raw material, and the content of impurities in the crystallization mother liquor is effectively reduced through hydrogen peroxide oxidation impurity removal, so that a reaction system for subsequently preparing kresoxim-methyl is relatively pure, and the treatment difficulty after reaction is reduced; then, a quaternary ammonium salt catalyst is selected as a catalyst for the condensation reaction, and a reaction solvent is replaced by a polar solvent, so that the selectivity and the conversion rate of the condensation reaction can be effectively improved, side reactions are reduced, and the yield and the purity of kresoxim-methyl are improved. According to the method, resource utilization of the crystallization mother liquor is achieved, raw material consumption is reduced, waste emission is reduced, meanwhile, the trend of global green chemistry and sustainable development is met, and a powerful guarantee is provided for long-term stable development of enterprises.

The invention relates to the technical field of chemical synthesis of pesticides, in particular to an environment-friendly synthesis process of pyraclostrobin for green agriculture based on a first condensation method, which comprises the following steps: taking 127g of parachloroaniline, adding 500ml of water and 100ml of concentrated hydrochloric acid, stirring, dissolving, cooling, slowly dropwise adding an aqueous solution containing 85g of sodium nitrite, and carrying out diazotization reaction; slowly adding the diazotization liquid into a solution containing 200g of sodium sulfite, heating to carry out reduction reaction, and acidifying the reaction liquid to obtain hydrazine salt; the key steps of synthesizing pyraclostrobin through a condensation method are greened and systematically optimized, so that the production efficiency and the product quality of the process are effectively improved. The total yield of the product is obviously higher than that of the traditional condensation method process, the purity can be stably kept at a relatively high level, and the application requirements of high-quality pesticides are completely met; meanwhile, the process can keep good stability under different parameter combinations, and the core problems of low yield and large purity fluctuation of the traditional process are effectively solved.

The present invention belongs to the technical field of A01N pesticides, and more specifically relates to a bactericidal composition and its microemulsion, preparation method and application. A bactericidal composition, the preparation raw materials include: pyraclostrobin and / or clofoconazole; the weight ratio of pyraclostrobin and clofoconazole is 1: (3-5). The microemulsion prepared by the present invention not only improves the stability of the active ingredient under the compound use of triphenyl phenol polyoxyethylene ether polyoxypropylene ether and naphthalenesulfonic acid sodium salt formaldehyde condensate, but also avoids the turbidity phenomenon of the microemulsion caused by the decrease of the bonding ability between the hydrophilic group and the water molecule in the system when used under high temperature conditions after compounding, thereby ensuring the normal use of the microemulsion.

The present application belongs to the technical field of pest control, and particularly relates to a kind of fungi of the order of Mucorales in the class of Sordariomycetes and its application. The fungi is preserved in China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 42531. The fungi can be used for screening hazelnut disease-resistant lines or controlling hazelnut black spot disease. The present application proves by tests that eight kinds of pesticides, including penthiopyrad, mancozeb, difenconazole, pyraclostrobin, thiram, tridemorph, kresoxim-methyl and thiophanate-methyl, all have inhibitory effects on the fungi, which provides a new direction for controlling hazelnut black spot disease.

The invention relates to the technical field of pesticides, and provides a high-stability pyraclostrobin suspending agent and a preparation method thereof. The high-stability pyraclostrobin suspending agent is prepared from pyraclostrobin, a dispersing agent, a wetting agent, a thickening agent and water, and the dispersing agent is trifluoride containing hydroxyl. Through the technical scheme, the problem of poor stability of the nanoscale pyraclostrobin suspending agent with good pesticide effect in the related technology is solved.

The utility model discloses a pyraclostrobin preparation system which comprises a bromination reaction kettle, an etherification reaction kettle, a reduction device, an acylation device and a methylation device, and purification devices are arranged on a material conveying pipeline between the etherification reaction kettle and the reduction device and a material conveying pipeline of the methylation device. The purification device consists of an impurity removal crystallizing tank, a washing tank and a drying box, an ethanol storage cylinder is arranged on the side edge of the impurity removal crystallizing tank, a temperature control jacket is wrapped on the outer wall of the impurity removal crystallizing tank, and a filter box is further arranged on the side edge of the impurity removal crystallizing tank. According to the utility model, pyrazole benzyl ether generated by the etherification reaction kettle is put into the purification device for purification treatment, so that higher purity can be obtained, the content of impurities in subsequent products is reduced, and meanwhile, pyraclostrobin generated by reaction of the methylation device is also put into the purification device for purification treatment, so that the purity of pyraclostrobin is improved. The content of impurities in a finished product is further reduced, so that pyraclostrobin with higher purity is prepared and generated.