80 results about "Fludioxonil" patented technology

The invention relates to the technical field of pesticides, and discloses a fluopyram compound and a preparation method thereof. The preparation method of the fluopyram compound comprises the following steps: 1) in the presence of a first organic solvent and first alkali, carrying out nucleophilic substitution reaction on a compound with a structure as shown in a formula (1) and a compound with a structure as shown in a formula (2); 2) carrying out a decarboxylation reaction on the nucleophilic substitution reaction product obtained in the step 1) in the presence of a first solvent and a first acid; 3) in the presence of a second solvent and a second acid, the decarboxylation reaction product obtained in the step 2) is subjected to a decyanation reaction to obtain the fluopyram compound, in the formula (1), X represents halogen, and R1 represents-COOC1-6 alkyl; in formula (2), R2 represents an alkyl group having 1-6 carbon atoms. According to the preparation method of the fluopyram compound, the yield is higher, and the operation is more convenient. # imgabs 0 # formula (1) # imgabs 1 # formula (2).

The invention relates to the technical field of seed treatment suspending agents. The invention discloses a seed treatment suspending agent containing clothianidin, prothioconazole and fludioxonil as well as a preparation method and application of the seed treatment suspending agent. The seed treatment suspending agent is prepared from the following raw materials: clothianidin, prothioconazole, fludioxonil, a bactericidal synergist, a dispersing agent, a wetting dispersing agent, a thickening agent, a preservative, an anti-freezing agent, a film-forming agent, warning coloration, a de-foaming agent and de-ionized water. The seed treatment suspending agent containing clothianidin, prothioconazole and fludioxonil prepared by the invention is good in suspending performance, low-temperature stability and heat storage stability. The application amount and the harm to the environment are reduced. The invention also relates to application of the seed treatment suspending agent in prevention and treatment of diseases and insect pests.

The invention relates to a synergistic composition for preventing and treating celery root rot. The tannic acid and fludioxonil in the synergistic composition disclosed by the invention show a relatively good synergistic effect in a compounding mass ratio range of (1: 50)-(50: 1). According to the synergistic composition disclosed by the invention, tannic acid with weak bacteriostatic activity on celery root rot and fludioxonil with excellent bacteriostatic activity are compounded for use, so that a remarkable synergistic effect is achieved, the prevention and treatment effect is far higher than that of a single agent, and the synergistic effect is achieved by reducing pesticide. Besides, according to the synergistic composition disclosed by the invention, the plant source tannic acid and the chemical bactericide fludioxonil are compounded for use, and the use amount of chemical agents is reduced, so that the resistance risk of the chemical bactericide is reduced, pesticide residues and ecological environment pollution are reduced, and the synergistic composition has a good application prospect.

The invention belongs to the field of pesticide chemistry, and relates to preparation of nano-pesticides, in particular to a nano-pesticide with a two-way conveying function and a preparation method and application of the nano-pesticide. MIL-101 (FeIII, CuII) is used as a pesticide carrier, non-systemic fludioxonil pesticide molecules are loaded in a solution, and then the MIL-101 (CuII, FeIII) MOF nanoparticles loaded with the fludioxonil pesticide are encapsulated with chitosan oligosaccharide in the aqueous solution. The nanometer pesticide preparation prevents fludioxonil pesticide molecules from being released in a solvent in advance, the retention amount of the fludioxonil pesticide on leaf surfaces is increased, the lasting pesticide effect of the fludioxonil pesticide molecules in target crops is improved, the nanometer pesticide preparation is environmentally friendly, and the purposes of disease control, agricultural yield increase and quality improvement are achieved. The nano-carrier provided by the invention can be bidirectionally conveyed in crops through leaf surface pores or root hairs, so that the conveying efficiency of fludioxonil pesticide molecules is improved, and the application scene of the nano-carrier is widened.

The invention discloses a pH-responsive drug-loaded microcapsule based on an electrostatic self-assembly technology and a preparation method of the pH-responsive drug-loaded microcapsule. The drug-loaded microcapsule is prepared from the following raw materials in parts by weight: 0.1-1 part of fludioxonil; 1-3 parts of sodium lignin sulfonate; 4-7 parts of an organic solvent; 0.8-2 parts of an emulsifier; 1.0 to 2.0 parts of a colloid protective agent; 4-7 parts of a cationic monomer; 0.4-2 parts of soluble metal salt and 40-70 parts of deionized water; the invention also specifically discloses a preparation method of the drug-loaded microcapsule. The microcapsule is constructed by using a clean, simple, convenient and environment-friendly electrostatic self-assembly technology, and the capsule shell is effectively reinforced through iron ions, so that the effective controlled release of the pesticide is synergistically realized, the use of an organic solvent is remarkably reduced, the production cost is reduced, and the environmental ecological benefits are improved.

The invention discloses a pH response controlled release type fludioxonil microcapsule pesticide with high slow release performance and a preparation method of the pH response controlled release type fludioxonil microcapsule pesticide. The fludioxonil microcapsule pesticide is prepared from the following raw materials in parts by weight: 0.1-0.3 part of fludioxonil; 0.2 to 0.3 part of ethyl cellulose; 5-10 parts of an organic solvent; 0.05 to 0.1 part of an emulsifier; 1.0 to 2.0 parts of a dispersant; 0.02 to 0.03 part of dopamine hydrochloride; and 20 to 50 parts of deionized water. The invention also specifically discloses a preparation method of the fludioxonil microcapsule pesticide. The invention effectively solves the problem that most of microcapsule pesticides in the prior art only have a slow release effect and cannot realize effective controlled release of pesticides, and the prepared microcapsule pesticide can reduce the use of organic solvents, reduce the production cost and achieve better environmental and ecological benefits.

The invention relates to a fluazinam-containing pesticide composition, a seed treatment suspending agent as well as a preparation method and application of the seed treatment suspending agent. The invention provides a fluazinam-containing pesticide composition. The active ingredients of the fluazinam-containing pesticide composition comprise fluazinam, fludioxonil and clothianidin, the mass ratio of the clothianidin to the fluazinam to the fludioxonil is (6-7): (0.4-0.8): (0.2-0.6), and the composition has an excellent synergistic effect. The suspending agent for seed treatment is compounded with a film-forming agent composed of acrylate and polydimethylsiloxane according to a specific proportion, it can be ensured that seed coats are not prone to falling off after being coated, meanwhile, adjustment can be conducted according to environmental adaptability, a coating layer is evenly mixed with a pesticide and pigment, the release time of effective components of pesticides is prolonged, and the pesticide effect is improved. The problem of seed coating fading is effectively solved, and the pesticide composition has an excellent effect in prevention and treatment of agricultural diseases such as peanut root rot, grub, wheat stem rot and aphid.

The invention discloses a dandelion seed coating agent and a preparation method and application thereof.The seed coating agent comprises a growth regulator, a bactericide and an insecticide, the growth regulator comprises 2, 4-epibrassinolide, monopotassium phosphate and gibberellin, the bactericide comprises difenoconazole, metalaxyl-M and fludioxonil, the insecticide comprises abamectin and thiamethoxam, and the insecticide comprises a thiamethoxam aqueous solution. The seed coating agent is prepared from the following effective components in percentage by mass: 1 to 2 percent of 2, 4-epibrassinolide, 1 to 2 percent of monopotassium phosphate, 0 to 0.1 percent of gibberellin, 0.1 to 0.3 percent of difenoconazole, 0.1 to 0.2 percent of metalaxyl-M, 0.1 to 0.2 percent of fludioxonil, 0.1 to 0.3 percent of thiamethoxam, 0.1 to 0.3 percent of abamectin and the balance of water. After seeds are treated by the seed coating, pathogenic bacteria carried by the dandelion seeds can be killed, the activity and disease resistance of the dandelion seeds are remarkably improved, and the vegetative growth yield of dandelions is increased.

The invention discloses a mixed suspended seed coating agent for preventing diseases and insect pests in a peanut seedling stage, relates to the technical field of peanut suspended seed coating agents, and aims to solve the technical problems that pungent peculiar smell exists, the insecticidal effect is not comprehensive, the effect of improving soil is not achieved, and rooting and germination of peanuts are not facilitated in the prior art. The mixed suspended seed coating comprises the following components in parts by weight: 10-20 parts of fluopyram, 5-8 parts of a fludioxonil suspending agent, 10-20 parts of difenoconazole, 10-20 parts of trifloxystrobin, 3-5 parts of a plant growth regulator, 3-5 parts of trace elements, 5-10 parts of jatropha curcas biodiesel, 30-45 parts of water, 1-5 parts of an auxiliary agent, 1-3 parts of amino-oligosaccharin, 1-3 parts of lentinan and 1-3 parts of harpin protein. According to the mixed suspended seed coating, 1-3 parts of thiophanate methyl, 1-3 parts of sophocarpidine, 1-3 parts of phoxim, 3-5 parts of herba portulacae, 3-5 parts of tobacco shreds, 3-5 parts of sasangua cake and 3-5 parts of dye are included, the pungent peculiar smell can be reduced, various pests can be effectively killed, and meanwhile the sasangua cake can improve the soil structure.

A pesticidal composition comprising (A) chlorantraniliprole, (B) fipronil, (C) metalaxyl or metalaxyl-M, (D) fludioxonil, and (D) difenoconazole, and use of the compositions in agriculture, especially for treatment of plant propagation material.

The application discloses a seed treatment suspension agent containing a stable security agent, and the effective component of the seed treatment suspension agent contains pyraclostrobin, fludioxonil and thiamethoxam, the mass ratio of pyraclostrobin, fludioxonil and thiamethoxam is (1-5):(1-2):(10-100), the effective component is used in an amount of 4-40 wt%, and the stable security agent at least includes ascorbic acid fatty acid ester or its derivative of formula (I), the ascorbic acid fatty acid ester of formula (I) is selected from ascorbic acid laurate, ascorbic acid olivate and ascorbic acid stearate; in the seed treatment suspension agent, the mass ratio of pyraclostrobin and the stable security agent is 100:(0.1-100). The application maintains the seed treatment suspension agent between pH 4 and 9 by adding the stable security agent in the seed treatment suspension agent, reduces the degradation rate of the effective component, reduces the risk of pesticide damage, and has safety to crop seeds.

The application discloses a propiconazole-azoxystrobin- clothianidin seed treatment suspending agent and a preparation method and application thereof, and belongs to the technical field of pesticide preparations; the agent takes propiconazole, azoxystrobin and clothianidin as active ingredients, takes beta-nicotinamide mononucleotide (NMN) as a functional antimicrobial component, and is supplemented with styrene-maleic anhydride copolymer sodium salt, fatty alcohol polyoxyethylene ether, xanthan gum, magnesium aluminum silicate, glycerol, polydimethylsiloxane defoaming agent, sodium benzoate, polyvinyl alcohol and deionized water to prepare the agent. The application is suitable for seed coating treatment for preventing and treating rice false smut, thrips and wheat sharp eyespot and aphids; NMN promotes the accumulation of phenolic compounds in the phloem of plants, and cooperates with clothianidin on the same insecticidal target, thereby significantly improving the prevention and treatment effect on aphids and thrips; the degradation product of NMN promotes the proliferation of beneficial microorganisms in the rhizosphere, improves soil enzyme activity, and realizes soil micro-ecological restoration.

The invention discloses a bactericidal composition containing WML-01 and fludioxonil, the active ingredients of the bactericidal composition comprise the WML-01 and the fludioxonil, and the mass ratio of the WML-01 to the fludioxonil is (10: 1)-(1: 10). The bactericidal composition can be used for preventing and treating rice bakanae disease, wheat stem rot, wheat scab, soybean root rot, rice blast, pepper anthracnose and sclerotinia rot of colza, can effectively solve the problems of few disease prevention and treatment agents, unstable prevention effect, high prevention and treatment cost and drug resistance in current production, and has a wide market application prospect.

According to the continuous production method of the pyraclostrobin microcapsule suspending agent preparation, the feeding time and the shearing time are shortened, the material shearing efficiency is improved, the shearing emulsification is sufficient, the particle size distribution is uniform, and the energy consumption is reduced. Materials cannot be seriously heated due to the shearing time process, and the stability and the quality of products are not affected.

The invention relates to the technical field of seed treatment, and particularly discloses a seed treatment suspending agent containing prothioconazole, fludioxonil and chlorantraniliprole and a preparation method of the seed treatment suspending agent. The invention discloses a seed treatment suspending agent containing prothioconazole, fludioxonil and chlorantraniliprole. The suspending agent is prepared from the following raw material components in percentage by mass: 5 to 10 percent of prothioconazole microcapsules, 1 to 5 percent of silicon carrier loaded fludioxonil, 1 to 3 percent of chlorantraniliprole, 0.3 to 0.7 percent of lentinan, 0.3 to 0.7 percent of humic acid, 0.3 to 0.7 percent of chelated zinc, 10 to 15 percent of ethylene glycol, 3 to 5 percent of filler, 0.5 to 1.5 percent of dispersing agent, 0.05 to 0.15 percent of thickening agent, 2 to 3 percent of film-forming agent, 10 to 15 percent of oil and the balance of deionized water. The suspending agent disclosed by the invention not only has a relatively good prevention and treatment effect on wheat root rot, but also has a relatively high germination rate of treated wheat seeds.

The invention provides a nano bactericide as well as a preparation method and application thereof. The magnolol / ZIF-8 nano composite material Magat ZIF-8 synthesized on the basis of a competitive coordination strategy simultaneously contains two coordination structures of zinc ion-2-methylimidazole and zinc ion-magnolol, so that the inhibition effect of the ZIF-8 on pathogenic fungi is remarkably improved. Besides, a compound synergistic experiment result shows that a synergistic effect exists between the MagatZIF-8 and the bactericide fludioxonil, and a new thought is provided for reduction and synergism of the bactericide.

This invention relates to an aqueous composition comprising: (a) at least 10% by weight of fludioxonil over the total weight of the composition, (b) at least one polyoxyalkylene copolymer having an average molecular weight up to 4000 g / mol, (c) at least one dispersing agent, and (d) water.

The invention belongs to the technical field of organic synthesis, and particularly relates to fludioxonil and a synthesis method thereof, and the synthesis method of fludioxonil comprises the following steps: synthesizing 3-methyl salicylaldehyde by using o-cresol; the method comprises the following steps: oxidizing 3-methyl salicylaldehyde into 3-methyl catechol; 3-methyl catechol is used for synthesizing methyl benzodioxole; chloridizing methyl benzodioxole to obtain a first intermediate; performing fluorine-chlorine exchange on the first intermediate to obtain a second intermediate; preparing a reaction solution by using the second intermediate, and performing electro-catalysis on the reaction solution to obtain a third intermediate; synthesizing a cinnamate intermediate by using the third intermediate; and synthesizing fludioxonil by using the cinnamate intermediate. According to the synthesis method, butyl lithium is not used as a catalyst, synthesis conditions are mild and easy to control, the product yield and purity are high, and the whole synthesis process is clean and safe.

The application is a barley saline-alkali tolerant land cultivation method based on water-salt synergistic regulation and rhizosphere micro-ecological optimization, discloses a barley saline-alkali tolerant six-dimensional closed loop cultivation technical system for sustainable utilization of saline-alkali land, and specifically has the following contents: 1. hierarchical composite improvement: according to the soil conductivity and pH value, the mild saline-alkali area is improved by straw mulching and slow-release humic acid-calcium alginate granular fertilizer surface layer improvement; the moderate and severe saline-alkali area is improved by double-layer deep ploughing barrier breaking, deep application of gypsum combined with salt-removing functional bacteria biochar-based microbial inoculant, and salt-alkali obstacle is synergistically reduced. 2. whole-process adaptive regulation: the variety carrying HvNHX1 / HvSOS1 salt-tolerant molecular marker is selected, and the resistance is activated by the coating of fenhexamid-chitosan oligosaccharide-nano selenium; the double-mode irrigation of "drip irrigation + shallow buried infiltration irrigation" is matched, the salt threshold value is established to trigger leaching; the rhizosphere is strengthened by silicon-based amino acid water-soluble fertilizer, and green prevention and control is integrated. The technology can increase yield by 32.5% to 48.7% in moderate saline-alkali land, can reduce salt and improve soil year by year, is suitable for large-scale production in main saline-alkali areas, and has significant application prospect.

The application provides a nano bactericide and a preparation method and application thereof. The Mag@ZIF-8 nano composite material synthesized based on a competitive coordination strategy and containing two coordination structures of zinc ion-2-methyl imidazole and zinc ion-magnolol simultaneously, significantly increases the inhibition of ZIF-8 on pathogenic fungi. In addition, the results of the synergistic effect experiment show that there is a synergistic effect between Mag@ZIF-8 and the bactericide fludioxonil, which provides a new idea for the synergistic effect of the bactericide in a reduced amount.

The invention relates to a thiophanate-methyl and fludioxonil eutectic crystal and a preparation method thereof. Both the thiophanate-methyl and the fludioxonil are active ingredients of a bactericide, and co-crystals are formed through intermolecular interaction such as hydrogen bonds and the like. A liquid-assisted grinding method and a solvent evaporation method are respectively adopted for preparation. In the co-crystal, the water solubility of the thiophanate-methyl is reduced, the threat of leaching and runoff of the thiophanate-methyl to aquatic ecology is reduced, the water solubility of the fludioxonil is improved, and the bioavailability of the fludioxonil is improved. Under the condition that the synergistic effect of the two bactericides is reserved, the environment friendliness and bioavailability of the pesticide are improved, the lasting period of the pesticide is prolonged, the process is simple, and practical application and production are facilitated.

The invention relates to the technical field of agricultural bactericides, in particular to a fludioxonil stability-enhanced preparation method, which comprises the steps of stable additive screening, additive ratio optimization, step-by-step mixing process design, preparation performance test, formula parameter adjustment and long-term storage experiment. The stability of fludioxonil under the conditions of high temperature, high humidity and strong light is remarkably improved from two aspects of physicochemical property optimization and preparation process improvement through a multi-dimensional synergistic stabilization technology. The invention further provides a preparation system and device, and efficient preparation is achieved by carrying the method. The method can comprehensively cope with the influence of various environmental variables on the fludioxonil stability, simplifies the preparation process, reduces the production cost, and meets the requirements of modern agriculture on efficient and stable bactericides.

A mixing vessel for a suspension containing pyraclostrobin, fludioxonil, and terpineol includes a support and a shell mounted on the support, a mixing mechanism sealed on the shell, and a discharge mechanism mounted at the bottom of the shell. The mixing mechanism includes a drive assembly sealed on the shell with its drive shaft extending into the shell, two mixing components (a first and a second) evenly distributed and staggered on the drive shaft, and a lifting assembly for driving the first and second mixing components in a mixing mode. This invention, through the coordinated design of the drive assembly, lifting assembly, and the first and second mixing components in the mixing mechanism, achieves the switching between high-speed shear mixing and low-speed mixing modes, effectively improving the mixing effect.

The invention discloses an efficient synthesis process of a fludioxonil intermediate, and belongs to the technical field of organic synthesis.The efficient synthesis process comprises the steps that pores of supported biochar powder are filled with nanometer aluminum oxide and nanometer cerium oxide, then metal oxide biochar powder is modified through a silane coupling agent, Pd-MOF is grafted to the modified biochar powder, and the modified biochar powder is modified through a silane coupling agent to obtain the fludioxonil intermediate. The three-dimensional space structure of MOF is utilized to provide more active sites for palladium, the catalytic efficiency of palladium can be improved, fluorine ions are promoted to replace chloride ions, efficient reaction is facilitated, the porous structure in the composite charcoal powder can improve the loading rate of nano aluminum oxide and nano cerium oxide, and the catalytic activity of palladium is improved. Lewis acid sites on the surfaces of the nano aluminum oxide and the nano cerium oxide can adsorb hydrogen fluoride molecules, the hydrogen fluoride molecules are enriched in composite catalyst powder in a physical adsorption and chemical combination mode through the nano aluminum oxide and the nano cerium oxide, then the hydrogen fluoride and excessive potassium fluoride generate potassium bifluoride, and the thermal decomposition reaction rate of the potassium bifluoride is inhibited.

The invention refers to a fungicide mixture comprising the biocides thiabendazole (TBZ), pyrimethanil (PYM) and fludioxonil (FDL), wherein the total amount of FDL based on the entire amount of biocidal actives is greater than 2 wt. %.

This invention discloses a mixing vessel for producing suspensions containing pyraclostrobin and fludioxonil, belonging to the field of material mixing technology. It includes a mixing vessel body with a lid, and a drive frame inside the mixing vessel body. The drive frame is equipped with a stirring assembly, a liquid-liquid exchange assembly, and an external liquid-inward pushing assembly. The stirring assembly is located in the middle of the mixing vessel body to continuously stir the suspension. This invention utilizes the liquid-liquid exchange assembly, employing the reciprocating motion of a piston within the exchange plunger body, to forcibly draw liquid from the bottom of the vessel body to the surface for discharge, forming a forced vertical circulation. This allows newly added pyraclostrobin technical, thickeners, defoamers, and other lightweight materials to be quickly carried below the liquid surface, preventing prolonged floating, excessively high local concentrations, and the formation of clumps (fish eyes). The forced vertical circulation and horizontal pushing significantly shorten the overall mixing time and significantly reduce energy consumption.

The invention discloses a composition for controlling sclerotinia sclerotiorum, nano-particles and a preparation method and application thereof, and relates to the technical field of pesticides, the nano-particles comprise active components and a carrier, the active components are fludioxonil, fluindazole and difenoconazole, the ratio of fludioxonil to fluindazole to difenoconazole is (1-4): (1-7): (1-6), the carrier is a chitosan nano-carrier, and the carrier is a chitosan nano-carrier. The active component is entrapped in the nano-carrier. Compared with traditional nano-particles, the chitosan nano-particles have good biocompatibility, the preparation process is simple, the cost is low, and the chitosan nano-particles are safe and efficient; the optimal compounding ratio of the bactericides is screened out, the three bactericides are dissolved in the organic solvent and slowly dropped into the prepared chitosan nano-carrier suspension, and the corresponding drug-loaded nano-particles are obtained, the stable chitosan nano-carrier can be prepared at a high speed through the preparation method, meanwhile, the utilization rate can be effectively increased after drug loading, and the drug-loaded nano-particles are suitable for large-scale production. The sterilization effect is enhanced.

The application discloses a bactericidal composition containing WML-01 and fludioxonil, and active ingredients of the bactericidal composition include WML-01 and fludioxonil, and the mass ratio of the WML-01 and the fludioxonil is 10:1-1:10. The bactericidal composition can be used for preventing and treating rice false smut, wheat basal stem rot, wheat scab, soybean root rot, rice blast, pepper anthracnose and rape sclerotinia rot, can effectively solve the problems of less bactericides for preventing and treating the diseases, unstable prevention and treatment effect, high prevention and treatment cost and drug resistance in current production, and has a wide market application prospect.

This invention relates to a method of controlling, limiting or preventing an infestation of a plant by Oomycetes, which comprises applying to propagation material of said plant, a pesticidal combination comprising a phosphorus-based compound as active ingredient A, and an active ingredient B selected from acibenzolar-S-methyl, fludioxonil, fluxapyroxad, inpyrfluxam, mefentrifluconazole, prothioconazole, sedaxane, triticonazole, oxathiapiprolin, fluoxapiprolin, azoxystrobin, difenoconazole, fluopyram, ipconazole, metyltetraprole, silthiofam, dimethomorph, thiophanate-methyl, natamycin, benzovindiflupyr, pydiflumetofen, picarbutrazox, isocycloseram, cyclobutrifluram, broflanilide, thiamethoxam, imidacloprid, clothianidin, cyantraniliprole, chlorantraniliprole, tetraniliprole, fipronil, and any mixture thereof.

This invention relates to a method of controlling, limiting or preventing an infestation of a plant by Ascomycota phytopathogens, which comprises applying to propagation material of said plant, a pesticidal combination comprising a phosphorus-based compound as active ingredient A, and an active ingredient B selected from acibenzolar-S-methyl, fludioxonil, fluxapyroxad, inpyrfluxam, mefentrifluconazole, prothioconazole, sedaxane, triticonazole, oxathiapiprolin, fluoxapiprolin, azoxystrobin, difenoconazole, fluopyram, ipconazole, metyltetraprole, silthiofam, dimethomorph, thiophanate-methyl, natamycin, benzovindiflupyr, pydiflumetofen, cyclobutrifluram, metalaxyl-M (mefenoxam) picarbutrazox, isocycloseram, broflanilide, thiamethoxam, imidacloprid, clothianidin, cyantraniliprole, chlorantraniliprole, tetraniliprole, fipronil, and any mixture thereof.