63 results about "Metalaxyl" patented technology

This invention relates to the field of pesticide technology, particularly to the field of IPC A01N, and more specifically, to a dry suspension concentrate of metalaxyl-mancozeb and its preparation method. By weight percentage, the raw materials are: 10-72% mancozeb technical grade, 1-10% metalaxyl technical grade, 7-35% surfactant, 5-20% disintegrant, 0.1-2% defoamer, and filler to 100%. The metalaxyl-mancozeb dry suspension concentrate of this invention employs multi-stage grinding to control the particle size of the suspension concentrate to below 5μm, the suspension rate to ≥90%, and the moisture content to below 2.0%. It features strong atomization and dispersibility, rapid wetting, high suspension rate, strong penetration, and non-degradation at room temperature. In use, it reduces pesticide usage while improving control efficacy.

The invention discloses a preparation method and application of a cobalt-doped biomass charcoal catalyst, and particularly relates to the preparation method of the catalyst comprising the following steps: S1, pretreatment of biomass charcoal, S2, preparation of a catalyst precursor, and S3, high-temperature calcination. According to the method, the corn straw is used as a biomass charcoal raw material, the preparation cost of the catalyst is reduced, an economic basis is provided for large-scale application of the catalyst, a degradation experiment of metalaxyl with different catalyst concentrations shows that when the concentration of the cobalt-doped biomass charcoal catalyst is increased, the degradation rate of metalaxyl is also increased, and the degradation rate of metalaxyl is increased. The traditional Chinese medicine residue is used as a biomass charcoal raw material, the traditional Chinese medicine residue is a waste obtained after traditional Chinese medicine production and is used for preparing the catalyst, resource utilization of the waste is achieved, solid waste discharge is reduced, and meanwhile three groups of experimental results show that the catalyst has efficient degradation capacity on acetamiprid.

The invention discloses a method for rapidly detecting pesticide residues in blueberries, and relates to the technical field of blueberry pesticide detection.The method comprises the steps that 10 g of a fully-ground blueberry sample is placed in a 100 ml centrifuge tube with a plug, 10 ml of a 0.1 mol / L hydrochloric acid aqueous solution and 10 ml of dichloromethane are added, 100 microliters of a mixed internal standard solution is added, after vortex oscillation is conducted for about 30 min, centrifugation is conducted for 5 min at the speed of 5000 r / min, 2 ml of a lower layer organic phase is taken, and the concentration of the lower layer organic phase is 10 ml; and after blow-drying by a nitrogen blowing instrument, adding 2ml of methanol for redissolving, and then adding an LCMS instrument for detection. The detection method disclosed by the invention can be used for simultaneously detecting 11 types of blueberry bactericides in national food standards and three types of bactericides such as mancozeb, metalaxyl and procymidone which are widely used in blueberry production at present. The result of the analysis method shows that the linearity of most components is good in the range of 5-100 g / L, the recovery rate of 14 pesticides is 94.9%-101.3% in the range of 5-50 [mu] g / kg, and the detection limit and the quantification limit of the method are 0.001 [mu] g / g-0. 03 [mu] g / g and 0.005 [mu] g / g-0. 010 [mu] g / g respectively. The method is simple, convenient and rapid to operate, and the sensitivity, accuracy and precision can meet the technical requirements of detection of various pesticide residues.

The application provides a synthesis process of metrafenone, in which inorganic alkali KOH is used as a catalyst, a key intermediate 4-(((5,5-dimethyl-dihydroisoxazole-4-yl)thio)methyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-ol can be obtained at low production cost and high yield, metrafenone is prepared through substitution reaction and oxidation reaction, the reaction yield is high, raw materials are simple and easy to obtain, three-waste emissions are small, and the process is beneficial to industrial mass production.

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.

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 invention relates to the technical field of biopesticides, and provides a slow-release insecticide for landscaping and a preparation method thereof.The slow-release insecticide is prepared from, by weight, 5%-20% of clothianidin, 1%-5% of cyromazine, 1.5%-2.5% of metalaxyl hymexazol, 0.8%-1.2% of humic acid, 5%-8% of chitosan, 3%-4% of polylactic acid, 1.5%-2.5% of nanometer titania, 0.5%-0.8% of plant source auxiliaries and the balance water; compared with existing insecticides, a'stepped release 'system (clothianidin rapidly controls insects in the early stage and cyromazine is long-acting and stable in the later stage) is formed through a nano slow release technology (chitosan nanoparticles and PLA microspheres), synergistic prevention and control of overground and underground insects are effectively achieved, the instantaneous concentration of the insecticide in the environment is reduced, and the resistance selection pressure is reduced.

The present application relates to the technical field of pesticides, especially to the field of IPC A01N, more particularly to a preparation method of metalaxyl-M·mancozeb dry suspension agent. The present application can reduce or even eliminate foam by first emulsifying and dispersing metalaxyl crude oil alone and then adding other raw materials such as mancozeb into a blending kettle, on the one hand, the efficiency of wet sanding is improved, and the preparation time is shortened, and the efficiency of wet sanding can be improved to 727 kg slurry / h; on the other hand, in the subsequent production spraying process, the stability of the pressure during spray drying is improved, the machine is not stopped for cleaning due to nozzle blockage, and the liquid spraying quality per unit time is improved, thereby the production capacity is improved, and the production capacity can be improved to 1100 kg / 8h.

The invention relates to a metalaxyl-M and ethylicin soluble concentrate and a preparation method thereof, and belongs to the technical field of pesticide preparations. By screening the solvent and the cosolvent, the metalaxyl-M and ethylicin soluble concentrate with good storage stability and water dilutability is prepared, and the soluble concentrate has a good control effect on tomato leaf mold. The solvent 1, 3-cyclohexane diol has a cyclic structure and two hydroxyl groups located at the meta-position, on one hand, metalaxyl-M and ethylicin are not prone to agglomeration after being dispersed, dissolved and diluted through the cyclic structure and the steric hindrance barrier effect of the two hydroxyl groups located at the meta-position, and on the other hand, metalaxyl-M and ethylicin are not prone to agglomeration after being dispersed, dissolved and diluted; on the other hand, the soluble concentrate is endowed with good hydrophilicity and lipophilicity through two hydroxyl groups and an aliphatic ring chain, and the water dilution capacity is improved. Sulfur atoms in the cosolvent can improve affinity compatibility of a system and ethylicin, hydroxyl, carboxyl and quaternary ammonium salt groups can improve hydrophilicity, and a branched structure can improve steric hindrance of metalaxyl-M and ethylicin and improve water dilution stability and storage stability.

This invention discloses a compound seed treatment agent containing metalaxyl-M and tebuconazole, its preparation method, and its uses, belonging to the technical field of seed treatment agents. The suspension of this invention uses metalaxyl-M, tebuconazole, and sodium selenite as the main components, supplemented with emulsifying and dispersing agents, wetting and dispersing agents, antifreeze agents, suspending agents, film-forming agents, and warning colors, and is prepared by adding deionized water to a sufficient volume. Metalaxyl-M targets and inhibits ribosomal RNA polymerase I of oomycete pathogens, while tebuconazole targets and inhibits sterol 14α-demethylase. The two have complementary fungicidal spectra, synergistically controlling maize stalk rot and maize head smut. Sodium selenite, by inhibiting the oxidative stress defense system of pathogenic fungi involving glutathione and thioredoxin, promotes the effects of the two main components and simultaneously remediates selenium-deficient soils. This invention is suitable for the green and efficient control of maize stalk rot and head smut, and also has the function of ecological restoration of selenium-deficient soils.

The invention belongs to the technical field of agricultural pesticides, and particularly relates to a seed treatment suspending agent containing metalaxyl-M and application. The seed treatment suspending agent comprises the following components in percentage by weight: 1.5-60% of an active component, 1-20% of a wetting dispersant, 0-5% of a grinding aid, 1-10% of an anti-freezing agent, 0.01-2% of a thickening agent, 1-10% of a film-forming agent, 5-20% of warning coloration and the balance of deionized water, wherein metalaxyl-M is contained in the active component. According to the seed treatment suspending agent disclosed by the invention, the problems that the metalaxyl-M liquid raw medicine is difficult to disperse and wrap a solid raw medicine in the preparation process of the seed treatment suspending agent and is adhered to sanding equipment and the sanding efficiency of the solid raw medicine is reduced are effectively solved through the matching combination and reasonable proportioning of the wetting dispersant, the suspension rate of a sample is improved, and the viscosity increase after heat storage is effectively controlled. The seed treatment suspending agent disclosed by the invention is excellent in performance index and good in physical stability.

The application discloses a special medicine fertilizer of metalaxyl-M and azoxystrobin, and a preparation method and application thereof, and belongs to the technical field of special medicine fertilizers. The special medicine fertilizer of metalaxyl-M and azoxystrobin is composed of the following components in percentage by weight: 0.1-2% of metalaxyl-M, 0.1-2% of azoxystrobin, 1-10% of fungicide metabolite, 0.5-1.5% of sophorose lipid, 0.2-3% of ethylene glycol, 5-20% of nitrogen, phosphorus and potassium, 0.1-2% of calcium, 0.1-2% of magnesium, and the balance of water-soluble organic matter filler. The fungicide metabolite and the sophorose lipid prepared by the specific method are synergistic with the metalaxyl-M and the azoxystrobin, so that the purpose of reducing the application amount of the pesticide fertilizer and increasing the efficiency is achieved.

The present application relates to a kind of fungicidal composition containing prothioconazole and mefenoxam in the use for preventing and treating peanut diseases;The pesticide composition at least includes active ingredient A prothioconazole and active ingredient B mefenoxam, the mass ratio of the active ingredient A prothioconazole and active ingredient B is 1:50-50:1.The fungicidal composition of the present application can be used for preventing and treating various diseases on peanut, has good control effect, can prolong the effective period of pesticide, reduce the frequency of use, effectively reduce the use amount of active ingredient and use cost, delay the generation and development of resistance, and is environment-friendly.

The invention discloses a seed treatment agent containing metalaxyl-M (A), benziothiazolinone (B) and pydiflumetofen (C) and application of the seed treatment agent. The mass ratio of the metalaxyl-M to the benziothiazolinone to the pydiflumetofen is (1-10): (1-5): (1-10). Secondly, the three effective components are compounded and prepared into the seed treatment suspending agent, and the seed treatment suspending agent can effectively prevent and treat rice bakanae disease, rice seedling rot, peanut damping-off and corn stalk rot. Through synergistic interaction of the three components, the bactericidal spectrum is effectively expanded, and the emergence rate of rice, peanut and corn seeds and the stress resistance of crops can be greatly improved, so that the yield is improved.

The present invention relates to a granular fertilizer for reducing resistance to metalaxyl-M and azoxystrobin and a preparation method thereof, including a pharmaceutical component, a fertilizer component, a binder and a sustained-release agent, wherein the pharmaceutical component is 0.05-0.3%, the binder is 1-10%, the sustained-release agent is 1-10%, and the remainder is a fertilizer component; the pharmaceutical component is measured by weight percentage, including 1-20% metalaxyl-M, 1-20% azoxystrobin, 0.01-0.02mg / kg of dactinomycin, 1-3% of Eupatorium adenophorum extract, 2-40% of cyclodextrin, and the remainder is an inert carrier. The granular fertilizer of the present invention can effectively reduce the usage of metalaxyl-M and azoxystrobin, and effectively reduce the generation of drug resistance; at the same time, a trace amount of dactinomycin can affect the RNA synthesis of plant pathogens, thereby reducing the generation of drug resistance. The above structure can effectively reduce the resistance of potato late blight to metalaxyl-M and azoxystrobin complex, and improve the prevention and control effect.

The invention relates to the field of organic synthesis, and discloses a pyroxasulfone preparation method, which comprises: in the presence of an oxidizing agent, toluene and / or an ether solvent, carrying out an oxidation reaction on a thioether-containing pyroxasulfone intermediate under the action of a catalyst, wherein the thioether-containing pyroxasulfone intermediate has a structure as shown in a formula (1); the catalyst comprises a first catalyst and a second catalyst; the first catalyst is acetic acid and / or sulfuric acid; the second catalyst is a TEMPO (Tetramethylpiperidone) catalyst and / or tetramethylpiperidone. The method for preparing pyroxasulfone does not need to adopt a heavy metal catalyst, is high in product yield and few in three wastes in the preparation process, and has an industrialization prospect. Formula (1)

The invention relates to an agrochemical composition comprising metalaxyl-m, propineb and a film forming agent and formulations thereof, particularly wettable powder (WP) and water dispersible granule (WDG) formulations. The agrochemical formulation 5 increases the rainfastness and has improved bio-efficacy thereby providing solution for wide range of fungal diseases on a variety of crops.

The present invention relates to compositions comprising oxathiapiprolin, metalaxyl-M, at least one component selected from a surfactant, an emulsifier, and a dispersing agent; and a solvent system, including a water-soluble solvent, a first partially water-soluble solvent, and a second partially water-soluble solvent.

The invention relates to the technical field of crop fertilizers, in particular to a preparation method of a pesticide fertilizer for preventing and treating soybean root rot, which comprises the following steps: S1, cultivating and pretreating biological bacteria; s2, preparing and storing a chemical agent; s3, preparing a fertilizer; s4, mixing and granulating the pesticide fertilizer; s5, post-treatment of the pesticide fertilizer; according to the scheme, chemical reagents and biological bacteria are combined, and the chemical reagents fludioxonil and metalaxyl are located on the outer layer of the pesticide fertilizer, can be rapidly dissolved and released after being applied into soil, respectively interfere signal transduction pathways of pathogenic bacteria and inhibit the activity of RNA polymerase, and synergistically reduce the cardinal number of the pathogenic bacteria and relieve the infection pressure; the biological bacteria bacillus subtilis and bacillus amyloliquefaciens are located on the inner layer of the pesticide fertilizer, after colonization in soil, growth of pathogenic bacteria is inhibited by generating extracellular enzyme, competing for nutrient space, secreting antibacterial substances, inducing plant resistance and the like, microecological balance of soybean root systems is maintained for a long time, and due to the multi-layer structural design of the pesticide fertilizer, all the components can play a role in order, so that the pesticide fertilizer has a good application prospect. The control effect on the soybean root rot is improved.

This invention relates to an agricultural chemical composition comprising an active ingredient (A) a compound of formula I and (B) fludioxonil and (C) one of metalaxyl, cymoxanil, or difenoconazole. The invention also relates to the use of said agricultural chemical composition for controlling soil-borne pathogenic fungi and / or pests by seed treatment or soil application. (Formula I).

The invention discloses an early season rice or ratooning rice seedling withering rescue method, and relates to the technical field of agricultural planting, and the method comprises the following steps: S1, adopting a moisturizing measure to supplement water for early season rice and ratooning rice seedling withering and death caused by low temperature sunny conversion or film uncovering during seedling raising; s2, spraying an amino acid water-soluble fertilizer or a natural plant growth regulator on leaf surfaces to increase nutrition; s3, a bactericide metalaxyl hymexazol is applied to leaf surfaces to prevent disease epidemic caused by humidity increase and prevent damping-off. According to the method disclosed by the invention, by adopting water supplementing, nutrition and disease prevention measures, the problems of unbalanced water supply and demand and easy withering and death of seedlings caused by low root activity, poor fertilizer absorption and water absorption capacities after low-temperature influence, and high water loss rate of leaves during sunny and film uncovering are solved, a large number of early rice seedlings are saved, the seedling raising loss is reduced, and the seedling raising cost is reduced. And the method also plays a positive role in guaranteeing the full-year grain harvest.

The invention belongs to the field of pesticide preparations, and particularly relates to a metalaxyl-M, ipconazole and fludioxonil seed treatment suspending agent and application thereof, and the suspending agent comprises the following components: 10-20 g of metalaxyl-M, 40-60 g of ipconazole, 30-40 g of fludioxonil, 50-150 g of a wetting dispersant, 5-20 g of a thickening agent, 0.5-5 g of a film-forming agent, 20-80 g of an antifreeze agent, 0.5-5 g of a preservative, and the balance of deionized water. The seed treatment suspending agent has excellent preparation performance and has an excellent control effect on root rot, and particularly, the formula of the preparation 1 can remarkably improve the suspending performance of the seed treatment suspending agent and improve the field control effect of the agent on the root rot.

The application belongs to the field of pesticide preparation, and particularly relates to a seed treatment suspension containing mefenoxam, ipconazole and thiomethon, and application thereof, which comprises the following components: mefenoxam 1%-3%, ipconazole 1%-5%, thiomethon 1%-3%, dispersing agent 5%-12%, wetting agent 2%-5%, film forming agent 3%-8%, thickening agent 0.15%-0.3%, antifreezing agent 2%-6%, preservative 0.1%-0.5%, defoaming agent 0.3%-1.0%, warning color 3%-12%, and the rest is deionized water. The seed treatment agent can effectively prevent and control the occurrence of rice seedling blight and peanut root rot.

The invention relates to a Lipu taro pest control method and pesticide spraying equipment, and the method comprises the following steps: carrying out primary ploughing on a planting land, and exposing the soil in the sun for 15-20 days; turning over for the second time, and meanwhile, applying fully decomposed farmyard manure and plant ash; a groove is dug in the edge of the planting field, a water storage tank surrounding the planting field is constructed, and water guided into the water storage tank is disinfected; preparing a liquid medicine from metalaxyl or carbendazim according to a set proportion, soaking the seed taros for 15-30 minutes, sterilizing, airing, and sowing; according to the method, dimethomorph, cymoxanil or fluopicolide propamocarb are prepared into liquid medicine according to a set proportion, and the liquid medicine is sprayed to the taros once every 7-10 days through spraying equipment and is continuously sprayed for 2-3 times; hymexazol or metalaxyl mancozeb is selected for root irrigation treatment, and 200-300 ml of hymexazol or metalaxyl mancozeb is metered for each plant. Compared with the prior art, repeated epidemic diseases are prevented, and the epidemic disease control effect is improved.

The present invention relates to a method for rapid detection of chlorfenac, emathine, fenfluramide, pendimethalin and metalaxyl in aquatic products. The method can realize simultaneous detection of five compounds, namely chlorfenac, emathine, fenfluramide, pendimethalin and metalaxyl in aquatic products. The method has simple, rapid and sensitive detection and good purification effect.

The invention relates to a preparation method of pyroxasulfone. The steps of the preparation method of pyroxasulfone are carried out under mild reaction conditions. The reagent adopted by the invention is safe and can be recycled and reused. The method is simple, efficient and environment-friendly, and pyroxasulfone with higher purity and higher yield can be obtained.

The invention discloses a preparation method and application of an antigen for detecting impurities such as etoxazole in vegetables and fruits. The obtained antibody is prepared into an enzyme linked immunosorbent assay kit, and when the enzyme linked immunosorbent assay kit is used for detecting etoxazole contained in vegetables and fruits, the detection limit is 10 [mu] g / L. The detection result is high in accuracy, especially in an etoxazole antibody specificity experiment, obvious specificity to etoxazole is shown, and the detection result is not interfered by drugs such as carbendazim, triazophos, chlorpyrifos, cyfluthrin, metalaxyl, acetamiprid, difenoconazole, procymidone, chlorfenapyr, profenofos and omethoate.

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 relates to the technical field of analytical chemistry and pollutant analysis and detection, in particular to a preparation method and application of a molecularly imprinted polymer material for selectively adsorbing metalaxyl. The preparation method comprises the following steps: mixing template molecules with a pore-foaming agent and a functional monomer, and carrying out prepolymerization reaction to obtain a prepolymerization product; adding a cross-linking agent and an initiator into the prepolymerization product, and carrying out polymerization reaction under a protective atmosphere to obtain a polymerization product; and removing template molecules in a polymerization product to obtain the molecularly imprinted polymer material for selectively adsorbing metalaxyl. The polymer with a three-dimensional net-shaped space structure is generated by utilizing the interaction force generated by the functional monomer and the template molecule under the action of the cross-linking agent. After the template molecules are eluted, holes which can be matched with metalaxyl in space size and can generate interaction force are exposed, so that selective recognition and detection of phenylamide drugs such as metalaxyl are realized.

The present invention belongs to the field of plant antimicrobial agents, specifically relating to a quinine hydrazone derivative, its preparation method, and application. The quinine hydrazone derivative has a general structural formula as shown in Formula I. Antimicrobial experiments have demonstrated that the quinine hydrazone derivative provided by the present invention exhibits significant antibacterial activity against plant pathogenic fungi / oomycetes. Some compounds exhibit antibacterial activity exceeding that of currently marketed antimicrobial agents triadimefon / metalaxyl, and can be used to prepare botanical fungicides.