31 results about "Chlorothalonil" patented technology

This invention provides a method for storing mango seeds, belonging to the field of seed preservation technology. The method involves cutting off mango fruits with embryos, along with their pedicels and branches, 77-84 days after fruit set. A mixture of pyraclostrobin, lambda-cyhalothrin, and chlorothalonil is sprayed on the fruit, pedicels, and branches. After drying, styrene-butadiene latex is applied to the pedicels and branches. Once the latex dries, a mixture of guanidine-copper acetate and benzoyl-pyraclostrobin is sprayed on the fruit, pedicels, and branches again. After drying, the mango fruits with petioles and branches are placed in a sealed box and stored at 10-14°C. The mango variety used is the Golden Phoenix mango. This invention increases the storage period of Golden Phoenix mango seeds from 1.5 months to 5 months, which is of great significance for the genomics and cell biology research of Golden Phoenix mangoes.

The application belongs to the technical field of microorganisms and particularly relates to a kind of Aspergillus ustus and application thereof.The Aspergillus ustus is preserved in China General Microbiological Culture Collection Center, and the preservation number is CGMCC No.40820.The Aspergillus ustus can be separated to obtain sesquiterpenes shown in formula I and formula II, and the sesquiterpenes have good bacteriostatic activity on Physarum polycephalum, and the bacteriostatic rates are 79.45% and 76.71% respectively at a final concentration of 100 μg / mL, which is equivalent to the control agent of bercyn in inhibiting mycelial growth.

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 present invention relates to a method for controlling soybean rust, comprising treating the plants or the soil with a fungicidally effective amount of a composition comprising: as active component 1) the compound (I) methyl (2Z)-3-methoxy-2-[(4-methylbiphenyl-3-yl)oxy]prop-2- enoate) and as active component 2) compound (II) which is selected from the group consisting of as active component 2) compound (II) which is selected from the group consisting of man- cozeb (II-1), metiram (II-2), chlorothalonil (II-3) and the agriculturally acceptable salts thereof.

This invention discloses a combined microbial agent and its application in combating clubroot disease, belonging to the field of microbial pesticide technology. By weight percentage, the combined microbial agent comprises 20%-30% Bacillus subtilis, 15%-25% Bacillus amyloliquefaciens, 10%-25% Lactobacillus fermentum, 10%-20% Isaac's yeast of Orientia, and 10%-20% Actinobacillus sieboldii. There is a synergistic effect among the strains, resulting in a significant effect on the control of clubroot disease, superior to conventional pesticides such as chlorothalonil. Using the combined microbial agent provided by this invention to control clubroot disease can reduce the amount of chemical pesticides used, exhibiting environmental friendliness and high efficiency. Furthermore, field trials have shown that treatment with the combined microbial agent of this invention reduces the incidence of clubroot disease in cruciferous crops while significantly increasing crop yield, resulting in economic benefits. The combined microbial agent of this invention is suitable for practical production and easy to promote and apply.

The present application relates to the technical field of B01D7 / 02, in particular to a high-efficiency production process and production device of chlorothalonil transformation crystal, at least comprising the following steps: (1) gas-phase chlorothalonil product is transferred to the transformation kettle through the gas-phase chlorothalonil feeding port, and the alpha crystal form chlorothalonil seed is transported into the transformation kettle from the nitrogen gas feeding port through the nitrogen gas feeding pipe by the gas blowing method, the gas-phase chlorothalonil product contacts with the alpha crystal form chlorothalonil seed to form a transformation crystal mixing area for transformation crystal; (2) after the transformation crystal ends, the alpha-type chlorothalonil product falls to the bottom of the transformation kettle, the alpha-type chlorothalonil product is continuously extracted from the alpha-type chlorothalonil product discharge port through the screw discharge machine, and the tail gas generated in the reaction process is transferred to the spray tower for spray treatment through the tail gas outlet, the gas-solid transformation crystal is realized based on the optimized process by using a specific device, is directly converted into alpha type, the alpha-type chlorothalonil continuous rapid and stable transformation is realized, and the production transformation efficiency is greatly improved.

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 invention discloses a synergistic insecticidal composition which comprises an effective component A and an effective component B. The effective component A is imidaclothiz, and the effective component B is ethiprole. The weight ratio of the effective component A to the effective component B in the insecticidal composition is 3: 1 and 28: 1, and the effective components of the insecticidal composition are matched according to the ratio to achieve a certain synergistic effect, so that the use amount of the pesticide active components can be reduced, and the generation of drug resistance of a controlled object is delayed.

This invention belongs to the field of pesticide fungicides and discloses a fungicidal composition. The active ingredients of the fungicidal composition include active ingredient A, active ingredient B, and active ingredient C. Active ingredient A is fluopyram, active ingredient B is prothioconazole, and active ingredient C is chlorothalonil. The mass ratio of active ingredient A, active ingredient B, and active ingredient C is (1-20):(1-20):(10-100). The fungicidal composition of this invention can be used to control plant diseases caused by Basidiomycetes or Mitotic spore-forming fungi, and has good control effects. It features a broad fungicidal spectrum, low dosage, and significant synergistic effect.

The present application relates to sewage treatment technical field, provide a kind of degradation of chlorothalonil in water method.The present application provides a kind of method for treating chlorothalonil in water using papermaking by-product sodium lignosulfonate: sodium lignosulfonate is mixed with chlorothalonil aqueous solution, the content of sodium lignosulfonate is 1.00~100.49mg / L, under high-pressure mercury lamp, the photolysis half-life of chlorothalonil is 156.82~3.82min, compared with control group (chlorothalonil aqueous solution without sodium lignosulfonate) degradation rate increases 1.09~85.01 times, and no toxic metabolite 4-OH chlorothalonil is generated.

This invention relates to the field of pesticides, specifically to a cyprodinil-chlorfluazol inhibitory and fungicidal composition. It addresses the problems of limited fungicidal activity in existing fungicides and the tendency for long-term single-use application to lead to pathogen resistance and reduced control efficacy. This fungicidal composition utilizes the different mechanisms of action of cyprodinil or cyprodinil acetate and chlorfluazol to exert its fungicidal effect. The combination of the two exhibits a significant synergistic effect, improving the control efficacy against pathogens and reducing the risk of pathogen resistance. The composition of this invention has good systemic and penetrating properties, maintaining efficacy within the crop for a long time, extending the residual effect, and reducing the frequency of application and costs.

The invention relates to a novel acridinyl-containing tetrahydronaphthalene spiro isoxazoline compound, a preparation method thereof and application of the novel acridinyl-containing tetrahydronaphthalene spiro isoxazoline compound as an antifungal drug. The novel acridinyl-containing tetrahydronaphthalene spiroisoxazoline compound has an inhibition effect on parasite sphaerospora, botrytis cinerea, rhizoctonia solani, fusarium graminearum and candida albicans in the antifungal activity of the novel acridinyl-containing tetrahydronaphthalene spiroisoxazoline compound. An antifungal biological activity result shows that the compound shows remarkable antifungal activity, has comprehensive antifungal characteristics and is determined as a broad-spectrum antifungal candidate, the EC50 value of the compound to parasitic powdery spores is superior to that of a positive control drug chlorothalonil, and the compound shows about 12 times and 25 times of titer advantages compared with famoxadone and carbendazim respectively. The spiro structure and multiple active groups of the compound can significantly improve the antifungal activity of the compound, and in addition, the compound has protection and treatment effects on powdery parasitic spore infection in corn, which shows that the compound has agricultural application potential.

The invention relates to the technical field of pesticide bactericides, and discloses a composition containing meconazole and phenazino-1-carboxylic acid, and the composition is obtained by reasonably compounding meconazole and phenazino-1-carboxylic acid. The composition disclosed by the invention is applied to crops, the applied composition not only can be fully absorbed by the crops, but also can be used for preventing and controlling diseases of the crops through two action mechanisms at the same time, so that the composition has good synergistic and persistent effects, and the prevention and control effect of the composition is higher than that of a single substance; according to the composition, the dosage of chemical pesticides can be remarkably reduced, the residual quantity of the chemical pesticides on crops is reduced, the pollution to the environment is reduced, the generation of drug resistance of diseases can be effectively avoided, the action duration of the composition is prolonged, and the composition has a good prevention and treatment effect. The compound can be widely applied to the field of agricultural bactericides and has a wide application value.

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 invention provides a microecological preparation for preventing and treating oat diseases and insect pests and promoting growth as well as a preparation method and application of the microecological preparation, and belongs to the technical field of plant disease prevention and treatment. The microecological preparation comprises a probiotic fermentation composition and auxiliary materials, wherein the probiotic components in the probiotic fermentation composition comprise bacillus velezensis, pseudomonas aeruginosa, coxakella cocori and bacillus atrophaeus. According to the invention, four strains which can promote growth and have an antagonistic effect on plant disease bacteria are separated and screened from 500 high-quality oats. After being compounded into a microecological preparation for seed dressing, the microecological preparation can effectively inhibit infection of pathogenic bacteria on the surfaces of seeds, the growth state of the microecological preparation is indifferent from that of normally planted oat, the morbidity of smut, powdery mildew and leaf spot caused by endohilum helminthosporium can be effectively reduced, and the cure rate of the microecological preparation is superior to that of sterilization.

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 invention belongs to the technical field of pesticide sterilization, and discloses a chlorothalonil-containing bactericidal composition and application thereof, the bactericidal composition comprises an active component A and an active component B, the active component A is Cyclobutrifluram, the active component B is chlorothalonil, and the mass ratio of the active component A to the active component B is 1: 56-56: 1. The bactericidal composition disclosed by the invention has a relatively good control effect on plant diseases such as gibberellic disease and fusarium wilt, can slow down the generation and development of drug resistance of pathogenic bacteria, reduces the use dosage of pesticides, and has an obvious yield keeping effect.

The application belongs to the technical field of plant propagation, and provides an open type tissue culture method of bamboo reed, which comprises the following steps: step S1, explant treatment; step S2, growth aid solution preparation and use step; S3, explant disinfection step; S4, culture medium preparation step; S5, inoculation step; and S6, culture. The method is characterized in that 0.1 g / L indole butyric acid is used, the explant is soaked for 12-36 h before disinfection, and the mixed bacteriostatic agent of 0.075 g / L of chlorothalonil and 0.075 g / L of streptomycin is added to the culture medium, so that the cost of bamboo reed propagation is significantly reduced, the advantages of tissue culture are retained, the seedlings are uniform, the propagation coefficient is large, the propagation speed is fast, and a new idea is provided for the open type tissue culture of bamboo reed.

The utility model discloses a low-content chlorothalonil refining device which comprises a dissolving kettle, a washing kettle, a decoloring kettle, a crystallization kettle and a reflux toluene cutting kettle which are communicated through pipelines, a first filter is arranged between the dissolving kettle and the washing kettle, a second filter is arranged between the decoloration kettle and the crystallization kettle, a third filter is arranged between the crystallization kettle and the reflux toluene cutting kettle, the reflux toluene cutting kettle is communicated with a separation assembly through a pipeline, and the separation assembly is used for separating products. According to the utility model, the dissolving kettle, the washing kettle, the decoloring kettle, the crystallization kettle and the reflux toluene cutting kettle are arranged to sequentially complete the processes of dissolving, filtering, washing layering, decoloring and cooling crystallization, so that the post-captured material generated in the start-up stage is refined and purified, the product yield is improved, and meanwhile, the solid waste amount and the production cost can be effectively reduced.

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 invention relates to the technical field of pesticide residue detection, in particular to a method and a system for separating and determining the residual quantity of meconazole enantiomers in rice by adopting ultra-performance convergence chromatography. By optimizing sample extraction and solid-phase extraction purification processes and combining ultra-performance convergence chromatography chiral separation conditions with supercritical carbon dioxide as a main mobile phase, rapid and effective separation of the two enantiomers and accurate and sensitive quantification under PDA detection are realized, so that matrix interference is reduced, analysis efficiency and result reliability are improved, and the method is suitable for industrial production. The application requirements of monitoring and supervising the residues of the meconazole enantiomers in the rice are met.

The invention discloses a synthesis method of a meconazole intermediate 4-(4-chlorophenoxy)-1-(1-methyl vinyl)-2-(trifluoromethyl) benzene, which comprises the following steps of: performing defluorination etherification reaction on 2-bromine-5-fluorobenzotrifluoride (I) serving as a raw material and 4-chlorophenol (II) in the presence of an alkaline reagent to obtain 1-bromine-4-(4-chlorophenoxy)-2-(trifluoromethyl) benzene (III), and reacting the 1-bromine-4-(4-chlorophenoxy)-2-(trifluoromethyl) benzene (III) with 4-chlorophenol (II) to obtain the meconazole intermediate 4-(4-chlorophenoxy)-1-(1-methylvinyl)-2-(trifluoromethyl) benzene (III). The preparation method comprises the following steps: reacting a compound (III) with a Grignard exchange reagent (IV) to prepare an aryl Grignard reagent, and reacting with isopropenyl acetate (V) under the action of an iron catalyst to obtain a meconazole intermediate 4-(4-chlorophenoxy)-1-(1-methylvinyl)-2-(trifluoromethyl) benzene (VI); the method has the advantages of simple reaction system, cheap and easily available raw materials, high raw material conversion rate and high product selectivity, is suitable for industrial production, and has a good application prospect; .

The invention relates to the technical field of pesticide bactericides, and discloses a composition containing meconazole and validamycin and application of the composition, and the composition is mainly formed by reasonably compounding an active component A meconazole and an active component B validamycin, the composition is applied to crops, the composition is absorbed by the crops after application, disease control can be carried out on the crops through two action mechanisms at the same time, the composition has good synergistic and persistent effects, the control effect is higher than that of a single agent, the dosage of chemical pesticides can be remarkably reduced, the residual quantity of the pesticides on the crops is reduced, and environmental pollution is relieved; moreover, generation of drug resistance of diseases can be effectively avoided, the action duration of the composition is prolonged, and the composition has a good prevention and treatment effect.

The invention discloses a method for rapidly synthesizing a key intermediate 2-chloro-5-methylthiazole of thiamethoxam, clothianidin and imidaclothiz based on a continuous flow method. According to the method, 2-amino-5-methylthiazole is taken as a raw material, and efficient synthesis of 2-chloro-5-methylthiazole is realized through a microreactor and a tubular reactor in the presence of sodium nitrite and a hydrochloric acid aqueous solution under mild conditions. According to the method, a continuous flow strategy is adopted to overcome the defects of potential production safety hazards, reduced reaction efficiency and the like caused by strong heat release in the diazonium salt generation process, expensive reagents are not needed, solvents and energy are saved, and a feasible solution is provided for industrial production of 2-chloro-5-methylthiazole.

The application discloses a method for determining prothioconazole and chlorothalonil in plant source food, which comprises the following steps: S1, preparing a sample to be measured, diluting or dissolving the sample with water, high-speed centrifugation, and taking supernatant; S2, purifying the sample to be measured, using a mixed cation exchange solid phase extraction purification column, washing the column with water, vacuum drying, and then eluting with methanol; S3, derivative of the sample to be measured, adding O-bistrimethylsilyl trifluoroacetamide + trimethylchlorosilane; S4, purification of the derivative, adding saturated sodium chloride solution, and taking the lower dichloromethane layer; S5, detecting the sample to be measured, feeding the derivative sample solution and standard working solution into a gas chromatography-tandem mass spectrometer, taking the concentration of the pesticide derivative in the standard solution as the abscissa, the peak area of the quantitative ion pair as the ordinate, drawing a working curve, and quantifying by an external standard method. The application can check the plant source food, improve the safety of the plant source food circulating on the market, and guarantee food safety standards.

The invention discloses a lily genetic transformation method which comprises the following steps: preparing an infection solution by using an agrobacterium rhizogenes C58C1 strain, and infecting lily scales by using the infection solution. The infection is vacuum negative pressure infection. The infection further comprises secondary infection, namely dipping thalli of agrobacterium rhizogenes C58C1 from the wound of the base part of the scale subjected to vacuum negative pressure infection. Before infection, lily scales are pretreated with a chlorothalonil solution. According to the invention, starting agrobacterium tumefaciens C58C1 is screened as an efficient core strain for genetic transformation of lilium brownii, and the transformation efficiency of single infection of Lanzhou lilium brownii is obviously higher than that of common strains. A secondary infection system established based on C58C1 greatly improves the conversion efficiency of Shuttle and Siberia lilium, and effectively reduces the difference between varieties. Through chlorothalonil treatment, the pollution rate is reduced, and the strain activity and transformation stability are not affected.

The invention discloses a hymexazol degrading gene cluster, an expression vector of the hymexazol degrading gene cluster, hymexazol degrading bacteria and application of the hymexazol degrading bacteria. The gene cluster comprises an orf2179 gene with a DNA (Deoxyribose Nucleic Acid) sequence as shown in SEQ ID No. 1, an orf2181 gene with a DNA sequence as shown in SEQ ID No. 3 and an orf2182 gene with a DNA sequence as shown in SEQ ID No. 4. An expression vector and recombinant bacteria containing the gene cluster are further constructed, the degradation function of the gene cluster on the hymexazol is verified, and the result shows that the orf2180 gene does not participate in the degradation effect, but the orf2179 gene, the orf2181 gene and the orf2182 gene participate in the preliminary degradation of the hymexazol, and the results are indispensable. The Cupriavidus recombinant bacterium for expressing the orf2174-2183 gene cluster, which is constructed in the invention, has better hymexazol degradation performance and can be used for efficiently repairing a hymexazol polluted environment.

The invention provides a bactericidal composition containing meconazole and validamycin as well as a preparation method and application of the bactericidal composition. The bactericidal composition comprises the following components in percentage by mass: 55-65% of an active component, 5-8% of a dispersing agent, 3-5% of a wetting agent, 4-6% of a disintegrating agent, 2-3% of a binder and the balance of filler, the active ingredients are meconazole and validamycin, and the mass ratio of the meconazole to the validamycin is (1: 1) to (1: 8). Field results show that the pesticide effect of the bactericidal composition is obviously superior to that of a single agent, and '1 + 1gt: 2' is realized.

The present application belongs to the technical field of pesticide detection, and particularly relates to a multi-in-one pesticide residue quantitative detection test paper and a detection method. The test paper is provided with gold nanoparticle labeled antibodies of at least two kinds of pesticides on a colloidal gold combination pad; a chromatography membrane is provided with a quality control line and at least two detection lines, each detection line is coated with an antigen of one kind of pesticide; the pesticides are selected from chlorpyrifos, phorate, dimethoate, acetamiprid, carbendazim, procymidone, fenpropathrin, carbofuran, isoprocarb, chlorothalonil, chlorfenapyr, parathion, tetramethylenedisulfide, triadimefon, isocarbophos or parathion. Through optimization of the pesticide types and preparation methods of the antigens and antibodies, the present application overcomes the problem of mutual interference of detection targets when multiple pesticides are simultaneously detected, has good specificity, high sensitivity, can accurately quantify, can simultaneously detect multiple components, and has simple pretreatment, and thus has good application prospect.

The invention relates to the technical field of pesticide slow release, in particular to a bromothalonil-containing bactericidal slow-release preparation and a preparation method thereof. The preparation is composed of a double-shell core-shell slow-release microcapsule suspension, a dispersion stable component and a water-phase continuous phase, the microcapsule takes bromothalonil crystal particles as a core, dopamine hydrochloride is subjected to oxidative polymerization in an alkaline water phase and is deposited to form a polydopamine inner shell, a chitosan-sodium tripolyphosphate ionic crosslinking outer shell is constructed on the surface of the polydopamine inner shell, and the dispersion stable component and the water-phase continuous phase are subjected to cross-linking to form the double-shell core-shell slow-release microcapsule. Chitosan is combined with a polydopamine interface through hydrogen bonds and electrostatic interaction and is cross-linked and cured with sodium tripolyphosphate; the synergistic double-shell structure enables the system to maintain low viscosity under a high-solid-content processing condition and maintain integrity under pumping, spraying and high shearing, the encapsulation efficiency of 80-99% is achieved, and low-initial-stage burst release and long-acting slow release are both considered, so that the coupling contradiction among rheology controllability, interface stability and mechanical strength of a slow-release pesticide suspension system is relieved; the bactericidal composition is suitable for agricultural scenes requiring persistent sterilization.