43 results about "Pyrethroid" patented technology

The invention belongs to the technical field of mosquito larva prevention and control, and particularly relates to a mosquito-killing spreading oil agent and a preparation method and application thereof.The mosquito-killing spreading oil agent is composed of nerolidol, eugenol, methyl oleate, surfactants OP-4 and OP-10 and oleic acid, the mass percent of methyl oleate is 85%, the mass percent of a mixed preparation prepared from the surfactants OP-4 and OP-10 according to the mass ratio of 1: 1 is 5%, and the mass percent of oleic acid is 5%. The mosquito larva killing rate of the film spreading oil agent product within 60 minutes is 100%. Under the same condition, the effect of the insecticidal composition is better than that of pyrethrin, and the insecticidal speed is higher. The film spreading oil agent can reduce the chemical pesticide resistance of deet, and also can achieve the effects of environmental protection and efficient killing of mosquito larvae.

The invention belongs to the field of chemistry and chemical engineering, and particularly relates to a novel method for synthesizing quizalofop-p-ethyl. The quizalofop-p-ethyl racemate reacts with a configuration conversion reagent, so that the quizalofop-p-ethyl racemate is efficiently converted into R-configuration quizalofop-p-ethyl. According to the method, the quizalofop-p-ethyl racemate is converted into quizalofop-p-ethyl with high optical purity under the action of the configuration conversion agent, the use of a high-optical-purity intermediate for synthesizing quizalofop-p-ethyl is avoided, so that the raw material cost can be greatly reduced, and meanwhile, for a quizalofop-p-ethyl product with insufficient optical purity, the yield of the quizalofop-p-ethyl is greatly improved. The optical purity can be improved by the method.

The present invention provides a repellent composition for pyrethroid-resistant bedbugs, the composition comprising 3,4-dimethoxybenzaldehyde as an active ingredient. The invention also provides a method for repelling pyrethroid-resistant bedbugs, the method comprising using the compound or the composition containing same, and uses of the compound or the composition containing same for use in repelling pyrethroid-resistant bedbugs.

The application discloses a CTAB modified magnetic waste fungus chaff biochar adsorbent and a preparation method and application thereof in pyrethroid detection. 3+ , Fe 2+ and the fungus chaff biochar, adding an alkaline reagent to carry out a coprecipitation reaction to obtain a magnetic biochar precursor; S3, pyrolyzing the magnetic biochar precursor to obtain a magnetic biochar; S4, adding the magnetic biochar into a cetyltrimethylammonium bromide solution to carry out ultrasonic treatment, and carrying out magnetic separation to obtain an adsorbent MBC-CTAB. The application establishes a pyrethroid analysis method in water samples by taking the MBC-CTAB as the adsorbent, is favorable for utilization of the waste fungus matrix, and adopts a magnet to separate the sample solution and the MBC-CTAB, replaces complicated separation equipment, and realizes convenient and rapid separation.

The invention belongs to the field of mosquito prevention and killing, and particularly relates to a technology for killing mosquitoes by using a safe and non-toxic alkaline which does not contain pyrethroids and phosphorus. The preparation method comprises the following steps: mixing water, glycol stearate, tetrasodium glutamate diacetate, sodium hydroxide, fatty alcohol-polyoxyethylene ether and polydimethylsiloxane to obtain a mixed aqueous solution, standing, and filtering to obtain a final aqueous solution of the mosquito killer. Strict tests prove that the non-pyrethroid alkaline mosquito killer has a very high killing effect on static and flying mosquitoes by spraying an aqueous solution through a spraying can, is environment-friendly, particularly has no pollution to air when being used in a closed space, and is an ideal non-pyrethroid alkaline mosquito killer. The pyrethroid mosquitocide has a good killing effect on various mosquitoes, and another mosquito killing method except the pyrethroid mosquitocide is provided.

The present invention belongs to the technical field of insecticides and the manufacturing thereof, and in particular relates to a composition having a mosquito-repelling effect and a preparation method therefor. The composition is composed of a polyester fabric or non-woven fabric coated with a finishing liquid and a frame for fixing, wherein the finishing liquid comprises the following raw materials: pyrethroid, a co-solvent, an emulsifier, a thickening and stabilizing agent, an antioxidant, an ultraviolet absorber and water, the thickening and stabilizing agent being a mixture of sodium silicate, sodium carboxymethyl cellulose and polyvinylpyrrolidone. Hung in a well-ventilated environment, the composition of the present invention can, without any additional heat source, power supply or wind source, volatilize an insecticide into the air in a stable and long-lasting manner, thereby achieving a mosquito-repelling effect; moreover, the composition has long-lasting efficacy, providing a persistent mosquito-repelling effect for 60-100 days once opened.

The invention belongs to the field of sanitary insecticides, and discloses a safe and environment-friendly insecticide and a preparation method thereof. The insecticide is prepared from the following components in parts by mass: 0.1 to 3 parts of pyrethroid, 0.1 to 2 parts of a synergist, 0.1 to 10 parts of an alkane solvent, 0.5 to 10 parts of fatty alcohol-polyoxyethylene ether, 0.1 to 5 parts of coconut oil diethanolamide, 0.1 to 1 part of ammonium benzoate, 50 to 70 parts of water, 1 to 10 parts of ethanol, 0.1 to 1 part of a de-foaming agent and 10 to 30 parts of tetrafluoroethane. According to the safe and environment-friendly insecticide, the solvent is mainly water, so that the greasy feeling easily left to passengers during use is eliminated; the production cost of water is low, and meanwhile, the dosage of the propellant is reduced, so that the cost is reduced; water is used as a main solvent, so that the risk of combustion after the product is used is reduced. The preparation method of the safe and environment-friendly insecticide, provided by the invention, is carried out through an oil-water two-phase proportioning process and a filling process, so that a large amount of foam is prevented from being generated in a reaction kettle.

This invention belongs to the field of water treatment technology, specifically relating to a method for the catalytic degradation of pesticide residues using nanoenzymes. The method utilizes a nanoenzyme material composed of a transition metal oxide and a carbon-based composite carrier, with a specific surface area of ​​200-500 m². 2 / g, with at least two of the metal elements iron, copper, and cobalt. Adding 0.1-1 g / L nanozyme and 0.1-5 mmol / L H₂O₂ to water degrades organophosphates, pyrethroids, or carbamate pesticides at pH 4-10 and 20-50℃. Material activity and stability are synergistically enhanced. Transition metal oxides form a chemically bonded interface with the carbon-based carrier, increasing the dispersion of active metals to over 85%. The equipment includes a permanent magnet array for nanozyme recovery and a PID temperature control unit. It achieves a degradation rate exceeding 90% in 60 minutes, retains 92% activity after 10 reuses, discharges no iron sludge, and reduces the cost per ton of water to 0.23 yuan.

The present application relates to PxGSTD2 protein mutants, and the use of wild type and mutants of PxGSTD2 protein in catalyzing the conjugated coupling of pesticides with reduced glutathione (GSH) and improving the pesticide tolerance of non-target organisms. The PxGSTD2 protein and its mutants provided by the present application catalyze the conjugated coupling of various types of pesticides such as oxadiazines, neonicotinoids, pyrethroids and the like with GSH, improve the water solubility of the pesticides, reduce the toxicity of the pesticides, form adducts that are easily excreted out of the body by organisms, and thus significantly enhance the tolerance of non-target organisms to pesticides.

The present invention relates to methods for controlling winged insect pests, comprising exposing the pests to an effective amount of a combination of a β-diketone compound and a least one second pesticide selected from a pyrethroid or a pyrethrin, wherein both the β-diketone compound and the at least one second pesticide is used in a sub-effective amount. It also relates to composition for controlling winged insect pests, comprising a β-diketone compound and at least one second pesticide selected from a pyrethroid or a pyrethrin, wherein both of the β-diketone compound and the at the least one pyrethroid or pyrethrin are included in a sub-effective amount.

The invention discloses a method for detecting pyrethroid by using silicon fluoride quantum dots, belongs to the technical field of fluorescence sensing, and designs fluorinated fluorescent silicon quantum dots (FSiQDs) for rapid and visual detection of pyrethroid. The preparation method comprises the following steps: taking fluorophenylhydrazine and N-(beta-aminoethyl)-gamma-aminopropyltrimethoxysilane (DAMO) as raw materials, and reacting at 175-225 DEG C for 4-9 hours to obtain the fluorophenylhydrazine-gamma-aminopropyltrimethoxysilane. Under excitation of 300-400 nm, the fluoro-functionalized silicon quantum dot fluorescent probe emits blue fluorescence (450 nm), fluorescence quenching occurs after the blue fluorescence reacts with pyrethroid hydrolysate 3-phenoxybenzaldehyde (3-PBD), and the quenching rate reaches 75%. The probe has high selectivity and has no interference on common pesticides, metal ions and biomolecules.

The application discloses a sewage treatment device and method based on membrane filament oxygen supply and electrode synergistic effect of iron redox conversion, the device comprises a reactor, an electrode unit, an oxygen supply membrane unit, an iron base unit, a separation unit and a gas supply system. The oxygen supply membrane and the iron base unit are alternately arranged at a micro distance of 0.5-5 mm to form an iron-oxygen alternating interface; the electrode unit and the oxygen supply membrane unit are separated by the separation unit to form redox subareas. The application utilizes the migration and conversion of iron ions between aerobic and anaerobic zones to construct a non-contact electron transfer path, realizes simultaneous nitrification, denitrification and chemical phosphorus removal; the micro distance iron-oxygen interface can limit the initiation of efficient electro-Fenton reaction to produce hydroxyl radicals and strengthen the degradation of difficult-to-degrade organic matters such as pyrethroid. The application integrates biological denitrification, chemical phosphorus removal, advanced oxidation and biological electricity generation functions, has the advantages of high treatment efficiency, low energy consumption, stable operation and the like, and is especially suitable for treating industrial wastewater containing difficult-to-degrade organic matters.

The invention discloses a method for rapidly detecting pesticide residues by using a colloidal gold technology, and belongs to the technical field of pesticide residue detection.The method comprises the steps that an optimized colloidal gold detection card containing a multi-target antibody and modified by Raman signals is prepared, an agricultural product sample is homogenized, extracted, purified and then subjected to gradient dilution, the detection card is dropwise added for a chromogenic reaction, and the pesticide residues are detected. An image is collected through an annular LED cassette, features are extracted through intelligent image processing, and quantitative analysis is carried out in combination with an improved algorithm model. After stability modification, the detection card can simultaneously detect organophosphorus, pyrethroid and carbamate pesticides, the detection limit is less than or equal to 0.003 mg / kg, the detection limit change is less than or equal to 40% after the detection card is stored at 37 DEG C for one month, and the cross reaction rate is less than or equal to 10%. The whole process is shorter than or equal to 45 minutes, operation is convenient, interference resistance is high, and the method is suitable for on-site rapid quantitative detection and can meet the requirements of grassroots supervision, farmer market self-inspection and the like.

The present invention relates to synergistic and stable pesticidal compositions for controlling pests harmful to crop plants. More specifically, the compositions of the invention comprise at least one active compound selected from pyrethroid compounds, at least one neonicotinoid compound, an emulsifying system, a co-solvent and a solvent. In addition, the invention also provides a method for preparing the synergistic insecticidal composition.

The application provides an anti-termite sealing material of silica gel foam and a preparation method thereof, and belongs to the technical field of polymer sealing materials. The raw material formula of the anti-termite sealing material of silica gel foam is as follows: vinyl silicone oil, reinforcing filler, flame-retardant filler, contact killing agent, bait agent, odor agent, structure control agent, inhibitor, platinum catalyst, foaming agent, hydroxyl silicone oil and hydrogen-containing silicone oil; wherein the contact killing agent is one or more of pyrethroid, neonicotinoid, phenylpyrazole, boric acid, glycine, erythritol and fipronil; the bait agent is one or more of diatomite, talcum powder, capsaicin, dihydrocapsaicin and denatonium benzoate; and the odor agent is one or more of camphor oil, peppermint oil, limonin, limonene, citral, decanal, octanal and nonanal. The anti-termite sealing material of silica gel foam has excellent flame-retardant performance, mechanical performance and anti-termite biting performance, and can well protect the integrity of the sealing material.

The invention discloses a design and detection method of a functional modified silicon quantum dot (SiQDs) fluorescent sensor, belongs to the technical field of environmental pollutant detection, and is characterized in that fluorescent silicon quantum dots containing hydrazino functional groups are prepared by doping phenylhydrazine derivatives when traditional silicon quantum dots are prepared. Meanwhile, fluorescent silicon quantum dots with the emission wavelength of 400-700 nm can be prepared by adding different types of fluorescent dyes. The silicon quantum dot has good luminescence property and stability, and especially has good response capability when being used for detecting a pyrethroid hydrolysate 3-phenoxybenzaldehyde.

The invention relates to a sanitary insecticide, in particular to a bug insecticidal composition containing afluthrin and application of the bug insecticidal composition. The composition comprises an active component A and an active component B in a weight ratio of (1: 20)-(20: 1), wherein the active ingredient A is afluthrin; and the active ingredient B is dinotefuran, acetamiprid, imidacloprid, thiacloprid, thiamethoxam, flupyradifurone or sulfoxaflor. The composition provided by the invention not only solves the problem of resistance of bed bugs to pyrethroid, but also improves the pesticide effect and pesticide effect stability of the composition through the synergistic interaction among the active components, and has the characteristics of high efficiency, low toxicity, environmental friendliness and the like. The binary composition is suitable for preventing and treating bugs in indoor activity places such as families, carriages, hotels, factory dormitories and the like.

This invention discloses a bamboo charcoal fiber cleaning cloth with antibacterial and antiviral functions and its preparation method, belonging to the field of functional fiber materials technology. The cleaning cloth uses bamboo charcoal fiber as the main body, combined with phosphorylated modified mulberry bark fiber. Zinc ions are used to chelate tea polyphenols and pomegranate peel tannins to form active components, which are then encapsulated in sodium alginate microcapsules and loaded into the porous structure of the fibers. Natural pyrethroid extract and β-cyclodextrin are added to achieve mite prevention and odor suppression. The preparation employs a green process of ultrasonic-assisted chelation and high-voltage electrostatic spray microcapsule preparation. This invention solves the problems of easy loss of antibacterial components and poor mechanical properties in traditional cleaning cloths. After 200 washes, the antibacterial rate remains at 95%-99%, and the tensile strength is 13.5-16.0 CN / dtex. It also has the advantages of being all-natural, residue-free, environmentally friendly, and mass-producible, making it suitable for household and medical cleaning applications.

The present invention relates to a novel ternary insecticidal combination comprising: (i) an amount of pyriproxyfen, (ii) an amount of pyrethroid, and (iii) an amount of a nicotinic acetylcholine receptor competitive (nAChR) modulator.

The application discloses a kind of permeability water-based insecticidal aerosol and its preparation method.The weight percentage composition of the insecticidal aerosol includes: pyrethroid 0.5~1.0%, dimethyl sulfoxide 1~2%, emulsifier 0.5~1.0%, penetrating agent 0.4~0.8%, antifreeze 2~3%, essence 0~0.5%, propellant 40~50%, and the rest is deionized water;Wherein the penetrating agent is lipase and orange peel essential oil composition.By dimethyl sulfoxide solubilization makes pyrethroid dissolve and further emulsification to form oil-in-water nano liquid, not only storage stable, but also promote the infiltration and spread of aerosol in the waxy shell of pests;Formulation uses the penetrating agent of lipase and orange peel essential oil composition, can quickly dissolve the waxy of pest surface, break through lipid barrier, realize the adhesion and rapid penetration of pesticide, so as to play the effect of synergistic insecticidal.Not only reduce the pollution to home environment, but also realize the reduction of application and efficiency.

The invention discloses a benzimidazole salt compound with insecticidal activity as well as a preparation method and application thereof, and aims to solve the problem that an existing insecticide cannot give consideration to insecticidal activity and resistance at the same time. The salt compound containing the benzimidazole structure provided by the invention has good insecticidal activity on aedes aegypti, mythimna orientalis and plutella xylostella, has no cross resistance or obvious negative cross resistance on aedes aegypti pyrethroid-resistant strains, and has the control effect on the plutella xylostella equivalent to that of commercial insecticide permethrin sold in the market. A lead compound with application potential and an innovative research and development thought are provided for creating novel resistance treatment pesticides with negative cross resistance characteristics.

The invention relates to the technical field of pesticide residue treatment, in particular to a method for degrading pesticide residues in fruits and vegetables through cooperation of ultrasonic waves and natural enzymes. The method for degrading the pesticide residues in the fruits and the vegetables through the cooperation of the ultrasonic waves and the natural enzymes comprises the step that in the presence of pulse ultrasonic waves, the natural oxidoreductase is used for treating the fruit and vegetable products, wherein the pulse ultrasonic waves and the natural oxidoreductase have a synergistic effect, so that the degradation of the pesticide residues is realized; the frequency of the pulse ultrasonic waves is 20-100 kHz, the power density is 0.1-1.0 W / mL, a pulse working mode is adopted, and the duty ratio is 20-80%. According to the method, the pulse ultrasonic waves with specific parameters are cooperated with the natural oxidoreductase, so that hydrophobic pesticides such as pyrethroids and organophosphorus which are generally residual and are difficult to remove in fruits and vegetables can be efficiently degraded within a short time.

The present invention relates to a new composition containing a pyrethroid compound and a specific antioxidant.

The invention discloses an extraction detection treatment method, and belongs to the technical field of agricultural product safety detection. The method comprises the following steps: homogenizing and extracting a sample by using an extraction solvent, adding a multifunctional magnetic composite material of which the surface is modified with a weak cation exchange group, adjusting the pH value to 6-9, and carrying out vortex adsorption; and separating the material through an external magnetic field, washing, eluting by using an eluent compatible with a liquid chromatography mobile phase, collecting the eluent, and directly injecting the eluent into LC-MS / MS or HPLC for analysis. The magnetic composite material is formed by compounding Fe3O4 nanoparticles, C18 bonded silica gel and a covalent organic framework material, has multiple adsorption mechanisms, and can synchronously enrich various pesticide residues such as organic phosphorus, pyrethroids, carbamates and neonicotinoid. The method is easy and convenient to operate, good in purification effect, stable in recovery rate and suitable for high-throughput rapid screening of pesticide residues in matrixes of various agricultural products such as fruits, vegetables and grains.

The present invention relates to a composition containing a synthetic pyrethroid compound and formula (1). (In formula (1), R1 and R2 may be the same as or different from each other and each represents a C9-C14 alkyl group. )

The invention belongs to the field of agricultural microbial technology and agricultural product safety, and particularly relates to application of a method for preparing a functional biological flora in a targeted biological flora and host original flora coupling mode in rice cultivation. According to the method, bacillus subtilis, bacillus mucilaginosus, brevibacillus laterosporus and host original flora are subjected to coupled symbiotic culture to form specific functional flora, and the specific functional flora is compounded with nutrient carriers such as humic acid potassium fulvate and amino acid chelated trace elements to prepare the targeted biological bacterium water-soluble fertilizer. The microbial agent effectively reduces the bioavailability of heavy metals such as cadmium, lead and arsenic in soil and migration of the heavy metals to rice; meanwhile, the functional flora secretes hydrolase, oxidoreductase and the like, degrades pesticide residues such as organophosphorus and pyrethroid and decomposes the pesticide residues into non-toxic or low-toxicity substances, the method is specially used for solving the problem that heavy metal and pesticide residues in the rice in the filling stage of the rice exceed the standard, and the quality and edible safety of the rice are guaranteed from the source.

A treated mesh sheeting containing an insecticide such that the mesh sheeting acts as a physical and chemical barrier to impede the ingress of insects into a structure, in particular a building structure. The insecticide maybe selected from any one or more of the group comprising pyrethrum, synthetic pyrethroids, organo-chlorines, organo-sulfurs, carbamates, organo-phosphates, formamidines, neonicotinoids, nicotinoids, spinosyns, phenylpyrazoles, pyrroles, pyrazoles, dinitrophenols, pyridazinones, quinazolines, and benzoylureas. The mesh sheeting can be integrally attached to a building structure to impede the ingress of insects, particular termites.

The present invention relates to a composition which contains a synthetic pyrethroid compound and a compound represented by formula (1) (wherein R1 and R2 are the same or different and each represent a C17-C19 alkyl group), wherein the mass ratio of the synthetic pyrethroid compound to the compound represented by formula (1) is 1:0.01 to 1:20.

The invention relates to a sanitary insecticide, in particular to a compound bug killing composition (a perfluthrin and bisamide insecticide) and application thereof. The composition comprises an active component A and an active component B in a weight ratio of (1: 20)-(20: 1), the active ingredient A is afluthrin; and the active ingredient B is any one selected from the group consisting of cyprosulfuron, flubendiamide and polyflubendiamide. The binary composition provided by the invention not only solves the problem of resistance of bed bugs to pyrethroid, but also improves the pesticide effect and pesticide effect stability of the composition through the synergistic interaction among the active components, and has the characteristics of high efficiency, low toxicity, environmental friendliness and the like. The binary composition is suitable for preventing and treating bugs in indoor activity places such as families, carriages, hotels, factory dormitories and the like.

The present invention relates to an amorphous form of deltamethrin, which is a pyrethroid compound useful as a pest control agent. The present invention further relates to a process of preparing the novel amorphous form, and to methods of controlling pests using the novel amorphous form.