20 results about "Pyrethroid insecticide" patented technology

A process for producing three recombinant enzymes capable of hydrolyzing each class of organophosphate, carbamate, and pyrethroid insecticides, as well as a formulation containing these enzymes provides the recombinant plasmid DNA vector, in which the protein secretory system has been modified to enhance the secretion of recombinant protein into the periplasmic space or culture medium. A nucleotide sequence encoding PelB (pectate lyase B) signal sequence for periplasmic localization is deleted and replaced with a nucleotide sequence encoding LamB (maltoporin or phage lambda receptor) signal sequence to enable a more efficient secretory recombinant protein. Three recombinant plasmid DNA vectors for the expression of recombinant proteins that are constructed using the modified plasmid DNA vector described above. The recombinant proteins include a recombinant organophosphate-hydrolyzing enzyme; a recombinant carbamate-hydrolyzing enzyme; and a recombinant pyrethroid-hydrolyzing enzyme.

The present disclosure relates to the field of disinsection, particularly to an insecticidal composition for disinsection of a space, for example the interior space of an aircraft. In one embodiment, the present disclosure relates to an insecticidal composition for disinsection of a space wherein the insect is resistant to an insecticide, such as a pyrethroid resistant mosquito.

The invention relates to a pesticide preparation for preventing and treating aphids on apple trees, which is prepared from neonicotinoid insecticides, pyrethroid insecticides, cosolvents, synergists, nano silicon dioxide dispersing agents, organic silicon surfactants, sodium lignin sulfonate, penetrating agents JFC, xanthan gum and deionized water. A nano silicon dioxide dispersing agent is sprayed on apple leaves to construct a micro-rough surface, the contact area of the liquid medicine and the apple leaves is increased, the sprayed liquid medicine is prevented from rapidly sliding off from the apple leaves, the adhesion of the liquid medicine to the apple leaves is enhanced, meanwhile, an organic silicon surfactant can reduce the surface tension value of the liquid medicine, and the effect of preventing the liquid medicine from falling off is achieved. The problem that the aphid control effect is affected due to the poor attachment effect after the traditional pesticide is sprayed is avoided as far as possible.

The invention provides a pesticide composition containing a pyrethroid compound, which consists of a compound with a structural formula (I) and a second effective component, the second effective component is bifenthrin, beta-cyhalothrin, fenpropathrin, beta-cyhalothrin, beta-cyhalothrin, beta-cyhalothrin, cypermethrin, cyfluthrin, deltamethrin, ethofenprox, fenvalerate or cis-cypermethrin, and the weight ratio of the bifenthrin, the beta-cyhalothrin, the fenpropathrin, the fenvalerate and the cis-cypermethrin is (1-50): (1-50). The invention also provides application of the pesticide composition in prevention and control of agricultural and forestry pests, especially phyllotreta striolata, ostrinia nubilalis or tetranychus cinnabarinus. The invention verifies that a remarkable synergistic effect can be obtained by compounding the flufenoxanil and the pyrethroid insecticide in a proper proportion, the effects of improving the control effect, reducing the dosage and expanding the insecticidal spectrum are realized, and the composition has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle and tetranychid mites, and has a good control effect on the target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis. (I).

The invention discloses a pH / esterase dual-response nano pesticide delivery system as well as a preparation method and application thereof. The nano pesticide delivery system comprises a carboxymethyl chitosan-polycaprolactone graft copolymer (CMCS-g-PCL) carrier, and a pyrethroid pesticide which is loaded on the carrier through physical embedding. The nano pesticide delivery system has good storage stability and foliar affinity, and the photolysis resistance and enzymolysis resistance of the loaded pesticide are remarkably improved. After application, the system shows excellent environmental responsiveness, keeps stable deposition under an acidic condition, and accurately triggers pesticide release in alkaline intestinal tracts of lepidoptera pests and in a carboxylesterase environment. The method is suitable for precise prevention and control of lepidoptera pests, and has the effects of pesticide reduction and environmental risk regulation and control.

A slow-release insect repellent sheet is provided, which allows for easy adjustment of the release period of pyrethroid insecticides. The slow-release insect repellent sheet is a sheet containing a liquid component, wherein a filler is dispersed in a thermoplastic resin and a liquid component is loaded in the voids formed around the filler, wherein the loaded liquid component contains a pyrethroid insecticide as the active ingredient and contains a surfactant and / or liquid paraffin.

The invention relates to an insecticide composition containing afidopyropen and pyrethroid as well as a preparation method and application thereof, and relates to the field of pesticides, the insecticide composition is prepared from the following raw materials in percentage by weight: 1-30% of afidopyropen, 1-50% of pyrethroid insecticide, 2-10% of wax dissolving agent, 1-6% of penetration enhancer, 0.1-2% of conduction synergist, 6-15% of oil phase solvent and the balance of water. 5%-12% of a polymer wall material, 3%-8% of a dispersant, 3%-8% of an emulsifier and other dosage form auxiliary materials; the wax dissolving agent is one or more of camellia seed tea saponin and soapnut saponin. On the basis of a'wax dissolving-conduction double synergistic mechanism surfactant system ', and in combination with afidopyropen and pyrethroid insecticides, drugs in the pesticide preparation can better permeate into aphid bodies, so that the pesticide effect is improved. Meanwhile, as the pesticide preparation is harmless to non-target organisms, the pesticide preparation is more environment-friendly, and plays a positive role in protecting the environment and an ecological system.

The present invention relates to topical pharmaceutical compositions comprising a corticosteroid and an insecticide selected from pyrethrin or a synthetic pyrethroid insecticide. Methods for their use in the treatment of allergic dermatitis, particularly hypersensitivity to insect bites, in animals using the compositions of the invention are also described.

The application discloses a bacillus strain JZ-5 and application, and belongs to the technical field of microorganisms, the strain is separated from the plough layer soil, has been preserved in China typical culture preservation center, and the preservation number is CCTCC NO: M 2025651.The bacillus strain JZ-5 not only has the characteristics of high efficiency, broad spectrum and rapid degradation of pyrethroid insecticides, but also has strong salt tolerance, and is suitable for the remediation of saline-alkali soil and other salinization soil; and the strain can produce indole-3-acetic acid at high yield, can effectively promote the root system development and plant growth of crops, realizes the triple functions of degradation detoxification, salt tolerance and stress resistance and growth promotion and yield increase.The production process of the bacterial agent produced based on the strain is simple, low in cost, convenient to use and high in environmental safety, is suitable for large-area popularization and application, and has important significance for guaranteeing the quality and safety of agricultural products, repairing contaminated soil, improving saline-alkali soil, protecting ecological environment and promoting agricultural green development.

The invention relates to a process for the preparation of synthetic pyrethroid insecticides. The process involves coupling of carboxylic acid (IV) with an alcohol (V) in the presence of a catalyst. wherein R1, R2, R3 and Ar are defined in the specification.

The present invention discloses a compound synergistic insecticide composition and its application. The composition contains two active components, A and B, with the mass ratio of components A to B being (1-5):(5-20). Active component A is selected from compounds represented by formulas a, b, and c; component B is selected from organophosphorus insecticides, pyrethroid insecticides, and neonicotinoid insecticides. The compound synergistic insecticide composition of the present invention has excellent synergistic effects, a simple preparation process, and low cost. It can be used to reduce the amount of chemical insecticides and increase their efficacy, as well as for the green control of aphids. #imgabs0#

The present application relates to a composition containing pyrethroid insecticide and its application. The composition has synergistic effect of cycloxaprid and pyrethroid insecticide, which can improve the effect of pest control, reduce the amount of pesticide application, reduce the frequency of use, and reduce the cost of use.

The present invention relates to compositions containing a biologically effective amount of a compound I and a pyrethroid insecticide, and methods for their use in controlling pests in agronomic and non-agronomic environments. The compound I and a pyrethroid insecticide have a synergistic effect, so that the pest control effect can be improved, the pesticide application amount is reduced, the use frequency is reduced, and the use cost is reduced.

The invention relates to a magnetic solid-phase extraction method for pyrethroid insecticides in fruits and vegetables based on a Fe3O4-coated CS-coated AA material. The magnetic solid-phase extraction method comprises the following steps: S1, synthesizing a Fe3O4-coated CS-coated AA magnetic adsorbent; s2, preparing a fruit and vegetable sample; s3, magnetic solid phase extraction; s4, determining by using a gas chromatography-mass spectrometry method; fe3O4 nano magnetic particles are embedded in chitosan gel, then acrylic acid is grafted on chitosan molecules for modification, the Fe3O4 CS AA magnetic adsorbent is prepared through glutaraldehyde curing and crosslinking, and based on the fact that the chitosan molecules contain a large number of-OH and-NH2 and-COOH active groups in acrylic acid, the Fe3O4 CS AA magnetic adsorbent and pyrethroid pesticide compounds form intermolecular hydrogen-bond interaction, so that the magnetic adsorbent can be used for adsorbing the pyrethroid pesticide compounds. Therefore, target component extraction is realized, and the method for determining deltamethrin and cyhalothrin pesticide residues in fruits and vegetables by combining magnetic solid-phase extraction with gas chromatography-mass spectrometry is established.

The application relates to the technical field of electric heating mosquito-repellent liquid, and particularly discloses a fresh and fragrant incense type long-acting electric heating mosquito-repellent liquid and a preparation method thereof. The preparation raw materials of the fresh and fragrant incense type long-acting electric heating mosquito-repellent liquid include pyrethroid insecticides 0.68-0.86 parts, an incense compound 2-4.5 parts, stabilizers 0.6-0.8 parts, soothing aids 0.05-0.1 parts and solvents 92-93.84 parts; the preparation raw materials of the incense compound include plant essential oils and a compatible agent, the mass ratio of the plant essential oils to the compatible agent is (1.5-3.0):(0.5-1.5), and the compatible agent includes polyglyceryl-6 caprylate and alkyl polyglycoside with a mass ratio of 1:(0.3-0.5). The application can effectively improve the compatibility of incense components and insecticidal components in the mosquito-repellent liquid, and realizes the dual functions of efficient mosquito repellence and fresh incense.

The application discloses a silkworm molecular breeding method with both anti-BmNPV and pyrethroid pesticide, which is efficient and practical. First, the silkworm variety of Su Hao and Zhong Ye is endowed with the performance of resisting pyrethroid pesticides through directional introduction and screening technology, and the related molecular markers are all dominant homozygous types. Secondly, the strategy of combining genetic breeding and molecular assisted breeding is adopted to introduce the anti-BmNPV characteristics of the silkworm AN variety, and the anti-pyrethroid pesticide molecular marker is stably controlled to be a dominant homozygous type. Finally, through strict screening and cultivation, a silkworm variety with significant economic advantages and double resistance to pyrethroid insecticides and BmNPV is obtained.

This invention discloses a method for treating wastewater from the production of pyrethroid insecticide, comprising: (1) adjusting the pH to 11-12 and adding sodium thiosulfate solution to react and obtain a reaction solution; (2) adding sulfur to the reaction solution and refluxing the reaction at 100-102°C for a set time to obtain a synthetic solution; (3) evaporating and concentrating the synthetic solution to obtain a concentrated solution, adding activated carbon and heating it to perform solid-liquid separation to obtain a filtrate; (4) cooling and crystallizing the filtrate, separating the crystals to obtain sodium thiosulfate pentahydrate. The wastewater treatment process for pyrethroid insecticide of this invention can directly produce high-value-added, high-quality sodium thiosulfate products, realizing the recycling of materials. No polluting gases are generated during the treatment process, the process is simple, and the treatment cost is low.

The invention belongs to the technical field of raw material medicine synthesis, and relates to a process method for preparing a pyrethroid intermediate with a single configuration. Specifically, the invention relates to the preparation of the important intermediate (R)-2-(4-chlorphenyl)-3-methyl ethyl butyrate of the pyrethroid Valerate and Esfenvalerate by catalyzing 2-(4-chlorphenyl)-3-methyl butyl-2-olefine acid ethyl ester with a specially-made asymmetric hydrogenation catalyst. The preparation method comprises the following steps: preparing the important intermediate (R)-2-(4-chlorphenyl)-3-methyl ethyl butyrate of the pyrethroid Valerate and Esfenvalerate; according to the method, the conversion rate of the reaction raw materials is up to 99%, and the ee value of the obtained target product is up to 99%. According to the efficient and high-selectivity process method created by the invention, the synthesis efficiency of the pyrethroid is improved, the production environment is optimized, and the production cost is reduced.

The present inventions concerns use of isocycloseram to control mosquitoes including mosquito vectors of pathogenic disease and mosquitoes having developed insecticide resistance, such as pyrethroid insecticide resistance.

The invention discloses Achromobacter Pneumoniae SX5 and an application thereof. The Achromobacter Pneumobacter SX5 is classified and named as Achromobacter Pneumobacter, and is preserved in the China General Microbiological Culture Collection Center on June 6, 2025, the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.34789. The Achromobacter Pneumobacter SX5 is named as Achromobacter Pneumobacter Pneumobacter Pneumobacter Pneumobacter Pneumobacter Pneumobacter Pneumobacter Pneumobacter. According to the invention, the achromobacter lung SX5 is found to have degradation activity on the bifenthrin for the first time, and can degrade the bifenthrin with the initial concentration of 25-600mg / L; under the conditions that the temperature is 27 DEG C, the pH value is 5 and the inoculum size is 4%, degradation is carried out for 5 days, and the degradation rate of 50 mg / L bifenthrin can reach 80.14%. The achromobacter lung SX5 has a wide temperature and pH application range, and the half-life period of the achromobacter lung SX5 is from 2.203 d to 3.648 d. In addition, the Achromobacter Pneumoniae SX5 has a certain broad spectrum of substrates, and can be used for degrading a plurality of other pyrethroid insecticides such as beta-cypermethrin, beta-cyhalothrin, deltamethrin and the like.