467 results about "Cyhalothrin" patented technology

The invention relates to a pesticide composition containing indoxacarb, mainly used in crops disinfestation, which comprises emulsifiable concentrate, wettable powder and suspension agent. The active ingredients of the pesticide composition are indoxacarb and active ingredient B which is any one or composition of more than one with any proportion of Methylamino abamectin benzoate, hexaflumuron, nitenpyram, avermectin, fipronil, chlorfenapyr, acetamiprid, profenofos, phoxim, high-efficiency cypermethrin, cyhalothrin, triazophos and chlorpyrifos. The pesticide composition has the advantages of enlarging the application range, having strong contact toxicity and stomach poisoning action, having low mammalian toxicity and better compatibility of environment, being effective to the pest of every growth period, increasing the effect of every component of the composition significantly, reducing the production cost and agricultural cost of the pesticide, having wide insecticidal spectrum and high efficiency, delaying the occurrence of the drug resistance of the pests, prolonging the service life of the pesticide agent, enabling the high yield and high quality of the crops, having strong activity, long persistent period and stable drug efficacy to the pests.

The invention relates to a pesticide composition, in particular to an insecticide composition. The composition comprises chlorantraniliprole with synergistic effective dose, abamectin or emamectin benzoate, and one of cyhalothrin, dursban, diazinon, acetamiprid, cypermethrin, alpha cypermethrin, thiamethoxam, thiacloprid, fenvalerate, propargite, diafenthiuron, benfuracarb, azocyclotin, buprofezin, ethofenprox, phonamiphos, fipronil, flufenoxuron, monosultap, dimehypo, imidacloprid, flufenoxuron, chlorfluazuron, pleocidin and tebufenozide, wherein the mass percentage of the three compositions is that: the chlorantraniliprole is 1 to 35 percent, the abamectin or the emamectin benzoate is 1 to 10 percent, and any one of the insecticides is 1 to 50 percent. The invention discloses a process for processing the compositions and application of the compositions in preparing insecticides for controlling agricultural, forestry and gardening insect pests.

The re-compounded pesticide composition includes fipronil in the weight ratio to other component of 0.02-50, and at least one of the following pesticides: lambda-cyhalothrin, fenpropathrin, cycloprothrin, esfenvalerate, etofenprox, etc. It may have functional assistant, diluent or carrier added to compound into oil emulsion, soluble liquid, super low capacity sprayed agent, water emulsion, microemulsion or other preparation forms. It has wide pesticidal spectrum, high activity, low cost, less resistance and other features, and may be applied in preventing and controlling pests of rice, vegetable, cotton, corn, fruit tree, tobacco and other crops.

The invention provides a preparation method for a quantum dot fluorescent imprinted polymer and belongs to the technical field of preparation of environment-friendly materials. The preparation method comprises the following steps: firstly, synthesizing a precursor sodium hydrogen telluride in a needle pipe; synthesizing a water-soluble CdTe quantum dot by using thiomalic acid as a protection agent; finally, synthesizing the quantum dot fluorescent imprinted polymer which takes cyhalothrin as a template molecule by using a reverse micro-emulsion method so as to optically detect the cyhalothrin. The prepared quantum dot fluorescent imprinted polymer has high optical stability and pH (Potential of Hydrogen) stability and has the capability of selectively identifying the cyhalothrin.

The invention provides a pymetrozine-containing ultralow volume liquid agent, and belongs to the field of pesticides. The ultralow volume liquid agent consists of pymetrozine or active ingredient compounded by using the pymetrozine and an active ingredient II, and the balance of aids and solvent; and the active ingredient II is any one of bifenthrin, beta-cypermethrin, lambda-cyhalothrin, cyfluthrin, fenpropathrin, deltamethrin, etofenprox, triazamate, tolfenpyrad, chlorantraniliprole, flubendiamide, ethiprole, abamectin, emamectin benzoate, ivermectin, sec-butyl phenyl-N-methyl carbamate, buprofezin, hexaflumuron, flufenoxuron, chlorbenzuron, diafenthiuron, indoxacarb, 1,2-Dibenzoyl-1-tert-butylhydrazine and tebufenozide. The ultralow volume liquid agent is used for preventing and controlling multiple pests on paddy, wheat, corn, vegetables, tobacco, tea trees, fruit trees and sugarcane by ultralow volume spraying, low volume spraying or ultralow volume electrostatic spraying. The ultralow volume liquid agent has the advantages of low water consumption, high effect, long acting time, synergy and the like.

The invention provides an insecticidal suspending agent containing dinotefuran. The suspending agent is characterized by being prepared from the following components in mass percentage: 1-30% of the dinotefuran, 0.1-35% of a second active component, 3-9% of a wet dispersant, 0.1-0.5% of a de-foaming agent, 1-6% of an anti-freezing agent, 0.1-4% of a thickening agent, 0.1-0.5% of a preservative, 0-2% of a pH (Potential of Hydrogen) adjusting agent, 0-2% of an antioxidant, 0.5-5% of a functional auxiliary agent and the balancing being water, wherein the second active component is one of bifenthrin, imidacloprid, methylamino abamectin benzoate, cyhalothrin, thiamethoxam, indoxacarb, chlorfenapyr, acetamiprid and ethiprole. According to the insecticidal suspending agent, special components are selected and the content of each component is strictly limited; and the prepared insecticidal suspending agent has the very good fast-acting property and lasting period and has the very good prevention effect on tea lesser leafhopper, aleyrodid, thrips, aphids and the like. After the functional auxiliary agent is added, the insecticidal efficacy is improved by 10-12% when being compared with a medicament which is not added with the functional auxiliary agent.

The invention discloses a fipronil compound pesticide which comprises the following ingredients by weight: 0.1 to 90 percent of fipronil, 0.1 to 90 percent of bifenthrin, 0.1 to 90 percent of high-efficiency Lambda-cyhalothrin, 0.1 to 90 percent of imidacloprid, 0.1 to 90 percent of thiamethoxam, 0.1 to 90 percent of banleptm and balance solvent or auxiliary agent useable and acceptable in pesticide. The compound pesticide has a plurality of pesticide theories and strong complementarity in an action mode without antagonism action, has obvious synergized action and widens the insecticidal spectrum and insects are not easily resistant to the fipronil compound pesticide.

The composition with pesticidal and miticial activity is one containing 4-bromo-2-(4-chlorphenyl)-oxethylmethyl-5- (trifluoromethyl) polyrolyl-3-formonitrile as one active component as well as one or several selected from lambda-cyhalothrin, nicotine pesticide, hydrazide pesticide, pyrazole pesticidal miticide, synthetic chitin inhibitor and pyridaben. The composition with pesticidal and mitical activity of the present invention may be used in preparing and killing pest and mites in farm and garden crops.

The invention pertains to the technical field of biologic degrading for chemical pesticide, and relates to a bacterial strain that can efficiently degrade Pyrethroid, Organophosphorus and vermectins pesticides and the application of the bacterial strain. The bacterial strain is an Acinetobacter sp. JCX22D bacterial strain, the biologic fature of the bacterial strain is Gram's negative, free from flagella, in form of short rod, is of esterase and lipase activity, free from oxidase activity, and can take use glucose and fructose. The bacterial strain is resistant to Ampicillin and low-concentration Spectinomycin and nalectin, and not resistant to rifamide. The degrading efficiency of the bacterial straine is more than 72% for high-efficiency cypermethrin, cyhalothrin, decamethrim, bifenthrin pesticid, is more than 70% for diazinon, parathion-methyl, phoxime and chlorpyrifos, and is 90% for vermectins. The bacterial strain can be used for biologically degrading above pesticides, and biologically recovering or cleaning any water body, soil and agricultural products that are polluted by pesticides.

The invention relates to a method for preparing magnetic / hollow double-shell layer print adsorbent by emulsion polymerization and belongs to the technical field of the preparation of environment function materials. Attapulgite is used as stabilizer; a few Fe3O4 nanometer particles are used as a magnetic separation carrier; a dispersion solution of hydrophilic Fe3O4 nanometer particles and attapulgite is used as a water phase; and a mixture of organic solvent hexadecane, cross-linking agent styrene, template molecule cyhalothrin, initiator azo isobutyric dimethyl ester and functional monomers acrylamide and tetra-vinyl pyridine is used as an oil phase. The water phase and the oil phase are mixed to prepare stable oil-in-water emulsion in an ultrasonic manner; and the magnetic hollow double-shell layer print polymer is prepared by emulsion polymerization. The magnetic hollow double-shell layer print polymer can be applied to selective recognition and separation of cyhalothrin in an aqueous solution. The magnetic hollow double-shell layer print polymer has a hollow double-layer structure, wherein the hollow structure can be used for effectively increasing adsorption capacity; the strength of the obtained printer polymer is enabled to be high by the inorganic particle layer in the shell layer; and the recognition points are unlikely to be damaged.

The present invention discloses an insect disinfestation composition containing tetrachlorantraniliprole and pyrethroid, wherein the effective components are an active component A and an active component B, the active component A is selected from tetrachlorantraniliprole, the active component B is any one compound selected from efficient cyhalothrin, ethofenprox, deltamethrin, fenpropathrin and bifenthrin, and a weight ratio of the active component A to the active component B is 70:1-1:70. The composition provides synergy effects for a plurality of pests harmful for agricultural production, and has characteristics of pesticide consumption reduction, reduction of residual pesticide on crops, environmental pollution reduction, safety to human and animals, good environment compatibility, and pest drug resistance generation resistance.

The invention provides a lufenuron-containing aqueous emulsion and a preparation method thereof. The aqueous emulsion mainly comprises an active component A, an active component B, solvent, emulsifier and water, wherein the active component A is lufenuron; the active component B is imidacloprid, acetamiprid, lambda-Cyhalothrin, beta-cypermethrin or chlorpyrifos; the solvent is one or more of aromatic hydrocarbons, alkyl phthalate esters, alkylene carbonic esters, ionic liquids and N-alkyl pyrrolidones; and the emulsifier is one of mixture of anionic and nonionic surfactants. The preparation method comprises: (1) preparing an oil phase and an aqueous phase; and (2) adding the oil phase to the aqueous phase or adding the aqueous phase to the oil phase under a high-shear condition so as to obtain the aqueous emulsion. The lufenuron-containing aqueous emulsion has the advantages of high stability and small particle size.

The invention discloses an insecticidal composition containing metaflumizone, which comprises two active ingredients, namely the A ingredient and the B ingredient, wherein the A ingredient is the metaflumizone, the B ingredient is one of high-effect cypermethrin, cyhalothrin, profenofos, trichlorfon, diafenthiuron, pleocidin, tebufenozide, hexaflumuron, chlorfenapyr, pyridaben, acetamiprid, isoprocarb, dimehypo and padan, and the weight ratio of the A active ingredient to the B active ingredient is 1: 50-10: 1. The insecticidal composition is used for controlling lepidoptera pests in vegetables, rice, fruit trees, cotton and other crops, such as diamond-back moth, beet armyworm, rice leaf roller, chilo suppressalis, yellow rice borer, leaf roller, cotton bollworm and the like. The two active ingredients are mixed, the cotoxicity coefficient (CTC) value of the mixture is calculated according to the Sun Yunpei method, the insecticidal composition shows obvious synergy, the dosage of theactive ingredients can be reduced, and the generation of resistance to a new medicament, namely chlorantraniliprole can be deferred.

The invention relates to the technical field of drug controlled release, and in particular relates to a preparation method of a drug-loading Pickering emulsion. A coupling esterification reaction is conduced to produce lauryl alcohol sodium alginate; modified sodium alginate and flake inorganic LDH nanoparticles with positively charged surface are used as emulsifiers; in an aqueous dispersion system, solid particles and anionic polymeric surfactant are closely integrated to form a layer of dense oil / water interfacial film through electrostatic interaction, so as to prepare the stable sustained-release drug-loading Pickering emulsion. A hydrophobic pesticide lambda-cyhalothrin can be embedded in the emulsion droplets to form a drug-store microemulsion small environment, so as to further improve the drug loading amount and release properties of Pickering emulsion on the drug, and expand the application of Pickering emulsion to pesticide drug delivery. The invention has good application prospects in the fields of pesticides and biological medicament transmission.

The invention discloses a method for preparing cyhalothrin molecular imprinting polymer microspheres, which comprises the following steps of: 1) dissolving cyhalothrin and functional monomer serving as template molecules into a pore forming solvent; 2) adding cross linker and initiator into the obtained solution, introducing nitrogen to remove oxygen and sealing, and then placing the solution in an oscillator for heating reaction; 3) centrifuging the obtained reaction product, and re-dispersing the collected polymer in an extract in a volume ratio of methanol to acetic acid of 8.5-9.5: 1; 4) ultrasonically extracting the polymer suspension, centrifuging, and repeatedly washing and centrifuging the obtained sediment in turn; and 5) washing the template molecule-free polymer obtained in the step 4) to be neutral by using methanol, performing suction-filtration, and performing vacuum drying to obtain the cyhalothrin molecular imprinting polymer microspheres. The polymer microspheres obtained by the method have good selective identification function and high bonding capacity for the cyhalothrin.

The invention relates to a microcapsule suspension, the high-efficiency cyhalothrin microcapsule suspension comprises the following components: 1-20% of high-efficiency cyhalothrin, 1-10% of a solvent, 1-8% of a capsule wall material, 0.1-3% of a protecting adhesive, 2-5% of an emulsifier, 3-5% of a dispersant, 0.01-14% of an adjuvant and 1-99% of water. The preparation method is characterized in that a high-efficiency cyhalothrin active substrate is taken as the capsule core, a polyurea resin is taken as the capsule wall material, an interfacial polymerization technology is used for preparing the high-efficiency cyhalothrin microcapsule suspension, and finally the cyhalothrin microcapsule suspension is prepared. The effective components in the cyhalothrin microcapsule suspension are concentrated in the capsule core, and other medium can be water, such that environmental pollution is reduced, and production cost is effectively reduced. The high-efficiency cyhalothrin microcapsule suspension has release controlling capability, pesticide lasting period can be prolonged by 3-10 times, acute toxicity of original medicine can be reduced, toxicity of the cyhalothrin microcapsule suspension on non-target organisms is also reduced, and the high-efficiency cyhalothrin microcapsule suspension is safe to use and transport.

The invention discloses an externally used preparation for household pet disinsection and sterilization, which employs ketoconazole or / and chlorhexidine acetate as the active constituents, and balancing auxiliary materials. wherein the effective composition of bactericide in the external preparation comprises 0.1-20.0% of ketoconazole and 0.04% of chlorhexidine acetate, the effective composition of pesticide in the external preparation comprises 0.001-20.0-% of natural insecticidal cyhalothrin and balancing additive auxiliary materials, the effective composition of sterilizing complexing agent in the external preparation comprises 0.001-20.0úÑ of natural insecticidal cyhalothrin, 0.04% of chlorhexidine acetate, and 0.1-20.0% of ketoconazole.

The invention relates to a pesticide combination, which is characterized by comprising the active ingredients including tolfenpyrad (A) and a pyrethroid insecticide (B) which can be beta-cypermethrin,cypermethrin, beta-cyfluthrin, lambda-cyhalothrin, bifenthrin, fenpropathrin or deltamethrin. The mass ratio of A and B in the pesticide combination is 100:1 to 1:100. The pesticide combination of the invention is suitable for controlling various common pests and mites in agriculture.

The pesticide composition consists of emamectin benzoate 0.1-5 wt%, effective component B 0.2-30 wt%, synergist 0.1-5 wt%, emulsifier 5.0-20 wt%, and solvent 45-90 wt%. The effective component B is chlorfenapyr, diafenthiuron, fipronil, beta-cypermethrin, cyhalothrin or their any mixture. The present invention can prevent and kill several kinds of pests, and this can reduce pesticide consumption, lower agricultural cost and reduce pollution.

The invention discloses a cyhalothrin moisture particulate agent insecticide for preventing agricultural cruciferae vegetable cabbage caterpillars or aphids. The insecticide is particulate agent mix-processed by cyhalothrin, auxiliary agent and filling materials, capable of rapidly disintegrating and dispersing in water to form a high suspending and stable disperse system. The cyhalothrin moisture particulate agent insecticide belongs to insecticide for protecting plants, and is utilized for resolving the missible oil insecticide questions of low flashing, unsafe storage and transportation, bad insecticidal effect, high cost and environmental pollution. The cyhalothrin moisture particulate agent insecticide of the medicament has no floating dust during processes of producing, utilizing and packing, is safe for operators and doze not pollute environment. Compared with wettable powder, the cyhalothrin moisture particulate agent insecticide can greatly lower packing, storing and transporting cost, the medicament has great dispersity and high suspending rate in water, and cruciferae vegetable cabbage caterpillars and aphids preventing and curing rates respectively achieve 88.65-99.36% and 89.6-98.56%. Compared with the prior art, parasiticide effect of the cyhalothrin moisture particulate agent insecticide of the invention is more than one time enhanced.

The invention provides a microcapsule preparation and preparation thereof and a microcapsule suspending agent. The microcapsule preparation comprises a microcapsule shell and pesticide active ingredients coated with the microcapsule shell, wherein the pesticide active ingredients include pyraclostrobin, abamectin and efficient cyhalothrin. According to the microcapsule, the three pesticide active ingredients can effectively develop a synergistic effect, and has consistent release property and persistence; the synergistic effect is fully developed; the destroy of bad factors to the three pesticide active ingredients is blocked; the storage stability of the microcapsule preparation and an agent containing the microcapsule preparation is improved; and the degradation speed is reduced, thereby improving the bioavailability and improving the prevention and treatment effect. The preparation technology is easy to control; the stability of the performance of the prepared microcapsule preparation is effectively ensured. The microcapsule suspending agent contains the microcapsule preparation.

The invention relates to a method for preparing a molecularly imprinted polymer for fluorescence detection of cyhalothrin. By adopting the method, a spherical fluorescent molecularly imprinted polymer (F-MIP) of taking pyrethroid cyhalothrin as a template molecule, acrylamide (AM) as a functional monomer, allyl fluorescein as fluorochrome, ethylene glycol bi(methacrylic acid) ester (EGDMA) as a crosslinking agent and 2,2'-azobisisobutyronitrile (AIBN) as an initiator is synthesized by adopting a precipitation polymerization method. The prepared fluorescent imprinted polymer has high sensitivity and low detection limit, has strong selective recognition ability on cyhalothrin, and can be applied to quantitative detection analysis of ultratrace cyhalothrin.

The invention discloses a nematicide composition containing oligosaccharides and application thereof. The composition contains a controlling-effective amount of oligosaccharides and nematicide; the content of the oligosaccharides accounts for 1 to 10% of the gross weight of the composition, and the oligosaccharides comprise chitosan oligosaccharide, sodium alginate oligosaccharide and pectin oligosaccharide; and the content of the nematicide accounts for 0.5 to 30% of the gross weight of the composition, and the nematicide is one or more selected from the group consisting of avermectin, carbosulfan, emamectin benzoate, methomyl, chlopyrifos, trichlorfon, lambda-cyhalothrin and phoxim. The composition is applied to field crops, commercial crops and fruits and vegetables suffering from damage by nematode and can effectively prevent occurrence of nematode; as the oligosaccharides capable of inducting disease resistance of plants and promoting root growth are introduced into a nematode controlling drug, growth and nutrient absorption of plants are promoted and a controlling effect is exerted on soil-borne diseases while nematode is killed.

The invention discloses a lipopeptide-producing bacillus pumilus, and classification thereof is named to be Bacillus pumilus Y8A which is preserved by China Center for Type Culture Collection (CCTCC) in Wuhan University with the preservation number of CCTCCM 209108. The invention also discloses an application of the lipopeptide-producing bacillus pumilus in promoting the micro-biological degradation process of petroleum and / or cyhalothrin pesticide. Bacterial strain Y8A of the invention can produce lipopeptide biosurfactant with high efficiency and stability, thereby effectively promoting the micro-biological degradation process of petroleum and / or cyhalothrin pesticide degrading bacteria. Bacterial strain Y8A with the function of efficiently producing lipopeptide is expected to work as a new-generation bacteria and cosolvent for antibiotic production and, is widely used in agriculture, medicine, cosmetic and food industries, and can be used for restoration of pollutant environment together with other organic pollution degrading microbes. The bacterial strain is resistant to a plurality of antibiotics with easy fermentation course and convenient operation.

The invention relates to a synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof. The synergy insecticidal composition contains main effective components of dinotefuran and pyrethrin pesticides. The pyrethrin is one selected from efficient cypermethrin, cyhalothrin, cyhalothrin, bifenthrin, alphacypermethrin, deltamethrin, fenvalerate, cypermethrin, fenpropathrin, silafluofen, efficient cyhalothrin and ethofenprox. The dinotefuran and pyrethrin are in a mass ratio of 0.1-80:0.1-50. The insecticidal composition can generate efficient synergism, overcome and delay resistance of insects and expand control spectrum, and has fast insecticidal speed and reduced drug usage cost. The insecticidal composition of the invention can be used for controlling homoptera insects of aphid and whitefly, etc. and has an effect obvious better than that of a single dose.

The invention provides a method for preparing gold nano particles. The method particularly comprises the following steps of: at room temperature, adding perchloric acid gold into distilled water to obtain 10<-2>mol / L aqueous solution of the perchloric acid gold; adding sodium citrate and sodium borohydride while stirring the aqueous solution; continuously stirring the mixed solution for 0.5 to 2 hours; and adding 3*10<-5>mol / L aqueous solution of mercaptoethylamine to obtain mercaptoethylamine-modified gold nano particles, wherein the weight ratio of the distilled water, the aqueous solution of the perchloric acid gold, the sodium citrate, the sodium borohydride to the aqueous solution of the mercaptoethylamine is 1:(0.008-0.01): (0.032-0.04):(0.04-0.12):(0.005-0.05). The method is simple and has high operability; and by the change of visible color of the gold nano particles prepared by the method, cyhalothrin in esbiothrin pesticides can be quickly identified and detected, and the detection limit reaches national standard value.

The invention relates to an insecticidal and acaricidal composition which comprises the active ingredients of spirodiclofen and any one of bifenthrin, high efficiency cyhalothrin and acrinathrin as adimethrin type insecticide and acaricide, and the ratio of the mass part of the spirodiclofen to the dimethrin type insecticide and acaricide is 5:1-1:50. After the spirodiclofen and the selected dimethrin type insecticide and acaricide are compounded, the insecticidal and acaricidal composition has a marked synergistic function, good quick action and a long lasting period, is helpful for overcoming or delaying the occurrence of drug resistance of harmful acarids, and has a function of secondarily treating pests. The insecticidal and acaricidal composition is used for the control of the acarids and pests on crops including fruit trees, cotton, vegetables and the like.

The invention relates to a preparation method of a microzyme magnetic blotting composite microsphere adsorbent, and belongs to the technical field of environmentally-friendly functional material preparation. The method comprises the following steps: preparing ferriferrous oxide nanoparticles through a coprecipitation process, carrying out hydrophobic modification on the surface of the nanoparticles, preparing a stable Pickering emulsion with an oleic acid modified microzyme aqueous solution as a water phase, cyhalothrin as a template molecule, methacrylic acid and 4-vinylpyridine as functional monomers, ethylene glycol dimethacrylate as a cross-linking agent, dimethyl 2,2'-azobis(2-methylpropionate) as an initiator and hydrophobic Fe3O4 as an oil phase, and carrying out thermal-initiated polymerization to prepare the microzyme magnetic blotting composite microsphere adsorbent. Blotting microspheres obtained in the invention have a good magnetic stability, and the adsorption balance, the dynamics and the selection identification performance of the adsorbent are researched through static state adsorption experiments. Results show that the blotting adsorbent prepared in the invention has a good adsorption capacity, fast adsorption kinetics, and has a selection identification performance on LC.

The invention relates to a preparation method of a cyhalothrin and chlorfluazuron microcapsule suspension-suspension and the microcapsule suspension-suspension. The method comprises the following steps: a, an aqueous solution of an amino resin prepolymer is mixed with cyhalothrin emulsifiable concentrate, and a first material is obtained; b, the first material is mixed with a buffer solution, and a second material with the pH value being 5-7 is obtained; the second material is mixed with an acid solution, and a third material with the pH value being 3-4 is obtained; d, the third material is processed at the temperature of 40-70 DEG C for 2-7 h, and a fourth material is obtained; e, the fourth material is mixed with a chlorfluazuron suspension and an emulsion dispersant, and the cyhalothrin and chlorfluazuron microcapsule suspension-suspension is obtained. The cyhalothrin and chlorfluazuron microcapsule suspension-suspension prepared with the method has better storage stability and can control crop pests in a slow-release and long-acting manner, the use times and use amount are reduced, the cost is saved, and environmental pollution is reduced.

The invention discloses a microemulsion pesticide. The microemulsion pesticide consists of the following ingredients in percentage by weight: 2.2-10% of active pharmaceutical ingredients, 2.5-20% of cyclohexanone, 2-10% of polyoxyethylene nonyl phenyl ether, 0.5-5% of agricultural emulsion No. 500, 2-10% of agricultural emulsion No. 602 and the balance of water, wherein the active pharmaceutical ingredients comprise one or two of beta-cypermethrin, iambda-cyhalothrin, cyfluthrin, methomyl, carbosulfan, pyriproxyfen, fluacrypyrim, diafenthiuron, hexaflumuron, phoxim, abamectin and acetamiprid. The microemulsion pesticide has the advantages of wide application scope, stable formulation and simple formula, and is convenient to operate.