191 results about "Dichlorvos" patented technology

The invention discloses a bacillus cereus strain, which is preserved in China Center for Type Culture Collection with a preservation number of CCTCC NO:M209001. The invention also discloses a pyrethroid pesticide degrading enzyme prepared by using the bacillus cereus strain as an initial strain and a method for preparing the same. The strain is a bacillus cereus which is separated from the body of a tea plant and has high pyrethroid pesticide degradation efficiency. The intracellular crude enzyme of the strain has high efficiency in the degradation of pyrethroid pesticides such as cypermethrin, cyfluthrin and fenpropathrin, but low efficiency in the degradation of organophosphorus pesticides such as cygon, panaplate, methamidophos, chlorpyrifos and the like.

The invention discloses a chemiluminescence sensing detection method for organophosphorus pesticide residues and application thereof. The method is characterized by comprising the following steps: by taking a chemiluminescent probe as an indicator, indicating the organophosphorus pesticides to inhibit the degree of reducing choline produced by acetylcholine chloride subjected to catalytic hydrolysis of acetylcholin esterase, coupling choline oxidase to catalyze choline to generate hydrogen peroxide, then oxidizing a luminescence probe to generate chemiluminiscence by virtue of hydrogen peroxide, carrying out a multi-step coupling reaction to realize sensing detection of the organophosphorus pesticide residues by utilizing a chemiluminescence apparatus. According to the sensing method, 96 samples can be detected within 20 minutes, and dichlorvos is taken as an example, the detection limit reaches 1nmol / L. The method is sensitive and rapid and can be used for blood sample monitoring of patients suffering from poisoning of foods, water samples and organophosphorus poisons.

The invention discloses an ointment for preventing and treating insect pest longicorn of a poplar, belonging to the field of pesticide and preparation thereof. The ointment is prepared from the following raw materials by weight percent: 1-10% of Chlorantraniliprole, 1-50% of dichlorvos and the balance of an addition agent. The bark on the trunk of the poplar, with perpendicular distance of 0.3-1.8m from the root of the poplar, is cut off from top to bottom in a spiral ring manner, so as to form a spiral groove, the width of the spiral groove is 2-20cm, the depth of the spiral groove is the distance between the surface of the poplar to the phloem thereof, and the ointment is uniformly spread in the spiral groove. The ointment spread on the part of which the bark is peeled, on the trunk can be absorbed inside through the plant, thus having good adhesive force and long effect, and the ointment is convenient and simple to apply, improves the use ratio, lowers the environment pollution, has certain touch out action, and can prevent pests from creeping on the trunk up and down, thus greatly relieving the harm of the pests to the plant.

The invention relates to a gas chromatographic method for detecting the residue amount of nine kinds of organophosphorus pesticide in rice. Qualitative and quantitative detection on the pesticide residues of dichlorphos, acephate, omethoate, dimethoate, phorate, malathion, fenitrothion, isocarbophos and triazophos is achieved. The gas chromatographic method is characterized in that acetonitrile is used as extractant, extracting solutions are concentrated through a gas blowing concentrator, and after volume metering is carried out through acetone, trace analysis is directly carried out on a gas chromatograph. The gas chromatographic method has the advantages that the separating effect of a chromatographic column on a target object is good, the detection result is high in accuracy, reproducibility is good, and method sensitivity meets the technical requirement of multi-pesticide-residue detection; compared with the method of GB / T5009.145-2003 national standards (the detection of multiple kinds of residues of organophosphorus and carbamates pesticide in plant food), the gas chromatographic method is simpler, simplifies the pre-processing processes of samples, shortens detection time, and saves cost.

The present invention relates to a pesticide emulsificable concentrate preparation, in the concrete, it relates to a new-type pesticide emulsifiable concentrate preparation by using white camphor oil as solvent instead of toluene or xylene, and the active component of said pesticide can be abamectin or its salt, avi.high-effective cypermethrin, pyrethroid pesticide or dichlorvos.

The present invention discloses a pesticide main agent for controlling poplar longicorn and preparation made up by using said pesticide main agent. Said main agent is made up by mixing 2.0-20.0% of acetamiprid and 10.0-40.0% of dichlorvos or trichlorfon or acephate.

The invention relates to a pest capturing device, in particular to a portable pest capturing device which is combined with a main working cabin and a pest-storing net cabin, etc., which are made from materials such as PVC and arranged with matching negative pressure suction. The device is used for capturing flies, mosquitoes, deerflies and cabbage caterpillars. The device can replace toxic chemical spraying agent such as dichlorvos and dimethoate for killing pests and is applicable to families in urban or suburban areas, guesthouses, restaurants, hotels, hostels, eateries, offices, airplanes, trains, vehicles, ships, dormitories, farms, urban and suburban refuse dumps, environmental hygiene organizations and farmlands all over the world for protecting vegetables, fruits and foodstuff from being contaminated by pesticide residues; the device can effectively capture the pests that harm human beings by spreading cholera, typhoid and destroy farm plants with a speed of capturing 80 to 300 pests per minute, and then distributes the living pests without the chemical contamination of the pesticides to livestock farms for breeding chickens, ducks and fishes as high protein feedstuff so as to realize the aim of stopping general environment pollution, turning harm to benefit and protecting the health of human beings.

The invention discloses a liquid chromatography-tandem mass spectrometry method for measuring 18 semi-volatile organic pollutants in water. According to the method, a clean water sample such as surface water, drinking water, and the like is simply filtered by a 0.22 [mu]m micro-porous filter membrane, and then a liquid chromatography-mass spectrometry instrument is used to separate and detect the following 18 compounds in water: aniline, benzidine, acrylamide, picric acid, carbaryl, deltamethrin, microcystic toxin-LR, dibutyl phthalate, bis(2-ethylhexyl) phthalate, dichlorvos, trichlorphon, parathion, methyl parathion, malathion, dimethoate, demeton, atrazine, and carbofuran. The provided method can detect many target substances. The detection range of the method is 0.001 to 0.49 [mu]g / L, the relative standard deviation is 0.7 to 15.4%; and the analysis method has the advantages of high sensitivity, quick analysis speed, little pollution, and simple and efficient pretreatment, is especially suitable for standard analysis of drinking water source monitoring, and solves the problems of bad conformability, large labor strength, and low analysis efficiency of the conventional standard method.

The invention relates to a pesticide composition preventing and controlling rice water weevil of the rice, the application of the pesticide composition and the preparation method of the emulsion in water. Mass percentage of the content of each ingredients is as following: active ingredient A: 0.2-20%; active ingredient B: 0.7-75%; surface-active material: 0-14%; the rest mass is one or more than one of the carrier, water, organic solvent, thickener, stabilizer, anti-freezer, defoamer or agglomerant, wherein, the active ingredient A is fipronil; the active ingredient B is one of chlorpyrifos, dipterex, dichlorvos, triazophos, profenofos, carbosulfan, fenobucarb, isoprocarb, hexaflumuron, flufenoxuron, imidacloprid or acetamiprid. The pesticide composition has the advantages of delaying drug resistance of the pests, reducing the consumption cost of the pesticide, having excellent effect of killing rice water weevil and the highest disinfestation effect up to 99%.

The invention relates to a method for preparing a high-yield apple tree cultivation fertilizer. The high-yield apple tree cultivation fertilizer comprises the following materials by weight percentage: 32 to 45 percent of dry excrement, 25 to 30 percent of bean cake, 12 to 19 percent of rapeseed cake, 3.6 to 6.7 percent of compound fertilizer, 3.5 to 4 percent of urea, 1 to 1.8 percent of monopotassium phosphate fertilizer, 1.7 to 2 percent of vinasse powder, 1 to 2 percent of carbendazol, 0.5 to 1 percent of dichlorvos, 0.5 to 1 percent of paclobutrazol, 0.5 to 1 percent of fruit tree spotting agent, 1 to 2 percent of calcium carbonate, and 0.7 to 1.5 percent of fruit setting agent solution. The method comprises the following steps: taking the dry excrement, the bean cake, the rapeseed cake, the compound fertilizer, the urea, the monopotassium phosphate fertilizer and the vinasse powder in proportion, mixing the materials together, and crushing the mixture in a crusher; taking out the crushed mixture out and adding the carbendazol, the dichlorvos, the paclobutrazol, the fruit tree spotting agent, the calcium carbonate and the fruit setting agent solution into the mixture, and stirring the mixture evenly; pouring all the mixture into a stirrer, stirring the mixture for 40 minutes and then taking out the mixture; adding water into the mixture according to a ratio of1:1.5-1:1.8, and stirring the mixture evenly; heaping the mixture together, covering the mixture with plastic cloth, compacting the mixture, and fermenting the mixture for 7 days to obtain a qualified fruit tree cultivation fertilizer.

The invention relates to the technical field of method for fruit tree disease and pest control, in particular to a method for preventing and treating peach tree wood rot. The method comprises the following steps that in 1-2 months after quick-acting fertilizer is applied to peach trees, a diseased position and 1-3 cm surrounding the diseased position are cut away from phloem to xylem with a disinfected knife, cut-away wood residues are collected, 3-5-degree Be' lime sulphur is used for performing spraying and burning up the wood residues, then, antiseptic cream coats the cut-away diseased position and the position is bound with a black film; meanwhile, a bore hole is filled with a DDVP 600-800-fold solution with the concentration being 50%, and the worm hole is tightly sealed with soil; from the last ten days of March to the first ten days of next February, peach trees are clipped, and clipped wounds are treated, meanwhile, from February to October, a medicament is adopted for spraying an orchard, and spraying is performed one to three times every month. Pathogenic bacteria can be effectively killed, meanwhile, callus tissue can be rapidly healed, regeneration of wood rot is effectively eradicated, and the peach tree survival rate is ensured.

A film-spreading oil agent capable of preventing and curing rice planthopper comprises the components by weight percent: 10-60 percent of effective component, 3-85 percent of additive, 0-70 percent of filling material, 5-14 percent of water surface diffusant, and 0-15 percent of water, wherein the effective component is one, or combination of any two selected from chlorpyrifos, diazinon, dichlorvos, imidacloprid, thiamethoxam, clothianidin, thiacloprid, thiazoline, nitenpyram, dinotefuran, pymetrozine, isoprocarb, fenobucarb, metolcarb, methyl carbamate, sulfoxaflor and flonicamid, and the weight ratio of the two effective components under two ways is (1:10)-(10:1). The oil agent has the technical effects that the effect of preventing and curing the rice planthopper is improved, the operation is simple, labor and time are saved, no harm is caused for human body, and no pollution is caused for the ambient condition when the oil agent is applied; moreover, the utilization ratio of the effective component is improved, the labor intensity is reduced, the labor is saved, and the agricultural production cost is reduced.

The invention relates to a spreading oil for controlling Lissorhoptrus oryzophilus Kuschel. A technical scheme adopted in the invention is characterized in that the spreading oil comprises 10-60wt% of an effective component, 3-80wt% of an assistant, 0-70wt% of a filler, 5-10wt% of a water surface dispersing agent and 0-10wt% of water, wherein the effective component comprises one or two of chlopyrifos, diazinon, dichlorvos, imidacloprid, thiamethoxam, clothianidin, thiacloprid, thiazoline, nitenpyram, dinotefuran, pymetrozine, isoprocarb, fenobucarb, MTMC, dimethacarb, ethofenprox, carbosulfan, sulfoxaflor and flonicamid, and the weight ratio of the above any two is (1:10)-(10:1) when the effective component combines the above two. The spreading oil has the advantages of simple operation during drug application, labor and time saving, improvement of the utilization rate of the effective component and the control effect on the Lissorhoptrus oryzophilus Kuschel, no harms to human bodies, labor intensity reduction, manpower saving, and saving of the agricultural production cost.

The invention provides a disease and pest prevention method for sasanqua, and relates to the technical field of sasanqua planting management. The disease and pest prevention method for the sasanqua is characterized in that the method includes the following steps that sasanqua anthracnose is prevented, from July to September, when the saplings planted for one to two years are in a peak period of diseases, the saplings are sprayed with 1% Bordeaux mixture plus 2% tea bran water three times to four times; leaf eating pests are prevented, phototaxis of adult pests is utilized to trap and kill the pests through lamp light, and 1000-1500-time liquid of dipterex and dichlorvos can be sprayed in the larval phase; branch damaging pests and fruit damaging pests are prevented, feign death of the pests is utilized, manual culling is conducted or 1000-time liquid of 90%-dipterex is sprayed to kill the pests, and 1000-time liquid of 40%-omethoate is sprayed to kill scale insects from March to April. The method is good in prevention effect and not prone to recurring, biological prevention is combined with chemical prevention and thus pollution is smaller.

The invention discloses a high-yield crop rotation cropping method, and relates to the field of agricultural planting. By means of within-year intercropping, next-year alternate husbandry and over-year rotation, late maize and short-stalked early-maturing sorghum (soybeans) are selected for intercropping, and ridge ratio is 2:2, 1:3, 3:3 or 2:3. Suppression and moisture conservation are performedafter sowing, double-effect herbicides for sealing are sprayed after maize sowing and before emergence, field seedlings are complete and uniform as required, weeds are eliminated, inter-tillage is performed when maize seedlings grow to achieve 7-8 leaves, nitrogen fertilizers are applied between lines of the maize and the sorghum, and insecticides are sprayed at the end of May to July to prevent corn armyworms and sorghum aphids. Dichlorvos are sprayed in the middle ten days of August to prevent soybean pod borers, and water supply is ensured in soybean flowering, podding and seed filling periods. When maize plants grow to an 8-leaf period and before tasseling, leaf fertilizers and special maize regulators yu-huang-jin are sprayed to perform chemical control and treatment. The high-yield crop rotation cropping method is strong in operability, high in field emergence percentage, good in photosynthetic effect and complementary in intercrop fertilizer efficiency.

The invention relates to a fumigation device of inventory material insecticide, in particular to a mobile Panaplate recirculation fumigation machine; the bottom of a case provided with a control panel is provided with a rotary wheel; the case is provided with an induced-forced draft fan, an atomizing generator, a medicine storage tank and an air compressor; the case is provided with a medicine feeding port which is connected with the liquid medicine input end of the medicine storage tank; the output end of the medicine storage tank is communicated with the liquid medicine input end of the atomizing generator; the gas output end of the atomizing generator is communicated with a warehouse through a gas outlet; the induced-forced draft fan is communicated with the gas output end of the atomizing generator; the air compressor is communicated with the gas input end of the medicine storage tank; the fumigation method comprises the following steps: the air compressor pressurizes towards the medicine storage tank; Panaplate liquid medicine is pushed into the atomizing generator; the atomizing generator provided with an electrical heating plate vaporizes the liquid medicine; the vaporized gas is sent to the warehouse by the induced-forced draft fan. The fumigation machine of the invention is simple to be operated and safe to be used; the fumigation method has wide scope of desinsection with little residue, low cost and considerable economic benefit.

The invention discloses a cultivation method of dictyophora rubrovalvata. The method comprises the following steps: turning over a cultivation land, ridging on the soil after being turned over, and digging cultivation ditches on ridges; using avermectin 150-220 mL, dichlorvos 1800-2200 mL, phoxim 1900-2400 mL, fenpropathrin 165-230 mL and a mushroom protecting agent 80-120 g to disinfect the cultivated soil; constructing a greenhouse; uniformly stirring and mixing raw materials containing sawdust, bamboo sawdust, bagasse, wheat bran, calcium superphosphate, calcium carbonate and magnesium sulfate and performing a high-temperature sterilization on the mixed raw materials, taking bamboos, breaking bamboos into two halves and putting broken bamboos into the cultivation ditches; sterilizing the inside of the greenhouse and inoculating the raw materials under a sterile condition; and starting a spraying system every 2-3 days to spray water on dictyophora rubrovalvata. According to the cultivation method of dictyophora rubrovalvata, the soil of the cultivation land is effectively disinfected, the occurrence of dictyophora rubrovalvata egg rot diseases is relatively well avoided and the yield of dictyophora rubrovalvata is improved.

The invention discloses a planting method of cyclocarya paliurus. The planting method comprises steps as follows: (1), land preparation, plowing and furrowing are performed from February to April, deep holes are dug in furrows, carbofuran granules are scattered, straw is laid and an organic fertilizer is applied to the holes sequentially, and then soil covering is performed; (2), shallow holes are dug at the deep holes one month after soil covering, tree seedlings are planted in the shallow holes, and roots of the tree seedlings are covered with pond mud before transplanting; (3), dichlorvos is sprayed 30-40 days after planting, plant ash is applied to the roots after spraying, dipterex is sprayed 2-3 months after planting, dichlorvos and dipterex are applied alternately every other 2-3 months, and a special fertilizer for the cyclocarya paliurus is applied 2-3 months after planting and applied once every six months. Lasting fertilizer efficiency is provided for quick growth of the tree seedlings in the manner of retaining fertilizer in the deep holes and planting the tree seedlings in the shallow holes, fertilization application and pest control measures taken after planting are scientific and reasonable, the tree seedlings grow fast, and a large quantity of leaves can be picked up next year.

The present invention relates to pesticide technology, and is recombinant acetylcholinesterase and its preparation process and usage in detecting pesticide residue. Recombinant acetylcholinesterase may be dissolved in buffering sodium phosphate solution and after being maintained at 4 deg.c for 22 days, it has 75 % of its initial enzyme activity maintained. It has inhibiting constant on DDVP, omethoate, paraoxon, methyl paraoxon, aldicarb, carbaryl, carbofuran and aphox of 4.4E6, 2.2E4, 1.1E6, 4.2E5, 4.8E4, 5.9E5, 5.1E6 and 2.3E5 separately. It is prepared through selecting seed, shaking cultivation, centrifuging, filtering, depositing, leaching, stirring, dialyzing and freeze drying, and is maintained at -20 deg.c. The detection process includes preparing reagent, treating sample, detecting sample, blank testing, testing sample, and final calculating. The recombinant acetylcholinesterase has obvious sensitivity on organophosphorus pesticide and carbamate chemicals and may be used in detecting pesticide residue.

The invention relates to a method for synthesis of a material with dichlorvos selective separation function. Dichlorvos is taken as template molecule, room-temperature ion liquid (BMIM<+>PF6<->) is taken as an auxiliary template, methacrylic acid is taken as a functional monomer, TRIM is taken as a crosslinking agent and molecular engram technology is adopted to synthesize a novel material with selective adsorbing function. The invention has the advantages of low cost, simple laboratory operation and easy control of reaction conditions; the adsorbent adopting the synthesized material with dichlorvos selective separation function can be applied to solid-phase extraction and liquid chromatogram combination; the dichlorvos detection capacity is largely improved; the material is particularly applicable to adsorptive detection of trace dichlorvos in various fruits, vegetables and other complex hosts.

Provided is an agricultural and horticultural insecticide composition containing flubendiamide and dichlorvos and / or profenofos as active ingredients, and a utilization method therefor characterized in that insects, or plants infested with the insects, or the surrounding land or cultivation carriers where the plants are grown, are treated with an effective dose of the agricultural and horticultural insecticide composition containing flubendiamide and dichlorvos and / or profenofos as active ingredients.

The saef dichlorvos smoke agent consists of dichlorovos 20-27 weight portions, combustion promoter 25-35 weight portions and fuel 30-35 weight portions. The combustion promoter is one or several selected from ammonium nitrate, potassium nitrate, sodium nitrate, potassium perchlorate and potassium permanganate; and the fuel is one or several selected from corn cob, cow manure powder, straw and bagasse. The said agent is bagged, and thus safe without self combustion, low in cost and favorable to environment protection, and its package isolates moisture effectively.

Provided are an agricultural and horticultural insecticide composition comprising flubendiamide and dichlorvos and / or profenofos as active ingredients; and a method for using an agricultural and horticultural insecticide composition, comprising treating insect pests directly, treating crops potentially infested with the insect pests, or treating surrounding soil or cultivation medium of the crops with an effective amount of an agricultural and horticultural insecticide composition comprising flubendiamide and dichlorvos and / or profenofos as active ingredients.

The invention discloses a tea tree planting disease and insect pest prevention and control method. The tea tree planting disease and insect pest prevention and control method comprises the steps that 1, an herbicide is added to quick lime, even mixing is performed, then the quick lime mixture is uniformly scattered to soil in a plowing layer, the quick lime and the soil are uniformly mixed, water is sprayed to wet the soil, rectangular pieces are covered by black films, and tea trees are transplanted after the black films are put for 5-7 days; 2, from the first ten-day period of April to the first ten-day period of June, predatory mites are scattered in a tea garden in which four or more years old of tea trees are planted; 3, in July to September in a morbidity peak period of initially planted one or two years old of tea trees, 1% of Bordeaux mixture and 2% of tea bran water are sprayed for 3-4 times in a mixed mode; 4, starting from the first ten-day period of July, one solar insecticidal lamp is installed every 13320-16650 m<2> in the tea garden till the last ten-day of October; 5, at a disease and insect pest stage, one section of dead epidermis is slightly scraped from staggered positions of two sides of each tea tree trunk to forma semi-circular ring respectively, 40% omethoate missible oil stock solution or liquid of 1000-1500 times of 80% dichlorvos is coated.

The invention discloses an insecticidal combination containing cycloxaprid and organic phosphor, which is mainly characterized in that the combination contains an active ingredient A, an active ingredient B and the balance of adjuvant, the active ingredient A is the cycloxaprid, the active ingredient B is any one of chlorpyrifos, dichlorvos and malathion, the weight ratio of the active ingredient A to the active ingredient B is 60:1 to 1:80, and the combination can be prepared into wettable powder, water dispersible granules, emulsified oil, suspending agent, suspending emulsion, emulsion in water and microemulsion. The insecticidal combination disclosed by the invention has the advantages that the combination can be used for preventing and controlling various injurious insects, the synergistic effect is obvious, the insecticidal spectrum is expanded and the activity to injurious insects on rice, wheat, cotton, fruit trees and cruciferous vegetables is higher; the combination has a slow release effect, the pesticide dosage is reduced, the combination is safe to human and livestock and does not have pesticide damage, and the environmental compatibility is good; and the adhesive force of preparations is enhanced, the preparations are resistant to rainwater washing, the efficacy lasts long, and the like.

The invention provides a determination method of pesticides including dimethoate and the like in Xinhui tangerine peels and products of the Xinhui tangerine peels. The pesticides comprise dichlorvos, methamidophos, acephate, phorate, omethoate, dimethoate, chlorpyrifos, malathion, parathion, quinalphos and ethion. The method comprises the following steps: manufacturing a standard curve, extracting a sample, purifying the sample and determining the sample. The determination method has the advantages of simplicity and rapidness in operation, high sensitivity and strong matrix interference resistance capability, and is suitable for qualitative and quantitative analysis of pesticide residues in the Xinhui tangerine peels and the products of the Xinhui tangerine peels.

A granular imidacloprid with high effect and solubility is prepared from imidacloprid, dichlorvos, carrier (sand) and strong adsorbent through adsorbing imidacloprid and dichlorvos by strong adsorbent, coating by PVC or paraffin wax, and baking.

The invention relates to a preparation method of high-yield cultivation fertilizer for pear trees. The high-yield cultivation fertilizer for pear trees is prepared by the following components by the weight percent: 32-45 of dried human excrement, 25-30 of bean cake, 12-19 of rape seed cake, 3.6-6.7 of compound fertilizer, the 3.5-4 of dried cow-dung, 1-1.8 of potassium dihydrogen phosphate fertilizer, 1.7-2 of dried chicken manure, 1-2 of carbendazim, 0.5-1 of white sugar, 0.5-1 of dichlorvos, 0.5-1 of spot dispelling agent for fruit trees, 1-2 of wood ash and 0.7-1.5 of fruit setting liquor. The dried human excrement, the bean cake, the rape seed cake, the compound fertilizer, the dried cow-dung, the potassium dihydrogen phosphate fertilizer and the dried chicken manure are all combined together according to the weight percent and poured into a crushing machine to be crushed, the crushed material is taken out, the carbendazim, the white sugar, the dichlorvos, the spot dispelling agent for fruit trees, the wood ash and the fruit setting liquor are added and evenly stirred to the crushed material, all the new material is poured into a stirring machine to be stirred for 60 minutes and then taken out, water is added to the stirred material according to the proportion of 1:1.8-1:2.5 for even blending, the stirred material is stacked together and covered and compacted with plastic cloth and then fermented for 10 days to obtain the qualified cultivation fertilizer for fruit trees.

The present invention relates to a dichlorvos and pyridaben mixed smoking agent and its preparation. Its composition includes (wt%) 5-40% of dichlorvos and pyridaben, 0.1-10% of cosolvent, 20-90% of high boiling point solvent and 0.1-30% of compound surfactant. The high boiling point is one of arene No.2 and No.3, liquid paraffin, white oil, chloroben, diglycol and triglycol or several kinds of them, and the cosolvent is one of methyl-sulfoxide, N,N-dimethylformamide, ethanediol and propanetriol or several kinds of them, and the compound surfactant is one of calcium alkylbenzenesulfonate, alkylphenol ethoxylates, phenethylphenol ethoxylates, alkylphenol ethoxylates formaldehyde condensate, castor oil polyethenoxy ether and sec-alkylol polyethenoxy ether or several kinds of them. Besides, it provides its preparation method.

The invention relates to the technical field of pesticide and discloses a pesticide for preventing and controlling Sphecosesia litchivora and a preparation method thereof. The pesticide is prepared from 12 to 22 parts by weight of volatile oil of Wedelia trilobata, 8 to 17 parts by weight of dichlorvos, 8 to 14 parts by wieght of extract of Artemisia scoparia, 12 to 22 parts by weight of bergamot oil, 7 to 14 parts by weight of purslane, 4 to 13 parts by wieght of green onion, 3 to 12 parts by weight of neem flowers, 35 to 46 parts by weight of vegetable oil, 7 to 13 parts by weight of a co-solvent and 3 to 13 parts by weight of a surfactant. The pesticide can effectively prevent and control Sphecosesia litchivora so that a lychee yield is improved. The pesticide has a residue period of only 8 to 10 days and human and animal safety is guaranteed. The invention also provides the preparation method of the pesticide for preventing and controlling Sphecosesia litchivora. The pesticide has a reasonable formula, has good Sphecosesia litchivora prevention and control effects, has short killing time, is environmentally friendly and harmless, greatly reduces injurious insect base and has a great advantage in prevention and control of Sphecosesia litchivora.