178 results about "Methamidophos" patented technology

The invention provides a quality assurance method by high-quality composite degradation of pesticide residues in orange peels, belonging to the technical field of elimination of the pesticide residues in fruit and vegetable. The method comprises the following steps: selecting different varieties of high-quality orange peels as raw materials; compositely soaking the fresh orange peels in alkali liquor and ozone, and then soaking and washing the orange peels with clear water, and meanwhile carrying out ultrasonic washing during the process; and carrying out low-frequency (915MHz) microwave treatment so that the degradation rate of most part of organophosphorus, organochlorine and carbamate pesticides in the orange peels reaches over 80% and ethion and methamidophos can be fully degraded. The method has the advantages that a plurality of the original pesticide degradation methods are systematically screened and integrated, thus the defect of a single method such as different degradation degrees on different pesticides is avoided so as to eliminate the pesticide residues in the orange peel maximally; and by means of the composite method, loss of nutrition as well as color, aroma and taste components during the degradation process of the pesticide residues in the orange peels is lowered minimally so as to keep the original nutrition, flavor and color of the orange peels maximally.

The invention relates to a method for rapidly detecting the residuals of organophosphorus pesticides in vegetables by utilizing an Au nano-particle colorimetric method, which belongs to the technical field of analytical chemistry. The method provided by the invention comprises the following detection steps: preparation of Au nano-particles (AuNps); establishment of a method for detecting organophosphorus pesticides, actual sample detection and the like. The method provided by the invention can simply, rapidly and sensitively detect methamidophos in the organophosphorus pesticides according to the color change of an Au nano-particle system, has high sensitivity and provides convenience for further research, production, supervision and the like.

The invention relates to a method for detecting ten types of organophosphorus pesticides by using magnetic separation-gas chromatography. The method is used for quickly detecting ten types of organophosphorus pesticides (dipterex, methamidophos, acephate, omethoate, moncrotophos, dimethoate, phosphamidon, parathion-methyl, malathion and chlorpyrifos) based on combination of solid-phase extraction, magnetic separation and the gas chromatography. The method comprises the following steps: preparing a magnetic solid-phase extraction agent, establishing a combination system of the magnetic separation and the gas chromatography, and detecting the organophosphorus pesticides in objects to be detected. A method capable of quickly separating and detecting ten types of organophosphorus pesticides at high sensitivity simultaneously is established by taking prepared magnetic chitosan microspheres with high absorption performance on the ten types of organophosphorus pesticides such as dipterex and the like as adsorption functional materials and using combination of the solid-phase extraction, magnetic separation and the gas chromatography. The method is simple in experimental operation, high in detection sensitivity, low in cost and applicable to detection of residues of ten types of organophosphorus pesticides such as trace dipterex and the like in all products.

The invention relates to a gas chromatographic method for detecting residues of five high-toxic organophosphorus pesticides in different texture soils(loam, clay and sandy soil) so as to realize the qualitative and quantitative detection on the residues of methamidophos, parathion, methyl parathion, monocrotophos and phosphamidon pesticides in the soils. The gas chromatographic method is characterized in that acetonitrile is taken as an extracting agent, and after an extraction solution is concentrated with constant volume and is filtered, the trace analysis is directly carried out by using a gas chromatograph. The gas chromatographic method has the advantages that firstly a chromatographic column has a good separation effect on a target object, the accuracy degree of detection results is high, the reproducibility is good, and the sensitivity of the method meets the detection requirements of the residual pesticides; secondly compared with a GB / T14552-2003 (gas chromatographic method for determining organophosphorus pesticides in water and the soil), the national standard method is easier and more convenient, a pretreatment process of soil samples is simplified, the detection time is shortened, and the cost is saved.

The invention discloses a wheat yield increasing fertilizer. The wheat yield increasing fertilizer consists of 15 to 17 weight percent of dried duck manure, 16 to 31 weight percent of dried pig manure, 18 to 25 weight percent of plant ash, 15 to 18 weight percent of wheat yield increasing agent, 5 to 8 weight percent of potassium sulfate, 2 to 5 weight percent of methamidophos, 1 to 3 weight percent of phosphate fertilizer, 1 to 3 weight percent of potassium nitrate, 1 to 3 weight percent of organic compound fertilizer, 1 to 3 weight percent of heavy calcium, 1 to 2 weight percent of multi-effect triazole, 1 to 2 weight percent of trichlorfon and 1 to 2 weight percent of thiodan. The wheat yield increasing fertilizer is prepared by the following steps of: putting the combination of the front 10 raw materials into a stirrer, stirring for 80 minutes and taking out, putting the raw materials into a crusher, crushing the raw materials into granules of 80 meshes, taking the granules out, adding the multi-effect triazole, the trichlorfon and the thiodan, stirring uniformly, pouring the mixture into a stirrer, stirring the mixture for 60 minutes, taking the mixture out, putting the mixture into a model hard granulator, producing hard granular feed and sieving the hard granular feed by using a sieve of 80 meshes to obtain the special fertilizer for increasing the yield of wheat.

The invention relates to a method for rapidly detecting residual organophosphorus pesticide in vegetables by utilizing a double-signal method of CdTe quantum dots and gold nanoparticles (AuNPs), and belongs to the technical field of analytical chemistry. The technical scheme provided by the invention comprises the following detecting steps: synthesizing and purifying a CdTe quantum dot aqueous solution; preparing AuNPs; performing TEM (transmission electron microscope) characterization on AuNPs and a AuNPs-substrate-enzyme system respectively; studying a fluorescence spectrum and an absorption spectrum which are interactive between CdTe quantum dots and AuPNs; and utilizing the double-signal method of CdTe quantum dots and AuNPs to rapidly detect the organophosphorus pesticide. The method can detect methamidophos in the organophosphorus pesticide simply, rapidly and sensitively, has very high sensitivity and provides convenience for subsequent research, production, supervision and the like.

The invention belongs to the field of rapid screening method for methamidophos in vegetables. The method comprises steps of: crushing a vegetable sample, mixing and oscillating with a polar solvent, and carrying out pumping filtration to obtain a filtrate; concentrating to dry, carrying out a constant volume with ultrapure water, and filtering with a 0.045 mum membrane; preparing a nano silver solution by a citrate reduction method; mixing the vegetable extract and the nano silver solution, adjusting a pH to 1.0-5.0, and detecting methamidophos in the sample by a Raman spectrometer; selecting a Raman spectrometer with 785 nm laser wavelength, setting a laser power to 50-300 mw, a scan time of 2-20s, mixing the methamidophos ultrapure water solution and the prepared nano silver solution in a certain ration, and carrying out a laser scan detection; and drafting a standard curve with a methamidophos concentration as an abscissa and a characteristic peak height as an ordinate, so as to analyze methamidophos content in the sample. The invention provides a low detection limit and simply operated Raman detection method, which can rapidly and accurately carry out qualitative and quantitative detection of methamidophos in the vegetable sample and can be used for on-site large scale sample rapid screening.

The invention provides a Bifidobacterium longum LJM002 strain, of which the collection number is CGMCC No.4900. The LJM002 strain is super-sensitive to acephate, and thus, is a working strain for detecting acephate residues in food. The invention also provides a microbiological method for detecting acephate residues in food, which determines whether the residue level of acephate in a food sample to be detected is overproof according to the size of the inhibition zone on the detection culture medium. The method provided by the invention is simple to operate, has the characteristics of low cost and high sensitivity, is suitable for sample detection, and satisfies the detection requirements of Chinese Pesticide Residue Detection Department for mass samples.

The invention provides a high-yield cassava cultivation technology. The high-yield cassava cultivation technology is characterized in that firstly, the planting land is a dry land; secondly, deep ploughing and soil preparation are conducted, and base fertilizer is applied sufficiently; thirdly, good varieties are selected and used; fourthly, thick seed stems are selected and used as cuttage seeds, wherein the seed stems should have vitality and are cut off to be 10-15 centimeters long, and the cut seed stems are soaked in ambam or lime water for disinfection; fifthly, planting is conducted at proper time, wherein when the daily average temperature is above 15 DEG C, planting can be conducted, and manure is applied and buried between every two seed stems; sixthly, growing period management includes filling of the gaps with seedlings, thinning, weeding and after-manuring; seventhly, pest control is conducted, wherein bisultap or carbofuran and fine soil are mixed and applied, or methamidophos is used for trapping and killing pests, and application of the fertilizer is stopped two months before harvesting; eighthly, harvesting is carried out at proper time in autumn, and the root yield and starch content will be lowered if harvesting is conducted too early or too late.

A method for detecting organic phosphorus pesticides by utilizing the fluorescence intensity of a CdTe quantum dot belongs to the technical field of analytical chemistry, and is characterized in that the amount of the residual organic phosphorus pesticides in vegetables is detected by using the fluorescence enhancement effect of the CdTe quantum dot and a colorimetric method for enzyme inhibition, and the detection method comprises the following steps: synthesizing and purifying a cadmium telluride quantum dot aqueous solution; observing a CdTe system containing methamidophos with different concentrations by using a continuous colorimetric method, and detecting the organic phosphorus pesticides by utilizing the fluorescence enhancement effect of the CdTe quantum dot and the colorimetric method for the enzyme inhibition. The method can simply, quickly and sensitively detect the methamidophos in the organic phosphorus pesticides, has very high sensitivity, and brings convenience for the future research, production, supervision and management, and the like.

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 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 yield increasing fertilizer for sesame, which is prepared from the following raw materials in percentage by weight: 5-10% of dry duck excrement, 10-15% of dry rabbit excrement, 20-23% of dry cattle excrement, 8-11% of plant ash, 10-15% of cottonseed hull, 3-7% of calcium superphosphate, 14-22% of zinc fertilizer, 5-8% of phosphate fertilizer, 3-5% of methamidophos, 1-2% of Bavistin and 1-2% of pesticide. The method for preparing the yield increasing fertilizer for sesame comprises the following steps: proportionally putting the first ten raw materials into a mixer, mixing for 60 minutes, taking out, putting the mixture into a pulverizer to pulverize the mixture into 160-mesh particles, taking out, adding the pesticide, evenly mixing, pouring the mixture into the mixer, mixing for 30 minutes, and making the mixture into cylindrical yield increasing fertilizer columns for sesame by using a molding machine, wherein each column weighs 30 grams, and is 5 centimeters high and 7 centimeters wide. The molded yield increasing fertilizer columns need to be compact and solid, and can not be easily broken when being held by hands.

A corn high-yield planting method at least comprises the following steps of step 1, soil selection and preparation; step 2, seed selection and treatment; step 3, treatment before sowing; step 4, sowing; step 5, field management; step 6, prevention and control on plant diseases and insect pests and weeds. In step 5, fertilization is performed on corn in the field manually to provide the nutrition guarantee for the corn in the later growth process and the fertilizer is mainly formed by 40 to 50% of 60% of moisture contained straw, 20 to 30% of inorganic fertilizer, 15 to 20% of monoammonium phosphate, 14 to 27% of plant ash, 5 to 8% of potassium sulfate, 1 to 5% of methamidophos, 1 to 3% of potassium nitrate, 1 to 3% of organic compound fertilizer, 1 to 3% of coarse whiting, 1 to 2% of multi-effect triazole and 1 to 2% of trichlorphon. According to the corn high-yield planting method, the reasonable thinning, watering, f fertilization is performed on the corn according to the production cycle of the corn, the treatment is performed on the soil, and accordingly the production increase and the high quality of the corn can be achieved.

Alcaligenes and its application in degradation of methamidophos Alcaligenes sp.LY-5, the serial number is CCTCC NO:M205027. The methamidophos as nutritive source and it can be degraded into phosphoric acid group and with environmental heavy metal form phosphate precipitation, achieve the antisepsis and dephosphorization effect.

The invention provides a continuous production method of acephate. The continuous production method comprises the following steps: (1) acylation reaction: continuously adding methamidophos, acetic anhydride, a solvent and a catalyst into an acylation device in a certain proportion, and reacting for 65-240 minutes at 20-80 DEG C to obtain a reaction liquid; (2) neutralization reaction: introducing the reaction liquid obtained in the step (1) into a neutralization reactor, and continuously mixing with ammonia or ammonia water for 5-60 minutes at 10-50 DEG C to obtain a neutralization liquid; (3) extraction: introducing the neutralization liquid into an extraction tower to perform reverse extraction; (4) evaporation and concentration: performing evaporation and concentration on an extraction liquid in a double-effect evaporator; and (5) crystallization and drying: crystallizing a concentrated extraction liquid at 5-25 DEG C, then filtering crystallized solids by virtue of a filtering machine, and finally drying the solids in a dryer to obtain acephate. The continuous production method provided by the invention achieves the continuous operation and automatic control in a production process of acephate, and has very strong practicability.

The invention belongs to the technical field of pesticide residue determination, relates to a vegetable and fruit pesticide residue pre-treatment method and in particular relates to an extraction and purification method for determining organophosphorus pesticide residues in fruits and vegetables. The extraction and purification method comprises the following steps of: sampling, adding an acetonitrile extracting solution, purifying by virtue of a MycoSep 226 AflaZon+ small column, and then determining. According to the extraction and purification method, dosage of an organic reagent is reduced, and nitrogen blowing or rotary steaming equipment is not required; a step of detecting organic phosphorus in a conventional method is not required, manpower is reduced, and detection efficiency is improved; purification degree of an organic phosphorus extracting solution is obviously improved, the obtained sample injection solution is clear and transparent, no obvious pollution on a detection system is produced after sample injection is carried out for multiple times, sensitivities of instrument and equipment are consistent, and a detection limit is constant; and peak height is not reduced and peak shape is constant after the sample injection is carried out for multiple times even if residues of organophosphorus pesticides, such as methamidophos, acephate, moncrotophos and omethoate with strong polarity, are determined. The extraction and purification method for detecting organophosphorus pesticide residues in fruits and vegetables has a good application prospect in the technical field of pesticide residue determination.

The invention relates to the field of environmental protection, and relates to degradation of organic waste materials by biological materials and / or photocatalytic materials. A microbial strain is oneor more selected from bacillus subtilis, bacillus megaterium, and aspergillus sydowii, wherein the bacillus subtilis is preferably bacillus subtilis with a preservation number of CGMCC NO.1.9083, thebacillus megaterium is preferably bacillus megaterium with a preservation number of CGMCC NO.1.16094; and the aspergillus sydowii is preferably aspergillus sydowii with a preservation number of CGMCCNO.3.13937. According to a method disclosed by the invention, photocatalyst nano titanium dioxide is used to cooperate with the above microorganisms, and the degradation agent has a very good effecton an application of degradation of pesticides, especially degradation of methamidophos, methyl parathion and triazophos.

The invention relates to an insecticide composition. The composition contains active ingredients and is characterized in that the active ingredients contain indoxacarb and an organophosphorus insecticide, wherein the organophosphorus insecticide is selected from at least one of acephate, fenitrothion and malathion, and the weight ratio of indoxacarb to the organophosphorus insecticide is 1: (0.01-90). The invention further relates to an insecticide prepared from the insecticide composition and application of the insecticide in the prevention and control of one or more plant pests. Compared with single-ingredient indoxacarb or organophosphorus insecticide, the insecticide composition and the insecticide, disclosed by the invention, have a synergized action, and the prevention and control effect can be improved; the insecticide duration is long; due to non-single active ingredients, the insecticide resistance is difficult to produce; and multiple different species of pests occurring in a mixed manner can be prevented and controlled, so that the dosage can be reduced, the cost is saved, and the pollution to the environment is reduced.

The invention discloses a tea planting insecticide which is prepared from the following raw materials in parts by weight: 2.5-3.9 parts of bifenthrin emulsifiable concentrate, 1.3-2.6 parts of methamidophos, 0.3-1.5 parts of veratrine, 2.5-4 parts of cinnamon oil, 5-8 parts of eudesmol, 5-10 parts of allyl methanol and 0.5-1.7 parts of nonyl phenol polyoxyethylene ether. The insecticide disclosed by the invention has high content of insecticidal active components, is not easily decomposed under the effect of sunlight, and has long half-life period; compared with other insecticidal active substances in the existing insecticidal plant, the half-life period is prolonged, the effective rate on various crops is relatively high, residues are avoided, and little harm is caused to human bodies.

The invention relates to a molecular imprinting fluorescent microsphere array detection card and application thereof. A fluorescent molecular imprinting microsphere array is adhered and fixed in a hard card to obtain the molecular imprinting fluorescent microsphere array detection card. The molecular imprinting fluorescent microsphere array detection card disclosed by the invention is high in recognition ability, high in adsorbing capacity, short in adsorption time, high in fluorescence intensity and stable, and the defects that the pretreatment is complicated and the sensitivity is low during the traditional acephate detection are overcome; ordered arrangement of the microsphere array is favorable for full contact between imprinting microspheres and targets, the defects that the microspheres are settled in a solution and the fluorescence intensity is influenced are overcome, an accurate, sensitive and rapid novel method is provided for detecting acephate pesticide residues, and a certain reference is provided for developing a detection technology for other types of pesticide residues.

The invention relates to a preparation method of night-blooming cereus nutrient fertilizer. The nutrient fertilizer is composed of the components in percentage by weight: pine needle powder, bulbus fritillariae cirrhosae powder, spatholobus stem powder, bean cake powder, bone meal, ferrous sulfate, carapace powder, peanut stem powder, dry pig manure, sesame straw powder, bean straw powder, wheat bran, calcium superphosphate, triadimefon, Bordeaux mixture, methamidophos, anilazine and trichlorfon. Due to various nutrients contained in the nutrient fertilizer, the grown night-blooming cereus is full, thick and tender in leaves, dense in growth, strong in growing ability, good light receiving, magnificent in crowns, and excellent in landscape effect, thus achieving the purpose of the invention.

The invention provides a method for determining the residual quantity of pesticide enantiomers in tea leaves. The determination method comprises the following steps: 1, providing a tea leaf raw material containing residual methamidophos and / or derivatives thereof; 2, extracting the methamidophos and / or derivatives thereof in the tea leaf raw material in step 1, and removing impurities except the methamidophos and / or derivatives thereof; 3, carrying out chromatographic separation on the obtained impurity-removed methamidophos and / or derivative extract to separate the enantiomers of the methamidophos and / or derivatives thereof; and 4, carrying out mass spectrometric detection on the separated enantiomers obtained in step 3 to determine the content of every enantiomer. The determination method can split single monomers or multiple compound enantiomers simultaneously, the resolution of the obtained enantiomers is greater than 1.5, and the time consumed in the detection process is short.

The invention relates to the field of environmental protection, and relates to degradation of organic waste by using biological materials and / or photocatalytic materials. Microbial strains are selected from one or more of Bacillus subtilis, Bacillus megaterium and Aspergillus sydowii, wherein Bacillus subtilis with a preservation number of CGMCC No.1.9083 is preferably selected for the Bacillus subtilis, Bacillus megaterium with a preservation number of CGMCC No.1.16094 is preferably selected for the Bacillus megaterium, and Aspergillus sydowii with a preservation number of CGMCC No.3.13937 ispreferably selected. A photocatalyst nano-titanium dioxide is adopted to cooperate with the microorganisms, a very good result is achieved in degradation of pesticide, especially in degradation application of methamidophos, methyl parathion and triazophos.

The invention relates to a water emulsion used for controlling cnaphalocrocis medinalis, and pertains to the technical field of pesticides. The water emulsion is composed of the following components by weight percentage: 10 to 40 percent of chlorpyrifos, 0.2 to 5 percent of emamectin benzoate, 5 to 15 percent of emulsity agent, 1 to 10 percent of antifreezing agent, 10 to 30 percent of solvent and water for the rest supplement. Compared with the existing agents for controlling cnaphalocrocis medinalis, the water emulsion has the following advantages that: 1. as alkylbenzene sulfonate metal salt is taken as the emulsity agent, the decomposition of the emamectin benzoate in the water can be retarded and the pesticide application effect is improved; 2. the water emulsion has obvious synergy to the rice fulgorid; 3. the water emulsion can replace riskiest pesticides (acephatemet and the like), reduce the dosage and the usage amount of the organic solvent, and reduce the environment pollution and the farm product remain; 4. the water emulsion can retard the drug resistance of the cnaphalocrocis medinalis and improve the desinsection speed.

The invention belongs to the technical field of chemical prevention and control of pests, in particular to a compound pesticide containing etofenprox and pymetrozine, which is used for preventing and controlling rice planthopper. The effective components of the pesticide are etofenprox and pymetrozine, and the weight ratio of the two components in the pesticide is 1:1 to 1:16. Compared with the common pesticide of rice planthopper, the pesticide of the invention has the following advantages that: 1, compared with the single preparation, the compound pesticide has obvious synergetic effect on the rice planthopper and can obviously improve the preventing-controlling effect; 2, the compound pesticide can replace highly poisonous pesticides(methamidophos and the like), the consumption of the pesticide is reduced, and the environmental pollution and the residue of pesticides are reduced; 3, the compound pesticide can delay the drug resistance of the rice planthopper on the single pesticide; and 4, the compound pesticide is quick in disinfection speed and long in duration, and compared with the single pesticide, the compound pesticide can lower cost.

The invention relates to a preparation method of sorghum high yield fertilizer which comprises the following components according to the weight percent: 8-16 of cotton seed hull, 10-16 of compound fertilizer, 18-37 of bean cake, 18-25 of phosphate fertilizer, 6-10 of vinasse meal, 4-10 of monopotassium phosphate, 4-9 of carbamide, 1-2 of boron trace element, 0.5-1 of endosulfan, 0.5-1 of methamidophos, 0.5-1 of brown sugar and 0.5-1 of paclobutrazol. The preparation method comprises the following steps: combining the cotton seed hull, the compound fertilizer, the bean cake, the phosphate fertilizer, the vinasse meal, the monopotassium phosphate, the carbamide and the boron trace element together according to the proportion, placing the same into a grinder to be ground into a mixture with the granule of 120 mesh; taking out the mixture and then placing the mixture into a mixing machine to be mixed for 35min; taking out the mixture; adding the endosulfan, the methamidophos, the brown sugar and the paclobutrazol to the mixture and uniformly mixing the same with the mixture, and then placing the new mixture into the mixing machine to be mixed for 10min, taking out the mixture; and moulding the mixture by a moulding machine into a cylindrical fertilizer column which has the weight of 150 g, the height of 6 cm and the width of 5 cm and is compressed to be not easy to break when being held by hand.

The invention discloses an aptamer Met-G02 specifically combined with methamidophos. The aptamer Met-G02 is screened by an SELEX technology. The aptamer is single stranded DNA and is prepared from 82nucleotides, a nucleotide sequence of the aptamer is shown as SEQ ID NO:1, and a secondary structure of the aptamer contains a protruded ring and a stem; furthermore, the aptamer has a G-quadruplex structure, and the Met-G02 gibbs free energy DG is equal to -15.21. A series of character assessments on aptamer specificity, affinity, flexibility and the like are performed based on enzyme linked oligonucleotide absorption measurement, and a dissociation constant Kd of the Met-G02 is shown to be equal to 11.77+ / -2.07 nM; furthermore, the aptamer can be specifically combined with the methamidophos;thus, the aptamer has the advantages of high specificity, high affinity and quick and flexible application to methamidophos detection.

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.

The invention belongs to the technical field of chemical control for pests, and relates to a compound pesticide with silafluofen for controlling rice planthoppers. The active ingredients of the compound pesticide with the silafluofen comprise the silafluofen and pymetrozine, wherein, the weight ratio of the two components in the compound pesticide is 1:1 to 1:16. Compared with a common rice planthopper pesticide, the compound pesticide has the following advantages: (1) compared with a single preparation, the compound pesticide has an obvious synergistic effect on rice planthoppers and can obviously improve control effect; (2) the compound pesticide can replace high-toxicity pesticides (for example, methamidophos, and the like), reduces the amount of the pesticide to be used, and lowers environmental pollution and residue in agricultural products; (3) the compound pesticide can prolong the drug resistance of the rice planthoppers to the single pesticide; and (4) the compound pesticide is quick in desinsection speed and long in effect lasting period, and can reduce cost compared with the single pesticide.