133results about How to "Good suspension rate" patented technology

The invention relates to a method for producing mellow concave-convex rod suspension. Wherein, it comprises mixing convex-concave rod clay, magnesia, sodium silicate, and macrogol, emerging, compressing, drying, grinding, and packing. The invention has low cost without using water in preparing casting coat, with suspension rate, non deposit, and high anti-adhesive property.

The present invention discloses one kind of alcohol base attapulgite casting paint powder, which is prepared with sodide modified attapulgite, high alumina bauxite, graphite, magnesia, sodium silicate and polyglycol in certain weight proportion, and through mixing, grinding in mill and packing. In production site of foundry, the alcohol base attapulgite casting paint powder and alcohol are compounded to form the casting paint with no need of water initiation, high suspension rate, good brushing performance, no precipitate, no caking, good flowability and high sand adhesion resistance.

The invention discloses propanil water dispersible granules. The propanil water dispersible granules comprise the following ingredients in percentage by weight: 10-80% of propanil, 1-10% of a dispersing agent, 1-12% of a wetting agent, 1-25% of a disintegrating agent, 1-10% of an adhesive, 1-5% of a chelating agent and the balance being a carrier. The propanil water dispersible granules disclosed by the invention are simple in preparation technology, low in cost, safe, environmentally-friendly, free of dust pollution, difficult to cause pesticide hazard, convenient to use and suitable for large-scale popularization and application, adapts to high-concentration wastewater and has the good shaping property and excellent prevention effect on grass families in paddy fields and dicotyledonous weeds such as barnyard grass, monochoria vaginalis, water fennels, crab grasses and green bristlegrass.

The present invention discloses one kind of water base attapulgite casting paint powder, which is prepared with sodide modified attapulgite, high alumina bauxite, graphite, magnesia, sodium silicate and carboxymethylcellulose sodium in certain weight proportion, and through mixing, grinding in mill and packing. In production site of foundry, the water base attapulgite casting paint powder and water are compounded to form the casting paint with high suspension rate, good brushing performance, high surface smoothness, no precipitate, no caking, good flowability, high sand adhesion resistance and high stability.

The invention provides a pyrazosulfuron-ethyl, clomazone and butachlor compound dispersible oil suspension concentrate and a preparation method thereof, relating to the technical field of control of weeds in direct sowing paddy fields. The pyrazosulfuron-ethyl, clomazone and butachlor compound dispersible oil suspension concentrate is prepared from 2 parts of pyrazosulfuron-ethyl, 8 parts of clomazone, 60 parts of butachlor, 2 parts of fatty alcohol-polyoxyethylene ether, 3 parts of styrylphenol polyoxyethylene ether, 2 parts of xanthan gum, 1 part of sodium benzoate, 2 parts of organic silicon and 20 parts of solvent oil by weight. The preparation method is characterized by pumping the raw materials into a preparation kettle, mixing and stirring the raw materials, then carrying out primary milling with a colloid mill, then finely milling with a sand mill, carrying out sampling analysis, and filtering, metering, packaging and warehousing after samples are qualified. The pyrazosulfuron-ethyl, clomazone and butachlor compound dispersible oil suspension concentrate achieves better control of annual grassy weeds, cyperaceous weeds and part of broadleaf weeds in the direct sowing paddy fields, and achieves united synergy of pyrazosulfuron-ethyl, clomazone and butachlor, thus achieving obvious synergistic effects; therefore mixing pyrazosulfuron-ethyl, clomazone and butachlor to control the annual grassy weeds, the cyperaceous weeds and part of the broadleaf weeds in the direct sowing paddy fields is feasible and is also necessary.

The invention discloses a weeding composition containing sulfentrazone and chlorimuron-ethyl and an application thereof. The sulfentrazone and the chlorimuron-ethyl serve as active ingredients of the composition. The weeding composition can effectively control and remove broadleaf weeds and gramineous weeds such as xanthium sibiricum, goosefoots and morning glory in a soybean filed and a peanut field, and the control effect is obviously higher than the control effect achieved by only using the sulfentrazone or the chlorimuron-ethyl. In addition, the user of the composition can improve the herbicide effect, reduce the herbicide use amount, save economical cost, greatly reduce the application amount of each active substance, reduce herbicide residues in the environment, meanwhile, can further delay weed herbicide resistance generation and prolong the herbicide service life and has important ecological significance and environmental protection significance.

The invention discloses an abamectin and etoxazole compound suspending agent and a preparation method of the abamectin and etoxazole compound suspending agent, which relate to the technical field of red spider prevention. The abamectin and etoxazole compound suspending agent is prepared from the following components in parts by weight: 3 parts of abamectin, 12 parts of etoxazole, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of cinnamenyl phenol polyoxyethylene ether, 0.3 part of xanthan gum, 0.3 part of sodium benzoate, 0.3 part of antifoaming agent and 78.1 parts of deionized water. The preparation method comprises the steps of sucking all materials in a preparation kettle, preliminarily grinding the raw materials through a colloid mill after mixing and stirring the raw materials, finely grinding the raw materials through a sand mill, carrying out sampling analysis, filtering after qualified grinding, metering, packaging and warehousing. According to the abamectin and etoxazole compound suspending agent disclosed by the invention, the insect killing and knocking speed is fast, the duration is longer, and the red spider prevention effect is better.

The invention discloses a chlorantraniliprole-emamectin benzoate suspending agent and a preparation method thereof. The chlorantraniliprole-emamectin benzoate suspending agent is mainly used for preventing and treating insect pests on crops. The effective components of the composition comprise 1-20% of chlorantraniliprole, 1-10% of emamectin benzoate, 3-6% of a dispersant, 0.5-3% of a lubricant, 0.1-1% of a stabilizer, 0.05-0.2% of a defoamer, 0.2-5% of a suspending agent, 3-5% of an antifreezing agent and the balance of water. The insecticidal compound suspending agent is a green and environment-friendly pesticide which is free from three wastes in production and convenient to use.

The invention discloses a florasulam suspension agent and a preparation method thereof. The florasulam suspension agent contains the ingredients in percentage by weight: 5% to 20% of florasulam, 1% to 8% of wetting dispersant, 1% to 10% of synergist, 3% to 6% of antifreezer, 1% to 3% of thickener, 0.1% to 1% of preservative, 0.1% to 1% of antifoamer and the balance of water. According to the preparation method of the florasulam suspension agent, disclosed by the invention, the antifoamer is added in batches, so that foam generated due to air admission during sanding is effectively eliminated. The florasulam suspension agent disclosed by the invention is environment-friendly and is high in suspension percentage, good in dispersity and good in stability, the preventive effect of florasulam on annual broadleaf weeds of winter wheat field is improved, and the preparation method is simple and convenient, so that industrial large-scale production is facilitated.

The invention discloses a suspending agent containing chlorantraniliprole and lambda-cyhalothrin. The suspending agent is mainly applied to control of insect pests on crops. The lambda-cyhalothrin is low in melting point, so that dosage form of the lambda-cyhalothrin at present is mainly emulsified after being dissolved, and is mainly missible oil, a microemulsion and an emulsion in water, but the three dosage forms contain benzene organic solvents, and are not environmental dosage forms in true sense. By adopting the suspending agent, the complex suspending agent of the chlorantraniliprole and the lambda-cyhalothrin is introduced, does not contain an organic solvent, does not contain carcinogenic, teratogenic or mutagenic agents, and is the environmental dosage form in true sense. The composition comprises the main effective components of 1-20% of chlorantraniliprole, 1-10% of lambda-cyhalothrin, 3-6% of dispersing agent, 1-2% of wetting agent, 1-2% of stabilizer, 0.1-0.2% of defoamer, 0.2-5% of suspending agent, 3-5% of antifreezing agent and the balance of water. The insecticidal compound suspending agent belongs to an environment-friendly pesticide, is free of three wastes in production, and is convenient to use.

The invention discloses a nicosulfuron, atrazine and halosulfuron-methyl compound dispersible oil suspending agent and a preparation method thereof, and relates to the technical field of prevention and treatment of corn field annual weeds. The suspending agent is prepared from the components in parts by weight: 2.5 parts of nicosulfuron, 20 parts of atrazine, 1.5 parts of halosulfuron-methyl, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of a defoaming agent, and 66.7 parts of deionized water. The preparation method comprises the steps: pumping the raw materials into a preparation kettle, mixing and stirring, then carrying out initial grinding by a colloid mill, carrying out fine grinding by a sand mill, sampling, analyzing, after being qualified, filtering, metering, packaging and warehousing. When the 24% nicosulfuron, atrazine and halosulfuron-methyl compound dispersible oil suspending agent is formed by mixing nicosulfuron, atrazine and halosulfuron-methyl in a ratio of 2.5 to 20 to 1.5, the acting range can be obviously synergized; however, for other preparations mixed in other ratios, the obvious synergistic acting range cannot be achieved.

The invention relates to a composite synergistic wetting agent and a preparation method thereof. The components comprise 30-50 % of tristyrylphenol ethoxylates phosphate; 20-30 % of maleic acid-acrylic acid copolymer sodium salt; 10-20 % of tristyrylphenol ethoxylates succinic acid monoester sodium sulfonate; and 10-20 % of propylene glycol block polyether. The composite synergistic wetting agenthas excellent wetting and dispersing performance, and the combination of the auxiliary agent components of the invention is adopted to provide surface energy for original drug particles, the particlesare wrapped to form steric hindrance, electrostatic repulsion and to destroy the hydrogen bond combination of the compound and water. The invention further provides the application of the composite synergistic wetting agent in pymetrozine and a composite aqueous suspending agent combined with pymetrozine and other original drugs (clothianidin), which has good universality for the original drug ofthe pymetrozine produced by different processes, and the obtained preparation agent has good stability.

The invention discloses a compound suspension seed coating agent composed of pyraclostrobin, thiamethoxam and rotaprol and a preparation method thereof, and relates to the technical field of insecticidal and fungicidal compositions for cotton crops. At least 5 parts of pyraclostrobin, 20 parts of thiamethoxam, 15 parts of ethoxylate, 3 parts of fatty alcohol polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 parts of xanthan gum, 0.5 parts of Sodium benzoate, 0.5 parts of defoamer and deionized water made up to 100 parts. The raw materials are pumped into the preparation tank for mixing and stirring, and then firstly ground by a colloid mill, then finely ground by a sand mill, sampled and analyzed, filtered, measured, packaged, and put into storage after passing the test. The present invention mixes the compounded 40% pyraclostrobin, thiamethoxam and wisterin compound suspension seed coating agent in a ratio of 5:20:15, which can play a significant synergistic role, while other The preparations that are mixed in proportion cannot reach the scope of obvious synergistic effect.

A composite chemical for killing oncomlania and schistosome is prepared from teniarene, wetting agent, suspending aid, carrier and water through proportional mixing and high-pressure homogenizing.

The invention relates to the technical field of controlling grape downy mildew and provides pyraclostrobin and metiram compound water dispersible granules and a preparation method thereof. The granules are made from 5 parts of pyraclostrobin, 55 parts of metiram, 6 parts of fatty alcohol sulfate salt, 3 parts of ammonium sulfate, 2 parts of polyethylene glycol, and 29 parts of kaolin. The preparation method includes: mixing the materials, pulverizing a mixture with an ultra-micro flow pulverizer to obtain wettable powder, adding the wettable powder into a fluidized bed drying granulator, allowing granulating in a fluidized bed via aqueous solution of adhesive, allowing drying in a drier, performing screening to obtain a product, performing sampling and analyzing, and metering, packaging and storing a qualified product. When the granules are 60%, the granules compounded by mixing the materials according to the ratio 1:11 has an evident synergistic range; all preparations in mixed use according to the other ratios are beyond the evident synergistic range; the granules are reasonable in design, effective in controlling grape downy mildew and have evident synergistic effect of pyraclostrobin and metiram.

A thifluzamide, amino-oligosaccharin and hexaconazole compound suspending agent and its preparation method relate to the field of pest control techniques in paddy fields. The compound suspending agent is prepared from the following ingredients, by weight, 5 parts of thifluzamide, 5 parts of amino-oligosaccharin, 10 parts of hexaconazole, 4.5 parts of fatty alcohol-polyoxyethylene ether, 7.5 parts of styrylphenol polyoxyethylene ether, 1 part of xanthan gum, 0.5 part of sodium benzoate, 1 part of organosilicon and 6.5 parts of solvent naphtha. The preparation method comprises the following steps: pumping raw materials into a preparation vessel, mixing and stirring, carrying out preliminary grinding by a colloid mill, carrying out fine grinding by a sand mill, carrying out sampling analysis, filtering after qualified, metering, packaging and warehousing. The thifluzamide, amino-oligosaccharin and hexaconazole compound suspending agent has a good effect of controlling rice sheath blight disease and rice blast. The synergistic effect of the three ingredients thifluzamide, amino-oligosaccharin and hexaconazole is realized, and an obvious synergetic effect is achieved. Meanwhile, the compound suspending agent has a double effect of prevention and treatment and has a long persistent period. According to the compound suspending agent, its bactericidal activity is performed mainly by inhibiting demethylation of sterol in pathogenic fungus so as to block biofilm formation.

The invention relates to the technical field of stem leaf weed killers applied to corn fields, in particular to a nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate. The nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate comprises, by weight, two parts of nicosulfuron, 20 parts of atrazine, 23 parts of 2,4-D isooctyl ester, three parts of fatty alcohol-polyoxyethylene ether, five parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of organosilicone and 45.7 part of miscella. In the preparation process, all the raw materials are sucked into a preparation kettle to be mixed and stirred, primary grinding is conducted on the mixture through a colloid mill, fine grinding is conducted through a sand mill, sampling analysis is conducted, and after a sample is qualified, filtering, measuring, packaging and warehousing are conducted. By the adoption of the nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate, the killing effect on grassy weeds such as crab grass and barnyard grass and broadleaf grass eclipta prostrate and piemarker is good, the type of function is basically the synergism function, the speed of taking effect on the grassy weeds such as crab grass and barnyard grass is increased, and the synergism function on the grassy weeds such as crab grass and barnyard grass is remarkable.

The invention relates to a suspending agent containing abamectin and fluopyram. The suspending agent is prepared from the following components in percentage by weight: 1 to 10 percent of abamectin, 1 to 10 percent of fluopyram, 1 to 8 percent of dispersing agent, 1 to 8 percent of wetting agent, 1 to 6 percent of antifreezing agent, 0.3 to 3 percent of thickening agent, 0.05 to 1 percent of defoaming agent, 0.05 to 2 percent of preservative and the balance of water. Wherein the dispersing agent is selected from a mixture of styrene, ethylene oxide segmented copolymer phosphate ester and soprophor SC; the wetting agent is selected from the group consisting of LUTENSOL TO 8. The suspending agent formula obtained by screening specific auxiliaries has excellent physicochemical properties such as suspension rate and stability through determination, which is beneficial to the shelf stability of pesticides, the utilization rate of the pesticides after application, the exertion of pesticide effects and other aspects. In addition, through biological assay, the suspending agent has an excellent prevention and treatment effect on cucumber root-knot nematode.

The invention relates to the technical field of pesticides, particularly to a bactericide composition containing pyraclostrobin and mancozeb, wherein the weight percentage of pyraclostrobin in the composition accounts for 3%-15% of the weight percentage of the bactericide composition, the weight percentage of mancozeb accounts for 20-75% of the weight percentage of the bactericide composition, andthe bactericide composition also comprises alkoxylated tallow alcohol.

The invention relates to a dispersible oil suspension agent containing metamifop and quinclorac. The dispersible oil suspension agent is composed of herbicide active ingredients, a dispersion medium,a surfactant, and an emulsifier. The dispersible oil suspension agent containing metamifop and quinclorac is prepared by a specific formula, can reduce a use amount of the pesticide active ingredients, improves prevention and treatment effects, is safe for crops, and is worthy of popularization and application.

The invention discloses a mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent and a preparation method thereof and relates to the technical field of control of weeds in a wheat field. The mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent is prepared from 3 parts of mesosulfuron, 21 parts of clodinafop-propargyl, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of defoamer and 66.7 parts of deionized water. The preparation method comprises the following steps of pumping the raw materials into a preparation reactor for mixing and stirring; primarily grinding the raw materials by a colloid mill, and then finely grinding by a sand grinder; sampling and analyzing; after the mixture is qualified, filtering, metering, packaging and warehousing. According to the mesosulfuron and clodinafop-propargyl compound dispersible oil suspending agent, when being prepared by mixing and compounding to be 24 percent according to the proportion of 1:7, an obvious synergistic effect range can be reached, which cannot be realized by preparations mixed according to other proportions.

The invention discloses a penoxsulam and metamifop compound dispersible oil suspension agent and a reparation method thereof, and relates to the technical field of annual weed control of rice fields of direct seeding cultivation. The penoxsulam and metamifop compound dispersible oil suspension agent is at least prepared from 2 parts of penoxsulam, 10 parts of metamifop, 4 parts of fatty alcohol-polyoxyethylene ether, 6 parts of styrylphenol polyoxyethylene ether, 1 part of xanthan gum, 1.5 parts of sodium benzoate, 1 part of organic silicon and the balance of solvent oil, wherein the total parts are 100 parts. The preparation method of the penoxsulam and metamifop compound dispersible oil suspension agent comprises the following steps of pumping the raw materials into a preparing kettle to mix and stir, and pre-grinding the raw materials through a colloid mill; performing fine grinding on the raw materials through a sand mill, performing sampling analysis, filtering after the raw materials are qualified, metering, packaging and warehousing. The 12% penoxsulam and metamifop compound dispersible oil suspension agent which is compounded by penoxsulam and metamifop in a proportion of 1 to 5 can achieve an obvious synergism range; and a preparation mixed in other proportions cannot reach the obvious synergism range.

The invention discloses 80% dimethomorph water dispersible granules and a preparation method thereof. The raw materials of the 80% dimethomorph water dispersible granules comprise, in percentage by mass, 80% of dimethomorph technical, 6%-10% of a lignin dispersing agent, 1%-5% of sodium dodecyl sulfate, 1%-6% of naphthalene sulfonate formaldehyde condensate and 0-5% of a disintegrating agent and 0-5% of kaolin, wherein the lignin dispersing agent is prepared from alkali lignin by improving the molecular weight and the carboxyl group content, the weight-average molecular weight of the lignin dispersing agent is larger than 15,000, the carboxyl group content is 3.2-4.0 mmol / g, the hydrophobicity is high, the 80% dimethomorph water dispersible granules can be efficiently adsorbed on the surfaces of pesticide granules and provide effective electrostatic repulsion and steric-hinerance effects, so that the dispersion stability of the dispersible granules is superior to that of ordinary sodium lignin sulfonate dispersing agents. Danger caused by an organic solvent in an emulsifiable solution is prevented, the defects of dust pollution of powder and the like are overcome, and the prepared dimethomorph water dispersible granules have good dispersity, high disintegration speed and high suspension rate.

The invention discloses a 45% 2-methyl-4-chloro isooctyl microcapsule suspension, and relates to the technical field of prevention and control of broadleaf weeds in wheat fields. The 45% 2-methyl-4-chloro isooctyl microcapsule suspension is prepared from 45 parts of 2-methyl-4-chloro isooctyl, 9 parts of nano white carbon black, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of defoamer, and 36.7 parts of deionized water. The 45% 2-methyl-4-chloro isooctyl microcapsule suspension has the advantages that the function of resisting hydrolyzing of a raw drug is realized, and the stability is obviously improved; under the actions of adsorption of the nano white carbon black and coating of an outer polymer material, the new preparation can control the release of the raw drug and reach the slow-releasing effect, so that the utilization rate of effective ingredients is realized, the damage to environment is decreased, and the like.

A prothioconazole and tebuconazole compound suspending agent and a preparing method thereof relate to the technical field of prevention and control of scab of wheat. The suspending agent is prepared from 20 parts of prothioconazole, 12 parts of tebuconazole, 3 parts of fatty alcohol-polyoxyethylene ether, 5 parts of cinnamenyl phenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of defoaming agent and 58.7 parts of deionized water. Raw materials are pumped into a preparing kettle and mixed by stirring, are primarily ground by a colloid mill, are then fine-ground by a sand mill, are subjected to sampling analysis, are filtered after being qualified, metered and packed and put in store. The 32% compound prothioconazole and tebuconazole compound suspending agent is mixed by using a proportion of 5:3, an obvious synergic action range is achieved, and a preparation mixed according to other proportions cannot achieve the obvious synergic action range.

The invention relates to a rotenone water dispersible granule and a preparation method thereof. The rotenone water dispersible granule comprises the following components in percentage by weight: 10 to 90% of powdery rotenone, preferably 65%; 1 to 4% of wetting agent, preferably 2.5%; 2 to 7% of dispersant, preferably 5%; 1 to 4% of binder, preferably 2%; 2 to 5% of disintegrating agent, preferably 3%; 2 to 5% of suspending agent, preferably 3%; 3 to 6% of stabilizing agent, preferably 4%; and a carrier being added to 100%. The shortages that the conventional granule can generate dusts, the heat storage decomposition rate is high, and the generation of precipitate and blocks during the storage process is easy are overcome. The dust drifting is little when the provided rotenone water dispersible granule is used and transported, the loss and environmental pollution are avoided; the content of effective components is high, the granule is convenient to package, the storage and transportation cost is saved; the stability in storage and transportation is high; the phenomenon of layering, precipitation, and agglomeration during storage and transportation is avoided; furthermore, the granule is user-friendly, and can be rapidly disintegrated by adding the granule into water; and the dispersibility and suspension percentage are good.

The invention provides a microbial source bactericide for preventing and treating plant diseases and a preparation method thereof, and belongs to the technical field of microbial pesticides. The preparation method of the microbial source bactericide comprises the following steps: performing slant culture on a biocontrol strain to obtain an activated strain; inoculating into a liquid culture mediumand culturing to obtain liquid seeds of each strain; transferring the liquid seeds of each strain into a solid-state fermentation culture medium containing red alga amino acid, carrying out fermentation culture, soaking in sterile water, and filtering to obtain fermentation liquor of each strain; and mixing the fermentation liquor, compounding with a carrier and an auxiliary agent, carrying out spray drying, and carrying out jet milling to obtain the microbial source bactericide. The microbial source bactericide prepared by the method has the advantages of good suspension rate, short wettingtime, strong bacteriostasis and obvious control effect on plant diseases.

The invention discloses a famoxadone and mancozeb compound water dispersible granule and a preparation method thereof, and relates to the technical field of the treatment of tomato early blight. The granule at least is prepared from 6.25 parts of famoxadone, 62.5 parts of mancozeb, 8 parts of calcium lignosulphonate, 4 parts of polycarboxylate, 3 parts of alkyl naphthalene sulfonate, 5 parts of ammonium sulfate, 2 parts of polyethylene glycol, and kaoline which complements 100 parts. The method comprises the following steps: mixing raw materials other than polyethylene glycol, crushing the raw materials into powder through an ultramicro airflow crusher, feeding the raw materials into a fluidized bed dry granulator, performing granulation in a fluidized bed at 50 to 70 DEG C through the polyethylene glycol, performing drying in a dryer, obtaining a product after screening, then performing sampling analysis, and performing metering, packaging and storage after the product is qualified. The granule has the advantages that a compounded famoxadone and mancozeb compound water dispersible granule which is 68.75 percent is mixed at a ratio of 1:10, an obvious synergism range can be realized, and preparations with other ratios cannot achieve the obvious synergism range.

The invention provides dinotefuran and monosultap compound wettable powder and a preparation method thereof, relating to the technical field of insecticides. The dinotefuran and monosultap compound wettable powder is prepared from the following components in parts by weight: 16 parts of dinotefuran, 64 parts of monosultap, 3 parts of primary alcohol ethoxylate, 3 parts of phenethylphenol polyoxyethylene polyoxypropylene ester and 14 parts of light-weight calcium carbonate. The preparation method comprises the following steps: mixing the raw materials; sequentially carrying out rough crushing and airflow crushing on the raw materials; sufficiently mixing the raw materials, sampling and analyzing, and metering after the product is qualified; and packaging and storing. The dinotefuran and monosultap compound wettable powder is suitable for preventing and treating ornamental flower thrips and rice-stem borers, and has a good pesticide effect, and has a very good popularization and application value in production. The dinotefuran and monosultap compound wettable powder is safe to flowers and rice under a testing dosage, has no phytotoxicity and basically has no influence on beneficial organisms including natural enemies and the like.