34 results about "Methidathion" patented technology

The invention relates to an insecticide composition. The composition contains active ingredients and is characterized in that the active ingredients contain thiamethoxam and methidathion, wherein the weight ratio of thiamethoxam to methidathion is 1: (0.01-90). The invention further relates to an insecticide prepared from the insecticide composition. A dosage form of the insecticide is cream, water emulsion, micro-emulsion, water suspension, oil suspension, microcapsule suspension, wettable powder, water dispersible granule, soluble powder or soluble granule. The invention further relates to application of the insecticide in the prevention and control of one or more plant pests, such as scale insects, arrowhead scales, leafhoppers, thrips, aphid, white flies, mirid bugs, striped flea-beetles, leaf miners and spiny white flies. Compared with single-ingredient thiamethoxam or methidathion, the insecticide composition and the insecticide, disclosed by the invention, have a synergized action, and the prevention and control effect can be improved; 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.

The invention relates to an ultra-low volume liquid containing cyantraniliprole and organophosphorus insecticides. The liquid is compounded by cyantraniliprole and an active ingredient II into a chemical component, and other components are surfactants and solvents; the active ingredient II is any one of fenitrothion, trichlorfon, parathion methyl, isazofos, pyridaphethione,quintiofos, triazophos,colophonate, diazinon, phoxim, sumithion, pirimiphos methyl, fenthion, cyanophos, profenofos, chlorpyrifos, chlorpyrifos methyl, prothiofos, sulprofos, dimethoate, malathion, methidathion or isocarbophos. The ultra-low volume liquid has the advantages of convenience in processing, long duration, high work efficiency, low possibility of generating resistance to pesticides by a target, low environmental contamination, economy of drug and water, and improvement in pesticide utilization rate; and through ultra-low volume spraying, low volume spraying or ultra-low volume static spraying, a varietyof pests of rice, wheat, corn, vegetables, tobacco, tea trees, fruit trees and sugarcanes can be prevented and treated.

The invention discloses a drug preventing and curing tobacco aphids. The drug is characterized by being prepared from, by weight, 3-5 parts of acetamiprid, 2-6 parts of imidacloprid, 1-4 parts of tebuconazole, 5-9 parts of beta-cypermethrin, 4-7 parts of matrine, 1-3 parts of methidathion, 2-5 parts of nitenpyram, 4-7 parts of emamectin benzoate and 6-10 parts of pymetrozine. The drug has a special chemical and biological property, acts on aphid nerves, has a nerve obstruction effect on pest synapse receptors, has the four advantages of being efficient, low in toxicity, systematic and free from cross resistance, and is wide in insecticidal spectrum, efficient, low in toxicity, safe for environment and ecology, and safe to use, the persistent period of the pesticide effect is long, the fatality rate can still reach 100%, and pests are not prone to generating anti-bodies.

The invention relates to adsorption-degradation action of a sulfated graphene-titanium dioxide composite material which is capable of simultaneously carrying out adsorption and photocatalytic degradation on pesticide residue in water to five amide herbicides (alachlor, acetochlor, pretilachlor, metolachlor and butachlor) and seven organophosphorus insecticides (phorate, ethoprophos, pirimiphos-methyl, chlorpyrifos, malathion, fenthion, and methidathion) in water. The sulfated graphene-titanium dioxide composite material has the advantages that the sulfated graphene-titanium dioxide composite material has better adsorption effect on the amide herbicides and the organophosphorus insecticides, and meanwhile, has good photocatalytic degradation effect under the simulative sunlight; compared with the graphene-titanium dioxide composite material, the sulfated graphene-titanium dioxide composite material has better photocatalytic degradation effect on the amide herbicides and the organophosphorus insecticides.

The invention provides a degrading method of pesticide residues in ginseng oral liquid by utilizing radiation, and belongs to the technical field of pesticide residue degrading treatment in Chinese herbal medicines. The method is to treat the ginseng liquid containing multiple pesticides (methidathion, fonofos, diazinon, phosalone, imidacloprid, fenpropathrin totally six forbidden or restricted pesticides) by adopting an electronic accelerator which produces high-energy electrons in the radiation condition, so that the pesticides are degraded, wherein the energy of the electron accelerator is7.5MeV and the electron radiation dose is between 2 and 15kGy; and concentrations of the six pesticides are detected by an ultra-high performance liquid chromatography-tandem mass spectrometer after radiation so as to determine the degrading effect. By adopting the method, residues of the six pesticides in the ginseng oral liquid can be reduced or eliminated efficiently, quickly and safely, and the degrading rates of the six related pesticides are over 30 percent in 15kGy radiation, so that the limit standard of European Union and other countries can be achieved. The degrading method providesa good idea for degrading of pesticides in ginseng oral liquid, and has wide development prospect.

The invention discloses a methidathion Pickering emulsion in water, which is prepared by the following raw materials by weight: 0.1-1.0% of methidathion original drug, 1.0-8.0% of organic solvent, 0.05-0.5% of stabilizing agent, 5.0-12.0% of thickening agent, 0.1-0.5% of antifreeze and the balance water, wherein the sum of all components is 100%. The stabilizing agent is silica, clay, kaolin or montmorillonite. The methidathion Pickering emulsion in water utilizes a Pickering emulsion of the methidathion, uses water as a medium, uses SiO2 as a solid stabilizing agent of the emulsion, replaces a lot of poisonous and harmful organic solvents in a traditional methidathion missible oil preparation, and does not need usage of the emulsifier, thereby reducing toxicity, and implementing green and environmental protection.

The invention discloses a treatment agent for organic phosphorus contaminated soil. The treatment agent for the organic phosphorus contaminated soil comprises the following components: dry cow dung, pullulan, sodium caseinate, selenium-enriched capsicum stems, sodium tripolyphosphate, magnesium chloride, calcium sulfate crystal whiskers, desalinated sea sand, hydrated zinc borate, molybdenum disulfide, calcite, pineapple leaf powder, dry moss, and a silica sol. The treatment agent provided by the invention can effectively treat the organic phosphorus contaminated soil, and can obviously reducethe content of methyl parathion, phorate and methidathion in the soil; the preparation process is simple, production preparation is facilitated; and the use method is simple and not restricted by environmental conditions, and has better social value.

The invention discloses a corn planting method. The method comprises the steps that sandy loam field pieces which are loose in soil, deep in soil layer and good in drainage within the altitude ranges of 1600 m to 2500 m are selected; soil preparation and base fertilizer applying are carried out, and airing and seed soaking are carried out before sowing, wherein an adopted seed soaking agent is prepared from 5-15 parts of methidathion, 10-20 parts of organic solvent, 3-12 parts of penetrant, 0.5-6 parts of validamycin, 0.5-6 parts of rubican and 0.5-4 parts of heteroauxin; after sowing, field management is carried out, and harvesting is carried out after maturing; a compound fertilizer is dressed when 7-11 leaves grow on each corn seedling, wherein the compound fertilizer comprises pig manure, biogas slurry, fulvic acid, coal ash, seaweed, peat, realgar, mono potassium phosphate, carbamide, calcium magnesium phosphate and lime powder. Corn is promoted to grow and absorb needed nutrients, stress resistance is improved, the high yield and income increase are promoted, meanwhile, the content of microelements is increased, nutrient balance and corn absorption are promoted, and the method is extremely suitable for planting in Dali and other high-altitude regions.

The invention relates to a pest-killing and mite-killing composition containing tetronic acid and organophosphorus, wherein active ingredients of the pest-killing and mite-killing composition are spirodiclofen and any of organophosphorus pesticides such as profenofos, chlorpyrifos and methidathion, the mass portion ratio of the spirodiclofen to the organophosphorus pesticide is between 5 to 1 and 1 to 50, and the preferable ratio is between 2 to 1 and 1 to 19. The mixing of the spirodiclofen and the profenofos or the chlorpyrifos or the methidathion has apparent synergistic effect on pest mites, has good quick action and long lasting period, has control function on pests at the same time, is helpful to delay the drug resistance of the pest mites, and is mainly used for mite pest control of crops such as fruit trees, cotton, vegetables and so on.

The invention relates to an ultra low-volume liquid containing metaflumizone and an organophosphorus pesticide. The ultra low-volume liquid comprises a chemical component compounded of metaflumizone and an active ingredient II, and the balance at least one surfactant and at least one solvent, wherein the active ingredient II is any one of fenitrothion, trichlorfon, methyl parathion, isazofos, pyridafenthion, quinalphos, triazophos, fosthiazate, diazinon, phoxim, fenitrothion, pirimiphos-methyl, fenthion, cyanophos, profenofos, chlorpyrifos, chlorpyrifos-methyl, prothiofos, sulprofos, dimethoate, malathion, methidathion and isocarbophos. The ultra low-volume liquid is convenient for processing, has a long duration of efficacy and high efficacy, does not cause pesticide resistance of targets easily, produces low pollution on the environment, saves pesticides and water, improves a pesticide utilization rate, and realizes control of insect pests damaging paddy, wheat, corn, vegetables, tobacco, tea trees, fruit trees and sugarcane through ultra low-volume spraying, low-volume spraying or ultra low-volume electrostatic spraying.

The invention relates to a method for determining pesticide residues, in particular to a method for detecting organic phosphorus pesticide residues in wine. A sample pretreatment method for liquid-liquid direct extraction is established, in the process of sample pretreatment, the method is simple and rapid, reagents are saved, the cost is low, environmental protection is facilitated, and sensitivity and accuracy both meet the requirements of pesticide residue analysis. The method can be used for performing the sample pretreatment on daily detection and analysis of nine kinds of organic phosphorus pesticide residues of dichlorvos, ethoprophos, phorate, methyl parathion, chlorpyrifos, fenthion, methidathion, triazophos and phosalone in wine, the nine kinds of organic phosphorus pesticide residues after the sample pretreatment are detected by a gas chromatography-mass spectrometry, the detection results are accurate, the interference was small, and high social and economic benefits are achieved.

The invention belongs to the technical field of pesticide compounding, and concretely relates to a cyhalothrin-containing missible oil and its application. The effective components of the cyhalothrin-containing missible oil comprise cyhalothrin and methidathion, wherein a weight ratio of methidathion to cyhalothrin is 20:1-1:1. The cyhalothrin-containing missible oil has a good prevention and control effect especially on potato beetle under the synergistic effect of the above components.

The invention discloses a method for detecting residual methidathion in a ripe orange. The method for detecting residual methidathion in the ripe orange comprises the following steps: (1) dividing a ripe orange into an orange peel part and a pulp part, cutting the orange peel into pieces, and squeezing pulp with a juice extractor to obtain juice for later use; (2) respectively putting the orange peel and pulp into conical flasks, respectively adding acetonitrile water mixed liquor, and carrying out vibrating extraction for 50-70 minutes; respectively carrying out suction filtration to obtain clear liquids; concentrating the clear liquids respectively, and realizing constant volume being 10ml again by adopting water, so as to obtain an orange peel sample and a pulp sample for later use; (3) putting neutral aluminium oxide powder into a muffle furnace, activating for 4 hours at the temperature of 680 DEG C, packing, firstly passing a column with 20ml acetonitrile, loading the samples, firstly activating a small column with 10ml mixed liquor of acetonitrile and water in a volume ratio of 1:1, then leaching with 20ml acetonitrile, collecting leacheate, carrying out rotary evaporation until volume of the leacheate is 1ml, blow-drying with nitrogen, realizing constant volume being 5ml by adopting acetone, and making preparation for detection; (4) detecting by adopting a gas chromatography.

The invention belongs to the technical field of pesticide compounding, and particularly relates to theta-cypermethrin and methidathion containing suspoemulsion and an application thereof. The effective components of the suspoemulsion are theta-cypermethrin and methidathion, wherein the weight ratio of the methidathion to the theta-cypermethrin is 1:1-20:1. The theta-cypermethrin and methidathion containing suspoemulsion can be used for relieving the present pest resistance to insecticide to the greatest degree, thus the dosage of pesticide is reduced, and the influence on environments is also mitigated. The theta-cypermethrin and methidathion containing suspoemulsion is in line with the green and environmental protection trend of future society and has the optimal crop protection effect.