285 results about "Deltamethrin" patented technology

The invention provides a method for evaluating the rice planthopper-resistant property of rice. The method includes the steps that: (1) a nylon net greenhouse is constructed; (2) rice varieties, which include a rice variety to be tested, a pest-resistant check variety and a pest-susceptible variety, are planted in the greenhouse; and the pest-susceptible variety is planted around each variety to serve as rice planthopper-inducing rows; (3) the dosage of nitrogenous fertilizer is 200kg / ha to 250kg / ha; (4) at the early tillering stage of all the varieties, 2.5 percent of deltamethrin emulsifiable concentrate or 20 percent of triazophos emulsifiable concentrate is used for killing all pests and natural enemies in the net; (5) 10 days after the step 4, adult rice planthoppers are put on the pest-susceptible check variety (TN1) planted around the rice variety to be tested, 5 to 10 pairs per clump, and are freely and naturally propagated and randomly transferred to the variety to be tested; (6) after the step 5, when all of the pest-susceptible check variety in the test field dies, the resistance of each variety is evaluated, wherein the rice variety to be tested has high resistance when the death rate of the rice variety to be tested is less than 10 percent, pest resistance when the death rate is 11 percent to 30 percent, medium resistance when the death rate is 31 percent to 50 percent, medium susceptibility when the death rate is 51 percent to 70 percent, and pest susceptibility when the death rate is higher than 70 percent. The method has the advantages of simplicity and high operability, and accords with production reality.

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

The invention discloses an insecticide for tomatoes. The insecticide comprises the following components in parts by weight: 12-13 parts of pseudomonas powder, 8-10 parts of ammonium dihydrogen phosphate, 6-8 parts of deltamethrin, 13-16 parts of tetramethrin, 0.15-0.18 part of green muscardine fungus powder, 1.8-2.3 parts of veratrine, 2-2.3 parts of toosedarin, 3-3.3 parts of C30H45O5, 2-2.3 parts of saponin nicotine, 2.4-3.0 parts of veratrine, 1.9-2.3 parts of phage powder, 2.6-3.3 parts of rhodococcus powder, 12-18 parts of nicotine, 19-23 parts of tripterygium wilfordii, 15-20 parts of agrimonia pilosa, 3-5 parts of stellera chamaejasme, 7-10 parts of Chinaberry fruit, 1.2-1.6 parts of bacillus thuringiensis powder, 16-23 parts of Chinaberry bark, 19-25 parts of leech, 14-19 parts of wild chrysanthemum, and 100-200 parts of water.

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

The invention discloses deoxyribonucleic acid (DNA) of novel esterase. The nucleotide sequence of the DNA is shown as SEQ ID NO.1, and the amino acid sequence of the DNA is shown as SEQ ID NO.3. The invention also discloses an expression vector which contains the DNA of the novel esterase, recombinant esterase and the application of the recombinant esterase to the degradation of pyrethroid pesticide residues. The novel esterase and the recombinant esterase have efficient soluble expression in a bacillus coli expression system, and the recombinant esterase has efficient degrading effects on cyhalothrin, cypermethrin, fenvalerate, deltamethrin and the like.

The pesticide composition containing tebufenozide includes tebufenozide as the first active component and one kind of the second active component selected from monosultap, bisultap, triazophos, chlorpyrifos, trichlorfon, phoxim and other five kinds of pesticides. The present invention has reasonable component, low use, cost, and high pesticidal effect higher than the accumulation of its components.

The invention relates to jujube tree branch cuttage reproduction pretreatment liquid. The jujube tree branch cuttage reproduction pretreatment liquid consists of the following raw materials in parts by weight: alpha-naphthylacetic acid, indoleacetic acid, rooting power, wicker leaching agent, washing wastewater, sodium nitrophenolate, p-chlorophenoxyacetic acid, a potassium permanganate solution, copper hydroxide, deltamethrin and ammonium phosphate. The pretreatment liquid has remarkable effects on the aspects of branch differentiation and rooting, root hair growth, sterilization and deinsectization as well as nutrition supply. On the basis of scientific experiments, the raw material proportion and dosage are controlled, so that the cuttage reproduction survive rate can be effectively increased.

The invention discloses an agricultural insecticide which comprises the following components in parts by weight: 16-30 parts of permethrin, 18-20 parts of ammonium dihydrogen phosphate, 16-18 parts of deltamethrin, 10-12 parts of tetramethrin, 0.05-0.08 part of green muscardine fungus power, 0.06-0.08 part of phage powder, 0.2-0.6 part of bacillus thuringiensis powder, 2-6 parts of piper nigrum, 18-23 parts of radix stemonae, 2-7 parts of Szechwan Chinaberry fruit, 8-13 parts of camphor, 3-9 parts of turpentine, 1-13 parts of sophocarpidine, 20-26 parts of cordate houttuynia, and 100 parts of water. The agricultural insecticide is a novel pesticide which is efficient, targeted, environment-friendly, pollution-free and nuisanceless, avoids secondary hazard toxicity, has no residues, and keeps ecological balance, is an important guarantee for realizing ecological agriculture, green ecological agriculture, and green enterprises, and has wide prospect.

The invention relates to a prevention and control method for tobacco aphids. The prevention and control method comprises the following steps: firstly, agricultural prevention and control; secondly, ecological management; thirdly, biological control; fourthly, biological prevention and control; fifthly, physical prevention and control; and sixthly, chemical prevention and control. A Aphidius gifuensis Ashmaed breeding biological control method is adopted for releasing and controlling the tobacco aphids in tobacco fields, the biological agent of 200 g / l imidacloprid wettable solution is adopted and 4000 times of water is added for mist spraying on the front and back faces of tobacco leaves, and a solution formed by diluting the chemical agent of 25 g / l deltamethrin missible oil by 1500 times is adopted for performing mist spraying on the tobacco aphids, so that the average incident rate of the tobacco aphids is reduced, the yield is increased, the tobacco level is obviously improved, and a good economic benefit is achieved.

The invention discloses a method of transplanting a camphor tree. The technical solution thereof has the following key points: the method comprises the process of preparation before transplanting, digging the seedlings, trimming before transplanting, seedling transportation, digging planting holes, sterilization and insecticidal treatment on the planting holes, transplanting, management after transplanting, and spraying of mixed thiophanate and deltamethrin in one week after the transplanting. A straw rope can maintain sufficient water of the seedlings in the seedling digging process, thereby avoiding the problem of dry roots due to lack of water in the transportation process; the seedlings can be protected well, and then the survival rate after transplanting is high.

The invention relates to a long-effective insect prevention fiber which is characterized by being prepared by using polyolefin resin as a base material, and adding the following assistant materials accounting for the weight percentage of the base material into the base material: 0.001-10 percent of melamine resin, 0.01-2 percent of permethrin and 0.01-0.5 percent of deltamethrin or 0.01-1.5 percent of cyhalothrin. The invention also discloses a preparation method of the long-effective insect prevention fiber and a long-effective insect prevention net. The long-effective insect prevention fiber or the insect prevention net has the characteristics of long effective time, low cost and the like. The insect prevention fiber not only can effectively prevent and dispel insects, but also can prevent insecticides from being in direct contact with crops. Aiming at the characteristic of outdoor application, the insect prevention fiber sufficiently extends the seepage of pyrethrin from the inner part of the fiber, reduces loss due to rain pouring and vaporization, and increases the effective period of the product. The insect prevention fiber is mainly applied to prevention nets for production in agriculture, forest industry and animal industry, namely insect prevention nets for agricultural big-arch shelters, insect prevention nets for trees and insect prevention nets for animal industry.

The invention discloses an application of an esterase gene est816 and a recombinant esterase thereof in degrading pyrethroid pesticides. Specifically, the invention relates to heterologous expression of esterase gene est816 and a recombinant esterase thereof in degrading pyrethroid pesticides. A recombinant esterase Est816 is constructed via both an Escherichia coli expression system and a Pichia pastoris expression system, has efficient soluble expression in two expression systems, and has good thermal stability and acid and alkali resistance. The recombinant esterase est816 has a strong degradation effect on pyrethroid pesticides (such as cyhalothrin, cypermethrin, fenvalerate, deltamethrin, and so on), and the degradation rate is up to 90% or higher. Therefore, the esterase gene est816 and the recombinant esterase Est816 have broad application prospects in removing residual pyrethroid pesticides.

The invention discloses a modified anti-pest-biting polyvinyl chloride drip irrigation belt applied to the field of agricultural water-saving irrigation facilities. The modified anti-pest-biting polyvinyl chloride drip irrigation belt is prepared from, by mass, 0.75-1.5 parts of carbon black, 15-35 parts of plasticizer, 0.5-2 parts of lubricating agents, 0.3-3 parts of processing aids, 0.5-2 parts of heat stabilizers, 10-25 parts of calcium carbonate (CaCO3)10, 0.05-0.1 part of deltamethrin and 60-75 parts of polyvinyl chloride. According to the modified anti-pest-biting polyvinyl chloride drip irrigation belt, by adding the deltamethrin, the insecticidal spectrum is wide, the effect is achieved on multiple pests such as lepidoptera pests, orthoptera pests, thysanoptera pests, hemiptera pests, diptera pests and coleopteran pests, and therefore the modified polyvinyl chloride drip irrigation belt has the excellent comprehensive performance; compared with a common polyvinyl chloride drip irrigation belt, the modified anti-pest-biting polyvinyl chloride drip irrigation belt has the advantages that pest biting is effectively prevented, the service life of the drip irrigation belt is guaranteed, and the labor cost of pesticide spraying in agricultural planting is lowered.

The invention relates to a fast test method of pyrethroid pesticide residue containing cyan, which is characterized in that: after extracting solvent, decomposing pyrethroid pesticide containing cyan into a compound containing cyanogen; releasing the compound with gas in a gas producing device, absorbing with absorbing solvent, reacting with color reagent so that the solution turns blue; the higher the content of deltamethrin pesticide, the blue color is darker; and after directly colorating the trace deltamethrin pesticide containing cyan, and realizing the fast testing to the pyrethroid pesticide residue containing cyan in the product by comparing with a 'colourimetric card of pyrethroid pesticide residue containing cyan'. The invention carries out qualitative and semi-quantitative testing to the pyrethroid pesticide residue containing cyan through the standard colourimetric card, has the advantages of convenient and fast operation steps and low cost, and is easy to use in on-site fast testing equipment.

The invention discloses stenotrophomonas maltophilia XQ08 efficiently degrading deltamethrin and application thereof. The strain stenotrophomonas maltophilia XQ08 is preserved in China Center for Type Culture Collection (CCTCC) on December 8th, 2015 at the address of Wuhan University in Wuhan, China and with the preservation number of CCTCC M 2015726. The Bacillus cereus stenotrophomonas maltophilia XQ08 provided by the invention has the advantage that the degradation rate on deltamethrin (50.0mg / L) in an inorganic salt culture medium after 5 days reaches 67.04%, so that the strain can efficiently degrade deltamethrin and can effectively restore deltamethrin-polluted soil and water, the excessive pesticide residue problem in production of agricultural products and environmental pollution problem are solved and ecological environment and human health are protected.

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 discloses a pesticidal main agent by compounding destruxins of Metarrhizium anisopliae and decamethrin. The main agent is a mixture of the destruxins of Metarrhizium anisopliae and the decamethrin; and the mass ratio of the destruxins of Metarrhizium anisopliae to the decamethrin is 1-9:9-1. The pesticidal main agent selects the the destruxins of Metarrhizium anisopliae and the decamethrin for compounding, and determines the optimal mixing ratio of both, so as to obtain obvious synergy and effectively solve the drugfastness problem of pests such as diamond back moth and prodenia litura. The pesticidal main agent has good desinsection effect and strong practical application and promotion, and has important significance of preventing and controlling the pests such as the diamond back moth and the prodenia litura; and the pesticide is environment-friendly.

The invention discloses a safe mothproofing agent comprising trimethyl norborneol, a cinnamyl alcohol analogue, deltamethrin and talcum powder which are mixed. The invention has the advantages of reasonable prescription, convenient preparation, low production cost and good mothproofing effect.

The invention discloses an insecticidal composition comprising spirotetramat and pyrethroid. The composition is mainly characterized in comprising an active component A, an active component B, and balance of auxiliary agents. The active component A is spirotetramat, and the active component B is any one of permethrin, lambda-cyhalothrin, fenvalerate, beta-cyfluthrin, deltamethrin, and fenpropathrin. A weight ratio of the active component A to the active component B is 60:1-1:60. The composition can be prepared into wettable powders, water-dispersible granules, suspensions, suspension emulsions, water emulsions, micro-emulsions, microcapsule suspensions, and microcapsule-microcapsule suspensions. The composition provided by the invention can control various pests, and has substantial synergetic effect and sustained-release effect. The composition is safe to human and animals, and has the advantages of no phytotoxicity and good environmental compatibility. The preparation has the advantages of enhanced adhesion, rain erosion resistance, long duration, and the like.

The invention discloses a method for preparing a pyrethroid pesticide polyclonal antibody. The invention is characterized in that the method comprises the following steps: (a) synthesizing an artificial antigen; (b) synthesizing a coated antigen; and (c) preparing the antibody. The antibody prepared by the method can identify hapten and macromolecular compounds having a hapten structure, and can realize cross identification of various dimethrin compounds such as permethrin, deltamethrin, cypermethrin and deltamethrin. In the invention, based on the common structural characteristics of several pyrethroid pesticides, a wide-spectrum antibody is designed and prepared, and a method for quickly screening and detecting various common pyrethroid pesticides can be established.

A stored-grain pest pesticide is characterized in that each component by the weight percentage is as follows: star anise oil 0.018-10.0, decamethrin 0.24-8.0, and the rest is carrier material. The inventive pest pesticide with the star anise oil and the decamethrin has obvious pest control effect on grain storage, and the pest control effect on the raw grain and seed storage of paddies, corns, beans, etc. is above 95%. The stored-grain pest pesticide has long lasting period without influence on the germination rate of the stored seeds. With the rich resources of raw materials, simple preparation technology, no waste pollution, convenient and safe usage, and low toxicity of products, the stored-grain pesticide residue meets the standard of WHO / FDA, which is further lower than the maximum residue limit in China.

The invention discloses a method for detecting deltamethrin in strawberries based on gold nanoparticle surface Raman enhancement. The method comprises the following steps: 1, uniformly mixing strawberries with a deltamethrin pesticide with acetonitrile and sodium chloride, and sequentially carrying out vortex oscillation and centrifugation so as to obtain supernate; 2, mixing anhydrous magnesium sulfate, propyl-ethylenediamine, C18 and graphitized carbon black with the supernate, and sequentially carrying out vortex oscillation, centrifugation and filtering so as to obtain a liquid to be tested; 3, preparing a gold nanoparticle sol substrate; 4, uniformly mixing the gold nanoparticle sol substrate, the liquid to be tested and a sodium chloride solution, and carrying out Raman spectrum acquisition; 5, according to equations, calculating residues of the deltamethrin pesticide in the strawberries. By adopting the deltamethrin pesticide residue detection method disclosed by the invention,a rapid, cheap, simple, convenient and accurate detection scheme is provided for pesticide residue detection.

The invention discloses a pesticide composition containing novaluron and a pyrethroid compound. The pesticide composition contains an active component A and an active component B, wherein the active component A is selected from novaluron; the active component B is selected from any one compound of deltamethrin and bifenthrin; and the ratio of the active component A to the active component B in part by weight is 1:60-60:1. The pesticide composition can control various pests, has an obvious synergistic effect, expands the insecticidal spectrum, has relatively high activity on cabbage worms, plutella xylostella, cotton bollworm, aphid, red spiders, carposina niponensis, tetranychus mites, lesser green leaf hopper and ectropis oblique on brassicaceous vegetables, cottons, apple trees and tea trees; the dosage of a pesticide is reduced; the residual quantity of the pesticide on crops is reduced; the pollution to environment is reduced; the pesticide composition is safe to people and animals; the environment compatibility is good; and drug resistance is not generated on pests.

An alstonia scholaris propagation method with big tree trunks cut comprises the following steps that a plant which grows strongly and is free of plant diseases and insect pests is selected as a propagation seed tree, and trunk cut treatment is carried out on the propagation seed tree; the root of a tree trunk is dipped in slurry with rooting powder solutions, the tree trunk is planted in soil, the embedding depth of the tree trunk is 20-40cm, water spraying and moisture preservation are carried out, high temperature and strong light irradiation are avoided, when young sprouts of a second round emerge, compound fertilizer is dressed one time, pesticides are sprayed one time every 7-10 days after budding to prevent leave eating injurious insect damage and insect gall parasitism, and 1000-time solutions of trichlorphon and 2000-time solutions of deltamethrin are sprayed alternately. According to the alstonia scholaris propagation method with the big tree trunks cut, the tree trunk of alstonia scholaris with the diameter at breast height of 30-40cm and the height of more than 20.0m can be used as propagation materials to obtain 6-7 alstonia scholaris afforestation trees reaching a certain specification, and the survival rate is more than 95.0%. Compared with seed propagation and cutting propagation, the cultivation period of the alstonia scholaris afforestation trees can be shortened to a large extent, and obvious economic benefits are achieved.

House dust mites may be combatted by using a netting structure against a house dust mite habitat such as a mattress or cushion. The surfaces of the fibres of the yarns from which the netting structure is made carry particles of pyrethroid, preferably permethrin or deltamethrin.

The invention discloses a pesticide for baby cabbage seedlings. The pesticide comprises the following components in parts by weight: 25-30 parts of celastrus angulatus, 20-30 parts of lambda-cyhalothrin, 18-26 parts of cinnamomum burmannii oil, 16-30 parts of permethrin, 16-18 parts of deltamethrin, 10-12 parts of tetramethrin, 6-8 parts of rotenone, 0.05-0.08 part of green muscardine fungus power, 0.06-0.08 part of bacteriophage power, 2-6 parts of pepper, 0.5-1 part of azadirachtin, 18-23 parts of radix stemonae, 2-7 parts of chinaberry fruit, 8-13 parts of camphor, 3-9 parts of turpentine, 1-13 parts of sophocarpidine, 20-26 parts of houttuynia cordata and 100-150 parts of water. The pesticide for baby cabbage seedlings provided by the invention is a novel pesticide which is high in efficiency, pertinence and environment friendliness, avoids secondary toxicity, residues and pollution, keeps ecological balance, and is nuisanceless, thereby being an important guarantee for achieving ecological agriculture, green ecological agriculture and green enterprises, and having a wide prospect.

The invention provides an insecticide composition which is composed of an active compound component and an auxiliary component, wherein the active compound component accounts for 1-70 wt% of the insecticide composition, and is compounded from a component A and a component B in a weight ratio of 1:50-50:1; the component A is a pyrethroid compound of which the structure satisfies the following formula; and the component B is selected from any one of high-efficiency cyhalothrin, bifenthrin, deltamethrin, fenpropathrin, cypermethrin, high-efficiency cypermethrin, cis-cypermethrin, fenvalerate or S-fenvalerate. By compounding, the insecticidal composition provided by the invention has certain synergistic action in application.