283 results about "Deltamethrin" patented technology

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 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 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 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 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 non-destructive detection method for pesticide residues in fruits and vegetables. Based on an SERS (surface enhanced Raman spectroscopy) technology, various pretreatment methods are adopted and a qualitative model and a quantitative model are built, thus realizing quick and non-destructive detection for the content of the pesticide residues in the fruits and vegetables. The method comprises the following steps: building a differential spectrum data quantitative model for the residual content of deltamethrin on the surface of spinach, and building spectral data quantitative and qualitative model capable of simultaneously detecting three pesticides, namely chlorpyrifos, imidacloprid and malathion, in apples. By the adoption of the high-sensitivity SERS technology, any complicated pretreatment step of preparation of a sample and the like is not needed; due to direct detection of the pesticide residues in the fruits and vegetables or unit-area indirect detection, quick, non-destructive and pollution-free detection for the pesticide residues on the overall surfaces of the fruits and vegetables can be well realized; furthermore, the method is practical and relatively high in accuracy, and can be applied to non-destructive detection and on-site detection for the pesticide residues in other fruits and vegetables.

The present invention discloses a sweet-potato high-yield planting method, which is characterized in that in the growth period of the vine of the sweet potato, the turning over of the vine is changed into lifting of the vine by hand, the vine of the sweet potato is lifted every ten to twenty days; the pyrethroid-type agriculture medicine is sprayed on the leaves and the vines of the sweet potato according to the rate of zero point seven to one point five thousandth every five to seven days. The pyrethroid-type agriculture medicine in the present invention can be the high-efficient cypermethrin or the deltamethrin. The present invention has simple operation and obvious yield increment, which can be applied to planting the sweet potato in all places.

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.

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.

The invention discloses a high-yield cultivation method for stingless wild peppers. The high-yield cultivation method comprises the following steps of (1) seedling nursery land selection, wherein a sheltered sunny slope, a sheltered semi-sunny slope or a sheltered ridge edge is selected, the land with abundant sunlight and deep and fertile soil layers is selected, the gradient is from 15 degrees to 30 degrees, and the land is built into a terraced field or prepared; (2) seed collection, wherein plump fruits fully matured are collected from a seed tree which is excellent in variety and free from diseases and insect pests and grows strongly, and then seeds are taken out from the fruits after the fruits are dried in the shade; (3) seedling cultivation, wherein a ditching and strip sowing mode is adopted, sowing is carried out according to the line spacing of 20-25 cm, the planting distance of 10-15 cm, and the ditch depth of 3-5 cm, and the planting number is 675-1650 plants/hm<2>; (4) fertilizer application, wherein 5-10 kg of farm manure, 0.5-0.15 kg of urea and 0.1-0.2 kg of phosphate fertilizer are applied for each seedling; (5) pest control, wherein in the second half of May and June, 2.5% of deltamethrin cream in 4000-fold liquid and omethoate in 2000-fold liquid are respectively used for spraying a crown once; (6) harvesting, wherein five to seven years after planting, harvesting is carried out in batches according to the maturity. According to the method, the yield of the stingless wild pepper is increased, and the high-quality stingless wild pepper can be produced.