267results about How to "Improve the effect of pest control" patented technology

The invention discloses a selenium-enriched rice planting method. The method includes the following steps of land selecting, field finishing, seed treatment, sowing and seedling raising, seedling transplant, fertilizer management in the later period, irrigation treatment and selenium-enriched rice harvesting. Before seedlings are transplanted, selenium-enriched base fertilizer in a complex state is applied in the rice field, and a certain selenium source is provided for rice; at the beginning of panicle emergence and flowering of rice and grouting, the selenium-enriched compound fertilizer is applied in the rice field again, the selenium-enriched fertilizer is evenly distributed around roots of the seedlings in the growth process, the selenium in a complex state from soil is absorbed by the roots of the plants and then enters the inner cycle systems of the plants and participates in synthesis of protein through the path from stems to leaves to flowers and fruits, and finally, the selenium in an ionic condition from soil is stored in the seeds in the form of selenoprotein. The selenium-enriched rice tastes good and is high in nutrient matter content, and the content of the selenium of the rice can reach over 0.2 mg / kg and meets the national selenium-enriched standard.

The invention discloses a super-hydrophobic surface with a moisture evacuating function and a preparation method thereof, wherein the super-hydrophobic surface is prepared from the following raw materials in parts by weight: 4-6 parts of silicon source, 4-5 parts of silizane and / or siloxane reagent, 50-80 parts of organic solvent, 6-10 parts of distilled water, 5-8 parts of thermosetting resin and / or organic silicon resin and 1-4 parts of curing agent. The preparation method comprises the following steps: adding the silicon source into the organic solvent; adding the distilled water and the silizane and / or siloxane reagent; adding the thermosetting resin and / or organic silicon resin; adding the curing agent; covering the treated substrate surface. The super-hydrophobic surface disclosed by the invention is common and easily available in raw materials and low in cost, and the preparation method is simple in process, simple in process and convenient to construct, and can be applied to various substrate surfaces. The contact angle of the obtained super-hydrophobic surface to water maximally can reach 160 degrees, and the rolling angle minimally can reach 2 degrees. The super-hydrophobic surface maintains a dry state to micro-moisture, and has good mechanical property and durability.

The invention discloses a planting method for organic rice in a mountainous area. The planting method includes the following steps of address selecting, field preparing, seed processing, sowing and seedling raising, seedling transplanting, insect pest treating, later-stage fertilizer managing, irrigation processing, harvesting and straw and rice husk processing. According to the planting method for the organic rice in the mountainous area, fertilizer and pesticides are not used in the planting process for preventing insect and diseases, a solar insect killing lamp is mainly adopted, and ducks, frogs and fishes are stocked in a paddy field. The solar insect killing lamp integrates energy conservation, environmental friendliness, safety, illumination and the function of inducing and killing mosquitoes and other insects, and the insect killing function is high. According to the planting method, ducks, carps and frogs are stocked into the field, not only insects are removed, and particularly, a biologic chain wherein mutualistic symbiosis of species and cyclic utilization are achieved is formed in the field. Duck manure is used for fertilizing the field so that fodder organisms are multiplied to be fed to ducks, and meanwhile the rice growth is also promoted. The organic rice is good in taste and high in nutrient content, and the organic rice in the mountainous area is full in seed and low in chaff and hull rate.

The invention relates to an insecticidal adhesive tape for agricultural trapping of harmful insects, which is particularly applied to trapping and killing alate harmful insects like aphid or whitefly, etc. The technical characteristics thereof are as following: two sides of a carrier film are coated with bonding agents, and one side is wound to a cylindrical product after being bonded with release paper having a size matched therewith, wherein, the bonding agent is aqua or solvent self-adhesive labelstock, the appearance color of the carrier film is yellow or orange, and the carrier film can be made of non-woven fabrics, paper or plastics. Due to simple structure, low manufacturing cost, no pollution and no public hazard, the invention is easy for being popularized and used extensively and has, in particular, excellent control efficiency on the alate harmful insects like the aphid or the whitefly, etc.

The invention discloses a solar bird-repellent pest killer and relates to the field of agricultural bird repellent and pest killing. The solar bird-repellent pest killer is used for solving the problems of the prior art that the bird-repellent measures are single in function, the comprehensive bird-repellent effect is inferior, the traditional pest killing measures can result in excessive pesticide residues on the agricultural products and the environment is polluted. The solar bird-repellent pest killer comprises a support rod, wherein the support rod is arranged on a base; an adjustable frequency-vibrancy pest-killing lamp, an electric control cabinet, a solar cell panel, a horn and a buzzer are arranged on the support rod; a wind power rotating bird repellent device is arranged at the top of the support rod; a pest collector is arranged at the bottom of the adjustable frequency-vibrancy pest-killing lamp; the solar cell panel is connected with a storage battery through a controller; the storage battery is used for supplying power to the system; an industrial control plate is used for controlling a voice module to drive the horn and the buzzer according to a bird approaching signal and an illumination signal; the industrial control plate is used for controlling the adjustable frequency-vibrancy pest-killing lamp to turn on / off according to the illumination signal; the wind power rotating bird repellent device comprises an impeller base, a connecting rod, a bowl-shaped reflector base and a concave-convex prism.

The invention relates to a breeding method for beautiful millettia root, and belongs to the field of agricultural breeding. The method specifically comprises the following steps: firstly, selecting a land suitable for growth of beautiful millettia root, applying fertilizer made by mixing self-made farmyard manure, tea seed bran, and quick lime in certain proportion, ploughing and bedding, wherein the self-made farmyard manure is made by mixed culture fermentation with beautiful millettia root deadwood, rice straws, sunflower stalks, peanut shells, animal bone meal, and pig, cow, and sheep manure, night soil as raw materials; then, selecting full beautiful millettia root seeds, after immersion disinfection by a disinfectant, mixing and dressing seeds with certain amount of a seed-dressing agent, and sowing; after that, controlling temperature and humidity of growing environment, spraying nutrient solution at fixed period, and culturing until seedlings emerge. The breeding method for beautiful millettia root is improvement on a conventional breeding method, and the method is simple in operation, low in production cost, and is scientific and rational, and seed germination speed is fast, and survival rate of seeds is high. The method is suitable to be used for large scale systematic breeding, and is good in practicality.

The invention relates to an emulsifiable concentrate pesticide containing 2.4% of oxymatrine, which belongs to the field of botanical pesticides. The pesticide mainly comprises 20% of sophora flavescens, 20% of castanopsis sclerophylla, 10% of tobacco, 5% of derris, 5% of tripterygium wilfordii, 20% of pterocarya stenoptera, 6% of hops, 4% of humulus scandens, and 10% of zanthoxylum schinifollum. The pesticide is able to kill the pests mainly in a contact killing manner and has characteristics of high decomposition speed, no residual, no pollution to the family environment and the like. The pesticide has obvious preventing and killing effect on multi-species of pests, such as Lepidoptera, Hemiptera, Coleoptera, Homoptera, Diptera and the like, in vegetables, fruit trees, flowers, forest trees, and field crops.

The invention provides an insect killer. The insect killer is different from the traditional insect killing method, and is an integrated, stereoscopic and a comprehensive insect killer which has effects of enticing, capturing, collecting, soaking, fermenting, extruding and internal circulating to generate microbial pesticide automatically. Moths are enticed to positions below a shooting mechanism by some odor according to the phototaxis of the moths, then are shot down, and are collected, soaked and extruded to liquid containing microbial pesticide to be fermented, so that lots of biopesticide is generated; the biopesticide is sprayed towards peripheral objective regions through a spraying device; and an all-directional insect killing effect is achieved. The insect killer does not pollute the environment, is economical and practical, and has a wide application prospect and a wide marketing prospect in the fields of agriculture, forestry, animal husbandry, cultivation industry and the like.

The invention relates to a preparation method of a pesticide slow controlled release nanometer composite material, in particular to a preparation method of a pesticide diuron slow controlled release nanometer composite material. The preparation method is characterized by comprising the following steps of: (1) dissolving diuron in water and dispersing by using ultrasound to obtain suspension containing the diuron; (2) loading the solution containing the diuron on hydroxyapatite nanometer granules by adopting a negative pressure and freeze drying method to obtain drug loading hydroxyapatite nanometer granules; (3) mixing and stirring sodium alga acid solution and hydroxyapatite nanometer granule suspension to obtain a sol system; dripping the sol system into a calcium ion cross-linking agent solution by an injector to obtain ion crosslinking gel granules of alginic acid / drug loading hydroxyapatite nanometer granules; washing by using distilled water, and drying in vacuum to obtain the micro-granular pesticide diuron slow controlled release nanometer composite material. The system can control the pesticide to slowly release and improve the pesticide effect. The invention solves the problem of pollution caused by too frequent pesticide use, too great dosage, low utilization rate of medicament, poor effect and medicament loss.

The invention relates to an insect-killing device. A solar insect-killing lamp comprises a solar assembly, a storage battery, an insect-killing lamp, a bottom box, a hollow lamp holder and a control switch, wherein the insect-killing lamp consists of an upper shell, a lower shell, a light source, a high-voltage net and a protecting net; the upper shell is connected with the lower shell through the high-voltage net and the protecting net; the high-voltage net and the protecting net are arranged at the peripheral of the light source sequentially; the control switch is connected with the storage battery and is arranged in the bottom box; the bottom end of the hollow lamp holder is fixed on the bottom box; the solar assembly is arranged on the top of the hollow lamp holder; the insect-killing lamp is arranged on the hollow lamp holder; a control circuit board communicated with the control switch is arranged in the upper shell of the insect-killing lamp; and the light source is a purple light-emitting diode (LED) lamp with wavelength of between 315 and 415 nm. The solar insect-killing lamp has the advantages of safety and convenience of use, good insect-killing effect, energy conservation, environmental friendliness and attractive overall appearance.

The invention discloses soybean special fertilizer, which is characterized in that total nutrients including nitrogen, phosphorus and potassium accounts for 42%-49% of fertilizer total weight, wherein the weight ratio of the nitrogen represented by N, the phosphorus represented by P2O5 and the potassium represented by K2O is N: P2O5: K2O:T=1:1.6-2.0:0.7-1.2:0.2-0.4. The T is microelement additive which at least contains sulphur (S), molybdenum (Mo) and boron (B) of microelements including S, Mo, manganese (Mn), zinc (Zn), B, copper (Cu) and magnesium (Mg). S accounts for 2%-4% of the fertilizer total weight, Mo accounts for 0.02%-0.06% of the fertilizer total weight, and B accounts for 0.05%-0.1% of the fertilizer total weight. The soybean special fertilizer can fully meet demand of soybean on the nutrients and improve soybean yield and quality.

The invention relates to the technical field of insecticides, and in particular relates to abamectin.imidacloprid granules for preventing and treating insect pests. The granules contain the following constituents in percentage by weight: 1.0-2.5% of abamectin, 1.0-2.5% of imidacloprid, 0.5-2.0% of a stabilizer, 0.1-0.4% of an adhesive, 0.05-0.2% of a colorant, 0.2-0.5% of a plant growth regulator, and 91.9-97.1% of carriers. The abamectin.imidacloprid granules disclosed by the invention are long in efficacy, low in residual quantity, safe, low in toxicity, low in risk, and suitable for industrialized production, wherein the reparation process is simple, and the control conditions are easy.

The invention provides an automatic insect eliminating and killing lamp which belongs to the technical field of insect killing equipment. The automatic insect eliminating and killing lamp settles problems of low insect eliminating effect of an existing insect killing lamp and easy damage of an induction switch of the insect killing lamp. The automatic insect eliminating and killing lamp comprises an upper lamp cap, an insect collecting plate, a top cover, a lead screw, an insect eliminating wire brush bracket, a position induction rod, a position induction switch and a motor which is used for driving the lead screw to rotate. The lead screw is arranged on the upper lamp cap in a penetrating manner and furthermore the top of the lead screw upwards penetrates through the upper lamp cap. The insect eliminating wire brush bracket and the position induction rod are connected with the lead screw in a leadscrew-nut transmission manner. The position induction rod is arranged between the upper lamp cap and the top cover. The position induction switch is used for detecting the position of the position induction rod and makes the motor perform clockwise rotation or counter-clockwise rotation according to the position of the position induction rod. According to the automatic insect eliminating and killing lamp, automatic lifting of the insect eliminating wire brush bracket is realized; the position induction rod and the position induction switch are arranged in an inner chamber which is formed by the top cover and the upper lamp cap, thereby preventing influences of sunlight, rainwater, dust and insect bodies.

A natural pyrethrin microemulsion as an insecticide for preventing and killing the most of agricultural and vegetable pests is prepared from natural pyrethrin, natural assistant, chemical assistant, and water.

The invention relates to the technical field of forestry equipment, in particular to a forestry pest control device, comprising a base; a first insect killing mechanism is arranged on the inner side of the base; the top of the base is fixedly connected with a collecting disc, and the inner side of the collecting disc is fixedly connected with a supporting column; the top of the supporting column is provided with a second insect killing mechanism, and the top of the second insect killing mechanism is fixedly connected with a top plate; the top of the top plate is provided with a solar pane electrically connected with a storage battery arranged on the top of the top plate; according to the invention, the second insect killing mechanism is provided, so that aerial pests can be killed; the first killing mechanism is provided, so that pests which cannot fly on the ground can be killed; the problem that the existing insect killing device can only kill airborne pests is solved; the insect killing capacity of the device is improved; a first collecting box and a second collecting box are provided, so that dead pests can be conveniently handled by people.

The invention discloses a jatropha curcas dedicated composite fertilizer, a preparation method and applications thereof. The dedicated composite fertilizer is prepared from the following components in parts by weight: 30 to 35 parts of banana stalk, 35 to 40 parts of manure of livestock and poultry, 5 to 12 parts of liquid monosodium glutamate dreg, 10 to 13 parts of peanut bran powder, 1 to 3 parts of jatropha bran powder, 0.02 to 2 parts of plant insecticide, 1 to 2 parts of water-retaining agent, 0.002 to 0.010 part of microbial inoculant, 1 to 2 parts of urea with a nitrogen content not less than 46.4%, 3 to 4 parts of calcium superphosphate with a P2O5 content not less than 12%, and 2 to 3 parts of potassium chloride with a K2O content not less than 60%. The provided fertilizer is suitable for being used in the seedling period and topdressing period and can be used as a base fertilizer. The jatropha curcas dedicated composite fertilizer has comprehensive and abundant nutrients, can provide enough nutrients for jatropha curcas, and is capable of preventing diseases and insects. Jatropha curcas is usually planted in water-deficient areas such as hillside, high mountains, and the like, and the provided fertilizer can relieve water deficiency. Moreover, the raw material source is wide, the cost is low, and the preparation technology is simple. So the fertilizer can promote the sustainable development of rock desertification region and generates good economic benefit, social benefit, and ecological benefit.

The invention discloses a coating fertilizer special for soybean and a preparation method for the coating fertilizer. The coating fertilizer consists of a fertilizer core and a coating layer, wherein the coating layer comprises a mixture of phosphate tailings and a solution obtained by performing condensation reaction on polyvinyl alcohol and one of formaldehyde, acetaldehyde, propionaldehyde andbutyraldehyde in a weight ratio of 15:(2-10); the phosphate tailings account for 5 to 25 percent of the total weight of the mixture; and the weight of the dried coating layer is 8 to 30 percent of the total weight of the coating fertilizer. The coating fertilizer has high sustained release performance, can fully meet the requirement of the soybean on nutrients, and improves the yield and quality of the soybean.

The invention discloses a high-survival-rate snow pear seedling culture method. The method includes the following steps that semi-lignified snow pear twigs in the current year are selected; the snow pear twigs are soaked in clean water for 1-1.5 h and then soaked in a soaking agent for 8-12 h; the cuttage planting time ranges from May to June; the snow pear twigs are vertically inserted into soil; the snow pear twigs are irrigated with clean water twice in the morning and in the evening for three days after cuttage and irrigated with an addition agent in cooperation within three weeks starting from the fourth day; a snow pear pest control and prevention agentia is sprayed to prevent and control pests. According to the cuttage seedling culture method, as the twigs not inserted are treated, callus of the twigs can be promoted to form, and the survival rate of twig cuttage is increased. The adopted snow pear pest control and prevention agentia is environmentally friendly, simple in manufacturing technology and low in cost; an adopted cuttage medium is of a three-layer structure, by means of reasonable nutrition configuration of all layers, the cuttage survival rate of snow pears is increased most efficiently, and snow pear seedling are high in activity.

The invention discloses a special controlled-release insecticide fertilizer for sugarcanes. The special controlled-release insecticide fertilizer is prepared from the following substances in parts by weight: 40-60 parts of a main fertilizer, 0.5-1.5 parts of a microelement fertilizer, 2-5 parts of an antibacterial agent, 3-6 parts of an insecticide, 2-4 parts of a controlled-release agent and 20-30 parts of a filling agent. The controlled-release insecticide fertilizer disclosed by the invention comprehensively shows a continuous high-quality fertilizer effect and favorable pest preventing and controlling effects and can be used for increasing the yield of sugarcane stalks by 20-30% as comparison with a common fertilizer, the comprehensive pest occurrence rate is reduced by 30-40%, all the components can be naturally degraded in soil, soil hardening and other phenomena cannot be generated if the special controlled-release insecticide fertilizer is used for a long term, and the special controlled-release insecticide fertilizer has a favorable application prospect.

The invention relates to an insect attracting and trapping device. The device comprises a cover body and an insect attracting light source; an insect attracting device and an insect killing device are arranged in the cover body; the insect attracting device comprises the insect attracting light source and a light conductor, wherein the insect attracting light source is arranged in the cover body and is connected with a power supply; the light conductor is arranged on the insect attracting light source; one end of the light conductor extends from the cover body through an opening formed in the cover body; a light spreading body is arranged at one end of the light conductor, extending out of the cover body; the light emitted by the insect attracting light source is spread by the light spreading body through the light conductor in order to attract mosquito; the insect killing device is arranged in the cover body; mosquito attracted by the light spreading body enters the cover body through the opening in the cover body and moves close to the insect attracting light source and then is trapped and killed by the insect killing device. According to the insect attracting and trapping device, the integrated structure of attracting the insect with light, trapping the insect with the cover body and killing the insect with the insect killing device is adopted; compared with water-current-based insect killing process, the device has the advantages that the sanitation is improved, and the polluted water is not produced; the device is safer and saves more energy by being compared with the electric-net-based insect killing process.

The invention discloses an environment-friendly pesticide for vegetables, melons and fruits and a preparation method thereof, and relates to the field of pesticides. The pesticide is prepared from the following raw materials: pyrethrum, roots or herb of trifoliate jewelvine, radix sophorae flavescentis, polygonum hydropiper herb, artemisia lavandulaefolia, common cnidium fruits, lantana camara, sapindus mukurossi fruits, hyssopus officinalis, honeysuckle and datura stramonium. The environment-friendly pesticide for the vegetables, melons and fruits has the advantages of high pesticide effects, fast action, insusceptibility to generating chemical pollution to the environment, and capability of promoting the growth of agricultural products; meanwhile, the production method is safe and simple, has low cost, short preparation time and high efficiency, and is applicable to large-scale production in agriculture.

The invention discloses an environment-friendly high-efficiency quality-stable broad-spectrum plant-derived insecticide and a preparation method thereof, the environment-friendly high-efficiency quality-stable broad-spectrum plant-derived insecticide comprises the following raw materials by weight: 20-30 parts of a mixed traditional Chinese medicine, 15-25 parts of a bactericidal traditional Chinese medicine, 1-2 parts of nicotine, 1-2 parts of matrine, 0.5-1 part of azadirachtin, 0.5-0.7 part of toosendanin, 1-2 parts of alkaloids, 0.4-0.6 part of xanthoxylin, 0.5-0.9 part of celastrus angulatus, 20-30 parts of a slow-release filler, 0.6-0.8 part of a penetrant, 1-2 parts of a stabilizer, 0.05-0.09 part of a growth regulator and 6 to 8 parts of water. The environment-friendly high-efficiency quality-stable broad-spectrum plant-derived insecticide has the excellent effects of killing pests and inhibiting the growth of pest eggs, has good control effects on pests such as aphids, trialeurodes vaporariorum, Spodoptera litura and leaf folder, has certain sterilization functions, is harmless to plants, and has no toxic and side effects on the human body, and the product has good sustained release effect and long acting time, and the preparation method provided by the invention has low production cost, simple process, high practical value and good application prospects.

The invention relates to an insect-killing device. A solar insect-killing lamp comprises a solar assembly, a storage battery, an insect-killing lamp, a bottom box, a hollow lamp holder and a control switch, wherein the insect-killing lamp consists of an upper shell, a lower shell, a light source, a high-voltage net and a protecting net; the upper shell is connected with the lower shell through the high-voltage net and the protecting net; the high-voltage net and the protecting net are arranged at the peripheral of the light source sequentially; the control switch is connected with the storagebattery and is arranged in the bottom box; the bottom end of the hollow lamp holder is fixed on the bottom box; the solar assembly is arranged on the top of the hollow lamp holder; the insect-killinglamp is arranged on the hollow lamp holder; a control circuit board communicated with the control switch is arranged in the upper shell of the insect-killing lamp; and the light source is a purple light-emitting diode (LED) lamp with wavelength of between 315 and 415 nm. The solar insect-killing lamp has the advantages of safety and convenience of use, good insect-killing effect, energy conservation, environmental friendliness and attractive overall appearance.

The invention discloses a biological foliar fertilizer and a preparation method thereof, and the biological foliar fertilizer comprises the following components in parts by weight: 0.5-1 part of combined functional bacterial powder, 55-60 parts of silicon dioxide, 2-3 parts of sodium borate, 1-3 parts of zinc sulfate, 0.5-1 part of ferric sulfate, 0.5-1 part of manganese sulfate, 5-10 parts of magnesium sulfate, 8-12 parts of amino acid, 8-12 parts of sucrose, 1-5 parts of urea, 5-10 parts of potassium dihydrogen phosphate, 0.0001-0.001 part of a synergist and 0.5-1 part of a suspending agent. The foliar fertilizer has the beneficial effects that a special medium-trace element formula is developed through experiments and tests and is suitable for melons, fruits and vegetables, amino acid added in the formula can be directly utilized by plants, and the fertilizer efficiency rate of the foliar fertilizer is improved. The foliar fertilizer has the function of promoting growth and also has the function of preventing diseases and pests.

The invention discloses a capsicum annuum planting method. The method comprises steps as follows: (1), variety selection and seed pretreatment; (2), germination accelerating treatment; (3), seedling culture; (4), seedling culture management; (5), field planting; (6), field management; (7), harvesting. According to the capsicum annuum planting method, seed germination rate, seedling rate and seedling strengthening rate of direct sowing of capsicum annuum can be increased, besides, the method is simple and easy to operate, incidence rate of pest and disease damage is low, capsicum annuum growthrate is high, capsicum annuum yield is increased, taste and nutritive value of the capsicum annuum are improved, planting cost of the capsicum annuum is reduced, economic benefit of a vegetable groweris increased, and the method is suitable for being popularized.

The invention discloses an agent for preventing and treating plant diseases and insect pests of snow pears. The agent is prepared from the following components: capsicum, borax, quick lime, sulfur, mint, sodium hypochlorite, sodium hydroxide, sodium chloride, hickory branches and betel nuts. The agent disclosed by the invention is green and environmental-friendly, free of environmental pollution, wide in source of raw materials, simple in manufacturing process and low in cost. By virtue of reasonable match of agents in use, a decocted liquid of mint, hickory branches and betel nuts which are mixed and in addition, adjustment of sodium chloride is matched, so that plant diseases and insect pests and eggs can be killed through the liquid which penetrates through and erodes walls of bacteria and injurious insects. By adopting a mixed liquid of calcined borax, sodium hypochlorite and sodium hydroxide and a mixed liquid of capsicum and matching with decoction of lime stones and sulfur, the pesticide effect is enhanced, the effect for preventing and treating diseases and insect pests is improved to the maximum extent, the disease time of snow pears can be shortened, and the re-incidence rate of snow pears is reduced.

The invention relates to a deinsectization lamp, in particular to an efficient power grid deinsectization lamp. The technical problem to be solved by the invention is to provide the efficient power grid deinsectization lamp. In order to solve the technical problem, the invention provides the efficient power grid deinsectization lamp which comprises a first box body, a shell, an accumulator, an installation seat and the like; the bottom in the first box body is symmetrically provided with the installation seat, the top of the installation seat is provided with the shell, the accumulator is mounted on installation seat and positioned in the shell, the bottom of the first box body is provided with a support plate, the bottom of the support plate is provided with a railing, a deinsectization mechanism is arranged in the middle of the bottom of the support, the deinsectization mechanism is positioned on an inner side of the railing, the bottom of the railing is provided with a second box body, the second box body is provided with a first opening, and the bottom of the second box body is symmetrically provided with a fixing mechanism. The efficient power grid deinsectization lamp achieves an efficient deinsectization effect, by arranging the deinsectization mechanism, all the surrounding mosquitoes are attracted to suffer from electric shock so as to achieve the deinsectization effect, and the device is simple in operation, convenient to use and strong in generalizability.

The invention discloses a dual-chamber pesticide sprayer. The dual-chamber pesticide sprayer comprises a liquid tank, a first air chamber assembly, a second air chamber assembly, a first hose, a second hose and a spray rod, wherein the liquid tank is used for accommodating a liquid pesticide, and comprises a first liquid storage chamber and a second liquid storage chamber; liquid inlets are formed in the first liquid storage chamber and the second liquid storage chamber respectively; the first air chamber assembly is arranged in the first liquid storage chamber; the second air chamber assembly is arranged in the second liquid storage chamber; the spray rod comprises a first rod, a second rod, a third rod and a fourth rod. Due to mutual action among the liquid tank, the first air chamber assembly, the second air chamber assembly, and the first rod, the second rod, the third rod and the fourth rod of the spray rod, two different liquid pesticides can be simultaneously sprayed on the upper and lower surfaces of a crop and the surface of ground directly, so as to kill injurious insects on the upper and lower surfaces of leaves and the surface of ground to enhance the deinsectization effect.

A novel farmland LED (light emitting diode) lamp pest killing device is mainly formed by a rotary part and a fixed part; the rotary part is slowly rotated by an electric rotary shaft to periodically change the frequencies of three light sources; the fixed part is continuously kept at the fixed frequency to achieve the optimal pest killing effect, meanwhile, due to the specific ring hook design in the electric shaft, the winding problem of a wire when the electric shaft is rotated is well solved. The novel farmland LED (light emitting diode) lamp pest killing device is simple in structure, safe in use and better in pest killing effect, frequency conversion is realized in a rotary mode, and the winding problem of the wire when the electric shaft is rotated is solved.

The invention discloses a preparation method of chloranthus angustifolius extractive and adopts the chloranthus angustifolius as raw material and is obtained by solvent extraction, supercritical extraction, microwave extraction, ultrasonic extraction, crushing extraction, steam distillation or extraction. The invention also discloses the application of the extractive in preparation of a pesticide and a bactericide. The invention can change the chloranthus angustifolius into useful substance to prepare a botanical extract with excellent insecticide and bactericidal activity, with significant effects on diseases and pest control. The preparation method of the invention is simple and easy and has lower cost and good prospects for application and generalization.