265results about How to "Improve insecticidal efficiency" patented technology

The invention relates to a preparation method of a leaf vegetable insecticide. The preparation method comprises the following steps: adding 10-15kg of flos daturae, 8-10kg of aconite, 6-8kg of felwort, 8-12kg of coptis chinensis, 15-20kg of croton, 10-15kg of radix stemonae, 15-20kg of lithospermum and 14-18kg of thunder god vine into 200-300kg of water; boiling by high fire and decocting by soft fire till about 150-200kg of liquid medicine is left; filtering the liquid medicine; grinding 4-5kg of toad skins to fine powder and adding the fine powder to the liquid medicine to be mixed; after cooling to room temperature, adding 0.8-1kg of acetamiprid and 0.8-1kg of fipronil to stir and mix. The preparation method of the leaf vegetable insecticide provided by the invention takes the decoction decocted by traditional Chinese medicines as a main material and acetamiprid and fipronil as auxiliary materials, so that insects are efficiently killed and prevented with the kill ratio over 95%; the vast majority of the insecticide is traditional Chinese medicines, so that the insecticide is green and environment-friendly and free from pollution to the environment and crops.

The invention relates to compound preparation and protein molecule carrier, and specifically discloses a fluorescent star polymer, a preparation method and applications thereof. Perylene derivatives and analogs thereof are taken as the fluorescent core of the fluorescent star polymer. Fluorescent star polymers with amino acid characteristic groups in different generations are prepared through a divergence method. Because the exteriors of fluorescent star polymer molecules carry special amino acid groups, the fluorescent star polymer molecules can be easily recognized and swallowed by live cultured cells. Moreover, through non-covalent bonds, fluorescent star polymers can be bonded with protein molecules with negative charges or positive charges to form stable complexes. The provided fluorescent star polymer can be used as a carrier, can protect and carry exogenous protein molecules, and can successfully introduce exogenous protein molecules into live cultured cells. By feeding the insects, insect-killing protein molecules can be introduced into the cells of live insects by the fluorescent star polymer, the toxin of protein molecules can be fully exerted, the growth of insects is retarded, or the insects are killed by the toxin.

The invention provides a kieselguhr insecticide, and a preparation method and application thereof. The kieselguhr insecticide comprises the following components in percentage by mass: 80-91 percent of kieselguhr powder, 1.5-3.5 percent of pyrethrum powder and 7.5-16.5 percent of sepiolite powder. The insecticide contains simple components, is high in insecticide efficiency, safe, low in toxicity and low in residue, and is an environment-friendly natural plant insecticide. The insecticide is extremely powerful in lethality to software insects, and can be widely applied to storage of grains and seeds and prevention and treatment of plant diseases and insect pests of crop fruit, vegetable and food production; meanwhile, the insecticide preparation method is simple and is suitable for industrial production.

The invention discloses missible oil containing acetamiprid and lambda-cyhalothrin and an application of the missible oil. The active component of the missible oil comprises a mixture of acetamiprid and lambda-cyhalothrin at the mass ratio of (1-20) to 1. The acetamiprid is compounded with lambda-cyhalothrin to prepare a missible oil preparation. The missible oil has a good synergistic interaction effect; the insecticidal spectrum is expanded; the fast-acting property is improved; the drug resistance is delayed; and the missible oil has a good effect on prevention and treatment of insect pests such as aphids, aleyrodids and red spiders in grain crops, vegetables and fruit trees.

The invention clones insect specific neurotoxin gene BmkIT of East Asian scorpion and insect chitinase gene Chi to an insect cell-converting medium carrier pAcPDIEI to obtain a recombinant plasmid containing divalent anti-insect genes pAcPDIEI-Bmkit-Chi and transfecting the recombinant plasmid and DNA of AcNPV genome together in sfg cells, and obtaining a recombinant rhabdovirus containing divalent anti-insect genes AcNPV-BmKIT-Chi. The cooperation of the insect specific neurotoxin with the chitinase improves the poisoning effect of virus on cotton bollworms and other lepidopteral pests.

The invention discloses a polynucleotide sequence of optimized coding Androctonus australis neurotoxin polypeptide AaIT. The polynucleotide sequence is suitable for the transcription expression in fungi. The invention also discloses a fungus strain capable of expressing Androctonus australis neurotoxin polypeptide AaIT as well as a preparation used to control insects, wherein the preparation does not do harm to the environment and other animals and plants except insects, thereby belonging to an environment-friendly preparation. The invention also discloses a promoter used to guide the specific expression of target gene in insect hemocoel. The invention combines well the characteristics of fungus cell that fungus cell can infect insects and parasitize in the bodies of insects and the toxicity of insect toxin polypeptide for the first time, thereby greatly increasing the insect killing efficiency of the fungi.

The invention discloses an insecticidal composition of dinotefuran and bifenthrin and the application thereof. The active components of the medicine are dinotefuran and bifenthrin, and the mass ratio of dinotefuran and bifenthrin is 1-20:1. Dinotefuran and bifenthrin, that pharmaceutical active components of the insecticidal composition of the present invention, belong to two insecticides with different action mechanism, the mixture of the two insecticides does not conflict with each other, the insecticidal spectrum is expanded, the quick-acting property and the persistent property are improved, and the insecticidal efficiency is improved.

The invention discloses an insect inducing device with a cleaning structure. The insect inducing device comprises a top shell which is composed of a conical tip section and a cylindrical section connected at the lower end of the conical tip section and with the bottom closed, an edge cover is arranged on the outer wall of a position where the conical tip section is connected with the cylindrical section, a rechargeable battery and an electric appliance controller are arranged in the inner wall of the top shell, an insect receiving bucket is arranged below the top shell, and an outer high-voltage power grid is mounted on a closed baseplate of the cylindrical section; a rotating ring is mounted on the lower portion of the outer wall of the cylindrical section in a sleeved manner, inner teethare arranged on the inner wall of the rotating ring, a motor is arranged in the cylindrical section, a gear is mounted at the end of an output shaft of the motor and meshed with the inner teeth of the rotating ring, a downward hairbrush is mounted on the lower end face of the rotating ring, and bristles of the hairbrush contact with the outer wall of the high-voltage power grid. The insect inducing device is novel and reasonable in structural design and high in compactness, solar energy is utilized to generate power to power the rechargeable battery, and insects and other adhesions adhered onthe outer wall when the high-voltage power grid works for a long time are cleaned by driving the hairbrush to rotate through the rotating ring, so that insect inducing and killing efficiency is improved.

The invention relates to a deinsectization device, in particular to a deinsectization device for a municipal park. The technical purpose of providing the deinsectization device thoroughly killing mosquitoes for the municipal park is achieved. The deinsectization device for the municipal park comprises a deinsectization box, a baffle, a lifting rod, a guide sleeve, a mosquito sucking lamp, a spraying mechanism, a pressing plate, a lifting frame, a sliding block and the like; mosquito sucking openings are symmetrically formed in the lower sides of the left wall and the right wall of the deinsectization box, a first motor and the mosquito sucking lamp are installed on the upper side and the lower side of the rear wall in the deinsectization box respectively, the mosquito sucking lamp is located on the same horizontal line with the mosquito sucking openings, a first rotating shaft is connected to the front side of the first motor, and a connecting base is connected to the front side of thefirst rotating shaft. Accordingly, the effect of thoroughly killing the mosquitoes is achieved, the mosquitoes in the deinsectization box cannot escape and can be killed with insecticides slowly, inthe same way, batches of mosquitoes can be thoroughly killed continuously, a power grid bat kills the mosquitoes around the mosquito sucking lamp, the mosquito killing efficiency is improved, and themosquitoes are thoroughly killed.

The invention belongs to a synergic insecticidal composition which is a mixture comprising flubendiamide as a compound (A) and imidacloprid as a compound (B). The insecticidal composition provided by the invention can be processed into an emulsifiable solution, a suspension, a wettable powdery agent and water dispersible granules. In the invention, the weight ratio of the flubendiamide as the compound (A) and the imidacloprid as the compound (B) is (1-100):(1-100). The insecticidal composition provided by the invention has high insecticidal efficiency and can be used for effectively preventing and treating various pests on various crops such as paddy and the like. The insecticidal composition has a higher preventing effect than the single compound (A) or the single compound (B), and the application dosage of each active substance is greatly reduced. The invention not only has an ecological meaning, but also has an important environmental protection meaning.

Provided is a light-luring broad-spectrum multi-layer power grid high-efficiency insecticidal lamp. The light-luring broad-spectrum multi-layer power grid high-efficiency insecticidal lamp comprises a lamp cover, a light-changing pest luring lamp, a pest collecting shell, a base plate, an insecticidal power grid ring and connecting columns, wherein the base plate is fixed to the top of the pest collecting shell, a combination body formed by the base plate and the pest collecting shell is connected with the lamp cover to form a frame through the connecting columns, the light-changing pest luring lamp is installed between the base plate and the lower end of the lamp cover, the insecticidal power grid ring is arranged between the base plate and the lower end face of the lamp cover, the light-changing pest luring lamp is arranged in the insecticidal power grid ring, the insecticidal power grid ring is of a multi-layer spaced distribution structure, and encloses the light-changing pest luring lamp, the number of the distributed layers of the insecticidal power grid ring is larger than or equal to two, the separation distance between a positive electrode wire and a negative electrode wire of the portion, arranged in the inner layer, of the insecticidal power grid ring ranges from 1.5 millimeters to 5 millimeters, the separation distance between a positive electrode wire and a negative electrode wire of the portion, arranged in the outer layer, of the insecticidal power grid ring ranges from 5 millimeters to 10 millimeters, and the light colors of the light-changing pest luring lamp can be selected and set according to the favor of pests to be killed; due to the fact that the multi-layer power grid mode is used for killing the pests, the number of the killed pests is large, and the killing range of the individual pests is wide.

The invention discloses a target gene for controlling epilachna vigintioctopunctata and application of the target gene for controlling epilachna vigintioctopunctata. According to the target gene for controlling epilachna vigintioctopunctata and application of the target gene for controlling epilachna vigintioctopunctata, a highly lethal gene Lesswright of epilachna vigintioctopunctata is screenedout, moreover, dsRNA which efficiently silences Lesswright is designed, Lesswright has a strong lethal effect on epilachna vigintioctopunctata, then a technology capable of efficiently controlling epilachna vigintioctopunctata is developed, that is to say, by directly feeding epilachna vigintioctopunctata with the target gene dsRNA which has high capability of causing deaths of epilachna vigintioctopunctata, the control purpose is achieved. The technology is convenient to operate, good in effectiveness and sensibility and high in insecticidal efficiency, has multiple advantages of being environmentally friendly and the like, and has excellent application prospects.

The invention discloses an environment-friendly and degradable insect-sticking board. The environment-friendly and degradable insect-sticking board comprises a baseboard and insect-sticking glue coating at at least one side of the baseboard, wherein the insect-sticking glue is formed by mixing insect-killing primary liquid and insect-sticking glue matrix, the weight ratio of the insect-killing primary liquid to the insect-sticking glue matrix is (1-2):(5:8), the insect-killing primary liquid is prepared from 5-10 parts of fig extracting solution, 2-5 parts of azadirachtin emulsifiable concentrate, 10-20 parts of sophocarpidine aqueous solution, 10-20 parts of organic solvent, 5-10 parts of emulgator and 5-10 parts of stabilizer, and the insect-sticking glue matrix is prepared from 25-50 parts of acaroid resin, 10-20 parts of vegetable oil, 15-25 parts of vaseline, 20-40 parts of polybutylene and 0.1-0.5 part of preservative. By means of the environment-friendly and degradable insect-sticking board, the insect-killing primary liquid is added into the insect-sticking glue, the insect killing efficiency of the insect-sticking board is improved, the service life of the insect-stickingboard is prolonged, the fig extracting solution, the azadirachtin emulsifiable concentrate and the sophocarpidine aqueous solution are all environment-friendly and pollution-free reagents, and play asynthetic effect in the insect-killing effect, the insect-killing effect of the insect-killing primary liquid is greatly improved, and the environment-friendly and degradable insect-sticking board issuitable for being popularized in the field of insect killing.