22 results about "Insect pheromones" patented technology

The invention provides an alcohol insect pheromone derivative, which takes a compound containing at least one active group such as carboxyl and amido as a carrier, and alcohol insect pheromone forms derivatives such as ester derivatives and anhydride derivatives with the compound through chemical reaction. The invention also provides a preparation method, application and a release method of the alcohol insect pheromone derivative. According to the alcohol insect pheromone derivative, alcohol insect pheromone is treated in a chemical reaction mode, the stability of the alcohol insect pheromone can be remarkably improved, slow release and controlled release of the pheromone can be achieved, the carrier material is wide in source, multiple in selectivity, convenient to use and economical, and in addition, the alcohol insect pheromone derivative can be used for preparing the alcohol insect pheromone derivative. The alcohol insect pheromone derivative provided by the invention can also realize combined release of various pheromones, so that trapping, prevention and control of various insects can be realized.

The invention provides an aldehyde insect pheromone derivative, which takes a compound containing at least one primary amine group as a carrier, and aldehyde insect pheromone forms an imine derivative with the compound through chemical reaction. The invention also provides a preparation method, application and a release method of the aldehyde insect pheromone derivative. According to the aldehyde insect pheromone derivative provided by the invention, aldehyde insect pheromones are treated in a chemical reaction manner, the stability of the aldehyde insect pheromones can be remarkably improved, slow release and controlled release of the pheromones can also be realized, the carrier material is wide in source, more in selectivity, convenient and economical, and in addition, the aldehyde insect pheromone derivative has good application prospects. The aldehyde insect pheromone derivative provided by the invention can also realize combined fixation and release of various pheromones, so that trapping, prevention and control of various insects can be realized.

The invention relates to a plant genetic engineering technology, in particular to a method for producing insect pheromone precursor substances in soybeans. Specifically, transgenic soybeans for expressing exogenous calyx flower plant thiolipase and insect desaturase are obtained through a genetic engineering technology, the transgenic soybeans can synthesize insect pheromone precursor substance cis-11-hexadecenoic acid, and therefore the biological efficiency and feasibility of plant factory pheromone production are proved. Furthermore, as the soybean is used as an oil crop with high acre yield, the soybean naturally contains high-content palmitic acid (C16: 0), the acre yield of the insect pheromone precursor substance cis-11-hexadecenoic acid is predicted to be far higher than that of other plants, and the plant is an ideal biological factory for mass production of the insect pheromone precursor substance cis-11-hexadecenoic acid.

The application discloses a preparation method of a non-conjugated functionalized olefin compound, and the method is carried out in a cobalt / photocatalysis dual catalytic system which is composed of a cobalt catalyst, a ligand, a photocatalyst, a hydrogen source, a base and a solvent. β The target product is efficiently and selectively synthesized through reaction of an ethylenic compound or a halogenated compound or an electron-deficient olefin represented by formula (2) with acetylene as a C2 synthetic unit. The application adopts a cobalt / photocatalysis dual catalytic synergistic mechanism, has mild conditions (normal temperature and pressure, visible light driving), uses water as a green hydrogen source, uses acetylene as a cheap C2 source, has high atom economy, has good substrate universality, and the compound represented by formula (1) is easy to be prepared through Friedel-Crafts acylation or is commercially available, and the compound represented by formula (1) is easy to generate the compound (III) represented by formula (2) under the action of a base. The obtained non-conjugated olefin is a key intermediate for synthesizing high-value-added fine chemicals such as fragrances and insect pheromones, and has wide application prospects.

The application discloses an insect trap, which comprises a base, a high-voltage electric net, a tank and a bottom box, a recess is arranged in the middle of the base, the bottom box is arranged in the recess, a space for storing liquid is reserved between the side wall of the bottom box and the side wall of the recess, the high-voltage electric net is arranged around the recess, the tank is used for storing an insect pheromone agent, a partition plate is arranged in the tank, the tank is divided into an upper cavity and a lower cavity by the partition plate, a flexible air bag is arranged in the upper cavity, the lower cavity is filled with the pheromone agent, the bottom of the lower cavity is communicated with a first pipeline, the upper part of the lower cavity is communicated with a second pipeline, the air bag is communicated with a third pipeline, the lower ends of the first pipeline, the second pipeline and the third pipeline are communicated with the inside of the bottom box, the lower end height of the third pipeline is greater than that of the second pipeline, and the lower end height of the second pipeline is greater than that of the first pipeline, and the bottom box is communicated with the recess through a fourth pipeline. The application can effectively control the release and volatilization of the agent, maintain the trapping effect for a long time and prevent the waste of the agent.

This utility model relates to the technical field of pest control devices, and discloses a pest control device for rice. It includes a support rod, a support plate fixedly connected to the top of the support rod, an angle adjustment component mounted on the top of the support plate, a solar panel mounted on the top of the angle adjustment component, a grid frame on the side of the support rod, an electric grid installed inside the grid frame, an insect pheromone core slidably connected to the middle of the grid frame, and a quick-release component mounted at the bottom of the grid frame. The angle adjustment component includes a fixing frame, fixedly connected to the top of the support plate, a worm gear rotatably connected to the middle of the fixing frame, and a rotating frame rotatably connected to the top of the fixing frame. In this utility model, a motor drives the worm gear to adjust the angle of the solar panel, and the double support frame structure ensures rotational stability, improves light energy utilization, and extends the lifespan of the connection parts.

The invention belongs to the technical field of gas detection, and relates to a gas chromatography detection method for enriching insect aggregation pheromones in air by using an ionic liquid composite material, which comprises the following steps: taking an ionic liquid methanol solution as an impregnation liquid, adding an adsorption carrier, impregnating at room temperature, carrying out rotary evaporation to remove methanol, and drying to obtain the ionic liquid composite material, the ionic liquid composite material is used as an adsorbent, and nitrogen is used as carrier gas to activate and remove impurities of the adsorbent; sampling a gas sample by using the activated and impurity-removed adsorbent to obtain a sampling column; and performing thermal desorption on the sampling column, and determining the content of the insect aggregation pheromone in the sampling column by adopting a gas chromatographic method. The ionic liquid composite material is prepared by utilizing the designability of the structural property of the ionic liquid to serve as an adsorbent, selective enrichment of target insect aggregation pheromones with extremely low concentration is realized, and qualitative and quantitative detection of trace insect pheromones in air is realized.

1. The name of the design product: Insect pheromone releasing device. 2. The use of the design product: For storing and continuously releasing insect pheromones to trap insects or interfere with insect mating, etc., for biological control. 3. The design points of the design product: In shape. 4. The picture or photo that best shows the design points: Perspective view 1.

The invention relates to the technical field of insect trapping devices, in particular to a preparation method of an insect pheromone lure. The porous aluminum tray is arranged to be used for preparing the lure, the lure plug is inserted into the insertion hole of the tray, the opening of the lure plug is basically flush with the bottom plate of the tray, then the insect sex attractant and petroleum ether are mixed and dissolved and then poured into the tray where the lure plug is inserted, and the insect sex attractant permeates into the inner wall of the lure plug along with volatilization of the petroleum ether. According to the method, the insect sex attractants can be attached to multiple (hundreds of) lure plugs at the same time, and all the attractants are attached to the inner walls of the lure plugs, so that the preparation efficiency of the lure can be improved, and waste of the insect sex attractants can be reduced. Wherein the insect sex attractant is attached twice, the petroleum ether with the distillation range of 30-60 DEG C is matched for the first time, and the petroleum ether with the distillation range of 60-90 DEG C is matched for the second time, so that the insect sex attractant can permeate to different depths of the lure plug, the carrying capacity of the insect sex attractant is improved, and the service life of the lure is prolonged.

The present invention provides an aldehyde-based insect pheromone derivative. A compound containing at least one primary amine group is used as a carrier, and an aldehyde-based insect pheromone forms an imine derivative with the carrier by means of a chemical reaction. The present invention further provides a preparation method and use of the aldehyde-based insect pheromone derivative, and a release method. By means of the treatment of the aldehyde-based insect pheromone in a chemical reaction, the aldehyde-based insect pheromone derivative provided by the present invention can exhibit significantly improved stability and can also realize the sustained release and controlled release of the pheromone. The carrier material has a wide range of sources, diverse choices, convenience, and economy. In addition, the aldehyde-based insect pheromone derivative provided by the present invention can also realize the combined fixation and release of multiple pheromones, thereby enabling the trapping, prevention and control of multiple insects.

This invention discloses the application of Sapindus mukorossi in the preparation of insect pheromones, belonging to the field of insect pheromone synthesis. The preparation method is simple, the raw materials are abundant, and the cost is low. This invention uses Sapindus mukorossi as raw material, extracting Sapindus mukorossi oil. The Sapindus mukorossi oil is directly reduced to obtain mixed fatty alcohols, which are then subjected to olefin metathesis and molecular distillation to obtain high-purity cis-9-tetradecenol and cis-11-hexadecenol. Cis-9-tetradecenol and cis-11-hexadecenol are then subjected to oxidation or acetylation reactions to obtain cis-9-tetradecenal, cis-11-hexadecenal, cis-9-tetradecenol acetate, and cis-11-hexadecenol acetate.

The invention relates to the technical field of agricultural pest control, in particular to a novel insect information lure as well as a preparation method and application thereof. A novel insect pheromone lure comprises an insect trapping plate, a male buckle and a female buckle, the female buckle is a buckle ring, a mounting hole is formed in the insect trapping plate or an insect sticking plate, the male buckle is arranged in the mounting hole in a penetrating mode and fixed by the female buckle in a sleeved mode, and the male buckle contains insect pheromone; the preparation method comprises the following steps: S1, preparing a pheromone carrier; s2, preparing a pheromone solution; s3, lure core forming; and S4, matching and combining. The product can be used for pest prevention and control in fields and grassland spring, and has the advantages that the cost is reduced, and the trapping effect is improved; in addition, the preparation method has the advantages of being convenient, fast, simple and effective.

The present application provides a protein and a method for synthesizing an insect sex pheromone precursor compound. The present application finds that co-expressing a protein with a hexadecanoic fatty acid specific thioesterase in plants, which amino acid sequence is shown in SEQ ID No. 2, can synthesize 10-hexadecenoic acid. The process of synthesizing 10-hexadecenoic acid by plants is green and pollution-free, has low environmental pollution degree due to simple and convenient purification, and has high purity of extraction, which changes the path of relying on chemical synthesis, solves the disadvantages of complex chemical synthesis, large amount of by-products, environmental pollution, high cost and low purity of final product, etc.

The utility model relates to insect control field, especially a kind of insect pheromone release device. The insect pheromone release device includes hook structure and at least one microcapsule structure, and the microcapsule structure is used to store and release insect pheromone;Multiple micropores are provided on the capsule wall of the microcapsule structure;The micropore is used to make insect pheromone pass through the capsule wall of microcapsule structure;The hook structure extends in ring shape, including sequentially connected bottom connecting portion, first side connecting portion, top connecting portion and second side connecting portion;The second side connecting portion is pasted with bottom connecting portion, and forms openable hook entrance. The insect pheromone release device not only can make pheromone solution be free from rain, oxygen, impurities etc. in environment Interference, so that it has the function of disorientation in long time, and it is convenient to use, can be hung on the leaves, branches of plant.

The present invention provides alcohol-type insect pheromone derivatives, wherein a compound containing at least one functional group such as a carboxyl group and an amide group acts as a carrier and is chemically reacted with an alcohol-type insect pheromone to form derivatives such as an ester derivative and an anhydride derivative. The present invention further provides a preparation method, a use, and a release method for the alcohol-type insect pheromone derivatives. The alcohol-type insect pheromone derivatives provided by the present invention, formed by means of chemically derivatizing an alcohol-type insect pheromone, significantly improve the stability of alcohol-type insect pheromones while also enabling the sustained release and controlled release of such pheromones. Carrier materials are widely available and offer a diverse range of options, providing convenience and cost-effectiveness. In addition, the alcohol-type insect pheromone derivatives provided by the present invention also enable the co-release of multiple pheromones, thereby allowing for a variety of insects to be trapped and managed.

This invention relates to the field of quantitative prediction technology and discloses a method and system for quantifying insect pheromone content based on spectral analysis. The method includes: collecting infrared or near-infrared spectral data of insect pheromones in a sample; calculating the optimal scaling factor that minimizes the residual water vapor peak, and correcting the second spectral data based on the optimal scaling factor; performing SNV transformation to obtain a preprocessed spectrum; performing iterative screening to determine the optimal wavelength subset based on the iterative screening results; constructing a diagonal weight matrix; using the optimal wavelength subset and the diagonal weight matrix to perform hierarchical weighted partial least squares regression modeling, with minimizing the weighted sum of squared residuals as the objective function of the model, and solving for the regression coefficients; independently calculating the infrared or near-infrared spectral data of the sample to be tested and the regression coefficients to obtain the predicted value of insect pheromone content in the sample. This invention solves the problems of weak anti-interference ability and poor model robustness in existing quantitative methods.

The utility model relates to insect trapping device technical field, especially insect pheromone slow -release device, including the tubular body of one end closed, still including slow -release plug, slow -release plug includes the columnar body and the joint part. The utility model discloses through setting up and the slow -release plug of tubular body detachable connection, can seal the opening of tubular body, and the pheromone that tubular body carries can release in a relatively airtight gap, and then release to the outside of insect pheromone slow -release device through slow -release channel, compared with the direct release of the opening end of the existing insect pheromone through tubular body, can reach the effect of slow -release, and simultaneously, the device is made of rubber, has the thermal expansion and cold shrinkage characteristics, and is matched with the slow -release access design of one end opening big one end opening small, and the release speed of insect pheromone is slow in the high temperature of daytime, and the release speed is fast at night, can prolong the use cycle and reach better pest trapping effect. The device can satisfy the use demand of one season crop, reduces the artificial cost of replacement.

Recombinant proteobacteria, including γ-proteobacteria, comprising a heterologous acyl-ACP desaturase and a heterologous acyl-ACP thioesterase, wherein the native dual 3-hydroxy acyl-ACP dehydratase / isomerase is deleted are provided herein. The recombinant proteobacteria produce non-native monounsaturated free fatty acids or derivatives thereof. Methods of producing non-native monounsaturated free fatty acids or derivatives thereof are also provided, in addition to cell cultures and fatty acid compositions produced by the recombinant proteobacteria. The recombinant proteobacteria may be used to produce insect pheromones or precursors thereof, and fragrances or precursors thereof.

The utility model relates to the field of pest control, and discloses a biological control device for green control of farmland diseases and insect pests, which comprises a main rod, a fixing ring is fixedly connected to the lower side of the outer wall of the main rod, a trapping cage is fixedly connected to the front end of the fixing ring, a fixing frame is arranged on the inner wall of the top end of the trapping cage, and a storage groove is fixedly connected to the bottom end of the fixing frame. Trapping lamps are fixedly connected to the inner walls of the left end and the right end of the trapping cage, a power grid is fixedly connected to the inner wall of the front end of the trapping cage, a sprinkler is connected to the rear end of the main rod through a conveying assembly, and a plurality of sprayers are fixedly connected to the front end of the sprinkler. According to the utility model, corresponding insect pheromones are poured according to the types of insect disasters which frequently occur in the season during use, then the fixing frame is inserted back to guide the pests to enable the pests to touch the power grid so as to kill the pests, and the trapping lamp can be turned on at night for auxiliary induction; the situation that no other protection means exist when part of the farmland is not sprayed with pesticide or the pesticide is low in concentration and fails in advance is made up.

This utility model discloses an intelligent insect pheromone emitter, belonging to the field of insect control technology. It includes an intelligent emitter body composed of an upper shell, a solar panel, a lower cover, a cotton swab holder, a cotton swab body, an aluminum bottle body, and an aluminum bottle outer shell. The upper shell has a diffusion hole on its upper surface, and a solar panel is embedded in the right side of the upper shell. A one-button locking buckle is fixedly connected to the other side of the upper shell. An aluminum bottle holder is bolted to the inner wall of the lower cover, and a main board is bolted to the upper surface of the aluminum bottle holder. An atomizing plate is embedded in the upper surface of the main board. A lithium battery is installed inside the lower cover. This intelligent insect pheromone emitter is easy to operate, has a simple structure, allows for remote adjustment of pheromone diffusion time and rate within a certain distance, is reusable, saves manpower, reduces costs, conserves pheromone usage, has higher utilization rate, and improves control effectiveness.

The invention relates to a wood-bamboo-based insect pheromone slow-release lure which comprises a slow-release carrier and insect pheromone. The slow-release carrier is one of the following products prepared by taking natural bamboo or wood as a raw material: cutting the natural bamboo or wood according to a preset shape, drying, and then carrying out chemical modification treatment to obtain a product A; carrying out delignification treatment and drying to obtain a product B; removing part of hemicellulose from the product B, and drying to obtain a product C; removing hemicellulose and drying to obtain a product D; by taking the product B, the product C or the product D as a framework material, adsorbing the nano material dispersion liquid, and then drying to obtain a product E; wood fibers of natural wood or bamboo fibers of bamboo wood are extracted and pressed to form a block-shaped or strip-shaped product F; and performing chemical modification by taking the product B, the product C, the product D or the product F as a framework material to obtain a product G. A novel pheromone slow-release carrier is developed on the basis of a wood (and bamboo) macrostructure, so that the use efficiency of pheromone is greatly improved, and the prevention and control cost is reduced.

This invention provides a method for synthesizing aliphatic olefin metathesis products with high Z-isomer purity from olefin starting materials with low Z-isomer purity. [Solution] This method includes contacting an internal olefin with an olefin metathesis reaction partner, such as an acylated alkenol or alkenal acetal, in the presence of a Z-selective metathesis catalyst to form an aliphatic olefin metathesis product. In various embodiments, the aliphatic olefin metathesis product is an insect pheromone. Pheromone compositions and methods of use thereof are also described.