41 results about "Insect pheromones" patented technology

The invention provides a picea flower monochamus alternatus attractant and a use method thereof.The attractant comprises plant source pheromone and insect pheromone, the chemical components are mixed according to a certain dosage and proportion and then dropwise added to slow-release carriers such as a slow-release bottle, a slow-release bag and a capillary tube, and a picea flower monochamus alternatus lure is prepared; the insecticidal composition can be used for trapping a large number of black longhorn beetles of picea flowers and has the characteristics of remarkable trapping effect and longer lasting period. The attractant is simple to prepare, good in attraction effect and not prone to generating resistance, the formula is a combination of host plant volatile matter and insect pheromone, the attractant is harmless to people and livestock and free of pollution to the environment, a practical pollution-free monitoring and prevention technical means is provided for large-scale trapping and killing of the black longhorn beetles in forests, forest resources are protected, and the economic benefits are increased. The ecological balance is maintained, the application value is very good, and the sustainable development of forestry is promoted.

The present disclosure is directed to insect repellant compositions comprising one or more semiochemicals produced by lady beetles. The compositions mimic the pheromones or odor of lady beetles and thus repel aphids and other soft bodied insects that are typically preyed upon by the same. The composition can be used to protect plants, fields, and the like from consumption by these herbivorous insects.

The invention discloses a core-shell structure polystyrene / polylactic acid spinning fiber loaded with pheromone and a preparation method of the core-shell structure polystyrene / polylactic acid spinning fiber. A coaxial electrostatic spinning method is adopted for preparation, a core solution is a polylactic acid solution and sex pheromone mixed solution, a shell solution is a polystyrene solution, a formed spinning film is collected on an aluminum roller wrapped with sulfate transparent paper, and the polystyrene / polylactic acid spinning fiber of the core-shell structure is obtained. The fiber is uniform in spinning morphology and has a core-shell structure, and the diameter of the fiber is about 2.24-3.55 microns. The method is simple, economical and efficient, has good adjustability in solution preparation and electrostatic spinning processes, is suitable for preparing polystyrene / polylactic acid spinning fibers with core-shell structures capable of loading insect sex pheromones of different types and concentrations, and realizes long-acting slow release of sex information through a polystyrene and polylactic acid dual slow release system. The slow release period of the sex pheromone in the spinning fiber can reach 8-14 weeks, and the sex pheromone can be applied to the aspects of biological prevention and control of neutral pheromone isotropic interference prevention and control of pests for a long time.

The invention relates to the technical field of pheromone insect luring cores, and discloses a micro-tube type insect pheromone insect luring core structure which solves the problem that an existing insect pheromone insect luring core is poor in use effect and comprises an insect luring core body and a trap matched with the insect luring core body. The insect luring core body is composed of a pheromone storage tank and a plurality of pheromone emission units, the pheromone storage tank is connected to the middle of the top end of the trap, each pheromone emission unit is composed of a miniature pipe sleeve, an emission core and a plurality of liquid absorption strips, a plurality of emission micropores are formed in the side edge of the miniature pipe sleeve, the miniature pipe sleeve is filled with the emission core, and the liquid absorption strips are arranged in the miniature pipe sleeve. The liquid absorption strip is connected to the top end of the emission core, and the trap is composed of a shell, two suspension arms, a box body, a battery, a controller, a conical cover, a high-voltage shock net, an air inlet assembly, a self-adaptive exhaust assembly, a plurality of collecting pipes and a plurality of collecting bags. Through cooperative use of the insect trapping core and a trap, the loading capacity of pheromones can be improved, and volatilization of the pheromones can be controlled.

The invention discloses a cricket abnormal smell detection device which comprises a detection cylinder, an upper cover is inserted into the upper end of the detection cylinder, a rubber sealing ring is arranged at the insertion position of the detection cylinder and the upper cover, the detection cylinder is connected with a base and the upper cover through a threaded cylinder in a threaded or buckled or pressure contact mode, and a detection assembly is arranged in the base. A gas inlet is formed in the center of the upper end of the upper cover, a gas inlet filtering assembly is arranged in the gas inlet, and a position adjusting hole is formed in the right side of the upper end of the detection cylinder. The second detection channel accurately recognizes components of volatile substances, such as insect pheromones or irritant chemical substances, through the spectral analysis technology, the detection accuracy and reliability are improved through the double-channel design, it is ensured that rapid preliminary screening and accurate qualitative detection can be achieved, and cheating of the crickets participating in the competition by smearing violation substances is effectively prevented.

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 insect trap comprises a base, a high-voltage power grid, a tank body and a bottom box, a groove is formed in the middle of the base, the bottom box is located in the groove, a liquid storage space is reserved between the side wall of the bottom box and the side wall of the groove, the high-voltage power grid surrounds the periphery of the groove, the tank body is used for storing insect pheromone agents, and a partition plate is arranged in the tank body. A partition plate is arranged in the tank body and divides the tank body into an upper cavity and a lower cavity, a flexible air bag is arranged in the upper cavity, the lower cavity is filled with pheromone agents, the bottom of the lower cavity communicates with a first pipeline, the upper portion of the lower cavity communicates with a second pipeline, the air bag communicates with a third pipeline, and the lower ends of the first pipeline, the second pipeline and the third pipeline communicate with the interior of the bottom box. The lower end of the third pipeline is higher than the lower end of the second pipeline, the lower end of the second pipeline is higher than the lower end of the first pipeline, and the bottom box communicates with the groove through a fourth pipeline. The invention can effectively control the release and volatilization of the medicament, maintain the trapping effect for a long time, and prevent the medicament waste.

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.

Herein are provided methods for increasing enzymatic activity of desaturases and fatty acyl reductases by co-expressing NAD(P)H cytochrome b5 reductases (EC 1.6.2.2, Ncb5or), as well as to methods for production of compounds comprised in pheromones, in particular moth pheromones, such as saturated and desaturated fatty alcohols, and saturated and desaturated fatty alcohol acetates and fatty acids, and derivatives thereof, in a cell.

Methods for the preparation of alkenes including insect pheromones are described. The methods include homologation reactions employing reagents such as 1,3-diesters, epoxides, cyanoacetates, and cyanide salts for elongation of starting materials and intermediates by one or two carbon atoms. The alkenes include insect pheromones useful in a number of agricultural applications.

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.

The present invention relates to a method for biosynthesizing unsaturated C-terminal polyols which can be used as insect pheromones, spices, flavoring agents and polymer intermediates. 6 ‑C 24 The recombinant microorganism can express the recombinant microorganism for producing unsaturated C 6 ‑C 24 The enzymes or enzyme variants that produce fatty alcohols, fatty aldehydes, and fatty acetates and / or can be modified to down-regulate the pathway to divert production toward unsaturated C 6 ‑C 24 Fatty alcohols, fatty aldehydes and fatty acetates. 6 ‑C 24 Fatty alcohols, fatty aldehydes and fatty acetates can be used as substrates for metathesis reactions to expand the library of target compounds and pheromones. Also provided is a method for producing unsaturated C 6 ‑C 24 Methods for producing fatty alcohols, fatty aldehydes and fatty acetates, and compositions comprising the recombinant microorganisms and / or optionally one or more of the product alcohols, aldehydes or acetates.

The present invention discloses a photothermal responsive insect pheromone sustained-release preparation and application. The preparation includes 54.55-59.41 wt% of thermal responsive hydrogel, 0.99-9.09 wt% of copper-polyphenol nanoparticles and 36.36-39.6 wt% of insect pheromone emulsion; the insect pheromone emulsion, copper-phenol nanoparticles and thermal responsive hydrogel are mixed, stirred for 30 minutes to ensure that the insect pheromone is evenly distributed in the thermal responsive hydrogel solution, cooled below 30°C to form a hydrogel, and a photothermal responsive insect pheromone sustained-release preparation is obtained; the release rate of the insect pheromone is synergistically controlled by the photothermal conversion effect of the copper-polyphenol nanoparticles and the temperature response of the thermal responsive hydrogel. The release rate of the insect pheromone in the present invention can be controlled by controlling different light intensity, light exposure time and temperature conditions, and the present invention significantly prolongs the duration of the insect pheromone.

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.

The small insect pheromone releaser comprises a base, a liquid storage cavity is formed in the base, a volatilization cylinder is arranged at the upper end of a shell, a first volatilization opening is formed in the outer side of the volatilization cylinder, a shielding cylinder is rotationally connected to the outer side of the liquid storage cavity, and a second volatilization opening is formed in the outer side of the shielding cylinder. A sliding groove is formed in one side of the interior of the base, a limiting rod is arranged in the sliding groove, a limiting sliding block is slidably connected to the outer side of the limiting rod, a rack is arranged at one end of the limiting sliding block, a permanent magnet is arranged at one end of the rack, and a spring is arranged on the outer side of the limiting rod; an electromagnet is arranged on one side in the base, a thermistor is arranged on one side in the base, and a storage battery used for providing power is arranged on one side in the base. According to the utility model, the release speed of the pheromone can be automatically adjusted according to the temperature change, and the waste of the pheromone is reduced.

Disclosed herein are methods for synthesizing a fatty olefin metathesis product of high Z-isomeric purity from an olefin starting material of low Z-isomeric purity. The methods include contacting an olefin metathesis reaction partner (e.g., an acylated enol or enal acetal) with an internal olefin in the presence of a Z-selective metathesis catalyst to form the fatty olefin metathesis product. In various embodiments, the fatty olefin metathesis product is an insect pheromone. Also described are pheromone compositions and methods of their use.

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 utility model belongs to the technical field of crop pest control equipment, in particular to a trapping and killing device for crop pest control, which comprises a main body support, a control panel, a motor and a fixed shaft frame, the control panel is arranged at the upper end of the main body support, the motor is arranged at the side end of the main body support, and the fixed shaft frame is arranged on the inner side of the main body support. By arranging the coaxial reversing mechanism, the driving gear, the first bevel gear, the second bevel gear, the trapping and killing cylinder and the extrusion shifting piece, when the device is used, an operator smears insect trapping pheromone outside the trapping and killing cylinder at first, and then a motor is controlled to be started through a control panel; a first bevel gear drives an extrusion shifting piece to rotate through transmission of a coaxial reversing mechanism, pests can be trapped and killed continuously through relative movement of a trapping and killing barrel and the extrusion shifting piece and cooperation of a partition plate, and compared with existing multi-motor driving, the device is simple in structure, easy to operate, high in automation degree and high in space utilization rate, and the cost is reduced. The pest control effect can be improved.

The present invention relates to the technical field of agricultural pest control, and in particular to an insect pheromone ink, an insect pheromone attractant core, and their preparation, application, and recycling. The insect pheromone ink comprises a thermoplastic biodegradable polymer material, an alcohol plasticizer, a graded volatile organic solvent, and an insect pheromone; it may further comprise a functional modification material; the functional modification material comprises lignin sulfonate and a metal salt. The insect pheromone ink provided by the present invention can be made into an insect pheromone attractant core through 3D printing, and the preparation process is simple and the cost is low. At the same time, the insect pheromone attractant core has a high pheromone encapsulation rate, a long duration of field release, is degradable, recyclable, and is environmentally friendly.

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 the field of plant protection appliances, in particular to a plant protection insect trapping device which comprises a supporting rod, a side rod is arranged on one side of the supporting rod, an electric control assembly is arranged below the side rod and used for storing and releasing electric energy, the end of the side rod is detachably connected with an insect trapping assembly and used for attracting and killing insects, and the electric control assembly is electrically connected with the insect trapping assembly. The insect trapping assembly is provided with an insect repelling lamp, the upper end of the insect repelling lamp is sleeved with a protective cover, the top of the insect repelling lamp is in threaded connection with the end of the side rod, and the tail of the insect repelling lamp is in threaded connection with the collecting box. According to the insect-repelling lamp, the attraction to the insects is further expanded, the insect-repelling efficiency is improved, meanwhile, the attraction capacity of the insect-repelling lamp to the insects in the daytime is improved, and the killing capacity of the insect-repelling lamp to the insects when the insect pheromone is used is enhanced through the power grid.

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.