96 results about "Sexual Pheromones" patented technology

The invention discloses a dark melolonthidae sex pheromone and a sex attractant. The sex pheromone comprises the following components: L-isoleucine methyl ester, (R)-(-)-linalool and 1-cyclohexane amino acid with the weight ratio of 2-9:1:0-1. The sex attractant comprises the dark melolonthidae sex pheromone and organic solvents; and the weight ratio of the sum of all components in the dark Melolonthidae sex pheromone and the organic solvents is 1:2.2-100. The dark melolonthidae sex pheromone is beneficial to protecting natural enemies, benefiting and eliminating pests, giving full play to integrated control power and improving the control effect when being used for forecasting insects and preventing dark melolonthidae pests by using a trapping method and an interference mating method; and in addition, the application of chemical pesticides is avoided so as to reduce the pollution, protect the environment and ensure remarkable economic benefits, social benefits and ecological benefits. The invention is suitable for the control of the dark Melolonthidae pests in farmlands.

The present invention provides a method for controlling plant diseases and pests by utilizing biomimetics principle. It is characterized by that a glue with viscosity can be sprayed on the plant surface, so that the harmful living beings can be adhered on the glue so as to attain the goal of controlling plant diseases and pests. The described atomizer is a kind of electrostatic sprayer optimally, and in the described glue with viscosity the various additive components of trace insect sexual pheromone and fluorescent matter also can be added so as to further raise the effect for controlling plant diseases and pests.

The invention provides a Hyphantria cunea Drury attractant composition, its application and attracting core. The Hyphantria cunea Drury attractant composition includes Hyphantria cunea Drury sex pheromone and its synergistic agent. The synergistic agent contains one or more of the following plant source smell components: beta-ocimene, hexanal, cis-3-hexenal, diacetone alcohol, diisopropylcarbinol, 6-methyl-5-heptene-2-one, trans-3-hexenol, o-xylene, hemimellitene, trans-2-hexenal, and limonene. The attractant composition provided in the invention can be prepared into an attracting core so as to be used cooperatively with the existing Hyphantria cunea Drury sex pheromone. The invention provides the attracting core containing the Hyphantria cunea Drury attractant composition to prevent, control and detect Hyphantria cunea Drury, so that the defects of high cost and difficult popularization of imported and domestic Hyphantria cunea Drury sex pheromone attracting cores in the prior art are solved. The attracting core provided in the invention has the advantages of low cost, flexible use, and higher trapping efficiency.

The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method for ectropis oblique sex pheromone [cis-6,7-epoxy-(z,z)-3,9-octadecadiene]. The ectropis oblique sex pheromone is obtained by oxosynthesizing (z,z,z)-3,6,9-octadecatriene in the presence of a catalyst, namely Keggin type tetrabutylammonium divacant lacunary silicotungsate, wherein the mole ratio of (z,z,z)-3,6,9-octadecatriene to the catalyst to an oxidant is (4.8-5.2):(0.006-0.010):(0.8-1.2), the oxidization reaction temperature is at 40-60DEG C, and the oxidization reaction time is 3-8h. according to the synthesis method for ectropis oblique sex pheromone, the middle purification step can be omitted by taking low-cost linolenate as a starting raw material, the environment pollution can be decreased by adopting the green epoxidation method of hydrogen peroxide, the cost can be lowered, the productivity is improved, and the synthesis method provides a new thought and a new method for the green synthesis of the sex pheromone.

The invention provides a universal sex pheromone composition and sex attractant for Ectropis grisescens and Euproctis pseudoconspersa as well as a preparation method and application of the sex pheromone composition and the sex attractant. The invention belongs to the technical field of tea pest control. The universal sex pheromone composition is prepared from cis-3, cis-6, cis-9-octadecatriene, cis-3, cis-9-6, 7-epoxy octadecadiene, cis-3, cis-6-9, 10-epoxy octadecadiene, cis-6, cis-9-3, 4-epoxy octadecadiene, 10,14-dimethyl pentadecanol isobutyrate and 14-methyl pentadecanol isobutyrate in amass ratio of (20-70):(30-80):(25-75):(25-75): (60-100):(5-30). The universal attractant disclosed by the invention has strong attractive force on the ectropis grisescens and the Euproctis pseudoconspersa at the same time, and can be used for efficiently carrying out population monitoring and trapping and killing control on the ectropis grisescens and the Euproctis pseudoconspersa.

The invention relates to a sitodiplosis mosellana Gehin sex pheromone precursor compound as well as a synthesis method and an application of sitodiplosis mosellana Gehin sex pheromone. According to the synthesis method of the sitodiplosis mosellana Gehin sex pheromone precursor compound, CuCl and hydroxylamine hydrochloride are added to a Schlenk tube equipped with a magnetic stirrer under the protection of nitrogen gas, the tube is put in an ice bath to be cooled, 70% of a n-butylamine aqueous solution in percentage by mass is injected, chiral alkynol II is added, bromo-chiral alkynol III is slowly added, a reaction liquid reacts at the low temperature, a product is extracted with ethyl ether after the reaction ends, washed with a saturated sodium chloride aqueous solution and dried, a coarse product is obtained after pressure reduction, and chiral alkynol IV is obtained through purification with column chromatography. The prepared sitodiplosis mosellana Gehin sex pheromone has high optical activity; besides, the synthetic route is simple, the cost is low, and the sitodiplosis mosellana Gehin sex pheromone has commercial application value.

The invention relates to a sex attractant for spodoptera frugiperda, as well as a preparation method and application of the sex attractant. The sex attractant for spodoptera frugiperda is prepared from sex pheromone and an auxiliary component, wherein the sex pheromone is prepared from cis-9-tetradecenyl acetate, cis-11-hexadecenyl acetate and cis-7-dodecenyl acetate; wherein the mass ratio of thecis-9-tetradecene acetate to the cis-11-hexadecene acetate to the cis-7-dodecene acetate is (83 to 89) to (5 to 15) to (1.0 to 2.5). The sex attractant for spodoptera frugiperda disclosed by the invention has a very good attracting effect.

The invention provides a sex pheromone for controlling phauda flammans walker and a preparation method of a sex pheromone lure. The sex pheromone for controlling the phauda flammans walker is preparedfrom cis-9-hexadecenal and (Z,Z,Z)-9,12,15-octadecatrienal in a mass ratio being 1:1. The preparation method of the sex pheromone lure comprises following steps: firstly, 10 microlitres of cis-9-hexadecenal and 10 microlitres of (Z,Z,Z)-9,12,15-octadecatrienal are blended in 980 microlitres of a hexane liquor at room temperature, and a mixed liquor with the mass ratio of the two sex pheromones being 1:1 is obtained; then the mixed liquor containing the sex pheromone for controlling the phauda flammans walker is dropwise added to a cotton sliver lure, and after n-hexane in the mixed liquor containing the sex pheromone for controlling the phauda flammans walker is volatilized, the lure containing a phauda flammans walker luring agent is prepared; finally, the prepared lure is sealed in aluminum foil and refrigerated at subzero 20 DEG C. The sex pheromone for controlling the phauda flammans walker is high in specificity, has obvious trapping effect on the phauda flammans walker outdoorsand is stable in effect.

The invention discloses a nano drug delivery system of a grassland spodoptera litura sex attractant and application of the nano drug delivery system. The amphiphilic lipid molecule loaded sex pheromone and the synergist linalool are formed by self-assembly of amphiphilic lipid molecules DSPE-mPEG5000 (1, 2-distearoyl-sn-glycerin-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-5000]), sex pheromone and linalool through a cosolvent method, and then the amphiphilic lipid molecule loaded sex pheromone and the synergist linalool are adsorbed onto a sustained-release carrier 0.22 [mu]m polyether sulfone membrane. The sex pheromone is composed of (Z)-9-tetradecene-1-alcohol acetate, (Z)-7-dodecene-1-alcohol acetate and (Z)-11-hexadecene-1-alcohol acetate in a mass ratio of 90: 0.5: 9.5. Theinvention further discloses a moth luring effect of the moth luring agent as a grassland spodoptera litura sex luring agent in the field.

The invention discloses a chilo suppressalis trapping agent and a preparation method thereof. The chilo suppressalis trapping agent is prepared from, by weight, 10-15 parts of synergist, 50-70 parts of sex pheromone and 600-900 parts of a solvent; the synergist is a combination of beta- caryophyllene, 4'-Methylacetophenone and n-nonane; the sex pheromone is a combination of cis-11-hexedecanal, cis-13-octadecenal and cis-9-hexedecanal. Through combination of the synergist and the sex pheromone, the trapping amount of chilo suppressalis male insects can be greatly increased, and the release timeof the synergist can be prolonged. The synergist is beta-caryophyllene, 4'-Methylacetophenone and n-nonane, but for a single-component synergist, the combined synergist can enhance the trapping effect on chilo suppressalis. The optimized chilo suppressalis sex pheromone composite synergist can trap a large number of chilo suppressalis adults in the field. The technology is simple and convenient to operate, and can be applied to chilo suppressalis prediction and green prevention and control.

The invention belongs to the field of chemical synthesis, and particularly relates to an industrial synthesis method of a dichocrocis punctiferalis sex pheromone. The method comprises the following steps: taking 1, 10-decanediol as a raw material; carrying out a single-side bromination reaction to prepare 10-bromodecanol; then reacting the 10-bromodecanol with triphenylphosphine to obtain 10-hydroxydecyltriphenylphosphine salt; performing a Wittig reaction with n-hexaldehyde under the action of alkali to obtain cis-based 10-hexadecene-1-ol; performing isomerization on the cis-based enol underthe action of p-methylthiophenol to obtain trans-based 10-hexadecene-1-ol; and finally performing oxidation under the action of an oxidant to obtain the final product 10-hexadecenal. The method is mild in reaction condition and suitable for large-scale production.

The invention belongs to the technical field of research and development of pest attractants, and in particular relates to an Erannis ankeraria Staudinger sex pheromone attractant composition. The Erannis ankeraria Staudinger sex pheromone attractant composition comprises sex pheromone and auxiliary components, the sex pheromone is composed of a novel (Z,Z,Z)-3,6,9-nonadecatriene component and a propylene oxide derivative [(6Z,9Z)-cis-3,4-epoxynonadecadiene:(3Z,9Z)-cis-6,7-epoxynonadecadiene:(3Z,6Z)-cis-9,10-epoxynonadecadiene =1:1:1]. The invention also relates to a three-step synthetic method of the (Z,Z,Z)-3,6,9-nonadecatriene of the attractant composition, and an analysis and identification method through a gas chromatography-electroantennogram device. The composition provided by the invention has the simple synthetic method, strong trapping ability, a long effect lasting period, strong specificity, adjustable trapping ability, no harm to humans and animals, and environmental friendliness; and according to intelligent application, accurate application can be achieved according to pest conditions, and the application efficiency is greatly improved.

The invention relates to the technical field of hyphantria cunea prevention and treatment, in particular to a synthetic method for synthesizing sex pheromone of hyphantria cunea. According to a traditional method for synthesizing (3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene by using propargyl alcohol as a starting material in the traditional technology, various side reactions are liable to occur during a sulfonic acid esterification reaction on a key intermediate (2S,3R)-2,3-epoxy-1-tetradecanol by using trifluoromethanesulfonic anhydride. In order to solve the problems, the (3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene is successfully synthesized by taking propargyl alcohol as an initial raw material and taking a Sharpless asymmetric dihydroxylation reaction as a key step without the step of the sulfonic acid esterification reaction on a key intermediate (2S,3R)-2,3-epoxy-1-tetradecanol by trifluoromethanesulfonic anhydride in the preparation process. Therefore, the whole reaction is mild and controllable and few in side reactions, and enantioselectivity is high.

The invention discloses a three-spotted plusia sex attractant composite and application thereof, and belongs to the technical field of insect sex pheromone preparation. The sex attractant composite comprises three-spotted plusia sex pheromone and synergists. Wherein the components of the sex pheromone are cis-7-dodecene acetate, cis-11-hexadecane acetate and cis-11-hexadecane aldehyde; the synergists are mainly one or more of plant volatile 2-ethyl-1-hexanol, ar-turmerone and pentanal; mass ratio of the sex pheromone to the synergists is 1:0.3-1.2. The composite has the advantages of simple preparation and convenient use, the composite can be accurately used for the insect pest monitoring, massive trapping and mating interference of the three-spotted plusia, and the composite has significant meaning on comprehensively treating the three-spotted plusia.

The invention relates to the technical field of insect sex pheromone component synthesis, and provides a novel method for synthesizing Micromelalopha troglodyta sex pheromone active ingredient. According to the novel method, 1, 13-tridecanol is used as an initial raw material, cheap and easily available trans-2-pentenal is used as an intermediate, and (Z, E)-13, 15-octadecadienal can be synthesized through four steps of reaction. The preparation method provided by the invention has the advantages of accessible raw materials, lower cost and fewer synthesis steps; furthermore, the synthesis method provided by the invention is mild in condition, reagents with very harsh reaction conditions such as Grignard reagents and lithium reagents do not need to be used in the whole synthesis process, and the synthesis method is suitable for large-scale production; the synthesis method provided by the invention is simple and convenient in purification and relatively high in yield, in the whole synthesis route, only (Z, E)-13, 15-octadecadienol and (Z, E)-13, 15-octadecadienal need to be subjected to column chromatography purification, and the next step of reaction can be carried out through simple treatment in other steps.

The invention discloses a synthesis method of trans-4-oxo-2-hexenal. The synthesis method comprises the following steps: bromobutanone and triphenylphosphine are used as initial raw materials; in organic solvents, the compound is prepared by the following synthetic route. By adopting a brand-new synthesis route, the whole synthesis process is simple and convenient to operate, the reaction conditions of each reaction stage are mild and controllable, the safety is high, the equipment investment is low, the yield of each intermediate product is 90% or above, and the yield of the final product trans-4-oxo-2-hexenal is high and is improved by 30% or above compared with the prior art; according to the method, the raw materials which are low in cost and easy to obtain are adopted, and the methodis suitable for industrial production and has important significance in realizing the release production of the sex pheromones of the apolygus lucorum.

The invention belongs to the field of detection and analysis, and particularly relates to a method for determining content of sex pheromone in a tobacco beetle sex pheromone lure. The method comprisesthe following steps: (1) immersing the tobacco beetle sex pheromone lure with a solvent to obtain a mixture; wherein the solvent is ethanol containing sodium borohydride, and the mass of sodium borohydride accounts for 0.05%-1% of the mass of the solvent; and (2) introducing the mixture into a gas chromatograph-triple quadrupole mass spectrometer through a headspace sample injector with a trap, and then carrying out detection to obtain a detection result. The invention also discloses specific operating conditions of the headspace sample injector with the trap. The method for determining the content of the tobacco beetle sex pheromone in the tobacco beetle sex pheromone lure and the tobacco beetle sex pheromone trap is high in repeatability, high in sensitivity, low in detection limit andhigh in accuracy.

The invention discloses a sex pheromone composition for prodenia litura, and belongs to the technical field of biological control. The sex pheromone composition comprises a spodoptera litura sex pheromone and a spodoptera litura sex pheromone analogue. The sex pheromone component is composed of cis-7-dodecene-acetate, cis-11-hexadecene-1-alcohol and cis-9-tetradecene-3-methyl 2-crotonate, and thesex pheromone analogue is composed of cis-7-dodecene-2-chloro-2, 2-difluoroacetate and cis-9-tetradecene-N, N-dimethylcarbamate. The mass ratio of the Spodoptera litura sex pheromone to the sex pheromone analogue is (0.3-3): (0.01-1). The sex pheromone composition disclosed by the invention can be used for more effectively trapping and killing male Spodoptera litura, reducing the mating frequencyand reducing the propagation rate, not only is low in dosage and environment-friendly, but also can be accurately applied to insect condition forecasting, mass trapping and mating interference, and has important significance for comprehensive treatment of Spodoptera litura.

The invention relates to the technical field of biological control of insect pests, in particular to a spodoptera frugiperda sex attractant as well as a preparation method and application thereof. The sex attractant for the spodoptera frugiperda comprises chitosan, sodium tripolyphosphate, sex pheromone of the spodoptera frugiperda and agar, the sex attractant is formed by low-viscosity chitosan, a cross-linking agent sodium tripolyphosphate and sex pheromone through an ionic cross-linking method, and then agar is added to obtain the gelatinous solid-state spodoptera frugiperda sex attractant, so that the sex attractant has good slow-release performance, and the continuous release time can reach more than 3 months; meanwhile, non-toxic and biodegradable chitosan is used for loading the sex pheromone of the spodoptera frugiperda, on one hand, direct contact between the sex pheromone of the spodoptera frugiperda and air can be reduced, volatilization is reduced, and the slow release time of the sex attractant of the spodoptera frugiperda is prolonged; and on the other hand, the chitosan serving as a carrier of the nanoparticles has a certain slow release function, so that the service time of the spodoptera frugiperda sex attractant can be prolonged, and the cost is reduced.

The invention relates to the field of insect killing, in particular to a termite sex pheromone attractant, a termite control device and a termite control method. The termite sex pheromone attractant disclosed by the invention has a relatively good attracting effect on breeding termites in termites, and comprises the following components: 4-phenyl-3-butenol; eugenol; hydroquinone; glucose; formic acid; ant nest soil; water and agar. The termite control device can effectively exert the attracting effect of the attractant and poisoning the attracted breeding termites, and comprises a box body, aclosed space and an open space are formed in the box body, the termite sex pheromone attractant is placed in the closed space of the box body, and termite toxic substances are arranged in the open space. According to the termite control method, the termite sex pheromone attractant is used for attracting the breeding termites in the termites to get close to and enter the termite control device, thebodies of the breeding termites are contaminated by termite toxic substances in the termite control device, and therefore breeding and nest separation of the breeding termites are difficult to complete.

The invention discloses a preparation method of compound insect sex pheromone for rice field pest control. The composite insect sex pheromone composition comprises sex pheromones I, sex pheromones IIand sex pheromones III, wherein the mass ratio of the first-class sex pheromones to the second-class sex pheromones to the third-class sex pheromones is (2-5) : (1-2) : (2-3); the preparation method comprises the following steps: (1) preparation of a composition reagent: mixing the synergist into a secondary sex pheromone solution under the conditions of standard atmospheric pressure and 20-25 DEGC, mixing the primary sex pheromone, the secondary sex pheromone and the tertiary sex pheromone in proportion, and performing standing treatment for later use; and (2) sequentially mixing an antioxidant and a light stabilizer in a certain proportion into the composition reagent, and uniformly mixing all the components to obtain the compound insect sex pheromone reagent. The composition reagent disclosed by the invention can be used for preventing and treating rice field pests, and has the advantages that three types of pests can be lured to gather at the same time, and the pest prevention andtreatment efficiency in a specific area is greatly improved.