56 results about "Whitefly" patented technology

The invention relates to the technical field of pesticides, in particular to a pesticide composition, application thereof and a pesticide preparation. The pesticide composition comprises a first effective component and a second effective component, the first effective component is 1, 8-cineole, and the second effective component comprises at least one of flonicamid, cyantraniliprole, nitenpyram, flubendiamide, spirotetramat, pyriproxyfen, pymetrozine, dinotefuran and sulfoxaflor. The mass ratio of the first effective component to the second effective component is (50: 1)-(1: 100). Through the synergistic interaction of the first effective component and the second effective component, the prevention and treatment effect is remarkably improved, the prevention and treatment spectrum is expanded, and the field dosage can be greatly reduced; specifically, leaf back bemisia tabaci and trialeurodes vaporariorum can be well controlled, the control effect on bemisia tabaci, trialeurodes vaporariorum, thrips and the like is improved, and the application prospect is good.

The invention relates to a pesticide composition containing ecdysone compounds and application of the pesticide composition. The pesticide composition is composed of flufeniprole and methoxyfenozide or tebufenozide. The pesticide composition has an obvious synergistic effect, and the effects of improving the control effect, reducing the dosage and expanding the insecticidal spectrum are achieved. The pesticide composition disclosed by the invention has an excellent control effect on target pests such as chilo suppressalis, tryporyza incertulas, rice leaf folders, plant hoppers, prodenia litura, beet armyworms, plutella xylostella, cabbage caterpillars, aphids, aleyrodids, thrips and flea beetles.

The invention discloses a botanical formula of a gerbera jamesonii thrip repellent and a preparation method thereof, and belongs to the technical field of botanical pesticides. The formula comprises the following components in parts by weight: 30-35 parts of tea saponin, 30-35 parts of cynanchum komarovii, 15-20 parts of rangooncreeper fruit, 5-8 parts of menthol, 3-5 parts of wormwood extract, polyoxyethylene sorbitan monooleate, ethylene glycol, citric acid or sodium hydroxide and the balance of deionized water, and the proportion of each core component in the optimal formula is accurately optimized. The preparation method comprises the steps of raw material pretreatment, ultrasonic-assisted extraction, slow fire decoction and filtration, concentration, compounding and emulsification, canning and storage and the like, and key process parameters are optimized to guarantee the extraction rate of effective components and product stability. Through the synergistic effect of multiple components, the thrip repellent rate reaches 95.3%-97.8%, the thrip repellent has a remarkable repellent effect on trialeurodes vaporariorum and red spiders, the lasting period is prolonged to 14-18 days, and the thrip repellent is suitable for various flowers and planting scenes.

The application provides a G protein-coupled receptor (GPCR) inhibitor and application of a GPCR gene NPFF2 in pest control, especially in management of resistance of a new nicotine agent of a whitefly. The application is designed for a specific target GPCR, and development of a new insecticide or a related functional product, which can be applied to production and control of pests such as whiteflies, and especially provides application guidance for management of resistance of pests.

The present disclosure relates to insecticidal combinations and compositions comprising two or more insecticide compounds. Particularly, the present disclosure provides insecticidal combinations for controlling insect pest selected from aphids, jassids, and whiteflies in crops such as cotton and okra. The disclosure also relates to corresponding methods and uses thereof.

The invention discloses a whole-cycle green comprehensive management method for waxberries, and belongs to the technical field of agricultural planting. According to the method, the compound microorganism fertilizer is applied underground, mineral oil is continuously sprayed on the ground in multiple growth stages to prevent and control aphids, whiteflies and scale insects, and multiple biostimulant combinations are accurately sprayed in the key phenological stage to comprehensively improve the quality of leaves and fruits. And the problems of demulsification, flocculation and phytotoxicity of mineral oil caused by water hardness in traditional mixing are effectively solved through an innovative barrel mixing process. According to the method, three technical means are systematically integrated to form a synergistic green management system, the problems that in traditional waxberry planting, chemical pesticide dependence is high, and the contradiction between pest control and quality improvement is prominent are effectively solved, and efficient, high-quality and sustainable development of waxberry production is achieved.

The invention discloses an insecticidal preparation based on rosemary-mint mixed oil and a preparation method and application thereof, and belongs to the crossing field of green agriculture and biotechnology. The mixed essential oil is efficiently extracted through an ultrasonic-subcritical coupling extraction process, the rosemary oil extraction rate can reach 12.1%-12.4%, the menthol retention rate reaches 95.2%-97.1%, and the solvent residue is lower than 0.01 mg / kg; a full-plant-source ternary compound system (mixed essential oil, sophora alopecuroide extract and citrus peel oil) is designed, the synergistic coefficients of 50 formulas are all larger than or equal to 1.25, and six types of pests including thrips, red spiders, aphids, whiteflies, plutella xylostella and leafhoppers can be covered; a special application technology for eight types of crops (including tea leaves and traditional Chinese medicinal materials) is established, the quality of the crops reaches the standard after pesticide application, for example, the water extract of the tea leaves is increased by 1.2%, and the astragaloside content meets the standard of Chinese Pharmacopoeia 2020 edition; the storage stability is optimized, the control effect retention rate can reach 94.7% after 6 months of normal-temperature storage, and the requirement of 2-year industrial shelf life can be met; finally, the average reduction rate of the chemical pesticide is 90.3%, and the preparation cost is less than or equal to 80 yuan / kg. The composition can replace chemical pesticides and is suitable for green prevention and control of insect pests of fruits and vegetables, fields, commercial crops and traditional Chinese medicinal materials.

This invention discloses an indoor breeding method for ladybugs, belonging to the field of biological control. This invention uses beet armyworms to partially replace whiteflies, the natural food source for ladybugs at different developmental stages, thereby reducing the amount of whiteflies required. Since the artificial feeding technology for beet armyworms is currently very mature, beet armyworm eggs can be obtained stably and efficiently. Therefore, this invention, by using beet armyworm eggs to partially replace whiteflies, the natural food source for ladybugs, simplifies the indoor breeding process of ladybugs, reduces breeding costs, and has good application prospects.

The invention relates to a compound with a cyclopropane carboxylic acid pyrazole ester structure and application thereof, and belongs to the technical field of pesticides. The structure of the compound is shown in the specification. The invention further provides application of the compound shown in the formula I in prevention and control of agricultural pests. The compound represented by the formula I provided by the invention shows an excellent effect on various pests, especially on prevention or control of pests such as aleyrodidae, aphididae, tetranychidae and glophidae, and the compound has low toxicity.

The utility model provides a device for collecting small insects in the open air, including air suction pump and the air suction hose of connecting air suction pump, still including with the detachable connection of air suction hose intermediate connecting pipe, and with the detachable connection of transparent insect collecting tube of intermediate connecting pipe, the opening is provided in the tail end of insect collecting tube, is fixedly provided with gauze near intermediate connecting pipe one end. The utility model is used for the suction collection of small volume insects, such as thrips, whitefly and the like small volume insects, provides suction force through air suction pump, and air suction hose can realize the operation of various angles, and intermediate connecting pipe is used for connecting air suction hose and insect collecting tube, in order to facilitate production insect collecting tube, avoids the escape of insects, and gauze is fixedly set in the end part, prevents the escape of insects that are sucked into insect collecting tube, and the number of collected insects and the monitoring of insect state are more convenient to observe with the transparent pipe of insect collecting tube, and the tail end opening is plugged after single collection is completed.

The present invention relates to tomato plants having improved insect resistance, more specifically whitefly or mite resistance, comprising the ASAT3 gene encoding an acetyl-CoA-dependent acyltransferase enzyme and the AP2e gene encoding the APETALA2 ethylene-responsive transcription factor. The present invention further relates to methods for preparing tomato plants with improved insect resistance and to the use of the ASAT3 gene in combination with the AP2e gene to provide insect-resistant tomato plants.

The embodiment of the invention discloses a 4-(aryl / alkoxy)-2, 6-dialkyl aniline derivative, a preparation method and application of the 4-(aryl / alkoxy)-2, 6-dialkyl aniline derivative in trialeurodes vaporariorum resistance, and belongs to the technical field of pesticides. The 4-(aryl / alkoxy)-2, 6-dialkyl aniline derivative has a structure as shown in a general formula (I), R1 and R2 are isopropyl, cyclopropyl or n-propyl, R3 is pyridyl, pyrazinyl, phenyl, halogen or trifluoromethyl substituted phenyl and C3-C5 alkyl, and R4 is pyridyl, pyrazinyl, phenyl and C1-C5 alkyl. The 4-(aryl / alkoxy)-2, 6-dialkyl aniline derivative provided by the invention has better trialeurodes vaporariorum resistance activity. The synthesis method provided by the invention is simple, the raw materials are cheap and easy to obtain, and a novel aleyrodid-resistant pesticide is expected to be developed. (I)

The invention discloses an insecticidal composition of a compound medicament for preventing and controlling bemisia tabaci, pea aphid and corn aphid, and belongs to the technical field of pesticides. The invention relates to a plant source compound huperzine A, apigenin and psoralen B, which are respectively compounded with five different emulsifiers to form the plant source compound huperzine A, apigenin and psoralen B, and the emulsifiers mainly comprise any one of sulfosuccinic acid-1, 4-dioctyl ester, fatty alcohol-polyoxyethylene ether, NP-10, Tween 20 and Tween 500. Huperzine A, apigenin, psoralen B and emulsifiers with different concentrations are compounded to obtain the insecticide composition, and the synergistic effect is achieved through the interaction of the emulsifiers and the compound. The compound pesticide is used for preventing and controlling horticultural crop pests such as bemisia tabaci and aphids, the usage amount of the pesticide can be reduced, pesticide residues on crops can be reduced, the preparation process is simple, raw materials are input, all raw materials are converted into finished products, no pollution is caused to the environment, and wide market prospects are achieved.

To provide a tomato plant with improved insect resistance, particularly resistance to whiteflies or mites, the tomato plant including an SlAT2 gene that encodes an acetyl-CoA-dependent acyltransferase enzyme and an AP2e gene that encodes an APETALA2 ethylene-responsive transcription factor.SOLUTION: The present invention relates to methods for preparing a tomato plant having improved insect resistance, and to use of an SlAT2 gene in combination with an AP2e gene for providing an insect-resistant tomato plant.SELECTED DRAWING: None

The invention belongs to the technical field of gene engineering, and particularly discloses application of an epidermal hair regulation and control gene in regulation and control of bemisia tabaci resistance. Based on different infection and damage degrees of bemisia tabaci on 384 parts of upland cotton in a cotton field and by utilizing the data to carry out whole genome association analysis, the inventor preliminarily determines that the GhHD1 finally affects the infection degree of the bemisia tabaci on plants by affecting the number of epidermal hairs. Gene knockout and overexpression experiments are further combined to prove that the GhHD1 can obviously increase the number of epidermal hairs of cotton, but obviously enhance the infectivity to bemisia tabaci. Besides, related verification is carried out in representative crops tomato and cucumber of solanaceae and cucurbitaceae, the number of epidermal hairs is further indicated to be positively correlated with the infectivity of bemisia tabaci, and the mechanism in plants is indicated to be conservative. By combining the results, a good gene genetic resource foundation can be laid for cultivating crops of new bemisia tabaci resistance varieties by utilizing the characteristics of plants.

The invention discloses a flower thrip attractant, namely an attraction plate and application, and belongs to the technical field of biological prevention and control of agricultural insect pests. The attractant comprises trans, trans-farnesol acetate (2E, 6E)-farnesol acetate and paraffin oil, and is characterized in that the attractant is prepared from the following components: trans, trans-farnesol acetate (2E, 6E)-farnesol acetate and paraffin oil. The sunflower field implementation result shows that the attractant can remarkably attract the flower thrips to a sticky trap, so that the number of the flower thrips in the field is reduced. According to the method, forecasting and green prevention and control of the flower thrips can be achieved, use of other chemical pesticides can be reduced, and balance of the ecological environment can be kept.

The invention relates to the technical field of pesticides, and discloses an insecticidal composition containing ethiprole and flonicamid, which is characterized in that the ethiprole and the flonicamid are embedded in biodegradable polylactic acid-glycolic acid copolymer microcapsules; the microcapsules are suspended and dispersed in an aqueous medium containing an acrylic resin film-forming agent, an ultraviolet light absorber and agriculturally acceptable auxiliary materials. Through multi-layer protection and controlled release, the pesticide effect lasting period is effectively prolonged to 15-20 days, the application frequency and the dosage are reduced, and long-acting, efficient and environment-friendly pest control is achieved. The composition disclosed by the invention has excellent suspension stability, redispersibility, wettability and biological activity, and is suitable for being applied by adopting conventional spraying equipment. The insecticidal composition is suitable for preventing and treating various piercing-sucking mouthpart pests, such as aphids, plant hoppers, phylloxera and aleyrodid, and underground pests, such as grub cockroaches and wireworms. The composition can be widely applied to various crops such as rice, cotton, vegetables, fruit trees and tea trees.

The present disclosure relates to a method of controlling whiteflies and other sucking pests, that are known to be resistance against conventional insecticides, by feeding blocker aqueous insecticidal composition comprising: an agrochemically effective amount of Pyrifluquinazon and an agrochemically effective amount of Flonicamid. The present invention also relates to a process for preparing the said composition and its use for crops.

This invention discloses a class of compounds and their uses, belonging to the field of agricultural technology. The compounds provided by this invention have excellent inhibitory activity against insect eggs, especially against the eggs of thrips, mites, lepidopteran moths, whiteflies, and ladybugs, and also have fungicidal activity. Compounds with this structure can be used to kill insect eggs and fungi, and have high research value in pesticides, with broad application prospects in the field of pesticide science.

The invention belongs to the technical field of agricultural biology, and particularly relates to application of a CsSTS gene in resistance of piercing-sucking pests of cucumbers and a breeding method of pest-resistant varieties. The invention finds that the cucumber stachyose synthase gene CsSTS is a key gene for regulating and controlling the resistance of cucumbers to piercing-sucking pests such as aphis gossypii glover and bemisia tabaci. Aphis gossypii infection can significantly inhibit CsSTS gene expression of cucumbers, so that stachyose adverse to pests in a sieve tube solution is reduced, and sucrose preferred by the pests is increased. The CsSTS overexpression transgenic cucumber strain is created through genetic manipulation, CsSTS of the CsSTS overexpression transgenic cucumber strain is continuously and highly expressed, a screen tube liquid maintains a high stachyose level and is not affected by insect pests, and the strain shows strong resistance close to the immune level to aphis gossypii glover and also shows remarkable resistance to bemisia tabaci.

The application provides a parasitic wasp attractant and application thereof, and belongs to the technical field of pest control. The parasitic wasp attractant provided by the application comprises an active ingredient and an organic solvent, the active ingredient is citral, and the concentration of citral in the parasitic wasp attractant is >2 ng / µL. The application adopts citral as the active ingredient of the parasitic wasp attractant, and citral shows a high and stable attracting effect on parasitic wasps such as aphelinids even under trace conditions, so as to be beneficial to improving the parasitization rate and mortality rate of field pests such as whiteflies (specifically, whitefly nymphs). In addition, the application adopts citral as the active ingredient, citral is not only widely sourced and low in cost, but also is environment-friendly and does not cause harm to non-target organisms, and thus conforms to the development trend of modern green agriculture.

The application discloses application of insect adult cytochrome b5 in pest control and belongs to the field of plant protection. Through a molecular cloning technique, the application successfully obtains full-length sequences of two Cyt b5 genes Cyt b5v1 and Cyt b5v2, and confirms that the two genes are in a high expression state in a whitefly resistant population. Double-stranded RNAs, namely dsCyt b5v1 and dsCyt b5v2, are synthesized by using an RNA interference (RNAi) technique, and after feeding treatment, the expression of target genes is significantly inhibited, and the sensitivity of the whitefly to different neonicotinoid insecticides is effectively improved. The application has the core advantages of low toxicity, high efficiency and high safety while realizing high insecticidal activity, and provides important technical support for a green pest control system in a field.

The invention belongs to the field of virus detection, and particularly relates to a method for detecting geminivirus in tomato plants and bemisia tabaci based on an aMIRA-CRISPR / Cas14a system. The invention discloses a method for detecting geminivirus in a tomato plant and bemisia tabaci based on an aMIRA-CRISPR / Cas14a system. The method comprises the following steps: 1) performing DNA extraction on a tomato plant sample and the bemisia tabaci; 2) specifically amplifying target genes of geminivirus in tomato plants and bemisia tabaci through an asymmetric multi-enzyme constant-temperature rapid amplification technology to obtain an aMIRA amplification product; and 3) a CRISPR / Cas14a system is adopted, and specific sgRNA is designed to recognize single-stranded DNA in an amplification product, so that non-specific cleavage activity of Cas14a is activated, a fluorescent probe is cleaved, release of a fluorescent signal and interpretation of a detection result are realized, and accurate detection of a target virus is realized. The invention develops an AI enhanced MaC14a platform, based on a portable centrifugal microfluidic system, an aMIRA amplification technology and a CRISPR / Cas14a recognition mechanism are integrated, and onsite visual rapid and sensitive detection of geminivirus in tomato and bemisia tabaci can be realized.

The invention provides a green comprehensive prevention and control method for greenhouse tomato summer virus diseases, and belongs to the technical field of tomato planting. According to the method, vector insects such as bemisia tabaci and the like are intercepted through medicament fumigation in a greenhouse and trapping of a yellow insect sticking plate before seedling raising in a seedbed, and then the occurrence of tomato virus diseases is remarkably reduced through internal regulation and peripheral interception of facilities, facility optimization for coping with high temperature in summer and finally accurate intervention of a mixed synergist. According to the method, through closed-loop management of interception, regulation and killing, the population density of bemisia tabaci in the greenhouse can be effectively controlled to be below an economic threshold value, so that the occurrence rate of tomato virus diseases is reduced to be below 20%, and the yield of greenhouse tomatoes in summer is increased.

The invention belongs to the technical field of plant pest control, and discloses application of verticillium lecanii in tomato pest control. According to the method, the verticillium lecanii JMC-01 (the preservation number is CCTCC NO: M2018303) is effectively colonized in tomato plants through an endophytic colonization technology, after colonization, the verticillium lecanii JMC-01 can induce the tomato plants to significantly increase defensive enzyme activity, and the insect resistance of tomatoes is enhanced through transcriptome regulation and control. After the bemisia tabaci eats tomato plants fixed with verticillium lecanii JMC-01, the fatality rate is remarkably increased, the developmental duration is prolonged, and the greenhouse control effect reaches 59.35%; meanwhile, tomato volatile substances such as (3E)-3-hexene-1-ol and the like induced by the verticillium lecanii JMC-01 have a remarkable repelling effect on the bemisia tabaci. The invention provides a new strategy for green prevention and control of tomato pests, and has important agricultural application value.

The invention provides a slow-release environment-friendly tablet for preventing diseases and insect pests and a preparation method thereof. The tablet for preventing diseases and insect pests comprises the following components in parts by weight: 5-20 parts of an organic phosphorus medicament, 30-60 parts of modified camphor tree essential oil, 1-10 parts of a tackifier, 1-5 parts of a release agent, 5-20 parts of a filler and 1-10 parts of a stabilizer. The prepared tablet for preventing diseases and insect pests has a good repelling effect on common aphids, whiteflies and the like in agriculture, also has a good repelling effect on pests such as cockroaches and the like which are easy to appear in public places, has the advantages of high efficiency, long acting, safety and the like, and can be popularized and applied in a large scale.

This invention discloses an RNAi recombinant vector resistant to both whitefly and tomato yellow leaf curl virus (TYLCV), its construction method, and its applications. The method involves constructing a DNAβ promoter associated with a geminivirus expressed in the phloem into the RNAi vector pCambia1391, obtaining a 1391::DNAβpro vector backbone. RT-PCR is used to amplify a partial fragment of the whitefly key gene BtACTB, a key region of TYLCV (including the intergenic spacer region for viral replication initiation, some coat proteins, and replication-related proteins), and its inverted repeat sequences. This constructs a recombinant vector with an inverted hairpin structure driven by the phloem promoter, simultaneously targeting key sequences of both whitefly and TYLCV. The constructed recombinant vector is then introduced into tomatoes via Agrobacterium-mediated transformation. Screening yields tomato plants that reduce whitefly survival and inhibit TYLCV infection.

The invention belongs to the technical field of pesticides, and particularly relates to a preparation method and application of pyridopyrimidinedione containing an isoxazole unit. The compound is shown as a general formula I, wherein X independently represents O or S; r1 independently represents hydrogen, methyl or the like; r2 independently represents an aryl group, a heterocyclic group or the like; the compound has an excellent prevention and treatment effect on pests such as pea aphid, brown planthopper and bemisia tabaci.

The invention relates to the technical field of insect feeding trend analysis, in particular to a bemisia tabaci feeding trend analysis method and system based on artificial intelligence. The method comprises the following steps: extracting a three-dimensional behavior track of an insect from a stabilized video sequence by using an attention-enhanced YOLO network, and analyzing track segments marked with feeding events through track dynamics and a posture sequence to obtain a feeding event sequence; obtaining behavioral chemical decision-making features through multi-head attention mining of the correlation weight of the feeding event sequence and the dynamic response features of the volatile matters; based on the three-dimensional behavior track and the plant phenotypic features, track plant interaction features are obtained through a space-time diagram neural network with track points as nodes; and in combination with plant phenotypic characteristics, behavioral chemical decision-making characteristics and track plant interaction characteristics, multi-source perception fusion tropism decision-making modeling of deep reinforcement learning is utilized to predict feeding hot spot distribution of the bemisia tabaci group. According to the invention, deep fusion of multi-source data can be realized, and the feeding trend can be accurately analyzed.