34 results about "Leafhopper" patented technology

The present application relates to the technical field of cotton leafhopper control, and particularly relates to a composition for preventing and treating cotton leafhopper, an insecticide and application thereof and a preparation method thereof.The composition comprises dinotefuran, potassium dihydrogen phosphate, orange peel essential oil and eucalyptus oil, wherein the mass fraction of dinotefuran is 67.5-94.5 parts, the mass fraction of potassium dihydrogen phosphate is 900 parts, the mass fraction of orange peel essential oil is 900 parts, and the mass fraction of eucalyptus oil is 7.5 parts.The insecticide in the present application can not only achieve better control effect, but also reduce the dosage of dinotefuran when applied to the control of cotton leafhopper, so as to effectively delay the development of drug resistance of cotton leafhopper.

The invention discloses an application of an RdCDC3 gene in precise prevention and control of a rice pest leafhopper. The invention provides a substance for reducing the content or activity of RdCDC3 protein or inhibiting the expression of a coding gene of the RdCDC3 protein. The substance is applied to any one of the following applications: A1) inducing natural enemies of leafhoppers to eat; a2) preventing and controlling leafhoppers; a3) preventing and controlling plant diseases caused or mediated by leafhoppers; a4) preparing a product for inducing the natural enemy of leafhopper to eat; a5) preparing a product for preventing and controlling leafhoppers; a6) preparing a product for preventing and controlling leafhopper-caused or mediated plant diseases; according to the present invention, with the artificially prepared RdCDC3 targeting siRNA, the RdCDC3 in the leafhopper egg can be effectively silenced, such that the accurate targeting can be performed on the RdCDC3 target spot; by means of the method, the leafhopper can be effectively controlled on the premise that ecological balance is not damaged, and a new technical scheme is provided for green agricultural prevention and control.

The invention relates to the field of chemical pesticides, in particular to a 40% diafenthiuron-flonicamid suspending agent and a preparation method thereof. The 40% diafenthiuron-flonicamid suspending agent provided by the invention is prepared from the following raw materials in parts by mass: 30 to 40 parts of diafenthiuron active compound, 5 to 10 parts of flonicamid active compound, 5 to 10 parts of dispersing agent, 1 to 10 parts of anti-freezing agent, 0.1 to 10 parts of thickening agent, 0.1 to 1 part of functional additive and 30 to 50 parts of deionized water. Wherein the dispersing agent comprises a comb-shaped high-molecular carboxylate dispersing agent, a sulfate dispersing agent and a nonionic block polyether wetting dispersing agent. Through screening of the dispersing agent and the thickening agent, the prepared suspending agent is high in stability, has a relatively good insecticidal effect on tea lesser leafhopper, and is efficient and safe in actual use.

A kind of tea processing preparation process, it is related to tea processing technical field, solve the problem of different water content of tea fresh leaves due to different degree of sucking and biting of small green leafhopper adults and nymphs and different time interval from sucking and biting to picking.The preparation process includes fresh leaf pretreatment, collision green and aroma enhancement, steam + high hot air fixation, spreading, striping, drying, screening and picking, aroma enhancement and packaging.In the fresh leaf pretreatment process, small green leafhopper adults are put in, and small green leafhoppers are attracted to suck and bite fresh leaves by yellow light.In the collision green process, tea fresh leaves are made to jump by vibration to carry out collision green treatment.The present application solves the problem of different degree of fresh leaf water loss due to different degree of sucking and biting of small green leafhopper adults and nymphs and different time interval from sucking and biting to picking by putting small green leafhopper adults and nymphs to concentrate sucking and biting of tea fresh leaves.Meanwhile, the quality of cicada tea is effectively improved by temperature and humidity control, light supplement, collision green and aroma enhancement, steam + high hot air fixation.

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.

The utility model discloses a kind of viscose traps for preventing and treating tea small green leafhoppers, including support frame, install the insect sticking frame of support frame, install the insect sticking plate and first side extension plate of insect sticking frame, install the collection box of support frame, install the fixing nail of insect sticking frame, install the ground-inserting fixing part of support frame, ground-inserting fixing part has multiple interval setting barbs, insect sticking frame has integrally arranged second side extension plate, insect sticking plate is installed in insect sticking frame by fixing nail, collection box is located below insect sticking frame, first side extension plate and second side extension plate are matched and set, insect sticking plate, first side extension plate, fixing nail, second side extension plate and ground-inserting fixing part are multiple and interval setting, first side extension plate and second side extension plate are all set in inclined shape;Insect sticking frame is provided with multiple interval setting insect sticking grooves, insect sticking plate is placed in insect sticking groove, the depth of insect sticking groove is greater than the thickness of insect sticking plate.

This invention provides an insecticidal microemulsion composition of flonicamid and spinosad, which can be used to control various pests such as aphids, leafhoppers, planthoppers, and thrips, and is particularly effective against eggplant thrips. The addition of polyether-modified organosilicon as a synergist significantly enhances the efficacy of the flonicamid and spinosad microemulsion. The polyether-modified organosilicon also reduces the persistent foaming of the pesticide, preventing foaming and thus reducing its effectiveness.

The present invention relates to a method for controlling insect infestation in stone fruits, the method comprising applying a nicotinic acetylcholine receptor (nAChR) competitive modulator to a locus or plant part of a plant or plant propagation material. The invention further relates to a method for controlling leafhopper infestation in mango cultivation or orchards using said nicotinic acetylcholine receptor (nAChR) competitive modulators.

The application provides a preparation method of a cowpea leafhopper repellent and application thereof, and belongs to the technical field of green prevention and control of agricultural pests. The preparation method is as follows: activated biochar obtained by microwave pyrolysis of straw powder and activated by phosphoric acid is mixed with intercalated montmorillonite-PVA compound obtained by intercalating aluminum ions into montmorillonite and modifying the intercalated montmorillonite with polyvinyl alcohol, and then the mixture is modified with KH-550 to obtain a supported controlled-release carrier; linalool, geraniol and methyl salicylate are loaded on the supported controlled-release carrier to prepare a core; trans-2-hexenal and trans-2-octenal are loaded on the core to prepare a core-shell structure microsphere; the core-shell structure microsphere is coated with poly-N-isopropyl acrylamide to prepare a multi-stage controlled-release microsphere; and the multi-stage controlled-release microsphere is used to prepare the cowpea leafhopper repellent for preventing and controlling cowpea leafhoppers. The application improves the loading capacity and adsorption stability of active components, and improves the compatibility with the wax layer of cowpea leaves. The preparation of the application shows fast effect and long persistence.

This utility model relates to the field of insect hemolymph collection technology, and discloses a leafhopper hemolymph collection device, including a collection tube, a rubber stopper at the opening of the collection tube, a negative pressure cylinder, a liquid collection tube with an insertion needle at one end, and a positioning component for positioning the collection tube. The other end of the liquid collection tube passes through the rubber stopper and is connected to the collection tube. The rubber stopper is tightly fitted to the opening of the collection tube. An air inlet is opened at the upper part of the negative pressure cylinder, and a bent tube is fixedly inserted into the air inlet of the negative pressure cylinder. The bent tube is fixedly inserted into the rubber stopper and is connected to the collection tube. The positioning component includes an upper sleeve with an opening at the lower end, a lower sleeve with an opening at the upper end, and multiple arc-shaped positioning blocks made of elastic rubber. The purpose is to provide a device for collecting leafhopper hemolymph and to solve the problem that existing insect hemolymph extraction devices require insertion and removal of the suction hose and liquid collection hose on the sealing cap during use, resulting in a complex structure and inconvenience in use.

The invention discloses a traditional Chinese medicine compound preparation for green prevention and control of cowpea thrips, and relates to the technical field of cowpea thrip prevention and control. According to the preparation disclosed by the invention, various traditional Chinese medicines such as monarch medicines, ministerial medicines, assistants and guides of traditional Chinese medicines are used for synergistically preventing and controlling cowpea thrips, contact toxicity, stomach toxicity and avoidance are generated on cowpea thrips to interfere growth activities, and green prevention and control effects are generated on the thrips at multiple sites; pesticide residues caused by chemical pesticides can be eliminated, real zero pesticide residues are achieved, and the standard of green ecology and organic vegetables is achieved; the efficient, safe and environment-friendly traditional Chinese medicine compound insecticidal preparation is creatively developed by deeply fusing the traditional Chinese medicine theory, principle essence and modern plant protection science, not only has outstanding creativity and novelty in formula and action mechanism, but also shows strong practicability in raw material, production, use and effect, and has a wide application prospect. The invention provides an overall solution technical scheme with great market prospect and technical value for sustainable treatment of cowpea thrips and development of green ecological agriculture.

The utility model discloses a kind of with leafhopper luring and killing function's leafhopper monitoring trapping device, belong to leafhopper trapping field, including located at top's protective cover, located in middle's double section light source trapping connecting cylinder, located at bottom's support cylinder seat, solar panel is provided on protective cover, the inside of protective cover is provided for monitoring leafhopper trapping condition's monitoring sensing module, double section light source trapping connecting cylinder includes the main light source trapping cylinder for trapping leafhopper inside hollow, the inside hollow auxiliary light source trapping cylinder for trapping leafhopper, the top of main light source trapping cylinder is connected with protective cover by magnetic attraction structure.

The invention relates to the technical field of gene engineering, and discloses a rice stripe mosaic virus (RSMV) expression vector, a gene silencing vector, a preparation method and application. The rice stripe mosaic virus vector composition provided by the invention comprises a construction body used for transcriptional generation of virus anti-genome RNA, a construction body used for expressing trans-acting protein necessary for virus replication and transcription, and a construction body used for expressing a virus silencing suppressor. By utilizing the combination of the components, the recombinant RSMV with infection activity can be obtained in nicotiana benthamiana cells, and the recombinant virus can be further introduced into a mediator insect electro-optic leafhopper through micro-injection and is inoculated to a rice plant through the electro-optic leafhopper to establish systemic infection. The invention provides application of the recombinant virus vector in expression of foreign proteins or silence of endogenous genes in electro-optic leafhoppers and rice bodies and the like. The vector has the advantages of strong exogenous fragment bearing capacity, high genetic stability and the like.

The present application relates to a kind of tea tree planting in the monitoring method of pest control, it includes the following steps: a, first adopt main network to carry out feature extraction to image sample, shallow feature of image sample is simultaneously selected and regression operation is carried out;B, the deep feature in each layer of main network is gradually stacked to shallow feature by the way of up-sampling and convolution layer combination in each layer;C, the deep feature of each layer of main network is fused with the shallow feature of each layer after corresponding stacking again, as the output layer of neural network, and complete the regression identification of tea green leafhopper;Meanwhile, according to the identification and regression operation result combination demarcated yellow board range, complete the deduplication processing of the same position tea green leafhopper repeated identification on different output layer, finally quantity is calculated.The monitoring method can efficiently complete the identification, counting of tea green leafhopper, and the judgment accuracy is high, time-saving and labor-saving, saves manual cost.

This disclosure provides a method for alleviating the damaging effects of D. maidis in corn crops, which involves the use of plant defense elicitors such as jasmonates and salicylates.

The invention discloses a method and a special kit for rapidly detecting sodium ion channel K1774N mutation of methrips vigna, and belongs to the technical field of biological detection. The method mainly comprises the following steps: 1) extracting DNA (Deoxyribose Nucleic Acid) of the cowpea 2) carrying out PCR amplification by adopting two groups of primer pairs; (3) result judgment: when a 269bp band appears in amplification of the first group of primer pairs, the detected sodion channel gene mutation site K1774N of the cowpea megthrips spp sample is not mutated; when a 269bp band appears in amplification of the second group of primer pairs, the detected sodion channel gene mutation site K1774N of the cowpea megaluthrips spp sample is mutated, and when no band appears, the detected cowpea megaluthrips spp sample is not mutated. According to the application, the mutation condition of the field cowpea megthrip K1774N mutation site can be quickly and effectively detected, and the real-time state of pyrethroid resistance of the field cowpea megthrip is effectively detected.

This invention discloses a method for large-scale breeding and preservation of the tea green leafhopper suitable for cicada tea production. Step 1: Select Jin Xuan, Cui Yu, or Fuding Da Bai tea as the host plant variety and determine the host plant specifications; Step 2: Establish adult tea green leafhopper breeding areas, nymph breeding areas, and egg incubation areas, and breed in separate zones, optimizing the optimal breeding conditions and stocking density for each zone; Step 3: Optimize the method for collecting tea green leafhopper eggs, including optimizing the adult sex ratio, egg-laying density, and egg collection time; Step 4: Establish a tea green leafhopper egg storage room and optimize the storage conditions; Step 5: Optimize the incubation conditions and incubation time for tea green leafhopper eggs after low-temperature storage. This invention's large-scale production method utilizes unpruned tea branches from tea gardens, resulting in low costs. Using tea branches for breeding reduces the mortality rate of leafhoppers needing to readjust to the host plant upon release.

The invention discloses a method for artificially feeding tea lesser leafhopper egg parasitic wasps by using brown planthopper eggs and application, and relates to the technical field of biological prevention and control of agricultural pests. By utilizing the advantages that brown planthopper eggs and tea lesser leafhopper eggs are similar in size and development condition, and the brown planthopper eggs are easier to produce in batches, the tea lesser leafhopper egg parasitic wasps can actively parasitize the brown planthopper eggs through step-by-step domestication, and the offspring of the parasitic wasps can be developed and eclosed into adults in the brown planthopper eggs, so that the survival rate of the tea lesser leafhopper eggs is increased, and the survival rate of the tea lesser leafhopper eggs is increased. The possibility is provided for artificial batch feeding of tea lesser leafhopper egg parasitic wasps.

The invention discloses a tea tree exogenous induced insect-resistant agent based on synergistic interaction of jasmonic acid methyl ester and salicylic acid as well as a preparation method and application of the tea tree exogenous induced insect-resistant agent, and belongs to the technical field of biological control. Based on the synergistic interaction of jasmonic acid methyl ester and salicylic acid, tea geometrid and tea lesser leafhopper are repelled, and parasitic wasps and hoverflies in a tea garden are lured. Synergistic interaction is achieved through the specific proportion of jasmonic acid methyl ester and salicylic acid, a tea tree jasmonic acid and salicylic acid double insect-resistant signal pathway is activated, the total amount and the component fraction of volatile matter generated through induction are remarkably higher than those generated through single elicitor treatment, the population number of pest natural enemy parasitic wasps in a tea garden can be increased by 1.52 times through field tests, and the pest control effect is good. The number of hoverfly populations is increased by 1.33 times, the number of tea lesser leafhopper populations is reduced by 40.5%, the number of tea geometrid populations is reduced by 60%, and the insect-resistant effect can be maintained for 15 days.

The present application belongs to the field of kiwi fruit planting, and discloses a management method of kiwi fruit trees. The present application adopts a double-layer reverse U-shaped ring cutting method, which can slow down the downward transportation of photosynthetic products to a large extent and for a long time, effectively improves the yield and quality of kiwi fruit, reduces the risk of tree death, and balances the vegetative growth and reproductive growth of kiwi fruit. In addition, the present application provides a new type of composite control agent for brown spot disease and leafhoppers, which can more efficiently and scientifically control diseases and pests, thereby significantly improving the yield and quality of kiwi fruit.

The application discloses a high-latitude cicada tea processing device and a processing method, relates to the technical field of cicada tea processing, and aims to solve the problem of different product tea qualities caused by different water contents of fresh tea leaves due to different degrees of piercing, sucking and biting of the fresh tea leaves and different time intervals from piercing, sucking and biting to picking. The preparation device comprises grading equipment, spreading equipment, collision equipment, fixation equipment and yellowing equipment. The preparation process comprises fresh leaf grading, spreading, collision, fixation, yellowing, rolling, drying, screening and picking, re-firing and packaging. Through the grading of fresh leaves, temperature and humidity control, light supplementing, spreading, collision, steam and high-heat fixation and drum-type yellowing in sequence, the application effectively improves the appearance, color, luster, aroma, richness and taste of the cicada tea, and improves the overall quality. According to the water content of the fresh leaves and the biting degree of the leafhoppers, the fresh leaves are graded, and different grades of fresh leaves are processed respectively, so that the consistency of the cicada tea quality is ensured.

The invention relates to the technical field of tea lesser leafhopper cultivation, in particular to a tea lesser leafhopper under-forest cultivation and tea garden release method which comprises the steps that a nursery garden is arranged under a forest, and tea tree seedlings are cultivated through cultivation bags; tea tree branches with tea lesser leafhopper eggs are collected from May to June and are inserted into culture bags in a cuttage mode, and under-forest cultivation is conducted; net cages are arranged in the tea garden, and tea trees with leafhoppers are moved into the net cages to be temporarily bred in the valley period of leafhopper populations in the tea garden from July to August; opening the net cage to release leafhoppers when new shoots of the tea trees germinate. Through combination of under-forest near-natural culture and net cage transition adaptation, the survival rate and colonization ability of the tea lesser leafhopper in a tea garden are remarkably improved, annual stable supply of leafhopper populations is achieved, standardized and continuous production of'cicada tea 'is effectively supported, and the method has the advantages of being easy and convenient to operate, ecologically compatible and easy to popularize.

The application discloses a preparation for influencing the tropotaxis behavior of leafhoppers and application of the preparation in leafhopper attraction or avoidance, and belongs to the technical field of pest control. The preparation for influencing the tropotaxis behavior of leafhoppers has effective components containing at least one of phenylacetone, pinene, linalool, ocimene, linalool oxide, alpha-pinene, sabinene, eucalyptol, heptadecane and p-cymene. The combined and screened attractants have a significant attraction effect on leafhoppers, and after the attractants are prepared into the preparation, the preparation can be applied to leafhopper attraction in a field, and the effect is remarkable.

The present application belongs to the technical field of biological pesticides, and particularly relates to a biological pesticide composition for preventing and treating cowpea leafhoppers. The effective component of the biological pesticide is compounded by Java Cordyceps bacteria and abamectin or spinetoram; wherein the Java Cordyceps bacteria is 500 billion spores / gram of Java Cordyceps bacteria JS001. When the Java Cordyceps bacteria is compounded with abamectin or spinetoram in the biological pesticide composition, the cowpea leafhoppers show a synergistic effect, the prevention and treatment effect can be improved, the pesticide usage amount can be reduced, and the prevention and treatment cost can be reduced.

The application provides a tea green leafhopper disaster prediction method based on a self-attention mechanism, comprising obtaining a data set, using a sliding window method on the data set to generate time series samples, constructing a tea green leafhopper number prediction model, the tea green leafhopper number prediction model being based on an LSTM neural network and a multi-head self-attention mechanism, inputting the data set into the tea green leafhopper number prediction model for prediction to obtain the current leafhopper population number of the tea green leafhopper, calculating a population change rate according to the current leafhopper population number, and issuing a tea green leafhopper disaster risk prompt according to the population change rate. The application adopts a sliding window method to construct time series data samples to fuse multi-source time series data and biological physical mechanisms. A double-layer LSTM module and a multi-head attention mechanism are adopted to construct a tea green leafhopper number prediction model, so that high rank expression and task self-adaptation are realized without increasing parameters, and the disaster risk of the tea green leafhopper is accurately and dynamically quantified.

The invention belongs to the technical field of microbial fermentation and insect pest prevention and control, and particularly relates to application of a biopesticide to prevention and control of tea lesser leafhopper. The bacillus velezensis NM153 supernate is used for treating the tea lesser leafhopper, and the result shows that the tea lesser leafhopper can be observed to die in quantity after being treated for about 12 hours under the treatment of the bacillus velezensis NM153 supernate, and the death rate reaches 52.2%, so that the supernate has good quick-acting property, is suitable for practical application scenes in which insect pests need to be quickly controlled, and has wide application prospects. And the death rate of the tea lesser leafhopper at 24 hours reaches 91.1%. In addition, it is further verified that monensin, natamycin and dehydrohirsutine in metabolites of the bacillus velezensis NM153 have remarkable technical effects on prevention and treatment of tea lesser leafhopper.

The invention discloses an application of a double-stranded RNA molecule and a related biological material thereof in prevention and control of megalustris usitatus, and relates to the technical field of prevention and control of agricultural pests. The double-stranded RNA molecule provided by the invention is targeted to the Muhsp68 gene of the megalurothrips megalurothrips, and the coding sequence of the Muhsp68 gene is SEQ ID NO: 1. The double-stranded RNA molecule provided by the invention can effectively interfere with the expression of the megalurothrips megalurothrips Muhsp68 gene, thereby causing death of the megalurothrips megalurothrips; the double-stranded RNA molecule is further applied together with a biogenic pesticide, so that the death rate of the megalurothrips megalurothrips can be further improved. Precise prevention and control of the megalurothrips megalurothrips can be achieved, the prevention and control efficiency of biological source pesticides is improved, and the method has good application prospects and agricultural sustainable development value.

The application provides a suspension agent containing flonicamid and indoxacarb and a preparation method thereof. The suspension agent uses a compound thickening agent, cooperates with a specific antifreezing agent, determines a proper raw material adding sequence and a preparation step, and determines process parameters such as shearing time and grinding temperature, so as to avoid situations such as clumping or caking and decomposition of active ingredients which are prone to occur in the preparation process of the suspension agent, and is suitable for large-scale industrial production. The suspension agent has good stability and remarkable drug efficacy. Field tests show that the suspension agent has a control effect of more than 95% on the rice brown planthopper and the tea green leafhopper, has a long effective period, is safe to crops, and is environment-friendly.

This invention discloses a method and system for predicting the small green leafhopper in tea gardens based on a population dynamics model. The system acquires data on tea garden zoning, tea tree phenology, historical pest infestations, overwintering pest populations, and daily meteorological data to construct a structured pest life model and calculate the basic pest population dynamics for each sub-region. Combining pest monitoring with meteorological terminals, control operations and typical meteorological processes are abstracted as events. These events are triggered during model operation to correct the population state, and an assimilation algorithm is used to correct the model's predictions and observed data, yielding the posterior population state. Based on the posterior state, forward simulations of different control schemes are performed to assess pest risk and establish control windows and recommended schemes. The system consists of modules for data management, population modeling, monitoring access, event scheduling, assimilation, and prediction evaluation, enabling small green leafhopper infestation prediction and control decision support.