44 results about "Aphid" patented technology

The invention provides an insecticide delivery preparation based on binary synergistic nanoparticles and a preparation method thereof, an IMI (at) AgNPs (at) CMSNs compound is prepared, and the binary system remarkably overcomes the drug resistance of cotton aphid to imidacloprid by integrating silver nanoparticles (AgNPs) and mesoporous silica nanoparticles (MSNs).

The present application relates to the field of insect control, and particularly relates to a SIRT1 gene of Rhopalosiphum padi and application thereof and a method for controlling Rhopalosiphum padi. The gene encodes a protein with an amino acid sequence as shown in SEQ ID NO: 2. The present application finds that the SIRT1 gene plays a role in the growth and development of Rhopalosiphum padi. Inhibition of the expression of SIRT1 can significantly increase the mortality rate of Rhopalosiphum padi nymphs, significantly reduce the proportion of winged aphids, and ultimately cause the population to decline and the toxin transmission ability to weaken. By using RNA interference technology, it is found that inhibition of the expression of the SIRT1 gene of Rhopalosiphum padi can significantly increase the mortality rate of the nymphs, and significantly reduce the proportion of winged adults after development. In addition, by spraying dsRNA of the SIRT1 gene interference sequence of Rhopalosiphum padi encapsulated by a nano material, the mortality rate of the Rhopalosiphum padi nymphs is significantly increased.

The plant source insecticide contains effective components of parathion and avermectin, the weight ratio of parathion and avermectin is 10-50:1, and is supplemented with an acceptable agricultural adjuvant to form one of emulsifiable concentrate, wettable powder, water dispersible granule, water emulsion or suspension agent suitable for agricultural use, and belongs to the field of pesticides. The plant source insecticide shows activity on peridroma saucia, aphid and cotton red spider, especially high acaricidal activity on red spider. The prevention and treatment effect on citrus red spider is obviously improved after parathion and avermectin are compounded, which shows that the combination of parathion and avermectin has significant synergistic effect on citrus red spider. Parathion is derived from Chinese herbal medicine plant, and there is no problem of pesticide residue, and the risk of drug damage is greatly reduced. At the same time, the two single agents of the composition have great difference in chemical structure and completely different action mechanism, and there is no cross resistance, which can delay the resistance problem caused by the use of the two single agents alone.

The invention discloses a light-weight empoasca flavescens insect attack detection method based on deep learning, relates to the technical field of agricultural disease detection, and is used for solving the problem that the disease condition cannot be quickly and comprehensively mastered when tea empoasca flavescens is manually detected. Comprising the following steps: S1, making a tea lesser leafhopper original data set containing different environment variables in a real tea garden environment; s2, dividing the marked image data into a training set, a verification set and a test set; and S3, constructing an improved tea lesser leafhopper detection model based on Yolov. And S4, training the Yov-based improved tea lesser leafhopper detection model constructed in the step S3 by using the training set in the step S2 to obtain a final optimization model. And S5, detecting the tea lesser leafhoppers trapped in the tea garden by adopting the optimization model finally obtained in the step S4 to obtain a detection result. And S6, deploying and putting into use. The problems of time and labor consumption and low efficiency of artificial pest detection are solved, labor force is liberated, cost input is reduced, and practicability is high.

The application relates to the technical field of agricultural pest control, and specifically discloses an emergency disposal method for a cotton aphid outbreak in a dwarf and densely planted apple orchard. The method first completes three-dimensional containment by constructing a surface isolation belt, a main stem closed loop and an underground transverse blocking wall, simultaneously carries out insect source tracing and marking and pre-closed disposal, then sequentially implements underground insect source precise killing, crown layer time period precise killing, and finally realizes long-term protection through whole cycle closed loop control. The application is matched with a containment and repellent composition, an underground insect source disposal composition, a crown layer killing special composition and a killing paste, each composition is adapted to the scene requirement of the corresponding disposal link, the preparation process is simple, and the composition can be prepared and used immediately. The method can be used for emergency prevention and control after the cotton aphid outbreak in the dwarf and densely planted apple orchard, can quickly curb the spread of the cotton aphid in the whole orchard, greatly reduces the prevention and control difficulty, has high efficiency, long-term effect and safety, and can also be adapted to the special prevention and control scene before apple picking.

The utility model relates to the technical field of wheat planting, especially to a wheat planting insect prevention and killing device, which comprises a supporting seat, a supporting shaft is installed on the top of the supporting seat, the supporting shaft is slidably connected to an installation plate through a moving hole, a supporting outer thread is arranged on the outer surface of the supporting shaft, the supporting outer thread is threadedly connected to the inner surface of a lower supporting cylinder, a plurality of connecting shafts are connected to the circumferential surface of the installation plate, the outer surface of the connecting shafts is slidably connected to the inner surface of a connecting cylinder, the connecting cylinder is installed on the side of a yellow plate, the connecting shafts connected to the circumferential surface of the installation plate are arranged, the installation of a plurality of yellow plates can be realized, the installation plate is circular, the connecting shafts are equidistantly and circumferentially distributed, the yellow plates are equidistantly and circumferentially distributed above the supporting seat, the adhesive surface of the circular plate can be directed to different directions, the insect killing operation on the wheat aphids in multiple directions can be realized, and the common operation of the yellow plates can effectively increase the insect killing area of the device.

The invention relates to a sex pheromone of eutrophia maca and application of the sex pheromone. The sex pheromone of the eupolymyza cochinchinensis is 9, 12, 15-octadecatrienoic acid ethyl ester, and the sex pheromone of the eupolymyza cochinchinensis can be used for inducing male adults of the eupolymyza cochinchinensis or increasing the mating rate of the male adults and female adults of the eupolymyza cochinchinensis.

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 invention discloses a comprehensive prevention and control method for tobacco pepper vein mottle virus disease, which comprises the following steps: S1, optimizing agricultural layout and preparing a field parcel: selecting an area far away from a vegetable field, a curing barn and an airing shed as a seedling raising and planting field, removing weeds in the seedling raising and planting field, then intercropping gramineous crops, and deeply ploughing and sunning upturned soil before winter; s2, prevention and control management in a seedling raising period: detecting pathogens, preventing and controlling diseases and pests, and managing, cleaning and disinfecting facilities; the application not only pays attention to reasonable use of pesticides, but also combines physical prevention and control (such as covering an insect-proof net), biological prevention and control and agricultural management (such as crop rotation and weed removal) to form a comprehensive prevention and control system; the virus resistance of the tobacco can be effectively improved, and meanwhile, the influence on the environment is reduced; aphidius avenae is used for biological control, biological insecticides (such as sophocarpidine and azadirachtin) are released to be alternately used with chemical agents, natural enemies are effectively utilized for pest control, and use of the chemical agents is reduced.

The invention is suitable for the technical field of pest control, and provides application of cinnamyl aldehyde in control of agricultural pest macrosiphum avenae. The application effect of the cinnamyl aldehyde in prevention and treatment of the agricultural pest sitobion avenae is defined, and the application effect is specifically shown as follows: in the action activity, the cinnamyl aldehyde has remarkable repelling, fumigating and contact killing effects on the sitobion avenae; on the influence of growth and development, the cinnamyl aldehyde treatment can significantly prolong the period and the earlier stage of reproduction of macrosiphum avenae, shorten the life of adults, the period of reproduction and the earlier stage of aphid production, reduce the amount of aphids produced by single female aphids, significantly reduce population parameters such as intrinsic growth rate, weekly limit growth rate and net value-added rate, effectively inhibit population growth, and improve the survival rate of macrosiphum avenae. Meanwhile, the macrosiphum avenae is abnormal in embryonic development, difficult in ecdysis, dead and malformation of winged aphids. In conclusion, the cinnamyl aldehyde has double effects of directly preventing and controlling the sitobion avenae and inhibiting population growth on the sitobion avenae, has the potential of being developed into a green pesticide due to high safety and low residue, and provides a new way for comprehensive treatment of the sitobion avenae.

The invention relates to a plasma activated water enhancement-based pesticide composition and application thereof, and aims to solve the technical problems of drug resistance crisis, environmental residue pollution and unstable control effect existing in chemical control of cotton aphids. Plasma activated water (PAW) and neonicotinoid / picolinamide insecticides are compounded to form a synergistic system with the concentration of LC10-LC75, oriented application is conducted on the basis of the insect age adaptation rule (imidacloprid is used for evaluation for 24 h, flonicamid is used for evaluation for young aphids, 72 h is used for evaluation for young aphids), the epidermis structure of cotton aphids is destroyed through reactive oxygen nitrogen substances (RONS) in the PAW, the permeability of the pesticides is enhanced, and therefore the cotton aphids with the concentration of LC10-LC75 are obtained. The comprehensive technical effects of remarkably improving the fatality rate of the cotton aphids at each age, reducing the pesticide dosage, reducing environmental residues and delaying the development of drug resistance are achieved.

This invention relates to the field of smart plant protection technology, specifically a method for detecting winged aphids on sticky traps based on a two-level coordinate collaborative network. The method includes the following steps: collecting and standardizing images of winged aphids on sticky traps to construct a target detection dataset containing target size features; constructing a PCSNet-YOLOv12 target detection model, using YOLOv12 as the baseline model, setting a two-level coordinate attention (CA) module in its backbone network, adding a shallow feature extraction branch in its neck network, and introducing a Shape-NWD loss function to optimize the model's bounding box regression process. This invention provides an effective technical solution for constructing a real-time, automated intelligent pest monitoring system, and has significant application value in promoting the intelligent transformation of pest monitoring and green prevention and control practices.

The invention provides a construction method and application of a chrysanthemum aphid resistance prediction system based on whole genome selection. According to the method, SNP loci remarkably related to the aphid resistance of the chrysanthemum are identified through whole genome association analysis, the influence of different statistical models and SNP markers with different densities on the whole genome prediction precision is compared, the method for rapidly, efficiently and accurately predicting the aphid resistance of the chrysanthemum based on GWAS-assisted whole genome selection is established, and the prediction accuracy can reach 0.882. The whole genome selection system constructed based on the method can realize early selection of the aphid resistance of the chrysanthemum, accelerates the breeding process of the excellent new variety of aphid resistance of the chrysanthemum, saves the breeding cost, effectively overcomes the technical problems that the field aphid resistance identification work is tedious, long in period and easy to be influenced by environmental factors and human subjective factors and the like, and improves the identification efficiency of the aphid resistance of the chrysanthemum. The method has important theoretical and practical significance.

This invention belongs to the field of agricultural nanoparticle formulations and green pest control technology, specifically relating to an insecticide nano-synergist Cu-TA, its preparation method, and its application. The Cu-TA consists of nanoparticles formed by the coordination assembly of copper ions and tannic acid. The Cu-TA can be used in combination with various insecticides to increase the sensitivity of brown planthoppers, white-backed planthoppers, cotton aphids, rice stem borers, and common thrips to pesticides, and to improve the field control effect on brown planthoppers. Furthermore, the combined use of Cu-TA and acetamiprid can reduce the actual heritability of resistance to acetamiprid in brown planthoppers, thereby delaying the development of resistance.

The invention belongs to the technical field of biological prevention and control, and provides a dsRNA nucleic acid pesticide for preventing and controlling cedar macroptera longipes and application of the dsRNA nucleic acid pesticide for preventing and controlling cedar macroptera longipes, and the application is that a dsRNA sequence of Aminopeptidase is used for silencing expression of Aminopeptidase. According to the invention, by synthesizing the dsRNA sequence, the effect of the dsRNA sequence in Aminopeptidase expression and the aphid killing effect are evaluated; the result shows that the dsRNA sequence corresponding to the Aminopeptidase of the cedar aphis longibrachii can effectively inhibit the expression of the Aminopeptidase, so that the cedar aphis longibrachii is killed, and the purpose of pest control is achieved.

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 present application belongs to the technical field of agricultural pest prevention and control, and particularly relates to a spined cucumber bug saliva protein RP426 with HAMP activity and application thereof. The present application first identifies saliva protein RP426 secreted into soybean by spined cucumber bugs during feeding through mass spectrometry, and further researches and confirms that RP426 is a novel HAMP molecule, can activate the PTI response of plants, induce early ROS burst and up-regulated expression of defense-related genes, thereby enhancing the resistance of plants to pathogenic bacteria and phytophagous pests. The spined cucumber bug saliva protein RP426 provided by the present application makes up for the deficiency of existing Spodoptera litura prevention and control measures, reduces the use of chemical pesticides, and provides a new way for improving the resistance of plants to pathogenic bacteria and the resistance of plants to phytophagous pests.

The invention relates to pyridino [1, 2-a] pyrimidine mesoion derivatives containing a pyrazole structure as well as a preparation method and application of the pyridino [1, 2-a] pyrimidine mesoion derivatives. The compound disclosed by the invention has a structure shown as a formula (I), has excellent insecticidal activity on spodoptera frugiperda, chilo suppressalis, plutella xylostella, ostrinia nubilalis, aphis aphis and the like, and can be used for preparing drugs or medicaments for preventing and treating pests such as spodoptera frugiperda, chilo suppressalis, plutella xylostella, ostrinia nubilalis, aphis aphis and the like. The structure and the preparation process are simple, and the production cost is low. (I).

The utility model belongs to algae-eating insect cultivation technical field especially relates to algae-eating insect screening cultivation device, including incubator and support leg, the support leg fixed mounting is in the cultivation box bottom all around, the inside of cultivation box is provided with cultivation device, the cultivation device includes screening mechanism, washes screening mechanism, cleaning mechanism and aeration mechanism, the screening mechanism sets up in the inside of cultivation box, washes screening mechanism and set up in the back of cultivation box, the cleaning mechanism sets up in the inside of cultivation box bottom, the aeration mechanism sets up in the inside of cultivation box lower extreme. This algae-eating insect screening cultivation device, through setting up screening mechanism, through the starting motor through output shaft drive disc rotation, disc rotation drives mounting seat one eccentric rotation under the action of ball head rod, pulls screening box and reciprocates along the guide rod left and right and shakes, thereby makes the young algae-eating insect to pass through screening box, realizes the separation of larva and adult, prevents adult predation larva, improves the algae-eating insect cultivation efficiency.

The application discloses a steinernema feltiae biological control agent for preventing and treating various pests and application thereof. The various pests include spodoptera litura, poplar leaf-feeding caterpillar, pea aphid and short horned locust. The application studies the infection activity difference of different strains of steinernema feltiae on four different agricultural pests, and understands the prevention and treatment effect of different strains of steinernema feltiae on different insects. Meanwhile, the application also studies the sensitivity difference of biological control natural enemy insects braconidae and serangium japonicum to steinernema feltiae, studies the infection activity on pests and the infection activity on natural enemy insects, and comprehensively discusses the application prospect of steinernema feltiae, which not only lays a foundation for the joint biological control of natural enemy insects and insect pathogenic nematodes, but also helps to determine the best application scene in agricultural production, and then improves the efficiency and overall effect of biological control, and better prevention and treatment effect can be produced when facing a complex harmful organism prevention and treatment environment.

The invention relates to an organic greenhouse strawberry pest synergistic prevention and control method based on a storage plant system, and belongs to the field of agricultural organic planting biological prevention and control. The savory plant system is composed of daisy as savory plants, macrosiphum avenae as preys and insects as natural enemies; according to the method, the daisy is used as a unique core storage plant and is used for attracting and bearing preys and natural enemies; the prey is a microsiphum avenae pure population artificially inoculated on the daisy and is used as an exclusive food source of the natural enemy; the natural enemies comprise ladybugs, orius minutus and nematode plants, and synergistically proliferate to form a composite natural enemy community, so that the natural enemies are directionally diffused to strawberry plants and pests are prevented and controlled.

The invention discloses an N-sulfonyl / benzenesulfonyl / heteroarylsulfonyl pyrrolo-sophocarpidine derivative as well as a preparation method and application of the N-sulfonyl / benzenesulfonyl / heteroarylsulfonyl pyrrolo-sophocarpidine derivative. The structural general formula of the N-sulfonyl / benzenesulfonyl / heteroarylsulfonyl pyrrolo-sophocarpidine derivative disclosed by the invention is as shown in a formula I; experiments show that the N-sulfonyl / benzenesulfonyl / heteroarylsulfonyl pyrrolo-sophocarpidine derivative disclosed by the invention has relatively good insecticidal activity on wing-free adult aphis citricola; compared with sophocarpine, the insecticidal activity of the sophocarpine is obviously improved. The method can be used for preparing efficient, environment-friendly and low-toxicity insecticides.

This invention relates to a sex pheromone of the large gray aphid fly and its application. The large gray aphid fly sex pheromone is ethyl 9,12,15-octadecyltrienoate, which can be used to attract large gray aphid flies (…). Eupeodes corollas Male adults or increase the number of large gray aphid flies ( Eupeodes corollas The mating rate between male and female adults.

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 a pyrido [1, 2-a] pyrimidine mesoion derivative containing an alkynyl ferrocene structure as well as a preparation method and application of the pyrido [1, 2-a] pyrimidine mesoion derivative. The compound disclosed by the invention has a structure shown in a formula [I], has excellent insecticidal activity on spodoptera frugiperda, ostrinia nubilalis, cutworms, plant hoppers, aphis avenae and the like, and can be used for preparing drugs or medicaments for preventing and treating pests such as spodoptera frugiperda, ostrinia nubilalis, cutworms, sogatella furcifera, brown planthoppers, aphis avenae and the like. The structure and the preparation process are simple, and the production cost is low.

The application relates to the technical field of agricultural pest monitoring, and particularly discloses a real-time temperature monitoring system for aphidius gossypii based on a sensor, which aims to solve the technical problems of precise temperature sensing and intelligent analysis and decision-making capability in a microhabitat. The system comprises a microhabitat sensor array unit, a data fusion processing unit and a biological activity evaluation unit. A plurality of miniature temperature sensors are arranged in the habitat area of aphidius gossypii to collect multi-point temperature data. A regional temperature distribution map is generated through data fusion by means of a spatial interpolation algorithm. An activity index is calculated in combination with a temperature response model, so that the functions of temperature anomaly early warning and release timing recommendation are realized. The system effectively improves the precision and timeliness of biological control management.

The invention discloses a two-stage artificial breeding method for Harpactor fuscipes, and belongs to the technical field of biological control of agricultural pests, and the method comprises the following steps: breeding bean aphids by planting broad beans, and breeding newly hatched Harpactor fuscipes by using the bean aphids; then mulberry leaves are used for breeding silkworms, 1-3-year-old silkworm larvae are used for breeding 2-5-year-old sacharius fuscipes nymphs, the sacharius fuscipes nymphs and adult sacharius fuscipes are used for hunting lepidoptera pests in an orchard, and harm of the lepidoptera pests to fruit trees is reduced. The method utilizes low-value materials, is low in cost and simple to operate, can effectively reduce the population density of lepidoptera pests in the orchard and reduce fruit loss of the orchard, and has a wide application prospect in the field of orchard pest control.

This invention belongs to the field of pesticide and phytochemistry technology, specifically relating to an insecticidal alkaloid compound from *Prunus persica* var. *pinnata*, its preparation method, and its application. The structure of the *Prunus persica* var. *pinnata* alkaloid compound is shown below. This alkaloid compound, isolated from *Prunus persica* var. *pinnata*, is designated as compound Pactermine X. It is a novel alkaloid isolated from *Prunus persica* var. *pinnata*. Its stomach poison and repellency activities against pea aphids were determined. The results showed that compound Pactermine X exhibited strong LC50 activity against pea aphids at 48 h. 50 The concentration was 0.272 mg / mL. At concentrations of 0.5 mg / mL, 0.25 mg / mL, 0.125 mg / mL, and 0.0625 mg / mL, the avoidance rates over 12 hours were 100%, 72.5%, 42.5%, and 30%, respectively.

The application discloses a kind of dsRNA of Sitobion avenae CYP4C1 gene and application thereof, relate to the technical field of agricultural pest control, the cDNA of Sitobion avenae CYP4C1 gene is cloned in the application, its nucleotide sequence is as shown in SEQ ID NO.1;And the dsRNA of the gene is prepared, nucleotide sequence is as shown in SEQ ID NO.2;The preparation method of the dsRNA includes total RNA extraction, cDNA synthesis, target gene cloning, T7 promoter fragment amplification and in vitro transcription purification steps;The dsRNA of Sitobion avenae CYP4C1 gene and application thereof, by feeding method, the dsRNA is introduced into the 3rd instar nymph of Sitobion avenae, and after feeding 48h, CYP4C1 gene silencing efficiency reaches 58%, can significantly reduce the survival rate and the amount of aphid of Sitobion avenae on imidacloprid seed dressing wheat seedling, target strong, prevention and control effect is remarkable, no chemical residue.

The invention relates to the technical field of pesticides, in particular to an insecticide composition for effectively preventing and treating cotton aphid and application. The pesticide composition comprises an active component A and an active component B, the active ingredient A is flufenacil; the active ingredient B is carbosulfan or sulfoxaflor; the mass ratio of the active component A to the active component B is 1: (2-8) or (2-8): 1. The pesticide composition with a synergistic effect in the field of cotton aphid prevention and control is obtained through research, has a remarkable higher prevention and control effect on cotton aphids when being compounded according to a specific proportion, is suitable for cotton aphid prevention and control of various cotton aphid harmful plants, has the characteristics of high efficiency, low toxicity and sustainability, and has an important application value.