59 results about "Psylla" patented technology

Provided herein are methods of reducing a psyllid pest population comprising contacting the psyllid with a bacterial pesticidal protein.

The invention relates to the technical field of citrus insect pest prevention and control, and discloses a comprehensive ecological prevention and control method for diaphorina citri. The method comprises the following steps: acquiring current insect pest state information based on real-time monitoring data of a citrus planting area; extracting diaphorina citri biological characteristics and associated ecological environment characteristics through the ecological characteristic library to form an initial ecological characteristic set; fusing the real-time monitoring data with the initial ecological feature set to generate a dynamic ecological feature set; calculating the priority score of each prevention and control strategy according to the spatial and temporal distribution density, migration trend intensity, natural enemy inhibition coefficient, host plant resistance index and environmental stress factor of each feature in the dynamic set; generating a strategy sorting table in a descending order according to the scores, sequentially selecting to-be-executed strategies, and judging whether the to-be-executed strategies complete the target population density reduction amount or not in a preset period. According to the method, real-time data and ecological characteristics are combined, the strategy is dynamically adjusted, and the prevention and control accuracy and effectiveness are improved.

The invention relates to the technical field of pest catching, and particularly discloses a phylloxera catching device for lycium barbarum trees, comprising: an annular frame, the annular frame comprises a semi-ring sleeve, the semi-ring sleeve is provided with a first mounting port, and the first mounting port forms a closed annular structure through a closing member mounted on the semi-ring sleeve; the insect catching cover comprises two semi-ring covers, the diameter of the semi-ring covers is larger than that of the annular frame, and the two semi-ring covers are detachably spliced to form an annular structure; the insect catching cover is arranged on the surface of the annular frame in a sleeving mode. Through the assembling mode of the annular frame and the insect catching cover relative to the Chinese wolfberry trees, the tree shapes of the existing planted Chinese wolfberry trees are effectively utilized, and the farmland installation space is saved. The wind direction is sensed through the wind direction sensing assembly, and the insect catching cover can rotate along with the wind direction in cooperation with the driving assembly, so that the second insect inlet hole in the insect catching cover is located on the leeward side all the time, and the phylloxera can be effectively caught in windy weather through the wind sheltering performance of the phylloxera.

The invention belongs to the technical field of agricultural biological control, and discloses a method for controlling summer shoots of Gannan navel oranges by insects, which comprises the following steps: S1, in the early germination stage of the summer shoots of the navel oranges in early May, putting 3-4 Acrida cinerea imagoes every 8m according to the projection area of a tree crown; s2, in the summer shoot germination peak period in the first ten days of June, the release amount of acrida cinerea is increased to 6-8 acrida cinerea per 8 m. By means of shoot control mechanism innovation, grasshoppers specifically gnaw young shoot growing points, side bud germination is prevented from being stimulated, and the vicious circle of'more and more wipe 'is blocked from the biological level; the shoot control efficiency is increased, the shoot control rate can reach 99.2% or above by the putting amount of 3-4 shoots per 8m, and the whole summer shoot growing period is covered continuously and periodically; the feeding rate of old leaves is strictly controlled to be 3.6% or below, the influence on the photosynthesis of a tree body is avoided, a precise shoot control technology is achieved based on biological habits, efficient and safe shoot control treatment is achieved, the survival conditions of diaphorina citri are worsened, the occurrence of the Huanglongbing is reduced, and the economic benefits of navel orange planting are improved.

The utility model discloses a citrus reiculata Blanco planting disease and insect pest monitoring device which comprises a monitoring frame, a movable monitoring assembly is installed on the outer surface of the front end of the monitoring frame, and the monitoring frame comprises a supporting rod, a cross beam, a phylloxera attractant, a sticky plate, a hanging ring and a connecting rope. The mobile monitoring assembly comprises a base plate, a cantilever rod, a drag chain groove, a movable block, a top plate, a supporting frame, a camera, a servo motor, a first sliding groove, a second sliding groove, a guide rail, a gear, a mounting cavity, a toothed plate and a rotating shaft, the number of the supporting rods is two, the number of the cross beams is two, and the two cross beams are fixedly mounted on the upper portion between the two supporting rods. According to the citrus reiculata Blanco planting disease and insect pest monitoring device, the sticky plates can be conveniently hung through the monitoring frame, use is convenient, the camera can be conveniently driven to conduct movable monitoring among the multiple sets of sticky plates through the movable monitoring assembly, and monitoring convenience is improved.

The invention discloses an application of paenibacillus mucilaginosus PS04 in repelling insects. The preservation number of the paenibacillus mucilaginosus PS04 is CGMCC (China General Microbiological Culture Collection Center) CN0: 7996. The invention finds that the paenibacillus mucilaginosus PS04 strain has a remarkable repelling effect on the diaphorina citri and can be used for preventing and treating the diaphorina citri, so that the paenibacillus mucilaginosus PS04 strain can be developed into a stable preparation with a good insect repelling effect.

The invention belongs to the technical field of genetic engineering, and particularly relates to application of diaphorina citri transferrin Tsf in prevention and control of citrus huanglongbing. The invention provides an application of diaphorina citri transferrin Tsf in prevention and control of citrus huanglongbing. A nucleotide sequence for coding a gene of the diaphorina citri transferrin Tsf is shown as SEQ ID NO.1. The invention further provides a preparation method of the diaphorina citri transferrin Tsf. According to the invention, the expression of transferrin Tsf in diaphorina citri can be interfered, so that the infection ability of Candidatus Liberobacter asiaticum can be reduced, the bacterium carrying amount can be reduced, a new strategy is provided for effective prevention and control of the Candidatus Liberobacter asiaticum, and a new prevention and control idea is provided for controlling propagation of bacterial pathogens by means of vector insects.

The invention belongs to the technical field of agricultural pest control, and particularly relates to a comprehensive ecological prevention and control method for diaphorina citri. The comprehensive ecological prevention and control method for diaphorina citri comprises the following steps: establishing an isolation net wall around a citrus orchard, and planting nectariferous plants in the isolation net wall. The isolation net wall is a 40-mesh plastic insect-proof net and can prevent phylloxera from flying into the net. The honey source plant refers to cnidium monnieri, and the cnidium monnieri planted between the rows of the fruit trees can conserve and proliferate natural enemies and enhance the biological control effect of natural enemies on phylloxera. According to the method, physical prevention and control are combined with biological prevention and control, the number of diaphorina citri can be effectively reduced, prevention and control pressure is relieved, and the method is of great significance to ecological regulation and control of diaphorina citri and green development of the navel orange industry.

The invention provides a navel orange disease and insect pest comprehensive prevention and control method based on a full-net-covering facility and application thereof, and relates to the technical field of agricultural disease and insect pest prevention and control. Comprising the following steps that a net shed is built in a navel orange planting area in a full net covering mode, and a 30% spirodiclofen and SYP-9625 suspending agent is selected for preventing and treating citrus red mites. According to the method, the net shed of a full-net-covering facility is built for physically preventing and controlling the diaphorina citri, the diaphorina citri is completely prevented from entering the net, the transmission medium of the Candidatus Liberobacter asiaticum is cut off, the dangerous disease of the Candidatus Liberobacter asiaticum is stably and completely eradicated, and the harm of the Candidatus red mites in the net shed is low by controlling the Candidatus red mites through efficient chemical agents. Through the synergistic effect of the two prevention and control, diseases and insect pests seriously harmful to citrus can be effectively controlled, the comprehensive prevention and control effect is remarkably improved, the yield and quality of citrus fruits are improved, and remarkable economic, social and ecological benefits are achieved.

The application discloses a kind of citrus psylla intelligent detection method and device based on deep learning, method includes the following steps: S1, acquisition citrus psylla color image under natural orchard scene, pre-treatment is carried out to acquisition image, and citrus psylla dataset is made;S2, improvement YOLOv5-s network model, using citrus psylla dataset is iteratively trained to improved YOLOv5-s network model, and optimal model is obtained and used as psyllid detection model;S3, using 2 pairs of servo steering engine is formed rotatable holder and carries variable zoom camera and forms image collector;Psyllid detection model is deployed to embedded device, and using the equipment control image collector;S4, the image obtained by image collector is input into psyllid detection model and is identified, determines whether there is citrus psylla in the image photographed and its position.The method and device of the application can be deployed in natural orchard, and the citrus plants in a certain distance range are efficiently and intelligently monitored to determine whether there is citrus psylla.

The present invention discloses an attractant composition for adult citrus psyllids and its use. The composition comprises the following components by weight: 0.1-1.1 parts of α-phellandrene, 0.1-0.8 parts of 1-butyl-2-isobutyl phthalate, 4.6-5.6 parts of trans-nerolidol, and 3.5-4.5 parts of β-caryophyllene. The synergist provided by the present invention is inexpensive, can reduce the cost of producing the attractant core, and is suitable for widespread promotion.

The present application belongs to the technical field of agricultural compositions, and relates to an agricultural composition for preventing and treating populus euphratica wood lice. The present application provides an agricultural composition for preventing and treating populus euphratica wood lice, wherein the effective components are composed of fluopyram and echinacoside, and the mass ratio of fluopyram to echinacoside is 1:1-37.5. It is found through insecticidal effect verification that echinacoside has a synergistic effect on the chemical insecticidal component fluopyram, and the combination of the two can effectively reduce the effective component dosage of chemical pesticides, fully exert the efficacy of fluopyram, as much as possible reduce the probability of populus euphratica wood lice developing drug resistance, reduce environmental pollution, and improve the effect of fluopyram.

The application discloses DcPDF The application discloses application of a gene and a dsRNA in preventing and treating citrus psylla DcPDF The nucleotide sequence of the gene is shown as SEQ ID NO. 1. The application can significantly inhibit the development of the ovary of a female citrus psylla and significantly reduce the oviposition amount by feeding the citrus psylla with a dsRNA targeting a nucleotide sequence shown as SEQ ID NO. 13 to reduce the expression level of a neuropeptide pigment dispersing factor gene. The application provides a new efficient target for green prevention and treatment of citrus psylla based on RNA interference technology, and helps to realize pesticide reduction and efficiency increase, and delay development of pest resistance.

The invention discloses a Chinese wolfberry phylloxera attractant and application of a lure containing the attractant. Lycium barbarum phylloxera is one of main pests of lycium barbarum. According to the application disclosed by the invention, volatile matters of the overground part of Chinese wolfberry are taken as a research starting point, the (1S)-(-)-camphor is found to have an obvious trapping effect on the Chinese wolfberry phylloxera, and the trapping core containing the (1S)-(-)-camphor shows an obvious trapping effect on the Chinese wolfberry phylloxera in field trapping effect evaluation. Therefore, the (1S)-(-)-camphor can be used as the phylloxera lycephala attractant, and the lure containing the attractant can be used for trapping the phylloxera lycephala, so that the dependence on chemical pesticides is reduced, and the green prevention and control requirements are met.

The application discloses a carvyl composition for preventing and treating psyllospora, and belongs to the technical field of disease and pest control. The composition comprises the following components in parts by weight: carvyl 1-10 parts, neem essential oil 1-20 parts, alkyl polyglycoside 1-15 parts, cationic surfactant 1-15 parts, and stabilizer 1-15 parts. The carvyl and the neem essential oil in the application are both natural insecticides, and as main insecticidal components, the two are combined together to have a synergistic effect on preventing and treating psyllospora, and achieve excellent insecticidal effect. The specific cationic surfactant and the non-ionic surfactant alkyl polyglycoside are added, and the two have a synergistic effect, are dissolved in water during use, can form a micellar state in water, wrap the carvyl and the neem essential oil therein, make the carvyl and the neem essential oil have a slow-release effect, can improve the killing effect of the overall composition on psyllospora adults, can also wrap and kill the eggs of the psyllospora, and prevent continuous outbreak of the psyllospora.

The application relates to the technical field of citrus pest prevention and control, and discloses a comprehensive ecological prevention and control method for citrus psylla. The method obtains current pest state information based on real-time monitoring data of a citrus planting area; extracts biological characteristics of the citrus psylla and related ecological environment characteristics through an ecological characteristic library to form an initial ecological characteristic set; fuses the real-time monitoring data and the initial ecological characteristic set to generate a dynamic ecological characteristic set; calculates the priority scores of various prevention and control strategies according to the spatial and temporal distribution density, migration trend intensity, natural enemy inhibition coefficient, host plant resistance index and environmental stress factor of each characteristic in the dynamic set; generates a strategy ranking table in descending order of the scores, selects the to-be-executed strategies in sequence, and judges whether the target pest density reduction amount is completed within a preset period. The method combines real-time data and ecological characteristics, dynamically adjusts the strategies, and improves the accuracy and effectiveness of the prevention and control.

The invention discloses an application of a DcPDF gene and dsRNA thereof in prevention and treatment of diaphorina citri. By feeding diaphorina citri with dsRNA with a targeting nucleotide sequence as shown in SEQ ID NO.13, the expression level of the neuropeptide pigment dispersing factor gene DcPDF (the nucleotide sequence is as shown in SEQ ID NO.1) is reduced, development of ovary of female diaphorina citri can be remarkably inhibited, and the egg laying amount is remarkably reduced. The invention provides a new efficient target for green prevention and control of diaphorina citri based on an RNA interference technology, is beneficial to realizing pesticide reduction and synergism, and delays the development of pest resistance to drugs.

The invention discloses a RanGAP1 gene and an application of the RanGAP1 gene in regulating and controlling the reproduction of female diaphorina citri. The nucleotide sequence of the DcRanGAP1 gene is shown as SEQ ID NO.9. After female diaphorina citri subjected to eclosion for 8 days down-regulates expression of the DcRanGAP1 gene, the early stage of egg laying is remarkably prolonged, the egg laying period is remarkably shortened, the egg laying amount is remarkably reduced, development of an ovary is remarkably inhibited, and the titer of the Huanglongbing in the ovary is remarkably reduced, so that the purpose of preventing and treating the diaphorina citri is achieved, and the diaphorina citri can be used for preventing and treating the diaphorina citri. A new thought is provided for preventing and treating the Huanglongbing.

The utility model discloses a citrus psylla attractant slow -release device, solve the problem that present device cannot switch sealed and release state. The device includes bottle body, the cover plate of hinged in the bottle mouth and the connecting cylinder, and the connecting cylinder is sealed through the cooperation of first sealing protrusion and bottom first limit slot when being inserted into bottle body completely, and is matched with middle part second limit slot when being half inserted, and its aeration structure and volatile hole are aligned to release attractant. The bottle mouth is equipped with volatile groove, and the cover plate connecting seat and the bottle mouth interference fit enhance the sealing property. The device switches state through the insertion depth of connecting cylinder, and is sealed and prevents leakage when transporting, and is uniformly slow -released when using, avoids the defect that traditional empty bottle transportation and release are uncontrollable, realizes "transportation seal -use release " automatic switching, promotes the operation convenience, accurately control release rate, enhances the trapping effect, is applicable to citrus psylla control.

The invention relates to the technical field of agriculture, and particularly discloses a method for preventing citrus canker and phylloxera and application. According to the method, different prevention agents are sprayed in the spring shoot period, the flowering period, the late summer shoot period and the autumn shoot period of plants respectively, so that the purpose of efficiently preventing and treating citrus canker and phylloxera is achieved. By means of the method for preventing the citrus canker and the phylloxera, the citrus canker and the phylloxera can be effectively prevented, plants suffering from the citrus canker and the phylloxera can be treated, and the method is easy and convenient to operate and free of toxic and side effects. The invention effectively solves the problems that a single chemical agent is easy to generate drug resistance in the prior art, the research and development cost of a biological agent is high, and the prevention and treatment effects of the chemical agent and the biological agent are limited.

The application discloses DcFoxO A gene and application thereof in preventing and treating Toxoptera citricola. DcFoxO The nucleotide sequence of the gene is shown as SEQ ID NO. 1. The application discloses a gene of Toxoptera citricola DcFoxO The gene is highly expressed in the midgut of Toxoptera citricola, and the gene is targeted by feeding dsRNA to Toxoptera citricola DcFoxO It is found that the oviposition period of a female Toxoptera citricola is shortened, the oviposition amount is reduced, the ovary development is abnormal, and the titre of Candidatus Liberibacter asiaticum is reduced, the prevention and treatment effect on Toxoptera citricola is remarkable, and the gene has a good application prospect.

The present application belongs to the technical field of fruit tree disease prevention and control, and particularly relates to a method for removing sporadic citrus Huanglongbing trees in citrus orchards. According to the epidemiological characteristics of citrus Huanglongbing, the control strategy of 'completely removing diseased plants, strictly preventing and controlling citrus psyllids, and comprehensively preventing and controlling' is implemented at sporadic disease points in the diffusion front area. The sporadic disease point orchards are promptly cleaned of diseased trees, and the diffusion front area is comprehensively prevented and controlled to prevent the disease from occurring again. In this way, disease information and risk warnings can be promptly released, the removal of diseased trees and the strict prevention and control of citrus psyllids can be achieved, the invasion and reproduction of exogenous psyllids can be hindered, the risk of healthy seedlings getting sick can be reduced, and the spread of citrus Huanglongbing can be blocked. The present application provides technical support for delaying the further spread of citrus Huanglongbing and saves human and material resources.

The invention relates to the field of plant protection, in particular to a psylla chinensis nymph prevention and control composition based on plant source composite synergism and a preparation method thereof.The psylla chinensis nymph prevention and control composition specifically comprises cottonseed oil, an organosilicon surfactant, glycerol, white granulated sugar and ethyl alcohol, and the formula proportion of all the components is as follows: the use concentration of the cottonseed oil is 2-3.3 ml / L, the use concentration of the organosilicon surfactant is 1-3 ml / L, and the use concentration of the glycerol is 1-3 ml / L; the use concentration of the organic silicon surfactant is 100-300mL / L, the use concentration of the glycerol is 0.5-1mL / L, the use concentration of the white granulated sugar is 0.3-0.5 g / L, and the use concentration of the ethanol is 0.25-0.45 ml / L. The bactericidal composition is non-toxic, harmless to human, livestock and tree bodies after being used, remarkable in control effect on psylla chinensis, and has a certain cleaning effect on honeydew secreted by psylla chinensis. The pesticide is green, environment-friendly, free of residues and pollution and good in prevention and treatment effect.

The present invention relates to a Cladosporium subuliformewz‑1 and a cultivation method and application thereof, specifically a Cladosporium subuliformewz‑1 and a cultivation method thereof and an application thereof in the prevention and control of citrus psyllids. In the present invention, Cladosporium subuliformewz‑1 is separated from citrus psyllid dead insects that died naturally in the wild, and was deposited in the Guangdong Provincial Microbiological Culture Collection Center on March 17, 2022, with a preservation address of 5th Floor, Building 59, No. 100, Xianlie Middle Road, Guangzhou, and a preservation number of GDMCC No. 62319. Cladosporium subuliformewz‑1 can be cultured through PDA culture medium, and the spores produced by its growth can be used to prevent and control citrus psyllids, which is environmentally friendly and reduces pesticide residues.

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.

This invention provides the application of the citrus psyllid salivary gland gene DcPS2 in the control of citrus psyllids and Huanglongbing (HLB). The nucleotide sequence of the citrus psyllid salivary gland gene DcPS2 is shown in SEQ ID NO. 1. This invention introduces dsDcPS2 into psyllids and measures the effect of DcPS2 gene silencing on psyllid survival. Experimental results show that after DcPS2 gene silencing, the mortality rate of citrus psyllids significantly increased compared to the control dsGFP, which has significant value for the control of citrus psyllids and the cultivation of psyllid-resistant plants.

1. Name of the product under this design: test kit. 2. Purpose of this design product: used to contain various reagents for detecting the field pesticide resistance of wolfberry psyllids. 3. The key design points of this product are the combination of shape, pattern and color. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The design for which protection is sought includes color.

The application belongs to the field of citrus psylla feeding, and particularly relates to a citrus psylla feeding device, which comprises a feeding net room, wherein, ninebarrel cypress is planted; a wind cylinder is arranged on one side of the feeding net room, and a putting hole is formed in the wind cylinder; a through pipe is in communication with the wind cylinder and the feeding net room at two ends, respectively, a plurality of liquid leakage holes are arranged at the bottom of the through pipe, a plurality of water inlet holes are arranged at the top of the through pipe, a plurality of atomizing nozzles in communication with the plurality of water inlet holes are arranged in the through pipe, and the water inlet holes are provided with filter screens; a water tank is arranged on one side of the through pipe, disinfectant is contained in the water tank, and a water pump is arranged in the water tank; and a water pipe is in communication with the side wall of the water tank and extends above the through pipe, and the water pipe is provided with a plurality of water inlet cylinders in communication with the plurality of water inlet holes.

The present invention provides a breeding, collecting and releasing device for bright-bellied enameled wasps, which relates to the field of bee breeding and releasing technology. It is used to cultivate and release bright-bellied enameled wasps to achieve the effect of preventing and controlling citrus psyllids. The present invention includes a light guide unit, a breeding unit, a breeding unit, a release unit and a transfer unit arranged in a light-shielding room to eliminate the interference effect of external light. The breeding unit is used to place bright-bellied enameled wasps adults required for production, and the breeding unit is used for the output, growth and development of its bright-bellied enameled wasp larvae. Finally, the mature bright-bellied enameled wasp adults are transferred and released into a citrus forest that needs to prevent and control citrus psyllids through the release unit. The bright-bellied enameled wasps are transferred in the breeding unit, the breeding unit and the release unit in sequence through the cooperation of the light guide unit and the transfer unit, thereby avoiding the escape of the bright-bellied enameled wasps. The operation process is automatic and efficient, which saves time and labor compared to manual operation, and effectively improves the prevention and control effect of citrus psyllids.

The present invention discloses a method for reducing the ability of citrus psyllids to acquire Huanglongbing bacteria using water-soluble ZnO quantum dots, belonging to the technical field of controlling the spread of citrus Huanglongbing disease. The present invention discloses a method for reducing the ability of citrus psyllids to acquire Huanglongbing bacteria using water-soluble ZnO quantum dots. The method utilizes the antibacterial properties of the water-soluble ZnO quantum dots and feeds them into the bodies of citrus psyllids. The results demonstrate that the water-soluble ZnO quantum dots not only penetrate the bodies of citrus psyllids, reducing their ability to acquire Huanglongbing bacteria, but also have no toxic effects on plants and can even promote plant growth to a certain extent. Based on these results, the method can effectively control the spread of Huanglongbing disease from citrus psyllids to healthy citrus plants, reducing the risk of healthy plants becoming infected, and addressing the adverse environmental and ecological impacts of existing technologies for controlling citrus psyllids.