45 results about "Beet armyworm" patented technology

The invention provides a YOLOv11-based beet armyworm prediction method and system, and the method comprises the steps: constructing an image data set through employing YOLOv11 in combination with the day and night activity characteristics of beet armyworms; and constructing an anti-interference feature library. And constructing a space-time attention enhanced LSTM-GRU hybrid network, introducing an insect pest migration diffusion matrix and a growth period dynamic weight mechanism, and outputting a beet armyworm occurrence prediction result. According to the method, the image data set is constructed, feature alignment and fusion are realized through processing, and the target detection accuracy is improved. And an insect pest migration diffusion matrix and a growth period dynamic weight mechanism are introduced, so that cross-region migration path quantitative prediction is realized, and prediction is more accurate. Interference targets are eliminated by means of an anti-interference feature library and a filtering algorithm, weighting processing is performed on features and information in combination with a network, a three-dimensional prediction result is output, a full-chain solution is formed, and the accuracy, dynamic performance and anti-interference capability of beet armyworm prediction are improved.

This invention belongs to the field of agricultural and forestry biotechnology, and relates to a method utilizing... 60 A method to increase the oviposition rate of beet armyworm by Co-γ irradiation was used. Beet armyworm pupae within 12 hours of pupal instar were collected and subjected to effective accumulated temperature treatment. Then, for male beet armyworm pupae, [further methods were employed]. 60 Co-source irradiation treatment; irradiated male beet armyworm pupae and unirradiated female pupae were placed in an incubator to cultivate and emerge as adults. The adults were then transferred to adult rearing cages and supplemented with honey water for nutrition. This invention, through effective accumulated temperature treatment, selects a large number of uniformly developed male beet armyworm pupae as irradiation targets. While ensuring emergence rate and adult lifespan, it significantly increases the egg production of beet armyworms and the yield of test insects. The operation process is simple, safe, and reliable. It provides a large source of production insects for the convenient and rapid use of beet armyworms to produce the biological control agent nucleopolyhedrovirus, and for using the insect as a host to propagate natural enemy parasitic wasps.

The invention belongs to the technical field of pesticides, and particularly relates to a heterocyclic substituted pyridine compound, a preparation method thereof, an insecticidal composition and application. The compound is shown as a general formula I, wherein R1, R2, R4, R5, R6, R8, R9 and R10 respectively and independently represent hydrogen, halogen, alkyl, alkenyl and the like; r3 represents hydrogen, an alkyl group, a haloalkyl group, an alkenyl group or the like; and R7 represents halogen. The compound has excellent prevention and treatment effects on spodoptera frugiperda, armyworm, prodenia litura, beet armyworm, agrotis ypsilon, chilo suppressalis, plutella xylostella, brown planthopper, rhopalosiphum padi and the like.

The invention discloses a composition containing a turmeric analogue and application of the composition in an insecticide. The structural formula of the turmeric analogue is (E)-3-((1H-indole-3-yl) methylene)-5-((E)-4-mercaptobenzylidene)-1-methylpiperidine-4-thioketone. The turmeric analogue is synthesized through multi-step reaction, including aldehyde acylation, cyclization, thiolation reaction and condensation reaction. Insecticidal experiments show that the composition has good inhibitory activity on beet armyworms and can be used as a potential pesticide for preventing and treating beet armyworms.

The invention discloses a permeation persistent-effect auxiliary agent with a spodoptera exigua nuclear polyhedrosis virus control effect, a preparation and application, and relates to the technical field of agricultural biopesticides. The auxiliary agent comprises a reverse penetrating agent, a leaf back deposition agent, a midgut synergistic agent, an environment activation type adhesive, a system compatible component and the balance of a carrier. Through cooperation of the lecithin / alcohol ether compound reverse penetrating agent and the hydrophobic modified silicon dioxide, liquid medicine canopy penetration and leaf back efficient deposition are achieved; a carrageenan-chitosan compound forms an intelligent response film of'drying viscosity loss-wet activation ', and the lasting period is prolonged to 10-14 days; chitosan oligosaccharide can regulate the midgut environment of pests, and the virus infection rate is increased by 1.8-2.3 times. And the auxiliary agent is compatible with an unmanned aerial vehicle low-volume spraying system and is suitable for green prevention and control of beet armyworms of cruciferous crops such as cabbages, cauliflowers and Chinese cabbages, the control effect reaches 95% or above 7 days after pesticide application, and the lasting period is prolonged by 5-7 days compared with that of a conventional preparation.

The present invention provides an indoxacarb-containing pesticide composition, which comprises a first effective component and a second effective component, the first effective component is a compound having a structural formula (I), the second effective component is indoxacarb, and the weight ratio of the first effective component to the second effective component is 1-50: 1-50. The invention also provides application of the pesticide composition in prevention and control of agricultural and forestry pests, especially in prevention and control of chilo suppressalis. Experiments prove that the binary composition obtained by compounding flufenican amide and indoxacarb in a proper proportion has a remarkable synergistic effect, so that the effects of improving the control effect, reducing the dosage and expanding the insecticidal spectrum are achieved. The composition disclosed by the invention has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle, spider mites, brown planthopper or liriomyza sativae. (I)

The invention discloses an insecticidal composition containing entomopathogenic virus and jasmonic acid methyl ester or jasmonic acid, and relates to the technical field of biological insecticide, the active ingredients of the insecticidal composition are entomopathogenic virus and jasmonic acid methyl ester or jasmonic acid, and the entomopathogenic virus is nuclear polyhedrosis virus of baculoviridae. The weight ratio of the virus to the jasmonic acid methyl ester or jasmonic acid is 1: (0.5-1000), and the insecticidal composition can be prepared into dosage forms such as a suspending agent, water dispersible granules, wettable powder and the like. The invention also provides a method for preventing and treating lepidoptera pests, which comprises the step of applying the entomopathogenic virus and methyl jasmonate or jasmonic acid to target pests or a living environment of the target pests in a combined manner, and the combined application is simultaneous application or successive interval application. The insecticidal composition has a synergistic effect on lepidoptera pests such as cotton bollworms and beet armyworms, can obviously reduce the food intake, accelerate the death of pests and improve the field control effect, and has a wide application prospect.

The present invention provides a chitin synthesis inhibitor compound-containing pesticide composition, which comprises a first effective component and a second effective component, the first effective component is a compound having a structural formula (I), the second effective component is buprofezin, lufenuron, cyromazine, diafenthiuron, diflubenzuron, chlorbenzuron, hexaflumuron or chlorfluazuron, and the weight ratio of the first effective component to the second effective component is 1-50: 1-50. The invention also provides application of the pesticide composition in prevention and control of agricultural and forestry pests, especially brown planthopper, beet armyworm or liriomyza sativae. The invention verifies that the binary composition of the inhibitor insecticide synthesized from the flufenutraniliprole and the chitin has a remarkable synergistic effect, effectively improves the control effect, reduces the dosage and expands the insecticidal spectrum. The composition disclosed by the invention has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle, spider mites, brown planthopper or liriomyza sativae. (I).

This application discloses a Penicillium strain with stress resistance, growth promotion, and insecticidal functions, and its applications. The preservation number of this Penicillium strain is CGMCC No. 42545. This Penicillium strain naturally integrates four functions: salt tolerance, drought tolerance, plant growth promotion, and insecticidal activity against lepidopteran pests. It can grow normally in a 15% NaCl concentration medium, significantly improving plant survival rate under drought stress. Simultaneously, it promotes growth indicators such as root length and root fresh weight in crops like peas. It exhibits highly effective lethal activity against young larvae of lepidopteran pests such as diamondback moth and beet armyworm, and has high safety against non-target organisms. This Penicillium strain can be prepared into solid or liquid inoculants, showing promising application prospects in stress resistance, growth promotion, and pest control for crops grown in saline-alkali / arid areas. It realizes an integrated solution of "stress adaptation - crop growth promotion - pest control," replacing the combined use of multiple single-function agents and reducing agricultural production costs.

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 present invention provides a pyridaben-containing pesticide composition, which comprises a first effective component and a second effective component, the first effective component is a compound having a structural formula (I), the second effective component is pyridaben, and the weight ratio of the first effective component to the second effective component is 1-50: 1-50. The invention provides an application of the pesticide composition in prevention and control of agricultural and forestry pests, especially in prevention and control of phyllotreta striolata. The invention verifies that the binary composition obtained by compounding the flufenoxanil and the pyridaben in a proper proportion has a remarkable synergistic effect, so that the effects of improving the control effect, reducing the dosage and expanding the insecticidal spectrum are achieved. The composition disclosed by the invention has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle, spider mites, brown planthopper or liriomyza sativae. (I)

The invention provides a gene with an antiviral effect and application thereof, the nucleotide sequence of an open reading frame of the gene is SEQ ID NO: 2, and the amino acid sequence of a coding protein of the gene is SEQ ID NO: 1. The invention also provides a method for increasing the sensitivity of the beet armyworm to the beet armyworm nuclear polyhedrosis virus, which is used for reducing the expression quantity of the gene in the beet armyworm. According to the invention, a gene with an antiviral effect is screened from an important agricultural pest beet armyworm. The sequence structure and tissue expression mode of the gene are analyzed, incremental expression and RNA interference technologies are utilized to prove that the gene has an anti-SeMNPV effect, a new target is provided for better utilizing baculovirus to prevent and control beet armyworms in production, and the gene has a good application prospect.

The invention discloses an insecticide composition and a preparation method thereof, and relates to the technical field of pesticide compounding. According to the composition, Oxazosulfyl and beta-cypermethrin are compounded, a multifunctional modified white carbon black composite carrier serves as a carrier, and synergistic interaction is achieved through a micelle-slow release technology. The insecticide composition has quick-acting and persistent control effects on beet armyworms, ostrinia nubilalis, laodelphax striatellus and wheat aphids, is obviously superior to a single agent, and can delay the generation of resistance. The preparation process is simple, various dosage forms such as a suspending agent, an emulsion in water and the like can be processed, and good application prospects are achieved.

The invention discloses an sNPF gene and application of an inhibitor of the sNPF gene in prevention and control of beet armyworms, and belongs to the technical field of biology. The sNPF gene of the beet armyworm is silenced through an RNA interference technology, and the sNPF is found to play an important regulation role in ingestion, growth and development and energy metabolism of larvae; the sNPF gene silencing obviously reduces the feeding amount and the body weight growth rate of the larvae, and increases the death rate of the larvae under hunger stress; in addition, silence of the sNPF gene also significantly affects the content of glycometabolism substances in the larva body. The sNPF is found to be a key factor for regulating and controlling the physiological process of beet armyworm larvae, has the potential of serving as a new target for pest control, and provides a theoretical basis for prevention and control of beet armyworms.

This invention belongs to the field of pesticide technology, specifically relating to a fused heterocyclic compound, its preparation method, insecticidal composition, and application. The compound is shown in general formula I: wherein X represents a cycloalkyl, aryl, or heterocyclic group; Y1 represents O or N-Y3; Y2 represents an alkyl, haloalkyl, alkenyl, etc.; Y3 represents hydrogen, alkyl, haloalkyl, etc.; R1, R2, R3, R4, and R5 independently represent hydrogen, halogen, alkyl, etc.; the compound exhibits excellent control effects against fall armyworm, armyworm, and beet armyworm.

The invention discloses a beet armyworm repellent and application thereof. The beet armyworm repellent is prepared from the following components in percentage by volume: 0.01 percent to 0.2 percent of lauric aldehyde, 0.01 percent to 0.3 percent of phenylacetaldehyde, 0.1 percent to 2 percent of trans-2-dodecenal, 0.1 percent to 2 percent of trans-2-tetradecenal and 95.5 percent to 99.78 percent of a solvent. According to the beet armyworm repellent provided by the invention, lauric aldehyde, phenylacetaldehyde, trans-2-dodecenal and trans-2-tetradecenal are used as repellent active ingredients, all the active ingredients supplement each other, a synergistic effect is achieved, the beet armyworm repellent has good oviposition and antifeedant repellent effects on beet armyworms, the repellent rate on the beet armyworms is up to 97.66% + / -0.51%, and the repellent effect on the beet armyworms is up to 97.66% + / -0.51%. The repelling rate is obviously higher than that of a single active component. And the active components are all common natural plant components, are harmless to human bodies, are biodegradable, are environment-friendly, and are convenient and safe to use.

The invention discloses serratia marcescens with efficient insecticidal activity on lepidoptera larvae and application of the serratia marcescens. Researches show that fermentation liquor or diluent of the obtained serratia marcescens Sm001 strain has a good insecticidal effect on beet armyworms, cotton bollworms, prodenia litura and armyworms, for example, the corrected death rate of the beet armyworms treated for 3 days is as high as 96.67%. Therefore, the strain has a very good biological prevention and control effect, can be used for preventing and controlling agricultural pests, and is beneficial to reducing the use of chemical pesticides and the like.

The invention relates to the technical field of pesticides, and discloses an insect pest prevention and control method for brassicaceous vegetables. The method comprises the following steps: raising seedlings of cruciferous vegetable seeds, and controlling insect pests by using chemical pesticides in the vegetable growth process. Main insect pests of cruciferous vegetables include cabbage caterpillars, plutella xylostella, aleyrodid, aphids, beet armyworms, grubs, prodenia litura, mamestra brassicae, agrotis ypsilon, phyllotreta striolata, radish borer, simian insects and the like, when the insect pests occur, chemical pesticides are used for controlling the insect pests, the chemical pesticides comprise fenpropathrin and chlorbenzuron as effective components, and the chemical pesticides are used for controlling the insect pests. The suspending agent composition is prepared by adding an auxiliary agent and a synergist into the effective components, is used for preventing and treating brassicaceous vegetable insect pests, especially has a very good effect on cabbage plutella xylostella, not only solves the problem of insect pests in the cabbage growth period, but also reduces the pesticide use amount, solves the problems that pesticide residues are easy to exceed the standard and the safety interval is long, and has a good application prospect. And the purposes of pesticide reduction and synergism are achieved.

The present invention discloses a method for preparing meta-phosphonylated polysubstituted pyridine compounds, belonging to the technical field of organic synthesis. The synthesis process of the present invention is simple and does not require the use of highly toxic reagents, multiple catalysts, and expensive precious metal catalysts. Tertiary olefin amide and organophosphorus reagent are used as basic raw materials, and manganese acetate is used as a promoter (using conventional reaction reagents, solvents, and promoters). Through an intramolecular free radical cascade reaction, meta-phosphonylated polysubstituted pyridine compounds can be obtained in one step with high efficiency and yield of up to 95%. In addition, the reaction raw materials of the present invention are cheap and readily available, have high atom economy, wide substrate universality, and strong operability. The meta-phosphonylated polysubstituted pyridine compounds of the present invention have good insecticidal activity against beet armyworm larvae and can be used as insecticides in agricultural pest control.

The invention relates to the technical field of plant genes and breeding, in particular to application of an NtPPO gene in regulation and control of prodenia litura resistance of a tobacco plant and the tobacco plant. The gene is at least one of an NtPPO (N-Phosphate Polymerase)-4 gene and an NtPPO (N-Phosphate Polymerase)-11 gene. The base sequence of the NtPPO-4 gene is as shown in SEQ ID No. 1 (sequence identifier number 1); the base sequence of the NtPPO (N-type Phosphate Polymerase)-11 gene is as shown in SEQ ID No. 2. The regulation comprises that at least one of the NtPPO-4 gene and the NtPPO-11 gene is knocked out or reduced, so that the resistance of the tobacco plant to the prodenia litura is reduced. And through overexpression of at least one of the NtPPO-4 gene and the NtPPO-11 gene, the resistance of the tobacco plant to the prodenia litura is improved. The gene is subjected to single-gene or multi-gene overexpression in a tobacco plant, so that the resistance of the plant to prodenia litura can be greatly enhanced. The method has important significance and wide application prospect in the aspects of resistance mechanism research, molecular breeding and the like of prodenia litura.

The invention provides a gene capable of influencing the insecticidal virulence effect of baculovirus and application of the gene, a beet armyworm SeCaspase-4 gene is obtained through screening, a genome bacmid of a recombinant virus carrying the gene is constructed, and a recombinant virus polyhedrosis is successfully obtained through cell transfection. A large amount of expression of the SeCaspase-4 gene can promote cell apoptosis in the baculovirus infection process, and can improve the insecticidal toxicity of the recombinant virus polyhedrosis to lepidoptera insects. Therefore, the recombinant virus is obtained by constructing the recombinant baculovirus bacmid carrying SeCaspase-4 and transfecting insect cells, and the insecticidal toxicity of the recombinant baculovirus on lepidoptera insects can be improved. The invention provides an effective way for improving the insecticidal toxicity of the baculovirus on the lepidoptera insects, and has important significance for efficiently utilizing the baculovirus to carry out biological control on the lepidoptera insects.

The invention belongs to the technical field of pesticide disinfestation, and discloses a chlorfenapyr-containing insecticidal composition and application thereof.The active ingredients of the insecticidal composition comprise chlorfenapyr and a compound shown in the formula I. The structure of the compound shown in the formula I is as follows: the mass ratio of the compound shown in the formula I to chlorfenapyr is 1: 40-35: 1. The insecticidal composition disclosed by the invention can be used for effectively preventing and treating pests such as lepidoptera and thysanoptera, especially has a remarkable effect on preventing beet armyworms, plutella xylostella, cabbage caterpillars and thrips, is high in safety to crops and does not generate phytotoxicity.

The present invention discloses an insecticide composition and a preparation method thereof, relating to the technical field of pesticide compounding. The composition compounds oxazolidinone with highly effective cypermethrin, using a multifunctional modified silica composite carrier as a carrier, and achieves synergistic efficacy through micelle-slow-release technology. The insecticide composition exhibits both rapid and long-lasting control effects against beet armyworm, corn borer, gray leafhopper, and wheat aphid, significantly outperforming a single agent and delaying the development of resistance. The preparation process of the present invention is simple, and the composition can be processed into various dosage forms, such as suspension concentrates and aqueous emulsions, showing promising application prospects.

This invention relates to the field of biological control, specifically to a stomach poison insecticidal active polypeptide, its preparation method, and its application; more specifically, to the stomach poison insecticidal active polypeptide, its polynucleotide, expression cassette, preparation method, usage method, and application. A polynucleotide molecule encoding a stomach poison insecticidal active polypeptide is provided, wherein the polynucleotide molecule is selected from one of the following nucleic acid molecules: a nucleic acid molecule composed of a nucleotide sequence selected from SEQ ID NO:1; or a nucleic acid molecule encoding a polypeptide composed of an amino acid sequence selected from SEQ ID NO:2. Pc-1 exhibits broad and efficient insecticidal activity against various lepidopteran pests such as the beet armyworm and the cotton bollworm, indicating its broad-spectrum application potential and providing an important core molecular entity for developing a new generation of highly efficient, low-residue, and environmentally compatible polypeptide-based biological insecticides.

The invention discloses a preparation method and application of compound microorganism full water-soluble powder. According to the present invention, the Metarhizium anisopliae (WXH-M001) Metarhizium anisopliae and the Bacillus subtilis (WXH-B001) Bacillus velezensis are obtained through the directional screening of the bacterial strain function, and the Metarhizium anisopliae and the Bacillus subtilis are obtained through the screening; furthermore, the two strains are reasonably combined, and a special auxiliary agent is screened, so that the compound microorganism full water-soluble powder is prepared. The compound microorganism full-water-soluble powder provided by the invention has an obvious control effect on northern leaf blight, southern leaf blight, corn borer, beet armyworm and the like of corn, is beneficial to improving the corn yield, is not easy to induce pest or pathogenic bacterium resistance, and can replace chemical pesticides or reduce the application amount of pesticides; and meanwhile, the pesticide composition has the characteristic of quick dissolution, is free of residue, can be used through flight prevention, micro-spraying, drip irrigation and conventional mist spraying, is friendly to environment and non-target organisms, and can provide important technical support for realizing green agriculture.

Provided are an amide derivative 5-chloro-N-(2-fluoro-3-(2-iodo-4-(perfluoropropane-2-yl)-6-(trifluoromethyl)phenyl)carbamoyl)phenyl)thiophene-2-carboxamide and the use thereof in killing, preventing and controlling agricultural and forestry pests, particularly pests with chewing mouthparts, such as plutella xylostella, beet armyworm, and cotton bollworm. The compound is safe for honey bees.

The application discloses a kind of noctuidae larva food attractant and preparation method, food attractant and application, including volatile component 0.0028-0.0042% by weight, nutrient component 2.3-3.5%, deionized water is supplemented to 100%.The application adopts volatile component 0.0028-0.0042%, nutrient component 2.3-3.5% combination, nutrient component provides the internal motivation of larva feeding, and volatile component provides long-distance attractant signal, and the dual mechanism of "near end attraction+remote guidance" is formed by the synergistic effect of both, has significant attractant effect to cotton bollworm, pyrausta nubidalis, beet armyworm, spodoptera exigua and other various noctuidae larvae.Has broad-spectrum attractant effect to noctuidae larvae, can reduce the number of times and the amount of drug, avoids pesticide abuse, so that pests appear drug resistance.To human and livestock, natural enemies and natural environment have no toxic side effects, and are safe to environment without pollution.

The invention provides application of danzanoic acid B to prevention and control of beet armyworms, and relates to the technical field of pest prevention and control. The danshinoic acid B can generate a remarkable antifeedant effect on beet armyworms at a certain concentration, plays a role in inhibiting feeding of the beet armyworms, can inhibit growth of beet armyworm larvae to a certain extent and even cause death of the beet armyworm larvae, and can be used as a novel beet armyworm control agent. According to the invention, the defects in the prior art are overcome, the plant-derived extraction component of danzanoic acid B can effectively prevent and treat beet armyworms, and the component is green and safe, reduces environmental pollution, and has a good prospect in the development of a novel agent for preventing and treating beet armyworms.

The invention belongs to the technical field of biological prevention and control of agricultural pests, and particularly relates to a control method for inducing diapause of noctuid black egg bees. The method comprises the following steps: a, establishing a prodenia litura population and collecting new spawning blocks; b, continuously breeding the noctuid black-egg bees by taking the fresh prodenia litura eggs in the step a as hosts, and collecting female noctuid black-egg bees which are just subjected to eclosion; c, the prodenia litura eggs in the step a are inoculated with the noctuid black egg bee female bees in the step b for parasitism; and d, transferring to a diapause induction environment for treatment after parasitism. Under the conditions that the temperature is 8 DEG C and the photoperiod is 0L: 24D, or under the conditions that the temperature is 12 DEG C and the photoperiod is 8L: 16D, the diapause rate after 35-day induction treatment is relatively high, and the diapause rate reaches 97.5% or above. According to the method disclosed by the invention, the diapause rate of the black egg noctuid is remarkably improved through coordinated regulation and control of the temperature, the photoperiod and the induction time, and a key technical support is provided for long-term storage and large-scale application of the black egg noctuid.

The invention discloses an enterobacter cancerogenic EcCB2 strain and an application thereof. According to the present invention, the enterobacter cancerogenus EcCB2 strain is separated from lasioderma serricorne, and is preserved in Guangdong Province Microbial Culture Collection Center on May 31, 2024, and the preservation number is GDMCC No: 64709; the EcCB2 strain not only can effectively kill vegetable pests such as beet armyworms, spodoptera litura, prodenia litura, plutella xylostella and cabbage caterpillars which are mainly harmful to brassicaceous vegetables, but also can remarkably inhibit the growth of plant pathogenic fungi such as fusarium oxysporum, sclerotinia sclerotiorum, colletotrichum hijinensis and alternaria solani; the compound can be used for preventing and treating plant diseases caused by plant pathogenic fungi and cruciferous vegetable insect pests.