39 results about "Myzus persicae" patented technology

The application belongs to the technical field of pesticides, and particularly relates to a pyridylalanine derivative, a composition thereof and a use thereof. The compound is shown in the general formula I: wherein X1 represents hydrogen or fluorine, X2 represents hydrogen or fluorine, X3 represents hydrogen or fluorine, X4 represents hydrogen or fluorine, and X1, X2, X3 and X4 are not hydrogen at the same time; R1 and R2 independently represent hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or -(CO)R3; Y1 represents hydroxyl, alkoxyalkyloxy, trialkylsilyloxy or -O(CO)R3; Y2 represents hydrogen or alkyl; or Y1 and Y2 together form =O. The compound has excellent control effects on pests such as Myzus persicae, Lygus lineolaris, Rhopalosiphum maidis and Bemisia tabaci.

This invention discloses a protein and gene related to resistance to neonicotinoid acetylcholine receptor competitive regulator insecticides in peach aphids, and their applications. It relates to the field of screening technology for neonicotinoid acetylcholine receptor competitive regulator insecticides in peach aphids. This invention obtains and clarifies an MpeABCC_4G protein and its encoding gene that is closely related to the resistance of peach aphids to neonicotinoid acetylcholine receptor competitive regulator insecticides. By knocking down the expression of MpeABCC_4G in resistant peach aphids using RNAi technology, the control efficacy of neonicotinoid acetylcholine receptor competitive regulator insecticides is significantly improved.

The application belongs to the technical field of biology, and discloses a kind of Myzus persicae densovirus, amplification and connector method and its application, Myzus persicae densovirus name is Myzus persicae densovirus 2, abbreviated as MpDV2, preserved in China typical culture preservation center, and the preservation number is V202281.The Myzus persicae densovirus MpDV2 provided in the application is a virus strain that has not been isolated and identified before and has pathogenicity to Myzus persicae, and the full-length sequence of the genome of the Myzus persicae densovirus MpDV2 (including the complete terminal inverted repeat sequence) is disclosed for the first time, and the influence of the virus infection on the growth and development of Myzus persicae and the population dynamics / growth.The Myzus persicae densovirus MpDV2 of the application significantly reduces the intrinsic growth rate (r), net reproduction rate (R0) and week-long growth rate (lambda) of Myzus persicae population, and prolongs the average generation time (T) of the population, and the MpDV2 infection has a significant influence on the growth and development of Myzus persicae and population growth.

The invention provides a PCR (Polymerase Chain Reaction) primer combination and a multiplex PCR detection method for detecting three types of thrips in a cotton field, and relates to a one-step multiplex PCR molecular rapid identification primer and method for three types of common thrips (tobacco thrips, flower thrips and western flower thrips) in the cotton field based on a mitochondrial COI gene. Specific upstream primers are respectively designed for three types of thrips and are combined with universal downstream primers, a one-step multiplex PCR detection system is constructed by optimizing the primer proportion and annealing temperature, a single target strip is amplified by a single template through single-tube reaction for one time, and specific strips of 123 bp (tobacco thrips), 417 bp (flower thrips) and 322 bp (flower thrips) can be synchronously amplified in a mixed sample template. And accurate identification of the three thrips is realized. According to the method, the limitation of traditional morphological identification in nymph stage and sibling species distinguishing is broken through, the detection efficiency is improved by 3 times compared with that of single PCR, and efficient technical support is provided for dynamic monitoring and green prevention and control of cotton field thrip populations.

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 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).

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 pesticide composition containing a pyrethroid compound, which consists of a compound with a structural formula (I) and a second effective component, the second effective component is bifenthrin, beta-cyhalothrin, fenpropathrin, beta-cyhalothrin, beta-cyhalothrin, beta-cyhalothrin, cypermethrin, cyfluthrin, deltamethrin, ethofenprox, fenvalerate or cis-cypermethrin, and the weight ratio of the bifenthrin, the beta-cyhalothrin, the fenpropathrin, the fenvalerate and the cis-cypermethrin is (1-50): (1-50). The invention also provides application of the pesticide composition in prevention and control of agricultural and forestry pests, especially phyllotreta striolata, ostrinia nubilalis or tetranychus cinnabarinus. The invention verifies that a remarkable synergistic effect can be obtained by compounding the flufenoxanil and the pyrethroid insecticide in a proper proportion, the effects of improving the control effect, reducing the dosage and expanding the insecticidal spectrum are realized, and the composition has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle and tetranychid mites, and has a good control effect on the target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis. (I).

The invention relates to a strain of verticillium sublicum Huhu 2, the verticillium sublicum Huhu 2 is preserved in the Guangdong Province Microbial Culture Collection Center, the preservation number is GDMCC No: 64189, and the preservation date is December 24, 2023, and the preservation number is CGMCC No: 64189. The invention aims to provide a strain of verticillium subtropicum Hu 2 and application thereof, so as to overcome the defects and technical deficiencies of the existing green peach aphid prevention and treatment method. The application disclosed by the invention has the advantages that long-term infection biology and indoor biological assay of the verticillium subtropicum urh2 show that the strain has a very strong infection insecticidal effect on the green peach aphid; and the application of the verticillium subtropicum urh2 to the green peach aphid has a very strong anti-infection insecticidal effect on the green peach aphid.

This invention belongs to the field of pesticide technology, specifically relating to a triazole compound, its preparation method, insecticidal composition, and application. The compound is shown in general formula I: wherein X represents O or S; A1 represents N or CH; A2 and A3 independently represent N or CR5, and only one of A1, A2, and A3 is N; R1 represents alkyl, etc.; R2, R3, R5, R6, and R8 independently represent hydrogen, halogen, alkyl, alkenyl, etc.; R4 and R7 independently represent hydrogen, alkyl, etc. The compound or its salts exhibit excellent control effects against brown planthoppers, cereal aphids, gray planthoppers, white-backed planthoppers, peach aphids, and peanut aphids.

The present application belongs to the technical field of microorganisms, and discloses a new Talaromyces amestolkiae strain with broad-spectrum lepidopterous insecticidal activity and application thereof. The new strain is isolated from the pests of Spodoptera litura, and is named as Talaromyces amestolkiae GZTA01, which has been preserved in China Center for Type Culture Collection on January 6, 2026, and the strain preservation number is CCTCC NO: M2026033. The Talaromyces amestolkiae strain of the present application has a minimum lethal rate of 62.14% and a maximum lethal rate of 86.67% on Spodoptera litura, Myzus persicae, Plutella xylostella and Mythimna separata, and exhibits excellent broad-spectrum control potential on lepidopterous and hemipterous pests.

The invention belongs to the technical field of pesticides, and particularly relates to a triazole compound, a preparation method thereof, an insecticidal composition and application. The compound is shown as a general formula I, wherein X represents CR11 or N; x2 represents CR2 or N; w represents O or S; r1, R2, R3, R4, R5, R6, R7, R9, and R11 each independently represent hydrogen, halogen, alkyl, or the like; r8 represents hydrogen, an alkyl group, an alkenyl group, an alkynyl group, or the like; r10 represents hydrogen, an alkyl group, an alkenyl group, an alkynyl group, or the like; the compound has excellent prevention and treatment effects on brown planthopper, rhopalosiphum padi, laodelphax striatellus, sogatella furcifera, green peach aphid, peanut aphid and the like.

The invention provides an application of inhibiting farnesol dehydrogenase in enhancing the toxicity of trifloxacin, and belongs to the technical field of pest control. The invention provides an application of inhibiting farnesol dehydrogenase in enhancing the toxicity of trifluoro-sassen ester. By inhibiting the expression of the farnesol dehydrogenase, the toxicity of the trifloxystrobin can be improved, and the pest control effect of the trifloxystrobin is improved. The result of the embodiment shows that the expression of the aedes aegypti farnesol dehydrogenase FDL22 and the expression of the green peach aphid farnesol dehydrogenase FDL242 are silenced by dsRNA, and the toxicity of the trifluorocide to the aedes aegypti and the green peach aphid can be remarkably improved. The juvenile hormone analogue S-(+)-methoprene is used in combination with the trifluoro-nematicidal ester, so that the toxicity of the trifluoro-nematicidal ester to aedes aegypti larvae can be remarkably improved.

The invention provides application of beauveria bassiana HFBb18 in preparation of a green peach aphid biological control entomopathogenic fungus agent, and belongs to the technical field of agricultural biology. The inventor acquires and identifies three new strains of beauveria bassiana from the field, then selects three strains of beauveria bassiana preserved in a laboratory, and finds that the newly found HFBb18 strain has high toxicity to green peach aphids through indoor toxicity determination. On the basis, the influence of infection of the HFBb18 strain on the activities of detoxifying enzyme and protecting enzyme of green peach aphid is determined. Furthermore, the wettable powder taking the HFBb18 strain conidia as a main active ingredient is prepared, the potting pesticide effect test control effect of the wettable powder on green peach aphids is defined, and a foundation is laid for development and application of a novel fungal aphid killing agent.

The invention provides an aphid pest attractant. According to the aphid pest attractant, benzyl isobutyrate is used as a myzus persicae attractant. The invention finds that benzyl isobutyrate can be specifically bound with odorant binding protein of myzus persicae on a molecular level, so that the benzyl isobutyrate can be used as an effective active ingredient of the myzus persicae attractant. Benzyl isobutyrate is adopted as an active component of the attractant, so that the trend response to myzus persicae can be remarkably enhanced, and the attraction efficiency can be improved. Meanwhile, the compound is clear in structure, controllable in source, convenient to prepare and apply on a large scale, beneficial to reducing the use amount of chemical pesticides and reducing the risk of environmental pollution, suitable for green prevention and control of myzus persicae and good in application prospect.

The invention relates to a pesticide composition containing a nicotine compound and application of the pesticide composition. The pesticide composition is prepared from flufenican amide, acetamiprid, thiamethoxam or clothianidin and the like. The pesticide composition has an obvious synergistic effect, the usage amount of pesticides is reduced, the residual amount of the pesticides on crops is reduced, and the environmental friendliness is enhanced. The pesticide 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.

The invention relates to the technical field of microbial pesticides, in particular to a bacillus thuringiensis Bt-39 strain, a culture method of the bacillus thuringiensis Bt-39 strain, an insecticidal oil agent prepared from the bacillus thuringiensis Bt-39 strain, and application of the oil agent in prevention and treatment of Myzus persicae and Hylopterus pruni. The bacillus thuringiensis Bt-39 strain provided by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation address is No.3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, the preservation date is May 25, 2020, the preservation number is CGMCC No.19877, and the Latin name is Bacillus thuringiensis. The 5-day fatality rate of green peach aphids and green peach aphids exceeds 68% and is superior to that of chemical agents, meanwhile, chemical pesticide residues can be reduced, and natural enemy insects are protected.

The present invention relates to the use of the MpAcrP5 protein in influencing the transmission of Turnip Mosaic Virus by Myzus persicae. The present invention discovers that the MpAcrP5 protein of Myzus persicae can influence the transmission of Turnip Mosaic Virus by Myzus persicae. Reducing the expression of the MpAcrP5 protein in Myzus persicae can reduce the transmission of Turnip Mosaic Virus by Myzus persicae. Specifically, dsRNA of the MpAcrP5 gene can be used to interfere with the transcription of the MpAcrP5 gene in Myzus persicae, thereby reducing the transmission of Turnip Mosaic Virus by Myzus persicae, thereby preventing or alleviating plant diseases caused by Turnip Mosaic Virus.

The invention provides a pesticide composition containing antibiotic compounds, the pesticide composition is composed of a first effective component and a second effective component, the first effective component is a compound with a structural formula (I), the second effective component is methylamino abamectin benzoate, abamectin, spinosad, spinetoram or ivermectin, 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 of agricultural and forestry pests. The invention verifies that the binary composition obtained by compounding the flufenutraniliprole and the antibiotic insecticide 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 and flea beetle. (I).

This invention belongs to the field of pesticide chemistry. This invention provides an isoxazoline pyridazine derivative, which is a compound represented by general formula I or II or its stereoisomers, polymorphs, isotope labels, or pharmaceutically acceptable salts. The isoxazoline pyridazine derivative of this invention exhibits significant insecticidal activity and broad spectrum, achieving a corrected mortality rate of 23.81%–100.00% against diamondback moth, 17.78%–88.89% against Asian corn borer, and 20.00%–93.33% against peach aphid. The isoxazoline pyridazine derivative of this invention also shows LC50 activity against zebrafish. 50 ≥10 mg / L, which falls under the low-risk category for aquatic organisms and has low environmental risk.

The invention provides a binary nano compound for synergistically preventing and treating myzus persicae and potato virus Y disease and a preparation method thereof, the binary nano compound simultaneously loads matrine and ascorbic acid through HLDP to form a nano pesticide, the prevention and synergism of the myzus persicae and the potato virus Y disease can be realized, and in addition, the synergistic effect of the myzus persicae and the potato virus Y disease can be realized. The determination result of the biological activity of the myzus persicae shows that it is possible to achieve pesticide reduction and synergism in the field through the nano pesticide, and a reference is provided for reduction and synergism of myzus persicae prevention and control. Meanwhile, based on a dual-load nano-pesticide technology, the dual-load performance of the HLDP is explored, and it is indicated that the HLDP can be applied to manufacturing of a binary nano-composite.

The invention belongs to the technical field of bioengineering, and particularly relates to a salivary gland secretory protein gene, double-stranded RNA thereof and application of the salivary gland secretory protein gene in reduction of the survival rate of aphids. Wherein the salivary gland secretory protein genes are Mp5, Mp11, Mp44, Mp45, MpCOO2 and MpE and are used as dsRNA target genes to be applied to the reduction of the survival rate of aphids, and the nucleotide sequences of the genes Mp5, Mp11, Mp44, Mp45, MpCOO2 and MpE are respectively shown as SEQ ID NO. 1-6. The specific dsRNA is designed by targeting the myzus persicae salivary gland key secretory protein gene, the survival rate and the reproductive capacity of the myzus persicae are remarkably reduced, and the myzus persicae salivary gland key secretory protein gene has efficient lethality and good targeting property, is safe to non-target organisms, is environment-friendly, can replace chemical pesticides, has the advantages of simplicity and convenience in operation, low cost, easiness in field application and the like, and has a wide application prospect. A brand new biotechnology solution is provided for green and sustainable prevention and control of aphids.

The invention belongs to the technical field of green prevention and control of agricultural pests, and particularly relates to a prevention and control and regulation agent for aphids. The key point is that 2-acetylfuran is used for prevention and control of aphids. The 2-acetylfuran shows an obvious concentration-dependent behavior regulation effect on aphids, different concentrations can be selected according to prevention and control requirements, and dual behavior regulation on myzus persicae is realized.

The invention belongs to the technical field of plant pest control, and discloses application of verticillium lecanii to cabbage pest control. According to the method, verticillium lecanii JMC-01 (the preservation number is CCTCC NO: M2018303) is colonized in a cabbage plant through foliar spraying, and the verticillium lecanii-cabbage symbiont is formed. After the green peach aphid infects the verticillium lecanii-cabbage symbiont, the green peach aphid shows obvious infection symptoms and finally causes death of the green peach aphid; besides, the verticillium lecanii-cabbage symbiont can generate specific volatile metabolites including n-hexadecane and 3-methyl-2-hydroxyindole, and has a repelling effect on green peach aphids, so that a biological barrier is constructed, and the insect resistance of cabbages is enhanced. According to the method, efficient and green prevention and control of the cabbage pests are achieved, and a new thought and method are provided for sustainable treatment of the cabbage pests.

The invention discloses application of thuringirin in prevention and treatment of cotton aphid, green peach aphid, armyworm and soybean cyst nematode, and belongs to the field of microbial pesticides. The invention discovers that the thurinin has the biological activity of killing cotton aphid, green peach aphid, mythimna separata and soybean cyst nematode for the first time, has a wide application prospect, and can be developed into a novel environment-friendly biological control agent.

The application discloses application of rifampicin in preparation of a Myzus persicae insecticide.

The invention belongs to the technical field of organic compounds, and particularly relates to an isoxazole sulfoester compound as well as a preparation method and application thereof. The isoxazole sulfoester compound provided by the invention has a structure as shown in a formula 1, wherein the formula 1 is shown in the description; wherein R is or. The isoxazole sulfoester compound provided by the invention has good insecticidal and antibacterial activity, and can be used for prevention and control of agricultural pests; the compound disclosed by the invention has the advantages that the compound has obvious insecticidal activity on spodoptera frugiperda, spodoptera litura, spodoptera exigua, plutella xylostella and myzus persicae, and the compound has obvious antibacterial activity on Botrytis cinerea, so that the compound disclosed by the invention can be used for preparing the compound.

The invention provides an imidazole nicotinamide enzyme (Naam) inhibitor as well as a preparation method and application thereof, and belongs to the field of medical chemistry. The imidazole Naam inhibitor is a compound as shown in a formula I, or a salt thereof, or an isomer thereof, or a hydrate thereof, or a solvate thereof, or a prodrug thereof. The compound disclosed by the invention has good inhibitory activity on nicotinamide enzyme (Naam), particularly has good inhibitory activity on Myzus persicae Naam subtype related to pest control in the agricultural field, can be used for preparing a Naam inhibitor, and has a good development prospect as an agricultural insecticide.

The invention belongs to the technical field of natural products, and particularly relates to a natural insecticidal active compound as well as a preparation method and application thereof. The invention provides a natural insecticidal active compound which has a structure as shown in a formula 1. The natural insecticidal active compound provided by the invention shows remarkable insecticidal activity on myzus persicae and Armiges subbaldus, and a new direction is opened up for the research and development of an efficient and environment-friendly biological insecticide. The invention provides the preparation method of the natural insecticidal active compound with the structure as shown in the formula 1, the natural insecticidal active compound is obtained through polar solvent extraction, ethyl acetate extraction and column chromatography purification, and the preparation method provided by the invention is short in period, mild in condition, few in by-product, strong in stereoselectivity, low in cost and easy to realize industrialization.

The invention relates to a composition with an insecticidal effect, a pesticide and application thereof, and belongs to the technical field of pest control. The composition disclosed by the invention can be used for effectively preventing and treating piercing-sucking mouthpart pests such as aleyrodid and green peach aphid. According to verification of the embodiment of the invention, in a field pesticide effect test on tomato bemisia tabaci, the control effect of the composition disclosed by the invention is as high as 93.45% after the composition is applied for 10 days; meanwhile, in the prevention and treatment of peach aphids, under the same dosage, the prevention effect after 14 days can still be maintained at a high level of 90.78%. It is fully proved that the composition is good in fast-acting property and outstanding in persistence, and recovery and rerampant of pest populations can be effectively controlled. Moreover, the composition disclosed by the invention is safe to the growth of test crops such as tomatoes and peach trees, no phytotoxicity symptoms such as dwarfing, chlorosis and malformation are observed after the composition is applied, and the composition shows good crop compatibility.