764 results about "Biopesticide" patented technology

The invention discloses bacillus velezensis P15 and application thereof. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC NO.31995. The invention further discloses a preparation method of the bacillus velezensis P15. The bacterial strain has broad-spectrum and efficient antagonistic action on 21 different phytopathogens belonging to 12 genus, can effectively prevent and treat anthracnose of tea trees, powdery mildew of various vegetables and postharvest diseases of mangoes and peaches in vivo, has the prevention and treatment effect higher than 85% or above, has the prevention and treatment effect equivalent to or even more excellent than that of chemical pesticides, and has a broad application prospect in construction of a biocontrol bacterium resource library. The development of safe and efficient biopesticide has important significance.

The invention provides bacillus velezensis NJ157 and application thereof, and relates to the technical field of biological pesticides. The bacillus velezensis NJ157 can resist saline and alkaline, has a good inhibition effect on ralstonia solanacearum, rhizoctonia solanacearum, fusarium moniliforme and phytophthora capsici, and can effectively prevent and treat tomato bacterial wilt, root rot and fruit rot. The bacillus velezensis NJ157 disclosed by the invention also has relatively strong capability of producing protease, cellulase and IAA (Indoleacetic Acid), and has a relatively good growth promoting effect on tomatoes, and a fungicide prepared from the biocontrol bacterium does not cause pollution to the ecological environment in a use process, and is pollution-free. By using the biocontrol bacterium disclosed by the invention, the dosage of other chemical pesticides can be reduced, the prevention and control cost of tomato diseases is reduced, the tomato growth is promoted, and the biocontrol bacterium has a good popularization value.

The invention relates to paenibacillus polymyxa FangSG106 as well as application, a product and a method thereof, and belongs to the technical field of microorganisms. The invention provides paenibacillus polymyxa FangSG106, the preservation number of the paenibacillus polymyxa FangSG106 is CGMCC (China General Microbiological Culture Collection Center) No.31655. The invention also provides application of the paenibacillus polymyxa FangSG106 with the preservation number of CGMCC No.31655 in the aspects of non-treatment-destination bacteriostasis, plant disease prevention and treatment and plant growth promotion, and based on the paenibacillus polymyxa FangSG106, the application of the paenibacillus polymyxa FangSG106 in the aspects of non-treatment-destination bacteriostasis, plant disease prevention and treatment and plant growth promotion is The invention provides a plant growth promoter, a biopesticide, a method for preventing and treating plant diseases, a method for promoting plant growth and a bacteriostasis method. The paenibacillus polymyxa FangSG106 disclosed by the invention has broad-spectrum antibacterial activity, and can be used for effectively preventing and treating plant diseases and promoting plant growth.

The invention provides bacillus and application thereof, the bacillus is preserved in Guangdong Microbial Culture Collection Center on June 6, 2025, and the preservation number is GDMCC No.66483; one application of the bacillus is to prepare a preparation for promoting growth and / or resisting diseases of plants, and the other application is to use the bacillus for inhibiting microorganisms; the bacillus can effectively and enduringly inhibit the growth of phytopathogen, and can be used as a broad-spectrum antibacterial biological antibacterial agent to enhance the resistance of plants and promote the growth of the plants.

The invention provides bacillus paralicheniformis NJ102 and application thereof, and belongs to the technical field of microorganisms. The bacillus paralicheniformis NJ102 disclosed by the invention has the capabilities of resisting low temperature and saline and alkaline, and can endure the low temperature of 10 DEG C, the salt stress with the salt content of 17% and the strong alkali stress with the pH value of 12.5. Meanwhile, the bactericidal composition has a relatively good inhibition effect on ralstonia solanacearum, rhizoctonia solanacearum and phytophthora capsici, and can effectively prevent and treat tomato bacterial wilt, root rot and fruit rot. The bacillus paralicheniformis disclosed by the invention also has relatively strong capability of producing protease, cellulase, amylase and IAA (Indoleacetic Acid), has a relatively good growth promoting effect on tomatoes, and has great application potential in the aspect of biopesticide.

The invention discloses a preparation method of a camellia oleifera shell biopesticide, and belongs to the technical field of biopesticides, and the preparation method comprises the following steps: S1, crushing camellia oleifera shells into camellia oleifera shell powder, and mixing the camellia oleifera shell powder with humic acid, lignosulfonate, a microbial agent and a filler to obtain mixed powder; s2, adding sodium alginate and a dispersing agent into deionized water to obtain a sodium alginate solution, and mixing the sodium alginate solution with the mixed powder to obtain dispersion liquid; s3, dissolving an emulsifier in vegetable oil to obtain an oil phase solution, dropwise adding the dispersion liquid into the oil phase solution, and emulsifying to obtain a mixed emulsion; s4, dissolving chitosan and a cross-linking agent in a dilute acid solvent to obtain a chitosan solution, and dispersing the chitosan solution in the mixed emulsion for cross-linking reaction; s5, after the reaction is completed, filtering to obtain the biopesticide, wherein the biopesticide is composed of a plurality of biopesticide capsules; the biopesticide disclosed by the invention has the effects of efficiently and lastingly inhibiting bacteria, killing insects, improving the soil environment and promoting the growth of crops.

The invention belongs to the technical field of biological control, and particularly relates to a pseudomonas flax DY-31 strain, a biocontrol microbial inoculum and application of the biocontrol microbial inoculum. The preservation number of the pseudomonas lini (Pseudomonas lini) DY-31 is CGMCC (China General Microbiological Culture Collection Center) No.34088. The pseudomonas lini (Pseudomonas lini) DY-31 is The pseudomonas flax DY-31 or the biocontrol inoculant thereof is applied to prevention and treatment of plant soil-borne diseases, specifically including peanut black rot, peanut southern blight, peanut sclerotinia rot, peanut leaf rot sclerotinia rot, peanut basal rot and wheat stem basal rot. The pseudomonas flax DY-31 provided by the invention is an important strain resource, can be used for creating a biopesticide preparation, and is used for green prevention and treatment of soil-borne diseases of peanuts and wheat. In addition, the DY-31 strain also has various growth promoting functions, and has important development and application values in the aspects of agricultural biological control and plant growth promoting.

The invention discloses a double-stranded RNA (Ribonucleic Acid) aiming at hemiptera insects as well as a pesticide composition and application of the double-stranded RNA. The dsRNA provided by the invention is used as a biopesticide, has the characteristics of high efficiency, specificity, fast degradation and no residue, realizes the prevention and control of brown planthopper through an RNAi mechanism, and is beneficial to reducing the use of chemical pesticides. The invention provides a brand new brown planthopper target gene as a target of RNA interference. The survival rate result shows that the genes play an important role in the survival process of the brown planthopper, are effective targets for preventing and treating the brown planthopper by using a gene silencing means, and have a wide application prospect. Correspondingly, the invention provides a plurality of dsRNA sequences aiming at the targets, and part of the sequences show unprecedented brown planthopper control efficiency.

The invention discloses streptomyces allogeri and an application thereof in biological prevention and control of toxin-producing fungi. In particular to streptomyces allorgeus ZxBac193 CGMCC (China General Microbiological Culture Collection Center) No.32341 and an application thereof. The streptomyces allorgeus ZxBac193 shows a strong antagonistic effect on toxin-producing fungi such as aspergillus flavus, aspergillus ochraceus, fusarium graminearum, fusarium oxysporum, penicillium citrinum and penicillium islanigerum; the compound can inhibit the growth of aflatoxin producing fungi, ochratoxin producing fungi, deoxynivalenol producing fungi, zearalenone toxin producing fungi, fumonisins producing fungi, citrinin producing fungi and island penicillin producing fungi, and can be prepared into various biological control products aiming at mycotoxins, such as biopesticides, antifungal agents and the like. The compound is used for inhibiting toxic fungi in the environment and preventing or relieving mycotoxin pollution, and has good development and application prospects in the fields of prevention and treatment of fungal pollution of food crops and the like.

The invention discloses a green prevention and control integrated method for litchi diseases and insect pests. According to the comprehensive green prevention and control method for the litchi diseases and insect pests, a litchi fitness cultivation technology, a light insect trapping and killing technology, a color insect trapping and killing technology, a biopesticide prevention and control technology, a one-spraying-three-province synergistic and decrement pesticide application technology and a precise forecasting technology are integrated. The method has the advantages that operation is simple, litchi planting operators can easily understand the method, a series of green prevention and control technologies are integrated, the green prevention and control effect is obvious, the amount of fertilizer and pesticide for the litchis is reduced remarkably, good economic benefits are obtained, and the method is suitable for green and sustainable development of the litchis.

The invention provides a control method for apple alternaria leaf spot, and belongs to the technical field of crop disease control. The prevention and treatment method comprises the following steps: spraying a foliar biological pesticide fertilizer to apple trees; the foliar biological medical fertilizer comprises a bacillus fermentation product and a trichoderma fermentation product, the bacillus is at least one of bacillus amyloliquefaciens TS-1203, bacillus subtilis B1 and bacillus subtilis BS-1208, and the bacillus is at least one of bacillus amyloliquefaciens TS-1203, bacillus subtilis B1 and bacillus subtilis BS-1208; the trichoderma is at least one of T6 and Ym. The combined action of bacillus and trichoderma is utilized, the morbidity of apple alternaria leaf spot can be effectively reduced, the growth of apple trees can be promoted, the photosynthetic capacity is improved, the combination of disease prevention and yield increase is realized, and the method is environment-friendly and suitable for green agricultural development.

The invention discloses and relates to a strain capable of resisting saline and alkaline and producing IAA (Indoleacetic Acid). The strain is classified and named as bacillus atrophaeus, and the preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) NO.29799. The strain is preserved in China General Microbiological Culture Collection Center on January 29, 2024. The bacillus atrophaeus HHQGTS13-1 can grow under the condition that the salt content is higher than 3%, can generate indoleacetic acid, cellulase, amylase, protease and ligninase, can inhibit various plant pathogenic bacteria, such as banana anthracnose, tomato gray mold, cotton verticillium wilt, rice sheath blight disease, wheat head blight, banana fusarium wilt, capsicum white spot and the like, and can be used for preparing the bacillus atrophaeus HHQGTS13-1. Particularly, the compound plays an important role in preventing and treating wheat scab, banana anthracnose and capsicum white spot. The strain can promote plant growth in a saline-alkali environment, and can be used for improving soil quality, developing special microbial fertilizers, microbial agents and biopesticides for saline-alkali soil, relieving crop salt stress damage and increasing crop yield.

The invention provides application of dsRNA in inhibition of reproductive capacity of bemisia tabaci, and belongs to the technical field of pesticides. The dsRNA is one or more of dsBtInR1 and dsBtInR2, and the dsRNA is one or more of dsBtInR1 and dsBtInR2. According to the invention, two bemisia tabaci insulin receptor genes BtInR1 and BtInR2 are found, and after the expression levels of BtInR1 and BtInR2 in bemisia tabaci are knocked down, a JH signal channel can be influenced by interfering an insulin signal channel, and finally, the reproductive capacity of the bemisia tabaci is inhibited, so that a theoretical and application basis is provided for developing and producing green biopesticide for preventing and treating the bemisia tabaci.

The invention discloses Lunasporgiospora chienii and application thereof, the strain number of the Lunasporgiospora chienii is JSAFC 2261, the Lunasporgiospora chienii is preserved in China General Microbiological Culture Collection Center on September 23, 2024, and the preservation number of the Lunasporgiospora chienii is CGMCC No.41524. The invention further discloses a preparation method of the Lunasporgiospora chienii. The ensiformospora strain provided by the invention is strong in pathogenicity to fall webworms and larvae of the larvae of the Artemisia cordata, is environment-friendly and pollution-free, is not easy to generate drug resistance, can be used as a living body biopesticide, and has very strong application potential in biological prevention and control of the fall webworms and / or the larvae of the Artemisia cordata.

The invention discloses an application of a small peptide PEP914 or PEP890 in preparation of a biopesticide, and belongs to the technical field of biology. The biopesticide comprises a small peptide PEP914 or PEP890 and is a biopesticide for resisting bacterial leaf spot, rust disease or phytophthora root rot, the amino acid sequence of the small peptide PEP914 is shown as SEQ ID No.1, and the amino acid sequence of the small peptide PEP890 is shown as SEQ ID No.2. The small peptide PEP914 or PEP890 is applied to preparation of the biopesticide, a novel biopesticide thought is provided, and the problems that in the prior art, chemical pesticides are prone to remaining, environment problems are prone to being caused, and pathogens generate drug resistance are solved.

The invention relates to a brand-new microbial natural metabolite, namely Fcl-8, which is derived from a fermentation solution of Xenorhabdius budapestensis XBD8, and is characterized in that the Fcl-8 is a new microbial natural metabolite, namely Fcl-8, which is derived from the fermentation solution of the Xenorhabdius budapestensis XBD8. The purified Fcl-8 is a snow white flocculent crystal and is very easy to dissolve in water, and the solid state of the purified Fcl-8 is as shown in Figure 1. The chemical structural formula of the Fcl-8 is as shown in a figure 2, the chemical formula is C57H102N14O12, the molecular weight is 1175.78744, and the typical secondary mass spectrum information of the Fcl-8 is as shown in a figure 3. The Fcl-8 is derived from a microbial natural metabolite, is novel in structure and high in biological activity, and has very high potential to be developed into a novel biopesticide.

The invention relates to the field of biopesticide and microbial fertilizer, in particular to bacillus subtilis wettable powder and a preparation method thereof. The bacillus subtilis wettable powder is prepared from the following preparation raw materials in parts by mass: 40 to 45 parts of bacillus subtilis fermentation liquor, 25 to 28 parts of a bio-based carrier, 0.5 to 0.7 part of sodium carboxymethyl cellulose, 1 to 1.2 parts of amino-oligosaccharin, 3 to 5 parts of a composite surfactant, 0.8 to 1.2 parts of a spore germination agent, 1.5 to 2 parts of a protective agent, 0.2 to 0.3 part of an anti-freezing agent and 0.2 to 0.3 part of a synergist. After the bacillus subtilis wettable powder is applied to a paddy field, the spore germination speed is high, the germination rate is high, the bacillus subtilis wettable powder is free of toxic effects on people and livestock and convenient to use, the fertilizer efficiency and the rice disease control effect of the bacillus subtilis wettable powder can be obviously improved, the dosage of spores is reduced, and the cost is reduced. The adhesiveness and conductivity of the bacillus subtilis wettable powder on rice can be improved through the composite surfactant, so that the bacillus subtilis wettable powder can be better attached to leaf surfaces and stem surfaces of the rice, and the control effect of the bacillus subtilis wettable powder on the neck blast of the rice is improved.

The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.

The invention discloses a camellia oleifera forest planting ecology digital monitoring management system based on the Internet of Things, and relates to the technical field of planting ecology supervision. Dynamic ecological grid data is combined with an Internet of Things sensor and unmanned aerial vehicle patrol data, a blank area is filled through a spatial interpolation technology, and a real-time camellia oleifera forest ecological monitoring system is formed; dynamically updating a disease and pest risk distribution map through a disease and pest diffusion model and unmanned aerial vehicle patrol data, and identifying a high-risk area in combination with diffusion path simulation; the unmanned aerial vehicle is linked to perform quantitative spraying of biopesticide, prevention and control operation is performed only in a high-risk area, the pesticide usage amount is reduced, and soil microbial communities and an ecological system are protected; through nutrient diffusion and permeation simulation, the influence of a fertilization scheme on soil nutrient loss is evaluated, the fertilization amount and fertilization time are optimized, nutrient waste and water pollution risks are reduced, the irrigation amount and strategy are dynamically adjusted, the water resource utilization efficiency is optimized, and excessive irrigation or drought pressure is avoided.

The invention discloses a preparation method and application of a sophocarpidine nano-pesticide, dendritic mesoporous silica nanoparticles are ultrasonically dispersed in a methanol solution of sophocarpidine, the mixture is stirred for 45-50 h in a dark place at 10-30 DEG C for a reaction, after the reaction, precipitates are centrifugally collected, washed and freeze-dried, and the sophocarpidine nano-biopesticide is obtained. The sophocarpidine nano biopesticide is prepared by taking dendritic mesoporous silica nanoparticles as a carrier, and dendritic mesoporous silica is of a dendritic mesoporous structure and has the characteristics of larger porosity, uniform particle size, high drug loading rate, slow control effect and the like. The dendritic mesoporous silica has the advantages that the dendritic mesoporous silica can be used for preventing and treating trunk-boring, basal and root-eating pests, the matrine as a biological pesticide can avoid the problems of photolysis and the like after being loaded into the dendritic mesoporous silica, the prevention and treatment effect is improved, the drug resistance of the pests is reduced, the goals of reduction and synergism are achieved, and a new thought is provided for sustainable prevention and treatment.

The invention provides bacillus subtilis Sneb2016, a culture, a biological control product, a method and application, and particularly belongs to the technical field of microbial pesticides. The bacillus subtilis Sneb2016 disclosed by the invention is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.30519. The bacillus subtilis Sneb2016 has the effect of inducing tomatoes to generate resistance to the root knot nematode disease, can be prepared into a biological control fungicide for preventing and treating the tomato root knot nematode disease, effectively prevents and treats meloidogyne incognita infestation, has a remarkable effect, can promote plant growth, and has a good application prospect in prevention and treatment of the tomato root knot nematode disease. Good application prospects are realized in the aspect of preventing and treating tomato root knot nematode diseases.

The invention relates to a Tarromyces sp. Strain and application thereof, the Tarromyces sp. Strain is named as Tarromyces sp. Strain F19, the preservation number is GDMCC No: 65365, and the preservation date is October 28, 2024. The Tarromyces sp. Strain is named as Tarromyces sp. Strain F19, the preservation number is GDMCC No: 65365, and the preservation date is October 28, 2024. According to the invention, a new strain of cyanobacteria with phytopathogen resisting and plant growth promoting effects is separated from rhizosphere soil of corn and is preserved, and the strain has a remarkable inhibition effect on various phytopathogens such as fusarium oxysporum, phytophthora nicotianae or Kleiella solani, and can be used as a biocontrol bacterium for preventing and treating various plant diseases; in addition, the strain can also be used for plant growth promotion. The strain resources of the biocontrol bacteria are enriched, and the method can be applied to the development of biopesticides.

The bacillus velezensis MY-8 disclosed by the invention has obvious broad-spectrum antibacterial activity, and has an obvious inhibition effect on various plant pathogenic bacteria including cabbage alternaria alternata, rhizopus arrhizus, cladosporium very fine, fusarium tripteroides, alternaria alternata, Columbia cladosporium, botryosphaeria dothidea, fusarium oxysporum, geotrichum candidum, colletotrichum gloeosporioides and A. arundinis, and the bacillus velezensis MY-8 has an obvious inhibition effect on various plant pathogenic bacteria such as bacillus velezensis MY-8. The compound has a remarkable control effect on downy mildew, is expected to be prepared into a microbial preparation for biological control, and can be used as a biopesticide, a bio-fertilizer, a plant growth promoter and the like. The bacillus velezensis MY-8 disclosed by the invention can also express a structural domain containing protein of DUF4393, so that the bacillus velezensis MY-8 has potential bacteriophage infection resistance.

The invention relates to bacillus velezensis B313-6 and application thereof in inhibiting colletotrichum gloeosporioides of ginseng, and belongs to the technical field of agricultural microorganisms. The invention discloses bacillus velezensis B313-6, the preservation number of the bacillus velezensis B313-6 is CGMCC (China General Microbiological Culture Collection Center) No.31782, and the invention provides a preparation method of the bacillus velezensis B313-6 microbial inoculum. The bacillus velezensis B313-6 and the microbial inoculum thereof have high bacteriostatic activity on Colletotrichum panaccolica of ginseng, effectively reduce the occurrence of anthracnose of ginseng or American ginseng, are safe to the growth of ginseng or American ginseng, have no phytotoxicity, have no pollution to the environment, and can be widely applied to the field of biological preparations of ginseng or American ginseng, so that the bacillus velezensis B313-6 and the microbial inoculum thereof can be widely applied to the field of biological preparations of ginseng or American ginseng. The compound has good biopesticide development potential and application prospect in the aspect of preventing and treating anthracnose of ginseng or American ginseng, and has a certain growth promoting effect on ginseng roots.

The invention discloses a double-stranded RNA (Ribonucleic Acid) aiming at hemiptera insects as well as a pesticide composition and application of the double-stranded RNA. The dsRNA provided by the invention is used as a biopesticide, has the characteristics of high efficiency, specificity, fast degradation and no residue, realizes the prevention and control of brown planthopper through an RNAi mechanism, and is beneficial to reducing the use of chemical pesticides. The invention provides a brand new brown planthopper target gene as a target of RNA interference. The survival rate result shows that the genes play an important role in the survival process of the brown planthopper, are effective targets for preventing and treating the brown planthopper by using a gene silencing means, and have a wide application prospect. Correspondingly, the invention provides a plurality of dsRNA sequences aiming at the targets, and part of the sequences show unprecedented brown planthopper control efficiency.

The invention discloses a double-stranded RNA (Ribonucleic Acid) aiming at hemiptera insects as well as a pesticide composition and application of the double-stranded RNA. The dsRNA provided by the invention is used as a biopesticide, has the characteristics of high efficiency, specificity, fast degradation and no residue, realizes the prevention and control of brown planthopper through an RNAi mechanism, and is beneficial to reducing the use of chemical pesticides. The invention provides a brand new brown planthopper target gene as a target of RNA interference. The survival rate result shows that the genes play an important role in the survival process of the brown planthopper, are effective targets for preventing and treating the brown planthopper by using a gene silencing means, and have a wide application prospect. Correspondingly, the invention provides a plurality of dsRNA sequences aiming at the targets, and part of the sequences show unprecedented brown planthopper control efficiency.

The invention relates to the technical field of microorganisms, and particularly provides application of bacillus amyloliquefaciens BA-89 in crop growth promotion and verticillium dahliae antagonism. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.36498. The strain can secrete multiple extracellular enzymes (including protease, amylase, cellulase and glucanase), has the growth promoting characteristics of producing ammonia, dissolving potassium and the like, and can tolerate high temperature and ultraviolet stress; the compound has a remarkable antagonistic effect on various plant pathogenic bacteria (such as verticillium dahliae, fusarium oxysporum and phytophthora capsici); by inoculating the strain on cotton, the plant growth can be obviously promoted, the plant height, stem diameter, root length, leaf area and biomass are improved, and meanwhile, the disease index of verticillium wilt and the colonization amount of pathogenic bacteria at the root are effectively reduced. The strain disclosed by the invention can be used as a biological fertilizer and a biological pesticide, is used for cotton cultivation and disease prevention and control, and has a wide application prospect.

The invention provides a microbial agent as well as a preparation method and application thereof. The microbial agent comprises an artificial strain, namely a bacillus velezensis P43-DegQ strain, which is obtained by carrying out genetic engineering oriented modification on bacillus velezensis XY40-1 serving as an engineering bacterium. The method comprises the following steps: replacing an original promoter of a DegQ gene in bacillus velezensis XY40-1 with a P43 promoter, connecting the DegQ gene in the XY40-1 with a PBE-P43 vector to construct a P43-DegQ recombinant expression vector, and introducing the P43-DegQ recombinant expression vector into the bacillus velezensis to obtain a bacillus velezensis P43-DegQ strain. According to the invention, the yield of the bacillus velezensis abinogen is improved through genetic engineering oriented modification, so that the microbial control effect of a microbial agent containing the strain is improved. A resonance biopesticide suspending agent and a resonance microbial seed coating agent prepared from the microbial agent are subjected to resonance treatment, the effects of plant epidemic disease prevention and control and seed germination are greatly improved compared with the prior art, and the microbial agent has a very strong application prospect.

The present invention discloses a Bacillus Velez, a microbial agent and an application thereof in the prevention and treatment of pathogenic bacteria and diseases, and relates to the technical field of the prevention and treatment of pathogenic bacteria and diseases. The Bacillus Velez provided by the present invention exhibits a strong inhibitory effect on the growth of pathogenic bacteria hyphae. It has a significant antagonistic effect on a variety of pathogens and a strong blocking effect on the infection cycle of pathogens. Based on the above characteristics, the Bacillus Velez provided by the present invention can be developed into a biocontrol agent and a biological pesticide, and can be applied to agricultural production and pesticide research. Therefore, the present invention provides a good strain resource for the future development of microbial agents for the biological prevention and treatment of edible fungi diseases.

The present invention belongs to the field of Trichoderma secondary metabolites, and discloses a natural product derived from Trichoderma harzianum, a preparation method and an application thereof. The natural product has a structure shown in Formula I. The present invention separates and purifies the Trichoderma harzianum secondary metabolites to obtain the Trichoderma harzianum source natural product LU-11, which can be used to inhibit the growth of Fusarium graminearum PH-1, a wheat head blight disease, and induce and improve the disease resistance of wheat, providing a certain theoretical basis for the development of biological pesticides.