9results about How to "High fatality rate" patented technology

The invention relates to the technical field of biological control, and discloses a hyphantria cunea biocontrol bacterium and application thereof, the biocontrol bacterium is classified and named as Entomortierella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella chlamydosporella The hyphantria cunea biocontrol bacterium strain provided by the invention can obviously inhibit the survival activity of hyphantria cunea, the death rate of hyphantria cunea larvae can be increased to 96.7% after 7 days of treatment, and the hyphantria cunea larvae can die in the pupal stage and cannot be subjected to eclosion, so that the hyphantria cunea biocontrol bacterium strain can be used for preventing and treating hyphantria cunea, is typical biological prevention and treatment, can avoid the problems of drug resistance, environmental pollution and the like caused by chemical prevention and treatment, and has broad application prospects. Good application prospects are realized.

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 arthrobotrys guangdongensis and application of the arthrobotrys guangdongensis in prevention and treatment of pine wood nematode diseases. The invention relates to Arthrobotrys guangdonensis 20GD2519A, which is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 15, 2021, the address of the Arthrobotrys guangdonensis is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the postal code is 100101, and the preservation number is CGMCC No.23849. The Arthrobotrys guangdonensis 20GD2519A has the advantages that the Arthrobotrys guangdonensis 20GD2519A can be used for preparing a microbial inoculum; the invention directly aims at pathogenic nematodes, inhibits and kills nematodes, and reduces nematode density. The strain has strong sporulation ability, can maintain good hereditary stability, and still has high fatality rate to pine wood nematodes after continuous subculture. The survival rate of pine trees inoculated with the arthrobotrys guangdongensis suspension in advance can reach 72%.

The application discloses a kind of Gliocephalotrichum simmonsii and application thereof, the strain number of the Gliocephalotrichum simmonsii (Gliocephalotrichum simmonsii) is JSAFC 2056, and is preserved in China Microorganism Culture Collection Center on September 23, 2024, and the preservation number is CGMCC No.41562.The biocontrol agent of the application provided can significantly inhibit the survival activity of Anomala cuprea, and the survival activity of Anomala cuprea can be reduced to 0 after 28 days of treatment, and the biocontrol agent is environmentally friendly, non-toxic and harmless.The preparation method of the biocontrol agent of the application provided is simple, the culture requirement is low, and has good application prospect.

The application belongs to the technical field of pest control, and discloses a miRNA and application thereof, and specifically discloses application of gma-miR-4387c in pest control and / or preparation of a product for pest control. It is found for the first time that injection of gma-miR-4387c into pests (such as Spodoptera frugiperda) can significantly reduce the survival rate of 3rd instar larvae of Spodoptera frugiperda and reduce the food intake. The above research results prove that gma-miR-4387c can be used for controlling Spodoptera frugiperda larvae, and has the potential to be applied by constructing a transgenic plant.

This invention discloses a microbial combination with both disease prevention and growth promotion effects, along with its co-cultivation and application. Addressing the issues of insufficient synergistic effect and the need to improve the biocontrol and growth-promoting properties of existing co-cultivation technologies, this invention screens a specific strain combination (*Polyspora pinkis* NF-06 and *Bacillus belyssus* YB-1652) and employs a corresponding co-cultivation process: a specific semi-synthetic culture medium with soybean meal as the main nitrogen source, followed by simultaneous inoculation and culture. This process stably stimulates the synergistic interaction between the two strains, resulting in a product with a mortality rate of over 95.3% against second-instar larvae of the southern root-knot nematode, and significantly promotes the growth of crops such as tomatoes, achieving a synergistic effect of controlling root-knot nematodes and promoting plant growth.

This invention discloses a strain of *Backusella circina* and its application. The strain number of *Backusella circina* is JSAFC 2057, which was deposited at the China General Microbiological Culture Collection Center (CGMCC) on September 23, 2024, with accession number CGMCC No. 41522. This fungal agent can significantly inhibit the survival activity of the fall webworm (*Triplophysa fulvidraco*), reducing the survival activity of fall webworm larvae to zero after 7 days of treatment and culture. The fungus provided by this invention is a biocontrol fungus for the control of the major pest, the fall webworm. It is characterized by strong pathogenicity against fall webworm larvae, environmental safety, and low likelihood of inducing pesticide resistance in pests, and can be applied to the biological control of the fall webworm.

The invention relates to the technical field of new materials in agricultural pest control, and discloses application of a nano material in promotion of growth of beauveria bassiana, and the nano material is SPc. According to the application of the nano material in promoting the growth of the beauveria bassiana, the nano material SPc can promote spore germination and hypha growth of the beauveria bassiana, so that the biomass and activity of the beauveria bassiana are promoted, the time required by invasion of fungi into the body surfaces of pests is effectively shortened, and meanwhile, the growth of the pests is promoted. The fatality rate of the beauveria bassiana on target pests is remarkably increased, the prevention and treatment mechanism of microorganisms is deepened, and a new way is opened up for research, development and application of biopesticides.

The invention relates to the technical field of pesticides, and discloses an insecticidal composition and application thereof.The insecticidal composition comprises active ingredients and is characterized in that the active ingredients comprise hypericin and calcium cyanamide, and the mass ratio of the hypericin to the calcium cyanamide is 1: (1000-10000). The invention also discloses an application of the insecticidal composition in prevention and control of mosquito insects. The active ingredients in the insecticidal composition are used in a proper proportion range, the fatality rate of the insecticidal composition on mosquito insects is remarkably higher than that of each single agent, the insecticidal composition has a synergistic effect in a certain proportion range, the control effect on the mosquito insects is remarkably improved, and the insecticidal composition is low in application dosage, low in toxicity and small in harm to the environment and other animals and has a good application prospect. The method is of great significance in preventing transmission of dengue viruses and other mosquito-borne viruses, protecting the environment and reducing harm to the environment.