7 results about "Fall webworm" patented technology

This invention discloses an antimicrobial peptide for controlling the fall webworm. Hcattacin1 Gene dsRNA and its application in the control of the American white moth. Hcattacin1 The gene's nucleotide sequence is SEQ ID NO: 1. This invention is based on antimicrobial peptides. Hcattacin1 dsRNA was genetically engineered, and a method for controlling the fall webworm using injection was established. Hcattacin1 An RNA interference system was used, and it was found that injection into the fall webworm (American white moth) achieved a significant gene silencing effect. Furthermore, the fall webworm was used in conjunction with other RNA interference methods. Hcattacin1 The combined use of dsRNA and biocontrol bacteria can significantly improve the control efficacy of biocontrol bacteria. This invention lays the theoretical foundation for the development of immunosuppressants that are safe for humans and animals, provides a new theory for the biological control of pests, and ultimately offers new strategies and approaches for pest control in my country's green agricultural production and sustainable development.

The utility model provides an aerial spraying device for fall webworm prevention and control, and relates to the field of spraying equipment for fall webworm prevention and control, the aerial spraying device comprises a movable chassis, a spraying assembly is installed at the top of the movable chassis, the spraying assembly comprises a pesticide box, and a stirring assembly is installed on the surface of the pesticide box. The stirring assembly comprises a motor, a speed regulator, a stirring shaft, stirring blades and a stirring rod, the motor and the speed regulator are both fixed to the top of the pesticide box, and the stirring shaft, the stirring blades and the stirring rod are all installed in an inner cavity of the pesticide box; according to the forest tree pesticide spraying device, the pesticide box, the conveying pump, the flow dividing pipe and the spraying head are arranged, the effect of spraying pesticide to forest trees is achieved, the motor, the speed regulator, the stirring shaft, stirring blades and stirring rods are matched, the pesticide in an inner cavity of the pesticide box can be stirred, and therefore the situation that the pesticide precipitates in the inner cavity of the pesticide box can be prevented; the use effect of the pesticide is effectively improved, and the control effect of the white moth is further improved.

This invention relates to a HcKynU Genes, dsRNAs targeting these genes, and their applications. This invention focuses on horizontal gene transfer. HcKynU Designing dsRNAs specifically for the control of the fall webworm (Russian white moth) not only allows for precise pest control but also avoids threatening non-target species. Injecting this dsRNA into the fall webworm effectively silences its target gene, leading to increased mortality and impaired normal growth and development, ultimately achieving control. This invention provides a new and effective approach for controlling the fall webworm.

The invention relates to the technical field of biological prevention and control, and particularly discloses a method for field prevention and control of fall webworms by using brachycera pubescens, which comprises the following steps: collecting and domesticating brachycera pubescens species, raising hosts in a standardized manner, propagating brachycera pubescens, and regularly rejuvenating populations. And releasing the hyphantria cunea in a pupal stage at a density of 50-250 per mu under a suitable environmental condition. According to the method provided by the invention, by optimizing the bee pupae ratio and the field release density, the field parasitism rate of the brachycera majorana is remarkably increased, the highest parasitism rate can reach 62.5% and is far higher than the natural parasitism rate, and a new effective way is provided for green and sustainable prevention and control of fall webworms.

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.

This application relates to the field of pest control, specifically providing a trunk-encircling pupation device for controlling the fall webworm and its usage method. The device includes a base box, fixing rods, connectors, and a fence. The base box has an open top, and two fixing rods are fixedly installed on the inner edge of the base box, located at both ends of the inner edge. Connectors are connected to the upper ends of the two fixing rods, extending outwards from the base box. The suspended ends of the two connectors connect to both ends of the fence. The area enclosed by the fence, connectors, and fixing rods is larger than the area of ​​the open top of the base box. In use, the fixing rods are tied to the tree trunk, and rod-shaped filler is placed between the base box and the fence. After pupation is complete, the rod-shaped filler is removed and disposed of, and replaced with new rod-shaped filler. Multiple gradually narrowing gaps are formed in the rod-shaped filler, providing a stable and well-ventilated pupation environment for the fall webworm, resulting in good pupation attraction.

This invention discloses an RNA biopesticide targeting the HcAmy2 gene of the fall webworm and its preparation method, relating to the fields of biopesticides and green pest control technology. The active ingredient of the biopesticide is double-stranded RNA targeting the α-amylase gene of the fall webworm, namely dsHcAmy2, and is encapsulated by chitosan to form a chitosan / dsRNA nanocomposite. The degree of deacetylation of the chitosan is ≥95%, and the viscosity is 100-200 mPa·s. The nanoparticles prepared by this invention can effectively protect dsRNA from degradation, significantly enhance its stability and RNA interference efficiency, effectively silence the key gene HcAmy2 of the fall webworm, destroy its multi-host adaptability, and have a highly efficient and specific control effect on fall webworm larvae.