11 results about "Aphid" patented technology

The application relates to the technical field of agricultural pest control, and specifically discloses an emergency disposal method for a cotton aphid outbreak in a dwarf and densely planted apple orchard. The method first completes three-dimensional containment by constructing a surface isolation belt, a main stem closed loop and an underground transverse blocking wall, simultaneously carries out insect source tracing and marking and pre-closed disposal, then sequentially implements underground insect source precise killing, crown layer time period precise killing, and finally realizes long-term protection through whole cycle closed loop control. The application is matched with a containment and repellent composition, an underground insect source disposal composition, a crown layer killing special composition and a killing paste, each composition is adapted to the scene requirement of the corresponding disposal link, the preparation process is simple, and the composition can be prepared and used immediately. The method can be used for emergency prevention and control after the cotton aphid outbreak in the dwarf and densely planted apple orchard, can quickly curb the spread of the cotton aphid in the whole orchard, greatly reduces the prevention and control difficulty, has high efficiency, long-term effect and safety, and can also be adapted to the special prevention and control scene before apple picking.

The utility model relates to the technical field of wheat planting, especially to a wheat planting insect prevention and killing device, which comprises a supporting seat, a supporting shaft is installed on the top of the supporting seat, the supporting shaft is slidably connected to an installation plate through a moving hole, a supporting outer thread is arranged on the outer surface of the supporting shaft, the supporting outer thread is threadedly connected to the inner surface of a lower supporting cylinder, a plurality of connecting shafts are connected to the circumferential surface of the installation plate, the outer surface of the connecting shafts is slidably connected to the inner surface of a connecting cylinder, the connecting cylinder is installed on the side of a yellow plate, the connecting shafts connected to the circumferential surface of the installation plate are arranged, the installation of a plurality of yellow plates can be realized, the installation plate is circular, the connecting shafts are equidistantly and circumferentially distributed, the yellow plates are equidistantly and circumferentially distributed above the supporting seat, the adhesive surface of the circular plate can be directed to different directions, the insect killing operation on the wheat aphids in multiple directions can be realized, and the common operation of the yellow plates can effectively increase the insect killing area of the device.

This invention relates to the field of smart plant protection technology, specifically a method for detecting winged aphids on sticky traps based on a two-level coordinate collaborative network. The method includes the following steps: collecting and standardizing images of winged aphids on sticky traps to construct a target detection dataset containing target size features; constructing a PCSNet-YOLOv12 target detection model, using YOLOv12 as the baseline model, setting a two-level coordinate attention (CA) module in its backbone network, adding a shallow feature extraction branch in its neck network, and introducing a Shape-NWD loss function to optimize the model's bounding box regression process. This invention provides an effective technical solution for constructing a real-time, automated intelligent pest monitoring system, and has significant application value in promoting the intelligent transformation of pest monitoring and green prevention and control practices.

This invention belongs to the field of agricultural nanoparticle formulations and green pest control technology, specifically relating to an insecticide nano-synergist Cu-TA, its preparation method, and its application. The Cu-TA consists of nanoparticles formed by the coordination assembly of copper ions and tannic acid. The Cu-TA can be used in combination with various insecticides to increase the sensitivity of brown planthoppers, white-backed planthoppers, cotton aphids, rice stem borers, and common thrips to pesticides, and to improve the field control effect on brown planthoppers. Furthermore, the combined use of Cu-TA and acetamiprid can reduce the actual heritability of resistance to acetamiprid in brown planthoppers, thereby delaying the development of resistance.

The utility model belongs to algae-eating insect cultivation technical field especially relates to algae-eating insect screening cultivation device, including incubator and support leg, the support leg fixed mounting is in the cultivation box bottom all around, the inside of cultivation box is provided with cultivation device, the cultivation device includes screening mechanism, washes screening mechanism, cleaning mechanism and aeration mechanism, the screening mechanism sets up in the inside of cultivation box, washes screening mechanism and set up in the back of cultivation box, the cleaning mechanism sets up in the inside of cultivation box bottom, the aeration mechanism sets up in the inside of cultivation box lower extreme. This algae-eating insect screening cultivation device, through setting up screening mechanism, through the starting motor through output shaft drive disc rotation, disc rotation drives mounting seat one eccentric rotation under the action of ball head rod, pulls screening box and reciprocates along the guide rod left and right and shakes, thereby makes the young algae-eating insect to pass through screening box, realizes the separation of larva and adult, prevents adult predation larva, improves the algae-eating insect cultivation efficiency.

This invention belongs to the field of pesticide and phytochemistry technology, specifically relating to an insecticidal alkaloid compound from *Prunus persica* var. *pinnata*, its preparation method, and its application. The structure of the *Prunus persica* var. *pinnata* alkaloid compound is shown below. This alkaloid compound, isolated from *Prunus persica* var. *pinnata*, is designated as compound Pactermine X. It is a novel alkaloid isolated from *Prunus persica* var. *pinnata*. Its stomach poison and repellency activities against pea aphids were determined. The results showed that compound Pactermine X exhibited strong LC50 activity against pea aphids at 48 h. 50 The concentration was 0.272 mg / mL. At concentrations of 0.5 mg / mL, 0.25 mg / mL, 0.125 mg / mL, and 0.0625 mg / mL, the avoidance rates over 12 hours were 100%, 72.5%, 42.5%, and 30%, respectively.

The application discloses a kind of dsRNA of Sitobion avenae CYP4C1 gene and application thereof, relate to the technical field of agricultural pest control, the cDNA of Sitobion avenae CYP4C1 gene is cloned in the application, its nucleotide sequence is as shown in SEQ ID NO.1;And the dsRNA of the gene is prepared, nucleotide sequence is as shown in SEQ ID NO.2;The preparation method of the dsRNA includes total RNA extraction, cDNA synthesis, target gene cloning, T7 promoter fragment amplification and in vitro transcription purification steps;The dsRNA of Sitobion avenae CYP4C1 gene and application thereof, by feeding method, the dsRNA is introduced into the 3rd instar nymph of Sitobion avenae, and after feeding 48h, CYP4C1 gene silencing efficiency reaches 58%, can significantly reduce the survival rate and the amount of aphid of Sitobion avenae on imidacloprid seed dressing wheat seedling, target strong, prevention and control effect is remarkable, no chemical residue.

This invention discloses a method for releasing cotton aphid parasitic wasps. By releasing the wasps at three different stages of cotton growth—from the three-leaf stage to the budding stage, the boll-forming stage, and the cotton boll-opening stage—and using a specific wasp-to-aphid ratio, the control effect on cotton aphids is stable and does not rebound. Simultaneously, it reduces pesticide use and residues, improves cotton quality and market competitiveness, protects farmland biodiversity and the ecological environment, and reduces the frequency of pesticide exposure for cotton farmers, thus mitigating the impact of pesticides on human health. The technical solution provided in this application is conducive to achieving green and sustainable development of the cotton industry.

The present application relates to a kind of organic greenhouse strawberry pest synergistic prevention and control method based on the system of conservation plants, belong to the field of agricultural organic planting biological control.The system of conservation plants is composed of small daisy as the conservation plant, aphid as prey and insect as natural enemy;The present application takes small daisy as the only core conservation plant, for attracting and carrying prey and natural enemy;Prey is the pure population of aphid inoculated on small daisy, as the exclusive food source of natural enemy;The natural enemy includes ladybird, small flower bug and tobacco blind bug, synergistically proliferate to form a complex natural enemy community, realize the directional diffusion of natural enemy to strawberry plant and prevent and control pests.

This invention belongs to the field of fruit tree resistance gene application technology, and relates to an apple transcription factor MYB79 gene and its application in improving apple resistance to the woolly aphid. The amino acid sequence of the protein encoded by the MYB79 gene is shown in SEQ ID NO:1, and the nucleotide sequence is shown in SEQ ID NO:2. This invention constructs a plant expression vector carrying the MYB79 gene and recombinant Agrobacterium, and obtains MYB79-overexpressing apple plants through Agrobacterium-mediated transformation. Functional verification results show that MYB79 gene overexpression can significantly improve apple resistance to the woolly aphid, reduce the feeding efficiency and survival rate of the woolly aphid, and significantly shorten the feeding time of the woolly aphid in the phloem of the transgenic plants, resulting in a significant decrease in survival rate, while having no significant impact on the normal growth and development of the apple plants. This invention provides new gene resources and technical support for molecular breeding of apples resistant to the woolly aphid and innovation of insect-resistant germplasm.

The application discloses a gallnut dwarfing and dense planting and precise layering inoculation method, which comprises five steps of dwarfing seedling cultivation of rhus copallinum, dwarfing and dense planting, soilless cultivation of winter host moss and overwintering and nursing of aphid, precise layering inoculation of aphid, field management and harvesting. A high adaptability rhus copallinum source is screened, dwarfing and dense planting is realized through multi-effect azole regulation, the soilless moss bed substrate is optimized to cultivate moss, 11000-13000 aphids are inoculated per square meter and temperature and humidity are controlled to overwinter, in spring, precise inoculation is carried out according to the three-layer structure of the rhus copallinum crown layer, matching different specifications of moss blocks, inoculation densities and components, water and fertilizer management and green prevention and control are combined with the period of insect galls, and natural airing and harvesting are carried out. The application constructs a collaborative planting system, is simple and convenient to operate, low in cost, improves the survival rate and the aphid knotting rate of aphid, realizes waste recycling, is suitable for large-scale and intensive planting, and significantly improves the yield and quality of gallnut.