A sweet potato ground beetle parasitoid trapping device

Abstract

The utility model relates to a sweet potato field scolytus nitidus parasitic bee trapping device, including support, rain cover, storage box and air supply mechanism, rain cover is fixed in the upper end of support, and the upper portion of storage box is arranged in the support and is located the just below of rain cover, even and densely be equipped with a plurality of gas holes on the storage box, and the middle part of storage box bottom plate places the attractant lure core, air supply mechanism sets up in the upper port of storage box, air supply mechanism includes the grid support fixed in the upper port of storage box, fan blade and driver, and the driver is fixed in the center of grid support, and the pivot of fan blade is connected with the output shaft of driver, this device places attractant lure core in the gas storage box of circular truncated cone, and the fan of storage box port setting sends air to the inside, accelerates the volatilization diffusion of attractant, avoids appearing its attraction effect to the poor phenomenon of parasitic bee.

Description

Technical Field

[0001] This utility model relates to the field of parasitic wasp attraction, and in particular to a device for attracting parasitic wasps of grubs in sweet potato fields. Background Technology

[0002] White grubs are a collective term for the larvae of the superfamily Scarabaeidae in the order Coleoptera. They are elusive in soil activity and are recognized as difficult-to-predict and control pests. White grubs primarily damage various field crops, including sweet potatoes, affecting not only the marketability and yield of the tubers but also making the bitten tubers susceptible to pathogen infection. Reports indicate that white grub damage to crops such as sweet potatoes can lead to yield losses of 12-80%, and in severe cases, even total crop failure.

[0003] Chemical control remains a widely used method for controlling grubs. However, due to the concealed nature of grubs' underground habitat, high demands are placed on the application methods, dosages, timing, and duration of effectiveness of pesticides. This results in less than ideal effectiveness of chemical control in production, and pesticide residues from chemical control can threaten food safety, environmental safety, and public health. Therefore, in recent years, non-chemical control measures for grubs, such as biological control, physical control, and ecological regulation, have gradually gained attention.

[0004] Parasitic wasps are important natural enemies of grubs. The female parasitic wasp can locate grubs in the soil, then burrow into the ground to find them. It first stings, temporarily paralyzing the grub, and then lays its eggs on the grub's body. After hatching, the parasitic wasp larvae insert their mouthparts into the grub's body wall to feed on its body fluids, causing the grub to die. Using parasitic wasps to control grubs can reduce the grub population in the field and decrease pesticide use, showing promising application prospects.

[0005] Surveys indicate that parasitic wasps are relatively few in number in the field, with a parasitism rate of only about 5% on field grubs. To improve the parasitism rate of parasitic wasps on field grubs, previous research conducted screening experiments on parasitic wasp attractants. An aromatic compound was found to effectively attract parasitic wasps, significantly increasing the parasitism rate on field grubs and providing good control over them. This attractant has been patented (A parasitic wasp attractant and its preparation method and application, ZL201410012885.7). However, the attractant's effectiveness is greatly affected by its diffusion concentration and diffusion range, resulting in poor attraction for parasitic wasps. Utility Model Content

[0006] To address the aforementioned problems, this utility model proposes a device for attracting parasitic grubs in sweet potato fields.

[0007] The technical solution of this utility model is: a device for attracting parasitic grubs in sweet potato fields, including a support frame, a rain cover, a storage box, and a ventilation mechanism; the rain cover is fixed to the upper end of the support frame, the storage box is set on the upper part of the support frame and located directly below the rain cover, and there is a certain distance between the two to avoid the rain cover affecting the volatilization and diffusion of the attractant inside the storage box; several ventilation holes are evenly and densely arranged on the storage box, and the ventilation holes are round holes; the attractant core is placed in the middle of the bottom plate of the storage box; the ventilation mechanism is set at the upper port of the storage box.

[0008] Preferably, the air supply mechanism includes a grid bracket fixed to the upper port of the storage box, a fan blade, and a driver. The driver is fixed at the center of the grid bracket, and connecting rods are provided around the grid bracket. The connecting rods are fixedly connected to the inner side of the storage box, and the rotation shaft of the fan blade is connected to the output shaft of the driver.

[0009] Preferably, the surface of the rain cover is provided with a solar panel, which is evenly distributed on the surface of the rain cover to ensure that the entire device is subjected to uniform force, improve its stability in use, and provide power to the driver through the solar panel.

[0010] Preferably, the area of ​​the solar panel covering the surface of the rain cover is not less than 50%.

[0011] Preferably, the storage box is frustum-shaped and the rain cover is conical, with the size of the conical rain cover being larger than the size of the frustum-shaped storage box.

[0012] Preferably, the bracket includes two vertical support rods arranged side by side, the rain cover is fixed in the middle of the two vertical support rods, the vertical support rods are stainless steel pipes, and the lower end of the vertical support rods is provided with a pointed tip.

[0013] Preferably, the vertical support rod is provided with a sliding sleeve, and a set screw is connected in the threaded hole in the middle of the sliding sleeve. After the set screw rotates in the threaded hole, it can contact the vertical support rod. The two sides of the storage box are respectively connected to two sliding sleeves.

[0014] Preferably, the side of the sliding sleeve is provided with a support plate in the radial direction, the outer side of the storage box is provided with an ear plate, and both the ear plate and the support plate are provided with through holes in the middle. The ear plate and the connecting plate are fixedly connected by bolts.

[0015] The beneficial technical effects of this utility model are: This device places the attractant lure core inside a frustum-shaped, breathable storage box. A fan installed at the port of the storage box blows air inward to accelerate the volatilization and diffusion of the attractant, avoiding poor attraction to parasitic wasps. A solar panel is also installed to power the fan. When the grub infestation is at its peak, turning on the fan increases the concentration and range of the attractant in the sweet potato field, thereby increasing the number of parasitic wasps in the field, increasing the parasitism rate and mortality of grubs. When the fan is turned off during off-peak periods, it reduces the volatilization and diffusion of the attractant, saving attractant. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 A magnified view of a portion of the image; Figure 3 This is a schematic diagram of the internal structure of 1; Figure 4 This is a schematic diagram of the main structure of this utility model; Figure 5 yes Figure 4 A schematic diagram of the AA-direction cross-section structure; Figure 6 yes Figure 1 A schematic diagram of a structure with solar panels mounted on a rain cover.

[0017] In the diagram, 1. Rain cover, 2. Storage box, 21. Ventilation hole, 22. Placement platform, 23. Lure core, 31. Fan blade, 32. Driver, 33. Grid bracket, 4. Solar panel, 51. Vertical support rod, 52. Pointed end, 53. Sliding sleeve, 54. Set screw, 55. Support plate, 56. Ear plate, 57. Bolt. Detailed Implementation

[0018] Example 1, see appendix Figure 1 , 3 A device for attracting parasitic wasps in sweet potato fields mainly consists of a support frame, a rain cover 1, a frustum-shaped storage box 2, and an air supply mechanism. The conical rain cover 1 is fixed to the upper end of the support frame. The storage box 2 is located on the upper part of the support frame and directly below the rain cover 1. The rain cover can completely cover the storage box to ensure rain protection. Several ventilation holes 21 are evenly and densely arranged on the storage box 2. A placement platform 22 is provided in the middle of the bottom plate of the storage box 2 for placing the attractant lure 23. After the attractant lure 23 evaporates, it can flow evenly out from the ventilation holes 21. The air supply mechanism is located at the upper port of the storage box 2. The air supply device blows air into the storage box 2 from the upper port to accelerate the evaporation and diffusion of the attractant lure 23 and avoid the phenomenon of poor attraction effect on parasitic wasps.

[0019] Example 2, see appendix Figure 3-6This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the air supply mechanism includes a grid bracket 33 fixed to the upper port of the storage box 2, a fan blade 31, and a driver 32. The driver is fixed at the center of the grid bracket, and the rotation shaft of the fan blade 31 is connected to the output shaft of the driver 32. The grid bracket 33 provides support for the driver 32, and the driver drives the fan blade to rotate, supplying air into the storage box 2. The grid structure of the grid bracket 33 has little disturbance to the airflow, and the airflow can enter the storage box 2 evenly and stably.

[0020] A solar panel 4 is installed on the surface of the rain cover 1, which provides power to the driver 32. The solar panel 4 covers an area of ​​no less than 50% of the surface of the rain cover 1. The installed solar panel 4 can provide sufficient power to the fan. When the electric fan is turned on during the peak period of grub infestation, it can increase the diffusion concentration and range of the attractant in the sweet potato field, thereby increasing the number of parasitic wasps in the field, increasing the parasitism rate and mortality of grubs. When the electric fan is turned off during the off-peak period, it can reduce the volatilization and diffusion of the attractant and save the attractant.

[0021] Example 3, see appendix Figure 1-2 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the support consists of two vertical support rods 51 arranged side by side, and the lower end of the vertical support rods 51 is provided with a pointed head 52. In the sweet potato field, the installation of the trapping device can be completed simply by inserting the vertical support rods 51 into the soil. It has the advantages of simple structure, easy to carry and operate.

[0022] The sliding sleeve 53 has a support plate 55 radially arranged on its side, and the storage box 2 has an ear plate 56 on its outer side. The ear plate 56 and the connecting plate are fixedly connected by bolts 57. The storage box 2 is connected to the sliding sleeve 53 through the ear plate 56 and the connecting plate, which facilitates the assembly, disassembly and maintenance of each component.

[0023] The vertical support rod 51 is equipped with a sliding sleeve 53, and a set screw 54 is connected in the threaded hole in the middle of the sliding sleeve. The two sides of the storage box 2 are respectively connected to the two sliding sleeves 53. The storage box 2 can slide up and down between the two vertical support rods 51 through the two sliding sleeves 53 and be locked by the set screw 54. Therefore, the height of the attractant storage box 2 can be adjusted according to the needs to achieve the best attraction effect.

Claims

1. A device for attracting parasitic grubs in sweet potato fields, characterized in that: It includes a bracket, a rain cover, a storage box, and an air supply mechanism; the rain cover is fixed to the upper end of the bracket, the storage box is set on the upper part of the bracket and located directly below the rain cover, and several ventilation holes are evenly and densely arranged on the storage box. The attractant core is placed in the middle of the bottom plate of the storage box; the air supply mechanism is set at the upper port of the storage box. The air supply mechanism includes a grid bracket fixed to the upper port of the storage box, fan blades, and a driver. The driver is fixed at the center of the grid bracket, and the rotation shaft of the fan blades is connected to the output shaft of the driver. The bracket includes two vertical support rods arranged side by side, with pointed ends at the lower ends of the vertical support rods; The vertical support rod is equipped with a sliding sleeve, and a set screw is connected to the threaded hole in the middle of the sliding sleeve. The two sides of the storage box are respectively connected to the two sliding sleeves. The side of the sliding sleeve is provided with a support plate in the radial direction, and the outer side of the storage box is provided with an ear plate. The ear plate and the connecting plate are fixedly connected by bolts.

2. The sweet potato field grub parasitic wasp trapping device according to claim 1, characterized in that: The surface of the rain cover is equipped with solar panels, which provide power to the drive.

3. The sweet potato field grub parasitic wasp trapping device according to claim 2, characterized in that: The area of ​​the solar panel covering the surface of the rain cover shall not be less than 50%.

4. The device for attracting parasitic grubs in sweet potato fields according to claim 1, characterized in that: The storage box is truncated cone-shaped, and the rain cover is conical.

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