Trapping and feeding integrated device for fruit flies
By designing an integrated device for attracting and rearing fruit flies, the problem of existing devices being unable to collect eggs and larvae has been solved, enabling low-cost and convenient fruit fly acquisition throughout the entire process, suitable for laboratory and field use.
Patent Information
- Application Number
- CN202520996648.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-05-20
AI Technical Summary
Existing trapping devices can only capture adult fruit flies and cannot collect eggs and larvae, resulting in high costs and poor data accuracy in laboratory research.
Design a fruit fly trapping and rearing integrated device, including a trapping box, a protective tray and a rearing box. It uses a screen to trap adult fruit flies, facilitate egg laying, separate larvae from the fruit and collect pupae. Made of polyethylene or ABS material, the device has a simple and convenient structure and a modular design to meet the needs of multiple scenarios.
It enables the entire process of fruit fly acquisition, significantly reduces the cost of larval acquisition, simplifies indoor rearing, reduces equipment space occupation, and is suitable for laboratory and field use.
Smart Images

Figure CN223886023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural pest control technology, specifically to an integrated device for attracting and raising fruit flies. Background Technology
[0002] Fruit flies are a significant invasive species that severely damages global agriculture. Their larvae feed on fruits, vegetables, and other crops, leading to severe yield reductions or even total crop failure. Statistics show that fruit fly infestations cause agricultural economic losses of billions of yuan annually in my country. Therefore, developing integrated fruit fly trapping and rearing devices is of great importance for research into the biological characteristics of fruit flies and for the development of green pest control technologies.
[0003] To study the biological characteristics of fruit flies, trapping devices are typically used to capture live adult fruit flies for research. With the development of agricultural pest control technologies, pest control agencies have discovered that fruit fly larvae are a crucial element in studying the biological characteristics of fruit flies. However, existing trapping devices can only capture adults and cannot collect eggs and larvae for laboratory research or breeding of natural enemies. While artificial breeding can obtain fruit fly larvae, laboratory rearing is costly and it is difficult to completely simulate the natural oviposition environment, affecting the accuracy of subsequent experimental data.
[0004] Therefore, providing an integrated device for attracting and raising fruit flies to overcome the shortcomings of the existing technology is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] Therefore, this utility model provides an integrated device for attracting and raising fruit flies, which solves the problem in the prior art that the trapping device can only capture adult flies, resulting in the inability to collect eggs and larvae for experimental research.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model discloses an integrated device for attracting and raising fruit flies, comprising:
[0008] The trap box is a hollow structure with openings at the top and bottom. A screen is installed inside the trap box, and several through holes are opened through the side wall of the trap box. The through holes are located on the upper side of the screen.
[0009] A protective tray, the sides of which are formed with protective sidewalls around its outline; during the trapping process, the trapping box is placed on the upper surface of the protective tray;
[0010] The rearing box is a hollow structure with an open top. The rearing box is installed at the bottom of the trapping box, and the bottom of the rearing box is covered with culture sand for pupation. During rearing, the protective tray is reversed and covers the upper opening of the trapping box, and the rearing box is snapped into place at the lower opening of the trapping box.
[0011] Furthermore, a first connecting wall extends from the bottom of the side wall of the trapping box, and a second connecting wall extends from the top of the side wall of the feeding box. The first connecting wall and the second connecting wall are connected by an interference fit.
[0012] Furthermore, the side wall of the feeding box is provided with a through-hole for ventilation.
[0013] Furthermore, the aperture of the screen is 2.5-4.5 mm.
[0014] Furthermore, the trapping box, protective tray, and feeding box are all made of polyethylene or ABS material.
[0015] Furthermore, the height of the protective sidewall is less than the height of the screen to the bottom of the trap box.
[0016] This utility model has the following advantages:
[0017] This invention, through the design of a trapping box, protective tray, and rearing box, achieves a complete fruit fly harvesting process, encompassing adult fruit fly trapping, egg laying, larval separation from fruit, larval acquisition, pupa collection, and adult acquisition. This solves the problem of traditional techniques that can only capture adult fruit flies, requiring separate artificial breeding to obtain large quantities of larvae. It significantly reduces the cost of obtaining fruit fly larvae and simplifies indoor rearing for subsequent population expansion in experiments. Furthermore, the modular design of the trapping box, protective tray, and rearing box allows for easy switching between trapping and rearing modes, reducing equipment space requirements and meeting the needs of various scenarios, including laboratory and field applications. In addition, the components are simple in structure, easy to install, require no external power supply, have low deployment costs, and are easy to repair and replace in case of damage. Attached Figure Description
[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0020] Figure 1 A diagram illustrating the trapping state of the integrated fruit fly trapping and rearing device provided by this utility model;
[0021] Figure 2 A diagram illustrating the rearing state of the integrated fruit fly trapping and rearing device provided by this utility model.
[0022] Figure 3 Cross-sectional view of the trapping box and the rearing box provided by this utility model;
[0023] Figure 4 Provided by this utility model Figure 3 Enlarged view of the A-structure.
[0024] In the diagram: 1. Trapping box; 11. Screen; 12. Through hole; 13. First connecting wall; 2. Protective tray; 21. Protective side wall; 3. Feeding box; 31. Culture sand; 32. Second connecting wall; 33. Ventilation hole. Detailed Implementation
[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Please refer to Figures 1-4 The present invention discloses a fruit fly trapping and rearing integrated device, which consists of three parts, as follows: Figure 1 , Figure 2As shown, the device includes a trapping box 1, a protective tray 2, and a rearing box 3. The trapping box 1 is a hollow structure with openings at the top and bottom. A screen 11 is installed inside the trapping box 1, and several through holes 12 are formed through its side walls, located on the upper side of the screen 11. A protective sidewall 21 is formed around the side of the protective tray 2. During trapping, the trapping box 1 is placed on the upper surface of the protective tray 2. The rearing box 3 is a hollow structure with an opening at the top. The rearing box 3 is detachably installed at the bottom of the trapping box 3, and culture sand 31 for pupation is laid at the bottom of the rearing box 3. During rearing, the protective tray 2 is reversed and closed over the upper opening of the trapping box 1, and the rearing box 3 is snapped into place at the lower opening of the trapping box 1. In this embodiment, the trapping box 1, the protective tray 2, and the rearing box 3 all have octagonal cross-sections with rounded corners. Their cross-sections can also be circular, triangular, or other polygonal shapes. When the protective sidewall 21 is located above the protective tray 2, the protective tray 2 is in an upright position. The through holes 12 on the sidewall of the trap box 1 can both provide ventilation and allow fruit flies to pass through.
[0027] This utility model has two uses: one is for attracting fruit flies to lay eggs (e.g., Figure 1 (as shown), another method for collecting fruit fly larvae (such as...) Figure 2 (As shown). When attracting fruit flies to lay eggs, place the protective tray 2 on the ground and fill the protective tray 2 with water. The water will be blocked by the protective side wall 21. Then place the attraction box 1 on the upper surface of the protective tray 2 (no need for the breeding box 3 in the attraction state). Place the attractant (such as citrus, mango, bitter melon, or other fruits and vegetables or artificial attractants) on the top of the screen 11. The attracted fruit flies will fly in from the upper opening of the attraction box 1. The female fruit flies will lay eggs on the attractant. After collecting enough fruit fly eggs in the attractant, switch the device to the rearing state. Install the attractant box 1 at the upper opening of the rearing box 3, with the two connected internally. Pour out the water from the protective tray 2 and invert the protective tray 2 onto the upper opening of the attractant box 1. After the fruit fly eggs hatch and the larvae mature, most of the fruit fly larvae will crawl out of the attractant and fall from the screen 11 into the rearing box 3 below. A small number of fruit fly larvae will climb up the wall of the attractant box 1. At this time, the inverted protective tray 2 will prevent them from crawling out of the upper opening of the attractant box 1. These fruit fly larvae will eventually fall from the screen 11 into the rearing box 3 below. At this time, the fruit fly larvae in the rearing box 3 can be obtained. The bottom of the rearing box 3 is covered with culture sand 31. The culture sand 31 is moist and loose, which makes it easy for the fruit fly larvae to burrow into and pupate. After the fruit fly pupae emerge, the adult fruit flies can be obtained.
[0028] Preferably, the aperture of the sieve 11 is 2.5-4.5 mm; the aperture of the sieve 11 should be set for common fruit fly larvae, such as: oriental fruit fly, Mediterranean fruit fly, melon fruit fly, etc. Oriental fruit fly larvae: diameter of early instar larvae: 1.0-1.5 mm, diameter of mature larvae (third instar): 2.5-3.5 mm (maximum up to 4 mm); Mediterranean fruit fly larvae: diameter of mature larvae: 2.0-3.0 mm (maximum 3.5 mm); melon fruit fly larvae: diameter of mature larvae: 3.0-4.0 mm.
[0029] Preferably, the trap box 1, protective tray 2, and feeding box 3 are all made of polyethylene or ABS material. Besides injection molding, this device can also be manufactured using 3D printing. ABS material, a commonly used material for 3D printers, is suitable for the production of this device.
[0030] Preferably, the height of the protective sidewall 21 is less than the height of the screen 11 to the bottom of the trap box 1. The height of the screen 11 inside the trap box 1 should be higher than the height of the protective sidewall 21 to prevent water in the protective tray 2 from submerging the screen 11.
[0031] like Figure 4 As shown, a first connecting wall 13 extends from the bottom of the side wall of the trapping box 1, and a second connecting wall 32 extends from the top of the side wall of the rearing box 3. The first connecting wall 13 and the second connecting wall 32 are connected by an interference fit. Preferably, a through ventilation hole 33 is provided on the side wall of the rearing box 3. In this embodiment, the specific shapes of the first connecting wall 13 and the second connecting wall 32 are as follows. Figure 4 As shown, by setting the first connecting wall 13 and the second connecting wall 32, the trapping box 1 and the feeding box 3 can be easily installed and quickly disassembled, and the stability of the connection between the components can be improved.
[0032] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A device for attracting and rearing fruit flies, characterized in that, include: The trap box (1) is a hollow structure with openings at the top and bottom. A screen (11) is installed inside the trap box (1). Several through holes (12) are opened through the side wall of the trap box (1). The through holes (12) are located on the upper side of the screen (11). A protective tray (2) has a protective sidewall (21) formed around its outline on its side; during the trapping process, the trapping box (1) is placed on the upper surface of the protective tray (2); The rearing box (3) is a hollow structure with an open top. The rearing box (3) is installed at the bottom of the trapping box (1). The bottom of the rearing box (3) is covered with culture sand (31) for pupation. During rearing, the protective tray (2) is reversed and covered at the upper opening of the trapping box (1), and the rearing box (3) is snapped into the lower opening of the trapping box (1).
2. The fruit fly trapping and rearing integrated device as described in claim 1, characterized in that, The bottom of the side wall of the trapping box (1) is formed by a first connecting wall (13), and the top of the side wall of the feeding box (3) is formed by a second connecting wall (32). The first connecting wall (13) and the second connecting wall (32) are connected by an interference fit.
3. The fruit fly trapping and rearing integrated device as described in claim 2, characterized in that, The side wall of the feeding box (3) is provided with a through-hole (33).
4. The fruit fly trapping and rearing integrated device as described in claim 1, characterized in that, The aperture of the screen (11) is 2.5-4.5 mm.
5. The fruit fly trapping and rearing integrated device as described in claim 1, characterized in that, The trapping box (1), protective tray (2), and feeding box (3) are all made of polyethylene or ABS material.
6. The fruit fly trapping and rearing integrated device as described in claim 1, characterized in that, The height of the protective sidewall (21) is less than the height of the screen (11) to the bottom of the trap box (1).