A convenient egg collection device for fruit flies
By using a convenient egg-collecting device to collect fruit fly eggs, the problems of strong rotten odor and inconsistent larval species in existing technologies have been solved, enabling rapid and convenient egg collection and batch management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHENGE BIOLOGICAL TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-04
AI Technical Summary
Existing technologies for indoor rearing of oriental fruit flies and melon flies have problems such as strong rotten odor, inconsistent larval species, and difficulty in collection, making it difficult to efficiently collect eggs.
A convenient egg collection device was designed, including an attractant container cup and an oviposition needle insertion cup, which are connected by threads. The attractant container cup is filled with fruit juice or fruit puree, and the oviposition needle insertion cup has a needle hole for attracting and collecting fruit fly eggs. The device is made of transparent hard plastic, and the needle hole is tilted at an angle of 30° to 60° to facilitate egg collection.
It enables quick and convenient collection of eggs from the citrus fruit fly and the melon fruit fly, avoiding the mixing of different species of larvae. It is suitable for field and indoor rearing, and is made of durable and portable materials. It supports collection by date and batch.
Smart Images
Figure CN224584011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of egg retrieval devices, specifically to a convenient egg retrieval device for fruit flies. Background Technology
[0002] The melon fruit fly (Fagopyrum spp.) is an animal belonging to the genus Fagopyrum in the family Tetranychidae. It is also known as the cucumber fruit fly or small melon fruit fly. Its main pests are cucurbitaceous plants, primarily cucumbers, zucchini, loofah, bitter melon, and pumpkin, among other fruits and vegetables. The adult fly lays its eggs by inserting its ovipositor into the skin of young melons. After hatching, the larvae bore into the melon and feed on it. Affected melons initially turn yellow in localized areas, then rot and become foul-smelling, causing significant fruit drop. Even if the melon doesn't rot, the puncture wounds will ooze resin, resulting in deformities, sunken areas, hardened skin, and a bitter taste, severely impacting both the quality and yield of the melon.
[0003] The oriental fruit fly and the melon fruit fly damage a large number of fruits and vegetables every year, significantly impacting my country's fruit and vegetable industry and making them key targets for many research institutions and pesticide companies. Currently, indoor rearing of these flies mostly involves collecting rotten fruits and vegetables damaged by these flies in the field, placing them under suitable cultivation conditions, and waiting for mature larvae to jump out from the rotten fruit and vegetables and pupate in sandy soil. The pupae and adults are then collected for indoor pesticide repellency experiments. However, this method of collecting rotten fruits and vegetables for rearing often presents problems such as a strong stench, the presence of other fly larvae within the rotten fruit and vegetables, difficulty in collecting larvae, and inconsistent larval development. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention proposes a convenient egg-collecting device for fruit flies. It features a simple structure, easy installation and use, and is suitable for quickly and conveniently collecting eggs of the oriental fruit fly and melon fruit fly in the field. It can also be used for indoor rearing of oriental fruit flies and melon fruit flies to easily collect egg masses and obtain larvae of uniform age.
[0005] To achieve the above technical solution, this utility model provides a convenient egg-collecting device for fruit flies, comprising: an attractant container cup and an oviposition needle insertion cup, wherein the attractant container cup and the oviposition needle insertion cup are connected by threads, the oviposition needle insertion cup is installed above the attractant container cup, and the surface of the oviposition needle insertion cup is uniformly provided with needle holes with a diameter of 0.1-1mm.
[0006] In the above technical solution, during actual operation, fruit juice or pulp favored by the oriental fruit fly and the melon fruit fly can be added to the attractant container, with the amount not exceeding the container's capacity. The attractant container is connected to the oviposition needle insertion cup via a screw thread and suspended on fruit trees or melon trellises in the field. The oriental fruit fly and the melon fruit fly are attracted by the scent of fruit juice or pulp and lay their eggs by inserting their oviposition needles into the holes in the insertion cup. The eggs fall into the attractant container. Since the attractant container and the oviposition needle insertion cup are connected by a screw thread, eggs from the oriental fruit fly and the melon fruit fly can be collected within 24 hours in summer and after 2-3 days in winter. The attractant container with eggs can then be removed, replaced with a new one, and the container can continue to be hung outdoors for further egg collection. The oviposition needle has evenly spaced holes of 0.1-1 mm in diameter on its surface. These holes are designed to accommodate only the oviposition needles of the citrus fruit fly and the melon fruit fly, thus preventing fruit flies from flying in and laying eggs, which would interfere with egg collection.
[0007] Preferably, the pinhole penetrates the wall of the ovipositor insertion cup, and the angle α of the pinhole is 30°–60° downwards along the horizontal direction. In actual experiments, it was found that the angle α of the pinhole cannot be too small; if α is too small, it will hinder the eggs from falling into the attractant container, and there is a risk of them slipping outwards if there is any shaking. The angle α of the pinhole also cannot be too large; if α is too large, it will hinder the insertion of the ovipositor during egg-laying by the oriental fruit fly and the melon fruit fly. Experiments have shown that when the angle α of the pinhole is 30°–60° downwards along the horizontal direction, it facilitates the insertion of the ovipositor and ensures that the eggs fall into the attractant container.
[0008] Preferably, both the attractant container and the oviposition needle insertion cup are made of transparent hard plastic. Transparent hard plastic is resistant to high temperature exposure, is not easily deformed or broken, and is resistant to rain erosion.
[0009] Preferably, a nylon suspension rope is installed at the top of the egg-laying needle insertion cup to facilitate the overall suspension of the egg retrieval device.
[0010] Preferably, the surfaces of the attractant container and the oviposition needle insertion cup are coated with orange-yellow, a color that also attracts the oriental fruit fly and the melon fruit fly.
[0011] The advantages of this utility model for a convenient egg-collecting device for fruit flies are as follows: The device has a simple and reasonable structure, is easy to assemble and use, and can quickly and conveniently collect eggs from both the citrus fruit fly (Bactrocera dorsalis) and the melon fruit fly (Bactrocera melonensis). The size of the oviposition hole limits the fruit fly's egg-laying, avoiding the phenomenon of collecting larvae of different fly species from rotten melons and fruits in the field. It has a wide range of applications; it can be hung on fruit trees and melon trellises in the field, and is also suitable for collecting eggs from citrus fruit flies raised in indoor insect cages. The attractant container and the oviposition needle insertion cup are easily connected and disassembled, allowing for easy replacement of the attractant container to collect eggs by date and batch. The entire device is lightweight and easy to carry and use; the material is resistant to high temperatures and sun exposure, and is not prone to discoloration or breakage. The overall orange-yellow color also has a certain attraction effect. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is an exploded three-dimensional structural diagram of the present invention.
[0014] Figure 3 This is a schematic diagram showing the angle α of the pinhole in this utility model.
[0015] In the picture: 1. Attractant container cup; 2. Egg-laying needle insertion cup; 3. Nylon suspension rope. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0017] Example 1: A convenient egg-collecting device for fruit flies.
[0018] Reference Figures 1 to 3As shown, a convenient egg-collecting device for fruit flies includes: an attractant container 1, an oviposition needle insertion cup 2, and a nylon suspension rope 3. The nylon suspension rope 3 is installed on top of the oviposition needle insertion cup 2 for easy overall suspension of the egg-collecting device. The attractant container 1 and the oviposition needle insertion cup 2 are connected by threads for easy disassembly and assembly. The oviposition needle insertion cup 2 is installed above the attractant container 1. The surface of the oviposition needle insertion cup 2 has evenly distributed pinholes with a diameter of 0.5 mm, penetrating the cup wall. The angle α of the pinholes is 45° downwards along the horizontal direction. In actual experiments, it was found that the angle α of the pinholes cannot be too small; if α is too small, it is not conducive to the eggs falling into the attractant container, and there is a risk of them slipping outwards if there is any shaking. The angle 'a' of the pinhole should not be too large, as this would hinder the insertion of the ovipositor during egg-laying by the oriental fruit fly and the melon fruit fly. Experiments have shown that when the angle 'a' of the pinhole is 45° downward tilted from the horizontal, it facilitates the insertion of the ovipositor while ensuring that the eggs fall into the attractant container, resulting in the best experimental results.
[0019] In this embodiment, both the attractant container 1 and the ovipositor insertion cup 2 are made of transparent hard plastic. Transparent hard plastic is resistant to high temperatures and direct sunlight, is not easily deformed or broken, and is resistant to rain erosion. The surfaces of the attractant container 1 and the ovipositor insertion cup 2 are coated with orange-yellow, and the nylon suspension rope 3 is also orange-yellow. This color has an attractive effect on both the oriental fruit fly and the melon fruit fly.
[0020] In this embodiment, during actual operation, fruit juice or pulp favored by the oriental fruit fly and the melon fruit fly can be added to the attractant container 1, with the amount not exceeding the capacity of the attractant container 1. The attractant container 1 is connected to the oviposition needle insertion cup 2 via a screw thread and suspended on fruit trees or melon trellises in the field via a nylon suspension rope 3. The oriental fruit fly and the melon fruit fly are attracted by the scent of fruit juice and pulp, and lay their eggs by inserting their oviposition needles into the needle holes provided on the oviposition needle insertion cup 2. The eggs fall into the attractant container 1. The attractant container 1 and the oviposition needle insertion cup 2 are connected by a screw thread. In summer, eggs of the oriental fruit fly and the melon fruit fly can be collected within 24 hours, while in winter, they can be collected after 2-3 days. At this point, the attractant container 1 containing eggs can be removed, replaced with a new attractant container 1, and the collection of eggs can continue outdoors. The surface of the oviposition needle insertion cup 2 is evenly perforated with needle holes of 0.5 mm in diameter, which can only accommodate the oviposition needles of the citrus fruit fly and the melon fruit fly, thus preventing fruit flies from flying in to lay eggs and interfering with the collection of eggs.
[0021] This convenient egg-collecting device for fruit flies features a simple and rational design, making it easy to assemble and use. It allows for the rapid and convenient collection of eggs from both the citrus fruit fly (Bactrocera dorsalis) and the melon fruit fly (Bactrocera melonensis). The size of the oviposition hole limits the fruit fly's egg-laying capacity, avoiding the problem of collecting larvae of different fly species from rotten fruit in the field. It has a wide range of applications, not only hanging on fruit trees and melon trellises in the field but also suitable for collecting eggs from Bactrocera dorsalis and Bactrocera melonensis when raising them in indoor insect cages. The attractant container 1 and the oviposition needle insertion cup 2 are easily connected and disassembled, allowing for easy replacement of the attractant container 1 to collect eggs by date and batch. The entire device is lightweight and easy to carry, and the material is resistant to high temperatures and sun exposure, preventing discoloration and breakage. The overall orange-yellow color also provides some attraction.
[0022] Example 2: A convenient egg-collecting device for fruit flies.
[0023] Reference Figures 1 to 3 As shown, a convenient egg-collecting device for fruit flies is provided. The surface of the egg-laying needle insertion cup 2 is uniformly provided with needle holes of 0.1 mm in diameter. The needle holes penetrate the cup wall of the egg-laying needle insertion cup 2, and the angle α of the needle holes is 60° downward along the horizontal direction. The remaining technical features are the same as those in Embodiment 1.
[0024] Example 3: A convenient egg-collecting device for fruit flies.
[0025] Reference Figures 1 to 3 As shown, a convenient egg-collecting device for fruit flies is provided. The surface of the egg-laying needle insertion cup 2 is uniformly provided with needle holes of 1 mm in diameter. The needle holes penetrate the cup wall of the egg-laying needle insertion cup 2, and the angle α of the needle holes is 30° downward tilted along the horizontal direction. The remaining technical features are the same as those in Embodiment 1.
[0026] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A convenient egg collection device for fruit flies, characterized by include: The attractant container and the oviposition needle insertion cup are connected by threads. The oviposition needle insertion cup is installed above the attractant container. The surface of the oviposition needle insertion cup is uniformly provided with needle holes with a diameter of 0.1-1mm.
2. The convenient egg collection device for Drosophila melanogaster of claim 1, wherein: The needle hole penetrates the wall of the cup into which the oviposition needle is inserted, and the angle α of the needle hole is 30° to 60° downward along the horizontal direction.
3. The convenient egg collection device for Drosophila melanogaster of claim 1, wherein: Both the attractant container and the oviposition needle insertion cup are made of transparent hard plastic.
4. The convenient egg collection device for Drosophila of claim 1, wherein: A nylon suspension rope is installed at the top of the spawning needle insertion cup.
5. The convenient egg collection device for Drosophila of claim 1, wherein: The surfaces of the attractant container and the oviposition needle insertion cup are coated with orange-yellow.