Rapid collection device for aphidoletes aphidimyza larvae

Abstract

The utility model discloses a rapid collecting device for aphidoletes aphidimyza larvae, and belongs to the technical field of insect collecting devices. Comprising a barrel with an opening in the upper end, a gauze element is placed in the barrel, a gauze element limiting device is arranged on the lower portion in the barrel, a water outlet is formed in the position, below the gauze element limiting device, of the barrel, and a lifting rod is vertically arranged on the gauze element. The aphidoletes aphidimyza collecting device is provided with the liftable gauze element, a large number of aphidoletes aphidimyza can be rapidly collected in a short time, operation is easy, convenient and rapid, and collecting efficiency is remarkably improved. By means of the design of the lifting rod, the gauze element with aphidoletes aphidimyza can be directly and integrally lifted out, damage to aphidoletes aphidimyza caused by forcibly taking out the aphidoletes aphidimyza from adhesive blades through a writing brush in a traditional method is avoided, and the integrity of samples is ensured. The gauze element with good water permeability is adopted, so that insects can be quickly collected, excessive water can be drained in a short time, and normal vital activities of aphidoletes aphidimyza are ensured.

Description

Technical Field

[0001] This utility model relates to a rapid collection device for aphid-eating gall midge larvae, belonging to the technical field of insect collection devices. Background Technology

[0002] The aphid-eating gall midge (Aphidoletes aphidimyza) belongs to the family Cecidomyiidae in the order Diptera. Its larvae prey on over 80 species of aphids, making them an important natural enemy resource for aphid control. The larvae's lifespan is 4–6 days, and they are generally 0.5–3 mm in size, appearing orange-red and translucent. Their bodies are covered with a hydrophobic lipid layer, allowing for direct gas exchange through the body wall.

[0003] Traditional methods for collecting aphid gall midge larvae primarily rely on manual separation using a paintbrush, where the gall midge is transferred from the host plant through direct contact between the brush tip and the larvae. However, this method has significant limitations in practical application:

[0004] 1. Because the sticky substance secreted by aphid gall midges can adhere to the cuticle of leaves, it is easy to damage the insects during the manual separation process if the force is not controlled properly.

[0005] 2. When the larvae are hidden among the leaves, they are not easy to observe and find. It is necessary to manually pick open the leaves, which is time-consuming and laborious, resulting in low collection efficiency.

[0006] 3. In experiments requiring starvation treatment, the traditional manual operation of obtaining insect samples one by one results in significant differences in the time required, which directly affects the synchronicity of insect metabolism within the experimental group and consequently the accuracy of the experimental results. Summary of the Invention

[0007] The purpose of this invention is to provide a rapid collection device for aphid-eating gall midge larvae. This device can achieve rapid collection of aphid-eating gall midge larvae.

[0008] The technical solution of this utility model is as follows: A rapid collection device for aphid-eating gall midge larvae includes a cylinder with an open top, a mesh screen placed inside the cylinder, a mesh screen limiting device located at the bottom inside the cylinder, a drain outlet located on the cylinder below the mesh screen limiting device, and a lifting rod vertically installed on the mesh screen.

[0009] In the aforementioned rapid collection device for aphid-eating gall midge larvae, the edge of the mesh is inserted into an annular plastic pressure plate, and the mesh limiting device includes multiple triangular pyramidal locking blocks evenly distributed on the inner wall of the cylinder, and multiple locking slots are provided on the edge of the annular plastic pressure plate.

[0010] In the aforementioned rapid collection device for aphid-eating gall midge larvae, a handle is provided at the top of the lifting rod.

[0011] In the aforementioned rapid collection device for aphid-eating gall midge larvae, the mesh and the lifting rod are detachably connected, a connecting block is provided on the mesh, and the bottom of the lifting rod is threadedly connected to the connecting block.

[0012] The beneficial effects of this invention are as follows: Compared with traditional manual collection methods, the device of this invention achieves multi-dimensional technological breakthroughs and has the following advantages:

[0013] 1. High efficiency: The device is equipped with a liftable mesh, which can quickly collect a large number of aphid-eating gall midges in a short time. It is easy and quick to operate, and significantly improves the collection efficiency.

[0014] 2. Integrity: The lifting rod design allows the entire mesh containing aphid-eating gall midges to be lifted directly, avoiding the damage to the insects caused by forcibly removing them from sticky leaves with a brush in traditional methods, thus ensuring the integrity of the sample.

[0015] 3. Rationality: The use of highly permeable mesh not only allows for the rapid collection of insects but also enables the drainage of excess water in a short time, ensuring the normal life activities of aphid-eating eels.

[0016] 4. Practicality: The device adopts a detachable design, which facilitates timely replacement and cleaning of the mesh. The detachable structure of the lifting rod also helps to further transfer and cultivate aphid-eating gall midges, improving the resource utilization rate and reusability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the structure of the mesh.

[0019] Reference numerals: 1-cylinder, 2-mesh, 3-drain outlet, 4-lifting rod, 5-ring plastic pressure plate, 6-triangular cone-shaped locking block, 7-barrel, 8-handle, 9-connecting block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] An embodiment of this utility model: A rapid collection device for aphid-eating gall midge larvae includes a cylinder 1 with an open top, a mesh 2 placed inside the cylinder 1, a mesh limiting device provided at the lower part of the cylinder 1, a drain outlet 3 provided on the cylinder 1 below the mesh limiting device, and a lifting rod 4 vertically provided on the mesh 2.

[0022] The edge of the mesh 2 is engaged in the annular plastic pressure plate 5, which enhances the structural strength of the mesh 2 and prevents it from easily deforming. The mesh limiting device includes multiple triangular pyramidal locking blocks 6 evenly distributed on the inner wall of the cylinder 1. Multiple locking slots 7 are provided on the edge of the annular plastic pressure plate 5. The number of locking slots 7 is equal to the number of triangular pyramidal locking blocks 6, and their positions correspond to each other. After the mesh 2 is placed into the cylinder 1, the lifting rod 4 is held and the mesh 2 is rotated so that the locking slots 7 correspond to the positions of the triangular pyramidal locking blocks 6. Then the mesh 2 is lowered. Since the triangular pyramidal locking blocks 6 have a structure that is smaller at the top and larger at the bottom, their bottom size is larger than the size of the locking slots 7. Therefore, the bottom of the annular plastic pressure plate 5 can be supported by the triangular pyramidal locking blocks 6, thereby achieving the limiting and fixing of the mesh 2.

[0023] The top of the lifting rod 4 is provided with a handle 8, which makes it easy to lift the lifting rod 4 upward.

[0024] The mesh 2 and the lifting rod 4 are detachably connected. For example, a connecting block 9 with a threaded countersunk hole is provided on the mesh 2, and the bottom of the lifting rod 4 is provided with an external thread. The lifting rod 4 and the mesh 2 can be fixedly connected by screwing the lifting rod 4 into the threaded countersunk hole of the connecting block 9. When it is necessary to separate the mesh 2 and the lifting rod 4, quick disassembly can also be achieved.

[0025] The larvae of the aphid gall midge are covered with a hydrophobic lipid layer, which allows them to exchange gases directly through their body walls. When the larvae are immersed in water for less than 30 minutes, their survival rate is higher than 95%, and they can regain their predatory ability in a short time. Therefore, the larvae can be collected by immersing them in water. The device of this invention is designed based on the above principle.

[0026] In this invention, the main body (cylinder 1) is a cylindrical plastic bucket with a diameter of 28cm and a height of 26cm. A circular drain outlet 3 with a radius of 0.5cm is opened 1cm above the bottom of the cylinder 1, and a matching plug is provided. Opening the plug allows excess water to drain quickly. Inside the cylinder 1, 5cm above the bottom, a detachable, fine mesh 2 is secured. The mesh 2 has very small openings, allowing only water and tiny impurities to pass through, effectively trapping aphid-eating insect larvae. The edge of the mesh 2 is fitted into a ring-shaped plastic pressure plate 5, which has a locking mechanism 7 on its edge to easily secure the mesh 2. A detachable lifting rod 4 is connected to the center of the mesh 2. Lifting the handle 8 allows the entire mesh 2 to be removed, and rotating the lifting rod 4 allows the mesh 2 to be removed individually.

[0027] In use, fill the cylinder 1 with clean water until it is about four-fifths full. Immerse the host plant with aphid gall midge larvae in the water, gently shaking the plant to encourage the larvae to detach from the leaves. Once a sufficient number of aphid gall midges are observed in the water, open the drain at the bottom 3 to allow the water to drain out naturally. After the water has drained, hold the handle 8 and slowly lift the mesh screen 2. The aphid gall midges will be left on the surface of the mesh screen 2. By rotating the lifting rod 4, the mesh screen 2 can be removed separately for direct observation or transfer for cultivation.

Claims

1. A rapid collection device for aphid-eating gall midge larvae, characterized in that: It includes a cylindrical body (1) with an open top, a mesh (2) placed inside the cylindrical body (1), a mesh limiting device is provided at the bottom inside the cylindrical body (1), a drain outlet (3) is provided on the cylindrical body (1) below the mesh limiting device, and a lifting rod (4) is vertically provided on the mesh (2).

2. The rapid collection device for aphid-eating gall midge larvae according to claim 1, characterized in that: The edge of the mesh (2) is inserted into the annular plastic pressure plate (5). The mesh limiting device includes a plurality of triangular cone-shaped locking blocks (6) evenly distributed on the inner wall of the cylinder (1). A plurality of locking slots (7) are provided on the edge of the annular plastic pressure plate (5).

3. The rapid collection device for aphid-eating gall midge larvae according to claim 1, characterized in that: The top of the lifting rod (4) is provided with a handle (8).

4. The rapid collection device for aphid-eating gall midge larvae according to claim 1, characterized in that: The mesh (2) and the lifting rod (4) are detachably connected. A connecting block (9) is provided on the mesh (2), and the bottom of the lifting rod (4) is threadedly connected to the connecting block (9).

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