Foldable mesh cage type ampullaria gigas trapping device

Abstract

The utility model discloses a foldable mesh cage type ampullaria gigas trapping device, and relates to the technical field of biological control. Comprising a folding net cage main body, a snail collecting cage arranged on the folding net cage main body and communicated with the interior of the folding net cage main body, a food calling bag arranged in the folding net cage main body in the length direction, a food calling agent contained in the food calling bag, a plurality of snail inlets formed in the folding net cage main body and guide assemblies arranged on the outer sides of the snail inlets. One end of the folding mesh cage body away from the conch collecting cage is closed; each pomacea canaliculata collecting cage is provided with a funnel-shaped inlet for collecting pomacea canaliculata and a closed net bag, and a phagostimulant is placed in the closed net bag; the portable folding chair is reasonable in design, has a foldable design, and is convenient to carry and store. The net cage structure effectively traps the ampullaria gigas and prevents the ampullaria gigas from escaping, and meanwhile a phagostimulant can be placed to attract the ampullaria gigas to enter the net cage. The device is suitable for rice fields and other aquatic environments, is easy to install and can be repeatedly used, and pollution to the environment is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the biological control technical field, more specifically to the technical field of foldable net cage type golden apple snail trapping device. BACKGROUND

[0002] Golden apple snail is a hard shell mollusk of the family Ampullariidae in the order Succineida. Golden apple snail is a dioecious species with large individuals and complete spiral shells. It was introduced to China in 1981 and is listed as one of the first invasive species in China. It is also known as the "apple snail" due to its large and flat first whorl, which resembles an apple. Consuming raw or incompletely cooked golden apple snails can lead to meningitis and encephalitis, causing symptoms such as headache, fever, and neck stiffness. In severe cases, it can cause dementia and even death. Therefore, it is important to thoroughly cook the snails before consumption. Golden apple snails have a wide diet, including both plants and animals, but they prefer fresh and juicy plants, especially aquatic vascular plants such as duckweed, water bamboo, lotus root, and rice. The irrigation inlet of a rice field is the main channel for water to enter the field, and golden apple snails often enter the field with the water, causing damage to the rice seedlings. Golden apple snails are a major pest of rice and other crops, posing a serious threat to food security and ecological safety. Existing patents have disclosed the following technologies:

[0003] A device for trapping golden apple snails in rice fields is disclosed in patent CN208080423U. The device includes an attraction channel, an attraction net chamber, and an attraction barrel. The attraction channel includes an entrance channel and a buffer net slot. The entrance channel is open at both ends, with one end open outward and the other end open to the buffer net slot. The outward opening is provided with a crawling board extending inward. The crawling board forms an angle of 15-22.5° with the bottom surface of the entrance channel. The buffer net slot is open at both ends, with one end open to the entrance channel and the other end open to the attraction net chamber. The upper part of the attraction net chamber is provided with an opening, and the lower part is connected to the upper opening of the attraction barrel. The remaining part is a closed net surface. The device has a simple structure and can effectively prevent the escape of golden apple snails while concentrating them in the attraction barrel. It can capture golden apple snails conveniently and effectively, providing an environmentally friendly physical control technology for golden apple snails.

[0004] Current comprehensive control measures involve chemical agents, which pose a risk of water pollution and ecological damage. The above-mentioned patent and commercially available physical trapping devices have the problems of bulky structure, inconvenient transportation, complex installation, and low snail capture efficiency, which cannot meet the actual operational needs of golden apple snails in multiple habitats. Therefore, there is an urgent need for a lightweight, portable, foldable, and high-efficiency snail trapping device to achieve efficient and environmentally friendly golden apple snail control. SUMMARY

[0005] The utility model discloses a foldable net cage type golden apple snail trapping device.

[0006] The utility model discloses in order to realize above -mentioned purpose specifically adopts following technical scheme:

[0007] The utility model provides a foldable net cage type golden apple snail trapping device, including folding net cage main part, set in the folding net cage main part one and with the folding net cage main part inside intercommunication's collection snail cage, along the length direction setting in the folding net cage main part inside's bait bag, install in the bait bag's bait, set up in the folding net cage main part's multiple snail inlet and set up in each snail inlet outside's guide component, and the folding net cage main part is away from the collection snail cage one end closed.

[0008] In one embodiment, each guide component includes at least two guide rods, each guide rod is installed at the corresponding snail inlet, and the free end of each guide rod extends to the bottom mud.

[0009] Specifically, the guide rod is arranged at the lower edge of the snail inlet and extends to the bottom mud, and is used for guiding the golden apple snail to move forward to the snail inlet. The golden apple snail guide rod is made of hard plastic, and the length is 17 cm. Two guide rods extend from the lower edge of each snail inlet.

[0010] In one embodiment, the snail inlet and the corresponding collection snail cage are unidirectionally communicated, the snail inlet is a funnel-shaped structure, is arranged inwardly, and a hard trumpet-shaped inverted horn is additionally arranged at the end of the snail inlet.

[0011] Specifically, the collection snail cage is connected with the folding net cage main body through the fixing rod, and the closed net bag is arranged in the collection snail cage, so that the golden apple snail can be conveniently and quickly collected.

[0012] In one embodiment, the size of the end of the snail inlet is 4cm*4cm, and the height of the snail inlet is 6-10cm.

[0013] In one embodiment, the folding net cage main body includes a plurality of folding units arranged continuously, and the snail inlets are arranged on both sides of each folding unit.

[0014] In one embodiment, the folding net cage main body includes a plurality of stainless steel frames arranged at intervals and an outer net cover sleeved outside all the stainless steel frames. The stainless steel frames are fixedly connected with the outer net cover, and one folding unit is formed between two stainless steel frames.

[0015] Specifically, the folding net cage main body is composed of a plurality of stainless steel frames and an outer net cover (nylon net), and the whole is formed as a foldable structure and forms a stable three-dimensional structure after being unfolded.

[0016] In one embodiment, the bait bag is hung in the center of the inside of the folded net cage body for containing the bait to lure the golden apple snail into the net cage.

[0017] In one embodiment, the folded net cage body comprises 8 rectangular stainless steel skeletons and a plurality of nylon mesh sheets, and the unfolded net cage body has a length of 120 cm, a width of 20 cm and a height of 15 cm, and the nylon mesh has a mesh diameter of 3 mm.

[0018] The bait bag is a long strip-shaped nylon mesh bag with a mesh diameter of 0.5 mm and a length of 1 m.

[0019] In one embodiment, the bait comprises, by mass, 250 parts of rice leaf powder, 350 parts of soybean powder, 250 parts of duckweed powder, 50 parts of snail shell powder, 25 parts of sodium ascorbate, 50 parts of carrageenan and 25 parts of agar. The bait can keep the granular shape in water without dispersion, and has a strong baiting effect on the golden apple snail, so that the golden apple snail actively enters the net cage to eat the bait.

[0020] In one embodiment, a guide net is additionally installed on the side of the folded net cage body, the guide net has a length of 100 cm and a height of 50 cm, is taut by plastic rods at both ends, and the lower end of the guide net is in contact with the side of the folded net cage body for guiding the golden apple snail to climb and collect the egg mass.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The utility model has reasonable design, is manufactured by light and corrosion-resistant materials, has foldable design, and is convenient to carry and store.

[0023] 2. The device has small volume and light weight after being folded, is convenient to carry and use: the net cage is made of corrosion-resistant light materials, can be folded and stored, is convenient to move and place in the paddy field and irrigation channel, and saves labor.

[0024] 3. The device has large internal space and large capture amount: the folded cage has large internal space, many snail inlet ports, and the snail inlet ports are inclined to contact the bottom mud, and the guide rod has a guiding effect, so that a large amount of golden apple snails can be captured, and the upper part of the cage body leaks out of the water surface to prevent the golden apple snails from dying of oxygen deficiency and producing odor.

[0025] 4. The device can trap apple snails and collect egg masses at the same time, preventing continuous damage. The device is provided with a guide net on the side to induce apple snails to climb and lay eggs. Since the area is large and connected to the side of the net cage, apple snails attracted by the attractant can lay eggs on the guide net, so the effect of inducing egg laying is obvious. Moreover, the guide net can be easily replaced and disposed of the collected egg masses.

[0026] 5. The use of the trapping device does not require the use of chemical agents, avoiding pollution of the water environment and interference with the rice field ecosystem. In practical application, the trapping cage plus attractant can significantly reduce the number of apple snails in the rice field, reducing the damage of apple snails to rice seedlings, and achieving efficient and environmentally friendly physical control. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0028] Figure 1 is a perspective view of the folding cage of the present application;

[0029] Figure 2 is a partial schematic view of Figure 1 ;

[0030] Figure 3 is a structural schematic view of the snail collection cage of the present application;

[0031] Figure 4 is a structural schematic view of the guide net and its fixing device of the present application;

[0032] The drawings show that: 1 is the main body of the folding net cage, 2 is the snail inlet, 3 is the guide rod, 4 is the bait bag, 5 is the attractant, 6 is the guide net, and 7 is the snail collection cage. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and technical effects of the present application clearer, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Example 1

[0038] like Figures 1-4 As shown, this embodiment provides a foldable net cage-type snail and its egg mass collection device, including a foldable cage body with a length of 80-120cm, a feeding bag 4 and a feeding agent 5, a snail collection cage 7, and a guide net 6. The foldable cage body can be connected to the snail collection cage 7 and the guide net 6 via a fixing rod. The feeding bag 4 and the feeding agent 5 are suspended at the center of the net cage by ropes.

[0039] The main body of the net cage combines a high-strength stainless steel frame with nylon mesh to form a robust structure. The cage is 80-120cm long, 20cm wide, and 15cm high, providing suitable space for the growth and activity of golden apple snails. The stainless steel frame ensures corrosion resistance and durability, making it suitable for long-term use in aquatic environments. The 15cm spacing between each frame element ensures the cage's stability while effectively filtering water flow and maintaining water circulation. The nylon mesh has a 3mm aperture, effectively preventing the golden apple snails from escaping. For convenient transportation and storage, the cage features a foldable design, reducing its space footprint when folded and quickly unfolding into a stable three-dimensional structure.

[0040] The hard plastic material is used to make the guide rod 3 of the apple snail, and the length of the guide rod 3 is 17 cm. The guide rod 3 extends from the lower edge of the snail inlet 2 and is in contact with the bottom mud, which can effectively guide the apple snail to move towards the snail inlet 2. Two guide rods 3 extend from the lower edge of each snail inlet 2 to enhance the guiding effect. The arrangement of the guide rod 3 can ensure that the apple snail enters the net cage smoothly and reduce the situation that the apple snail moves in the opposite direction due to external interference.

[0041] The folding cage body is provided with a bait bag 4, which is a long strip nylon mesh bag with a pore size of 0.5 mm and a length of 100 cm. The bait bag 4 is hung at the center position of the net cage and is used to hold the bait 5. The configuration of the bait bag 4 and the bait 5 can effectively attract the apple snail into the net cage. The bait 5 includes the following components by mass: rice leaf powder 250 parts, soybean flour 350 parts, duckweed powder 250 parts, snail shell powder 50 parts, sodium ascorbate 25 parts, carrageenan 50 parts and agar 25 parts. The bait can maintain the granular shape in water without dispersion, and has a strong baiting effect on the apple snail, so that the apple snail actively enters the net cage to eat the bait. The bait 5 will not pollute the environment and meet the requirements of ecological protection.

[0042] One end of the folding cage body is closed by nylon net ligation, and the other end is connected with the snail collecting cage 7. The snail collecting cage 7 is designed the same as the folding cage body, and both adopt a stainless steel framework and a funnel-shaped inlet, and are provided with a closed mesh bag inside. The bait 5 placed in the snail collecting cage 7 can make the apple snail gather in the snail collecting cage 7 after entering the net cage. The snail collecting cage 7 and the net cage body are connected by a fixing rod, which ensures that the two are firmly connected and easy to disassemble. When collecting the apple snail, the snail collecting cage 7 is only needed to be taken down and emptied, without the need to operate the folding cage body again, which greatly improves the operation efficiency. The folding cage body is checked at intervals, and the captured apple snail is removed and the bait is replenished.

[0043] In order to facilitate the apple snail to lay eggs, a nylon guide net 6 with a length of 100 cm and a height of 50 cm is installed on the side of the net cage. The guide net 6 is tightened by a plastic rod, and the lower end of the guide net 6 is in contact with the side edge of the folding net cage, which can effectively guide the apple snail to crawl and complete the egg laying on the guide net 6. The arrangement of the guide net 6 increases the collection effect of the egg mass of the apple snail, and further reduces the number of the apple snail population. The guide net 6 can be disassembled, which is convenient for cleaning and processing the collected egg mass.

[0044] The technical scheme of the utility model will be further described below through specific embodiments, but it is not limited to the utility model.

[0045] Working principle:

[0046] When the apple snails enter the trapping area, the baits 5 attract them to move inside the net cage. The apple snails enter the net cage through the funnel-shaped snail entry ports 2 or guide rods 3. By arranging multiple snail entry ports 2 and guide rods 3, the apple snails can enter the net cage in large quantities within a short time. Once the apple snails enter the net cage, they will eventually gather in the snail collection cage 7 due to the attraction of the baits 5 in the snail collection cage 7. The apple snails in the snail collection cage 7 are enclosed in the net pockets and can be easily transferred to a designated area or treated. The snail collection cage 7 can be quickly removed without the need to move the entire net cage.

[0047] The apple snail trapping device of the present embodiment does not use any chemical pesticides and relies entirely on physical methods to capture apple snails, thereby avoiding pollution of the water environment and the surrounding ecosystem. Since the baits 5 are natural and environmentally friendly, the device meets the requirements of ecological protection and sustainable agricultural development, and can effectively reduce the harm of apple snails.

[0048] Practical operation:

[0049] In practical applications, the size of the net cage, the number of snail entry ports 2, and the amount of bait 5 can be adjusted according to different water environments and the activity patterns of apple snails. For larger rice fields or water areas, the number and size of the net cages can be increased to achieve higher trapping efficiency. In areas with a large number of apple snails, the amount of bait 5 can be appropriately increased to improve the trapping effect. By adjusting and optimizing the configuration of the trapping device, apple snails can be efficiently captured in different water environments, minimizing the harm of apple snails to aquatic crops.

[0050] Example 2

[0051] Example 1 discloses a foldable net cage type apple snail and egg mass trapping device, which uses nylon net cages with different pore sizes to conduct indoor trapping tests on apple snails.

[0052] Test materials: 1mm pore size nylon net, 3mm pore size nylon net, 10mm pore size nylon net, Pomacea canaliculata (large snails: diameter ≥20mm, medium snails: diameter ≥10mm, young snails: diameter ≥3mm).

[0053] Test method: In a glass tank with a length, width, and height of 2m x 1m x 1m, place nylon net cages with three different pore sizes and baits, with a water level height of 10cm. Simultaneously, place 50 large snails, 50 medium snails, and 50 young snails. Set up a control group without adding baits, with 3 replicates for each treatment.

[0054] Record the number of apple snails in the snail collection cage and calculate the trapping rate. The calculation results are shown in Table 1.

[0055] Table 1 The trapping rate of different aperture nylon net cages on golden apple snails in indoor test

[0056] Mesh aperture Test Example Test Example Attractiveness (%) Control Group Control Group Attractiveness (%) 1 mm Test Example 1 46±5.48 Control Group 1 35±5.71 3 mm Test Example 2 68±8.37 Control Group 2 44.58±8.72 10 mm Test Example 3 28±10.04 Control Group 3 17.83±13.58

[0057] The experiment shows that the net cage type golden apple snail trapping device disclosed in test example 1 to test example 3 can effectively trap golden apple snails, and the effect of trapping golden apple snails after adding the food attractant is significantly improved compared with a single net cage.

[0058] Example 3

[0059] The foldable net cage type golden apple snail and egg mass trapping device disclosed in example 1 is used for field trapping test of golden apple snails with different aperture nylon net cages.

[0060] Test materials: 1mm aperture nylon net, 3mm aperture nylon net, 10mm aperture nylon net.

[0061] Test method: Select a section of rice field irrigation canal and place three kinds of aperture nylon net cages and food attractants,

[0062] In addition, a treatment without adding food attractant is set as a control group, and 3 repetitions are set for each treatment.

[0063] Record the weight of golden apple snails in the snail cage, and the calculation results are shown in table 2.

[0064] Table 2 The trapping rate of different aperture nylon net cages on golden apple snails in field test

[0065]

[0066]

[0067] The experiment shows that the net cage type golden apple snail trapping device disclosed in test example 1 to test example 3 can effectively trap golden apple snails in the field water environment, and the amount of trapping golden apple snails after adding the food attractant is significantly improved compared with a single net cage.

Claims

1. A foldable net cage type golden apple snail trapping device, characterized in that, The device comprises a folding net cage body (1), a collection cage (7) arranged on one side of the folding net cage body (1) and communicating with the inside of the folding net cage body (1), a bait bag (4) arranged in the folding net cage body (1) along the length direction, a bait (5) contained in the bait bag (4), a plurality of snail inlet ports (2) arranged on the folding net cage body (1), and a guide assembly arranged outside each snail inlet port (2). The folding net cage body (1) is closed at the end away from the collection cage (7). Each collection cage (7) has a funnel-shaped inlet for collecting golden apple snails and a closed net bag, and the bait (5) is placed in the closed net bag.

2. The foldable net cage type golden apple snail trapping device according to claim 1, characterized in that, Each guide assembly comprises at least two guide rods (3), each guide rod (3) is installed at the corresponding snail inlet port (2), and the free end of each guide rod (3) extends to the bottom mud.

3. The foldable net cage type golden apple snail trapping device according to claim 1, characterized in that, The snail inlet port (2) is unidirectionally communicated with the corresponding collection cage (7), the snail inlet port (2) is in a funnel-shaped structure, arranged inwardly, and a hard trumpet-shaped inverted tassel is arranged at the end thereof.

4. The foldable net cage type golden apple snail trapping device according to claim 1, characterized in that, The bait (5) comprises the following components by mass: rice leaf powder 250 parts, soybean flour 350 parts, duckweed powder 250 parts, snail shell powder 50 parts, sodium ascorbate 25 parts, carrageenan 50 parts, and agar 25 parts.

5. The foldable net cage type golden apple snail trapping device according to claim 1, characterized in that, The folding net cage body (1) comprises a plurality of folding units arranged continuously, and each folding unit is provided with snail inlet ports (2) on both sides.

6. A foldable net cage type golden apple snail trapping device according to claim 5, characterized in that, The folding net cage body (1) comprises a plurality of stainless steel frames arranged at intervals and an outer net cover sleeved outside all the stainless steel frames, each stainless steel frame is fixedly connected with the outer net cover, and two stainless steel frames form a folding unit.

7. The foldable net cage type golden apple snail trapping device according to claim 1, characterized in that, The bait bag (4) is hung at the central position inside the folding net cage body (1) and is used for containing the bait (5) to attract the golden apple snails into the net cage.

8. The foldable net cage type golden apple snail trapping device according to claim 6, characterized in that, The folding net cage body (1) comprises eight rectangular stainless steel frames and a plurality of nylon mesh pieces, and when the folding net cage body (1) is unfolded, the length, width and height thereof are 120 cm, 20 cm and 15 cm respectively, and the mesh diameter of the nylon mesh is 3 mm.

9. The foldable net cage type golden apple snail trapping device according to claim 8, characterized in that, The folding net cage body (1) is additionally provided with a guide net (6) on the side surface, the length of the guide net (6) is 100 cm, the height thereof is 50 cm, both ends are tightened through plastic rods, the lower end of the guide net (6) is in contact with the side edge of the folding net cage body (1), and the guide net (6) is used for guiding the golden apple snails to climb and collecting the egg masses.

10. The foldable net cage type golden apple snail trapping device according to claim 8, characterized in that, The bait bag (4) is a long strip-shaped nylon mesh bag, the mesh aperture of the bag is 0.5 mm, the length of the bag is 1 m, the size of the end of the snail inlet port (2) is 4 cm*4 cm, and the snail inlet port (2) is located at the side surface of the folding net cage body (1) at a height of 6-10 cm.

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