Trichogramma field release device

Abstract

The utility model belongs to the technical field of biological control, and particularly relates to a trichogramma field release device which comprises a device ball body, the device ball body comprises a first release cavity and a second release cavity, and the second release cavity is connected with the first release cavity through a fastener; a plurality of release openings are formed in the surfaces of the first release cavity and the second release cavity; opening and closing assemblies are arranged on the first release cavity and the second release cavity, a first fixing rod is arranged on the first release cavity, a shielding assembly is arranged on the first fixing rod, and a hanging assembly is arranged above the shielding assembly; according to the device, different types of trichogramma can be placed through the first release cavity and the second release cavity, the biological prevention and control flexibility and prevention and control efficiency are improved, the shielding assembly can effectively prevent direct sunlight and rain wash, a more suitable living environment is provided, the survival rate of the trichogramma is increased, the hanging assembly can enable the device to be stably hung on plants, and the device is convenient to use. The hanging height and position can be adjusted, and the accuracy and efficiency of biological prevention and control are improved.

Description

Technical Field

[0001] This utility model belongs to the field of biological control technology, specifically relating to a field release device for Trichogramma wasps. Background Technology

[0002] Trichogramma (scientific name: *Trichogramma rubescens*) is a special type of egg parasitic wasp that can parasitize the eggs of various lepidopteran pests, such as the corn borer (*Ostrini afurnacalis*), cotton bollworm (*Helicoverpa armigera*), diamondback moth (*Plutella xylostella*), beet armyworm (*Spodoptera exigua Hübner*), fall armyworm (*Spodoptera frugiperda*), and cotton bollworm (*Spodoptera litura*). As a natural enemy insect with great application potential, Trichogramma plays a crucial role in current integrated pest management in agriculture and is also the most widely used and commercialized biological control tool on the market. With increasing public concern about food safety, the importance of natural enemy insects in agricultural pest control is becoming increasingly prominent, especially Trichogramma, which has become one of the key means of controlling lepidopteran pests on open-field crops. However, with the transformation of agricultural farming methods, the application areas of natural enemy insects have expanded, and their effectiveness and cost have become the most pressing issues.

[0003] Currently, there are two main ways to release Trichogramma wasps in the field:

[0004] (1) Egg-type ball release: After the Trichogramma parasitic eggs have developed to a certain stage, they are glued evenly onto paper of a certain size to make Trichogramma parasitic egg cards, and a certain number of egg cards are placed in the release ball. When releasing the bees, the release ball can be thrown into the field. After the Trichogramma emerges, it can fly out from the exit, thereby achieving the effect of destroying the eggs.

[0005] (2) Scattered release of wasps: Using a specially designed wasp release device or a small box or other container with small holes, a certain number of parasitic eggs are placed in the container and then hung upside down on the plant at the release point. After the Trichogramma wasps emerge, they can fly out to find the eggs of lepidopteran pests.

[0006] However, both methods have some drawbacks. For example, while releasing the wasps in a ball-like manner is relatively simple, the eggs may be eaten by ants when they fall to the ground. Releasing the wasps in loose pellets is more complex, has higher control costs, and is less effective at protecting against wind and rain. It is also more dependent on weather conditions after release. Furthermore, in practice, the release of the wasps may not be uniform, affecting the control effect.

[0007] In addition, traditional Trichogramma releasers can only release one type of Trichogramma at a time, and direct sunlight and rain can affect the release quantity, which also affects the emergence rate of parasitic eggs on the egg card. Utility Model Content

[0008] To address the aforementioned shortcomings of existing technologies, this utility model provides a field release device for Trichogramma wasps, which solves the problems of traditional releasers being difficult to fix, only allowing the release of one type of Trichogramma wasp, and the release quantity being affected by direct sunlight and rain.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A device for adding and releasing Trichogramma wasps is provided, comprising a device sphere, the device sphere including a first release chamber and a second release chamber, the second release chamber being connected to the first release chamber by fasteners; and a plurality of release ports are provided on the surfaces of both the first and second release chambers.

[0011] Both the first and second release chambers are equipped with opening and closing components. The first release chamber is equipped with a first fixing rod, and the first fixing rod is equipped with a blocking component. Above the blocking component is a suspension component. The suspension component includes a suspension bar, with side rails on both sides of the suspension bar and a wedge tooth area between the side rails. A fixing bar is installed in the wedge tooth area. A lock head is installed in the middle of the suspension bar, with a lock slot inside the lock head and a lock tongue inside the lock slot. The lock tongue matches the fixing bar.

[0012] The beneficial effects of adopting the above technical solution are as follows: The opening and closing components on the first and second release chambers allow for the individual opening of both chambers, facilitating the placement of egg cards within them. The first and second release chambers can be used to store different types of Trichogramma wasps. Fasteners connect the first and second release chambers, allowing them to be fixedly connected into a single sphere, facilitating installation and disassembly. Furthermore, the suspension component on the first release chamber allows the device sphere to be stably suspended from field plants. The locking head and latch in the suspension component securely fix the sphere to the plant, and the suspension height can be adjusted by adjusting the fixed position of the suspension strip, improving the accuracy and efficiency of biological control. Simultaneously, the shading component provides shade from sunlight and rain during use, offering a better living environment for the Trichogramma wasps and increasing their emergence rate.

[0013] This field release device for Trichogramma wasps can store different types of Trichogramma wasps through the combination of a first release chamber and a second release chamber, which improves the flexibility of biological control. The suspension component allows the device to be stably suspended on field plants and is easy to install and disassemble. At the same time, the shading component can effectively prevent direct sunlight and rainwater from affecting the survival of Trichogramma wasps, thus effectively improving the emergence rate of Trichogramma wasps.

[0014] Furthermore, the fixing strip is V-shaped or herringbone-shaped.

[0015] The beneficial effects of adopting the above technical solution are as follows: by setting the fixing strip to a V-shape or herringbone shape, the locking area between the fixing strip and the locking tongue can be increased, thereby improving the stability and firmness during suspension. At the same time, it can also better distribute pressure, improve the load-bearing capacity of the suspension assembly, and extend the service life of the suspension assembly.

[0016] Furthermore, the fastener includes a first fixing block and a second fixing block. The first fixing block is disposed on both sides of the first fixing ring, and the first fixing ring is disposed below the first release cavity. The second fixing block is disposed on both sides of the second fixing ring, and the second fixing ring is disposed above the second release cavity. The first fixing block and the second fixing block are provided with fixing holes, and fixing pins are disposed in the fixing holes.

[0017] The beneficial effects of adopting the above technical solution are as follows: the first fixing ring and the second fixing ring can stably fix the first fixing block and the second fixing block to the outside of the housing of the first release cavity and the second release cavity. The first fixing block and the second fixing block can be used in conjunction with the fixing pin to firmly connect the first release cavity and the second release cavity, ensuring the connection stability between the first release cavity and the second release cavity. Moreover, the fastener structure is simple and easy to install and disassemble.

[0018] Furthermore, the shielding assembly includes a second fixing rod and a shielding cover, with the shielding cover disposed on both sides of the second fixing rod; a first fixing groove is provided at the lower end of the second fixing rod, and a second fixing groove is provided at the upper end of the second fixing rod.

[0019] Furthermore, a first threaded rod is provided at the upper end of the first fixing rod, and the first threaded rod matches the first fixing groove; a second threaded rod is provided at one end of the suspension bar, and the second threaded rod matches the second fixing groove.

[0020] The beneficial effects of adopting the above technical solution are as follows: the first fixing groove and the first threaded rod can be used to fix the shielding component above the device sphere, and the second fixing groove and the second connecting rod can be used to fix the suspension component above the shielding component. The second fixing rod serves as the support rod of the shielding component, which can ensure that the shielding cover can be stably installed on the first release chamber. The shielding cover can effectively block sunlight and rain, providing a better living environment for Trichogramma wasps, thereby improving the emergence rate of Trichogramma wasps.

[0021] Furthermore, the opening and closing assembly includes a cavity cover and an opening and closing piece disposed below the cavity cover. The cavity cover and the opening and closing piece are connected by a third fixing rod, which is disposed in the middle of the cavity cover and the opening and closing piece.

[0022] The beneficial effects of adopting the above technical solution are as follows: the third fixing rod can be used to connect the cavity cover and the opening and closing plate. Through the cooperation of the cavity cover and the opening and closing plate, the first release cavity and the second release cavity can be closed and opened, which is convenient for placing the Trichogramma egg card when needed.

[0023] Furthermore, both the cavity cover and the opening / closing plate are semi-circular, and the outer ring of the cavity cover is provided with an adjustment channel. A push rod is provided inside the adjustment channel, and the push rod is connected to the opening / closing plate.

[0024] The beneficial effects of adopting the above technical solution are as follows: the adjustment channel provides the push rod with a space for movement, and the operator can control the opening and closing of the opening and closing plate by pushing the push rod, which is conducive to opening or closing the first release chamber and the second release chamber, and thus facilitates the placement of the egg card.

[0025] Furthermore, both the first and second release chambers are made of biodegradable resin materials.

[0026] The beneficial effects of adopting the above technical solution are as follows: by using the first and second release chambers made of biodegradable resin materials, the devices can decompose naturally after disposal, reducing environmental pollution and not affecting the growth and emergence of Trichogramma wasps, thus ensuring the effectiveness of biological control.

[0027] In summary, the beneficial effects of the field release device for Trichogramma wasps provided by this utility model are as follows:

[0028] (1) The field release device for Trichogramma can store different types of Trichogramma in the first release chamber and the second release chamber respectively, which improves the flexibility and effectiveness of biological control; and the fastener structure between the first release chamber and the second release chamber is simple and easy to install and disassemble.

[0029] (2) Both the first and second release chambers in the device are equipped with opening and closing components. The opening and closing plates and the chamber cover can be used together to facilitate the opening or closing of the release chambers and to facilitate the placement of egg cards as needed.

[0030] (3) The shielding component set above the sphere of the device can block sunlight and rain, providing a better living environment for Trichogramma wasps and avoiding the death of Trichogramma wasps or the reduction of the emergence rate due to environmental factors.

[0031] (4) The suspension component above the sphere of the device allows the device to be stably suspended on the plants in the field. It is not only easy to install and disassemble, but also allows the suspension height and position to be adjusted according to needs, which improves the accuracy and efficiency of biological control. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2This is a schematic diagram of the structure of the sphere in the device of this utility model;

[0034] Figure 3 This is a schematic diagram of the release cavity in this utility model;

[0035] Figure 4 This is a schematic diagram of the suspension assembly in this utility model;

[0036] Figure 5 This is a cross-sectional view of the suspension strip in this utility model;

[0037] Figure 6 This is a schematic diagram of the shielding component in this utility model;

[0038] Figure 7 This is a schematic diagram of the opening and closing component in this utility model;

[0039] The components include: 1. Device sphere; 2. First release chamber; 3. Second release chamber; 4. Fastener; 41. First fixing block; 42. First fixing ring; 43. Second fixing block; 44. Second fixing ring; 45. Fixing pin; 5. Release port; 6. Opening and closing assembly; 61. Cavity cover; 62. Opening and closing piece; 63. Third fixing rod; 64. Adjustment channel; 65. Push rod; 7. First fixing rod; 8. Covering assembly; 81. Second fixing rod; 82. Cover; 83. First fixing groove; 84. Second fixing groove; 85. First threaded rod; 86. Second threaded rod; 9. Suspension assembly; 91. Suspension bar; 92. Wedge tooth area; 93. Fixing bar; 94. Lock head; 95. Side rail; 96. Lock mouth; 97. Lock tongue. Detailed Implementation

[0040] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0041] like Figures 1 to 7As shown, the Trichogramma wasp field release device provided by this utility model includes a device sphere 1, which includes a first release chamber 2 and a second release chamber 3. The second release chamber 3 is connected to the first release chamber 2 by fasteners 4. Both the first release chamber 2 and the second release chamber 3 have several release ports 5 on their surfaces. This Trichogramma wasp field release device uses non-chemical methods to release pests, reducing environmental pollution and damage. The device sphere 1 has two release chambers, allowing for the simultaneous storage of different types of Trichogramma wasps. The fasteners 4 securely connect the two release chambers into a single sphere, facilitating installation and disassembly. After the egg cells in the release chambers successfully emerge, the Trichogramma wasps can be released from the release ports 5. This device can release multiple types of Trichogramma wasps simultaneously, effectively improving the efficiency and effectiveness of biological control while reducing control costs and environmental pollution.

[0042] like Figure 1 As shown, the fastener 4 includes a first fixing block 41 and a second fixing block 43. The first fixing block 41 is disposed on both sides of the first fixing ring 42, which is located below the first release cavity 2. The second fixing block 43 is disposed on both sides of the second fixing ring 44, which is located above the second release cavity 3. The first fixing block 41 and the second fixing block 43 are provided with fixing holes, and fixing pins 45 are disposed in the fixing holes. The first fixing ring 42 and the second fixing ring 44 can stably fix the first fixing block 41 and the second fixing block 43 to the outside of the housing of the first release cavity 2 and the second release cavity 3. The cooperation between the first fixing block 41 and the second fixing block 43 and the fixing pins 45 can securely connect the first release cavity 2 and the second release cavity 3, ensuring the connection stability between the first release cavity 2 and the second release cavity 3. The fastener 4 has a simple structure and is easy to install and disassemble.

[0043] In this embodiment of the invention, both the first release chamber 2 and the second release chamber 3 can be made of biodegradable resin materials such as polylactic acid and epoxy resin, so that the first release chamber 2 and the second release chamber 3 can decompose naturally after the device is discarded, reducing environmental pollution and not affecting the growth and emergence of Trichogramma wasps, thus ensuring the biological control effect; at the same time, the shell color of the first release chamber 2 and the second release chamber 3 can be set to black, which, based on the phototaxis of Trichogramma wasps, can facilitate the Trichogramma wasps to fly out of the release port 5.

[0044] like Figure 1 , Figure 3 and Figure 7As shown, both the first release chamber 2 and the second release chamber 3 are equipped with opening and closing components 6. Each component 6 includes a chamber cover 61 and an opening / closing piece 62 located below the cover 61. The cover 61 and the piece 62 are connected by a third fixing rod 63, which is positioned in the middle of the cover 61 and the piece 62. Both the cover 61 and the piece 62 are semi-circular. An adjustment channel 64 is provided on the outer ring of the cover 61, and a push rod 65 is installed within the adjustment channel 64. The push rod 65 is connected to the piece 62. The third fixing rod 63 connects the cover 61 and the piece 62. Through the cooperation of the cover 61 and the piece 62, the first release chamber 2 and the second release chamber 3 can be closed and opened. The adjustment channel 64 provides space for the push rod 65 to move, allowing the operator to control the opening and closing of the piece 62 by pushing the push rod 65, thus facilitating the opening or closing of the first release chamber 2 and the second release chamber 3 and enabling the placement of the egg card.

[0045] like Figure 1 , Figure 2 and Figure 6 As shown, a first fixing rod 7 is provided on the first release chamber 2, and a shielding component 8 is provided on the first fixing rod 7. The shielding component 8 includes a second fixing rod 81 and a shielding cover 82, with the shielding cover 82 disposed on both sides of the second fixing rod 81. A first fixing groove 83 is provided at the lower end of the second fixing rod 81, and a second fixing groove 84 is provided at the upper end of the second fixing rod 81. A first threaded rod 85 is provided at the upper end of the first fixing rod 7, and the first threaded rod 85 matches the first fixing groove 83. A second threaded rod 86 is provided at one end of the suspension bar, and the second threaded rod 86 matches the second fixing groove 84.

[0046] The shielding assembly 8 can be fixed above the device sphere 1 by the cooperation of the first fixing groove 83 and the first threaded rod 85. The suspension assembly 9 can be fixed above the shielding assembly 8 by the cooperation of the second fixing groove 84 and the second connecting rod. The second fixing rod 81 serves as the support rod of the shielding assembly 8, ensuring that the shielding cover 82 can be stably installed on the first release chamber 2. The shielding cover 82 can effectively block sunlight and rain, providing a better living environment for Trichogramma wasps and thus improving the emergence rate of Trichogramma wasps.

[0047] like Figure 1 , Figure 4 and Figure 5 As shown, a suspension assembly 9 is provided above the shielding assembly 8. The suspension assembly 9 includes a suspension bar 91, side rails 95 are provided on both sides of the suspension bar 91, a wedge tooth area 92 is provided between the side rails 95, and a fixing bar 93 is provided in the wedge tooth area 92. A lock head 94 is provided in the middle of the suspension bar 91, a lock opening 96 is provided inside the lock head 94, and a lock tongue 97 is provided inside the lock opening 96. The lock tongue 97 matches the fixing bar 93.

[0048] The suspension bar 91, as the main body of the suspension assembly 9, ensures the stability and load-bearing capacity of the entire suspension assembly 9. The wedge-tooth area 92 on the suspension bar 91 improves the connection stability with the locking head 94 and provides friction when fixing to field plants, enhancing the suspension's stability and preventing the device ball 1 from falling off due to environmental factors such as wind and rain. The locking tongue 97 provides a locking function, securing the device ball 1 firmly to the field plants through matching and locking with the fixing bar 93, preventing the device from falling off or moving. This not only facilitates installation but also allows for adjustment of the suspension height and position as needed, improving the accuracy and efficiency of biological control. Furthermore, the fixing bar 93 is V-shaped or herringbone-shaped. By setting the fixing bar 93 to a V-shape or herringbone shape, the locking area between the fixing bar 93 and the locking tongue 97 is increased, thereby improving the stability and stability of the suspension. It also better distributes pressure, increasing the load-bearing capacity of the suspension assembly 9 and extending its service life.

[0049] In summary, the field release device for Trichogramma wasps provided by this utility model has a simple structure, is easy to install and disassemble. By setting the first release chamber 2 and the second release chamber 3, different types of Trichogramma wasps can be released according to needs, which improves the flexibility and efficiency of biological control. At the same time, the shielding component 8 can effectively prevent direct sunlight and rain erosion, providing a more suitable living environment for Trichogramma wasps and improving their survival rate. In addition, the suspension component 9 can make the device stably suspended on the plants in the field, which not only facilitates installation and disassembly, but also allows the suspension height and position to be adjusted according to needs, improving the accuracy and efficiency of biological control.

Claims

1. A field release device for Trichogramma wasps, characterized in that: The device includes a sphere (1), which includes a first release chamber (2) and a second release chamber (3). The second release chamber (3) is connected to the first release chamber (2) by a fastener (4). The surfaces of the first release chamber (2) and the second release chamber (3) are provided with a plurality of release ports (5). Both the first release chamber (2) and the second release chamber (3) are provided with opening and closing components (6). The first release chamber (2) is provided with a first fixing rod (7). The first fixing rod (7) is provided with a blocking component (8). The blocking component (8) is provided with a suspension component (9). The suspension component (9) includes a suspension bar (91). The suspension bar (91) is provided with side rails (95) on both sides. The side rails (95) are provided with a wedge tooth area (92) between them. The wedge tooth area (92) is provided with a fixing bar (93). The suspension bar (91) is provided with a lock head (94) in the middle. The lock head (94) is provided with a lock mouth (96). The lock mouth (96) is provided with a lock tongue (97). The lock tongue (97) matches the fixing bar (93).

2. The field release device for Trichogramma wasps according to claim 1, characterized in that: The fixing strip (93) is V-shaped or herringbone-shaped.

3. The field release device for Trichogramma wasps according to claim 1, characterized in that: The fastener (4) includes a first fixing block (41) and a second fixing block (43). The first fixing block (41) is disposed on both sides of the first fixing ring (42), and the first fixing ring (42) is disposed below the first release cavity (2). The second fixing block (43) is disposed on both sides of the second fixing ring (44), and the second fixing ring (44) is disposed above the second release cavity (3). The first fixing block (41) and the second fixing block (43) are provided with fixing holes, and fixing pins (45) are provided in the fixing holes.

4. The field release device for Trichogramma wasps according to claim 1, characterized in that: The shielding assembly (8) includes a second fixing rod (81) and a shielding cover (82), the shielding cover (82) being disposed on both sides of the second fixing rod (81); the lower end of the second fixing rod (81) is provided with a first fixing groove (83), and the upper end of the second fixing rod (81) is provided with a second fixing groove (84).

5. The field release device for Trichogramma wasps according to claim 1, characterized in that: The first fixing rod (7) is provided with a first threaded rod (85) at its upper end, and the first threaded rod (85) matches the first fixing groove (83); the suspension bar (91) is provided with a second threaded rod (86) at one end, and the second threaded rod (86) matches the second fixing groove (84).

6. The field release device for Trichogramma wasps according to claim 1, characterized in that: The opening and closing assembly (6) includes a cavity cover (61) and an opening and closing piece (62) disposed below the cavity cover (61). The cavity cover (61) and the opening and closing piece (62) are connected by a third fixing rod (63), which is disposed in the middle of the cavity cover (61) and the opening and closing piece (62).

7. The field release device for Trichogramma wasps according to claim 6, characterized in that: The cavity cover (61) and the opening and closing piece (62) are both semi-circular. An adjustment channel (64) is provided on the outer ring of the cavity cover (61). A push rod (65) is provided in the adjustment channel (64). The push rod (65) is connected to the opening and closing piece (62).

8. The field release device for Trichogramma wasps according to claim 1, characterized in that: The materials of the first release chamber (2) and the second release chamber (3) are both biodegradable resin materials.

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