A field artificial carrier rearing device for trichogramma

Abstract

This utility model discloses an artificial carrier conservation device for Trichogramma wasps in the field, relating to the field release and application technology of Trichogramma wasps. It includes: a base, a cage, a trapping unit, an oviposition medium, and a curtain. The cage is fixedly connected to the base, with mesh openings on its side walls and a top opening. The trapping unit includes a light-transmitting funnel and an insect-attracting lamp. The insect-attracting lamp is located inside the cage, and the light-transmitting funnel is connected to the top opening of the cage and extends into the cage to form a one-way channel for attracting lepidopteran insects into the cage. Multiple hanging positions are provided inside the cage, and the oviposition medium is detachably suspended at these positions so that lepidopteran insects entering the cage can lay their eggs on the medium. The curtain is installed on the side walls of the cage and can be opened or closed to allow light to be blocked from entering the cage. This utility model has a simple structure and is easy to use, creating suitable living and reproductive conditions for Trichogramma wasps and achieving long-term effective control of lepidopteran pests in the field.

Description

Technical Field

[0001] This utility model relates to the field release and application technology of Trichogramma wasps, and in particular to a field artificial carrier conservation device suitable for Trichogramma wasps. Background Technology

[0002] As an important parasitic natural enemy of lepidopteran pests, the artificial release of large-scale bred Trichogramma wasps in the field can effectively control various agricultural and forestry pests such as the Asian corn borer, rice stem borer, and pine caterpillar. This biological control method of "using insects to control insects" helps maintain the ecological balance in the field, reduces the use of chemical pesticides, and lowers pesticide residues in the environment and agricultural products, resulting in significant economic, social, and ecological benefits.

[0003] However, current methods of pest control using Trichogramma wasps mainly involve short-term, flood-style releases of large numbers of wasps. But Trichogramma wasps have a short lifespan (only about a week) and limited dispersal ability, meaning the released wasps are only effective for a short period. When pest populations in the field decline, the wasp populations collapse rapidly due to a lack of intermediate hosts and nectar sources, making long-term pest control difficult. For example, in Northeast China and the Huang-Huai-Hai Plain, large-scale releases of Trichogramma wasps are only effective against the current generation of corn borers. Subsequent generations require multiple releases, increasing both field pest control costs and the production and time costs for Trichogramma wasp manufacturers. Therefore, a device that can solve the problem of Trichogramma wasp colonization in the field is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide an artificial carrier conservation device for Trichogramma wasps in the field, which solves the problems existing in the prior art. It has a simple structure, is easy to use, creates suitable living and reproductive conditions for Trichogramma wasps, and achieves long-term and effective control of lepidopteran pests in the field.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a field artificial carrier conservation device for Trichogramma wasps, comprising: a base, a cage, a trapping unit, an oviposition medium, and a curtain. The base is placed on the ground in the field. The cage is fixedly connected to the base, and the side walls of the cage are provided with mesh openings that allow Trichogramma wasps to pass through while restricting the passage of lepidopteran insects. The top of the cage has a top opening. The trapping unit includes a light-transmitting funnel and an insect-attracting lamp. The insect-attracting lamp is disposed inside the cage, and the light-transmitting funnel is fixedly connected to the top opening of the cage and extends into the cage to form a one-way channel for attracting lepidopteran insects into the cage. The cage has multiple hanging positions, and the oviposition medium is detachably suspended at each hanging position so that lepidopteran insects entering the cage can lay their eggs on the oviposition medium. The curtain is installed on the side walls of the cage and can be opened or closed to open the side walls of the cage or to block light from entering the cage.

[0007] Preferably, it also includes a rain cover plate, which is detachably connected to the top of the cage to cover the cage, and a gap is provided between the rain cover plate and the cage to allow the lepidopteran insects to pass through.

[0008] Preferably, the rain cover includes a ridge-shaped baffle and multiple support rods. The top of the cage is provided with multiple insertion holes. The top end of each support rod is fixedly connected to the ridge-shaped baffle, and the bottom end is used to insert into the insertion hole.

[0009] Preferably, the cage includes a support frame, a nylon mesh, multiple crossbars, and multiple elastic clamping members. The bottom of the support frame is fixedly connected to the base, and the top of the support frame is fixedly connected to the light-transmitting funnel. The nylon mesh is detachably connected to the outside of the support frame. Each crossbar is fixedly connected inside the support frame, and each elastic clamping member is disposed on the crossbar. Each elastic clamping member forms a suspension position to clamp and fix the spawning medium.

[0010] Preferably, the nylon mesh is a 20-mesh mud nylon mesh.

[0011] Preferably, it also includes a support beam, which is fixedly connected to the support frame. The distance between the support beam and the base is 28-32cm, and the top surface of the support beam is fixedly connected to the middle of each of the crossbars.

[0012] Preferably, it also includes a nutrient medium, which is suspended on one of the suspension stations.

[0013] Preferably, the egg-laying medium includes one or more of plastic rope, kraft paper strips, gauze, straw rope, plastic film, and pine branches, and the nutrient medium is gauze moistened with 20% sucrose water.

[0014] Preferably, the insect-attracting lamp is a black light lamp, and the attracting unit further includes a photosensitive controller. The photosensitive controller is equipped with a set light intensity, which is 9 to 11 lux. When the actual light intensity is greater than the set light intensity, the photosensitive controller turns off the black light lamp. When the actual light intensity is not greater than the set light intensity, the photosensitive controller turns on the black light lamp.

[0015] Preferably, the base is a waterproof base, the light-transmitting funnel is made of light-transmitting acrylic material, the rain cover is made of plastic material, and the length and width of the waterproof base are 95-105mm.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] This invention provides an artificial carrier conservation device for Trichogramma wasps in the field. The base can be stably placed on the field ground, ensuring the stability of the entire device in outdoor environments and effectively resisting rainwater soaking, extending the device's service life and ensuring the normal operation of all components. Trichogramma wasps can freely enter and exit the cage, using the eggs of lepidopteran insects inside for parasitic reproduction, while confining larger lepidopteran insects within the cage to prevent them from harming the field, while creating a stable breeding environment for the wasps. The combination of a light-transmitting funnel and an insect-attracting lamp forms a highly efficient trapping structure. The light-transmitting funnel guides lepidopteran insects unidirectionally into the cage, preventing them from escaping. The insect-attracting lamp effectively attracts nocturnal lepidopteran insects, concentrating them in the cage and providing a sufficient source of parasitic eggs for the wasps, improving the colonization and reproduction efficiency of Trichogramma wasps. Multiple hanging positions increase the number and types of egg-laying media that can be hung, and the detachable connection facilitates the replacement and maintenance of the egg-laying media. Different oviposition media can attract different species of lepidopteran insects to lay their eggs, enriching the parasitic egg source for Trichogramma wasps and ensuring the device's ability to control various pests. The curtain design allows for adjustment of the cage's lighting conditions as needed. During the day, drawing the curtains allows Trichogramma wasps to enter and exit the cage, sensing the scents of host insects in the field and attracting more wasps to reproduce. At night, drawing the curtains to block out light simulates a natural environment, providing a suitable mating and oviposition environment for the lepidopteran insects in the cage, thus improving the oviposition rate and reproductive efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This utility model provides a structural schematic diagram of an artificial carrier conservation device for Trichogramma wasps in the field.

[0020] Figure 2 This is a front sectional view of the artificial carrier conservation device for Trichogramma wasps in the field provided by this utility model;

[0021] In the diagram: 1. Base; 2. Cage; 21. Support frame; 22. Nylon mesh; 23. Crossbar; 24. Elastic clamp; 25. Support beam; 3. Light-transmitting funnel; 4. Insect-attracting lamp; 5. Curtain; 6. Ridge-type baffle; 7. Support rod; 8. Photosensitive controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide an artificial carrier conservation device for Trichogramma wasps in the field, which solves the problems existing in the prior art. It has a simple structure, is easy to use, creates suitable living and reproductive conditions for Trichogramma wasps, and achieves long-term and effective control of lepidopteran pests in the field.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This utility model provides a field artificial carrier conservation device suitable for Trichogramma wasps, such as... Figures 1-2As shown, the device includes: a base 1, a cage 2, a trapping unit, an oviposition medium, and a curtain 5. The base 1 is placed on the ground in the field. The cage 2 is fixedly connected to the base 1. The side walls of the cage 2 are provided with mesh holes, which allow Trichogramma wasps to pass through while restricting lepidopteran insects from passing through. The top of the cage 2 is provided with a top opening. The trapping unit includes a light-transmitting funnel 3 and an insect-attracting lamp 4. The insect-attracting lamp 4 is placed inside the cage 2. The light-transmitting funnel 3 is fixedly connected to the top opening of the cage 2 and extends into the cage 2 to form a one-way channel for attracting lepidopteran insects into the cage 2. The cage 2 is provided with multiple hanging positions. The oviposition medium is detachably suspended at the hanging positions so that lepidopteran insects entering the cage 2 can lay their eggs on the oviposition medium. The curtain 5 is installed on the side walls of the cage 2 and can be opened or closed to open the side walls of the cage 2 or to block the light from entering the cage 2. The base 1 can be stably placed on the field ground, ensuring the stability of the entire device in outdoor environments. It can effectively resist possible rainwater soaking in the field, extending the service life of the device and ensuring the normal operation of all components. Trichogramma wasps can freely enter and exit the cage 2, using the eggs of lepidopteran insects inside for parasitic reproduction, while confining larger lepidopteran insects inside the cage to prevent them from harming the field, while creating a stable breeding environment for the Trichogramma wasps. The light-transmitting funnel 3 and the insect-attracting lamp 4 combine to form a highly efficient trapping structure. The light-transmitting funnel 3 guides lepidopteran insects unidirectionally into the cage 2, preventing them from escaping. The insect-attracting lamp 4 effectively attracts nocturnal lepidopteran insects, concentrating them inside the cage, providing a sufficient source of parasitic eggs for the Trichogramma wasps, and improving the colonization and reproduction efficiency of the wasps. Multiple hanging positions increase the number and types of egg-laying media that can be hung, and the detachable connection method facilitates the replacement and maintenance of the egg-laying media. Different oviposition media can attract different species of lepidopteran insects to lay eggs, enriching the parasitic egg source for Trichogramma wasps and ensuring the device's ability to control various pests. The design of curtain 5 allows for adjustment of the lighting conditions in cage 2 as needed. During the day, closing curtain 5 facilitates Trichogramma wasps entering and exiting cage 2, allowing them to sense the scents of host insects in the field and attracting more wasps to reproduce. At night, closing curtain 5 blocks out light, simulating a natural environment and providing a suitable mating and oviposition environment for the lepidopteran insects in the cage, thereby improving the oviposition rate and reproductive efficiency.

[0026] In a preferred embodiment, a rain cover is also included. The rain cover is detachably connected to the top of the cage 2 to cover the cage 2. A gap is provided between the rain cover and the cage 2 to allow lepidopteran insects to pass through. The rain cover effectively prevents rainwater from directly entering the cage 2, protecting internal components such as the oviposition medium and the insect-attracting lamp 4 from rainwater corrosion, thus extending the service life of the device. At the same time, the gap ensures that lepidopteran insects can still pass through and enter the cage normally even when the cage 2 is covered, without affecting the trapping effect.

[0027] In a preferred embodiment, the rain cover includes a ridge-shaped baffle 6 and multiple support rods 7. The top of the cage 2 has multiple insertion holes. The top end of each support rod 7 is fixedly connected to the ridge-shaped baffle 6, and the bottom end is used to insert into the insertion hole, facilitating the installation and removal of the rain cover while ensuring its structural stability. When it is not raining, the ridge-shaped baffle 6 and the support rods 7 can be removed together. The shape design of the ridge-shaped baffle 6 facilitates the rapid sliding of rainwater, preventing water accumulation and protecting the interior of the device. The cooperation between the insertion holes and the support rods 7 ensures that the rain cover can be stably positioned on top of the cage 2 after installation, effectively providing rain protection.

[0028] In a preferred embodiment, the cage 2 includes a support frame 21, a nylon mesh 22, multiple crossbars 23, and multiple elastic clamps 24. The bottom of the support frame 21 is fixedly connected to the base 1, and the top of the support frame 21 is fixedly connected to the light-transmitting funnel 3. The nylon mesh 22 is detachably connected to the outside of the support frame 21. Each crossbar 23 is fixedly connected inside the support frame 21. Each elastic clamp 24 is disposed on the crossbar 23, forming a suspension position to hold and fix the oviposition medium. The support frame 21 provides a robust structural support for the entire cage 2, ensuring the stability of the cage 2 in the field environment. The detachable nylon mesh 22 is easy to clean and replace, while ensuring the normal passage of Trichogramma wasps and lepidopteran insects. The suspension positions formed by the crossbars 23 and the elastic clamps 24 firmly fix the oviposition medium, keeping it in a stable position inside the cage, facilitating oviposition by lepidopteran insects, and making it convenient for workers to add and adjust the oviposition medium.

[0029] In a preferred embodiment, the crossbar 23 is made of wood or plastic.

[0030] In a preferred embodiment, the elastic clamp 24 is a commonly used elastic clip.

[0031] In a preferred embodiment, the nylon net 22 is a 20-mesh mudnet, which is connected to the support frame 21 via Velcro or a zipper. Opening the zipper connects the interior of the support frame 21 to the outside, facilitating the full dispersal of Trichogramma wasp offspring into the field. The choice of 20-mesh nylon net 22 ensures the smooth passage of Trichogramma wasps while preventing lepidopteran insects from escaping. The Velcro or zipper connection method makes the disassembly and installation of the nylon net 22 more convenient. Opening the zipper facilitates the dispersal of Trichogramma wasp offspring, enabling timely replenishment of the Trichogramma wasp population in the field, enhancing the control effect against pests, and also facilitating the maintenance and cleaning of the inside of the cage 2.

[0032] In a preferred embodiment, the field artificial carrier conservation device for Trichogramma wasps also includes a support beam 25, which is fixedly connected to the support frame 21. The distance between the support beam 25 and the base 1 is 28-32cm, and the top surface of the support beam 25 is fixedly connected to the middle of each crossbar 23. The support beam 25 further enhances the structural stability of the crossbar 23. The specific height setting (28-32cm) provides suitable space for insect activity and egg laying in the cage, and the connection method with the crossbar 23 can better distribute the load on the crossbar 23, ensuring the stability and reliability of the egg-laying medium suspension.

[0033] In a preferred embodiment, the field artificial carrier conservation device for Trichogramma wasps further includes a nutrient medium suspended from a suspension station. The nutrient medium provides the Trichogramma wasps with the necessary energy source, extending their lifespan and enhancing their reproductive and parasitic abilities. The suspension method ensures stability, ease of management and replacement, and a continuous supply of nutrients.

[0034] In a preferred embodiment, the oviposition medium includes one or more of the following: plastic rope, kraft paper strips, gauze, straw rope, plastic film, and pine branches. The nutrient medium is gauze moistened with a 20% sucrose solution. The plastic rope and straw rope attract lepidopteran armyworms to lay eggs; the folded kraft paper strips attract lepidopteran noctuid moths; the gauze attracts lepidopteran insects such as bollworms, red bollworms, rice moths, and wheat moths; the plastic film attracts some pyralid moths such as the Asian corn borer and rice stem borer; and the pine branches attract lepidopteran insects such as pine caterpillars. The use of various oviposition media attracts a wide variety of lepidopteran insects, expanding the trapping range of the device and enriching the host egg source for Trichogramma wasps. The gauze moistened with a 20% sucrose solution scientifically provides suitable nutrients for the Trichogramma wasps, meeting their survival and reproductive needs and improving their colonization ability.

[0035] In a preferred embodiment, the insect-attracting lamp 4 is a black light. The attracting unit also includes a photosensitive controller 8, which is mounted on top of the support frame 21 and is not obstructed by the curtain 5 and nylon net 22. The photosensitive controller 8 has a set light intensity of 9-11 lux. When the actual light intensity is greater than the set light intensity, the photosensitive controller 8 turns off the black light; when the actual light intensity is not greater than the set light intensity, the photosensitive controller 8 turns on the black light. The black light has a good attracting effect on nocturnal lepidopteran insects. The photosensitive controller 8 can automatically control the switching on and off of the black light according to the ambient light intensity. The reasonable light intensity setting range (9-11 lux) ensures that the black light automatically turns on at night to attract insects and automatically turns off during the day, saving energy while accurately playing its trapping role, thus improving the intelligence and practicality of the device.

[0036] In a preferred embodiment, the field artificial carrier conservation device for Trichogramma bees also includes a mobile power supply, which is electrically connected to a black light lamp.

[0037] In a preferred embodiment, the base 1 is a waterproof plastic base, the light-transmitting funnel 3 is made of light-transmitting acrylic, and the rain cover is made of plastic. The waterproof base 1 has a length of 95-105mm and a width of 95-105mm. The waterproof plastic base 1 effectively prevents moisture from penetrating the device, providing good protection. The light-transmitting acrylic funnel has good light transmittance, which helps the insect-attracting lamp 4 to better exert its trapping effect. The plastic rain cover is lightweight and durable. The suitable size of the base 1 (95-105mm) ensures the stability of the device placement and facilitates its layout and operation in the field, making the device more convenient and practical for field use.

[0038] The following are the usage instructions for the above-mentioned artificial carrier conservation devices suitable for field use of Trichogramma wasps:

[0039] Equipment preparation stage

[0040] Site selection: Choose a suitable location in the field, ensuring that the pests are concentrated in the area and the surrounding environment is relatively open, which is conducive to the activity of Trichogramma wasps and the placement of the devices.

[0041] Inspection of components: Carefully inspect each component of the device to ensure it is complete and undamaged, including the base 1, cage 2 (including support frame 21, nylon net 22, crossbar 23, elastic clamp 24), attracting unit (light-transmitting funnel 3, insect-attracting lamp 4, photosensitive controller 8), rain cover, support beam 25, curtain 5, nutrient medium, and mobile power supply (if equipped), etc., and confirm that each component is functioning normally.

[0042] Installation and debugging

[0043] Mounting base 1: Place the waterproof plastic base 1 stably in the selected field location.

[0044] Assemble cage 2: Fix the bottom of the support frame 21 to the base 1 and the top to the light-transmitting funnel 3; install the 20-mesh nylon mesh 22 on the outside of the support frame 21 using Velcro or zipper; fix multiple crossbars 23 inside the support frame 21 and install multiple elastic clips on the crossbars 23 as suspension positions; install the support beam 25 in a suitable position, fix it to the support frame 21 and fix its top surface to the middle of each crossbar 23, and adjust the height to 28-32cm.

[0045] Install the trapping unit: Install the insect-attracting lamp 4 (black light) inside the cage 2, and fix the light-transmitting funnel 3 to the top opening of the cage 2 and extend it into the cage; connect the photosensitive controller 8, set the light intensity to the range of 9-11 lux, connect the insect-attracting lamp 4 to the photosensitive controller 8 and the power supply (if using the power supply), and adjust it to ensure that the black light is off when the actual light intensity is greater than the set light intensity, and the black light is on when the actual light intensity is not greater than the set light intensity.

[0046] Install other components: Install the rain cover, insert the ridge-type baffle 6 into the hole at the top of the cage 2 through the support rod 7 to make it secure; install the curtain 5 so that it can be opened and closed normally; hang gauze moistened with 20% sugar water as a nutrient medium at one of the hanging positions; hang oviposition media such as plastic rope, kraft paper strips, gauze, straw rope, plastic film and pine branches at the hanging positions as needed.

[0047] Daily use phase

[0048] Routine monitoring and maintenance

[0049] Regularly check the lighting control: Observe whether the black light switches on and off normally according to the light intensity every day. If any abnormality is found, check the photosensitive controller 8 and the wiring connection in time.

[0050] Check the integrity of the device: Regularly check whether the nylon mesh 22 is damaged and whether each component is secure. If any problems are found, repair or replace the components in time to ensure the normal operation of the device.

[0051] Cleaning and replacement of parts: Clean the inside of the cage 2 regularly by unzipping the nylon mesh 22. Replace the nylon mesh 22 if necessary. Check and replace the egg-laying medium and nutrient medium as needed to ensure their ability to attract insects to lay eggs and their nutritional value.

[0052] Check the weather forecast: Before rainy weather arrives, check whether the rain cover is installed properly to ensure that the inside of the device is not wetted by rain; when it is not raining, the ridge baffle 6 and the support rod 7 can be removed together.

[0053] Reproduction and dispersal of Trichogramma wasps

[0054] When releasing Trichogramma wasps in the field, the curtains can be drawn back. The wasps can sense the scent of host insects in the field and enter the cage through the gaps in the cage wall to reproduce using the eggs of lepidopteran insects inside. If the number of Trichogramma wasps released is small and the population in the field is insufficient, it is advisable to artificially inoculate a portion of the wasps into the cage for breeding.

[0055] At sunset, when the light intensity reaches the set value (9-11 lux), the photosensitive controller 8 automatically turns on the black light. The black light attracts nocturnal lepidopteran insects to enter the cage unidirectionally through the light-transmitting funnel 3.

[0056] After sunrise, the black lights are turned off, and the curtains are drawn to provide a dark simulated environment for the lepidopteran insects in the cage to mate and lay eggs, thereby increasing the egg-laying rate.

[0057] Management of Trichogramma wasps after reproduction

[0058] After a period of reproduction and development within the cage, the offspring of the Trichogramma wasp will emerge as adults at the appropriate time. If it is necessary for the Trichogramma wasp offspring to spread to a wider area of ​​the field to exert a control effect, the nylon netting can be completely opened or the zipper can be unzipped to allow the reproduced Trichogramma wasp offspring to fully spread into the field, thereby enhancing the control effect on pests.

[0059] End of use phase

[0060] When the conservation device is not needed for pest control in the field, the following operations can be performed:

[0061] Dismantling components: Turn off the power and disconnect the power bank (if used); remove the rain cover and curtain 5 in sequence; loosen and remove the connection between the nylon net 22 and the support frame 21; remove the egg-laying medium and nutrient medium on the crossbar 23; disassemble the black light lamp, photosensitive controller 8 and other attracting unit components; remove the support beam 25, crossbar 23, etc.

[0062] Cleaning and storage: Clean dust and debris from all parts, and store plastic parts in a dry and ventilated place to prevent moisture damage; for fragile parts, take protective measures for future use.

[0063] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A field artificial carrier conservation device for Trichogramma wasps, characterized in that: include: A base (1) is used to place the base on the ground in a field. The cage (2) is fixedly connected to the base (1). The side wall of the cage (2) is provided with mesh holes, which allow Trichogramma wasps to pass through and restrict Lepidoptera insects from passing through. The top of the cage (2) is provided with a top opening. The trapping unit includes a light-transmitting funnel (3) and an insect-attracting lamp (4). The insect-attracting lamp (4) is installed inside the cage (2). The light-transmitting funnel (3) is fixedly connected to the top opening of the cage (2) and extends into the cage (2) to form a one-way channel for attracting lepidopteran insects into the cage (2). An oviposition medium, wherein the cage (2) is provided with multiple hanging positions, the oviposition medium being detachably suspended at the hanging positions so that lepidopteran insects entering the cage (2) lay their eggs on the oviposition medium; and Curtain (5), the curtain (5) is installed on the side wall of the cage (2) and can be opened and closed to open the side wall of the cage (2) or to block the light from the cage (2).

2. The field artificial carrier conservation device for Trichogramma wasps according to claim 1, characterized in that: It also includes a rain cover plate, which is detachably connected to the top of the cage (2) to cover the cage (2), and there is a gap between the rain cover plate and the cage (2) to allow the lepidopteran insects to pass through.

3. The field artificial carrier conservation device for Trichogramma wasps according to claim 2, characterized in that: The rain cover includes a ridge-shaped baffle (6) and multiple support rods (7). The top of the cage (2) is provided with multiple insertion holes. The top of each support rod (7) is fixedly connected to the ridge-shaped baffle (6), and the bottom is used to be inserted into the insertion hole.

4. The field artificial carrier conservation device for Trichogramma wasps according to claim 1, characterized in that: The cage (2) includes a support frame (21), a nylon mesh (22), multiple crossbars (23) and multiple elastic clamps (24). The bottom of the support frame (21) is fixedly connected to the base (1), and the top of the support frame (21) is fixedly connected to the light-transmitting funnel (3). The nylon mesh (22) is detachably connected to the outside of the support frame (21). Each crossbar (23) is fixedly connected inside the support frame (21). Each elastic clamp (24) is disposed on the crossbar (23) and forms a suspension position to clamp and fix the spawning medium.

5. The field artificial carrier conservation device for Trichogramma wasps according to claim 4, characterized in that: The nylon mesh (22) is a 20-mesh nylon mesh.

6. The field artificial carrier conservation device for Trichogramma wasps according to claim 5, characterized in that: It also includes a support beam (25), which is fixedly connected to the support frame (21). The distance between the support beam (25) and the base (1) is 28~32cm, and the top surface of the support beam (25) is fixedly connected to the middle of each of the crossbars (23).

7. The field artificial carrier conservation device for Trichogramma wasps according to claim 6, characterized in that: It also includes a nutrient medium, which is suspended on one of the suspension stations.

8. The field artificial carrier conservation device for Trichogramma wasps according to claim 7, characterized in that: The nutrient medium is gauze moistened with a 20% sucrose solution.

9. The field artificial carrier conservation device for Trichogramma wasps according to claim 1, characterized in that: The insect-attracting lamp (4) is a black light lamp. The attracting unit also includes a photosensitive controller (8). The photosensitive controller (8) is equipped with a set light intensity of 9~11 lux. When the actual light intensity is greater than the set light intensity, the photosensitive controller (8) turns off the black light lamp. When the actual light intensity is not greater than the set light intensity, the photosensitive controller (8) turns on the black light lamp.

10. The field artificial carrier conservation device for Trichogramma wasps according to claim 2, characterized in that: The base (1) is a waterproof base (1), the light-transmitting funnel (3) is made of light-transmitting acrylic material, the rain cover is made of plastic material, and the length of the waterproof base (1) is 95~105mm and the width is 95~105mm.

Images