Biological control device and pest control system thereof

Abstract

The invention relates to the technical field of pest prevention and control, in particular to a biological prevention and control device and a pest prevention and control system.The biological prevention and control device comprises a pipeline, a first bacterium carrying device, a nesting plate, a shading cover and a tray, and a through opening is formed in the pipeline; the first bacterium carrying device is connected to one end of the pipeline; the shading cover, the nesting plate and the tray are all arranged on the pipeline in a sleeving mode and connected with the pipeline, the shading cover covers the tray, a movable cavity is defined between the shading cover and the tray, and the nesting plate is located in the movable cavity; an inner cavity of the pipeline is communicated with the movable cavity through the through opening. The defect that in the prior art, the long-term stable prevention and control effect is difficult to form due to the fact that ants are prone to moving is overcome, by providing a stable and comfortable inhabiting and nesting place for the ants, the ants in the nature can be attracted to nest and live in the activity cavity, the contact frequency and time of the ants and the first bacterium carrying device can be increased, and the survival rate of the ants is increased. Therefore, insecticidal microorganisms are carried and spread more effectively, and a long-term stable prevention and control effect is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of pest control, and more specifically, to a biological control device and a pest control system thereof. Background Art

[0002] At present, there are two methods of field pest control: physical control and biological control. Physical control is to use physical means to directly interfere with or prevent the activities and reproduction of pests. For example, using traps, sticky insect boards, ultraviolet lamps, nets and other facilities to attract, capture or isolate pests to reduce their harm to crops. Biological control is to use natural enemy insects or microorganisms to control pest populations. For example, releasing predatory natural enemies or using insecticidal microorganisms such as Bacillus thuringiensis and Beauveria bassiana to control pests.

[0003] The prior art discloses a method for controlling piercing-sucking pests by using ants carrying Beauveria bassiana. The method uses Beauveria bassiana as an insect pathogen and Japanese camptothecin as a carrier insect. The carrier insect is obtained by artificial breeding, and the insecticidal microorganisms infected by the ants are used to control the pests.

[0004] When implementing the above technical solution, it is necessary to select a point in the field to place the carrier, and then release the artificially cultivated ants near the carrier. The activity range and residence time of ants are greatly affected by the environment. If the environmental conditions are not suitable for ants to build nests and settle down, they will quickly migrate to various places to build nests, and will not repeatedly pass by the carrier, so the ants only pass by the carrier for a short time. First of all, due to the short time of contact with insecticidal microorganisms, ants may not be able to fully carry enough microorganisms, and the activity path and range of ants are difficult to control, and the spread range of microorganisms is not concentrated, which will lead to less than ideal prevention and control effects. Secondly, once the ants leave the carrier, the effect of using the insecticidal microorganisms carried by the ants to control pests will weaken over time, and it is difficult to form a long-term and stable prevention and control effect. Summary of the invention

[0005] In view of the problem in the above-mentioned prior art that it is difficult to form a long-term and stable prevention and control effect due to the easy migration of ants, the present invention provides a biological control device and a pest control system thereof, which can form a long-term and stable prevention and control effect.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0007] A biological control device comprises a pipeline, a first bacteria-carrying device, a nesting plate, a light-shielding cover and a tray, wherein a through opening is provided on the side wall of the pipeline; the first bacteria-carrying device is connected to one end of the pipeline; the light-shielding cover, the nesting plate and the tray are all sleeved on the pipeline and connected to the pipeline, the light-shielding cover is arranged on the tray and an active cavity is enclosed therebetween, and the nesting plate is located in the active cavity; the inner cavity of the pipeline is connected to the active cavity through the through opening.

[0008] When the above technical solution is used, the end of the pipeline away from the first bacteria-carrying device is inserted into the soil in the field, and the light shielding cover and the first bacteria-carrying device are exposed to the outside, wherein the outlet end of the first bacteria-carrying device is connected to the insect control platform. The insect control platform is a platform set up in the field in the prior art to attract and trap pests on a large scale. Connecting the outlet end of the first bacteria-carrying device to the insect control platform can improve the efficiency of biological control. Since a relatively dark and hidden activity cavity is formed between the light shielding cover and the tray, the sheltering and protection conditions in the natural environment can be simulated, and the nesting board can provide a nesting site for ants, so ants in nature can be attracted to enter the activity cavity through the opening on the pipeline, and then build nests on the nesting board to settle down. Even in hot weather, ants will make insulation structures in the activity cavity and will not easily abandon the nest and leave. After the ants settle down in the activity cavity, they need to pass through the first bacteria-carrying device at the end of the pipeline when they go out to search for pests, collect honey, suck dew and other activities, so that they will be contaminated with insecticidal microorganisms on the first bacteria-carrying device and inoculate and spread the insecticidal microorganisms to the insect control platform.

[0009] By providing ants with a stable and comfortable habitat and nesting place, ants are attracted to build nests and settle down, which is conducive to increasing the frequency and time of contact between ants and the first bacteria-carrying device, thereby more effectively carrying and spreading insecticidal microorganisms, and improving the effectiveness and stability of biological control. In addition, since the pests on the insect control platform can be used as one of the food sources for ants, it can attract ants that have already built nests and ants that have not built nests to gather here, thereby further increasing the spread rate of insecticidal microorganisms; at the same time, when ants eat the pests on the insect control platform, it is equivalent to cleaning the pests on the insect control platform, which can make the insect control platform always new and maintain a stable pest trapping power. The above-mentioned device adopts biological control methods, and the insect control platform adopts physical control methods. When the two are used in combination, they can form a self-sustaining ecosystem without human intervention, which can make the effect of biological control more lasting and stable.

[0010] Preferably, the first bacteria-carrying device comprises a bacteria-carrying ring strip, which is coaxially connected to one end of the pipeline. The bacteria-carrying ring strip is an annular structure carrying insecticidal microorganisms, which can be a non-woven fabric strip or a ring strip made of other materials that are easy to absorb bacterial powder. The bacteria-carrying ring strip can ensure that the ants can carry a certain amount of insecticidal microorganisms every time they pass by, avoiding the problem of insufficient or uneven carrying of insecticidal microorganisms due to random contact of the ants with the first bacteria-carrying device.

[0011] Preferably, the first bacteria-carrying device further comprises a limiting ring coaxially connected to one end of the pipeline, the inner ring of the limiting ring is provided with a receiving ring groove, and the bacteria-carrying ring strip is detachably installed in the receiving ring groove. The bacteria-carrying ring strip is detachably connected to the pipeline through the limiting ring, so that it is convenient for the staff to remove the bacteria-carrying ring strip to supplement the insecticidal microorganisms or replace the bacteria-carrying ring strip.

[0012] Preferably, it also includes water-absorbing and moisturizing cotton, which is located in the active cavity and at least partially contacts the inner wall of the light-shielding cover; the edge of the tray is provided with a first water retaining portion, and a first water collecting trough is formed between the first water retaining portion and the outer wall of the light-shielding cover; a plurality of first water-permeable holes are provided on the part of the light-shielding cover that contacts the water-absorbing and moisturizing cotton, and the first water collecting trough is connected to the active cavity through the first water-permeable holes; the nesting plate is provided with a plurality of first air-permeable holes, and the first air-permeable holes can be air-permeable and water-permeable, so that the humidity in the active cavity is kept uniform. The first water collecting trough can receive and store water sources such as rainwater and dew, and the water-absorbing and moisturizing cotton can absorb the water in the first water collecting trough through the first water-permeable holes and maintain a certain humidity, so that the air inside the active cavity is kept moist. A humid environment is closer to a natural environment and can attract more ants to enter the active cavity to build nests. During the period of living in the active cavity, the ants will cover part of the area of ​​the water-absorbing and moisturizing cotton, so as to adjust the area of ​​the water-absorbing and moisturizing cotton exposed in the active cavity, thereby meeting their own needs for environmental humidity.

[0013] Preferably, it also includes a ventilation cylinder, which passes through the tray and is connected to the tray. A first baffle and a second baffle are respectively provided at the two ports of the ventilation cylinder, a plurality of second ventilation holes are provided on the first baffle, and a plurality of third ventilation holes are provided on the second baffle; the second ventilation holes are connected to the activity cavity. The first baffle and the second baffle can block ants and prevent ants from leaving the activity cavity through the ventilation cylinder instead of the pipe. External air can enter the ventilation cylinder through the third ventilation hole and then enter the activity cavity through the second ventilation hole. The ventilation cylinder can increase the air permeability of the activity cavity. Appropriate air permeability can prevent the growth of mold or other harmful microorganisms in the activity cavity due to excessive humidity, thereby providing more suitable living conditions for ants. Moreover, appropriate air permeability helps the germination and survival of insecticidal microorganisms carried by ants in the activity cavity, which is conducive to improving the effect of biological control.

[0014] Preferably, at least two nesting boards are provided and spaced apart along the axial direction of the pipe, and the nesting boards are located between the top and bottom of the through opening. Providing at least two nesting boards helps ants to fully utilize space to construct complex nest compartments.

[0015] Preferably, it also includes a buried cover and a water collecting ring, the top of the buried cover is connected to the end of the pipeline away from the first bacteria-carrying device, and the buried cover is provided with a plurality of second water permeable holes; the water collecting ring is connected to the edge of the buried cover, and the water collecting ring is provided with a second water collecting trough, and the second water collecting trough is connected to the inner cavity of the buried cover. When in use, the buried cover is buried in the soil, and the water in the soil can penetrate into the inner wall of the buried cover through the second water permeable holes, and the water on the inner wall of the buried cover flows to the second water collecting trough and gathers, and the water in the second water collecting trough evaporates and enters the active cavity through the inner cavity and the through-port of the pipeline. The buried cover can collect moisture in the soil to the second water collecting trough, and the water in the second water collecting trough evaporates and replenishes the active inner cavity. In this way, the dependence on the water source of the first water collecting trough can be reduced, and the influence of the water volume of the first water collecting trough on the humidity inside the active cavity can be buffered. Ants will replenish or remove nesting materials at the through-port according to the required humidity, thereby adjusting the opening size of the through-port to keep the humidity in the active cavity within a suitable range.

[0016] Preferably, the inner wall of the buried cover is a spherical surface. The spherical surface structure can make the water flow into the second water collection tank more quickly and smoothly, and reduce the water residue on the inner wall of the buried cover.

[0017] Preferably, a telescopic portion is provided on the pipe, and the telescopic portion is located between the light shielding cover and the buried cover. The telescopic portion may be a multi-jointed telescopic tube or a corrugated telescopic hose. The telescopic portion can adjust the distance between the buried cover and the tray, and facilitates the adjustment of the buried depth of the buried cover to meet the use requirements under different soil and environmental conditions.

[0018] Preferably, the outside of the pipeline is connected to a second bacteria-carrying device, which is located between the tray and the buried cover. Ants that move outside the pipeline may be infected with insecticidal microorganisms through the second bacteria-carrying device, and then inoculate and spread the insecticidal microorganisms to the field. Ants attracted from the field to the insect control platform will also bring the insecticidal microorganisms in the field to the insect control platform for reproduction, which can not only expand the scope of pest control, but also implement "using insects to control insects" and "using bacteria to control insects" in a long-term and natural manner. Therefore, the provision of a second bacteria-carrying device is conducive to improving the transmission efficiency of insecticidal microorganisms and enhancing the prevention and control effect.

[0019] The present invention also provides a pest control system, including an insect attractant component, an insect control platform and the aforementioned biological control device, wherein the insect attractant component is arranged on the insect control platform, and the outlet end of the first bacteria-carrying device is connected to the insect control platform. The insect attractant component is used to induce pests to gather in the insect attractant component and on the insect control platform, and it can be a pest trap, an insect attractant lamp, a chemical trapping component with plant volatiles, etc. Combining the biological control device with the insect control platform can shrink large-scale pest control to small-scale pest control. This pest control method that spreads from surface to point and from point to surface is efficient and environmentally friendly, and can also greatly save control costs. Other principles and effects of the system have been described in the previous text and will not be repeated here.

[0020] Beneficial effects of the present invention:

[0021] 1. By providing ants with stable and comfortable habitats and nesting places, ants in nature can be attracted to build nests and settle in the activity cavity, which is conducive to increasing the frequency and time of contact between ants and the first bacteria-carrying device, thereby more effectively carrying and spreading insecticidal microorganisms, improving the effectiveness and stability of biological control, and forming a long-term and stable prevention and control effect.

[0022] 2. Combining the three green control methods of "microbial control", "physical control" and "insect control" can form a self-sustaining ecosystem. The pest bodies on the insect control platform can be used as one of the food sources for ants, which can attract ants that have built nests and ants that have not built nests to gather here, thereby further increasing the spread rate of insecticidal microorganisms; when ants eat the pest bodies on the insect control platform, it is equivalent to cleaning the pest bodies on the insect control platform, which can keep the insect control platform new over time and maintain a stable pest trapping power. The entire system can achieve a continuous and stable pest control effect without human intervention.

[0023] 3. The insect trapping component can attract a wide range of pests to the inside of the insect trapping component and the insect control platform. When ants crawl to the insect trapping component and the insect control platform to prey on pests, they will contact and carry the insecticidal microorganisms on the insect trapping component and the insect control platform, and then spread the insecticidal microorganisms to a wider area, causing an "insect plague" effect. This effect is continuously circulated through the interaction between pests and ants, and eventually forms an ecological balance. This pest control method from surface to point and then from point to surface can not only achieve long-term and effective pest control goals, but is also efficient and environmentally friendly, and can significantly reduce the cost of control. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a biological control device;

[0025] Figure 2 It is a partial structural schematic diagram of a biological control device;

[0026] Figure 3 It is a schematic diagram of the structure of a pest control system;

[0027] Figure 4 It is a schematic diagram of the structure of the breathable tube;

[0028] Figure 5 It is a structural diagram of the buried cover.

[0029] In the attached drawings: 1-pipe; 101-opening; 102-telescopic part; 103-bending part; 2-first bacteria-carrying device; 201-limiting ring; 202-accommodating ring groove; 203-bacteria-carrying ring strip; 3-nesting plate; 4-light shielding cover; 401-active cavity; 5-tray; 501-first water retaining part; 502-first water collecting tank; 6-water-absorbing and moisturizing cotton; 7-ventilation tube; 8-first baffle; 801-second air hole; 9-second baffle; 901-third air hole; 10-buried cover; 11-water collecting ring; 1101-second water collecting tank; 12-second bacteria-carrying device; 13-insect attractant assembly; 14-insect control platform. DETAILED DESCRIPTION

[0030] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0033] Example 1

[0034] This embodiment is the first embodiment of a biological control device. Figure 1 and Figure 2As shown, it includes a pipeline 1, a first bacteria-carrying device 2, a nesting plate 3, a shading cover 4 and a tray 5, and a through opening 101 is provided on the side wall of the pipeline 1; the first bacteria-carrying device 2 is connected to one end of the pipeline 1; the shading cover 4, the nesting plate 3 and the tray 5 are all sleeved on the pipeline 1 and connected to the pipeline 1, the shading cover 4 is covered on the tray 5 and an active cavity 401 is formed between the two, and the nesting plate 3 is located in the active cavity 401; the inner cavity of the pipeline 1 is connected to the active cavity 401 through the through opening 101.

[0035] The nesting board 3 may be a plate structure with a flat surface or a plate structure with an uneven surface. In this embodiment, the longitudinal section of the nesting board 3 is in the shape of a broken line. In the natural environment, ant nests usually have a complex structure, including multiple passages and rooms. The nesting board 3 with a broken line longitudinal section can form multiple small spaces or corners, so that the nesting board 3 provides more activity areas within a limited volume, provides more functional partitions for ants, and simulates a natural environment that is more suitable for ants to live.

[0036] Furthermore, a bending portion 103 is provided at the top of the pipe 1, and the axis of the bending portion 103 is perpendicular to the axis of the pipe 1; the first bacteria-carrying device 2 is connected to the end of the bending portion 103. The horizontal bending portion 103 can facilitate the docking of the first bacteria-carrying device 2 with the external insect control platform 14.

[0037] Further, the first bacteria-carrying device 2 includes a bacteria-carrying ring strip 203, the inner diameter of which is larger than the inner diameter of the pipeline 1, and the bacteria-carrying ring strip 203 is coaxially connected to one end of the pipeline 1. The bacteria-carrying ring strip 203 is an annular structure that carries insecticidal microorganisms, and it can be a ring strip made of a non-woven fabric or other material that is easy to adsorb bacterial powder. The bacteria-carrying ring strip 203 can ensure that the ants can carry a certain amount of insecticidal microorganisms every time they pass by, avoiding the problem of insufficient or uneven carrying of insecticidal microorganisms due to random contact of the ants with the first bacteria-carrying device 2.

[0038] Furthermore, the first bacteria-carrying device 2 also includes a limiting ring 201 coaxially connected to one end of the pipeline 1, and an accommodating ring groove 202 is provided on the inner ring of the limiting ring 201, and the bacteria-carrying ring strip 203 is detachably installed in the accommodating ring groove 202. The bacteria-carrying ring strip 203 is detachably connected to the pipeline 1 through the limiting ring 201, so that the staff can conveniently remove the bacteria-carrying ring strip 203 to supplement the insecticidal microorganisms or replace the bacteria-carrying ring strip 203.

[0039] The working principle or workflow of this embodiment: Figures 1 to 3As shown, when in use, the end of the pipe 1 away from the first bacteria-carrying device 2 is inserted into the soil in the field, the light shielding cover 4 and the first bacteria-carrying device 2 are exposed, and the outlet end of the first bacteria-carrying device 2 is connected to the insect control platform 14. The insect control platform 14 is a platform set in the field in the prior art to attract and trap pests on a large scale. Connecting the outlet end of the first bacteria-carrying device 2 to the insect control platform 14 can improve the efficiency of biological control. Since a relatively dark and hidden activity cavity 401 is formed between the light shielding cover 4 and the tray 5, the sheltering and protection conditions in the natural environment can be simulated, and the nesting plate 3 can provide a nesting site for ants, so that ants in nature can be attracted to enter the activity cavity 401 through the opening 101 on the pipe 1, and then build nests on the nesting plate 3. Even when the weather is hot, ants will make insulation construction in the activity cavity 401 and will not easily abandon the nest and leave. After the ants settle down in the activity chamber 401, they need to pass through the first bacteria-carrying device 2 at the end of the pipeline 1 when they go out to search for pests, collect nectar, suck dew, etc., so that they will be contaminated with the insecticidal microorganisms on the first bacteria-carrying device 2 and inoculate and spread the insecticidal microorganisms to the insect control platform 14.

[0040] Beneficial effects of this embodiment:

[0041] 1. By providing ants with stable and comfortable habitats and nesting places, ants in nature can be attracted to build nests and settle in the activity cavity, which is conducive to increasing the frequency and time of contact between ants and the first bacteria-carrying device, thereby more effectively carrying and spreading insecticidal microorganisms, improving the effectiveness and stability of biological control, and forming a long-term and stable prevention and control effect.

[0042] Example 2

[0043] This embodiment is a second embodiment of a biological control device. This embodiment is similar to the first embodiment, except that Figures 1 to 5As shown, it also includes water-absorbing and moisturizing cotton 6, which is located in the active cavity 401 and at least partially contacts the inner wall of the light shielding cover 4; the edge of the tray 5 is provided with a first water retaining portion 501, and a first water collecting groove 502 is formed between the first water retaining portion 501 and the outer wall of the light shielding cover 4; the part of the light shielding cover 4 that contacts the water-absorbing and moisturizing cotton 6 is provided with a plurality of first water-permeable holes (not shown in the figure), and the first water collecting groove 502 is connected to the active cavity 401 through the first water-permeable holes; the nesting plate 3 is provided with a plurality of first air-permeable holes, and the first air-permeable holes can be air-permeable and water-permeable, so that the humidity in the active cavity 401 is kept uniform. The first water collecting groove 502 can receive and store water sources such as rainwater and dew, and the water-absorbing and moisturizing cotton 6 can absorb the water in the first water collecting groove 502 through the first water-permeable holes and maintain a certain humidity, so that the air inside the active cavity 401 is kept moist. The humid environment is closer to the natural environment, which can attract more ants to enter the active cavity 401 to build nests. During the period of living in the activity cavity 401, the ants will cover part of the area of ​​the water-absorbing and moisturizing cotton 6, so as to adjust the area of ​​the water-absorbing and moisturizing cotton 6 exposed in the activity cavity 401, thereby meeting their own needs for environmental humidity.

[0044] Furthermore, it also includes a ventilation tube 7, which passes through the tray 5 and is connected to the tray 5. The two ports of the ventilation tube 7 are respectively provided with a first baffle 8 and a second baffle 9, the first baffle 8 is provided with a plurality of second ventilation holes 801, and the second baffle 9 is provided with a plurality of third ventilation holes 901; the second ventilation holes 801 are communicated with the activity chamber 401. The first baffle 8 and the second baffle 9 can block the ants and prevent the ants from leaving the activity chamber 401 through the ventilation tube 7 instead of the pipe 1. The outside air can enter the ventilation tube 7 through the third ventilation hole 901, and then enter the activity chamber 401 through the second ventilation hole 801. The ventilation tube 7 can increase the air permeability of the activity chamber 401, and the appropriate air permeability can prevent the growth of mold or other harmful microorganisms in the activity chamber 401 due to excessive humidity, thereby providing more suitable living conditions for the ants. Moreover, the appropriate air permeability is conducive to the germination and survival of the insecticidal microorganisms carried by the ants in the activity chamber 401, which is conducive to improving the effect of biological control.

[0045] Furthermore, two nesting boards 3 are provided and are spaced apart along the axial direction of the pipe 1, and the nesting boards 3 are both located between the top and bottom ends of the through opening 101. The provision of two nesting boards 3 helps ants to fully utilize the space to construct complex nest compartments. The edge of the nesting board 3 can be completely in contact with the inner wall of the light shielding cover 4, or can be kept at a certain distance from the inner wall of the light shielding cover 4. In this embodiment, the outer edge of the nesting board 3 is completely in contact with the inner wall of the light shielding cover 4.

[0046] Furthermore, it also includes a buried cover 10 and a water collecting ring 11. The top of the buried cover 10 is connected to the end of the pipeline 1 away from the first bacteria-carrying device 2. The buried cover 10 is provided with a plurality of second water-permeable holes (not shown in the figure); the water collecting ring 11 is connected to the edge of the buried cover 10, and the water collecting ring 11 is provided with a second water collecting tank 1101, and the second water collecting tank 1101 is connected to the inner cavity of the buried cover 10. When in use, the buried cover 10 is buried in the soil, and the water in the soil can penetrate into the inner wall of the buried cover 10 through the second water-permeable holes. The water on the inner wall of the buried cover 10 flows to the second water collecting tank 1101 and gathers. After the water in the second water collecting tank 1101 evaporates, it enters the active cavity 401 through the inner cavity of the pipeline 1 and the opening 101. The buried cover 10 can collect moisture in the soil to the second water collecting tank 1101, and the water in the second water collecting tank 1101 evaporates and replenishes it in the active inner cavity. This can reduce the dependence on the water source of the first water collection tank 502 and buffer the effect of the water volume of the first water collection tank 502 on the humidity inside the activity chamber 401. The ants will add or remove the nesting materials on the opening 101 according to the required humidity, thereby adjusting the opening size of the opening 101 to keep the humidity inside the activity chamber 401 within a suitable range.

[0047] Furthermore, the inner wall of the buried cover 10 is a spherical surface. The spherical surface structure allows water to flow into the second water collection tank 1101 more quickly and smoothly, reducing the residual water on the inner wall of the buried cover 10.

[0048] Furthermore, the pipe 1 is provided with a telescopic portion 102, which is located between the light shielding cover 4 and the buried cover 10. Specifically, the telescopic portion 102 is a corrugated telescopic hose. The corrugated telescopic hose can be telescoped in the vertical direction and can also be bent in the horizontal direction. The telescopic portion 102 can be provided to adjust the distance between the buried cover 10 and the tray 5, and the buried depth and buried position of the buried cover 10 can be adjusted to meet the use requirements under different soil and environmental conditions.

[0049] Furthermore, the outside of the pipeline 1 is connected to a second bacteria-carrying device 12, which is located between the tray 5 and the buried cover 10. The structure of the second bacteria-carrying device 12 is the same as that of the first bacteria-carrying device 2. Ants that move outside the pipeline 1 may be infected with insecticidal microorganisms through the second bacteria-carrying device 12, and then inoculate and spread the insecticidal microorganisms to the field. Ants attracted from the field to the insect control platform will also bring the insecticidal microorganisms in the field to the insect control platform for reproduction, which can not only expand the scope of pest control, but also implement "insects to control insects" and "bacteria to control insects" in a long-term and natural manner. Therefore, the second bacteria-carrying device 12 is conducive to improving the transmission efficiency of insecticidal microorganisms and enhancing the prevention and control effect.

[0050] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1.

[0051] Example 3

[0052] This embodiment is a first embodiment of a pest control system. This embodiment is similar to Embodiment 2, except that: Figure 3 As shown, it includes an insect trap component 13, an insect control platform 14 and the biological control device described in Example 2, the insect trap component 13 is arranged on the insect control platform 14, and the outlet end of the first bacteria-carrying device 2 is connected to the insect control platform 14. Among them, the insect trap component 13 can be a pest trap, an insect trap lamp, a chemical trap component with plant volatiles, etc. The insect trap component 13 and the insect control platform 14 are both existing technologies, so the specific structures of the two are not described in detail.

[0053] Beneficial effects of this embodiment:

[0054] 1. Combining the three green control methods of "microbial control", "physical control" and "using insects to control insects" can form a self-sustaining ecosystem. The pests on the insect control platform can be used as one of the food sources for ants, which can attract both ants that have built nests and ants that have not built nests to gather here, thereby further increasing the spread rate of insecticidal microorganisms; when ants eat the pests on the insect control platform, it is equivalent to cleaning the pests on the insect control platform, which can keep the insect control platform new over time and maintain a stable pest trapping power. The entire system can achieve a continuous and stable pest control effect without human intervention.

[0055] 2. The insect trap component can attract a wide range of pests to the inside of the insect trap component and the insect control platform. When ants crawl to the insect trap component and the insect control platform to prey on pests, they will contact and carry the insecticidal microorganisms on the insect trap component and the insect control platform, and then spread the insecticidal microorganisms to a wider area, causing an "insect plague" effect. This effect is continuously circulated through the interaction between pests and ants, and eventually forms an ecological balance. This pest control method from surface to point and then from point to surface can not only achieve long-term and effective pest control goals, but is also efficient and environmentally friendly, and can significantly reduce the cost of control.

[0056] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 2.

[0057] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description, and it is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A biological control device, characterized in that: The invention comprises a pipeline (1), a first bacteria-carrying device (2), a nesting plate (3), a light shielding cover (4) and a tray (5); a through opening (101) is provided on the side wall of the pipeline (1); the first bacteria-carrying device (2) is connected to one end of the pipeline (1); the light shielding cover (4), the nesting plate (3) and the tray (5) are all sleeved on the pipeline (1) and connected to the pipeline (1); the light shielding cover (4) is covered on the tray (5) and an active cavity (401) is formed between the two; the nesting plate (3) is located in the active cavity (401); the inner cavity of the pipeline (1) is connected to the active cavity (401) through the through opening (101).

2. A biological control device according to claim 1, characterized in that: The first bacteria-carrying device (2) comprises a bacteria-carrying ring strip (203), and the bacteria-carrying ring strip (203) is coaxially connected to one end of the pipeline (1).

3. A biological control device according to claim 2, characterized in that: The first bacteria-carrying device (2) further comprises a limiting ring (201) coaxially connected to one end of the pipeline (1); an accommodating ring groove (202) is provided on the inner ring of the limiting ring (201); and the bacteria-carrying ring strip (203) is detachably mounted in the accommodating ring groove (202).

4. A biological control device according to claim 1, characterized in that: It also includes water-absorbing and moisturizing cotton (6), which is located in the active cavity (401) and at least partly contacts the inner wall of the light-shielding cover (4); a first water retaining portion (501) is provided on the edge of the tray (5), and a first water collecting trough (502) is formed between the first water retaining portion (501) and the outer wall of the light-shielding cover (4); a plurality of first water-permeable holes are provided on the portion of the light-shielding cover (4) that contacts the water-absorbing and moisturizing cotton (6), and the first water collecting trough (502) is connected to the active cavity (401) through the first water-permeable holes; and a plurality of first air-permeable holes are provided on the nesting plate (3).

5. A biological control device according to claim 4, characterized in that: The device further comprises a ventilation tube (7), wherein the ventilation tube (7) passes through the tray (5) and is connected to the tray (5), and a first baffle (8) and a second baffle (9) are respectively provided at two ends of the ventilation tube (7), wherein the first baffle (8) is provided with a plurality of second ventilation holes (801), and the second baffle (9) is provided with a plurality of third ventilation holes (901); and the second ventilation holes (801) are communicated with the active cavity (401).

6. A biological control device according to claim 1, characterized in that: At least two nesting plates (3) are provided and are spaced apart along the axial direction of the pipeline (1); the nesting plates (3) are located between the top and bottom ends of the through opening (101).

7. A biological control device according to claim 1, characterized in that: It also comprises a buried cover (10) and a water collecting ring (11); the top end of the buried cover (10) is connected to an end of the pipeline (1) away from the first bacteria-carrying device (2); a plurality of second water-permeable holes are provided on the buried cover (10); the water collecting ring (11) is connected to the edge of the buried cover (10); a second water collecting trough (1101) is provided on the water collecting ring (11); and the second water collecting trough (1101) is communicated with the inner cavity of the buried cover (10).

8. A biological control device according to claim 7, characterized in that: The pipeline (1) is provided with a telescopic portion (102), and the telescopic portion (102) is located between the light shielding cover (4) and the buried cover (10).

9. A biological control device according to claim 7, characterized in that: The pipeline (1) is externally connected to a second bacteria-carrying device (12), and the second bacteria-carrying device (12) is located between the tray (5) and the buried cover (10).

10. A pest control system, characterized in that: It comprises an insect attracting component (13), an insect controlling platform (14) and a biological control device according to any one of claims 1 to 9, wherein the insect attracting component (13) is arranged on the insect controlling platform (14), and the outlet end of the first bacteria-carrying device (2) is connected to the insect controlling platform (14).

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