Tomato leaf tier green prevention and control device

Abstract

The utility model relates to tomato leaf roller prevention and control technical field, and disclose a kind of tomato leaf roller green prevention and control device, including the shell placed on the soil ground between solanaceae plants, the hollow insertion tube extending to its inside is provided in the shell top surface, the hollow insertion tube below and located shell inside bottom is provided with the water ball of wrapping tomato leaf roller repellent agent. The utility model directly presses paperboard downwards, and with the hollow insertion tube at the bottom of paperboard being pressed down is driven and moves down and then contacts water ball and then is pierced, and the water agent containing tomato leaf roller repellent agent is then directly to the soil and is contacted with soil and starts to volatilize with the water agent containing tomato leaf roller repellent agent, and the volatilized tomato leaf roller repellent agent composition directly covers the whole solanaceae plant from bottom to top, reach the advantage that the stems and leaves of solanaceous plants are comprehensively prevented and controlled tomato leaf roller.

Description

Technical Field

[0001] This utility model relates to the field of tomato leafminer control technology, specifically a green control device for tomato leafminer. Background Technology

[0002] The tomato leafminer (Tuta absoluta) is a major global pest of tomatoes, belonging to the family Diplodocidae in the order Lepidoptera. Native to Peru in western South America, the tomato leafminer primarily feeds on Solanaceae plants, with a particular preference for tomatoes. The larvae burrow into leaves, tender stems, buds, and fruits to feed. On leaves, the larvae bore into the leaf tissue, creating irregular, winding tunnels, which can cause the leaves to wrinkle and dry out in severe cases. Damage to the stems can stunt plant growth and even cause lodging. Feeding on fruits causes holes and rot, affecting the quality and commercial value of the fruit.

[0003] To control tomato leafminer, the main methods are currently divided into chemical control and physical control. Chemical control relies on highly toxic pesticides, which can easily lead to pesticide residues, resistance, and ecological damage. Although non-toxic tomato leafminer repellents have now emerged, such as the one disclosed in paragraph 0034 of the instruction manual of CN116548438B: "(E,E)". 2,4 Nonadienal and trans 2 Nonenal, an active substance that can be recognized and repelled by the tomato leafminer, can be used as an alternative to traditional chemical pesticides for controlling tomato leafminer. It is safe for tomatoes and other crops and does not induce pesticide resistance in the pest. (E,E) 2,4 Nonadienal and trans 2 Nonenal, as a natural metabolite, has a complete degradation pathway in nature, does not pollute the environment, is green and safe, harmless to humans and animals, and poses no risk of drug resistance. However, this repellent, when sprayed, has a volatilization time, requiring repeated application after the effect has dissipated, which is cumbersome. Physical control, as disclosed in section 0025 of the instruction manual CN120713014A, involves inserting multiple ground tubes into the corresponding soil. Since top strips are installed between two ground tubes via support springs, these top strips are placed on the tomato seedlings. Then, an insect-proof net is placed on the top strips, and the outer wheel is pressed against the lateral strips on both sides of the net, thus ensuring protection. While existing technologies use insect-proof nets that can prevent adult insects from eating solanaceous fruits after a single installation, the perforated nets cannot prevent larvae from crawling inside or directly eating the stems of solanaceous seedlings. Furthermore, existing insect-proof nets and their structures are not reusable. Although the aforementioned technical solutions do not specify materials, metal would be too heavy, so only plastic can be used to ensure rigidity and prevent corrosion. However, the springs and elastic rods must be metal for support. In actual use, rainwater and sun exposure will inevitably cause the metal to corrode and dissolve into the soil. Over time, the plastic parts will also become brittle and separate into the soil, creating white pollution and metal pollution. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a green control device for tomato leafminer, which can comprehensively control tomato leafminer from the stems to the leaves of solanaceous plants. The control device is green and environmentally friendly, and degrades directly into the soil after use without causing pollution, thus solving the above-mentioned technical problems.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a green control device for tomato leafminer, comprising an outer shell placed on the soil surface between solanaceous plants, a hollow tube extending downward into the top surface of the outer shell, a cotton net or cardboard connected to the top side wall of the hollow tube to form a movable connection with the top surface of the outer shell, a water ball containing a tomato leafminer repellent is provided below the hollow tube and at the bottom of the inner side of the outer shell, and a volatilization structure is connected to the outside of the water ball for evaporating the tomato leafminer repellent to the outside of the outer shell; Includes a frame, which is circular or rectangular and surrounds the water sphere; It also includes a slug plate, which is installed on the bottom surface of the outer casing and communicates with its interior. The slug plate itself has through holes in a matrix shape.

[0006] As a preferred embodiment of this utility model, the outer shell, hollow tube, cardboard, frame, and sprue are all made of corrugated paper.

[0007] As a preferred technical solution of this utility model, the water balloon is a natural latex balloon or made of sodium alginate and calcium carbonate, and the water balloon is fully wrapped with tomato leafminer repellent.

[0008] As a preferred embodiment of this utility model, the cardboard is a four-sided pyramid shape with an upward convex shape, and the center of the cardboard is penetrated by a hollow tube, and the two are fixedly bonded together with glue.

[0009] As a preferred technical solution of this utility model, the evaporation structure also includes a base, which is a plate with gaps formed by multiple rods arranged at intervals. The base is fixedly connected to the bottom of the inner side of the frame by glue, and the top surface directly contacts the bottom surface of the water ball.

[0010] As a preferred technical solution of this utility model, the outer shell is a long rectangular cube, the hollow tubes are multiple and spaced apart, and there are also multiple water balls corresponding to the hollow tubes. The top surface of the outer shell has a through opening, and a cotton net is fixedly connected inside the opening. A gasket is also fixedly installed at the connection between the bottom surface of the cotton net and the hollow tube on the inner side of the outer shell. The cotton net and the hollow tube are fixedly connected to the top and bottom of the gasket with glue, respectively.

[0011] As a preferred technical solution of this utility model, the evaporation structure further includes a support plate disposed on the bottom surface of the frame. The support plate is fixedly connected to the bottom surface of the frame, and its central two-thirds area is hollowed out. The hollowed-out part connects the bottom surface of the water ball with the space below the inner side of the shell. A guide plate is also installed directly below the support plate and located at the bottom of the inner side of the shell. The guide plate is a semi-circular plate with the opening facing upward and aligned with the water ball. The guide plate is also made of corrugated paper and its two ends are fixedly connected to the front and rear walls of the inner side of the shell by glue.

[0012] Compared with the prior art, this utility model provides a green control device for tomato leafminer, which has the following beneficial effects: 1. This utility model involves placing the outer shell directly on the ground between two solanaceous plants or burying it 2-4cm below the surface. When needed, the cardboard is pressed down, causing the hollow tube at the bottom to move downwards and pierce the water balloon. As the water balloon is pierced, the hollow tube passes directly through the water balloon until it reaches the bottom base. The water balloon, pierced on both sides, then begins to exude a liquid containing tomato leafminer repellent. Because the outer shell is made of corrugated cardboard, which is porous, the liquid containing tomato leafminer repellent flows along the bottom base to the inner surface of the outer shell and then directly seeps out into the soil. As the liquid containing tomato leafminer repellent comes into contact with the soil, it begins to volatilize. The volatilized tomato leafminer repellent directly covers the entire solanaceous plant from bottom to top, achieving the advantage of comprehensive control of tomato leafminer from the stem to the leaves.

[0013] 2. This utility model uses corrugated paper to make the main structure, which is extremely low cost. At the same time, all structures are made of green, environmentally friendly and biodegradable materials. Compared with spraying tomato leafminer repellent, it saves energy and lasts longer. Compared with physical barriers, it is not only low cost, but can also be used directly as fertilizer to compost the soil after use. It achieves the advantages of green and environmentally friendly control device, which degrades directly into the soil after use without causing pollution. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic cross-sectional view of the outer shell structure according to Embodiment 1 of this utility model; Figure 3 This is a front sectional view of the frame structure according to Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the overall shell structure of Embodiment 2 of this utility model; Figure 5 This is a cross-sectional view of the outer shell structure of Embodiment 2 of this utility model; Figure 6 This is a cross-sectional view of the frame structure of Embodiment 2 of this utility model.

[0015] The components are: 1. Outer shell; 101. Hollow insert; 102. Cotton net; 103. Cardboard; 2. Water balloon; 3. Frame; 301. Base support; 302. Support plate; 4. Drain plate; 401. Through hole; 5. Gasket; 6. Guide plate. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figure 1-6 A green control device for tomato leafminer includes an outer shell 1 placed on the soil surface between solanaceous plants. A hollow tube 101 extending downward into the top surface of the outer shell 1 is provided. A cotton net 102 or cardboard 103 is connected to the top side wall of the hollow tube 101 to form a movable connection with the top surface of the outer shell 1. A water ball 2 containing a tomato leafminer repellent is provided below the hollow tube 101 and at the bottom of the inner side of the outer shell 1. A volatilization structure is connected to the outside of the water ball 2 to allow the tomato leafminer repellent to volatilize to the outside of the outer shell 1. Includes frame 3, which is a circle or rectangle that surrounds the water sphere 2; It also includes a slug plate 4, which is installed on the bottom surface of the outer casing 1 and communicates with its interior. The slug plate 4 itself has through holes 401 in a matrix shape.

[0020] Furthermore, the outer shell 1, hollow tube 101, cardboard 103, frame 3, and stencil 4 are all made of corrugated paper.

[0021] As per the instruction manual Figure 1-6As shown, the outer shell 1, hollow tube 101, cardboard 103, frame 3, and stencil 4 are prepared by using corrugated paper. The above structure does not require continuous and repeated deformation, movement, or folding and is only for single use. Corrugated paper is mainly made of natural plant fibers such as wood, bamboo, and reeds. These plant fibers are essentially carbohydrates composed of elements such as carbon, hydrogen, and oxygen, which are common organic substances in nature. After the device is used, it can be directly discarded into the soil. Bacteria and fungi in the soil can gradually decompose the cellulose, hemicellulose, and lignin in the corrugated paper, eventually converting them into carbon dioxide, water, and humus, which is beneficial to soil composting. It can not only control tomato leafminer but is also green and environmentally friendly. This application only limits the structure to existing materials rather than making improvements to existing materials.

[0022] Furthermore, Water Balloon 2 is a natural latex balloon or made of sodium alginate and calcium carbonate, and Water Balloon 2 is fully encapsulated with tomato leafminer repellent.

[0023] Furthermore, the natural latex balloon is made from the latex of natural rubber trees and is a ready-made product that can be purchased directly. The model number is M-C8058. It is also a green material. In actual use, microorganisms in the soil will gradually decompose the organic components in the latex and eventually convert them into harmless substances such as carbon dioxide and water. The whole process takes six months to a year.

[0024] Furthermore, the preparation method of using calcium carbonate and sodium alginate to make water-encapsulated balls is prior art. The method of making water balls is a publicly available technology on the Internet, such as the prior art with the specification publication number CN 114313340 B, or the article "Edible Water Balls: Environmental Protection Practice and Innovation Experiment" which has disclosed its preparation process. This application simply applies it directly. The specific production steps are only to replace the purified water in the existing steps with the tomato leafminer repellent with the publication number CN116548438B cited in this application. The concentration of the tomato leafminer repellent is 0.5-2g / L. The above formula did not produce any unexpected results, but only a change in physical form. Therefore, there is no improvement to the formula. As per the instruction manual Figure 2 As shown, sodium alginate is a natural polysaccharide. When it comes into contact with calcium ions released from calcium carbonate in solution, an ion exchange reaction occurs. Sodium ions on the sodium alginate molecular chain exchange with calcium ions to form an insoluble calcium alginate gel network structure, thereby encapsulating water and forming a water sphere shape. The preparation principle of water sphere 2 is a very mature application technology. This application is just a direct application. Similarly, the tomato leafminer repellent is the repellent disclosed in CN116548438B. This repellent is also a harmless green agent and will not cause resistance in solanaceous plants. This application has not improved this agent and is also a direct application.

[0025] Furthermore, the cardboard 103 is a four-sided pyramid shape with an upward protrusion. The center of the cardboard 103 is penetrated by the hollow insert 101, and the two are fixedly bonded together with glue. The evaporation structure also includes a base 301, which is a plate with gaps formed by multiple rods arranged at intervals. The base 301 is fixedly connected to the bottom of the inner side of the frame 3 with glue, and its top surface directly contacts the bottom surface of the water ball 2.

[0026] Furthermore, the outer shell 1 is a long rectangular cube, and there are multiple hollow insertion tubes 101 installed at intervals. There are also multiple water balloons 2 corresponding to the hollow insertion tubes 101. The top surface of the outer shell 1 has a through opening, and a cotton net 102 is fixedly connected inside the opening. A gasket 5 is also fixedly installed at the connection between the bottom surface of the cotton net 102 and the hollow insertion tube 101 on the inner side of the outer shell 1. The upper and lower surfaces of the gasket 5 are fixedly connected to the cotton net 102 and the hollow insertion tube 101 by glue.

[0027] The evaporation structure also includes a support plate 302 set on the bottom surface of the frame 3. The support plate 302 is fixedly connected to the bottom surface of the frame 3, and its central two-thirds area is hollowed out. The hollowed-out part connects the bottom surface of the water ball 2 with the space below the inner side of the outer shell 1. A guide plate 6 is also installed directly below the support plate 302 and located at the bottom of the inner side of the outer shell 1. The guide plate 6 is a semi-circular plate with the opening facing upward and aligned with the water ball 2. The guide plate 6 is also made of corrugated paper and its two ends are fixedly connected to the front and rear walls of the inner side of the outer shell 1 by glue.

[0028] Furthermore, the adhesive used in this application is a gelatin adhesive, with CAS number 9000-70-8; its molecular formula is C6H12O6 or it is a polylactic acid (PLA) based adhesive. Both gelatin adhesive and PLA-based adhesive are biodegradable adhesives. PLA-based adhesive will decompose into water and carbon dioxide in the natural environment within six months.

[0029] Add calcium carbonate to the aqueous solution containing tomato leafminer repellent at a concentration of 0.5-2 g / L in a container, and dissolve it in water and sodium alginate in the corresponding proportion in another container. Then, use a container to hold the solution containing calcium carbonate and tomato leafminer repellent and place it into a solution of sodium alginate and water to form a package. In this application, the shape of the water ball 2 is not limited; both spheres and cubes are acceptable.

[0030] Example 1 In this embodiment, the outer shell 1 is placed directly on the ground between two solanaceous plants or buried 2-4 cm below the surface. Then, when needed, the cardboard 103 is pressed down directly, as per the instruction manual. Figure 1-2As shown, the cardboard 103 is an upwardly convex four-sided pyramid with length and space for downward deformation. As the cardboard 103 is pressed down, the hollow tube 101 at its bottom is moved downward and then contacts the water ball 2, piercing it. Since the water ball 2 is formed by the ion exchange of sodium alginate and calcium carbonate, this invention does not modify the formula but simply applies it directly. The water ball is also a biodegradable green material and will not cause white pollution due to non-degradation after being punctured. As the water ball 2 is pierced through the hollow tube 101, it passes straight through the water ball until it contacts the bottom tray 301. Then, the water ball 2, which is pierced on both the top and bottom, begins to seep out a liquid containing tomato leafminer repellent. Because the outer shell 1 is a corrugated cardboard structure, and corrugated cardboard is porous... The structure involves an aqueous solution containing a tomato leafminer repellent flowing down the base 301 to the inner bottom surface of the outer shell 1. After passing through the perforated plate 4 with holes 401, the solution seeps directly outward and comes into contact with the soil. As the aqueous solution containing the tomato leafminer repellent comes into contact with the soil, it begins to evaporate. The evaporated components containing the tomato leafminer repellent directly cover the entire solanaceous plant from bottom to top. Since the aqueous solution containing the tomato leafminer repellent seeps into the soil and evaporates naturally, its area is large enough to spread to multiple nearby solanaceous plants. Furthermore, the corrugated paper porous outer shell 1 can store a portion of the aqueous solution containing the tomato leafminer repellent, allowing it to evaporate slowly over a period of 2-3 days. The duration of a single application exceeds that of direct pesticide spraying.

[0031] When using, place the outer shell 1 directly on the ground between two nightshade plants or bury it 2-4cm below the surface. Then, when needed, press the cardboard 103 downwards. As the cardboard 103 is pressed down, the hollow tube 101 at the bottom is moved downwards and contacts the water balloon 2, piercing it. As the water balloon 2 is pierced, the hollow tube 101 passes straight through the water balloon until it contacts the base 301. Then, the water balloon 2, pierced on both sides, begins to exude a liquid containing tomato leafminer repellent. The outer shell 1 is a corrugated paper structure, which is porous. The liquid containing tomato leafminer repellent flows along the bottom tray 301 to the inner bottom surface of the outer shell 1 and then seeps out directly into the soil. As the liquid containing tomato leafminer repellent comes into contact with the soil, it begins to volatilize. The volatilized components containing tomato leafminer repellent directly cover the entire solanaceous plant from bottom to top. Since the liquid containing tomato leafminer repellent seeps into the soil and volatilizes naturally, its area is large enough to spread to multiple nearby solanaceous plants.

[0032] Example 2 In Example 1, pressing the hollow tube 101 punctures the water balloon 2, causing the liquid containing tomato leafminer repellent inside to come into contact with the soil and begin to volatilize, thus controlling the tomato leafminer. Furthermore, because the structure is made of corrugated cardboard, it has a green and recyclable effect. However, Example 1 has a limited area, and each time a water balloon 2 is punctured, it is equivalent to discarding one outer shell 1, making it unusable continuously. Compared with frequent spraying of liquid containing tomato leafminer repellent, it does not have a significant advantage. Therefore, this example is proposed: By directly setting the outer shell 1 to a long strip shape, the strip-shaped outer shell 1 is placed between two rows of nightshade plants. Then, the original cardboard 103 is replaced with a cotton net 102, which is woven from natural cotton wadding. The cotton net 102 directly connects the inner and outer sides of the outer shell 1. Then, the steps of Embodiment 1 are repeated, and the cotton net 102 is directly pressed so that the pad 5 connected below it drives the hollow insertion tube 101 to insert into the water balloon 2 and pierce it. The water balloon 2 with its back pierced exposes the liquid containing tomato leafminer repellent inside. At the same time, under the influence of gravity, the liquid containing tomato leafminer repellent will flow down from the hollow area of ​​the tray 302 into the interior of the guide plate 6, as shown in the instruction manual. Figure 5 As shown, the guide plate 6 has a semi-circular concave structure, so the liquid containing tomato leafminer repellent flowing here will flow evenly to every part of the guide plate 6. Then, because the cotton net 102 is directly above the guide plate 6, the liquid containing tomato leafminer repellent can directly evaporate upwards. At the same time, the guide plate 6 is made of corrugated cardboard, and the liquid containing tomato leafminer repellent will also seep out to the drain plate 4 below, allowing it to seep into the soil below and evaporate. In addition, in the attached drawings not shown in this specification, the guide plate 6 can also be directly glued to the top of the drain plate 4, thus preventing the guide plate 6 from falling off. Due to this structural improvement... It is very simple, so it is not shown in the attached diagram. The same guide plate 6 will get wet after being soaked in water, but its decomposition cycle is half a year. Therefore, it will not rot and lose its effect before multiple water balls 2 are punctured. Then, whenever the previous water ball seeps out water containing tomato leafminer repellent and expires, the next water ball 2 is punctured to continue to evaporate and control tomato leafminer. The main structure of this application is made of corrugated paper, which is extremely low cost. At the same time, all structures are green, environmentally friendly and biodegradable materials. Compared with spraying tomato leafminer repellent, it saves energy and lasts longer. Compared with physical barriers, it is not only low in cost, but can also be used directly as fertilizer to compost the soil after use.

[0033] In use, the strip-shaped outer shell 1 is placed between two rows of nightshade plants. The cotton net 102 is pressed down so that the pad 5 connected below it drives the hollow tube 101 to insert into the water balloon 2, piercing it. The pierced water balloon 2 then exposes the liquid containing tomato leafminer repellent inside. At the same time, due to gravity, the liquid containing tomato leafminer repellent will flow down from the hollow area of ​​the tray 302 into the guide plate 6. The liquid containing tomato leafminer repellent flowing here will flow evenly to every part of the guide plate 6. Then, since the cotton net 102 is directly above the guide plate 6, the liquid containing tomato leafminer repellent can directly evaporate upwards. At the same time, the guide plate 6 is made of corrugated paper, and the liquid containing tomato leafminer repellent will also seep out to the perforated plate 4 below, allowing it to seep into the soil below and evaporate. Then, whenever the liquid containing tomato leafminer repellent seeps out of the previous water balloon and evaporates, the next water balloon 2 is pierced to continue evaporating and controlling tomato leafminer.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A green control device for tomato leafminer, comprising a shell (1) placed on the soil surface between solanaceous plants, characterized in that: The top surface of the outer shell (1) is provided with a hollow tube (101) extending downward into its interior. The top side wall of the hollow tube (101) is connected to a cotton net (102) or cardboard (103) to form a movable connection with the top surface of the outer shell (1). Below the hollow tube (101) and located at the bottom of the inner side of the outer shell (1), a water ball (2) containing a tomato leafminer repellent is provided. The outside of the water ball (2) is connected to a volatilization structure for evaporating the tomato leafminer repellent to the outside of the outer shell (1). Includes a frame (3), which is circular or rectangular and surrounds the water sphere (2); It also includes a slug plate (4), which is installed on the bottom surface of the outer shell (1) and communicates with its interior. The slug plate (4) itself has through holes (401) in a matrix shape.

2. The green control device for tomato leafminer according to claim 1, characterized in that: The outer shell (1), hollow tube (101), cardboard (103), frame (3) and stencil (4) are all made of corrugated paper; The water balloon (2) is a natural latex balloon or made of sodium alginate and calcium carbonate, and the water balloon (2) is fully encapsulated with tomato leafminer repellent.

3. The green control device for tomato leafminer according to claim 2, characterized in that: The cardboard (103) is a four-sided pyramid shape with an upward protrusion. The center of the cardboard (103) is penetrated by a hollow tube (101), and the two are fixedly bonded together with glue.

4. The green control device for tomato leafminer according to claim 3, characterized in that: The evaporation structure also includes a base (301), which is a plate with gaps formed by multiple rods arranged at intervals. The base (301) is fixedly connected to the bottom of the inner side of the frame (3) by glue, and its top surface directly contacts the bottom surface of the water ball (2).

5. The green control device for tomato leafminer according to claim 2, characterized in that: The outer shell (1) is a long cube. There are multiple hollow tubes (101) installed at intervals. There are also multiple water balls (2) corresponding to the hollow tubes (101). The top surface of the outer shell (1) has a through opening, and a cotton net (102) is fixedly connected inside the opening. A gasket (5) is also fixedly installed at the connection between the bottom surface of the cotton net (102) on the inner side of the outer shell (1) and the hollow tube (101). The upper and lower surfaces of the gasket (5) are fixedly connected to the cotton net (102) and the hollow tube (101) by glue.

6. The green control device for tomato leafminer according to claim 5, characterized in that: The evaporation structure also includes a support plate (302) set on the bottom surface of the frame (3). The support plate (302) is fixedly connected to the bottom surface of the frame (3), and its central two-thirds area is hollowed out. The hollowed-out part connects the bottom surface of the water ball (2) with the space below the inner side of the shell (1). A guide plate (6) is also installed directly below the support plate (302) and located at the bottom of the inner side of the shell (1). The guide plate (6) is a semi-circular plate with the opening facing upward and aligned with the water ball (2). The guide plate (6) is also made of corrugated paper and its two ends are fixedly connected to the front and rear walls of the inner side of the shell (1) by glue.

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