A release device for a parasitic enemy of the fall armyworm

Abstract

The utility model discloses a release device of the parasitic natural enemy of malacosoma neustria, which comprises a release box for containing the parasitic natural enemy of malacosoma neustria, a box body made of non-transparent material, and a rain cover made of light-transmitting material and buckled on the release box. The release device has the advantages of simple structure, portability, easy use, reduced installation and operation steps, and improved efficiency of the release of the parasitic natural enemy of malacosoma neustria in the forest.

Description

Technical Field

[0001] This utility model belongs to the technical field of release devices for parasitic natural enemies of the fall webworm, specifically relating to a release device for parasitic natural enemies of the fall webworm. Background Technology

[0002] The fall webworm (Russula versicolor) is native to North America. In its native habitat, its population is relatively low due to the combined control of numerous natural enemies at various stages, preventing it from becoming a major pest. However, after being introduced out of its native range, the population has remained high due to the escape from the control of native predators and the delayed action of natural enemies in the invasive environment. To address the serious damage caused by the fall webworm, research has developed natural enemy insects targeting different developmental stages of the fall webworm, including egg, larval, and pupal stages, through field surveys and indoor breeding. These insects have been gradually released into the wild for pest control effectiveness evaluation and practical application. However, compared to the relatively mature parasitic wasp release devices and methods used in agriculture to target paddy field pests, the field application of parasitic natural enemies (parasitic wasps and parasitic flies) for forestry pests, especially newly invasive pests, is less common, and related release devices are less developed and their actual effectiveness varies.

[0003] Currently, there are only a few release devices for parasitic wasps targeting the fall webworm, and their shapes can be roughly divided into three categories: spherical, square, and funnel-shaped. For example, existing technology patent (patent number: CN201821802768.0): A spherical wasp release device suitable for forest pest control (e.g.) Figure 3 This device is similar to a parasitic wasp release device for paddy field pests, comprising a supporting hemisphere and a releasing hemisphere. The supporting hemisphere has a cylindrical support column at its bottom, with several drainage holes at the bottom periphery of the column's base. The upper end of the support column has a staggered rectangular tooth structure, forming a grid-like pattern of wasp exit holes when combined with the supporting hemisphere. The releasing hemisphere has several evenly distributed circular wasp exit holes on its shell, and a hook is provided at the top of its outer shell. Prior art patent (patent number: CN202411826743.4): A parasitic wasp release device and release method (e.g.) Figure 4 The device has a complex structure, comprising a top area consisting of a first top plate, a second top plate, and side sealing plates, and a placement area consisting of a first side plate, a second side plate, a third side plate, a fourth side plate, and a bottom plate. The release device has ventilation holes and release holes, and creases are provided between the plates. It requires on-site assembly during use. Existing technology patent (patent number: CN202510463526.1): A multi-functional device for controlling the fall webworm and releasing parasitic wasps (such as...). Figure 5This device is a modification of the original American white moth trap. It consists of four parts: a funnel, a mounting plate, a collection bucket, and a small wasp cocoon holder. The side wall of the funnel has an inwardly recessed groove, and the side wall of the groove has several evenly distributed holes. The mounting plate is fixedly installed on the periphery of the funnel, and the collection bucket is movably installed on the lower side of the mounting plate. The funnel and the inside of the collection bucket are connected. The small wasp cocoon holder is movably installed on the lower side of the collection bucket.

[0004] However, existing bee release devices generally suffer from the following problems: the limited number and size of ventilation holes and / or bee release holes make it impossible to ensure sufficient light enters the release area, resulting in low release efficiency; the design only considers relatively small parasitic wasps and is not suitable for larger parasitic flies. In addition, some devices have complex structures that require on-site assembly, which is time-consuming, labor-intensive, and significantly reduces their effectiveness. For example, the aforementioned prior art patent 1, "A spherical wasp release device suitable for forest pest control," has problems such as poor light transmission and inapplicability to parasitic fly natural enemies. Furthermore, the overall spherical shape of the device makes it difficult to maintain stability when suspended on tree trunks due to its inability to fit tightly vertically against the trunk. Prior art patent 2, "A parasitic wasp release device and release method," consists of multiple panels of different sizes, requiring on-site learning of the assembly method. Prior art patent 3, "A multi-functional device for controlling the fall webworm with dual trapping and parasitic wasp release," combines solar-powered LED lights and pheromones, thus also trapping adult insects. However, the overall device occupies a large area, is inconvenient to carry, and the height and position of the small wasp cocoon holder are fixed, making it difficult to simultaneously meet the release requirements of parasitic natural enemies of pests at different stages and locations of damage.

[0005] Therefore, there is a need to develop a device for releasing parasitic natural enemies of the fall webworm that is easy to operate, has a wide range of applications, and provides stable and effective results. Utility Model Content

[0006] Therefore, this utility model provides a release device for parasitic natural enemies of the fall webworm, which can solve the problems of complex manufacturing and inconvenience in carrying existing release devices for parasitic natural enemies of the fall webworm.

[0007] To address the aforementioned problems, this invention provides a release device for a parasitic natural enemy of the fall webworm, comprising:

[0008] Release box, used to hold the parasitic natural enemies of the American white moth; the release box includes a box body made of non-transparent material, the top of the box body is hollowed out; the box body (3) is composed of a cylindrical body that runs through the top and bottom and a bottom cover (6);

[0009] The rain cover (2) is made of a light-transmitting material and is placed on top of the release box at intervals. The rain cover (2) includes a cover plate, and a plurality of spaced support columns (4) are provided between the cover plate and the upper edge of the release box. The periphery of the cover plate extends downward to form a bent part. The height of the bent part is greater than the distance between the cover plate and the release box.

[0010] The release device also includes a hook (1) and a connector, wherein the hook (1) is connected to the rain cover (2) via the connector.

[0011] In some implementations...

[0012] The bottom of the box is provided with multiple water-repellent holes, which are evenly distributed.

[0013] In some implementations...

[0014] The box body consists of a cylindrical body that runs vertically through the top and bottom and a bottom cover, with the bottom cover being movably fastened to the bottom end of the cylindrical body.

[0015] In some implementations...

[0016] The bottom surface of the cover has a downwardly extending flange around its perimeter.

[0017] In some implementations...

[0018] The cylinder is a cylindrical body, and the inner diameter of the upper end of the cylinder is smaller than the inner diameter of the lower end.

[0019] In some implementations...

[0020] The height of the support column is set to 1 / 3 to 1 / 2 of the height of the bent part.

[0021] In some implementations...

[0022] The height of the support column is set to 0.3cm-0.8cm.

[0023] In some implementations...

[0024] The connector may be a straight rod or a rope.

[0025] This utility model has the following beneficial effects:

[0026] The release box features a rain cover with a buckle on top, making it simple in construction, compact, and easy to carry. It can be used immediately and greatly reduces the steps required for field installation and operation, significantly improving the efficiency of releasing parasitic natural enemies of the fall webworm in the forest. Attached Figure Description

[0027] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the release device for the parasitic natural enemy of the American white moth, according to an embodiment of the present invention.

[0029] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the structure with the bottom cover open.

[0030] Figure 3 This is a schematic diagram of a spherical bee release device in the prior art.

[0031] Figure 4 This is a schematic diagram of a square bee release device in the prior art.

[0032] Figure 5 This is a diagram of a conventional American white moth trapping and parasitic wasp release device.

[0033] The reference numerals in the attached figures are as follows:

[0034] 1. Hook; 2. Rain cover; 3. Box body; 4. Support column; 5. Box opening; 6. Bottom cover. Detailed Implementation

[0035] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0036] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0037] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0038] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0039] See also Figures 1 to 2 As shown, according to an embodiment of the present invention, a release device for a parasitic natural enemy of the fall webworm includes:

[0040] A release box is used to hold the parasitic natural enemies of the American white moth; the release box includes a box body 3 made of non-transparent material, and the top of the box body 3 is hollowed out;

[0041] Rain cover 2, made of a light-transmitting material, is spaced out and fastened over the release box.

[0042] The release box has a hollowed-out top structure, forming the box opening 5. The entire box body 3 is made of non-transparent material. When the box body 3 contains parasitic natural enemies of the fall webworm, the phototaxis of the parasitic natural enemies ensures that these natural enemies only fly out of the box body 3 from the top box opening 5.

[0043] A rain cover 2 is placed over the release box to prevent rainwater from entering the box body 3 through the opening 5. The rain cover 2 is made of transparent material, which allows light to enter the box body 3 through the opening 5, so that these predators can fly out of the opening 5.

[0044] Both the aforementioned opaque and transparent materials can be made of plastic, which is lightweight and not easily damaged. Transparent plastics include polymethyl methacrylate, polycarbonate, and polystyrene, while opaque plastics include ABS (acrylonitrile-butadiene-styrene copolymer) plastic and ABS light-blocking material.

[0045] In some implementations...

[0046] The bottom of the box 3 is provided with multiple water-repellent holes, which are evenly distributed.

[0047] Evenly distributed hydrophobic holes are provided at the bottom of the box 3 to drain the water inside the box 3, but these hydrophobic holes can prevent parasitic predators from passing through.

[0048] In some implementations...

[0049] The box body 3 consists of a cylindrical body that runs vertically through the top and bottom and a bottom cover 6, with the bottom cover 6 being movably fastened to the bottom end of the cylindrical body.

[0050] The box body 3 is composed of a movably connected cylindrical body and a bottom cover 6. The cylindrical body is through from top to bottom, the bottom cover 6 is fastened to the bottom of the cylindrical body, and the corresponding rain cover 2 is fastened to the top of the cylindrical body to form the entire release device.

[0051] In the structure where the bottom of the box 3 has a water-draining hole, the water-draining hole is located on the bottom cover 6; by opening the bottom cover 6, the parasitic natural enemy can be placed inside the box 3, and then the bottom cover 6 can be closed again, and the entire release device can be placed in the forest.

[0052] The aforementioned active fastening includes the bottom cover 6 being threaded to the bottom end of the cylinder, or being snapped together, forming a sealed connection between the two to prevent rainwater from seeping into the box 3 along the connection.

[0053] In some implementations...

[0054] The bottom cover 6 has a downwardly extending flange around its bottom surface.

[0055] To prevent rainwater from entering the box body 3 along the bottom cover 6, a downward-extending flange is provided around the bottom edge of the bottom cover 6 to prevent rainwater from blocking the drainage holes along the bottom surface.

[0056] In some implementations...

[0057] The cylinder is a cylindrical body, and the inner diameter of the upper end of the cylinder is smaller than the inner diameter of the lower end.

[0058] The cylinder has a structure that is thinner at the top and thicker at the bottom. After the bottom cover 6 is opened, parasitic natural enemies can be placed into the cylinder. The large bottom opening makes the placement operation relatively convenient.

[0059] In some implementations...

[0060] The rain cover 2 includes a cover plate, the periphery of which extends downward to form a bent portion; the height of the bent portion is greater than the distance between the cover plate and the release box.

[0061] The rain cover 2 mainly adopts a cover plate structure with a lower perimeter. The corresponding cylinder is a cylindrical structure, and the cover plate is a round plate. The bent part extends downward to form a cover body, which is fastened on the release top to block rain or debris.

[0062] This utility model limits the height of the bending part to be greater than the distance between the cover plate and the release box, so that the lower edge of the bending part is lower than the box opening 5 of the release box, reducing the probability of rainwater entering the box body 3 through the box opening 5.

[0063] In some implementations...

[0064] A plurality of spaced support columns 4 are provided between the cover plate and the upper edge of the release box, and the height of the support column 4 is set to 1 / 3-1 / 2 of the height of the bent part.

[0065] This utility model provides a support column 4 between the upper edge of the cover plate and the release box. Multiple support columns 4 are spaced apart to connect the cover plate and the release box to form a whole. The connection can be welding or threaded connection.

[0066] The height of the support column 4 is equivalent to the distance between the cover plate and the release box, which is 1 / 3 to 1 / 2 of the height of the bend. This can prevent rainwater from entering the opening 5 of the release box and ensure that parasitic predators can fly away through this gap.

[0067] In some implementations...

[0068] The height of the support column 4 is set to 0.3cm-0.8cm.

[0069] More specifically, the height of the support column 4 is set at 0.3cm-0.8cm, which is greater than the height of the parasitic natural enemy, thus blocking some larger insects and preventing them from entering the release box.

[0070] In some implementations...

[0071] The release device also includes a hook 1 and a connector, wherein the hook 1 is connected to the rain cover 2 via the connector.

[0072] The release device of this utility model is also provided with a hook 1, which is connected to the rain cover 2 through a connector. The hook 1 is convenient to be hooked on the branches or trunk, and its specifications are basically consistent with the thickness of the branches or the thickness of the sprouts on the trunk, so as to maintain the stability of the hook.

[0073] In some implementations...

[0074] The connector may be a straight rod or a rope.

[0075] The connectors include straight rods or ropes, and the structure is simple and easy to carry.

[0076] Example 1

[0077] like Figure 1 As shown, the release device for parasitic natural enemies of the fall webworm of this invention includes a hook 1, a rain cover 2, and a release box. These three parts are connected to form a portable release device that can be used without assembly or splicing. The size of the hook 1 matches the thickness of the branches of the host plant damaged by fall webworm larvae in the wild, ensuring stability after hanging. The rain cover 2 is made of transparent material, with the top and bottom diameters being the same, both larger than the top and bottom diameters of the release box, thus maximizing its function of rain protection and light transmission. Furthermore, the equal width of the top and bottom of the rain cover 2 ensures that when the device is hung on a tree trunk to control fall webworm pupae, the sides of the device are in close contact with the vertical plane of the trunk, maintaining stability and preventing wobbling. The release box 3 has a completely open top, while other parts are made of opaque material. The bottom cover 6 has drainage holes of a specific size, further preventing water accumulation inside the box and ensuring that the fall webworm parasitic natural enemies can quickly fly out under light conditions, improving the release efficiency.

[0078] Example 2

[0079] This embodiment describes the use of the fall webworm parasitic natural enemy release device described in Embodiment 1. During the fall webworm adult oviposition period and before the larvae descend the tree to pupate, the pre-prepared fall webworm egg and / or larval natural enemies, along with the device, are brought to the affected forest. The bottom cover 6 of the release box is opened (e.g., ...). Figure 2 After placing the natural enemy inside the box and closing the bottom cover 6, the device hook 1 is then hung on the branch of the host plant. Similarly, when the American white moth is in its mature larval or pupal stage in the wild, the prepared natural enemies of the American white moth in its mature larval and pupal stages, along with the device, are brought to the forest. After placing the natural enemy inside the release box using the above method, the device is hung on the trunk at 1.3m and / or on the suckers at the base of the tree. If there are no suckers, toothpicks are inserted into the corresponding positions on the trunk for hanging the device.

[0080] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0081] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A release device for a parasitic natural enemy of the fall webworm, characterized in that, include: Release box for holding parasitic natural enemies of the American white moth; the release box includes a box body (3) made of non-transparent material, the top of the box body (3) is hollowed out; the box body (3) is composed of a cylindrical body that runs through the top and bottom and a bottom cover (6); The rain cover (2) is made of a light-transmitting material and is placed on top of the release box at intervals. The rain cover (2) includes a cover plate, and a plurality of spaced support columns (4) are provided between the cover plate and the upper edge of the release box. The periphery of the cover plate extends downward to form a bent part. The height of the bent part is greater than the distance between the cover plate and the release box. The release device also includes a hook (1) and a connector, wherein the hook (1) is connected to the rain cover (2) via the connector.

2. The release device according to claim 1, characterized in that: The bottom of the box (3) is provided with multiple hydrophobic holes, which are evenly distributed.

3. The release device according to claim 1 or 2, characterized in that: The bottom cover (6) is movably fastened to the bottom end of the cylinder.

4. The release device according to claim 3, characterized in that: The bottom surface of the bottom cover (6) is provided with a downwardly extending flange.

5. The release device according to claim 3, characterized in that: The cylinder is a cylindrical body, and the inner diameter of the upper end of the cylinder is smaller than the inner diameter of the lower end.

6. The release device according to claim 1, characterized in that: The height of the support column (4) is set to 1 / 3 to 1 / 2 of the height of the bent part.

7. The release device according to claim 6, characterized in that: The height of the support column (4) is set to 0.3cm-0.8cm.

8. The release device according to claim 1, characterized in that: The connector may be a straight rod or a rope.

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