Small pest slow-release trapping releaser and application thereof

Abstract

The invention discloses a small pest slow-release trapping releaser which sequentially comprises a hanging layer, a bonding layer, an isolating layer, a second slow-release layer and a sealing film from inside to outside. Wherein the bonding layer is respectively bonded with the hanging layer and the isolating layer; a first slow-release layer is placed in the isolation layer, the bottom is bonded with the bonding layer, and the top is covered by a second slow-release layer; and the sealing film covers the surface of the second slow-release layer. The double-slow-release-layer design is adopted for the first time, the pest attractant can be released stably, slowly, uniformly and controllably, the technical limitation that a single slow-release layer is unstable, non-uniform and uncontrollable is reduced to the maximum extent, influences of external environment conditions such as temperature, humidity and illumination are basically avoided, the effective lasting period can reach 120 days, hanging and tearing are conducted one time, operation is convenient, and cost is low. The problem that the pest attractant carrier is difficult to place is thoroughly solved. Moreover, the advantages of the sustained-release material can be efficiently exerted, the monitoring and prevention effects are achieved, the design is ingenious, the innovativeness is high, and the application prospect is wide.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural pest control, and more particularly to a small-sized pest slow-release attracting and releasing device and application thereof. Background Art

[0002] Pest attractants are used to lure and kill pests without contacting plants or agricultural products, leaving no pesticide residue. They are a preferred method for modern agricultural ecological pest control. During an infestation, attractant concentrations in the controlled area must be maintained at an appropriately high level for a period of time. The slow-release carrier of the attractant is key to ensuring stable and sustained release.

[0003] Currently, the attractant delivery products commonly used in the pest pheromone market primarily include slow-release capillaries, rubber tips, and some nanomaterials. However, the practical application of these products reveals that slow-release capillaries and rubber tips, when used as attractant delivery vehicles, release the attractant too quickly and exhibit poor stability. Their effective release period in the field is approximately 30 days, making them inadequate for field crop pest monitoring. Furthermore, nanomaterials are complex to prepare, difficult to store and transport, have unclear safety issues, and pose potential environmental risks.

[0004] Therefore, how to develop a novel slow-release trapping and releasing device for pests is a problem that those skilled in the art need to solve urgently. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a small-sized pest slow-release trap and releaser and its application to solve the deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A small-sized pest slow-release trapping and releasing device comprises, from the inside to the outside, a hanging layer, an adhesive layer, an isolation layer, a second slow-release layer and a sealing film;

[0008] Wherein, the adhesive layer is bonded to the suspension layer and the isolation layer respectively;

[0009] The first sustained-release layer is placed inside the isolation layer, adhered to the adhesive layer at the bottom, and covered with the second sustained-release layer at the top;

[0010] The sealing film covers the surface of the second sustained-release layer.

[0011] Furthermore, the suspension layer is in the shape of a card and is made of polylactic acid (PLA), polyhydroxyalkanoate (PHA), polybutylene succinate (PBS) or polycaprolactone (PCL), and a freely adjustable sliding buckle is extended outward from the top.

[0012] A further beneficial effect of the above method is that the hanging layer is made of an environmentally friendly biodegradable material. The buckle of the hanging layer can be connected to any other object (such as a trap) and can be adjusted according to the thickness of the attached object.

[0013] Furthermore, the adhesive layer is a double-sided adhesive.

[0014] A further beneficial effect of the above method is that one side of the adhesive layer is bonded to the bottom of the isolation layer, and the other side is bonded with the hanging layer.

[0015] Furthermore, the isolation layer is a box-shaped body, which is a rectangular parallelepiped or cylindrical, and is made of ethylene vinyl acetate copolymer (EVA), polyvinyl chloride (PVC) or polytetrafluoroethylene (PTFE), with a height of 0.5-1.5 cm and a thickness of 0.5-1.5 mm.

[0016] A further beneficial effect of the above method is that the material of the isolation layer has good sealing properties and is airtight, which has an isolation effect on the pest attractant in the first slow-release layer, preventing the pest attractant from penetrating, volatilizing and releasing.

[0017] Furthermore, the first sustained-release layer is composed of microcapsules containing pest attractants.

[0018] A further beneficial effect of the above-described method is that the first sustained-release layer, serving as the core release zone and composed of a sustained-release polymer, is the core for releasing the insect attractant. Encased within the isolation layer, it releases the attractant volatiles outward from this core and is then compositely connected to the second sustained-release layer, where they are further released outward. Furthermore, the microcapsule sustained-release material of the present invention has a long and stable duration, excellent film-forming properties, is safe and non-toxic, and is highly biodegradable, thus reducing the use of harmful solvents and environmental pollution.

[0019] Furthermore, the second sustained-release layer is made of polyethylene (PE) or high-density polyethylene (HDPE) with a thickness of 10-60 μm.

[0020] A further beneficial effect of this approach is that the second slow-release layer acts as a buffer release zone, further releasing the pest attractant released from the first slow-release layer. Furthermore, the release rate of the pest attractant can be appropriately controlled by adjusting the thickness of the second slow-release layer, depending on the target being monitored or controlled. For example, when the trap-release device is used for monitoring pest population levels, the thickness of the second slow-release layer can be increased to achieve long-term monitoring; whereas, when the trap-release device is used for pest control, the thickness of the second slow-release layer can be reduced to achieve rapid, short-term trapping and killing.

[0021] Furthermore, the sealing film is made of ethylene vinyl acetate copolymer (EVA), polyvinyl chloride (PVC) or polytetrafluoroethylene (PTFE), has a thickness of 80-120 μm, and has a tear-assisting layer extending outward from the top.

[0022] A further beneficial effect of the above method is that the sealing film has good sealing performance and is airtight, and is used to seal the pest attractant released by the second sustained-release layer. When in use, the sealing film can be directly torn off through the tear-assisting layer (tear area), which is convenient and quick.

[0023] Furthermore, the above-mentioned small-sized pest slow-release attractant and releaser is in the shape of a cuboid or a cylinder, and is covered with a waterproof isolation film layer on all sides.

[0024] Furthermore, the material of the waterproof isolation film layer is aluminum foil, aluminized film or a film with a barrier material coated on the surface.

[0025] Furthermore, the barrier material is silicon dioxide, aluminum oxide, polypropylene alcohol or polyacrylonitrile.

[0026] A further beneficial effect of the above method is that the waterproof isolation film layer can prevent the pest attractant from volatilizing and releasing in one step.

[0027] The present invention also seeks to protect the use of the small-sized pest slow-release trapping and releasing device in pest monitoring and pest control.

[0028] The use process of the small-scale pest slow-release attractant releaser of the present invention is as follows: first, hang the buckle of the hanging layer in the pest trap, and then tear open the sealing film, thereby opening the channel switch for releasing the pest attractant. The pest attractant is released from the first slow-release layer (core release layer), and then passes through the second slow-release layer (buffer release area). The release rate of the pest attractant can be appropriately controlled according to the thickness of the second slow-release layer, thereby achieving the purpose of pest monitoring and pest control for different field environments and host objects.

[0029] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] The present invention adopts sealing film to be pasted on the second slow-release layer for sealing, and is also covered with waterproof isolation film around the trapping releaser, so that the internal pest attractant can be isolated from the outside world. Before use, the pest attractant volatiles are always in sealed protection, isolated from the outside world, and will not cause the pest attractant volatilization to leak. When in use, the sealing film is torn off to expose the second slow-release layer. The second slow-release layer will play a buffering role for the pest attractant released by the first slow-release layer. The first slow-release layer is below the second slow-release layer. The first slow-release layer is the core body of the pest attractant release, and the pest attractant is evenly released outwards. At the same time, during the release process, the release can be more uniformly and controllably released under the buffering effect of the second slow-release layer, significantly increasing the effective duration of the pest attractant. In order to further effectively control the release speed of the trapping releaser, the thickness of the second slow-release layer can be adjusted for control. The thicker the second slow-release layer, the slower the release rate, and vice versa. The first slow-release layer and the second slow-release layer can ensure the uniform, stable and controllable release of the pest attractant, thereby achieving the maximum pest attracting effect.

[0031] The present invention's small-scale slow-release pest attractant releaser utilizes a dual-slow-release layer design for the first time, enabling stable, slow, uniform, and controllable release of the pest attractant. This minimizes the technical limitations of a single slow-release layer, which can be unstable, uneven, and uncontrollable. The device is essentially unaffected by external environmental conditions such as temperature, humidity, and light, boasting an effective duration of up to 120 days. Furthermore, the device can be easily attached and detached, making it portable and user-friendly, completely resolving the issue of difficult placement of the pest attractant carrier. Furthermore, the present invention's attractant releaser effectively leverages the advantages of the slow-release material, achieving both monitoring and control efficacy. Its ingenious design and innovative nature offer broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the structure of a slow-release trapping and releasing device for small pests;

[0034] Figure 2 This is a top view of a slow-release trap for small pests;

[0035] Figure 3 It is a structural diagram of the suspension layer;

[0036] Figure 4 is a cross-sectional view of the isolation layer, the first sustained-release layer, and the second sustained-release layer;

[0037] Figure 5Schematic diagram of the structure of the waterproof isolation film layer.

[0038] Among them, 1-suspension layer, 2-adhesive layer, 3-isolation layer, 4-first sustained-release layer, 5-second sustained-release layer, 6-sealing film, 7-clip, 8-tear-assisting layer, 9-waterproof isolation film layer. DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0044] Example 1

[0045] The small-sized pest slow-release trap and release device comprises, from the inside to the outside, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5 and a sealing film 6;

[0046] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0047] The first sustained-release layer 4 is placed inside the isolation layer 3, adhered to the adhesive layer 2 at the bottom, and covered with the second sustained-release layer 5 at the top;

[0048] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0049] The hanging layer 1 is in the shape of a card and is made of polylactic acid. A buckle 7 that can be freely adjusted and slidably extended from the top is provided.

[0050] The isolation layer 3 is a box-shaped body with a rectangular parallelepiped shape, made of ethylene-vinyl acetate copolymer, with a height of 0.5 cm and a thickness of 0.5 mm;

[0051] The first sustained-release layer 4 is composed of microcapsules containing pest attractants;

[0052] The second sustained-release layer 5 is made of polyethylene and has a thickness of 10 μm;

[0053] The sealing film 6 is made of ethylene-vinyl acetate copolymer, has a thickness of 80 μm, and has a tear-promoting layer 8 extending outward from the top;

[0054] The small-sized pest slow-release trapping and releasing device is in the shape of a cuboid, and is covered with a waterproof isolation film layer 9 on all sides, which is made of aluminum foil.

[0055] Example 2

[0056] The small-sized pest slow-release trap and release device comprises, from the inside to the outside, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5 and a sealing film 6;

[0057] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0058] The first sustained-release layer 4 is placed inside the isolation layer 3, adhered to the adhesive layer 2 at the bottom, and covered with the second sustained-release layer 5 at the top;

[0059] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0060] The hanging layer 1 is in the shape of a card and is made of polyhydroxyalkanoate. A buckle 7 that can be freely adjusted and slid extends outward from the top.

[0061] The isolation layer 3 is a box-shaped body with a rectangular parallelepiped shape, made of polyvinyl chloride, with a height of 0.8 cm and a thickness of 0.8 mm;

[0062] The first sustained-release layer 4 is composed of microcapsules containing pest attractants;

[0063] The second sustained-release layer 5 is made of polyethylene and has a thickness of 30 μm;

[0064] The sealing film 6 is made of polyvinyl chloride, has a thickness of 100 μm, and has a tear-assisting layer 8 extending outward from the top;

[0065] The small-sized pest slow-release trapping and releasing device is in the shape of a cuboid, and is covered with a waterproof isolation film layer 9 on all sides, which is made of aluminum-plated film.

[0066] Example 3

[0067] The small-sized pest slow-release trap and release device comprises, from the inside to the outside, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5 and a sealing film 6;

[0068] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0069] The first sustained-release layer 4 is placed inside the isolation layer 3, adhered to the adhesive layer 2 at the bottom, and covered with the second sustained-release layer 5 at the top;

[0070] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0071] The hanging layer 1 is in the shape of a card and is made of polybutylene succinate. A buckle 7 that can be freely adjusted and slid extends outward from the top.

[0072] The isolation layer 3 is a box-shaped body with a cylindrical shape, made of polytetrafluoroethylene, with a height of 1.0 cm and a thickness of 1.0 mm;

[0073] The first sustained-release layer 4 is composed of microcapsules containing pest attractants;

[0074] The second sustained-release layer 5 is made of high-density polyethylene and has a thickness of 40 μm;

[0075] The sealing film 6 is made of polytetrafluoroethylene, has a thickness of 110 μm, and has a tear-assisting layer 8 extending outward from the top;

[0076] The small-sized pest slow-release trapping and releasing device is cylindrical in shape and is covered with a waterproof isolation film layer 9 on all sides. The material is a film with a surface coated with silicon dioxide.

[0077] Example 4

[0078] The small-sized pest slow-release trap and release device comprises, from the inside to the outside, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5 and a sealing film 6;

[0079] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0080] The first sustained-release layer 4 is placed inside the isolation layer 3, adhered to the adhesive layer 2 at the bottom, and covered with the second sustained-release layer 5 at the top;

[0081] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0082] The hanging layer 1 is in the shape of a card and is made of polycaprolactone. A buckle 7 that can be freely adjusted and slid extends outward from the top.

[0083] The isolation layer 3 is a box-shaped body with a cylindrical shape, made of polytetrafluoroethylene, with a height of 1.5 cm and a thickness of 1.5 mm;

[0084] The first sustained-release layer 4 is composed of microcapsules containing pest attractants;

[0085] The second sustained-release layer 5 is made of high-density polyethylene and has a thickness of 60 μm;

[0086] The sealing film 6 is made of polytetrafluoroethylene, has a thickness of 120 μm, and has a tear-assisting layer 8 extending outward from the top;

[0087] The small-sized pest slow-release trapping and releasing device is cylindrical in shape and is covered with a waterproof isolation film layer 9 on all sides. The material is a film with aluminum oxide coated on the surface.

[0088] Comparative Example

[0089] The only difference from Example 1 is that the second sustained-release layer 5 is not included.

[0090] Performance Testing

[0091] 1. Indoor performance test

[0092] The pest slow-release trap and release device (double slow-release layer) from Example 1, the comparative example slow-release trap and release device (only the first slow-release layer), a commercially available PVC capillary slow-release attractant, and a commercially available rubber-tipped slow-release attractant were each sampled. Volatile odors of the pest attractants were collected using a solid-phase microextraction needle, and the residual pest attractant content was determined by gas chromatography. Measurements were taken every 3, 7, 14, 30, 60, and 120 days. The results are shown in Table 1.

[0093] Table 1 Indoor performance test results

[0094]

[0095] As shown in Table 1, the slow-release pest attractant releaser of Example 1 exhibited significantly better sustained-release effectiveness over 120 days than the comparative slow-release pest attractant releaser containing only the first slow-release layer, a commercially available PVC capillary slow-release attractant, and a commercially available rubber-tipped slow-release attractant. The commercially available PVC capillary slow-release attractant and the commercially available rubber-tipped slow-release attractant had only approximately 10% of their attractant content remaining after 30 days, and were undetectable within 60 days. The comparative slow-release pest attractant releaser containing only the first slow-release layer still had 24.3% of its active ingredient remaining after 60 days, but only 3% by 120 days, representing a negligible amount of active ingredient. In contrast, the pest attractant releaser of Example 1 still had an active ingredient content of 40.2% after 60 days, and even at 120 days, a detectable 10% was still present.

[0096] The above experiments show that the small-sized slow-release pest trapping and releasing device of the present invention can not only release pests stably and evenly, but also has the longest lasting effect.

[0097] 2. Field performance test

[0098] Each of Example 1 pest slow-release trap releaser 1 (double slow-release layer + blue sticky insect board), Example 1 pest slow-release trap releaser 2 (double slow-release layer + yellow sticky insect board), comparative example pest slow-release trap releaser 1 (only the first slow-release layer + blue sticky insect board), comparative example pest slow-release trap releaser 2 (only the first slow-release layer + yellow sticky insect board), commercially available PVC capillary slow-release attractant 1 (PVC capillary + blue sticky insect board), commercially available PVC capillary slow-release attractant 2 (PVC capillary + yellow sticky insect board), commercially available rubber head slow-release attractant 1 (rubber head + blue sticky insect board), and rubber head slow-release attractant 2 (rubber head + yellow sticky insect board) was taken, and a single blue sticky insect board was used as control group 1, and a single yellow sticky insect board was used as control group 2. They were respectively hung in a cowpea greenhouse where thrips occurred, 10 cm above the top of the plant, with the board surface set perpendicular to the bed surface. The total amount of thrips trapped was counted at 3d, 7d, 14d, 30d, 60d and 90d respectively.

[0099] Table 2 Field performance test results

[0100]

[0101]

[0102] As shown in Table 2, the total amount of thrips trapped by the slow-release pest trap and releaser of Example 1 in the first 30 days was slightly lower than that of the commercially available PVC capillary slow-release attractant and the commercially available rubber-tipped slow-release attractant, and its trapping efficiency was comparable to that of the comparative pest trap and releaser containing only the first slow-release layer. The total amount of thrips trapped by the slow-release pest trap and releaser of Example 1 within 60 days and 90 days was higher than that of the commercially available PVC capillary slow-release attractant and the commercially available rubber-tipped slow-release attractant, with increases of 15.8%, 14.6%, 38.5%, and 37.1%, respectively. The total amount of thrips trapped by the slow-release pest trap and releaser of Example 1 within 60 days was comparable to that of the comparative pest trap and releaser containing only the first slow-release layer, and within 90 days, the total amount of thrips trapped was 25.5% higher than that of the comparative pest trap and releaser containing only the first slow-release layer.

[0103] The above experiments show that the insect trap and releaser of the present invention, whether combined with a blue sticky insect board or a yellow sticky insect board, has a better trapping effect on thrips than the comparative insect trap and releaser with only the first slow-release layer, the commercially available PVC capillary slow-release attractant, and the commercially available rubber head slow-release attractant.

[0104] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0105] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A small-sized pest slow-release trapping and releasing device, characterized in that: From the inside to the outside, it includes a hanging layer, an adhesive layer, an isolation layer, a second sustained-release layer and a sealing film; The adhesive layer is respectively bonded to the suspension layer and the isolation layer; A first sustained-release layer is placed inside the isolation layer, the bottom of which is bonded to the adhesive layer, and the top of which is covered by the second sustained-release layer; The sealing film covers the surface of the second sustained-release layer.

2. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The hanging layer is in the shape of a card and is made of polylactic acid, polyhydroxyalkanoate, polybutylene succinate or polycaprolactone, and a buckle that can be freely adjusted and slidably extended outwards from the top.

3. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The adhesive layer is a double-sided adhesive.

4. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The isolation layer is a box-shaped body, in the shape of a cuboid or a cylinder, made of ethylene-vinyl acetate copolymer, polyvinyl chloride or polytetrafluoroethylene, with a height of 0.5-1.5 cm and a thickness of 0.5-1.5 mm.

5. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The first sustained-release layer is composed of microcapsules containing harmful insect attractants.

6. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The second sustained-release layer is made of polyethylene or high-density polyethylene and has a thickness of 10-60 μm.

7. A small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The sealing film is made of ethylene-vinyl acetate copolymer, polyvinyl chloride or polytetrafluoroethylene, has a thickness of 80-120 μm, and has a tear-assisting layer extending outward from the top.

8. The small-sized pest slow-release trapping and releasing device according to claim 1, characterized in that: The small-sized slow-release pest trapping and releasing device is in the shape of a cuboid or a cylinder and is covered with a waterproof isolation film layer on all sides.

9. A small-sized pest slow-release trapping and releasing device according to claim 8, characterized in that: The material of the waterproof isolation film layer is aluminum foil, aluminized film or a film with a barrier material coated on the surface; the barrier material is silicon dioxide, aluminum oxide, polypropylene alcohol or polyacrylonitrile.

10. Use of the small-sized slow-release pest trapping and releasing device according to claim 1 in pest monitoring and pest control.

Images