A small pest slow-release attractant dispenser

Abstract

The utility model discloses a kind of small-sized pest slow-release trapping release device, from inside to outside sequentially include hanging layer, sticking layer, isolation layer, second slow-release layer and sealing film;Wherein, sticking layer is respectively adhered with hanging layer and isolation layer;First slow-release layer is placed in the inside of isolation layer, bottom is adhered with sticking layer, top is covered by second slow-release layer;Sealing film covers the surface of second slow-release layer.The utility model first uses double slow-release layer design, can achieve stable, slowly, evenly, controllably release pest attractant, maximum limit reduce single slow-release layer unstable, uneven, uncontrollable technical limit, basically not be influenced by temperature, humidity and illumination and other external environmental conditions, effective holding period can reach 120 days, and one hangs one tears, portable operation, completely solve the problem of pest attractant carrier placement difficulty.Moreover, the utility model can efficiently exert the advantages of slow-release material, has monitoring and control efficacy, and design is ingenious, strong innovation, and application prospect is wide.

Description

Technical Field

[0001] This utility model relates to the field of agricultural pest control technology, and more specifically to a small slow-release insect attractant. Background Technology

[0002] Insect attractants are used to lure and kill pests without contacting plants or agricultural products, eliminating concerns about pesticide residues. They are one of the preferred methods for modern ecological pest control in agriculture. During pest outbreaks, it is necessary to maintain the concentration of insect attractants at an appropriately high level in the control area for a period of time. The slow-release carrier of the insect attractant is key to its stable and sustained release.

[0003] Currently, the most commonly used attractant release products in the insect pheromone market are slow-release capillary tubes, rubber tips, and some nanomaterials. However, based on the actual application effects of various products, slow-release capillary tubes and rubber tips release attractants too quickly and have poor stability, with an effective release period of about 30 days in the field, which is no longer sufficient to meet the needs of field crop pest monitoring. Nanomaterials, on the other hand, have complex preparation processes, are difficult to store and transport, have unclear safety issues, and pose potential environmental risks.

[0004] Therefore, how to develop a novel slow-release insect trap is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a small slow-release insect trap to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A small pest slow-release attractor, comprising, from the inside out, a hanging layer, an adhesive layer, an isolation layer, a second slow-release layer, and a sealing film;

[0008] The adhesive layer is bonded to both the hanging layer and the release layer.

[0009] The isolation layer contains a first slow-release layer, the bottom is bonded to the adhesive layer, and the top is covered by a second slow-release layer.

[0010] A sealing film is applied to the surface of the second sustained-release layer.

[0011] Furthermore, the aforementioned suspension layer is card-shaped and made of polylactic acid (PLA), polyhydroxyalkanoate (PHA), polybutylene succinate (PBS), or polycaprolactone (PCL), with adjustable and sliding buckles extending outward from the top.

[0012] A further beneficial effect of the above-mentioned method is that the suspension layer is made of an environmentally friendly, biodegradable material. The clips on the suspension layer can be engaged with any other object (such as a trap) and can be adjusted arbitrarily according to the thickness of the attached object.

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

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

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

[0016] The further beneficial effect of adopting the above-mentioned method is that the material of the isolation layer has good sealing properties and is not breathable, which has an isolation effect on the pest attractant in the first slow-release layer and prevents the pest attractant from penetrating, volatilizing and releasing.

[0017] Furthermore, the aforementioned first sustained-release layer consists of microcapsules containing insect attractants.

[0018] The further beneficial effects of the above-mentioned method are that the first slow-release layer, as the core release zone, is composed of a slow-release polymer and is the core of the insect attractant release. Encased within the isolation layer, it allows the volatile attractant to be released outward from this center. It also forms a composite bond with the second slow-release layer, and further releases the attractant through the second slow-release layer. Moreover, the microcapsule slow-release material of this invention has a long and stable duration of action, excellent film-forming properties, is safe and non-toxic, and has good biodegradability, which can reduce the amount of harmful solvents used and lower environmental pollution.

[0019] Furthermore, the material of the second slow-release layer is polyethylene (PE) or high-density polyethylene (HDPE), and the thickness is 10-60μm.

[0020] The further beneficial effect of the above-mentioned method is that the second slow-release layer, acting as a buffer release zone, can re-release the insect attractant released by the first slow-release layer. Moreover, depending on the target pest being monitored or controlled, the release rate of the insect attractant can be appropriately controlled by adjusting the thickness of the second slow-release layer. For example, when the attractant is used for pest population monitoring, the thickness of the second slow-release layer can be increased to achieve long-term monitoring; while when the attractant is used for pest control, the thickness of the second slow-release layer can be reduced to achieve rapid killing in a short period.

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

[0022] The further beneficial effect of adopting the above-mentioned method is that the sealing film has good sealing properties and is not breathable, which is used to seal the pest attractant released by the second slow-release layer. When using it, the sealing film can be directly torn off through the tear-off layer (tear-opening area), which is convenient and quick.

[0023] Furthermore, the aforementioned small pest slow-release attractant is shaped like a cuboid or cylinder, and is covered with a waterproof protective film layer on all sides.

[0024] Furthermore, the aforementioned waterproof and insulating film layer is made of aluminum foil, aluminized film, or a film coated with barrier material.

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

[0026] The further beneficial effect of adopting the above-mentioned method is that the waterproof barrier film layer can prevent the release of pest attractants in one step.

[0027] The usage process of this utility model of small-scale slow-release insect trap is as follows: First, hang the clips of the suspension layer in the insect trap, then tear open the sealing film. This opens the channel for the release of the insect attractant. The insect attractant is released from the first slow-release layer (core release layer), and then passes through the second slow-release layer (buffer release zone). The release rate of the insect 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.

[0028] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] This invention uses a sealing film adhered to the second slow-release layer for sealing, and also covers the entire perimeter of the attractant release device with a waterproof isolation film. This isolates the internal insect attractant from the outside environment. Before use, the volatile components of the insect attractant remain sealed and protected, preventing leakage. During use, the sealing film is removed to expose the second slow-release layer. This second layer buffers the insect attractant released from the first slow-release layer. Below the second slow-release layer is the first slow-release layer, which is the core of the insect attractant release process, uniformly releasing the attractant outwards. Furthermore, the release is more evenly and controllably achieved under the buffering effect of the second slow-release layer, significantly increasing the effective duration of the insect attractant. To further control the release speed of the attractant release device, the thickness of the second slow-release layer can be adjusted; a thicker second slow-release layer results in a slower release rate, and vice versa. The first and second slow-release layers ensure that the insect attractant is released evenly, stably, and in a controllable manner, maximizing the insect attraction effect.

[0030] This novel small-scale insect slow-release attractant release device is the first to adopt a dual-layer slow-release design, enabling stable, slow, uniform, and controllable release of insect attractants. It minimizes the technical limitations of a single slow-release layer, which can lead to instability, unevenness, and uncontrollability. It is largely unaffected by external environmental conditions such as temperature, humidity, and light, and its effective duration can reach 120 days. Furthermore, it is easy to use—simply hang and tear—completely solving the problem of difficult placement of insect attractant carriers. Moreover, this attractant release device efficiently utilizes the advantages of slow-release materials, combining monitoring and control functions. Its ingenious design, strong innovation, and broad application prospects further enhance its potential. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 A schematic diagram of a slow-release attractor for small pests;

[0033] Figure 2 Top view of a slow-release attractant for small pests;

[0034] Figure 3 This is a schematic diagram of the suspended layer structure;

[0035] Figure 4 A cross-sectional view of the isolation layer, the first sustained-release layer, and the second sustained-release layer;

[0036] Figure 5 This is a schematic diagram of the waterproof isolation film layer.

[0037] Among them, 1-hanging layer, 2-adhesive layer, 3-isolation layer, 4-first slow-release layer, 5-second slow-release layer, 6-sealing film, 7-buckle, 8-tear-aid layer, 9-waterproof isolation film layer. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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, 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. Therefore, they should not be construed as limitations on this utility model.

[0040] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Example 1

[0044] The small pest slow-release attractor consists of, from the inside out, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5, and a sealing film 6;

[0045] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0046] The first slow-release layer 4 is placed inside the isolation layer 3, the bottom is bonded to the adhesive layer 2, and the top is covered by the second slow-release layer 5;

[0047] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0048] Among them, the hanging layer 1 is card-shaped and made of polylactic acid, with a freely adjustable and sliding buckle 7 extending outward from the top;

[0049] The isolation layer 3 is a box-shaped rectangular prism made of ethylene-vinyl acetate copolymer, with a height of 0.5cm and a thickness of 0.5mm.

[0050] The first sustained-release layer 4 consists of microcapsules containing insect attractants;

[0051] The second sustained-release layer 5 is made of polyethylene and has a thickness of 10μm;

[0052] The sealing film 6 is made of ethylene-vinyl acetate copolymer, with a thickness of 80μm, and a tear-aid layer 8 extending outward from the top;

[0053] The small pest slow-release attractant is rectangular in shape and covered with a waterproof isolation film layer 9 on all sides, made of aluminum foil.

[0054] Example 2

[0055] The small pest slow-release attractor consists of, from the inside out, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5, and a sealing film 6;

[0056] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0057] The first slow-release layer 4 is placed inside the isolation layer 3, the bottom is bonded to the adhesive layer 2, and the top is covered by the second slow-release layer 5;

[0058] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0059] Among them, the hanging layer 1 is card-shaped and made of polyhydroxyalkanoate, with a freely adjustable and sliding buckle 7 extending outward from the top;

[0060] The isolation layer 3 is a box-shaped, rectangular box made of polyvinyl chloride, with a height of 0.8cm and a thickness of 0.8mm.

[0061] The first sustained-release layer 4 consists of microcapsules containing insect attractants;

[0062] The second sustained-release layer 5 is made of polyethylene and has a thickness of 30μm;

[0063] The sealing film 6 is made of polyvinyl chloride and has a thickness of 100μm. A tear-aid layer 8 extends outward from the top.

[0064] The small pest slow-release attractant is rectangular in shape and covered with a waterproof isolation film layer 9 on all sides. The material is aluminum-plated film.

[0065] Example 3

[0066] The small pest slow-release attractor consists of, from the inside out, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5, and a sealing film 6;

[0067] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0068] The first slow-release layer 4 is placed inside the isolation layer 3, the bottom is bonded to the adhesive layer 2, and the top is covered by the second slow-release layer 5;

[0069] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0070] Among them, the hanging layer 1 is card-shaped and made of polybutylene succinate, with a freely adjustable and sliding buckle 7 extending outward from the top;

[0071] The isolation layer 3 is a box-shaped cylindrical body made of polytetrafluoroethylene, with a height of 1.0cm and a thickness of 1.0mm.

[0072] The first sustained-release layer 4 consists of microcapsules containing insect attractants;

[0073] The second slow-release layer 5 is made of high-density polyethylene and has a thickness of 40μm;

[0074] The sealing film 6 is made of polytetrafluoroethylene, with a thickness of 110μm, and has a tear-aiding layer 8 extending outward from the top.

[0075] The small pest slow-release attractant is cylindrical in shape and covered with a waterproof isolation film layer 9. The material is a thin film coated with silica.

[0076] Example 4

[0077] The small pest slow-release attractor consists of, from the inside out, a hanging layer 1, an adhesive layer 2, an isolation layer 3, a second slow-release layer 5, and a sealing film 6;

[0078] The adhesive layer 2 is a double-sided adhesive, which is bonded to the suspension layer 1 and the isolation layer 3 respectively;

[0079] The first slow-release layer 4 is placed inside the isolation layer 3, the bottom is bonded to the adhesive layer 2, and the top is covered by the second slow-release layer 5;

[0080] The sealing film 6 covers the surface of the second sustained-release layer 5;

[0081] Among them, the hanging layer 1 is card-shaped and made of polycaprolactone, with a freely adjustable and sliding buckle 7 extending outward from the top;

[0082] The isolation layer 3 is a box-shaped cylindrical body made of polytetrafluoroethylene, with a height of 1.5cm and a thickness of 1.5mm.

[0083] The first sustained-release layer 4 consists of microcapsules containing insect attractants;

[0084] The second slow-release layer 5 is made of high-density polyethylene and has a thickness of 60μm;

[0085] The sealing film 6 is made of polytetrafluoroethylene, with a thickness of 120μm, and has a tear-aiding layer 8 extending outward from the top.

[0086] The small pest slow-release attractant is cylindrical in shape and covered with a waterproof isolation film layer 9 on all sides. The material is a thin film coated with aluminum oxide.

[0087] Comparative Example

[0088] The only difference from Example 1 is that it does not contain the second sustained-release layer 5.

[0089] Performance testing

[0090] 1. Indoor performance testing

[0091] Each of the following insect attractant samples was tested: Example 1 insect slow-release attractant (double slow-release layer), comparative insect slow-release attractant (only first slow-release layer), commercially available PVC capillary slow-release attractant, and commercially available rubber-tipped slow-release attractant. The volatile odors of the insect attractants were collected using a solid-phase microextraction needle, and the residual content of the insect attractants was determined by gas chromatography. Measurements were taken every 3, 7, 14, 30, 60, and 120 days. The results are shown in Table 1.

[0092] Table 1 Indoor Performance Test Results

[0093]

[0094] As shown in Table 1, the slow-release insect attractant releaser of Example 1 exhibited significantly better slow-release effects than the comparative insect slow-release attractant releaser with only a first slow-release layer, commercially available PVC capillary slow-release attractant, and commercially available rubber-tipped slow-release attractant within 120 days. Specifically, the commercially available PVC capillary slow-release attractant and commercially available rubber-tipped slow-release attractant had only about 10% insect attractant content after 30 days, and were undetectable within 60 days. The comparative insect slow-release attractant releaser with only a first slow-release layer still had 24.3% active ingredient remaining at 60 days, but only 3% remained at 120 days, with the effective ingredient being essentially negligible. In contrast, the insect attractant releaser of Example 1 still maintained an effective ingredient content of 40.2% at 60 days, and even at 120 days, 10% of the effective ingredient content was still detectable.

[0095] The above experiments demonstrate that this novel small-scale pest slow-release attractant can not only release pests stably and evenly, but also has the longest effective period.

[0096] 2. Field performance testing

[0097] Each of the following insect slow-release attractant release devices was used: Example 1 insect slow-release attractant release device 1 (double slow-release layer + blue sticky insect board), Example 1 insect slow-release attractant release device 2 (double slow-release layer + yellow sticky insect board), comparative insect slow-release attractant release device 1 (only first slow-release layer + blue sticky insect board), comparative insect slow-release attractant release device 2 (only 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-tipped slow-release attractant 1 (rubber tip + blue sticky insect board), and rubber-tipped slow-release attractant 2 (rubber tip + yellow sticky insect board). 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. These devices were hung in cowpea greenhouses where thrips were present, 10 cm above the top of the plants, with the board surface perpendicular to the bed surface. The total number of thrips collected was counted at 3d, 7d, 14d, 30d, 60d and 90d respectively.

[0098] Table 2 Field performance test results

[0099]

[0100]

[0101] As shown in Table 2, the total number of thrips attracted by the slow-release insect trap in Example 1 was slightly lower than that of commercially available PVC capillary slow-release attractants and commercially available rubber-tipped slow-release attractants in the first 30 days, but comparable to the attraction effect of the comparative insect trap with only the first slow-release layer. The total number of thrips attracted by the slow-release insect trap in Example 1 was higher than that of commercially available PVC capillary slow-release attractants and commercially available rubber-tipped slow-release attractants in both 60 and 90 days, increasing by 15.8% and 14.6% and 38.5% and 37.1%, respectively. The total number of thrips attracted by the slow-release insect trap in Example 1 in 60 days was comparable to that of the comparative insect trap with only the first slow-release layer, and the total number of thrips attracted in 90 days was 25.5% higher than that of the comparative insect trap with only the first slow-release layer.

[0102] The above experiments demonstrate that, regardless of whether the present invention is combined with blue or yellow sticky insect boards, its attraction effect on thrips is superior to that of the comparative insect attractor with only a first slow-release layer, commercially available PVC capillary slow-release attractant, and commercially available rubber-tipped slow-release attractant.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0104] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A slow-release attractant dispenser for small pests, characterized in that, From the inside out, it includes a hanging layer, an adhesive layer, a release layer, a second slow-release layer, and a sealing film. The adhesive layer is bonded to the suspension layer and the isolation layer respectively; The isolation layer contains a first slow-release layer, the bottom of which is bonded to the adhesive layer, and the top of which is covered by a second slow-release layer. The sealing film covers the surface of the second sustained-release layer.

2. A small-sized slow-release trap releaser for pests according to claim 1, characterized in that, The suspension layer is card-shaped and made of polylactic acid, polyhydroxyalkanoate, polybutylene succinate, or polycaprolactone, with adjustable and sliding buckles extending outward from the top.

3. A small-sized slow-release trap releaser for pests according to claim 1, characterized in that, The adhesive layer is a double-sided adhesive.

4. A slow-release trap and release device for small pests according to claim 1, wherein, The isolation layer is a box-shaped body, in the form of a cuboid or cylinder, made of ethylene-vinyl acetate copolymer, polyvinyl chloride or polytetrafluoroethylene, with a height of 0.5-1.5cm and a thickness of 0.5-1.5mm.

5. A slow-release trap and release device for small pests according to claim 1, wherein, The first sustained-release layer consists of microcapsules containing insect attractants.

6. A slow-release trap and release device for small pests according to claim 1, wherein, The second sustained-release layer is made of polyethylene or high-density polyethylene and has a thickness of 10-60 μm.

7. A slow-release trap and release device for small pests according to claim 1, wherein The sealing film is made of ethylene-vinyl acetate copolymer, polyvinyl chloride or polytetrafluoroethylene, with a thickness of 80-120μm, and has a tear-aid layer extending outward from the top.

8. A slow-release trap and release device for small pests according to claim 1, wherein, The small pest slow-release attractor is rectangular or cylindrical in shape and covered with a waterproof protective film layer on all sides.

9. A small-sized slow-release trap releaser for pests according to claim 8, characterized in that, The waterproof isolation film layer is made of aluminum foil, aluminized film, or a film coated with a barrier material; the barrier material is silicon dioxide, aluminum oxide, polyacrylamide, or polyacrylonitrile.

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