Flying insect trap

Abstract

This invention provides a flying insect trap with thin plates efficiently positioned around the edges of the trap, making it easy for flying insects to land. [Solution] The insect trap has multiple through-holes on its side, which are large enough for flying insects to pass through, and is enclosed by a frame made of thin plates, with the edges of the plates facing outwards.

Description

[Technical Field]

[0001] The present invention relates to a flying insect trap. [Background Art]

[0002] In recent years, for the purpose of energy saving, airtightness and thermal insulation of houses have been promoted, so that comfortable temperature and humidity can be maintained in houses throughout the year.

[0003] The kitchen also maintains comfortable temperature and humidity similarly, and food residues are often generated, so the environment is suitable for activity and breeding of many insects. On the other hand, along with the increase in global environmental awareness, the use of plastic bags has been restrained. This tends to prolong the period from bagging to discarding kitchen waste. In addition, there are increasing opportunities to store and discard bags filled with kitchen waste when they are not sufficiently sealed. Therefore, in kitchens around sinks and trash bins, a situation where small flying insects such as fruit flies are prone to breed has been permanently formed.

[0004] On the other hand, the tendency to avoid the use of chemicals such as insecticides has become established, and since the generated fruit flies and the like fly around food, the current situation is that people are at a loss how to deal with them.

[0005] Although fruit flies are not categorized as disease-transmitting sanitary pests, they are nuisance pests that gather on food, and capturing them without using chemicals such as insecticides is extremely meaningful.

[0006] For example, as shown in Patent Documents 1 to 3 below, various flying insect traps have been proposed conventionally. [Prior Art Documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent No. 6683625 [Patent Document 2] Japanese Patent Publication No. 2022-191632 [Patent Document 3] Japanese Patent Publication No. 2021-078518 [Overview of the project] [Problems that the invention aims to solve]

[0008] Flying insects have a tendency to perch on edges, such as corners, rather than on flat surfaces of structures. For example, they selectively perch on the rim of a cup-shaped container or on the tip of a stick. Furthermore, flying insects primarily move from lower to higher places. For instance, they are not adept at walking downwards on a vertical, flat wall, whether forward or backward. Their movements become slow, and they quickly change direction to move horizontally or upwards.

[0009] According to the inventors' research, most flying insects that arrive at the trap first land outside the trap, observe the inside through the opening, and then move into the container by walking. After entering the trap, they fly around inside the trap. Unless the opening is very large, direct entry from the outside into the container is rare.

[0010] Considering the habits of flying insects as described above, a trap designed to capture flying insects in a hollow space inside the trap must meet three requirements: firstly, that flying insects can easily land near the opening in the trap; secondly, that they can easily enter the hollow space inside the trap; and thirdly, that flying insects that have entered the trap cannot easily escape to the outside. Conventional traps for flying insects have not always had a structure that satisfies these conditions.

[0011] For example, Patent Document 1 describes a trap comprising a lid with multiple cylindrical sections and a container body. The cluster of cylindrical sections is shaped like a protrusion, providing a place where flying insects can easily land. However, because the cylindrical sections are provided on the lid, there is a limit to the area on which the cylindrical sections that serve as entrances for flying insects can be provided.

[0012] For example, Patent Document 2 proposes a trap that uses a paper container and cuts into it to simultaneously create an entry point and a perch for flying insects. If the opening is large, flying insects may enter the container directly, but conversely, many may fly out of the trap due to the size of the opening. Also, the side walls of the container are completely flat, making it difficult for flying insects to land even if they fly in, and thus it was not possible to capture many flying insects.

[0013] For example, Patent Document 3 proposes a trap with ridges and an attractant opening on its surface, intended to attract flying insects by having them land on the ridges and then guide them into the container through the attractant opening. However, because the height of the ridges is insufficient, flying insects have difficulty landing on them, and the effect of guiding them into the container by the ridges is also diminished, resulting in the trap not being able to capture a large number of flying insects.

[0014] The present invention aims to provide a flying insect trap that efficiently arranges thin plate edges on the trap to facilitate landing of flying insects. [Means for solving the problem]

[0015] After careful consideration of the habits of flying insects, we discovered that by placing through-holes on the sides of the trap, which are enclosed by a frame made of thin plates with the edges of the plates facing outwards, we could increase the capture rate compared to conventional traps, leading to the invention of the flying insect trap.

[0016] The above problem is solved by a flying insect trap that has multiple through-holes on its side, the through-holes being large enough for flying insects to pass through, and is surrounded by a frame made of thin plates, with the edges of the thin plates facing outwards.

[0017] In the aforementioned trap, the frame forming the through-hole can be made of paper, nonwoven fabric, or a film made of synthetic resin.

[0018] In the aforementioned trap, the frame of the through-hole is preferably made of a paper product selected from the group consisting of cushion paper and dangling paper, and the paper product is unfolded to form a shape with an opening suitable for the size of the target flying insect. By using the paper product, the cost of the components can be reduced and the trap can be manufactured through a simple process.

[0019] In the aforementioned trap, it is preferable that the depth of the through-hole be 2 to 12 mm. By setting the depth of the through-hole within this range, flying insects can easily enter the trap through the through-hole, and flying insects that have entered the trap are less likely to escape from the trap.

[0020] Preferably, the aforementioned trap incorporates at least one of an attractant and a light source, and has the function of attracting flying insects into the insect trap.

[0021] Preferably, the trap is equipped with an adhesive part and has the function of capturing flying insects that enter the trap with the adhesive part. In this case, it is preferable that the flying insect to be captured by the trap is a fruit fly. Even small fruit flies can be prevented from escaping the trap by being stuck to the adhesive part. [Effects of the Invention]

[0022] According to the present invention, an object of the present invention is to provide a flying insect trap (hereinafter sometimes referred to as a trap) in which edges of thin plates on which flying insects tend to alight are efficiently arranged on the trap. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] [Figure 1] It is a front view showing an example of cushion paper. [Figure 2] It is a diagram showing a state where the cushion paper of FIG. 1 is expanded in the width direction (unfolding direction). [Figure 3] It is a perspective view showing a support that constitutes the trap. [Figure 4] It is a perspective view of a trap configured by providing an adhesive portion inside the support of FIG. 3 and covering the support with the unfolded cushion paper. [Figure 5] It is a front view showing accordion-folded paper before unfolding. [Figure 6] It is a diagram showing a state where the accordion-folded paper of FIG. 5 is expanded in the width direction (unfolding direction). [Figure 7] It is a perspective view of a trap configured by fixing lids to the upper and lower ends of annularly formed accordion-folded paper and providing an adhesive portion inside. [Figure 8] It is a perspective view showing the expanded annular cushion paper. [Figure 9] It is a perspective view showing components of a trap configured by connecting upper and lower support portions via a connecting portion and providing an adhesive portion inside. [Figure 10] It is a perspective view of a trap formed by covering and fixing the components shown in FIG. 9 with cushion paper. [Figure 11] It is a front view showing a state where cushion paper is fixed to a support having a window formed of a through-hole. [Figure 12] It is a diagram showing a production procedure of a trap configured by fixing lids to the upper and lower ends of the sheet-shaped component of FIG. 11 and installing an adhesive portion inside the component. [Figure 13] It is a photograph showing an example of a trap configured by fixing cushion paper to a support provided with a window, and fixing lids to the upper and lower ends of the support. [Figure 14] This photograph shows an example of a trap constructed by fixing lids to the upper and lower ends of a ring-shaped piece of paper. [Modes for carrying out the invention]

[0024] The following describes embodiments of the flying insect trap of the present invention. The embodiments shown below are merely limited examples of the present invention, and the technical scope of the present invention is not limited to the embodiments described herein.

[0025] [First Embodiment] Figures 1 to 4 show one embodiment of a flying insect trap. In this embodiment, the trap 1a has a plurality of through holes 11a on its side surface, and the through holes 11a are large enough for flying insects to pass through, and are surrounded by a frame 12a made of thin plates 121a, with the edges of the thin plates 121a facing outwards.

[0026] The frame 12a that forms the through-hole 11a is made of paper. More specifically, the frame 12a is made of a processed paper product called cushion paper. Cushion paper is a flat sheet with multiple rows of cut lines arranged in a staggered pattern in one direction before being stretched and unfolded, and is commercially available as, for example, cushioning material. Using a commercially available product can reduce the manufacturing cost of the trap. Furthermore, it is preferable for the frame to be made of paper because it is possible to construct the frame from renewable resources and because it is easy to separate when disposing of it.

[0027] Figure 1 shows an example of cushion paper 13. The cushion paper 13 in Figure 1 has multiple slit-shaped cuts (hereinafter simply referred to as slits) in the width direction. Adjacent cuts are provided with their positions offset in the direction of extension of the slit 131, and are arranged in a so-called staggered pattern. For example, in the first row of slits, the slit 131a of the first column and the slit 132b of the second column are positioned offset in the direction of extension, and the slit 131c of the third column and the slit 131a of the first column are positioned approximately the same, and from the third column onward, the same shape as the first and second columns continues in the width direction. The slits from the second row onward have the same shape as the slits in the first row.

[0028] As shown in Figure 2, when the cushion paper is pulled in the width direction, i.e., in the unfolding direction, a through hole 11a is formed in adjacent slits, with the overlapping portion 132 between the lower end of one slit and the upper end of the other slit serving as a connecting point, and the frame 12a made of thin plates 121a surrounding the paper, with the edges of the thin plates 121a facing outwards.

[0029] As shown in Figure 2, when the cushion paper 13 is pulled in the width direction, the positions of the edges of the slits 131, which were arranged along the plane as shown in Figure 1, shift, and the edges of the thin sheets 121a face outwards. When a single slit 131 of the cushion paper 13 is stretched and unfolded, it generally forms a hexagonal shape, and the whole structure forms a mesh structure with the edges of the thin sheets facing outwards.

[0030] As shown in Figures 3 and 4, by fixing the cushion paper 13 in an unfolded state to a support 14 having a window 141 formed by a through hole on its side, a trap 1a can be obtained in which the edges of the thin plate 121a face outwards.

[0031] In the trap 1a shown in Figure 4, a rectangular support 14 with multiple windows 141 on its side is covered with a ring-shaped cushion paper 13 from above or below, so that the edge of the thin plate 121a faces outwards. By making the outer dimensions of the support 14 larger than the inner dimensions of the ring-shaped cushion paper 13, the position of the cushion paper 13 relative to the support 14 becomes easier to determine when the cushion paper 13 is unfolded, and the cushion paper 13 can be easily fixed in place. To prevent the cushion paper 13 and the support 14 from shifting, the cushion paper 13 and the support 14 may be fixed together using any joining means such as adhesive, glue, or adhesive tape. To make the cushion paper 13 ring-shaped, one end of the cushion paper 13 may be joined and fixed together, or commercially available ring-shaped cushion paper may be used.

[0032] In the trap 1a shown in Figure 4, a sheet coated with adhesive is installed inside the support 14 as an adhesive part 15a. When targeting small flying insects such as fruit flies, the fruit flies will adhere to the adhesive part 15a, preventing them from escaping the trap once they enter the trap 1a. The size, color, shape, and characteristics of the adhesive used of the adhesive sheet are not particularly limited. They can be changed as needed depending on the target of capture.

[0033] The shape of the support is not limited to a hollow rectangular parallelepiped, but can be any shape that allows windows to be formed on at least the sides of the support. Windows may also be provided on the top surface of the support. Examples of support shapes include hollow cylindrical shapes, prismatic shapes such as triangular prisms, polyhedra such as octahedra, and container shapes such as spheres.

[0034] In this embodiment, the trap 1a is constructed by fixing an annular piece of cushion paper 13 to the support 14. Instead of cushion paper, an annular piece of rolled paper, as described later, may be fixed.

[0035] [Second Embodiment] Figures 5 to 7 show one embodiment of a flying insect trap. In this embodiment, the trap 1b has a plurality of through holes 11b on its side surface, and the through holes 11b are sized to allow flying insects to pass through, and are surrounded by a frame 12b made of thin plates 121b, with the edges of the thin plates 121b facing outwards.

[0036] The frame 12b that forms the through-hole 11b is made of paper. More specifically, the frame 12b is made of a paper product called "denguri paper." Denguri paper is a traditional Japanese paper craft made by pasting together many thin sheets of paper, so that when unfolded, its cross-section resembles a honeycomb. It is also called honeycomb paper. Denguri paper is commercially available, for example, as cushioning material. Denguri paper is also sold in pre-formed ring shapes, such as honeycomb bottle covers (Shimojima Co., Ltd.), and using such commercially available products can reduce the manufacturing cost of the trap.

[0037] Figures 5 and 6 show examples of the folding paper 16. Figure 5 is a front view showing the folding paper 16. When unfolded as shown in Figure 6, multiple through holes 11b surrounded by a frame 12b made of thin plates 121b are revealed. The folding paper 16 in Figure 5 has a depth in the depth direction of Figure 5 that is indicated by b in Figure 6.

[0038] As shown in Figure 6, when the rolled paper 16 is pulled in the width direction, i.e., in the unfolding direction, the frame 12b made of thin plates 121b, which was folded as shown in Figure 5, opens up, and the edges of the thin plates 121b face outwards.

[0039] As shown in Figure 7, the hollow trap 1b is completed by fixing the lids 17b to the upper and lower ends of the unfolded annular paper 16, respectively. The adhesive part 15b may be placed inside the hollow trap 1b.

[0040] The lid can be any shape that can close the openings at the upper and lower ends of the paper wrapper 16. The lid 17b has a plate-like portion that serves as the top or bottom plate and closes the openings, and a side wall portion 171b that extends from the plate-like portion toward the paper wrapper 16. The paper wrapper 16 and the lid 17b are fixed together by fitting the ends of the paper wrapper 16 into the side wall portion 171b. The paper wrapper 16 and the lid 17b may also be fixed together by the aforementioned joining means. The lid 17b may be made of a material such as plastic, but it is preferable to make it out of paper. In the trap 1b of this embodiment, the lid 17b is made of cardboard.

[0041] In the example shown in Figure 7, the paper is used in a ring shape. This can be done by joining and fixing one end of the paper together, or by using commercially available ring-shaped paper.

[0042] [Third Embodiment] Figures 8 to 10 show one embodiment of a flying insect trap. The trap 1c of this embodiment has a plurality of through holes 11a on its side surface, and the through holes 11a are sized to allow flying insects to pass through, and are surrounded by a frame 12a made of thin plates 121a, with the edges of the thin plates 121a facing outwards.

[0043] The trap 1c of this embodiment includes one lid 17c, another lid 17c positioned separately from the first lid 17c, a connecting portion 18 that connects the two lids 17c, and cushion paper 13 that is fixed to cover the lids 17c, the lids 17c, and the connecting portion 18. The cushion paper 13 is the same as described above. The above-mentioned dangling paper may be used instead of the cushion paper 13.

[0044] The lids 17c and lid 17b may be cup-shaped with side walls similar to those of the lid 17b, or they may be flat plates. The lids 17c and connecting part 18 may be made of plastic or the like, but it is preferable that they be made of paper. The connecting part 18 is preferably made of cardboard or corrugated cardboard and has sufficient rigidity to support the lids 17c and lid 17b.

[0045] An adhesive portion 15c may be placed inside the trap 1c, as shown in Figure 9.

[0046] [Fourth Embodiment] Figures 11 and 12 show one embodiment of a flying insect trap. The trap 1d of this embodiment has a plurality of through holes 11a on its side surface, and the through holes 11a are sized to allow flying insects to pass through, and are surrounded by a frame 12a made of thin plates 121a, with the edges of the thin plates 121a facing outwards.

[0047] The frame 12a that forms the through hole 11a is made of paper. More specifically, the frame 12a is made of the cushion paper 13 described above. Since the cushion paper 13 has poor rigidity, it is fixed to a support 19 that supports the cushion paper 13, as shown in Figure 11. The support 19 can be made of, for example, cardboard, corrugated cardboard, plastic, etc. It is preferable that the support 19 be made of paper.

[0048] The support 19 is a rectangular plate in plan view and has a window 191 formed by a through hole, and the cushion paper is fixed by the aforementioned arbitrary joining means so as to cover the window 191. As shown in Figure 12, the cushion paper 13 and the support 19 are made annular by joining one end to the other end of the support 19. A hooking projection 192 is provided at one end of the support 19, and a slit hole 193 is provided at the other end of the support 19 to receive the hooking projection 192. The support 19 is made annular by fitting the projection 192 into the slit hole 193.

[0049] The hollow trap 1d is constructed by fitting the lids 17d and lids 17d onto the upper and lower ends of the support 19 and securing them with the joining means. The support 19 may be fitted inside or outside the upper and lower lids 17d. The adhesive portion 15d may be placed inside the trap 1d.

[0050] In the traps of each of the above embodiments, the thickness of the thin plate constituting the frame of the through hole can be, for example, 0.01 to 1.0 mm.

[0051] In the traps of the embodiments described above, flying insects that land on the frame of the through-hole or other parts of the trap move by walking and peer into the inside of the trap. Subsequently, the flying insects fly into the inside of the trap. This tendency is stronger if attractants such as light sources or attractants are installed inside the trap. The frame of the through-hole forms a three-dimensional structure with the edges of thin plates facing outwards, and has thickness and directionality. Therefore, it has a large opening when viewed from one angle, but a smaller opening when viewed from a different angle. Flying insects are hindered by the frame of the through-hole having the above characteristics, and once they enter the inside of the trap, it is difficult for them to get out of the trap.

[0052] In the traps of each of the embodiments described above, when the target of capture is a fruit fly, it is preferable that the depth of the through-holes provided on the side of the trap be 2 to 12 mm. The depth of the through-hole is, for example, the length of the frame in the direction perpendicular to the extending direction of the frame, as shown by b in the example using cushion paper shown in Figure 2. Also, for example, in the example using dangling paper shown in Figure 6, it is the length of the frame 12b in the direction perpendicular to the extending direction of the frame 12b, as shown by b. By setting the depth of the through-hole as described above, the depth of the through-hole is not made long, so flying insects that land on the edge of the through-hole can easily enter the inside of the trap through the through-hole.

[0053] In the trap according to the above embodiment, when cushion paper is used to construct the through-hole, the size of the through-hole 11a can be adjusted by the length of the slit, the degree to which the cushion paper is stretched, and the distance from adjacent slit lines. For example, by increasing the length of the slit, the widthwise length a of the through-hole 11a can be increased, and the length in the extending direction intersecting a can also be increased. The size of the through-hole 11a can be adjusted according to the size of the flying insect to be captured. For example, when fruit flies are to be captured, a can be 2 to 15 mm, and more preferably 3 to 10 mm.

[0054] In the trap according to the above embodiment, the slits, or cut lines, in the cushion paper are made by making straight lines of the same length in one direction and in a staggered pattern. This makes it easier to stretch the paper evenly, spreads the mesh evenly, and improves the appearance. However, it is not necessary to use only straight lines; curves may also be used, or straight lines and curves may be mixed together. Furthermore, some of the cut lines may be made in different directions instead of all the same. Alternatively, areas without cut lines can be created. For example, if a design such as color, pattern, or design is printed on the cushion paper, not making cut lines in the printed area will prevent the printed content from becoming illegible when the paper is stretched.

[0055] When using denguri paper to construct the through-hole, the size of the through-hole 11b can be adjusted by the degree to which the denguri paper is stretched and the size of the inner diameter of the hole in a direction intersecting the stretching direction. For example, the widthwise length a of the through-hole 11b can be increased by the degree of stretching and unfolding of the denguri paper, switching between various commercially available products, or changing the specifications of custom-made products. The through-hole 11b can be adjusted according to the size of the flying insect to be captured. For example, when fruit flies are to be captured, the length a can be 2 to 15 mm, and more preferably 3 to 10 mm.

[0056] If the widthwise length a of the through-holes 11a and 11b is within the above range, it is easy for fruit flies to enter the trap by walking, but it is difficult for them to pass through while flying with their wings spread. Once a fruit fly enters the trap, it cannot get out and will run out of energy while flying around. If an attractant or light source is placed inside the trap, fruit flies will be more easily attracted into the trap. If an adhesive is placed inside the trap, fruit flies that have entered the trap will be caught by the adhesive sheet while flying around inside. If the length is too small, it will be difficult for fruit flies to enter the trap, and if it is too large, many will fly away.

[0057] The flying insects that can be captured are not limited to fruit flies; the size of the through-holes can be changed depending on the size of the target insect. For example, if flesh flies are the target and cushion paper is used as the material that makes up the through-holes, the length of the slits can be increased and the widthwise length a of the through-holes 11a and 11b can be increased to enlarge the through-holes, making it suitable for use with flesh flies as well.

[0058] In the traps of each of the embodiments described above, the frame can be made of paper, nonwoven fabric, or synthetic resin film. As mentioned above, when using cushion paper, paper or nonwoven fabric materials are preferably used. Among these, paper materials are suitable for recycling and can reduce the environmental impact.

[0059] In the traps of each of the embodiments described above, the trap may incorporate at least one of an attractant and a light source, and may have the function of attracting flying insects inside the trap. By placing an attractant or a light source, flying insects can be guided into the trap. Alternatively, known attractants having a similar attracting effect to the attractant or light source may be used.

[0060] As the attractant, for example, vinegar, alcohol, wine, fruit flavors, pheromones, etc., can be used depending on the purpose. Insecticides may also be added to the attractant. As the light source, LEDs, cold cathode ray tubes, fluorescent lamps, incandescent light bulbs, phosphorescent materials, etc., can be used.

[0061] The traps of each of the above embodiments may be manufactured using materials such as nonwoven fabric, plastic film, molded plastic, or metal. However, it is preferable to use paper as a constituent material for reasons such as ease of disposal, ease of obtaining materials, and the fact that it is a renewable resource.

[0062] In the traps of each of the embodiments described above, the material such as rolled paper or cushion paper with multiple through holes may be used only in a part of the trap, such as a window on the side of the trap, or it may cover the entire trap. Alternatively, the trap itself may be constructed from the material such as rolled paper or cushion paper with multiple through holes.

[0063] Alternatively, for example, a material such as dangling paper or cushion paper with multiple through-holes may be placed inside a container that has a window made of through-holes. In this case, the distance between the container and the material such as dangling paper or cushion paper with multiple through-holes can be arbitrary. By providing a material such as dangling paper or cushion paper with multiple through-holes, it is possible to secure many places where flying insects can easily land in part of, the whole of, or near the trap. [Examples]

[0064] The present invention will be described in detail below with reference to embodiments. The embodiments shown below are merely limited embodiments of the present invention, and the technical scope of the present invention should not be limited to these embodiments.

[0065] • A trap made from cushion paper [Example 1] A trap with multiple through-holes was made using commercially available cushion paper in the manner described below. In its flat state before unfolding, the cushion paper has a length of 10 mm from the start to the end of one slit, a distance of 5 mm between the end of a slit in the same row and the start of the next slit, and a distance of 2 mm between slits in an adjacent row.

[0066] A trap with a shape similar to Figure 4 was fabricated by opening windows on all four sides of a regular hexahedron, covering the top and bottom of a support with the top and bottom closed, and then securing the unfolded cushion paper over it. When the cushion paper was placed over the support, its length a in the width direction was 5 mm. An adhesive sheet and an attractant were placed inside the trap. The depth b of the through-hole was 2 mm.

[0067] [Example 2] A trap was fabricated in the same manner as in Example 1, except that the cushion paper was fixed to the support so that the length a was 7 mm.

[0068] [Comparative Example 1] For comparison, a version was prepared in which an adhesive sheet and an attractant were placed inside the support without using cushion paper.

[0069] • Traps made from paper

[0070] [Example 3] Using commercially available denguri paper, which is used as cushioning material to protect cylindrical objects such as bottles, a trap with multiple through-holes was constructed using the method described below.

[0071] A hollow trap with a shape similar to that shown in Figure 7 was fabricated by shaping a rolled-up paper into a cylinder and sealing the top and bottom ends with cup-shaped lids. An attractant and an adhesive sheet were placed inside the trap. The length a of the rolled-up paper was set to 5 mm. The depth b of the through hole was set to 10 mm.

[0072] [Example 4] The trap was made in the same manner as in Example 3, except that the rolled paper was unfolded so that the length a was 10 mm and fixed to the lid.

[0073] [Comparative Example 2] For comparison, a trap was created using only an adhesive sheet and attractant inside the bottom lid, without using any paper trappings.

[0074] [Experiment 1] Multiple chambers were set up, each containing a trap according to Example 1, Example 2, and Comparative Example 1. 100 fruit flies were released into each chamber, and the chambers were closed to prevent the fruit flies from escaping. The chambers were left undisturbed for 24 hours. After 24 hours, the number of fruit flies captured inside each trap was counted. The results are summarized in Table 1.

[0075] [Table 1]

[0076] [Experiment 2] The traps according to Example 3, Example 4, and Comparative Example 2 were placed in multiple chambers, and 100 fruit flies were released into each chamber. The chambers were then closed to prevent the fruit flies from escaping, and the chambers were left undisturbed for 24 hours. After 24 hours, the number of fruit flies captured inside each trap was counted. The results are summarized in Table 2.

[0077] [Table 2]

[0078] As is clear from Tables 1 and 2, the number of fruit flies captured increased significantly in the traps of Examples 1 and 2, which used cushion paper, and in the traps of Examples 3 and 4, which used dangly paper, compared to Comparative Example 1 or Comparative Example 2.

[0079] As described above, by arranging multiple through-holes with a frame made of thin plates on the side of the trap, the edges of the thin plates that make it easy for fruit flies that fly in to land on the side of the trap are arranged facing outwards, making it possible to efficiently capture fruit flies. Figures 13 and 14 show photographs of an actual trap with many thin plate edges arranged facing outwards. Furthermore, it is possible to provide a trap that makes it easy for fruit flies to enter the inside of the trap, but difficult for fruit flies that have entered the inside to escape to the outside. [Explanation of Symbols]

[0080] 1a Trap 1b Trap 1c trap 1d trap 11a Through hole 11b Through hole 121a thin plate 121b thin plate 12a Frame 12b Frame 13 Cushion paper 16 Denguri paper 15a Adhesive part 15b Adhesive part 15c Adhesive part 15d Adhesive part

Claims

1. The trap has multiple through holes on its side. The aforementioned through-hole is large enough for a flying insect to pass through, and is surrounded by a frame made of thin plates, with the edges of the thin plates facing outwards, in a flying insect trap.

2. The flying insect trap according to claim 1, wherein the frame forming the through-hole is made of paper, nonwoven fabric, or a film made of synthetic resin.

3. The frame of the through-hole is made of a paper product selected from the group consisting of cushion paper and dangling paper. The flying insect trap according to claim 1, wherein the paper processed product is unfolded to have a shape with an opening suitable for the size of the target flying insect.

4. The flying insect trap according to claim 1 or 2, wherein the depth of the through-hole is 2 to 12 mm.

5. The insect trap according to claim 1 or 2, wherein the trap incorporates at least one of an attractant and a light source, and has the function of attracting flying insects into the insect trap.

6. A flying insect trap according to claim 1 or 2, comprising an adhesive part, which has the function of capturing flying insects that have entered the inside of the trap with the adhesive part.

7. The flying insect trap according to claim 6, wherein the target flying insect for capture is a fruit fly.

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