Replaceable insert for insect trap and insect trap

Abstract

A replaceable insert (3) for an insect trap (1) and an insect trap (1) comprising the replaceable insert (3) are described. The insert (3) comprises a body (21) having a front surface (19) and a rear surface (9), where the rear surface (9) comprises a coating (23) comprising an adhesive for trapping insects. The body (21) has at least one handling fold line (17) configured to fold the body (21) along the at least one handling fold line (17) such that at least a portion (9a) of the rear surface (9) can be folded onto another portion (9a, 9b) of the rear surface (9). This facilitates discarding the insert (3), for example after use, such that trapped insects are closed by the folded body (21) and minimizes exposure of the user to the adhesive. In the folded state, the portion (9a) and the other portion (9b) of the rear surface (9a, 9b) are adhered to each other via an adhesive between which trapped insects are located. The trap (1) further comprises a base (5) comprising a lighting element (7) as bait for attracting insects, an electrical contact element (11) for supplying power to the lighting element (7) and a fastening element (13) for holding the replaceable insert (3). The lighting element (7) is configured to direct light towards the rear surface (9) of the insert (3).

Description

[0001] The present invention relates to a replaceable insert for an insect trap and an insect trap including such an insert.

[0002] Over time, a variety of devices have been used to trap arthropods, especially insects. Such devices generally include attracting means for attracting insects to the trap. The attracting means can include, for example, food, light, heat, pheromones, or other odorous materials that are considered attractive to the respective insects. Some of these devices include means for preventing insects from leaving the device, such as a surface covered with an adhesive that causes the insects to adhere to the surface. Flying insects (including mosquitoes and flies) are considered particularly annoying and harmful to health and hygiene.

[0003] Insect trapping devices that combine an adhesive for trapping insects with light are known. Ultraviolet light or visible light or a combination thereof can be used. Large devices including fluorescent tubes may be suitable for large commercial premises, such as large restaurant kitchens, but are expensive and inconvenient for domestic users. There is also a desire to be able to replace and dispose of used inserts without the discomfort of touching dead insects and / or the adhesive.

[0004] US2020 / 0113165A1 (Procter & Gamble) discloses an insect light trap having a frame and a film with an adhesive surface. The frame can have a hinged lid that protects the user from seeing dead insects during disposal.

[0005] WO2016 / 207430 (SABIC) discloses an insect light trap in which the replaceable part includes a transparent or translucent frame or grid for an adhesive sheet. The consumer can hold the replaceable part via the frame or grid without touching the adhesive sheet, but the emitted light can still pass through the frame or grid.

[0006] JP2010-136630 (Sankyo Seisakusho Co., Ltd.) discloses an insect light trap having a flat rectangular insert that can be folded in half to enclose dead insects inside for disposal.

[0007] JP2023-60723 (Shimadzu Corporation) discloses an insect light trap having a paper-based adhesive substrate that is folded into a pocket shape. If the insects come off the adhesive, they are still retained inside the pocket. The substrate is attached to a simple housing via a spring clip, a pin passing through a hole in the substrate, etc. One problem with this design is that most of the substrate is inaccessible to insects and / or not illuminated by the light source when mounted on the housing.

[0008] JP2003 - 92964 (Panasonic Electric Works) discloses an insect light trap having an adhesive sheet that is bent or curved by a frame into the shape of a horizontally extending groove located below a light bar. The groove can retain insects that may fall off the adhesive due to wind or gravity. The adhesive sheet may have incisions or creases to facilitate folding after use to trap the insects therein.

[0009] WO2022047088A1 (Procter & Gamble) discloses an arthropod trapping device that includes a base, a light shield, and an insert. The outer surface of the light shield can be convex, while the surface facing the light source is concave. The insert can include at least partially reflective, concave, light - facing surfaces, on which an adhesive is provided. It can be planar but flexible such that a user bends, folds, or deflects it when inserting it into the light shield.

[0010] There is a need for a device that is easier to manufacture, easy to operate comfortably, and more sustainable, and ideally also has a higher insect - trapping efficacy.

[0011] According to a first aspect of the present invention, there is provided an insect trap as claimed in claim 1. The trap includes a replaceable insert. The trap can be provided with the insert already in place and ready for use, or can be provided as a kit of the insert plus the remainder of the trap for a user to insert the insert into place. The insert includes a body having a front surface and a rear surface, wherein the rear surface includes a coating that includes an adhesive for trapping insects. The body includes at least one folding line, herein referred to as a "disposal folding line", which is configured to cause the body to fold along the at least one folding line such that at least a portion of the rear surface can be folded onto another portion of the rear surface.

[0012] The base of the trap preferably includes a support portion, and the body of the insert abuts against the support portion when installed in the trap. The body of the insert preferably includes a plurality of folding lines (herein referred to as "insertion folding lines") such that when the insert is installed in the trap, the body folds along the plurality of insertion folding lines. Preferably, the insert folds along the plurality of insertion folding lines into a shape that substantially conforms to the shape of the support portion. In an embodiment, the support portion has a curved shape and / or a concave shape (when viewed from the rear of the trap). Preferably, the insert folds into a curved and / or concave shape (preferably a concave - curved shape) of the rear surface.

[0013] According to a second aspect of the present invention, there is provided a replaceable insert as claimed in claim 7.

[0014] Preferably, the insert is a sheet. Preferably, it is opaque. Preferably, it is reflective.

[0015] Preferably, the front surface of the insert is free of adhesive. Preferably, the front surface of the insert abuts against the support portion when installed in the trap; in this embodiment, no adhesive is required on the front surface because insects are prevented from entering between the front surface and the support portion, and in this case, the adhesive on the front surface does not facilitate the easy insertion and removal of the insert into and out of the trap.

[0016] The insert according to the present invention allows for easy handling and disposal of the insert after use. During use, insects are trapped by being adhered to the rear surface via the adhesive. Before disposal, the insert can be folded along the at least one disposal fold line such that the said portion and the said other portion of the rear surface are adhered to each other via the adhesive, and the trapped insects are enclosed between the said portion and the said other portion. Thus, the trapped insects are not exposed to the consumer, just like the coating of the surfaces that have been folded against each other. The folded insert can then be conveniently discarded.

[0017] In one embodiment, the plurality of insert fold lines includes at least 3, preferably at least 4, and / or up to 6 or up to 5 insert fold lines. In one embodiment, the at least one disposal fold line is at least one of the plurality of insert fold lines; preferably, each of the disposal fold lines present is also an insert fold line. In one embodiment, there are a total of only 4 fold lines on the body.

[0018] In one embodiment, one or more of the fold lines include creases, indentations or perforations to facilitate folding of the insert. Preferably, the at least one disposal fold line includes a crease. Preferably, each of the plurality of insert fold lines includes a crease.

[0019] In one embodiment, the at least one disposal fold line divides the rear surface into two congruent parts. In this embodiment, the rear surface coated with the adhesive is completely folded up, and the folded insert has a minimum size and does not show any part of the rear surface coated with the adhesive or any trapped insects to the consumer.

[0020] In another preferred embodiment, the rear surface includes at least one adhesive-free area. The at least one adhesive-free area can be in any part on the rear surface: top, bottom, middle, side or center. The area can be created, for example, by folding a part of the rear surface before applying the adhesive, applying glue to the rear surface and unfolding the folded part of the rear surface. In the latter embodiment, there will be no adhesive on the part of the rear surface that has been folded before applying the adhesive. The adhesive-free area can also be created by simply not applying adhesive to it, i.e., leaving the part adhesive-free. In the adhesive-free area, the consumer can touch the rear surface without sticking to it. For example, the consumer can hold the insert by placing the thumb on the (adhesive-free) front surface and another finger on the adhesive-free part of the rear surface. This is beneficial when the consumer needs to replace the insert. Preferably, the at least one adhesive-free area is located at the top of the rear surface, on the pull-tab.

[0021] In yet another preferred embodiment, the body of the insert is made of paper and / or cardboard, thus forming a sustainable product. Preferably, it includes paper. Alternatively, the body can also be made of other flexible materials, such as polyethylene terephthalate (PET) or matte board. The body can be printed, laminated and / or include different textures. For example, it can be glossy or matte, but preferably glossy. In one embodiment, it includes a laminate that includes paper and a plastic material, preferably polyethylene (PE) or PET. In one embodiment, the laminate is a two-layer laminate of paper and polyethylene (PE) or PET. The plastic material can act as a barrier between the paper and the adhesive, for example, preventing the adhesive from being absorbed by the paper. Thus, more adhesive can be located on the surface of the insert and can be used to trap insects.

[0022] Preferably, at least the rear surface of the insert has a white color. The adhesive can be transparent, preferably a clear and transparent adhesive, such that the white color shows through the rear surface. The white, glossy or reflective surface of the insert body is particularly beneficial for better reflecting the light emitted by the lighting element, for example, reflecting it onto the wall adjacent to the location of the trap, thereby increasing the attraction to draw insects near the trap.

[0023] In one embodiment, the insert forms a flexible sheet and does not include any frame or other support structure for the sheet. It is advantageous if the body of the insert is made of a material that includes paper and the material has sufficient stiffness to enable it to be inserted into the base by itself.

[0024] The insect trap of the present invention includes a base. The base includes an illumination element for guiding light towards the rear surface of the insert, an electrical contact element for powering the illumination element, and a fastening element for holding the insert. Preferably, the illumination element is located in the lower central region of the base. In a preferred embodiment, the light is reflected on the rear surface, and thus when the insect trap is inserted into, for example, a wall socket, the light also reaches the wall, for example, opposite the rear surface, which can improve the light cue for attracting insects to the trap. Preferably, the insert has an opaque light-reflective surface, thereby providing an increased reflection level relative to the corresponding matte surface.

[0025] The insect trap according to the present invention includes an illumination device as a bait for attracting insects. The illumination device can employ ultraviolet light or visible light, or a combination thereof. In a preferred embodiment, the illumination device employs a combination of ultraviolet light and blue light. Preferably, the wavelength of the ultraviolet light is 300nm to 400nm, 350nm to 390nm, 360nm to 380nm, 365nm to 375nm, about 370nm or 370nm. Preferably, the wavelength of the blue light is in the range of 420nm to 480nm, 430nm to 470nm, 440nm to 460nm, 445nm to 455nm, about 450nm or 450nm. Preferably, the intensity of the blue light is in the range of 30lux - 100lux, 40lux - 90lux or 50lux - 75lux. It has been found that these wavelengths and intensities are particularly advantageous when the insects are flies (preferably house flies).

[0026] The illumination element can include one or more LEDs, such as one, two, three, four, five, six, seven or eight LEDs, preferably five LEDs, and optionally a lens. For example, the illumination element can include two ultraviolet LEDs and three blue LEDs. The LEDs can be arranged in any suitable pattern in the illumination element, such as in a triangular or arched arrangement, depending on the shape and area of the rear surface to be covered. Using more than one LED can improve the efficacy compared to a single LED, even if the total intensity of the emitted light is the same.

[0027] The insect trap can be configured to operate in such a way that the illumination device is permanently on during use. This is convenient for the user, for example, the device can be turned on and forgotten until the insert needs to be replaced.

[0028] The illumination device and the insert can be configured such that when the insert is located in the trap, the illumination device illuminates at least 80%, at least 85%, at least 90%, at least 95% or at least 98% of the rear surface of the insert. Preferably, in use, the illumination device illuminates the entire rear surface of the insert, except for any portions hidden between any guide rails present in the trap.

[0029] In one embodiment, the insect is a flying insect, preferably a mosquito and / or a fly, preferably a housefly, preferably Musca domestica.

[0030] Optionally, the trap and / or the insert may include a chemical attractant for the insects. However, preferably, no chemical attractant is present. The lighting device may be the only means for attracting the insects near the trap. The absence of a chemical attractant avoids unpleasant odors being smelled by the consumer. It is suitable for use in the home (including kitchen areas), reducing concerns regarding safety as there are no chemical attractants that can be touched by children or pets or come into contact with food.

[0031] The electrical contact element may include a plug for connecting the base to an electrical outlet wall socket.

[0032] Alternatively, the electrical contact element may be configured to connect the base to a battery.

[0033] The fastening element may include a slit configured to receive the insert via a folded edge of a fold line. In this embodiment, the insert body has a folded edge extending along the fold line, which can be easily slipped into the slit.

[0034] In a preferred embodiment, the fastening element includes one or more guide rails. Preferably, the fastening element is two guide rails located on opposite sides of the trap.

[0035] In one embodiment, the insert has a 2D shape in its deployed state, defined by a top boundary portion and a bottom boundary portion. The bottom boundary portion is configured to be inserted downward into the leading edge of the trap, preferably against a support portion of the base (e.g., behind the guide rail). Preferably, the plurality of insert fold lines each extend from the top boundary portion to the bottom boundary portion. Once inserted, the insert is preferably in a folded state about an axis extending from the top boundary portion to the bottom boundary portion, forming a shape that is concave and / or conforms to the shape of the support portion when viewed from the rear side of the trap. Preferably, the axis is a symmetry axis.

[0036] In one embodiment, the bottom boundary portion includes at least one guiding portion, such as a protruding member or a groove. This may be arranged to engage with a corresponding groove or protruding member on the base. Alternatively or additionally, the guiding portion may facilitate positioning of the insert behind the guide rail and easy downward sliding of the insert. Preferably, the bottom boundary portion has a pointed lug on each side. Preferably, the sides of the body taper from a wider top boundary portion to a narrower bottom boundary portion.

[0037] In one embodiment, the top boundary portion includes a pull tab, such as a pull tab protruding from the center of the top boundary portion.

[0038] In one embodiment, the maximum height (the maximum length between the top boundary portion and the bottom boundary portion) of the insert in its deployed state can be at least 10 cm, at least 11 cm, at least 12 cm, at least 13 cm, at least 14 cm or at least 15 cm, and / or up to 25 cm, up to 24 cm, up to 23 cm, up to 22 cm, up to 21 cm, up to 20 cm, up to 19 cm, up to 18 cm or up to 17 cm. The maximum width (the maximum length perpendicular to the maximum height) of the insert in its deployed state can be at least 7 cm, at least 8 cm, at least 9 cm, at least 10 cm, at least 11 cm, at least 12 cm or at least 13 cm, and / or up to 20 cm, up to 19 cm, up to 18 cm, up to 17 cm, up to 16 cm, up to 15 cm or up to 14 cm.

[0039] The method of discarding a used insert can be as follows.

[0040] The body of the insert includes at least one disposal fold line configured to cause the body to fold along the at least one disposal fold line such that at least a portion of the rear surface can be folded onto another portion of the rear surface. The discarding method includes folding the said portion of the rear surface onto the said another portion such that the said portion adheres to the said another portion via an adhesive, thereby trapping the insect between the said portion and the said another portion. Then the folded body is discarded.

[0041] In all of the above and below embodiments, before the insert is installed into the insect trap, the rear surface can include a release paper covering the coating for protecting the consumer from unnecessary contact with the adhesive. The consumer removes it by peeling off the release paper, such that the adhesive is exposed and is ready to trap insects when the insert is installed into the insect trap.

[0042] The release paper can include at least one area that remains on the coating when the release paper is removed. Such one or more areas of the release paper can be used as, for example, finger gripping areas when removing the release paper. The said areas thus constitute non-adhesive areas and thus protect the consumer's hand from contact with the adhesive (e.g., when installing or replacing the insert). In addition, the said areas can be arranged on the rear surface portion where the insert contacts the base of the insect trap to protect the base from contact with the adhesive. The release paper having such retention areas can be manufactured, for example, in a process involving two-stage cutting: partially-cut peelable profiles (i.e., the one or more retained areas); and cutting the outer profile of the insert.

[0043] In addition, in all of the above and below embodiments, a plurality of insertion folding lines (preferably including creases) of the insert body may be arranged at the center of the rear surface or around the center, and / or arranged on the rear surface at regular distances from each other or at varying distances from each other. The plurality of insertion folding lines may be arranged around the center of the rear surface at varying distances from each other. Preferably, there are no folding lines in the central region of the insert, preferably the width of this region is 10%-50% (preferably 20%-40% or 25%-35%) of the maximum width of the insert, and preferably it extends the entire height of the insert. When used in a trap, the insert may be flat in this central region in its folded state, while the rest of the insert folds around to form an overall curved and / or concave shape.

[0044] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] Figure 1 A rear perspective view shows an insect trap including a replaceable insert according to the present invention;

[0046] Figure 2 A front view shows Figure 1 the insect trap;

[0047] Figure 3 Embodiments of the replaceable insert are shown; and

[0048] Figure 4 Another embodiment of an insect trap according to the present invention is shown.

[0049] Figure 1 The insect trap 1 is depicted. The insect trap 1 is of the type that prevents insects from escaping from the trap after being captured. To this end, the insect trap 1 includes a replaceable insert 3 having a body 21 with rear surfaces 9a, 9b, the rear surfaces having a coating 23.

[0050] The coating 23 includes an adhesive. The adhesive can be a glue that causes insects to adhere to the rear surface when they come into contact with it. The insect trap 1 further includes an insect bait in the form of a lighting element 7 that illuminates the rear surfaces 9a, 9b and is adapted to attract insects. For this purpose, ultraviolet light and / or visible light can be used. The lighting element 7 can include one or more LEDs and a lens for directing light towards the target area. When the insect trap is plugged into a wall socket, the target area can include the wall opposite the rear surfaces 9a, 9b, which can be illuminated by the light reflected from the rear surfaces towards the wall. The insect trap 1 also includes a base 5 having fastening elements 13 for holding the replaceable insert 3. Electrical contact elements 11 are provided to supply power to the lighting element 7. In this embodiment, the electrical contact elements 11 include a plug that can be mounted to a wall socket. The body 21 of the insert 3 has a disposal fold line 17 along which the body can be folded so that a part 9a of the rear surface can be folded onto another part 9b of the rear surface. In Figure 1 the embodiment, the parts 9a and 9b of the rear surface are congruent so that after the body 21 is folded, the consumer is not exposed to the adhesive. Since the trapped insects are retained by the adhesive on the rear surfaces 9a and 9b, the folded rear surface parts 9a and 9b will adhere to each other via the adhesive and enclose the trapped insects, so that the consumer is also not exposed to the trapped insects. This facilitates discarding the insert 3 when it is exhausted and needs to be replaced. In addition, the size of the insert 3 is minimized thereby, so that less space is required for disposal.

[0051] Figure 2 The insect trap 1 is depicted in a front view. The body 21 of the insert 3 has a front surface 19 which preferably has no adhesive. Alternatively, the front surface 19 can also include a part covered with the adhesive so that insects touching the front surface 19 will also be trapped there. In Figure 1 the embodiment, the base 5 includes a slit 15 into which the insert 3 can be slid via the folding edge of the disposal fold line 17. The slit 15 can facilitate the installation and replacement of the insert 3. Figure 2 In

[0052] In Figure 3 it, a replaceable insert 3 according to another embodiment of the present invention is shown. The depicted view is oriented towards the rear surfaces 9c, 9d, 9e of the body 21 of the insert 3. The rear surface has a coating 23 that includes an adhesive. In Figure 3 the embodiment, the body 21 of the insert 3 has two disposal fold lines 17a and 17b. The rear surface part 9c can be folded onto the rear surface part 9d via the fold line 17a, and the rear surface part 9e can be folded onto the rear surface part 9d via the fold line 17b. This facilitates discarding the insert 3 after use. In addition, in Figure 3In the embodiment, when the main body 21 is folded, the consumer is not exposed to the trapped insects between the rear surface portions 9c, 9d and 9e. In addition, the exposure of the adhesive and the size of the folded insert are also minimized. In addition, these disposal fold lines can function as insert fold lines. Therefore, the "flap pieces", namely the rear surface portions 9c and 9e, help to increase the overall rear surface and thus increase the probability of trapping insects. In addition, having the flap pieces facilitates handling of the main body 21 of the insert 3. For example, the consumer can place one hand on the front surface of the rear surface portion 9c and the other hand on the front surface of the rear surface portion 9e to hold the main body 21. The front surfaces of the rear surface portions 9c and 9e are free of adhesive.

[0053] Figure 4 Another embodiment of the insect trap 1 according to the present invention is shown. The insect trap 1 has a replaceable insert 3, a support portion for receiving the replaceable insert 3 (against which the insert 3 abuts in use), a base 5, an illumination element 7 for providing a light cue for attracting insects to the insect trap 2, and an electrical contact element 11. The insert 3 includes a main body 21 having a front surface (not shown) and a rear surface 9, on which a coating 23 including an adhesive for trapping insects is disposed. The main body 21 includes five insert fold lines 17a, 17b, 17c, 17d and 17e. Preferably, the fold lines include creases. In Figure 4 the embodiment, the insert fold lines with creases can be used to create a curved shape of the rear surface 9. For example, by slightly bending the rear surface portions adjacent to the corresponding fold lines until the desired overall curvature of the rear surface is achieved, without using a forming tool. Compared with the rear surface of a flat sheet, the curved rear surface area has a larger surface area (relative to the width of the insect trap), thus increasing the probability of trapping insects. At least one insert fold line also functions as a disposal fold line. Therefore, when the insert 3 is exhausted, the consumer can fold the main body along one or more fold lines (e.g., the center fold line), thus forming one or more pockets with trapped insects on the rear surface. When discarding the exhausted insert 3 and replacing it, the exposure of the consumer to the trapped insects and the adhesive is thereby minimized.

[0054] Similar embodiments can be envisaged, in which the main body has four insert fold lines (e.g., where the center line 17a is omitted).

Claims

1. An insect trap (1), the insect trap comprising: A replaceable insert (3); And A base (5), the base (5) comprising: A lighting element (7), the lighting element (7) serving as a bait for attracting insects; An electrical contact element (11), the electrical contact element (11) for powering the lighting element (7); and A fastening element (13), the fastening element (13) for holding the replaceable insert (3); The insert (3) comprises: A body (21) having a front surface and a rear surface (9), wherein the rear surface (9) comprises a coating (23), the coating (23) comprising an adhesive for trapping insects, and the lighting element (7) is configured to direct light towards the rear surface (9) of the insert (3); Wherein: The body (21) has at least one disposal fold line (17), the at least one disposal fold line (17) being configured to fold the body (21) along the at least one disposal fold line (17) such that at least a portion of the rear surface (9) can be folded onto another portion of the rear surface (9).

2. The insect trap according to claim 1, wherein, The body (21) has a plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e), the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) being configured such that when the insert (3) is installed in the trap (1), the body (21) abuts against a support portion of the base (5), and the insert (3) is folded into a shape substantially conforming to the shape of the support portion of the base (5).

3. The insect trap according to claim 1 or 2, wherein The body (21) has a plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e), the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) being configured such that when the insert (3) is installed in the trap (1), the insert (3) is folded along the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) into a concave and / or curved shape of the rear surface (9).

4. The insect trap according to claim 2 or 3, wherein, The at least one disposal fold line (17a, 17b, 17c, 17d, 17e) is at least one of the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e), preferably wherein each of the disposal fold lines (17a, 17b, 17c, 17d, 17e) is an insertion fold line (17a, 17b, 17c, 17d, 17e), preferably wherein the body (21) has only 4 fold lines in total.

5. The insect trap (1) according to any one of the preceding claims, wherein, The electrical contact element (11) includes a plug for connecting the base (5) to an electrical outlet wall socket, and the lighting element (7) and the insert (3) are configured such that when the trap (1) is inserted into the wall socket, light emitted by the lighting element (7) is reflected on the rear surface (9) of the insert (3) onto a wall opposite the rear surface (9).

6. The insect trap (1) according to any one of the preceding claims, wherein, The fastening element (13) is a guide rail, preferably wherein, the trap (1) includes two guide rails on opposite sides of the support portion of the base (5).

7. A replaceable insert (3) for an insect trap (1) according to any one of the preceding claims, the insert (3) comprising: a body (21) having a front surface (19) and a rear surface (9), wherein the rear surface (9) includes a coating (23), the coating (23) including an adhesive for trapping insects, wherein: the body (21) includes at least one disposal fold line (17), the at least one disposal fold line (17) being configured to fold the body (21) along the at least one disposal fold line (17) such that at least a portion of the rear surface (9a) can be folded onto another portion (9b) of the rear surface (9a, 9b).

8. The replaceable insert (3) according to claim 7, wherein, the body (21) has a plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e), the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) being configured to fold into a concave and / or curved shape of the rear surface (9) along the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) when the insert (3) is installed in the trap (1).

9. The replaceable insert (3) according to claim 7 or 8, wherein, the body (21) has at least three insertion fold lines (17a, 17b, 17c, 17d, 17e), the body (21) being configured to fold along the at least three insertion fold lines (17a, 17b, 17c, 17d, 17e) when the insert (3) is installed in the trap (1), preferably wherein, the body (21) has: at least four and / or up to six or up to five insertion fold lines (17a, 17b, 17c, 17d, 17e), preferably only four insertion fold lines (17a, 17b, 17c, 17d, 17e).

10. The replaceable insert (3) according to any one of claims 7 to 9, wherein, the at least one disposal fold line (17a, 17b, 17c, 17d, 17e) is at least one of the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e), preferably wherein each of the disposal fold lines (17a, 17b, 17c, 17d, 17e) is an insertion fold line (17a, 17b, 17c, 17d, 17e), preferably wherein the body (21) has only 4 fold lines in total.

11. The replaceable insert (3) according to any one of claims 7 to 10, wherein, the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) configured to fold the body (21) into the concave and / or curved shape are arranged on the rear surface (9) around the center of the rear surface (9) at varying distances from each other.

12. The replaceable insert (3) according to any one of claims 7 to 11, wherein, the body (21) is a sheet.

13. The replaceable insert (3) according to any one of claims 7 to 12, wherein, the portion (9a) and the other portion (9b) of the rear surface (9) adhere to each other via the adhesive when folded along the at least one disposal fold line (17), preferably wherein, The body (21) is configured to enclose the insect between the portion (9a) and the other portion (9b) of the rear surface (9) when the body (21) is folded along the at least one disposal fold line (17) after the insect has been trapped.

14. The replaceable insert (3) according to any one of claims 7 to 13, wherein, Each of the plurality of insertion fold lines (17a, 17b, 17c, 17d, 17e) includes a crease.

15. The replaceable insert (3) according to any one of claims 7 to 14, wherein, The rear surface (9) includes at least one non - adhesive area.

16. The replaceable insert (3) according to any one of claims 7 to 15, wherein, The front surface (19) is non - adhesive.

17. The replaceable insert (3) according to any one of claims 7 to 16, wherein, The body (21) is made of a material including paper, or alternatively, the body (21) is made of a material including a laminate, the laminate including a paper layer and a plastic material layer, preferably where the plastic material is PE or PET, and / or preferably where the adhesive is applied on top of the plastic material layer.

18. The replaceable insert (3) according to any one of claims 7 to 17, wherein the replaceable insert (3) has a 2D shape defined by a top boundary portion and a bottom boundary portion in the deployed state, wherein, The bottom boundary portion is configured as a leading edge for downward insertion into the base (5) of the insect trap (1), and: The bottom boundary portion includes pointed lugs on each side; and / or The top boundary portion includes a pull tab for removing the insert (3) from the insect trap (1); and / or In the deployed state, the top boundary portion is a wider portion of the body (21) than the bottom boundary portion, such that the sides of the body (21) taper from the top boundary portion to the bottom boundary portion.

19. The replaceable insert (3) according to claim 18 when dependent on claim 8, wherein, The plurality of fold lines (17a, 17b, 17c, 17d, 17e) extend from the top boundary portion to the bottom boundary portion.

20. The replaceable insert (3) according to any one of claims 7 to 19, wherein, The central region of the insert (3) has no fold lines, preferably where the width of the central region is 10% - 50%, preferably 20% - 40% or 25% - 35% of the maximum width of the insert (3) in the deployed state, and preferably where the central region extends the entire height of the insert (3) in the deployed state of the insert (3).

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