JP2006087371A - Method for trapping hematophagous mosquito and insect-trapping device used for the same method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for suitably trapping hematophagous mosquitos by utilizing an existing insect-trapping device having an insect-attracting lamp. <P>SOLUTION: A photocatalyst is provided in a state held by a mounting frame body 2 in the insect-trapping device 1 in which the insect-attracting lamp 3 emitting ultraviolet light and an adhesive sheet 4 for trapping attracted flying insects are arranged in the mounting frame body 2. The photocatalyst is photoexcited by irradiating ultraviolet light of the attracting lamp 3 to the photocatalyst and an organic compound in the air is decomposed to carbon dioxide by the oxidation action of the photocatalyst and the hematophagous mosquitos are attracted by the carbon dioxide and trapped onto an adhesive sheet. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for capturing blood-sucking mosquitoes that are difficult to be attracted by ultraviolet rays, and an insect trap used for the method.

  Insect lamps that emit ultraviolet rays preferred by flying insects such as flies and moths and adhesive sheets are provided on the mounting frame, and trapping devices that capture flying insects attracted to the insect lamps with adhesive sheets are widely known (for example, Patent Document 1). In such an insect trap, a large number of flying insects can be attracted because ultraviolet rays as an attracting source are irradiated over a wide range. In addition, the attracted flying insects are not electrocuted but attached to the adhesive sheet and captured, so there is an advantage that the electricity bill is low and the safety is high.

Japanese Patent Publication No. 11-46657

  By the way, the ultraviolet rays emitted by the insect lamp can effectively attract many flying insects, but harmful blood-sucking mosquitoes such as Yabu mosquitoes are known not to be attracted so much by ultraviolet rays, The above traps do not capture blood sucking mosquitoes sufficiently.

  Here, these blood-sucking mosquitoes are strongly attracted by carbon dioxide, so if you want to catch blood-sucking mosquitoes with the above-mentioned trapping device, additionally install a carbon dioxide generator on the trapping device and attract the blood-sucking mosquito with carbon dioxide It is possible. However, there are known carbon dioxide generators that emit carbon dioxide from a carbon dioxide cylinder, and those that burn carbon dioxide to generate carbon dioxide. There is a high risk.

  The present invention has been made in view of the current situation, and a method for capturing a blood-sucking mosquito that suitably captures a blood-sucking mosquito by using an existing insect trap having an attracting lamp, and a method for realizing the capturing method The purpose is to provide insect traps.

  The present invention uses an insect trap in which an attracting lamp that emits ultraviolet rays and an adhesive sheet that captures attracted flying insects are provided on the mounting frame, and the photocatalyst is held on the mounting frame, By irradiating the photocatalyst with ultraviolet light from a lamp, the organic compound in the air is oxidized by the oxidizing action of the photocatalyst, and the blood sucking mosquito is attracted by the carbon dioxide gas generated thereby to be captured on the adhesive sheet. This is a method for catching mosquitoes.

  Here, the lure lamp generally emits 300 to 400 nm ultraviolet rays that are preferred by many flying insects, and the ultraviolet rays of this wavelength are used for most photocatalysts, including titanium dioxide, which is most popular as a photocatalyst. It can be photoexcited. That is, according to the present invention, by holding the photocatalyst in the mounting frame, the photocatalyst is photoexcited using the ultraviolet rays of the insect lamp, and the organic compound in the air is oxidized to generate carbon dioxide gas. Therefore, according to this method, the carbon dioxide gas concentration around the insect trap increases when the insect lamp is turned on, and blood sucking mosquitoes that are difficult to be attracted by ultraviolet rays can be attracted to the trap and captured by the adhesive sheet. In addition to generating carbon dioxide gas, there is an advantage that odorous substances in the air can be decomposed and suspended bacteria can be sterilized by the oxidizing action of the photocatalyst.

  As one method for holding the photocatalyst on the mounting frame, it is proposed to apply the photocatalyst to the surface of the mounting frame facing the insect lamp. In such a method, the layered photocatalyst is retained on the surface of the mounting frame by applying an existing coating liquid or the like in which the photocatalyst is dispersed in advance to the surface of the mounting frame, in order to retain the photocatalyst. Without providing this mechanism, the photocatalyst can be suitably held in the mounting frame.

  In addition, it is also proposed to hold an infinite number of photocatalyst particles formed by supporting a photocatalyst on the surface of the granular base material on the mounting frame so as to face the insect lamp. Here, the photocatalyst particles are existing ones obtained by coating a photocatalyst on a granular base material such as glass or metal, and the photocatalyst particles are placed directly on the mounting frame or attached to a container. Thus, the photocatalyst can be easily held on the mounting frame rather than being applied to the mounting frame. Also, by supporting the photocatalyst on the surface of the granular substrate, the layered photocatalyst can be held in a dense state.

  Here, carbon dioxide gas is generated by oxidative decomposition of organic compounds in the air, that is, floating dust, bacteria, oil, and the like by the photocatalyst. Therefore, the amount of carbon dioxide generated depends on the concentration of the organic compound near the photocatalyst. For this reason, in the said capture method, providing the organic compound supply agent which discharge | releases an organic compound in the air in an attachment frame is proposed. According to such a method, the concentration of the organic compound in the vicinity of the photocatalyst can be increased by releasing the organic compound from the organic compound supply agent into the air, and more carbon dioxide gas is generated due to the oxidizing action of the photocatalyst. Can be made. Here, the organic compound supply agent is arranged directly in the vicinity of the photocatalyst or in a state of being put in a container, and the shape of the solid agent or the solvent is not limited. Further, it is desirable that the organic compounds such as volatile gas and fine particles to be released are easily decomposed into carbon dioxide gas by the oxidizing action of the photocatalyst. Furthermore, an additional effect can be obtained as long as it releases an organic compound having an attractive property of aromatic gas or flying insects.

  Moreover, although the said blood-sucking mosquito capture method can be implemented by providing a photocatalyst and an organic compound supply agent in addition to the conventional insect trap, it can also use the insect trap which incorporated the photocatalyst beforehand. That is, the present invention provides a photocatalyst at a position where an ultraviolet ray of the insect lamp hits in an insect trap in which an attachment lamp body is provided with an insect lamp emitting ultraviolet rays and an adhesive sheet for catching the attracted flying insects is stretched. It is also an insect trap characterized by being held. In such a configuration, when the attracting lamp is turned on, carbon dioxide gas is generated by the oxidizing action of the photocatalyst as in the above-described capturing method, and the existing carbon dioxide gas is generated by using the ultraviolet light of the attracting lamp. Carbon dioxide gas is generated with a simpler configuration than that of the device, and blood sucking mosquitoes around the trap are attracted and captured on the adhesive sheet.

  Here, in the said insect trap, the structure by which the photocatalyst is apply | coated to the surface which opposes an insect lamp of an attachment frame is preferable. In such a configuration, the photocatalyst is only held in layers on the surface of the mounting frame, and the photocatalyst can be carried on the mounting frame without changing the structure of the existing trapping device mounting frame.

  In addition, a configuration is also proposed in which a photocatalyst accommodating portion that opens upward is provided at a position facing the lower part of the attracting lamp in the mounting frame, and the photocatalyst particles carrying the photocatalyst on the surface are accommodated in the photocatalyst accommodating portion. . In such a configuration, since the photocatalyst is held on the particle surface, a wide layer of photocatalysts can be arranged densely, and by adjusting the number of photocatalyst particles accommodated in the photocatalyst accommodating portion The amount of photocatalyst can be easily increased or decreased according to the use conditions. Note that the photocatalyst housing portion is not limited to the one that directly houses the photocatalyst particles, and may be one that houses a container filled with the photocatalyst particles.

  In addition, a configuration is also proposed in which photocatalytic metal wool formed by supporting a photocatalyst on the surface of a wool-like metal substrate is provided at a position of the mounting frame facing the attracting lamp. In such a configuration, similar to the photocatalyst granules, the photocatalyst layers can be formed densely, and since they are wool-like, they are more integrated than the photocatalyst granules, and the shape of the mounting frame It is possible to form freely according to the shape and hold it on the mounting frame. Further, since it is in the form of wool, there are few shadowed parts, and there is an advantage that the reaction efficiency with respect to ultraviolet rays is high.

  Furthermore, an insect trap is also proposed in which the mounting frame includes a supply agent storage unit that stores an organic compound supply agent that releases an organic compound into the air. In such a configuration, it is possible to increase the amount of carbon dioxide generated by increasing the concentration of the organic compound around the photocatalyst by storing the organic compound supply agent in the supply agent storage portion as necessary. Become. Note that the supply agent storage unit is not limited to the one that directly stores the liquid or solid supply agent, and may be a unit that detachably attaches a cartridge containing the supply agent.

  As described above, in the present invention, the photocatalyst is held on the mounting frame, and the photocatalyst is irradiated with ultraviolet rays from an insect lamp, whereby the organic compound in the air is oxidized by the oxidizing action of the photocatalyst. Because it is a method for capturing blood-sucking mosquitoes by attracting blood-sucking mosquitoes by using carbon dioxide gas and capturing them on an adhesive sheet, attracting harmful blood-sucking mosquitoes that are difficult to be attracted by ultraviolet rays by attracting them with carbon dioxide gas It is possible to capture more flying insects using an existing insect trap. In particular, since this method generates carbon dioxide gas by the oxidation action of the photocatalyst using the ultraviolet rays of the attracting lamp, carbon dioxide gas can be generated very easily compared to the method of burning a carbon dioxide cylinder or fuel. In addition, since the insect trap does not use a blower such as a fan to capture flying insects, the generated carbon dioxide gas can be easily retained, and a concentration gradient of carbon dioxide gas can be suitably formed around the insect trap. Furthermore, there is an advantage that not only carbon dioxide gas is generated by the oxidizing action of the photocatalyst but also ambient air is sterilized and deodorized.

  Further, in the above method, when the photocatalyst is applied to the surface of the mounting frame that faces the attracting lamp, the mounting frame does not require a mechanism for holding the photocatalyst, and the mounting frame has various shapes. The photocatalyst can be suitably held in

  In addition, when the photocatalyst particles formed by supporting the photocatalyst on the surface of the granular substrate are held innumerably on the mounting frame so as to face the attracting lamp, the photocatalyst is applied rather than applying the photocatalyst to the mounting frame. Can be easily and densely held.

  Furthermore, in the case where an organic compound supply agent that releases an organic compound into the air is provided on the mounting frame, it is possible to increase attracting mosquitoes by increasing the carbon dioxide gas generated by the oxidizing action.

  Moreover, according to the trap with a photocatalyst held at the position where the ultraviolet light of the insect lamp hits, carbon dioxide gas can be easily generated using the ultraviolet light for attracting flying insects. This makes it possible to capture blood-sucking mosquitoes that are difficult to be attracted by ultraviolet rays without complicating or increasing the size of the insect trap.

  Here, in such an insect trap, when the photocatalyst is applied to the surface of the mounting frame facing the insect lamp, the photocatalyst is suitably held without changing the shape of the conventional mounting frame. Can be made.

  In addition, a photocatalyst accommodating portion that opens upward is provided at a position opposite to the lower part of the attracting lamp in the mounting frame, and when the photocatalyst particles carrying the photocatalyst on the surface are accommodated in the photocatalyst accommodating portion, These layers can be kept densely and the amount of photocatalyst can be freely increased or decreased. In particular, when an organic compound supply agent is provided in the insect trap, the organic compound released from the organic compound supply agent can be efficiently decomposed into carbon dioxide gas by mixing with the organic compound supply agent.

  Furthermore, when the photocatalyst metal wool formed by supporting the photocatalyst on the surface of the wool-like metal substrate is provided at the position of the mounting frame facing the insect lamp, the photocatalyst having high density and high reaction efficiency Can be held at various locations on the mounting frame.

  Further, in the above trapping device, when the supply frame containing the organic compound supply agent that releases the organic compound in the air is provided in the mounting frame, the organic compound supply agent is added as necessary. By appropriately accommodating it, the generation amount of carbon dioxide gas can be increased, and the capture efficiency of blood-sucking mosquitoes can be improved.

Embodiments of the present invention are described according to the following examples.
1-3 show an insect trap 1 according to the present invention. The insect trap 1 includes an insect lamp 3 and an adhesive sheet 4 arranged on a mounting frame 2. The attachment frame 2 is formed by assembling a stainless steel plate into a long box shape on the left and right, and an attracting lamp 3 and an adhesive sheet 4 are provided inside an attracting area 11 that opens in the front-rear direction. Further, chain connecting portions 7 and 7 are provided on both sides of the upper portion of the mounting frame 2, and the insect trap 1 is suspended from the ceiling via the chain connecting portion 7.

  The attracting lamp 3 is constituted by a straight tube fluorescent lamp, and is detachably attached to sockets 8 and 8 provided on both upper sides of the attracting area 11. The insect lamp 3 emits ultraviolet rays having a wavelength of 300 to 400 nm, and attracts many flying insects by the ultraviolet rays.

  The pressure-sensitive adhesive sheet 4 is composed of a belt-like sheet with a pressure-sensitive adhesive disposed on one side, and engages the coupling members 9 and 9 attached to both ends with sheet attachment grooves (not shown) formed on both sides of the attracting region 11. Thus, it is stretched in the left-right direction.

  And the accommodation tray part 10 opened upwards along the insect attracting lamp 3 is provided in the attachment frame body 2 at the lower facing position of the insect attracting lamp 3. This container part 10 serves as both the photocatalyst container and the organic compound supply container according to the present invention. As shown in FIG. 3, the photocatalyst granules 5 and the granular organic compound supplier 6 are provided. It is mixed and placed on the receiving tray 10.

  The photocatalyst granules 5 are obtained by baking and coating glass beads with a photocatalyst made of titanium dioxide, and existing products can be suitably used. This titanium dioxide is photoexcited with respect to ultraviolet rays having a wavelength of 300 to 400 nm emitted from the insect attracting lamp 3 to produce an oxidizing action. The constituent material of the photocatalyst is most preferably titanium dioxide, which is inexpensive and has high photocatalytic activity, but metal oxides other than titanium dioxide and other materials can also be used. Here, in the present embodiment, the photocatalyst particles 5 are not directly applied to the storage dish part 10 but the photocatalyst particles 5 are placed, whereby the surface area of the photocatalyst to be held can be increased, and the photocatalyst to be held The amount of can be adjusted freely.

  The organic compound supply agent 6 releases an aromatic organic compound into the air for several tens of days, and the generated organic compound is decomposed into water and carbon dioxide by the oxidizing action of the photocatalyst. In particular, in the present embodiment, since the photocatalyst granules 5 and the organic compound supply agent 6 are mixed in the storage dish portion 10, the released organic compound is efficiently supplied to the photocatalyst of the photocatalyst granules 5. The Moreover, the organic compound which was not decomposed | disassembled and the organic compound discharge | released at the time of the non-lighting of the attracting lamp 3 will spread | diffuse to circumference | surroundings, and will exhibit an aroma effect. The organic compound supply agent may be one that releases a sucking mosquito attractant (for example, octenol) or the like instead of one that releases an aromatic substance. In addition, the photocatalyst granules 5 can be used without being consumed, but the organic compound supply agent is a consumable product and needs to be replenished. Therefore, when mixed with the photocatalyst granules 5 as in this embodiment, It is desirable to use a material that does not leave a residue after the organic compound has been released.

  The operation of the insect trap 1 will be described. First, when the attracting lamp 3 of the insect trap 1 is turned on, ultraviolet light is irradiated from the attracting lamp 3. Flies, moths, some mosquitoes and the like that are attracted by ultraviolet rays are attracted by the ultraviolet rays and are captured by the adhesive sheet 4. On the other hand, the irradiated ultraviolet light hits the lower photocatalyst particles 5 to photoexcite the photocatalyst on the surface of the particles, and the excited photocatalyst supplies the surrounding organic compounds, that is, dust, oil, and organic compounds by its oxidation action. The aromatic compound released from the agent 6 is oxidized to generate carbon dioxide gas. The carbon dioxide gas gradually diffuses, the concentration of carbon dioxide around the insect trap 1 increases, and blood-sucking mosquitoes that are difficult to be attracted by ultraviolet rays are attracted to the insect trap 1 and captured by the adhesive sheet 4. It will be. Here, most of the flying insects attracted by the insect trap 1 are attached to the adhesive sheet 4 and captured, but some of them are exhausted by the heat and ultraviolet rays of the insect attracting lamp 3 and fall to the receiving tray 10. Therefore, the flying insect constituents are also a source of carbon dioxide generated by the oxidation of the photocatalyst.

  Thus, according to the insect trap 1, not only the flying insects are attracted and captured by ultraviolet rays, but also blood-sucking mosquitoes that are difficult to be attracted by ultraviolet rays can be attracted and captured by carbon dioxide. In particular, the insect trap 1 of the present embodiment generates carbon dioxide using the ultraviolet rays of the attracting lamp 3, so that no new energy is required, and the photocatalyst granules 5 and the organic compound supply agent 6 are usually used. It is small compared to the carbon dioxide generator of the above, and can be easily and inexpensively arranged without changing the layout of an existing insect trap equipped with an insect lamp. Furthermore, the insect trap 1 has the advantage that ambient air can be sterilized and deodorized by the oxidizing action of the photocatalyst. In addition, when the insect trap 1 of the present Example was used, the raise of the carbon dioxide gas concentration around the trap 1 was confirmed. In addition, the number of blood-sucking mosquitoes captured on the adhesive sheet is compared by actually using the insect trap 1 of the example and the trap (compare product) having a configuration in which the photocatalyst particles 5 are removed from the trap 1 As a result, a larger number of blood-sucking mosquitoes were captured in the pressure-sensitive adhesive sheet of the insect trap 1 of the embodiment than in the comparative pressure-sensitive adhesive sheet.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, the insect trap 1 is not limited to a suspended one, but can be a stationary type or a wall hanging type, and the shape of the mounting frame 2 can be variously changed according to each type. Moreover, the attachment frame 2 may be comprised by the some member. Further, the insect attracting lamp 3 may be constituted by a circular fluorescent lamp or a light emitting diode, and the shape and mounting manner of the adhesive sheet 4 can be appropriately changed.

  Moreover, in the said Example, although the photocatalyst granule 5 is mounted in the accommodation tray part 10 of the insect trap 1 and the photocatalyst is hold | maintained at the attachment frame 2, in addition to the photocatalyst granule 5, it is wool-like. Alternatively, a honeycomb or panel-shaped base material coated with a photocatalyst may be held by the mounting frame 2. In such a case, it is also possible to fix the photocatalyst to the other part of the mounting frame 2 without placing it on the receiving tray 10. Furthermore, it is possible to hold the photocatalyst by directly applying a photocatalyst coating liquid to the surface of the mounting frame 2 that faces the attracting lamp 3.

  The organic compound supply agent is not limited to a granular material, and various materials such as solid, powder, and liquid can be used. Moreover, you may provide not only the structure mounted in the accommodating tray part 10 but the thing with which the cartridge was filled can be attached or detached to the attachment frame body 2. As shown in FIG.

It is a perspective view of insect trap 1 concerning the present invention. 1 is a front view of an insect trap 1. FIG. It is a vertical side view of the insect trap 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insect catcher 2 Mounting frame 3 Insect lamp 4 Adhesive sheet 5 Photocatalyst granule 6 Organic compound supply agent 7 Chain | linkage coupling | bond part 8 Socket 9 Binding member 10 Storage tray part 11 Attraction area

Claims (9)

The attachment frame uses an insect trap with an insect lamp that emits ultraviolet rays and an adhesive sheet that captures the attracted flying insect,
By holding the photocatalyst on the mounting frame and irradiating the photocatalyst with ultraviolet rays from the insect lamp, the organic compound in the air is oxidized by the oxidizing action of the photocatalyst. A method for capturing a blood-sucking mosquito, characterized in that it is captured on a sheet.   The method for capturing blood-sucking mosquitoes according to claim 1, wherein a photocatalyst is applied to a surface of the mounting frame that faces the attracting lamp.   2. The method for capturing a blood-sucking mosquito according to claim 1, wherein a number of photocatalyst particles formed by supporting a photocatalyst on the surface of the granular substrate are held on the mounting frame so as to face the insect lamp.   The method for capturing a blood-sucking mosquito according to any one of claims 1 to 3, wherein the mounting frame is provided with an organic compound supplying agent that releases an organic compound into the air. In the insect trap that is provided with an insect lamp that emits ultraviolet rays on the mounting frame, and an adhesive sheet that catches the attracted flying insect,
An insect trap characterized in that a photocatalyst is held at a position of the mounting frame facing the attracting lamp.   6. The insect trap according to claim 5, wherein the photocatalyst is applied to a surface of the mounting frame facing the attracting lamp.   A photocatalyst accommodating portion that opens upward is provided at a position opposite to the lower part of the attracting lamp in the mounting frame, and the photocatalyst particles carrying the photocatalyst on the surface are accommodated in the photocatalyst accommodating portion. 5. An insect trap according to 5.   6. The insect trap according to claim 5, wherein a photocatalytic metal wool having a photocatalyst supported on the surface of a wool-like metal substrate is provided at a position of the mounting frame facing the attracting lamp. The insect trap according to any one of claims 5 to 8, wherein the mounting frame includes a supply agent storage unit that stores an organic compound supply agent that releases an organic compound into the air.

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