JP2006067966A - Mosquito luring and catching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mosquito luring and catching device capable of catching mosquitoes for a long period, by safely and continuously generating carbon dioxide for the long period. <P>SOLUTION: This mosquito luring and catching device A is equipped with a luring part for luring the mosquitoes and a catching part 3 for catching the mosquitoes, wherein the luring part has a carbon dioxide generating part 4 which continuously generates the carbon dioxide for the long period, by together using at least a solid acid 4a, a solid alkali 4b, and a deliquescent substance 4c. The deliquescent substance 4c preferably comprises at least one kind selected from calcium chloride, magnesium chloride, and potassium carbonate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mosquito attracting and capturing device capable of attracting and capturing mosquitoes for a long period of time.

  Conventionally, mosquito coils, electric mosquito traps, aerosol sprays, and the like have been used to control mosquitoes that are representative of harmful flying insects. These are means for killing mosquitoes by evaporating or spraying the insecticidal component into the atmosphere.

  Also, in the outdoors, in order to repel mosquitoes from the body, repellents such as diet may be applied to the arms and legs. Such means can provide a sufficient killing or repellent effect against mosquitoes, but by using insecticides and repellents, there is a possibility of inhaling insecticides diffused in the air, etc. It was not always satisfactory in terms of safety.

Therefore, means that do not use an insecticide or the like have been studied. For example, many mosquito traps that have mosquito attracting means and adhesive means, and attract and capture mosquitoes are known.
Among these, mosquito attracting and capturing devices that use the habit of collecting mosquitoes in carbon dioxide are known to use, for example, dry ice and high-pressure cylinders as carbon dioxide generating means, but dry ice is expensive. It is difficult to handle, and high-pressure carbon dioxide cylinders are difficult to handle and heavy.

These solutions include, for example, 1) a mosquito trap that generates carbon dioxide by heating a bag containing powdered limestone with a heater (see, for example, Patent Document 1), 2) carbonate and acid Mosquito trap with carbon dioxide generating means (for example, see Patent Document 2), 3) Attracting mosquitoes using a carbon dioxide generator that reacts an organic acid and carbonate as one of two or more kinds of attracting means Capture device (see, for example, Patent Document 3), 4) An attracting and collecting device using an effervescent tablet mainly composed of a solid acid and carbonate that is solid at room temperature and generates carbon dioxide when dropped in water (for example, Patent Document 4) is known.
If these methods are used, the handling of the carbon dioxide generator is very simple, light weight, and does not require a large space. In these documents, as means for generating carbon dioxide, acid and alkali may be arranged separately, and water may be added and mixed at the time of use, or acid, alkali and water may be mixed in order at the time of use. It is described that it is possible to do so.

However, those using a heat source such as a heater described in Patent Document 1 are preferably avoided for safety, and carbon dioxide is generated by a chemical reaction such as acid and alkali described in Patent Documents 2 to 4. What is generated is that there is still a problem in that carbon dioxide generation occurs instantaneously and mosquitoes cannot be attracted continuously, and mosquitoes that have mosquito attracting means that can be relieved from the continuity and safety of carbon dioxide generation The present situation is that there is an eager desire for the advent and capture device.
JP 2000-95623 A (Claims, Examples, etc.) JP 2003-61541 A (Claims, Examples, etc.) JP 2000-189030 A (Claims, Examples, etc.) JP-A-6-46 (Claims, Examples, etc.)

  The present invention is to solve this problem in view of the problems and current situation of the prior art, and to provide a safe mosquito attracting and capturing device capable of attracting and capturing mosquitoes in the long term. With the goal.

  As a result of intensive studies to solve the above-described conventional problems, the present inventors have determined that mosquitoes that continuously generate carbon dioxide over a long period of time by combining and using specific components as carbon dioxide generating means. As a result, the present invention has been completed.

That is, the present invention resides in the following (1) and (2).
(1) A mosquito attracting and capturing device comprising an attracting unit for attracting mosquitoes and a capturing unit for capturing mosquitoes, wherein the attracting unit includes at least a carbon dioxide generating unit by a solid acid, a solid alkali and a deliquescent substance. A mosquito attracting and capturing device characterized by comprising:
(2) The mosquito attracting and capturing apparatus according to the above (1), wherein the deliquescent substance is at least one selected from calcium chloride, magnesium chloride, and potassium carbonate.

  According to the present invention, a mosquito attracting and capturing device capable of generating carbon dioxide safely and continuously over a long period of time and capturing mosquitoes over a long period of time is provided.

Hereinafter, embodiments of the present invention will be described in detail.
The mosquito attracting and capturing device of the present invention is a mosquito attracting and capturing device provided with an attracting part for attracting mosquitoes and a capturing part for capturing, wherein the attracting part includes at least a solid acid, a solid alkali, and deliquescence. It has the carbon dioxide generation part by a substance, It is characterized by the above-mentioned.

  In the present invention, the shape of the capture device is not particularly limited as long as it has an opening on the upper surface or side surface, and examples thereof include shapes such as a cylinder, a prism, and a bowl shape. The material is not particularly limited, but plastic is desirable from the viewpoint of economy and workability. Examples of the plastic used include polyethylene, polypropylene, vinyl chloride resin, and acrylic resin.

The attracting part of the present invention is a carbon dioxide generating part that generates carbon dioxide over a long period of time. It is preferable to install the carbon dioxide generating part serving as the attracting part inside the capturing device. By installing it inside the capture device, carbon dioxide generated in the capture device stays, and it becomes possible to attract mosquitoes more effectively.
In the present invention, at least a solid acid, a solid alkali, and a deliquescent substance are used in combination for the generation of carbon dioxide. These solid acid, solid alkali, and deliquescent material may be mixed, or may be separately installed so as to be partially in contact.
By installing in this way, a small amount of moisture in the air adsorbed on the deliquescent substance is used as the initiator of the reaction, and the solid acid and solid alkali slowly cause neutralization, generating carbon dioxide continuously over a long period of time. It will be something that can be made.

  The solid acid that can be used is not particularly limited. For example, ascorbic acid, adipic acid, benzoic acid, citric acid, glutamic acid, succinic acid, oxalic acid, tartaric acid, sorbic acid, fumaric acid, boric acid , Maleic acid, malonic acid, malic acid, and the like, and one or more of these can be used, and succinic acid and citric acid are particularly preferable from the viewpoint of cost and usability.

  Further, the solid alkali that can be used is not particularly limited, and examples thereof include sodium hydrogen carbonate, sodium carbonate, potassium hydrogen carbonate, potassium carbonate, calcium carbonate, lithium hydrogen carbonate, lithium carbonate and the like. Of these, one or more of these can be used, and sodium bicarbonate is particularly preferred from the viewpoint of cost and usability.

  The mixing ratio of these solid acids and solid alkalis is 1:10 to 10: 1, preferably 1: 5 to 5: 1 in terms of molar ratio. Outside this range (1:10 to 10: 1), solid acids or solid alkalis that are not consumed in the neutralization reaction are produced, which may not be economical.

The deliquescent substance that can be used is not particularly limited as long as it has deliquescence, but it is one kind selected from calcium chloride, magnesium chloride, and potassium carbonate from the viewpoints of economy and handleability. Or it is preferable to use 2 or more types. Here, potassium carbonate can have both a deliquescent substance and a function as a solid alkali.
Further, the average particle size (hereinafter simply referred to as “particle size”) of the deliquescent material is not particularly limited, but in the case of fine powder of 10 μm or less, the surface area becomes large, so that it is in the air compared to coarse particles. In some cases, the water adsorption proceeds rapidly, and the neutralization reaction proceeds quickly, which does not conform to the intention of the present invention. Accordingly, it is desirable that the particle size exceeds 10 μm, preferably 20 to 2000 μm.

The mixing ratio of these solid acid / solid alkali and deliquescent substance is 0.01 to 100% by mass (hereinafter, referred to as “addition amount”) based on the total amount of solid acid and solid alkali. It is simply referred to as “mass%”), preferably 0.1 to 50%, and more preferably 0.1 to 20%.
If the amount of deliquescent material is less than 0.01%, the neutralization reaction does not proceed, and the time lag from the start of use until the mosquito incentive effect is exerted is large, which may cause problems. On the other hand, if it exceeds 100%, adsorption of moisture in the air occurs at once, and the neutralization reaction proceeds rapidly, so that the intention of the present invention may not be met.

As a capture part in the attraction capture apparatus of this invention, in order to capture the mosquito which invaded in the capture apparatus, what provided the adhesive layer on the inner surface of the said capture container is mentioned.
Since mosquitoes usually stop on a vertical surface, it is particularly preferable to provide an adhesive layer on the side surface of the inner surface of the capture container. The type of pressure-sensitive adhesive to be used is not particularly limited as long as it meets this purpose, and examples thereof include polybutene and polyisobutene.

  It is preferable to install a moisture absorption preventing film at the opening of the container in the attracting and capturing apparatus of the present invention. By peeling off the film, adsorption of moisture in the air by the deliquescent material is started, a neutralization reaction between the solid acid and the solid alkali occurs, and mosquito attraction is started. The material is not particularly limited as long as it prevents moisture absorption in the air before using the mosquito trap.

FIG. 1 shows an example of a specific embodiment of the mosquito attracting and capturing apparatus of the present invention.
As shown in FIG. 1, the mosquito attracting and capturing apparatus A of the present embodiment uses a cylindrical plastic container 1 serving as a capturing apparatus having an opening 2 at the top. A container having a bottom diameter of 10 cm and a height of 15 cm was used.
An adhesive layer 3 serving as a capturing part was provided on both side surfaces of the upper part of the container 1, and a carbon dioxide generating part 4 was provided at the bottom of the container 1. This carbon dioxide generating part 4 throws the deliquescent substance 4c into the container 1 and then mixes the solid acid 4a and solid alkali 4b in the upper part, and throws the mixed solid into the container 1 until the height becomes 5 cm from the bottom. Is made up of.
In this mosquito attracting and capturing apparatus A, the carbon dioxide generating unit 4 uses a small amount of moisture in the air adsorbed to the deliquescent material 4c as a reaction initiator, and the solid acid 4a and the solid alkali 4b cause a neutralization reaction slowly. , Carbon dioxide can be continuously generated over a long period of time, mosquitoes can be attracted, and the mosquitoes can be captured with the adhesive layer 3 serving as a capture unit, and this mosquito attracting and capturing can be captured safely over a long period of time It will be a thing.

The mosquito attracting and capturing apparatus of the present invention is configured as described above, but at least a solid acid, a solid alkali, and a deliquescent substance are used in the attracting part for attracting mosquitoes for a long time. The other configuration is not particularly limited as long as it has a carbon dioxide generating section that continuously generates, and various modifications can be made within the scope of the technical idea of the present invention.
For example, in the present invention, an attracting means other than carbon dioxide can be used in combination. Examples of attracting means used in combination include lactic acid, lactic acid ester, fatty acid, retinol acetate, and acetate ester.
Moreover, it is good also considering the capture part as black and blue which are easy to attract a mosquito.

  EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to the following Example etc.

[Examples 1 to 6 and Comparative Example 1]
A mosquito capture device having the following configuration was prepared, and a mosquito attracting and capturing test was performed by the following method, and the following evaluation criteria were evaluated.
(Production of mosquito attracting device)
The mosquito trapping apparatus used in the examples and comparative examples will be described. As shown in FIG. 1, a cylindrical acrylic resin plastic container 1 having an opening 2 at the top was used. A container having a bottom diameter of 10 cm and a height of 15 cm was used.
The pressure-sensitive adhesive layer 3 was adhered to both side surfaces of the upper portion of the container 1. In this test, a pressure-sensitive adhesive tape was simply applied to form a pressure-sensitive adhesive layer.
A carbon dioxide generator 4 was provided at the bottom of the container 1. After adding the deliquescent substances (calcium chloride, magnesium chloride, potassium carbonate) shown in Examples 1 to 6 in Table 1 to the container 1, the solid acid and the solid alkali were mixed in the mixing ratio shown in Table 1, and the container 1 The mixed solid was added to a height of 5 cm from the bottom. In Comparative Example 1, water is added after the mixed solid is added to the container 1. Moreover, in Examples 5-6, the substance (lactic acid, retinol acetate) shown in following Table 1 was further apply | coated or added to the adhesive layer 3 which is a mosquito's accretion surface as an attractant. The amount added is also shown in Table 1 below.

(Mosquito attracting test method and its evaluation)
The mosquito attracting and capturing test was carried out by installing the above-described capturing device outdoors (mid-August) for 3 days and confirming the mosquito capturing status at each time shown in Table 2. In Examples 1 to 6, the test was started when a deliquescent substance and a solid acid / solid alkali were added to the container 1. In Comparative Example 1, the experiment was started when water was added to the mixed solid.
The results of mosquito attracting and capturing were evaluated according to the following evaluation criteria.
The evaluation results are shown in Table 2 below.
Evaluation criteria:
◎: Capture 2 or more mosquitoes.
○: Capture one mosquito.
X: Mosquitoes cannot be captured.

Each compounding component (used raw material) used in Table 1 is as follows.
Sodium bicarbonate: manufactured by Kanto Chemical Co., Ltd.
Succinic acid: Pure Chemical Co., Ltd., special grade reagent, 99.5% pure
Citric acid: Pure Chemical Co., Ltd., 1st grade reagent, 99.5% pure
Calcium chloride: manufactured by Kanto Chemical Co., Ltd., special grade reagent, pure 95%, particle size 150-250 μm sieved product Magnesium chloride: Junsei Chemical Co., Ltd., pure grade reagent, pure fraction 97%, particle size 150-250 μm sieved product L-lactic acid: Tokyo Chemical Industry Co., Ltd., pure content 85% or more Retinol acetate: ACROS ORGANICS, 1.5mio IU / gr, dissolved and stabilized in sunflower oil.

As is clear from the results of Tables 1 and 2, Examples 1 to 6 that fall within the scope of the present invention can capture mosquitoes over a longer period of time than Comparative Example 1 that falls outside the scope of the present invention. It turned out to be a mosquito attracting and capturing device.
FIG. 2 is a drawing (graph) showing the cumulative number of mosquitoes captured in Example 1 and Comparative Example 1 over time.
From these results, it became clear that the mosquito attracting and capturing apparatus of the present invention can generate carbon dioxide safely and continuously over a long period of time and capture mosquitoes over a long period of time.

It is the schematic which shows an example of specific embodiment of the mosquito attracting and capturing apparatus of this invention. It is drawing (graph) which looked at the accumulation number of mosquitoes of Example 1 and comparative example 1 over time.

Explanation of symbols

A Mosquito attracting and capturing device 1 Container 2 Opening 3 Capturing part (adhesive layer)
4 Carbon dioxide generator 4a Solid acid 4b Solid alkali 4c Deliquescent material

Claims (2)

  A mosquito attracting and capturing device comprising an attracting unit for attracting mosquitoes and a capturing unit for capturing mosquitoes, wherein the attracting unit has at least a carbon dioxide generating unit with a solid acid, a solid alkali and a deliquescent substance. Mosquito attracting and capturing device.   The mosquito attracting and capturing device according to claim 1, wherein the deliquescent material is at least one selected from calcium chloride, magnesium chloride, and potassium carbonate.

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