JP7125296B2 - pest control device - Google Patents

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JP7125296B2
JP7125296B2 JP2018136774A JP2018136774A JP7125296B2 JP 7125296 B2 JP7125296 B2 JP 7125296B2 JP 2018136774 A JP2018136774 A JP 2018136774A JP 2018136774 A JP2018136774 A JP 2018136774A JP 7125296 B2 JP7125296 B2 JP 7125296B2
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JP2020010664A (en
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高明 小松
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Lec Inc
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本発明は、害虫駆除装置に関する。 The present invention relates to a pest control device.

液体ベイト剤（薬液）を害虫に喫食させて駆除する害虫駆除装置としては、液体ベイト剤を含浸させる含浸体と、前記含浸体を収容する容器とを備え、前記含浸体の一部を露出させる装置が知られている。例えばゴキブリ用として、少量の液体ベイト剤を吸い上げた吸液芯等や、液体ベイト剤を含浸させた含浸シートの一部を露出させた状態で、液体ベイト剤をゴキブリに喫食させる装置が提案されている（特許文献１、２）。 A pest-control device for exterminating pests by feeding them with a liquid bait (chemical solution) includes an impregnated body impregnated with the liquid bait and a container housing the impregnated body, with a part of the impregnated body exposed. devices are known. For example, for cockroaches, a device has been proposed that allows cockroaches to eat the liquid bait with a liquid-absorbing wick that sucks up a small amount of liquid bait or a part of an impregnated sheet impregnated with the liquid bait exposed. (Patent Documents 1 and 2).

特開２０１５－３３３７４号公報JP 2015-33374 A 特開２０１２－１５７３２２号公報JP 2012-157322 A

しかし、特許文献１、２のような害虫駆除装置では、充分な殺虫効果が得られにくいことがある。また、含浸体の露出部が多いほど、害虫が前記露出部を認知する確率は高まると考えられるが、水性液体ベイト剤の場合、液体ベイト剤が経時的に揮散することで長期間の連続使用が困難である。特にゴキブリ用の液体ベイト剤は水分を多く含有するため、経時的な揮散が顕著である。 However, it is sometimes difficult to obtain a sufficient insecticidal effect with pest control devices such as those disclosed in Patent Documents 1 and 2. In addition, it is considered that the more exposed parts of the impregnated body, the higher the probability that pests will recognize the exposed parts. is difficult. In particular, liquid baits for cockroaches contain a large amount of water, so volatilization over time is remarkable.

本発明は、充分な殺虫効果が得られ、また液体ベイト剤が揮散しにくく殺虫効果が長持ちしやすい害虫駆除装置を提供することを目的とする。 It is an object of the present invention to provide a pest-control device capable of obtaining a sufficient insecticidal effect, preventing volatilization of a liquid bait agent, and easily maintaining the insecticidal effect for a long time.

本発明は、以下の構成を有する。
［１］液体ベイト剤を含浸させた含浸体と、前記含浸体が収容される容器とを備え、前記含浸体に含浸させた液体ベイト剤を害虫に喫食させる害虫駆除装置であって、
前記含浸体の少なくとも上面の一部が気中に露出した露出部が１個以上形成され、
平面視で前記露出部を囲う喫食領域の周囲長（ｍｍ）をＬ、前記露出部の面積（ｍｍ２）をＳとしたとき、Ｓ／Ｌが１．１～５．０である害虫駆除装置。
［２］前記Ｓが１５～５００ｍｍ２である、［１］に記載の害虫駆除装置。
［３］前記液体ベイト剤の水分含有率が３０質量％以上である、［１］又は［２］に記載の害虫駆除装置。
［４］前記露出部の平面視形状が環状である、［１］～［３］のいずれかに記載の害虫駆除装置。 The present invention has the following configurations.
[1] A pest-control device comprising an impregnated body impregnated with a liquid bait and a container housing the impregnated body, wherein pests eat the liquid bait impregnated in the impregnated body,
At least a part of the upper surface of the impregnated body is exposed to the air, and at least one exposed portion is formed,
A pest-control device wherein S/L is 1.1 to 5.0, where L is the perimeter (mm) of the eating area surrounding the exposed portion in plan view, and S is the area (mm 2 ) of the exposed portion. .
[2] The pest control device according to [1], wherein the S is 15 to 500 mm 2 .
[3] The pest control device according to [1] or [2], wherein the water content of the liquid bait is 30% by mass or more.
[4] The pest-control device according to any one of [1] to [3], wherein the exposed portion has a ring shape in plan view.

本発明の害虫駆除装置は、充分な殺虫効果が得られ、また液体ベイト剤が揮散しにくく殺虫効果が長持ちしやすい。 INDUSTRIAL APPLICABILITY The pest-control device of the present invention provides a sufficient insecticidal effect, and the liquid bait does not volatilize easily, so the insecticidal effect tends to last for a long time.

本発明の害虫駆除装置の一例を示した斜視図である。1 is a perspective view showing an example of a pest control device of the present invention; FIG. 図１の害虫駆除装置の平面図である。2 is a plan view of the pest control device of FIG. 1; FIG. 図１の害虫駆除装置の縦断面図である。2 is a vertical cross-sectional view of the pest control device of FIG. 1; FIG. 本発明の害虫駆除装置の一例を示した平面図である。1 is a plan view showing an example of a pest control device of the present invention; FIG. 本発明の害虫駆除装置の一例を示した平面図である。1 is a plan view showing an example of a pest control device of the present invention; FIG. 本発明の害虫駆除装置の一例を示した平面図である。1 is a plan view showing an example of a pest control device of the present invention; FIG.

本発明の害虫駆除装置は、液体ベイト剤を含浸させた含浸体と、含浸体が収容される容器とを備え、含浸体に含浸させた液体ベイト剤を害虫に喫食させる害虫駆除装置である。本発明の害虫駆除装置においては、含浸体の少なくとも上面の一部が気中に露出した露出部が１個以上形成されている。また、平面視で露出部を囲う喫食領域の周囲長（ｍｍ）をＬ、露出部の面積（ｍｍ２）をＳとしたとき、Ｓ／Ｌが１．１～５．０である。 A pest-control device of the present invention is a pest-control device that includes an impregnated body impregnated with a liquid bait and a container that houses the impregnated body, and that allows pests to eat the liquid bait impregnated in the impregnated body. In the pest-control device of the present invention, at least a part of the upper surface of the impregnated body is exposed to the atmosphere, and at least one exposed portion is formed. Further, when L is the peripheral length (mm) of the eating area surrounding the exposed portion in plan view, and S is the area (mm 2 ) of the exposed portion, S/L is 1.1 to 5.0.

本発明において、害虫駆除装置の含浸体の露出部を囲う喫食領域は、平面視において、露出部の外縁のみ、又は、露出部の外縁と露出部の外縁の角を通るか又は露出部の外縁に接する直線とによって、内側に向かって凹む凹部がないように設定される。複数の露出部がある場合、平面視で、露出部の外縁の角を通るか又は露出部の外縁に接する直線によって、最も外側の露出部を囲う凹部のない領域を設定して喫食領域とする。平面視で外縁形状に凹部が存在する露出部がある場合、前記凹部の両端部において露出部の外縁の角を通るか又は露出部の外縁に接する直線を引いて前記凹部が含まれる領域を喫食領域とする。 In the present invention, the eating area surrounding the exposed portion of the impregnated body of the pest-control device is, in plan view, only the outer edge of the exposed portion, or passes through the corner between the outer edge of the exposed portion and the outer edge of the exposed portion, or the outer edge of the exposed portion. It is set so that there is no recessed portion that is recessed toward the inside by a straight line that touches the . When there are multiple exposed parts, a straight line that passes through the corners of the outer edge of the exposed part or touches the outer edge of the exposed part in plan view sets a region without recesses surrounding the outermost exposed part as the eating area. . When there is an exposed portion having a recessed portion in the outer edge shape in a plan view, a straight line passing through the corners of the outer edge of the exposed portion or in contact with the outer edge of the exposed portion is drawn at both ends of the recessed portion to eat the area including the recessed portion. area.

以下、本発明の害虫駆除装置の一例について、図面に基づいて説明する。なお、以下の説明において例示される図の寸法等は一例であって、本発明はそれらに必ずしも限定されるものではなく、その要旨を変更しない範囲で適宜変更して実施することが可能である。 An example of the pest control device of the present invention will be described below with reference to the drawings. It should be noted that the dimensions and the like of the drawings illustrated in the following description are only examples, and the present invention is not necessarily limited to them, and can be implemented with appropriate changes within the scope of not changing the gist of the present invention. .

害虫駆除装置１は、図１～３に示すように、液体ベイト剤を含浸させた含浸体１０と、含浸体１０が収容される容器２０とを備えている。容器２０は、容器本体２２と、蓋部材２４とを備えている。容器本体２２は、平面視形状が円形状の底面部２２ａと、底面部２２ａの外周端部から立ち上がる側面部２２ｂとを備えている。 As shown in FIGS. 1 to 3, the pest-control device 1 includes an impregnated body 10 impregnated with a liquid bait and a container 20 in which the impregnated body 10 is housed. The container 20 has a container body 22 and a lid member 24 . The container body 22 includes a bottom portion 22a having a circular shape in a plan view, and side portions 22b rising from the outer peripheral edge of the bottom portion 22a.

害虫駆除装置１では、容器２０の容器本体２２内に平面視形状が円形状の含浸体１０が収容された状態で、容器本体２２の上部開口部が蓋部材２４で塞がれている。蓋部材２４には円環状の穴２６が形成されおり、容器２０内の含浸体１０の一部が穴２６の部分で露出して露出部１２を形成している。このように、害虫駆除装置１においては、円環状の露出部１２が１個形成されている。 In the pest-control device 1 , the top opening of the container body 22 is closed with the lid member 24 while the impregnated body 10 having a circular shape in plan view is housed in the container body 22 of the container 20 . A ring-shaped hole 26 is formed in the lid member 24 , and a portion of the impregnated body 10 in the container 20 is exposed through the hole 26 to form the exposed portion 12 . Thus, in the pest-control device 1, one annular exposed portion 12 is formed.

容器２０の態様は、この例の態様には限定されず、適宜設計できる。
容器２０を形成する材料としては、液体ベイト剤の性状に影響を与えないものであればよく、例えば、ポリプロピレン、ポリエチレン等のオレフィンの他、ポリエチレンテレフタレート（ＰＥＴ）等が挙げられる。容器２０を形成する材料は、１種であってもよく、２種以上であってもよい。
容器２０は、公知の方法で製造できる。 The mode of the container 20 is not limited to the mode of this example, and can be designed as appropriate.
Any material may be used for forming the container 20 as long as it does not affect the properties of the liquid bait. Examples thereof include olefins such as polypropylene and polyethylene, as well as polyethylene terephthalate (PET). The material forming the container 20 may be one kind, or two or more kinds.
Container 20 can be manufactured by known methods.

この例の含浸体１０は、平面視形状が円形の含浸シートである。なお、含浸体１０の態様は、含浸シートには限定されず、例えば、液体ベイト剤を吸い上げる柱状の含浸体（吸液芯）等であってもよい。 The impregnated body 10 of this example is an impregnated sheet having a circular plan view shape. The form of the impregnated body 10 is not limited to the impregnated sheet, and may be, for example, a columnar impregnated body (liquid absorbing core) that absorbs the liquid bait agent.

含浸体１０としては、例えば、ガラス繊維、合成繊維（ナイロン、ポリプロピレン、ポリエステル等）、天然繊維等の繊維の熱融着や接着剤による接着により形成されるもの、不織布や木材から形成されるもの、又は、無機及び有機物質から選択される１種以上の粉末からなるマトリックスを樹脂バインダーと共に練りこんで、押し出し成型や圧縮成型等によって成型したもの等が挙げられる。 The impregnated body 10 is formed, for example, by heat-sealing fibers such as glass fiber, synthetic fiber (nylon, polypropylene, polyester, etc.), or natural fiber, or by bonding with an adhesive, or formed of non-woven fabric or wood. Alternatively, a matrix made of one or more kinds of powders selected from inorganic and organic substances is kneaded with a resin binder and molded by extrusion molding, compression molding, or the like.

害虫駆除装置１における喫食領域３０は、平面視で、円環状の露出部１２の外縁で形成される円形状の領域である。
平面視において、露出部１２を囲う喫食領域３０の周囲長（ｍｍ）をＬ、露出部１２の面積（ｍｍ２）をＳとする。このとき、Ｓ／Ｌは、１．１～５．０であり、１．２～４．０が好ましく、１．２～２．５がより好ましい。Ｓ／Ｌが前記範囲の下限値以上であれば、害虫が露出部１２を認知しやすくなり、害虫の喫食行動が阻害されにくく、高い殺虫効果が得られやすくなる。Ｓ／Ｌが前記範囲の上限値以下であれば、液体ベイト剤中の水分の揮散速度が充分に遅くなり、殺虫効果が長持ちしやすい。 The eating area 30 in the pest-control device 1 is a circular area formed by the outer edge of the annular exposed portion 12 in plan view.
In plan view, let L be the peripheral length (mm) of the eating area 30 surrounding the exposed part 12, and let S be the area (mm 2 ) of the exposed part 12 . At this time, S/L is 1.1 to 5.0, preferably 1.2 to 4.0, more preferably 1.2 to 2.5. When the S/L is equal to or higher than the lower limit of the above range, pests are likely to recognize the exposed portion 12, the eating behavior of pests is less likely to be inhibited, and a high insecticidal effect is likely to be obtained. When the S/L is equal to or less than the upper limit of the above range, the volatilization rate of water in the liquid bait becomes sufficiently slow, and the insecticidal effect tends to last longer.

この例において、平面視での露出部１２の内側の円の直径をｒ（ｍｍ）、外側の円の直径をＲ（ｍｍ）とすると、Ｓ／Ｌの値は、Ｓ／Ｌ＝（πＲ２－πｒ２）／２πＲ＝（Ｒ２－ｒ２）／２Ｒから算出される。
Ｓ／Ｌを制御する方法は、特に限定されない。例えば、含浸体の上面を覆う蓋部材に形成する穴の形状及び大きさを調節してＳ／Ｌを制御する方法、含浸体自体の平面視形状を調節してＳ／Ｌを制御する方法等が挙げられる。 In this example, assuming that the diameter of the inner circle of the exposed portion 12 in plan view is r (mm) and the diameter of the outer circle is R (mm), the value of S/L is S/L=(πR 2 −πr 2 )/2πR=(R 2 −r 2 )/2R.
A method for controlling the S/L is not particularly limited. For example, a method of controlling the S/L by adjusting the shape and size of a hole formed in a cover member covering the upper surface of the impregnated body, a method of controlling the S/L by adjusting the plane view shape of the impregnated body itself, etc. is mentioned.

Ｓは、１５～５００ｍｍ２が好ましく、２０～４００ｍｍ２がより好ましく、２０～３００ｍｍ２がさらに好ましい。Ｓが前記範囲の下限値以上であれば、害虫が露出部１２を認知しやすくなり、害虫の喫食行動が阻害されにくく、高い殺虫効果が得られやすくなる。Ｓが前記範囲の上限値以下であれば、液体ベイト剤中の水分の揮散速度が充分に遅くなり、殺虫効果が長持ちしやすい。 S is preferably 15 to 500 mm 2 , more preferably 20 to 400 mm 2 and even more preferably 20 to 300 mm 2 . When S is equal to or higher than the lower limit of the above range, pests are likely to recognize the exposed portion 12, the eating behavior of pests is less likely to be inhibited, and a high insecticidal effect is likely to be obtained. When S is equal to or less than the upper limit of the above range, the volatilization rate of water in the liquid bait becomes sufficiently slow, and the insecticidal effect tends to last longer.

Ｌが大きいほど、害虫駆除装置において露出部が広範囲に分布していることを意味する。Ｌは、１０～１００ｍｍが好ましく、４０～８０ｍｍがより好ましく、５０～８０ｍｍがさらに好ましい。Ｌが前記範囲の下限値以上であれば、害虫の喫食行動が阻害されにくく、高い殺虫効果が得られやすくなる。Ｌが前記範囲の上限値以下であれば、液体ベイト剤中の水分の揮散速度が充分に遅くなり、殺虫効果が長持ちしやすい。 A larger L means a wider distribution of exposed parts in the pest-control device. L is preferably 10 to 100 mm, more preferably 40 to 80 mm, even more preferably 50 to 80 mm. When L is at least the lower limit of the above range, the eating behavior of pests is less likely to be inhibited, and a high insecticidal effect is likely to be obtained. When L is equal to or less than the upper limit of the above range, the volatilization rate of water in the liquid bait becomes sufficiently slow, and the insecticidal effect tends to last longer.

本発明では、この例のように含浸体の露出部の平面視形状を環状とすることが好ましい。これにより、露出部からの液体ベイト剤の揮散量を低減しつつ、露出部をより広範囲に分布させることができる。そのため、殺虫効果を長期間持続させつつ、害虫が露出部をより認知しやすくして殺虫効果をより高めることができる。
なお、含浸体の露出部の平面視形状を環状とする場合、円環状には限定されず、例えば、矩形状の環状、三角形状の環状等であってもよい。また、含浸体の露出部の平面視形状は、円形状、矩形状等、環状でなくてもよい。 In the present invention, it is preferable that the exposed portion of the impregnated body has an annular shape in plan view as in this example. As a result, the exposed portion can be distributed over a wider range while reducing the volatilization amount of the liquid bait agent from the exposed portion. Therefore, the insecticidal effect can be maintained for a long period of time, and the exposed part can be more easily recognized by pests, and the insecticidal effect can be further enhanced.
When the planar view shape of the exposed portion of the impregnated body is annular, it is not limited to an annular shape, and may be, for example, a rectangular annular shape, a triangular annular shape, or the like. Further, the planar view shape of the exposed portion of the impregnated body may be circular, rectangular, or other than annular.

液体ベイト剤としては、特に限定されず、害虫の種類に応じて公知の液体ベイト剤を適宜使用できる。液体ベイト剤の具体例としては、例えば、ネオニコチノイド系のジノテフラン、フェニルピラゾール系のフィプロニル、アミジノヒドラジゾン系のヒドラメチルノン、ホウ酸等の殺虫成分を含む水溶液が挙げられる。 The liquid bait is not particularly limited, and a known liquid bait can be appropriately used depending on the type of pest. Specific examples of liquid baits include aqueous solutions containing insecticidal components such as neonicotinoid dinotefuran, phenylpyrazole fipronil, amidinohydrazizone hydramethylnon, and boric acid.

液体ベイト剤の水分含有率は、３０質量％以上が好ましく、４０質量％以上がより好ましく、５０質量％以上がさらに好ましい。液体ベイト剤の水分含有率が前記下限値以上であれば、液体ベイト剤の喫食性が向上し、高い殺虫効果が得られやすい。本発明の害虫駆除装置は、液体ベイト剤の水分含有率が多くても、揮散による殺虫効果の低下を充分に抑制できる。
液体ベイト剤の水分含有率は、殺虫成分の溶解の点では、９８質量％以下が好ましく、９５質量％以下がより好ましい。
なお、水分含有率は汎用試験法であるカールフィッシャー法により測定される。 The water content of the liquid bait is preferably 30% by mass or more, more preferably 40% by mass or more, and even more preferably 50% by mass or more. If the moisture content of the liquid bait is at least the above lower limit, the liquid bait has improved edibility, and a high insecticidal effect is likely to be obtained. The pest-control device of the present invention can sufficiently suppress the deterioration of the insecticidal effect due to volatilization even if the water content of the liquid bait is high.
The water content of the liquid bait is preferably 98% by mass or less, more preferably 95% by mass or less, from the viewpoint of dissolving the insecticidal component.
The moisture content is measured by the Karl Fischer method, which is a general-purpose test method.

液体ベイト剤には、本発明の目的に反しない範囲で、任意成分をさらに配合できる。任意成分としては、食餌成分、増粘剤、殺菌成分、界面活性剤、着色剤、着香剤、防腐剤、誤食防止剤が挙げられる。これらは特に限定されず、従来医薬品や医薬部外品、化粧品等に用いられているものであればよい。 The liquid bait may further contain optional ingredients within the scope of the object of the present invention. Optional ingredients include food ingredients, thickeners, bactericidal ingredients, surfactants, coloring agents, flavoring agents, preservatives, and accidental ingestion prevention agents. These are not particularly limited, and may be those conventionally used in pharmaceuticals, quasi-drugs, cosmetics, and the like.

液体ベイト剤の製造方法は、特に限定されず、公知の製造方法から選択される。例えば、溶媒に、殺虫成分、及び必要に応じて使用する任意成分を加えて撹拌することで、液体ベイト剤が得られる。 The method for producing the liquid bait is not particularly limited, and is selected from known production methods. For example, a liquid bait can be obtained by adding an insecticidal component and optionally an optional component to a solvent and stirring the mixture.

本発明の害虫駆除装置の使用方法、すなわち害虫駆除方法は、特に限定されず、例えば、本発明の害虫駆除装置を対象害虫が活動する場所に設置する方法等が挙げられる。設置する害虫駆除装置の数は特に限定されず、１つでもよいし、２つ以上でもよい。 The method of using the pest-control device of the present invention, that is, the pest-control method is not particularly limited, and examples thereof include a method of installing the pest-control device of the present invention in a place where target pests act. The number of installed pest control devices is not particularly limited, and may be one or two or more.

以上説明したように、本発明の害虫駆除装置においては、害虫の餌場となる含浸体の露出部が、Ｓ／Ｌが特定の範囲となるように形成されている。これにより、害虫による露出部の認知性を高めつつ、露出部からの液体ベイト剤の揮散量を低減することができる。そのため、充分な殺虫効果を得つつ、その殺虫効果を長持ちさせることができる。このように、本発明の害虫駆除装置は、長期間の連続使用に特に適している。 As described above, in the pest-control device of the present invention, the exposed portion of the impregnated body, which serves as a feeding ground for pests, is formed so that the S/L falls within a specific range. As a result, it is possible to reduce the amount of the liquid bait volatilized from the exposed portion while increasing the visibility of the exposed portion by pests. Therefore, it is possible to obtain a sufficient insecticidal effect and prolong the insecticidal effect. Thus, the pest-control device of the present invention is particularly suitable for long-term continuous use.

なお、本発明の害虫駆除装置は、前記した害虫駆除装置１には限定されない。
本発明の害虫駆除装置は、図４に例示した害虫駆除装置２であってもよい。図４における図２と同じ部分は同符号を付して説明を省略する。害虫駆除装置２は、平面視形状が三角形状の環状である露出部１２Ａが形成されている以外は、害虫駆除装置１と同様の態様である。
害虫駆除装置２における喫食領域３０Ａは、平面視で、環状の露出部１２Ａの外縁で形成される三形状の領域である。 The pest-control device of the present invention is not limited to the pest-control device 1 described above.
The pest-control device of the present invention may be the pest-control device 2 illustrated in FIG. 4 that are the same as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. The pest-control device 2 has the same configuration as the pest-control device 1 except that an exposed portion 12A having a triangular annular shape in plan view is formed.
The eating area 30A in the pest-control device 2 is a three-shaped area formed by the outer edge of the annular exposed portion 12A in plan view.

含浸体の露出部の数は、１個には限定されず、２個以上であってもよい。例えば、本発明の害虫駆除装置は、図５に例示した害虫駆除装置３であってもよい。図５における図２と同じ部分は同符号を付して説明を省略する。害虫駆除装置３は、平面視形状が円形状の４つの露出部１２Ｂが矩形の各頂点に位置するように形成されている以外は、害虫駆除装置１と同様の態様である。 The number of exposed portions of the impregnated body is not limited to one, and may be two or more. For example, the pest-control device of the present invention may be the pest-control device 3 illustrated in FIG. The same parts in FIG. 5 as those in FIG. The pest-control device 3 has the same configuration as the pest-control device 1 except that four exposed portions 12B, which are circular in plan view, are positioned at the vertices of a rectangle.

害虫駆除装置３における喫食領域３０Ｂは、平面視で、４つの露出部１２Ａのうちの隣り合う２つの露出部１２Ａに接する４本の直線ｋと、４つの露出部１２Ａの外縁とで形成される略矩形状の領域である。
含浸体の露出部が複数ある場合、Ｓは平面視における各々の露出部の面積の合計である。
含浸体の露出部の数は、１～１０個が好ましく、１～５個がより好ましい。 The eating area 30B in the pest-control device 3 is formed by four straight lines k in contact with two adjacent exposed portions 12A out of the four exposed portions 12A and the outer edges of the four exposed portions 12A in plan view. It is a substantially rectangular area.
When there are a plurality of exposed portions of the impregnated body, S is the total area of each exposed portion in plan view.
The number of exposed portions of the impregnated body is preferably 1-10, more preferably 1-5.

本発明の害虫駆除装置は、図６に例示した害虫駆除装置４であってもよい。図６における図２と同じ部分は同符号を付して説明を省略する。害虫駆除装置４は、平面視形状が略三日月状の１つの露出部１２Ｃが形成されている以外は、害虫駆除装置１と同様の態様である。
害虫駆除装置４における喫食領域３０Ｃは、平面視で、露出部１２Ｃの内側に向かって凹んだ凹部の両端部で露出部１２Ｃと接する直線ｋと、露出部１２Ｃの外縁とで形成される略半円状の領域である。 The pest-control device of the present invention may be the pest-control device 4 illustrated in FIG. The same parts in FIG. 6 as those in FIG. The pest-control device 4 has the same aspect as the pest-control device 1 except that one exposed portion 12C having a substantially crescent shape in plan view is formed.
The eating area 30C of the pest-control device 4 is, in a plan view, substantially half formed by a straight line k that contacts the exposed portion 12C at both ends of a concave portion recessed toward the inside of the exposed portion 12C and the outer edge of the exposed portion 12C. It is a circular area.

本発明の害虫駆除装置は、例えば、容器から液体ベイト剤を柱状の含浸体（吸液芯）で吸い上げるタイプであってもよい。含浸体を吸液芯とする際に露出部を環状とする場合は、吸液芯を筒状にしてもよく、蓋部材に形成する穴を環状にしてもよい。
本発明の害虫駆除装置は、上部に配置した容器から下方に配置した含浸シートに液体ベイト剤を滴下するタイプであってもよい。 The pest-control device of the present invention may be, for example, of a type in which a columnar impregnated body (liquid-absorbent wick) sucks up the liquid bait agent from a container. When the impregnated body is used as a liquid absorbent core and the exposed portion is annular, the liquid absorbent core may be cylindrical, and the hole formed in the cover member may be annular.
The pest-control device of the present invention may be of a type in which a liquid bait agent is dripped from a container placed above to an impregnated sheet placed below.

本発明の害虫駆除装置は、含浸体に直接手が触れないように着脱可能なカバーシートを取り付けたものであってもよい。カバーシートは、単層の部材であってもよく、複層の部材であってもよい。カバーシートとしては、液体ベイト剤の性状に影響を与えないものであればよく、シーラントフィルム（ポリエチレンフィルムやポリプロピレンフィルム等のオレフィンフィルム）とアルミニウム箔を含む積層フィルムであるアルミラミネートフィルムが好ましい。 The pest-control device of the present invention may be provided with a detachable cover sheet to prevent direct contact with the impregnated body. The cover sheet may be a single-layer member or a multi-layer member. Any cover sheet may be used as long as it does not affect the properties of the liquid bait, and an aluminum laminate film, which is a laminated film containing a sealant film (olefin film such as polyethylene film or polypropylene film) and aluminum foil, is preferred.

以下、実施例によって本発明を具体的に説明するが、本発明は以下の記載によっては限定されない。
［原料］
本実施例で使用した原料を以下に示す。
フィプロニル：住友化学株式会社製、商品名「バクーダ」、
ジノテフラン：林純薬工業株式会社製、商品名「ジノテフラン」、
水アメ：日本コーンスターチ株式会社製、商品名「コーソシラップＨ７５Ｃ」（水分２５％含有）、
水：イオン交換水、
ＤＰＧ：株式会社ＡＤＥＫＡ製、商品名「ＤＰＧ－ＲＦ」、
ＰＯＥ硬化ヒマシ油：ポリオキシエチレン（６０）硬化ヒマシ油、日光ケミカルズ株式会社製、商品名「ＨＣＯ－６０」、
ゴマ油：株式会社カネダ製、商品名「日本薬局方ゴマ油」。 EXAMPLES The present invention will be specifically described below with reference to Examples, but the present invention is not limited by the following description.
[material]
Raw materials used in this example are shown below.
Fipronil: manufactured by Sumitomo Chemical Co., Ltd., trade name "Bakuda",
Dinotefuran: manufactured by Hayashi Pure Chemical Industries Co., Ltd., trade name "Dinotefuran",
Starch candy: manufactured by Nippon Corn Starch Co., Ltd., trade name "Koso Syrup H75C" (containing 25% moisture),
Water: deionized water,
DPG: manufactured by ADEKA Co., Ltd., trade name "DPG-RF",
POE hydrogenated castor oil: Polyoxyethylene (60) hydrogenated castor oil, manufactured by Nikko Chemicals Co., Ltd., trade name "HCO-60",
Sesame oil: manufactured by Kaneda Corporation, trade name "Japanese Pharmacopoeia Sesame Oil".

［製造例１～４］
撹拌機（新東科学株式会社製ＢＬ１２００）により、表１に示す組成で各成分を充分に混合して液体ベイト剤Ａ－１～Ａ－４を調製した。 [Production Examples 1 to 4]
Liquid baits A-1 to A-4 were prepared by sufficiently mixing each component with the composition shown in Table 1 using a stirrer (BL1200 manufactured by Shinto Kagaku Co., Ltd.).

Figure 0007125296000001
Figure 0007125296000001

［実施例１］
シート成形により作製した平面視形状が円形状のプラスチック製の容器本体（高さ：１０ｍｍ、内容積：２０ｍＬ、材質：ポリプロピレン）に、製造例１で得た液体ベイト剤Ａ－１の１６ｇを注ぎ入れた。次いで、含浸体として厚さ１０ｍｍ、直径４０ｍｍの円板状のシート材（王子キノクロス株式会社製、ハトシート）を容器に入れ、液体ベイト剤Ａ－１を含浸体に含浸させた。蓋部材として円形状のプラスチック製フィルム（凸版印刷株式会社製、ＧＬフィルム）を容器本体の上部開口部を覆うように被せてアイロンで容器本体の上端部に熱溶着し、害虫駆除装置を得た。蓋部材には、図５に示すように、直径６．５ｍｍの円形の４つの穴を、辺の長さが１４ｍｍの正方形の各頂点に穴の中心がくるように形成し、それらの穴から含浸体を露出させて露出部とした。
平面視での露出部を囲う喫食領域の周囲長Ｌは７６ｍｍ、露出部の面積Ｓは１３３ｍｍ２、Ｓ／Ｌは１．７４であった。 [Example 1]
Pour 16 g of the liquid bait A-1 obtained in Production Example 1 into a plastic container body (height: 10 mm, internal volume: 20 mL, material: polypropylene) that is circular in plan view and made by sheet molding. I put it in. Next, a disk-shaped sheet material (Hato Sheet, manufactured by Oji Kinocloth Co., Ltd.) having a thickness of 10 mm and a diameter of 40 mm was placed as an impregnated body in a container, and the impregnated body was impregnated with the liquid bait agent A-1. A circular plastic film (GL film, manufactured by Toppan Printing Co., Ltd.) as a lid member was covered so as to cover the upper opening of the container body and was heat-sealed to the upper end of the container body with an iron to obtain a pest control device. . As shown in FIG. 5, the cover member was formed with four circular holes with a diameter of 6.5 mm so that the centers of the holes were at the vertices of a square with a side length of 14 mm. The impregnated body was exposed to form an exposed portion.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 76 mm, the area S of the exposed portion was 133 mm 2 , and the S/L was 1.74.

［実施例２］
図４に示すように、露出部の平面視形状が三角形状の環状となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。環状の露出部は、外周が１辺の長さ２３ｍｍの正三角形、内周が１辺の長さ１５ｍｍの正三角形となるようにした。
平面視での露出部を囲う喫食領域の周囲長Ｌは６９ｍｍ、露出部の面積Ｓは１３２ｍｍ２、Ｓ／Ｌは１．９１であった。 [Example 2]
As shown in FIG. 4, a pest-control device was obtained in the same manner as in Example 1, except that the hole in the cover member was adjusted so that the exposed portion had a triangular annular shape in plan view. The annular exposed portion had an equilateral triangle with a side length of 23 mm on the outer periphery and an equilateral triangle with a side length of 15 mm on the inner periphery.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 69 mm, the area S of the exposed portion was 132 mm 2 , and the S/L was 1.91.

［実施例３］
図２に示すように、露出部の平面視形状が円環状となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。環状の露出部は、外周が直径１９ｍｍの円、内周が直径１４ｍｍの円となるようにした。
平面視での露出部を囲う喫食領域の周囲長Ｌは６０ｍｍ、露出部の面積Ｓは１３０ｍｍ２、Ｓ／Ｌは２．１７であった。 [Example 3]
As shown in FIG. 2, a pest-control device was obtained in the same manner as in Example 1, except that the hole in the cover member was adjusted so that the exposed portion had an annular shape in plan view. The annular exposed portion had an outer circumference of a circle with a diameter of 19 mm and an inner circumference of a circle with a diameter of 14 mm.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 60 mm, the area S of the exposed portion was 130 mm 2 , and the S/L was 2.17.

［実施例４］
露出部の平面視形状が縦１３ｍｍ×横１０ｍｍの長方形となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。
平面視での露出部を囲う喫食領域の周囲長Ｌは４６ｍｍ、露出部の面積Ｓは１３０ｍｍ２、Ｓ／Ｌは２．８３であった。 [Example 4]
A pest-control device was obtained in the same manner as in Example 1, except that the hole in the lid member was adjusted so that the exposed portion had a rectangular shape of 13 mm long by 10 mm wide in plan view.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 46 mm, the area S of the exposed portion was 130 mm 2 , and S/L was 2.83.

［実施例５］
露出部の平面視形状が直径１３ｍｍの円形状となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。
平面視での露出部を囲う喫食領域の周囲長Ｌは４１ｍｍ、露出部の面積Ｓは１３３ｍｍ２、Ｓ／Ｌは３．２５であった。 [Example 5]
A pest-control device was obtained in the same manner as in Example 1, except that the hole in the cover member was adjusted so that the exposed portion had a circular shape with a diameter of 13 mm in plan view.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 41 mm, the area S of the exposed portion was 133 mm 2 , and S/L was 3.25.

［実施例６］
露出部の平面視形状が１辺の長さが２０ｍｍの正方形となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。
平面視での露出部を囲う喫食領域の周囲長Ｌは８０ｍｍ、露出部の面積Ｓは４００ｍｍ２、Ｓ／Ｌは５．００であった。 [Example 6]
A pest-control device was obtained in the same manner as in Example 1, except that the hole in the lid member was adjusted so that the exposed portion had a square shape with a side length of 20 mm in plan view.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 80 mm, the area S of the exposed portion was 400 mm 2 , and S/L was 5.00.

［実施例７～９］
液体ベイト剤Ａ－１を液体ベイト剤Ａ－２～Ａ－４に変更した以外は、実施例１と同様にして害虫駆除装置を得た。 [Examples 7-9]
A pest-control device was obtained in the same manner as in Example 1, except that the liquid bait A-1 was changed to liquid baits A-2 to A-4.

［比較例１］
露出部の平面視形状が直径３０ｍｍの円形状となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。
平面視での露出部を囲う喫食領域の周囲長Ｌは９４ｍｍ、露出部の面積Ｓは７０７ｍｍ２、Ｓ／Ｌは７．５０であった。 [Comparative Example 1]
A pest-control device was obtained in the same manner as in Example 1, except that the hole in the cover member was adjusted so that the exposed portion had a circular shape with a diameter of 30 mm in plan view.
The peripheral length L of the eating region surrounding the exposed portion in plan view was 94 mm, the area S of the exposed portion was 707 mm 2 , and S/L was 7.50.

［比較例２］
露出部の平面視形状が直径４ｍｍの円形状となるように蓋部材の穴を調節した以外は、実施例１と同様にして害虫駆除装置を得た。
平面視での露出部を囲う喫食領域の周囲長Ｌは１２．６ｍｍ、露出部の面積Ｓは１２．６ｍｍ２、Ｓ／Ｌは１．００であった。 [Comparative Example 2]
A pest-control device was obtained in the same manner as in Example 1, except that the hole in the cover member was adjusted so that the exposed portion had a circular shape with a diameter of 4 mm in plan view.
The peripheral length L of the eating area surrounding the exposed portion in plan view was 12.6 mm, the area S of the exposed portion was 12.6 mm 2 , and S/L was 1.00.

［評価方法］
（殺虫効果）
縦５ｃｍ×横７ｃｍの紙を蛇腹状に折って縦５ｃｍ×横５ｃｍの大きさにしたものを０．１３ｍ２の試験区内に設置して潜伏場所を形成した。前記試験区内に水とマウス用固形飼料（日本クレア社製ＣＥ－２）を１個配置し、チャバネゴキブリ２０頭を放ち、一晩（約１６時間）試験区に馴化させた。馴化後、害虫駆除装置を設置し、２４時間後のチャバネゴキブリの死亡個体数を計測し、致死率を求め、以下の評価基準に従って殺虫効果を評価した。
＜評価基準＞
◎◎：致死率が１００％である。
◎：致死率が８０％以上１００％未満である。
○：致死率が５０％以上８０％未満である。
△：致死率が３０％以上５０％未満である。
×：致死率が３０％未満である。 [Evaluation method]
(insecticidal effect)
A sheet of paper measuring 5 cm long by 7 cm wide was folded into a bellows shape to a size of 5 cm long by 5 cm wide, and placed in a test area of 0.13 m 2 to form a hiding place. Water and one solid diet for mice (CE-2 manufactured by CLEA Japan, Inc.) were placed in the test area, and 20 German cockroaches were released and acclimatized to the test area overnight (about 16 hours). After acclimation, a pest control device was installed, the number of dead German cockroaches was counted after 24 hours, the mortality rate was determined, and the insecticidal effect was evaluated according to the following evaluation criteria.
<Evaluation Criteria>
◎◎: The fatality rate is 100%.
A: The fatality rate is 80% or more and less than 100%.
○: The fatality rate is 50% or more and less than 80%.
Δ: Mortality rate is 30% or more and less than 50%.
x: The fatality rate is less than 30%.

（長持ち性）
検害虫駆除装置体の初期質量を予め測定しておき、２５℃恒温室内で害虫駆除装置を１か月静置後、再度、害虫駆除装置の質量測定を行い、質量減少量を算出し、以下の評価基準に従って長持ち性（効果持続性、効果持続力）を評価した。
＜評価基準＞
◎：質量減少量が３．５ｇ未満である。
〇：質量減少量が３．５ｇ以上７．０ｇ未満である。
△：質量減少量が７．０ｇ以上１１．０ｇ未満である。
×：質量減少量が１１．０ｇ以上である。 (Long-lasting)
The initial mass of the inspected pest control device body is measured in advance, and after the pest control device is allowed to stand still for one month in a constant temperature room at 25°C, the mass of the pest control device is measured again, and the amount of mass reduction is calculated. Longevity (effect persistence, effect persistence) was evaluated according to the evaluation criteria of .
<Evaluation Criteria>
A: Mass reduction amount is less than 3.5 g.
◯: Mass reduction amount is 3.5 g or more and less than 7.0 g.
Δ: Mass reduction amount is 7.0 g or more and less than 11.0 g.
x: Mass reduction amount is 11.0 g or more.

実施例及び比較例の条件及び評価結果を表２及び表３に示す。なお、実施例４～９は参考例である。 Tables 2 and 3 show the conditions and evaluation results of Examples and Comparative Examples. Examples 4 to 9 are reference examples.

Figure 0007125296000002
Figure 0007125296000002

Figure 0007125296000003
Figure 0007125296000003

表２に示すように、Ｓ／Ｌが本発明に規定する範囲内である実施例１～９では、高い殺虫効果が得られ、また液体ベイト剤の揮散量が少なく、長持ちした。
一方、表３に示すように、Ｓ／Ｌが大きい比較例１では、高い殺虫効果が得られたものの、また液体ベイト剤の揮散量が多く、長持ちしなかった。Ｓ／Ｌが小さい比較例２では、液体ベイト剤の揮散量が少なかったものの、殺虫効果が不充分であった。 As shown in Table 2, in Examples 1 to 9 in which the S/L was within the range specified in the present invention, a high insecticidal effect was obtained, and the amount of volatilization of the liquid bait agent was small, and the liquid bait agent lasted for a long time.
On the other hand, as shown in Table 3, in Comparative Example 1 having a large S/L, although a high insecticidal effect was obtained, a large amount of the liquid bait volatilized and did not last long. In Comparative Example 2 with a small S/L, the volatilization amount of the liquid bait agent was small, but the insecticidal effect was insufficient.

１～４…害虫駆除装置、１０…含浸体、１２，１２Ａ～１２Ｃ…露出部、２０…容器、２２…容器本体、２４…蓋部材、３０，３０Ａ～３０Ｃ…喫食領域。 Reference Signs List 1 to 4 pest control device 10 impregnated body 12, 12A to 12C exposed portion 20 container 22 container body 24 lid member 30, 30A to 30C eating area.

Claims (3)

液体ベイト剤を含浸させた含浸体と、前記含浸体が収容される容器とを備え、前記含浸体に含浸させた液体ベイト剤を害虫に喫食させる害虫駆除装置であって、
前記含浸体の少なくとも上面の一部が気中に露出した露出部が１個以上形成され、
前記露出部の平面視形状が環状であり、
平面視で前記露出部を囲う喫食領域の周囲長（ｍｍ）をＬ、前記露出部の面積（ｍｍ２）をＳとしたとき、Ｓ／Ｌが１．１～２．５であり、
前記液体ベイト剤の水分含有率が５０質量％以上である、害虫駆除装置。 A pest-control device comprising an impregnated body impregnated with a liquid bait and a container housing the impregnated body, wherein pests eat the liquid bait impregnated in the impregnated body,
At least a part of the upper surface of the impregnated body is exposed to the air, and at least one exposed portion is formed,
The planar view shape of the exposed portion is annular,
S / L is 1.1 to 2.5 , where L is the perimeter (mm) of the eating area surrounding the exposed portion in plan view and S is the area (mm 2 ) of the exposed portion ,
A pest-control device , wherein the water content of the liquid bait is 50% by mass or more . 液体ベイト剤を含浸させた含浸体と、前記含浸体が収容される容器とを備え、前記含浸体に含浸させた液体ベイト剤を害虫に喫食させる害虫駆除装置であって、 A pest-control device comprising an impregnated body impregnated with a liquid bait and a container housing the impregnated body, wherein pests eat the liquid bait impregnated in the impregnated body,
前記含浸体の少なくとも上面の一部が気中に露出した露出部が２～１０個形成され、 2 to 10 exposed portions are formed in which at least a part of the upper surface of the impregnated body is exposed to the air,
平面視で前記露出部を囲う喫食領域の周囲長（ｍｍ）をＬ、前記露出部の面積（ｍｍ L is the peripheral length (mm) of the eating area surrounding the exposed portion in plan view, and the area (mm) of the exposed portion is ２2 ）をＳとしたとき、Ｓ／Ｌが１．１～２．５であり、) is S, S/L is 1.1 to 2.5,
前記液体ベイト剤の水分含有率が５０質量％以上である、害虫駆除装置。 A pest-control device, wherein the water content of the liquid bait is 50% by mass or more. 前記Ｓが１５～５００ｍｍ２である、請求項１又は２に記載の害虫駆除装置。 A pest control device according to claim 1 or 2 , wherein said S is between 15 and 500 mm 2 .
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252074A1 (en) 2004-05-11 2005-11-17 Duston Tyler D Bait stations
JP2007254363A (en) 2006-03-23 2007-10-04 Earth Chem Corp Ltd Attracting composition of oral insecticide, attracting and insect-killing tool and attracting and orally insect-killing method
JP2017184701A (en) 2016-03-31 2017-10-12 ライオン株式会社 Insect pest extermination device

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JP2007000187A (en) * 2005-06-21 2007-01-11 Fumakilla Ltd Container for diffusing volatile material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252074A1 (en) 2004-05-11 2005-11-17 Duston Tyler D Bait stations
JP2007254363A (en) 2006-03-23 2007-10-04 Earth Chem Corp Ltd Attracting composition of oral insecticide, attracting and insect-killing tool and attracting and orally insect-killing method
JP2017184701A (en) 2016-03-31 2017-10-12 ライオン株式会社 Insect pest extermination device

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