JP2002037704A - Insecticidal mat for long time use - Google Patents
Insecticidal mat for long time useInfo
- Publication number
- JP2002037704A JP2002037704A JP2001221887A JP2001221887A JP2002037704A JP 2002037704 A JP2002037704 A JP 2002037704A JP 2001221887 A JP2001221887 A JP 2001221887A JP 2001221887 A JP2001221887 A JP 2001221887A JP 2002037704 A JP2002037704 A JP 2002037704A
- Authority
- JP
- Japan
- Prior art keywords
- mat
- insecticidal
- pyrethroid
- impregnated
- long time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Catching Or Destruction (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、殺虫成分を含有す
る長時間用殺虫マットに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long-term insecticidal mat containing an insecticidal component.
【0002】[0002]
【従来の技術】従来より殺虫等の目的で殺虫成分を加熱
蒸散させる方法として、(1)蚊取線香、(2)電気蚊
取マットなどが愛好され、近年、(3)液体蚊取、すな
わち薬液中に吸液芯を浸漬し、芯上部を加熱して薬液を
加熱蒸散させる方法も普及している。このうち、電気蚊
取マットは、殺虫成分を含浸させた繊維質製マットを、
加熱蒸散装置の該マットと略同形状の放熱板上に載置
し、通電により加熱して殺虫成分を蒸散させるもので、
放熱板の中心部の温度は140〜180℃の範囲に設定
されている。電気蚊取マットは使いやすい製剤である
が、マットの底面全体が放熱板により加熱されるので、
揮散調整剤を添加しても殺虫成分の揮散量は経時的に減
少する。このため、通常1枚のマットには、1日毎にマ
ットを取り替える設計で1日使用分のピレスロイド系殺
虫成分しか配合されておらず、製剤の特性上、長時間用
殺虫マットの開発は困難と考えられてきた。一方、液体
蚊取でも、電気蚊取マットの場合と同じピレスロイド系
殺虫成分が使用されるが、芯上部を間接加熱する構成の
ため発熱体の温度は電気蚊取マットに比べて若干低くな
っている。この方式は1度薬液ボトルを装着するだけで
30〜60日間効果が継続するので便利である反面、液
漏れ等の危惧は避けられない。2. Description of the Related Art Conventionally, (1) mosquito coils and (2) electric mosquito mats have been favored as methods for heating and evaporating insecticidal components for the purpose of insect killing. A method of immersing a liquid-absorbing wick in a chemical solution and heating the upper portion of the core to heat and evaporate the chemical solution has also been widely used. Among them, the electric mosquito collecting mat is a fibrous mat impregnated with insecticidal components.
It is placed on a heat radiating plate of substantially the same shape as the mat of the heating and transpiration device, and heated by energization to evaporate the insecticidal component,
The temperature at the center of the heat sink is set in the range of 140 to 180 ° C. The electric mosquito mat is an easy-to-use preparation, but the entire bottom of the mat is heated by the heat sink,
Even if the volatilization modifier is added, the volatilization amount of the insecticidal component decreases with time. For this reason, a single mat is usually designed to replace the mat every day and contains only the pyrethroid-based insecticide used for one day, and it is difficult to develop a long-term insecticide mat due to the characteristics of the formulation. Has been considered. On the other hand, in the case of liquid mosquito collecting, the same pyrethroid-based insecticidal ingredients as in the case of electric mosquito collecting mats are used, but the temperature of the heating element is slightly lower than that of electric mosquito collecting mats due to the configuration in which the upper part of the core is heated indirectly. I have. This method is convenient because the effect is continued for 30 to 60 days just by installing the chemical bottle once, but the fear of liquid leakage and the like is unavoidable.
【0003】電気蚊取マット方式の使いやすい長所を取
り入れ、かつ長期間効果の持続する製剤の開発も試みら
れ、例えば特開平5−194103号公報や特開平6−
192007号公報には、熱可塑性樹脂粉末と無機粉末
及び/又は有機粉末からなる混合物を熱可塑性樹脂粉末
の融点付近に加熱してなる加熱蒸散用薬剤含有体が開示
され、熱伝導性のよい担体を用いることにより加熱温度
を下げ得ることが記載されている。しかしながら、長期
間にわたり安定した蒸散性能を得るのが難しく実用には
至っていない。[0003] Attempts have been made to develop formulations that incorporate the easy-to-use advantages of the electric mosquito collecting mat system and have a long-lasting effect. For example, JP-A-5-194103 and JP-A-6-194103
Japanese Patent No. 192007 discloses a heat-evaporating drug-containing substance obtained by heating a mixture of a thermoplastic resin powder and an inorganic powder and / or an organic powder near the melting point of the thermoplastic resin powder. It is described that the heating temperature can be reduced by using. However, it is difficult to obtain stable transpiration performance over a long period of time, and it has not been put to practical use.
【0004】[0004]
【発明が解決しようとする課題】本発明は、殺虫成分を
含有する繊維質製マットを発熱体放熱板上に載置して該
殺虫成分を蒸散させる電気蚊取マット方式において、従
来の知見を覆し、5日間以上の長期間にわたり安定した
殺虫効力を持続し得る長時間用殺虫マットを提供するこ
とを目的とする。SUMMARY OF THE INVENTION The present invention relates to an electric mosquito collecting system in which a fibrous mat containing an insecticidal component is placed on a heat radiating plate to evaporate the insecticidal component. It is an object of the present invention to provide a long-term insecticide mat that can be covered and maintain stable insecticidal efficacy for a long period of 5 days or more.
【0005】上記目的を達成するため、本発明者らは、
繊維質製マットに含浸される殺虫成分の物理化学的性
質、ならびにマットの面積と放熱板の面積との関係が蒸
散性能に及ぼす影響を詳細に調べ、特定のマットと特定
の放熱板を有する加熱蒸散装置を組み合わせることによ
って、5日間以上にわたり連続して殺虫効力を持続し得
ることを発見した。[0005] To achieve the above object, the present inventors have:
Detailed investigation of the physicochemical properties of the insecticidal components impregnated in the fibrous mat and the effect of the relationship between the area of the mat and the area of the heat sink on the transpiration performance, and heating with a specific mat and specific heat sink It has been found that by combining the transpiration device, the insecticidal efficacy can be continuously maintained for more than 5 days.
【0006】[0006]
【課題を解決するための手段】すなわち本発明の長時間
用殺虫マットは、20℃における蒸気圧が4.0×10
-6mmHg以上のピレスロイド系殺虫成分と揮散調整剤
とを含浸させた、最大保持液濃度が0.56mg/mm
3 の繊維質製マットであって、上記ピレスロイド系殺虫
成分の揮散調整剤に対する重量比は3以下であり、かつ
上記ピレスロイド系殺虫成分はマット1枚あたり50m
g以上含浸され、上記マットの底面積の0.2〜0.6
倍の面積を有しかつ加熱温度が70〜170℃の放熱板
上に載置して使用され、5日間以上連続して殺虫効力を
持続し得ることを特徴とする。That is, the long-time insecticidal mat of the present invention has a vapor pressure of 4.0 × 10 at 20 ° C.
-6 mmHg or higher impregnated with a pyrethroid insecticidal component and a volatilization modifier, the maximum retentate concentration is 0.56 mg / mm
3. The fibrous mat of item 3, wherein the weight ratio of the pyrethroid insecticide to the volatilization modifier is 3 or less, and the pyrethroid insecticide is 50 m per mat.
g or more and 0.2 to 0.6 of the bottom area of the mat.
It is used by being placed on a heat radiating plate having a double area and a heating temperature of 70 to 170 ° C., and is capable of maintaining insecticidal efficacy continuously for 5 days or more.
【0007】[0007]
【発明の実施の形態】本発明の殺虫マットで用いられる
殺虫成分は、安全性の高いピレスロイド系化合物で、2
0℃における蒸気圧が4.0×10-6mmHg以上であ
ることを必須とする。蒸気圧が4.0×10-6mmHg
より小さいと、特定の放熱板を有する加熱蒸散装置を組
み合わせたとしても所望の効果が得られない。BEST MODE FOR CARRYING OUT THE INVENTION The insecticidal component used in the insecticidal mat of the present invention is a highly safe pyrethroid compound.
It is essential that the vapor pressure at 0 ° C. is 4.0 × 10 −6 mmHg or more. The vapor pressure is 4.0 × 10 -6 mmHg
If it is smaller, a desired effect cannot be obtained even when a heating and evaporating apparatus having a specific heat radiating plate is combined.
【0008】好適な殺虫成分として、例えば、アレスリ
ン、フラメトリン、プラレトリン、テフラメトリン(5
−プロパルギル−2−フリルメチル2,2,3,3−テ
トラメチルシクロプロパンカルボキシレート)、テラレ
スリン、エムペントリン、5−プロパルギル−2−メチ
ル−3−フリルメチル2,2,3,3−テトラメチルシ
クロプロパンカルボキシレート、トランスフルスリン、
フェンフルスリン等をあげることができ、用途や目的に
応じて適宜選択することができる。なかでも、アレスリ
ン、フラメトリン、プラレトリン、テフラメトリンが性
能上好ましい。なお、化学構造上、不斉炭素や二重結合
に基づく光学異性体や幾何異性体が存在する場合は、そ
れぞれの各々ならびに任意の混合物も前記殺虫成分に包
含されるのはもちろんである。[0008] Suitable insecticidal components include, for example, allethrin, framethrin, praletrin, teframethrin (5
-Propargyl-2-furylmethyl 2,2,3,3-tetramethylcyclopropanecarboxylate), terarethrine, empentrin, 5-propargyl-2-methyl-3-furylmethyl 2,2,3,3-tetramethylcyclo Propane carboxylate, transfluthrin,
Fenfluthrin and the like can be mentioned, and can be appropriately selected according to the use and purpose. Among them, allethrin, framethrin, praletrin, and teframethrin are preferable in terms of performance. In the case where an optical isomer or a geometric isomer based on an asymmetric carbon or a double bond exists in the chemical structure, each of them and an arbitrary mixture are of course included in the insecticidal component.
【0009】本発明の殺虫マットでは、繊維質製マット
に前記ピレスロイド系殺虫成分が1枚あたり50mg以
上配合される。50mgより少ないと当然のことなが
ら、長期間にわたり殺虫効力を発揮し得ない。なお、繊
維質製マットに含浸させるにあたっては、通常、ピレス
ロイド系殺虫成分の外、必要に応じて殺虫成分の安定
剤、揮散調整剤、溶剤、香料、色素等を添加した原液が
用いられる。ただし、マットの最大保持液量には限度が
あるので、例えば、大きさが22×35mmで厚さが
2.8mmのマットでは、原液量を1枚あたり1.2g
以内に抑えるのが適当である。In the insecticidal mat of the present invention, the fiber-based mat is blended with the pyrethroid insecticidal component in an amount of 50 mg or more per sheet. When the amount is less than 50 mg, the insecticidal effect cannot be exerted for a long period. When the fiber mat is impregnated, an undiluted solution to which a stabilizer for the insecticide, a volatilization modifier, a solvent, a fragrance, a dye, and the like are added as necessary, in addition to the pyrethroid-based insecticide, is usually used. However, there is a limit to the maximum amount of the retentate of the mat. For example, for a mat having a size of 22 × 35 mm and a thickness of 2.8 mm, the undiluted solution amount is 1.2 g per sheet.
It is appropriate to keep it within.
【0010】殺虫成分の安定剤としては、例えばジブチ
ルヒドロキシトルエン、ジブチルハイドロキノン、2,
2’−メチレンビス−(4−エチル−6−t−ブチルフ
ェノール)〔ヨシノックス425〕があり、揮散調整剤
としては、例えばピペロニルブトキサイド、N−(2−
エチルヘキシル)−1−イソプロピル−4−メチルビシ
クロ(2,2,2)オクト−5−エン−2,3−ジカル
ボキシイミド〔サイネピリン500〕、ステアリン酸ブ
チル等があげられるが、もちろんこれらに限定されるも
のではない。[0010] As a stabilizer for the insecticidal component, for example, dibutylhydroxytoluene, dibutylhydroquinone, 2,2
There is 2′-methylenebis- (4-ethyl-6-t-butylphenol) [Yoshinox 425], and as a volatilization modifier, for example, piperonyl butoxide, N- (2-
Ethylhexyl) -1-isopropyl-4-methylbicyclo (2,2,2) oct-5-ene-2,3-dicarboximide [Sinepirin 500], butyl stearate and the like, but of course, are not limited thereto. Not something.
【0011】また、本発明の殺虫マットでは、ピレスロ
イド系殺虫成分以外の有効成分、例えば殺ダニ剤、忌避
剤、ヒノキチオール、リナロール、シトラール、ピネ
ン、メントール、テルペンアルコール類等の空間用殺菌
・抗菌剤、防黴剤等をピレスロイド系殺虫成分の蒸散性
を損なわない範囲で添加し多目的組成物とすることもで
きる。Further, in the insecticidal mat of the present invention, an active ingredient other than the pyrethroid insecticide, for example, a fungicide, a repellent, a bactericidal and antibacterial agent for space such as hinokitiol, linalool, citral, pinene, menthol, terpene alcohols and the like. A multipurpose composition can be obtained by adding an antifungal agent or the like within a range that does not impair the transpiration of the pyrethroid-based insecticidal component.
【0012】本発明の殺虫マットは、前記特定のマット
と、このマットの底面積の0.2〜0.6倍の面積を有
しかつ加熱温度が70〜170℃の放熱板を備えた加熱
蒸散装置とを組み合わせたことに特徴を有する。殺虫成
分のマットからの蒸散が一定して継続する機構は、次の
ように考えられる。まず通電すると、放熱板上に位置す
るマット部から殺虫成分が蒸散するが、放熱板の面積が
マットの底面積の0.2〜0.6倍に狭められているの
で、初期蒸散量が従来品のように過剰に高すぎることが
ない。しかる後通電休止時に、生じた殺虫成分の濃度勾
配が平衡になるように、非加熱部上に位置するマット部
の殺虫成分が放熱板上マット部に移動する。こうして放
熱板上マット部には常に所望の殺虫成分量が補給される
ため、1日内の経時的な蒸散量は従来品と異なりほぼ一
定で推移し、しかも5日以上の長期間にわたって蒸散の
継続が可能となるのである。なお、マット底面における
放熱板の占有部は、マット中央部であっても辺部であっ
てもよいが、より安定した性能を得るうえでマット中央
部の方が好ましい。The insecticidal mat of the present invention is a heating mat having the specific mat and a heat radiating plate having an area 0.2 to 0.6 times the bottom area of the mat and having a heating temperature of 70 to 170 ° C. It is characterized by being combined with a transpiration device. The mechanism by which the transpiration of the insecticidal component from the mat is kept constant is considered as follows. First, when electricity is supplied, the insecticidal component evaporates from the mat located on the heat sink, but since the area of the heat sink is reduced to 0.2 to 0.6 times the bottom area of the mat, the initial evaporation amount is It is not too high like a product. Thereafter, when the power supply is stopped, the insecticidal component of the mat portion located on the non-heated portion moves to the mat on the heat sink so that the concentration gradient of the generated insecticidal component becomes equilibrium. In this way, the desired amount of insecticidal components is always supplied to the mat on the heat sink, so that the amount of transpiration over time within one day is almost constant, unlike conventional products, and the transpiration continues for a long period of 5 days or more. It becomes possible. The occupied portion of the heat radiating plate on the bottom surface of the mat may be the center portion or the side portion of the mat, but is preferably the center portion of the mat in order to obtain more stable performance.
【0013】本発明の殺虫マットにおいて、特にピレス
ロイド系殺虫成分として、アレスリン、フラメトリン、
プラレトリン、及びテフラメトリンから選ばれた1種ま
たは2種を用いることが好ましい。[0013] In the insecticidal mat of the present invention, in particular, as a pyrethroid insecticidal component, arelesrin, framethrin,
It is preferable to use one or two kinds selected from prarethrin and teframethrin.
【0014】また、本発明の殺虫マットにおいて、ピレ
スロイド系殺虫成分としてフラメトリンを選択し、マッ
ト1枚あたり150〜400mgを含有させ、かつ揮散
調整剤としてピペロニルブトキサイド50〜300mg
を配合すると共に、放熱板の面積をマットの底面積の
0.5倍とすることが好ましい。Further, in the insecticidal mat of the present invention, flamethrin is selected as a pyrethroid insecticidal component, 150 to 400 mg is contained per mat, and 50 to 300 mg of piperonyl butoxide is used as a volatilization regulator.
And the area of the heat sink is preferably 0.5 times the bottom area of the mat.
【0015】本発明によると、繊維質製マットに含浸さ
れる殺虫成分の物理化学的性質、ならびにマットの面積
と放熱板の面積との関係を組み合わせることによって、
5日間以上にわたり連続して殺虫効力を持続し得る長時
間用殺虫マットが提供される。繊維質製マットの材質と
しては、パルプ、リンター、あるいはその混成品等、従
来蚊取マットと同質のものをあげることができる。繊維
質製マットの大きさ、形状についても任意に選択し得る
が、従来規格のものが使いやすい。このマットには、2
0℃における蒸気圧が4.0×10-6mmHg以上のピ
レスロイド系殺虫成分が1枚あたり50mg以上含浸さ
れるが、製造工程、用途や目的を考慮のうえ、殺虫成分
に適合した安定剤や揮散調整剤、あるいは溶剤、香料、
色素等を適宜添加してマット原液を調整するのが適当で
ある。According to the present invention, by combining the physicochemical properties of the insecticidal component impregnated in the fibrous mat and the relationship between the area of the mat and the area of the heat sink,
A long-term insecticidal mat capable of maintaining insecticidal efficacy continuously for 5 days or more is provided. Examples of the material of the fibrous mat include materials similar to those of the conventional mosquito collecting mat, such as pulp, linter, or a hybrid product thereof. The size and shape of the fibrous mat can be arbitrarily selected, but those of conventional standards are easy to use. This mat has 2
Pyrethroid insecticidal components having a vapor pressure of 4.0 × 10 −6 mmHg or more at 0 ° C. are impregnated in an amount of 50 mg or more per sheet. Volatilization modifier, or solvent, fragrance,
It is appropriate to appropriately add a dye or the like to prepare a stock solution of the mat.
【0016】また、前記マットの底面積の0.2〜0.
6倍の面積を有しかつ加熱温度が70〜170℃の放熱
板の加熱蒸散装置における位置関係、形状等についても
任意に決定することができる。例えば、中央部に直径1
4〜18mm程度の円形もしくは幅8〜18mm程度の
帯状放熱板を設け、その周囲にマットの周辺部を支える
支柱を配してもよいし、この支柱の代わりに適当な載置
板を、前記放熱板との間に間隙が存するように組み合わ
せても構わない。Further, the bottom area of the mat is 0.2 to 0.1.
The positional relationship, shape, and the like of the heat radiating plate having a six-fold area and a heating temperature of 70 to 170 ° C. in the heating and evaporating apparatus can be arbitrarily determined. For example, a diameter of 1
A circular heat radiating plate of about 4 to 18 mm or a width of about 8 to 18 mm may be provided, and a support for supporting the periphery of the mat may be provided around the heat radiator. Alternatively, a suitable mounting plate may be provided in place of the support. You may combine so that a clearance may exist between a heat sink and a heat sink.
【0017】[0017]
【実施例】以下に、実施例及び試験例に基づいて本発明
を更に詳細に説明する。The present invention will be described below in more detail with reference to examples and test examples.
【0018】実施例1.大きさが22×35mmで厚み
が2.8mmの繊維質製マットに、d−トランス−アレ
スリン(商品名:エスバイオスリン)を300mg、揮
散調整剤としてのピペロニルブトキサイドを200m
g、安定剤を10mg、微量の香料及び青色染料を配合
したマット原液を含浸させた。直径16mmで発熱温度
が150℃の円形放熱板を中央部に有し、その周囲4ケ
所にマットを支える支柱を配した加熱蒸散装置に、前記
マットを載置して使用したところ、1日・12時間あた
りのd−トランス−アレスリンの蒸散量は約30mgで
あった。このマットは10日間にわたり安定した蒸散性
能と殺虫効力を奏し、しかも液洩れ等の心配がなく使用
性にも優れたものであった。Embodiment 1 FIG. On a fibrous mat having a size of 22 × 35 mm and a thickness of 2.8 mm, 300 mg of d-trans-aresulin (trade name: Esbiothrine) and 200 m of piperonyl butoxide as a volatilization modifier were used.
g, 10 mg of a stabilizer, and a mat stock solution containing a trace amount of a fragrance and a blue dye were impregnated. When the mat was placed and used in a heating and evaporating apparatus having a circular heat radiating plate having a diameter of 16 mm and a heat generation temperature of 150 ° C. in the center and supporting the mat in four places around the heat radiating plate, The amount of d-trans-aresulin evaporated per 12 hours was about 30 mg. This mat exhibited stable transpiration performance and insecticidal efficacy over 10 days, and was excellent in usability without fear of liquid leakage.
【0019】実施例2.大きさが22×35mmで厚み
が2.8mmの繊維質製マットに、d−シス、トランス
−フラメトリン(商品名:ピナミンD−f)を250m
g、揮散調整剤としてのピペロニルブトキサイドを15
0mg、安定剤を20mgと微量の青色染料を含む灯油
溶液を含浸させた。加熱蒸散装置としては、マット底面
積の0.5倍の面積を有し帯状の放熱板を中央部に配設
したものを用い、夜間12時間通電し昼間休止するサイ
クルを10日間継続した。その結果、d−シス、トラン
ス−フラメトリンの蒸散量は毎日約20mgずつで経時
的にも安定しており、10日間にわたり十分な蚊防除効
果を示した。Embodiment 2 FIG. On a fibrous mat having a size of 22 × 35 mm and a thickness of 2.8 mm, d-cis and trans-flametrin (trade name: Pinamine Df) are 250 m.
g, 15 parts of piperonyl butoxide as a volatilization regulator
A kerosene solution containing 0 mg, 20 mg of stabilizer and a trace amount of blue dye was impregnated. As the heating and evaporating device, a device having a band-shaped heat radiating plate arranged at the center having an area 0.5 times the mat bottom area was used, and a cycle in which electricity was supplied for 12 hours at night and stopped during the day was continued for 10 days. As a result, the amount of transpiration of d-cis and trans-framethrin was about 20 mg every day, which was stable over time, showing a sufficient mosquito control effect for 10 days.
【0020】試験例1.実施例1及び実施例2に準じて
表1に示す殺虫マットを調製し、種々の加熱蒸散装置に
装填して各種の性能評価試験を行った。 (1)蒸散性能:蒸散した殺虫成分を所定時間毎にシリ
カゲル充填カラムでトラップし、アセトンで殺虫成分を
抽出後、ガズクロマトグラフで分析し、殺虫成分の時間
あたりの蒸散量を求めた。表1に示す値は、それぞれの
製剤の初期の値を1.00とした場合の相対比で示し
た。 (2)殺虫効力:所定時間毎に下記の連続通気法により
アカイエカに対する仰転効果を評価した。表1に示す値
は、dl,d−シス、トランス−アレスリン40mgを
含有する1日用マットの初期の値を1.00とした場合
の相対有効比で示した。Test Example 1 Insecticidal mats shown in Table 1 were prepared according to Examples 1 and 2, and loaded into various heat evaporation devices to perform various performance evaluation tests. (1) Transpiration performance: The transpired insecticidal components were trapped by a silica gel packed column at predetermined time intervals, and the insecticidal components were extracted with acetone and analyzed by gaz chromatography to determine the amount of transpiring per hour of the insecticidal components. The values shown in Table 1 are shown as relative ratios when the initial value of each preparation is 1.00. (2) Insecticidal efficacy: The erecting effect on Culex pipiens was evaluated by the following continuous aeration method at predetermined time intervals. The values shown in Table 1 are shown as relative effective ratios when the initial value of the daily mat containing 40 mg of dl, d-cis and trans-arrestrin is 1.00.
【0021】(連続通気法)内径20cm、高さ43c
mのプラスチック製円筒を2段に重ね、その上に16メ
ッシュの金網で上下に仕切った内径及び高さが共に20
cmの円筒(供試蚊を入れる場所)を載せ、更に内径2
0cm、高さ20cm円筒を載せる。この4段重ねの円
筒を台に載せ、台の中央に加熱蒸散装置を置いて供試マ
ット中の殺虫成分を蒸散させる。そして、上部円筒に供
試蚊約20匹を放ち、時間の経過に伴う該蚊の仰転数を
観察する。暴露20分後に全供試蚊を清潔なポリエチレ
ン容器に移し、3%砂糖水を与え、保存24時間後に死
虫率を調べる。(Continuous ventilation method) Inner diameter 20 cm, height 43 c
m plastic cylinders are piled up in two stages, and the inside diameter and height of both are vertically separated by a 16 mesh wire mesh.
cm cylinder (the place to put the mosquito to be tested)
Place a 0 cm, 20 cm high cylinder. The four-tiered cylinder is placed on a table, and a heat evaporation device is placed at the center of the table to evaporate the insecticidal components in the test mat. Then, about 20 test mosquitoes are released into the upper cylinder, and the number of inversions of the mosquitoes over time is observed. Twenty minutes after exposure, all test mosquitoes are transferred to a clean polyethylene container, given 3% sugar water, and examined for mortality 24 hours after storage.
【0022】[0022]
【表1】 [Table 1]
【0023】試験の結果、特定のマットと、特定の放熱
板を有する加熱蒸散装置を組み合わせた本発明の長時間
用殺虫マットは、5日間以上にわたり優れた蒸散性能と
殺虫効力を示し、便利なうえ極めて実用的であった。こ
れに対し、20℃における蒸気圧が4.0×10-6mm
Hgより小さいピレスロイド系殺虫成分を用いた場合
(対照例1)、蒸気圧が4.0×10-6mHg以上であ
っても1枚あたりの殺虫成分量が50mgに満たない場
合(対照例2)、放熱板の条件に適合しない場合(対照
例3〜4)や特開平5−194103号開示の薬剤含有
体を用いた場合(対照例5)のいずれも満足のいく性能
が得られなかった。As a result of the test, the long-time insecticidal mat of the present invention combining a specific mat and a heating and evaporating apparatus having a specific heat radiating plate shows excellent transpiration performance and insecticidal efficacy over 5 days or more, and is convenient. Moreover, it was extremely practical. On the other hand, the vapor pressure at 20 ° C. is 4.0 × 10 −6 mm
When a pyrethroid insecticidal component smaller than Hg was used (Comparative Example 1), even when the vapor pressure was 4.0 × 10 −6 mHg or more, the insecticidal component amount per sheet was less than 50 mg (Control Example 2). ), Satisfactory performance was not obtained either when the conditions of the heat sink were not met (Comparative Examples 3 to 4) or when the drug-containing substance disclosed in JP-A-5-194103 was used (Comparative Example 5). .
【0024】[0024]
【発明の効果】本発明の長時間用殺虫マットは、液洩れ
等の心配がなくクリーンな製剤で、5日間以上の長期間
にわたり安定した殺虫効力を持続することができる。Industrial Applicability The long-term insecticidal mat of the present invention is a clean preparation without fear of liquid leakage and the like, and can maintain a stable insecticidal effect for a long period of 5 days or more.
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 2B121 CA04 CA35 CA53 CA59 DA60 FA08 4H011 AC01 BA01 BA02 BB15 BC06 BC08 BC19 DA07 DC10 DE06 DF03 DH07 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B121 CA04 CA35 CA53 CA59 DA60 FA08 4H011 AC01 BA01 BA02 BB15 BC06 BC08 BC19 DA07 DC10 DE06 DF03 DH07
Claims (2)
mmHg以上のピレスロイド系殺虫成分と揮散調整剤と
を含浸させた、最大保持液濃度が0.56mg/mm3
の繊維質製マットであって、上記ピレスロイド系殺虫成
分の揮散調整剤に対する重量比は3以下であり、かつ上
記ピレスロイド系殺虫成分はマット1枚あたり50mg
以上含浸され、上記マットの底面積の0.2〜0.6倍
の面積を有しかつ加熱温度が70〜170℃の放熱板上
に載置して使用され、5日間以上連続して殺虫効力を持
続し得ることを特徴とする長時間用殺虫マット。1. The vapor pressure at 20 ° C. is 4.0 × 10 −6.
A maximum retentate concentration of 0.56 mg / mm 3 impregnated with a pyrethroid-based insecticidal component of mmHg or more and a volatilization regulator.
Wherein the weight ratio of the pyrethroid-based insecticide component to the volatilization modifier is 3 or less, and the pyrethroid-based insecticide component is 50 mg per mat.
Impregnated as above, used on a heat sink having an area of 0.2 to 0.6 times the bottom area of the mat and a heating temperature of 70 to 170 ° C., and continuously used for 5 days or more A long-term insecticidal mat characterized by being able to maintain its efficacy.
フラメトリン、プラレトリン及びテフラメトリンからな
る群から選択されることを特徴とする請求項1記載の長
時間用殺虫マット。2. The pyrethroid insecticidal component is allethrin,
2. The long-term insecticidal mat according to claim 1, wherein the mat is selected from the group consisting of framethrin, praletrin and teframethrin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001221887A JP3820515B2 (en) | 1996-11-12 | 2001-07-23 | Long-term insecticidal mat |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8-337433 | 1996-11-12 | ||
JP33743396 | 1996-11-12 | ||
JP2001221887A JP3820515B2 (en) | 1996-11-12 | 2001-07-23 | Long-term insecticidal mat |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28105497A Division JP3286833B2 (en) | 1996-11-12 | 1997-09-04 | Insecticidal mat for long-term use and method of heat transpiration using the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002037704A true JP2002037704A (en) | 2002-02-06 |
JP3820515B2 JP3820515B2 (en) | 2006-09-13 |
Family
ID=26575789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001221887A Expired - Fee Related JP3820515B2 (en) | 1996-11-12 | 2001-07-23 | Long-term insecticidal mat |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3820515B2 (en) |
-
2001
- 2001-07-23 JP JP2001221887A patent/JP3820515B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3820515B2 (en) | 2006-09-13 |
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