JP3783251B2 - Heat transpiration insecticide method - Google Patents
Heat transpiration insecticide method Download PDFInfo
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- JP3783251B2 JP3783251B2 JP23687495A JP23687495A JP3783251B2 JP 3783251 B2 JP3783251 B2 JP 3783251B2 JP 23687495 A JP23687495 A JP 23687495A JP 23687495 A JP23687495 A JP 23687495A JP 3783251 B2 JP3783251 B2 JP 3783251B2
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- Prior art keywords
- isopropyl
- insecticide
- weight
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- transpiration
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Description
【０００１】
【発明の属する技術分野】
本発明は、加熱蒸散殺虫方法および加熱蒸散用殺虫液に関するものである。
【０００２】
【発明が解決しようとする課題】
殺虫液中に多孔質吸液芯の一部を浸漬して、該芯に殺虫液を吸液させ、該芯の上部を加熱することにより吸液された殺虫液を蒸散させる加熱蒸散殺虫方法において、吸液芯の目詰まり、加熱蒸散過程における殺虫液組成の変化等により、長時間にわたって安定した殺虫液の蒸散を行い、安定した殺虫効果を得ることが困難であることから、安定した蒸散を可能とし、安定した殺虫効果をあげることのできる加熱蒸散用殺虫液の開発が望まれていた。
【０００３】
【課題を解決するための手段】
本発明は、上述の課題を解決するものであり、高級脂肪酸のイソプロピルエステルの添加により吸液芯の目詰まりを防止し殺虫液の安定した蒸散を可能とすると共に、長時間にわたって安定した殺虫効力を維持することを可能としたものである。即ち、本発明は殺虫液中に多孔質吸液芯の一部を浸漬して、該芯に殺虫液を吸液させ、該芯の上部を加熱することにより吸液された殺虫液を蒸散させる加熱蒸散殺虫方法において、殺虫液として、沸点が１８０〜３１０℃の飽和炭化水素中にピレスロイド化合物 0.1〜１５重量％および高級脂肪酸のイソプロピルエステル 0.3〜１０重量％が含有されてなる液を用いる加熱蒸散殺虫方法、並びにピレスロイド化合物 0.1〜１５重量％、高級脂肪酸のイソプロピルエステル 0.3〜１０重量％が、沸点が１８０〜３１０℃の飽和炭化水素に溶解されてなる加熱蒸散殺虫用殺虫液を提供するものである。
【０００４】
【発明の実施の形態】
本発明において用いられるピレスロイド化合物としては、アレスリン、バイオアレスリン、エスビオスリン、プラレトリン、フラメトリン、エムペントリン、レスメトリン、フェノトリン、ペルメトリン、トランスフルスリン、テラレスリン、シラフルオフェン、エトフェンプロックス等が挙げられる。
また、本発明において用いられる高級脂肪酸のイソプロピルエステルとしては、通常、炭素数１２〜１８脂肪酸のイソプロピルエステルであるラウリン酸イソプロピル、ミリスチン酸イソプロピル、パルミチン酸イソプロピル、ステアリン酸イソプロピルが挙げられる。
【０００５】
本発明において用いられる沸点が１８０〜３１０℃の飽和炭化水素は、一種単独でも二種以上の混合物であってもよく、０号ソルベントＨ（日本石油製）、０号ソルベントＭ、日本石油製）、０号ソルベントＬ（日本石油製）、ノルマルパラフィン（三石・テキサコケミカル製）、デオトミゾールＡ−１（吉富製薬製）、ＩＰソルベント2028（出光石油化学製）、ネオチオゾール（中央化成製）、ノルパー１２（エクソン化学製）、ノルパー１３（エクソン化学製）、ノルパー１５（エクソン化学製）、アイソパーＭ（エクソン化学製）、アイソパーＬ（エクソン化学製）、アイソパーＶ（エクソン化学製）、エクソールＤ８０（エクソン化学製）、エクソールＤ１１０（エクソン化学製）、エクソールＤ１３０（エクソン化学製）等の市販品を使用することもできる。
【０００６】
本発明の加熱蒸散殺虫方法は、例えば特公平２−２５８８５号公報等に記載の加熱蒸散型殺虫装置に適用して優れた効果をあげることができる。
図１は本発明の加熱蒸散殺虫方法に用いられる装置の一例を示すものであり、殺虫液１中に多孔質吸液芯３の一部を浸漬されており、該芯に殺虫液を吸液させ、該芯の上部を発熱体２で加熱することができるようになっている。
【０００７】
吸液芯の材質である多孔質材としては、例えばクレー、タルク、カオリン、珪藻土、石膏、パーライト、ベントナイト、酸性白土、グラスファイバー、石綿等の無機粉末をカルボキシメチルセルロース、澱粉、アラビアガム、ゼラチン、ポリビニルアルコール等の糊剤にて粘結、成形したものが用いられる。尚、該吸液芯に、色素、防腐剤等を適宜添加してもよい。
【０００８】
【実施例】
以下、本発明を実施例をあげてより詳細に説明する。
まず、本発明の加熱蒸散用殺虫液の例を示す。
実施例１
プラレトリンおよびパルミチン酸イソプロピルを各々 2.6重量％および 7.7重量％となるようにノルパー１３（エクソン化学製飽和炭化水素）に溶解して本発明の殺虫液を得、４５ml容の容器に入れて吸液芯を取付け、図１に示されるような加熱蒸散型殺虫装置に設置した。
【０００９】
実施例２
直径４cm、高さ12cmのガラス管内にアカイエカ雌成虫10頭を放ち、ガラス管の両端をナイロン網で閉じたもの２本をプラスチック製筒状カバー（直径18cm、高さ30cm）内に入れ、該筒状カバーの下に金属筒（直径20cm、高さ80cm）を設置し、上記金属筒底部に予め加熱した図１に示されるような加熱蒸散型殺虫装置を設置し、吸液芯上部を１２０〜１３５℃に間接加熱してアカイエカがノックダウンする虫数を数え、プロビット法によりＫＴ50値（５０％の虫がノックダウンするのに要する時間、単位は分）を計算した。
また、実施例１において使用したパルミチン酸イソプロピルにかえて、芳香族ジカルボン酸エステルであるフタル酸ジヘプチルを添加した場合についても比較のために試験を行った。結果を表１に示す。
【００１０】
【表１】
また、エステルを添加しない場合についても同様の試験を行ったところ、３００時間を超えた頃から芯の目詰まりのため有効成分の揮散が低下し、長期間にわたって殺虫効力を持続させることができなかった。
【００１１】
【発明の効果】
本発明の加熱蒸散殺虫方法によれば、長時間にわたって安定した殺虫液の蒸散を行い、安定した殺虫効果を得ることができる。
【図面の簡単な説明】
【図１】本発明の加熱蒸散殺虫方法に用いられる装置の一例を示す説明図である。
【符号の説明】
１は薬液、２は発熱体、３は吸液芯、４は薬液を入れた容器を表す。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat transpiration insecticide method and a heat transpiration insecticide.
[0002]
[Problems to be solved by the invention]
In a heat transpiration insecticide method in which a part of a porous absorbent core is immersed in an insecticide, the insecticide is absorbed by the core, and the absorbed insecticide is evaporated by heating the top of the core. It is difficult to obtain a stable insecticidal effect because it is difficult to obtain a stable insecticidal effect by transpiration of a stable insecticidal solution over a long period of time due to clogging of the liquid absorption core, changes in the composition of the insecticidal solution in the process of heat evaporation. It has been desired to develop an insecticidal solution for heat transpiration that can be achieved and has a stable insecticidal effect.
[0003]
[Means for Solving the Problems]
The present invention solves the above-mentioned problems, and by adding an isopropyl ester of a higher fatty acid, clogging of the liquid absorption core is prevented, enabling stable evaporation of the insecticide, and stable insecticidal efficacy over a long period of time. Can be maintained. That is, the present invention immerses a part of the porous absorbent core in the insecticide, absorbs the insecticide into the core, and heats the top of the core to evaporate the absorbed insecticide. In the heat transpiration insecticide method, heat transpiration using a liquid comprising 0.1 to 15% by weight of a pyrethroid compound and 0.3 to 10% by weight of an isopropyl ester of a higher fatty acid in a saturated hydrocarbon having a boiling point of 180 to 310 ° C. An insecticidal method, and a pyrethroid compound 0.1 to 15% by weight, an isopropyl ester of a higher fatty acid 0.3 to 10% by weight is dissolved in a saturated hydrocarbon having a boiling point of 180 to 310 ° C. is there.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Examples of pyrethroid compounds used in the present invention include allethrin, bioareslin, esbioslin, praretrin, furamethrin, empentrin, resmethrin, phenothrin, permethrin, transfluthrin, teraleslin, silafluophene, etofenprox, and the like.
In addition, examples of the isopropyl ester of higher fatty acid used in the present invention include isopropyl laurate, isopropyl myristate, isopropyl palmitate, and isopropyl stearate, which are isopropyl esters of 12 to 18 carbon atoms.
[0005]
The saturated hydrocarbon having a boiling point of 180 to 310 ° C. used in the present invention may be a single type or a mixture of two or more types, No. 0 Solvent H (manufactured by Nippon Oil), No. 0 Solvent M, manufactured by Nippon Petroleum). No. 0 Solvent L (manufactured by Nippon Oil), normal paraffin (manufactured by Mitsuishi / Texaco Chemical), deotomisole A-1 (manufactured by Yoshitomi Pharmaceutical), IP solvent 2028 (manufactured by Idemitsu Petrochemical), neothiozole (manufactured by Chuo Kasei), norpar 12 (Exxon Chemical), Norper 13 (Exxon Chemical), Norper 15 (Exxon Chemical), Isopar M (Exxon Chemical), Isopar L (Exxon Chemical), Isopar V (Exxon Chemical), Exol D80 (Exon) Chemical), Exol D110 (Exxon Chemical), Exol D130 (Exxon Chemical) and other commercial products Can also be used.
[0006]
The heat transpiration insecticidal method of the present invention can be applied to a heat transpiration insecticidal device described in, for example, Japanese Examined Patent Publication No. 2-25885, and can provide excellent effects.
FIG. 1 shows an example of an apparatus used in the heat-transpiration insecticidal method of the present invention. A part of a porous absorbent core 3 is immersed in an insecticide 1, and the insecticide is absorbed into the core. The upper part of the core can be heated by the heating element 2.
[0007]
Examples of the porous material that is the material of the liquid absorbent core include inorganic powders such as clay, talc, kaolin, diatomaceous earth, gypsum, perlite, bentonite, acid clay, glass fiber, asbestos, carboxymethylcellulose, starch, gum arabic, gelatin, What was caking and shape | molded with pastes, such as polyvinyl alcohol, is used. In addition, you may add a pigment | dye, antiseptic | preservative, etc. to this liquid absorption core suitably.
[0008]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples.
First, an example of the insecticidal solution for heat evaporation of the present invention is shown.
Example 1
Praretrin and isopropyl palmitate are dissolved in Norper 13 (saturated hydrocarbon made by Exxon Chemical) so as to be 2.6% by weight and 7.7% by weight, respectively. And installed in a heat transpiration insecticide as shown in FIG.
[0009]
Example 2
Release 10 adult mosquitoes in a glass tube with a diameter of 4 cm and a height of 12 cm, and put two glass tubes closed at both ends with a nylon net in a plastic cylindrical cover (diameter 18 cm, height 30 cm). A metal cylinder (diameter 20 cm, height 80 cm) is installed under the cylindrical cover, and a heated transpiration insecticide as shown in FIG. 1 is installed at the bottom of the metal cylinder. The number of worms knocked down by Culex pipiens by indirect heating to ˜135 ° C. was counted, and the KT 50 value (time required for knocking down 50% of insects in minutes) was calculated by the probit method.
In addition, in the case of adding diheptyl phthalate which is an aromatic dicarboxylic acid ester instead of isopropyl palmitate used in Example 1, a test was also conducted for comparison. The results are shown in Table 1.
[0010]
[Table 1]
In addition, when the same test was conducted for the case where no ester was added, the volatilization of the active ingredient decreased due to clogging of the core from the time when 300 hours were exceeded, and the insecticidal efficacy could not be maintained for a long time. It was.
[0011]
【The invention's effect】
According to the heat evaporation insecticidal method of the present invention, a stable insecticidal solution can be evaporated for a long time, and a stable insecticidal effect can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an example of an apparatus used in the heat-transpiration insecticide method of the present invention.
[Explanation of symbols]
1 is a chemical solution, 2 is a heating element, 3 is a liquid absorbent core, and 4 is a container containing a chemical solution.
Claims (4)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23687495A JP3783251B2 (en) | 1995-09-14 | 1995-09-14 | Heat transpiration insecticide method |
| AU64444/96A AU708907B2 (en) | 1995-09-14 | 1996-09-05 | Liquid insecticidal preparation for heat fumigation and method for killing insects by heat fumigation |
| MYPI96003693A MY118334A (en) | 1995-09-14 | 1996-09-06 | Liquid insecticidal preparation for heat fumigation and method for killing insects by heat fumigation |
| FR9611073A FR2738718B1 (en) | 1995-09-14 | 1996-09-11 | LIQUID INSECTICIDE PREPARATION FOR HOT FUMIGATION AND METHOD FOR KILLING INSECTS BY HOT FUMIGATION |
| ES009601927A ES2142205B1 (en) | 1995-09-14 | 1996-09-11 | LIQUID INSECTICIDE PREPARATION FOR HEAT FUMIGATION AND METHOD FOR ANNIHILIZING INSECTS THROUGH HEAT FUMIGATION. |
| MXPA/A/1996/004050A MXPA96004050A (en) | 1995-09-14 | 1996-09-12 | Preparation liquid insecticide for heat fumigation and method for aniquiliating insects through fumigation by ca |
| IT96RM000625A IT1290148B1 (en) | 1995-09-14 | 1996-09-13 | LIQUID INSECTICIDE PREPARATION FOR HOT SMOKING TO SUPPRESS INSECTS |
| BR9603766A BR9603766B1 (en) | 1995-09-14 | 1996-09-13 | liquid insecticide preparation for hot fumigation, process for killing insects by hot fumigation and use of a higher Fatty Acid or dibutyl phthalate isopropyl ester as anti-clogging agent. |
| KR1019960039596A KR100523676B1 (en) | 1995-09-14 | 1996-09-13 | Liquid insecticidal preparation for heat fumigation and insecticidal method by heat fumigation |
| TW085111255A TW383213B (en) | 1995-09-14 | 1996-09-14 | Liquid insecticidal preparation for heat fumigation and a method for killing insects by heat fumigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23687495A JP3783251B2 (en) | 1995-09-14 | 1995-09-14 | Heat transpiration insecticide method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0977607A JPH0977607A (en) | 1997-03-25 |
| JP3783251B2 true JP3783251B2 (en) | 2006-06-07 |
Family
ID=17007078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23687495A Expired - Fee Related JP3783251B2 (en) | 1995-09-14 | 1995-09-14 | Heat transpiration insecticide method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3783251B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050260138A1 (en) * | 2004-05-21 | 2005-11-24 | Virgil Flanigan | Producton and use of a gaseous vapor disinfectant |
| JP5326320B2 (en) * | 2007-03-30 | 2013-10-30 | 住友化学株式会社 | Pest control composition and pest control method |
| MY179385A (en) * | 2008-09-12 | 2020-11-05 | Sumitomo Chemical Co | Structural body, method for producing the same, vapordispensing device, vapor-dispensing method, and kit for vapor dispensation |
-
1995
- 1995-09-14 JP JP23687495A patent/JP3783251B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0977607A (en) | 1997-03-25 |
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