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JP4335475B2 - Method for enhancing efficacy of insecticidal aerosols - Google Patents
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JP4335475B2 - Method for enhancing efficacy of insecticidal aerosols - Google Patents

Method for enhancing efficacy of insecticidal aerosols Download PDF

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Publication number
JP4335475B2
JP4335475B2 JP2001170399A JP2001170399A JP4335475B2 JP 4335475 B2 JP4335475 B2 JP 4335475B2 JP 2001170399 A JP2001170399 A JP 2001170399A JP 2001170399 A JP2001170399 A JP 2001170399A JP 4335475 B2 JP4335475 B2 JP 4335475B2
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Prior art keywords
insecticidal
efficacy
weight
aerosol
enhancing
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JP2001170399A
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JP2002363002A (en
Inventor
克好 加百
輝樹 山本
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Earth Corp
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Earth Chemical Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、殺虫エアゾール剤の効力増強方法に関する。
【0002】
【従来の技術】
従来から効果的に害虫を駆除するため、ピペロニルブトキシド、オクタクロロジプロピルエーテル等の共力剤、芳香族カルボン酸エステル、脂肪酸エステル、ある種の界面活性剤等を用いて殺虫効力を高めることが知られている。これらの手段は、用いる殺虫成分の種類、製剤等によっては十分に殺虫効力を高めることができないという問題がある。
そのため様々な手段について検討が行われているが充分ではなく、依然として検討の余地があり、とくに害虫に対して即効的に作用することが求められる殺虫エアゾール剤においては、殺虫効力を高めるための有効な手段が望まれているのが現状である。
【0003】
【発明が解決しようとする課題】
そこで本発明の課題は、上記のような状況に鑑みて、殺虫エアゾール剤のノックダウン効力、殺虫効力を高めるための有効な手段を提供することである。
【0004】
【課題を解決するための手段】
本発明者等は、上記課題を解決するために鋭意検討した結果、殺虫エアゾール剤に特定量の水を配合し、噴射剤の含有量を所定量とすることで、共力剤等を用いることなく、ノックダウン効力、殺虫効力を高めることができることを見出した。すなわち本発明は、以下の構成により達成されるものである。
(1)殺虫エアゾール剤全量に対して1〜10重量%の水、及び水に対して重量比で2〜5倍のパラフィン系溶剤を配合し、噴射剤の含有量を65〜90重量%とすることを特徴とする殺虫エアゾール剤の効力増強方法。
【0005】
【発明の実施の形態】
本発明の殺虫エアゾール剤の効力増強方法(以下、効力増強方法とも言う)は、水を殺虫エアゾール剤全量に対して1〜10重量%、好ましくは4〜8重量%となるように配合し、さらに噴射剤の含有量を殺虫エアゾール剤全量に対して65重量%以上、好ましくは70〜90重量%となるようにするものである。
【0006】
水に対して重量比で2〜5倍となるようにパラフィン系溶剤を配合することで、より優れたノックダウン効果、殺虫効果を得ることができる。
パラフィン系溶剤を用いる場合には、殺虫成分を安定に乳化させるために界面活性剤を用いることが必要であり、殺虫エアゾール剤全量に対して0.01〜10重量%、好ましくは0.5〜5重量%配合する。
界面活性剤としては、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレンポリオキシプロピレングリコール、ポリエチレングリコール脂肪酸エステル、ポリエチレングリコールソルビタン脂肪酸エステル等の非イオン系界面活性剤が挙げられる。
特にテトラオレイン酸ポリオキシエチレンソルビットとヤシ油脂肪酸ソルビタンとを組み合わせて用いると、殺虫エアゾール剤の乳化がより安定となり、またノックダウン効果、殺虫効果も優れたものとなる。
【0007】
本発明の効力増強方法は、殺虫成分、溶剤、噴射剤を含む殺虫エアゾール剤に適用できる。
このような殺虫エアゾール剤に用いる殺虫成分、溶剤、噴射剤としては、以下のものが挙げられる。
【0008】
殺虫成分としては、天然ピレトリン、ピレトリン、アレスリン、フタルスリン、レスメトリン、フラメトリン、ペルメトリン、フェノトリン、シフェノトリン、プラレトリン、トランスフルトリン、イミプロトリン、エンペントリン、エトフェンプロックス等のピレスロイド系化合物;プロポクサー、カルバリル等のカーバメイト系化合物;フェニトロチオン、DDVP等の有機リン系化合物;メトキサジアゾン等のオキサジアゾール系化合物;フィプロニル等のピラゾール系化合物;フィットンチッド、ハッカ油、オレンジ油、桂皮油、丁子油等の精油類;IBTA;IBTE;四級アンモニウム塩;サリチル酸ベンジル等が挙げられる。
これらは1種又は2種以上を用いることができ、殺虫エアゾール剤全量に対して0.1〜1重量%、さらには0.1〜0.5重量%となるように用いればよい。
【0009】
溶剤としては、ノルマルパラフィン、イソパラフィン、これらの混合物等のパラフィン系溶剤;エタノール、変性アルコール等のアルコール;炭酸エステル、乳酸エステル;ポリビニルピロリドン;グリコール;シリコーン等が挙げられる。
これらの1種又は2種以上を用い、殺虫エアゾール剤全量に対して10〜30重量%、好ましくは15〜30重量%となるように用いる。
【0010】
噴射剤としては、液化石油ガス、ジメチルエーテル、ジフルオロモノクロロエタン等の液化ガス;炭酸ガス、窒素、圧縮空気等の圧縮ガス等が挙げられ、これらの1種又は2種以上を用いる。
【0011】
さらに殺虫エアゾール剤には、ジエチルメタトルアミド、ジ−n−ブチルサクシネート、ヒドロキシアニソール等の忌避剤;PCMX、IPBC等の殺菌剤;ラウリルメタクリレート、ゲラニルクロトネート、カテキン等の消臭剤;バラ油、ラベンダー油、ハッカ油等の精油;ピネン、リモネン、リナロール、メントール、オイゲノール等の香料;非イオン系界面活性剤、陽イオン系界面活性剤、陰イオン系界面活性剤、両性界面活性剤等の界面活性剤;S421、サイネピリン等の共力剤;BHT、BHA等の酸化防止剤等を配合してもよい。
【0012】
本発明の効力増強方法は、ハエ、カ、ゴキブリ、クモ、ダニ、ケムシ、ゲジゲジ、ダンゴムシ、アリ等の各種害虫に用いる殺虫エアゾール剤に適用することができる。
【0013】
【実施例】
以下、実施例により本発明を具体的に説明する。ただし本発明はこれらの実施例のみに限定されるものではない。
【0014】
(1)殺虫効力試験
表1記載の殺虫エアゾール剤(検体1〜3)を作成し、ケージ(25cm×25cm×25cm)の中にイエバエ雌成虫20匹を入れ、1mの距離から1秒間噴射した。そしてKT90(90%ノックダウン時間(秒))と24時間後の致死率(%)を求めた。
比較として、水を含有しない殺虫エアゾール剤(市販品A)と、噴射剤の含有量が50重量%で水を含んだ殺虫エアゾール剤(市販品B)を用いて同様の試験を行った。
【0015】
【表1】

Figure 0004335475
【0016】
測定結果は表2に示したとおり、本発明の効力増強方法を用いた検体1及び2は、ノックダウン効力、殺虫効力のいずれにおいても検体3及び市販品よりも優れたものであった。
【0017】
【表2】
Figure 0004335475
【0018】
【発明の効果】
本発明の効力増強方法によって、共力剤等を用いることなく、殺虫エアゾール剤のノックダウン効力、殺虫効力を高めることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for enhancing the efficacy of insecticidal aerosols.
[0002]
[Prior art]
In order to effectively control pests from the past, it is known to increase the insecticidal efficacy using synergists such as piperonyl butoxide and octachlorodipropyl ether, aromatic carboxylic acid esters, fatty acid esters, and certain surfactants. It has been. These means have a problem that the insecticidal efficacy cannot be sufficiently increased depending on the kind of insecticidal component used, the preparation and the like.
For this reason, various means have been studied, but it is not sufficient, and there is still room for further investigation. Especially for insecticide aerosols that are required to act quickly against pests, it is effective to increase the insecticidal efficacy. It is the present situation that various means are desired.
[0003]
[Problems to be solved by the invention]
Then, the subject of this invention is providing the effective means for raising the knockdown efficacy and insecticidal efficacy of an insecticidal aerosol agent in view of the above situations.
[0004]
[Means for Solving the Problems]
As a result of diligent investigations to solve the above problems, the present inventors use a synergist or the like by blending a specific amount of water with an insecticidal aerosol agent and setting the propellant content to a predetermined amount. It was found that the knockdown effect and the insecticidal effect can be enhanced. That is, the present invention is achieved by the following configurations.
(1) 1 to 10% by weight of water with respect to the total amount of the insecticidal aerosol , and 2 to 5 times the weight ratio of the paraffinic solvent to the water , and the propellant content is 65 to 90% by weight. A method for enhancing the efficacy of an insecticidal aerosol.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The method for enhancing the efficacy of the insecticidal aerosol of the present invention (hereinafter also referred to as the efficacy enhancing method) is formulated such that water is 1 to 10% by weight, preferably 4 to 8% by weight, based on the total amount of the insecticidal aerosol, Furthermore, the propellant content is 65% by weight or more, preferably 70 to 90% by weight, based on the total amount of the insecticide aerosol.
[0006]
By blending a paraffinic solvent so that the weight ratio is 2 to 5 times that of water, a more excellent knockdown effect and insecticidal effect can be obtained.
When a paraffin solvent is used, it is necessary to use a surfactant in order to stably emulsify the insecticidal component, and 0.01 to 10% by weight, preferably 0.5 to 0.5% based on the total amount of the insecticidal aerosol. Mix 5% by weight.
Non-ionic surfactants such as glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene glycol, polyethylene glycol fatty acid ester, polyethylene glycol sorbitan fatty acid ester Surfactant is mentioned.
In particular, when tetraoleic acid polyoxyethylene sorbit and coconut oil fatty acid sorbitan are used in combination, the emulsification of the insecticidal aerosol becomes more stable, and the knockdown effect and insecticidal effect are excellent.
[0007]
The efficacy enhancing method of the present invention can be applied to insecticide aerosols containing insecticide components, solvents and propellants.
The following are mentioned as an insecticidal component, a solvent, and a propellant used for such an insecticidal aerosol.
[0008]
Insecticidal components include natural pyrethrin, pyrethrin, allethrin, phthalthrin, resmethrin, framethrin, permethrin, phenothrin, ciphenothrin, praretrin, transfluthrin, imiprotolin, empentrin, etofenprox, and other carbamates such as propoxer and carbaryl Compounds; organic phosphorus compounds such as fenitrothion and DDVP; oxadiazole compounds such as methoxadiazone; pyrazole compounds such as fipronil; IBTA; IBTE; quaternary ammonium salt; benzyl salicylate and the like.
These can use 1 type (s) or 2 or more types, and should just use it so that it may become 0.1 to 1 weight% with respect to the insecticidal aerosol whole quantity, and also 0.1 to 0.5 weight%.
[0009]
Examples of the solvent include paraffinic solvents such as normal paraffin, isoparaffin, and mixtures thereof; alcohols such as ethanol and denatured alcohol; carbonate esters, lactate esters; polyvinyl pyrrolidone; glycols;
These 1 type (s) or 2 or more types are used and it is used so that it may become 10-30 weight% with respect to the insecticide aerosol whole quantity, Preferably it is 15-30 weight%.
[0010]
Examples of the propellant include liquefied gas such as liquefied petroleum gas, dimethyl ether, and difluoromonochloroethane; compressed gas such as carbon dioxide, nitrogen, and compressed air, and one or more of these are used.
[0011]
Furthermore, insecticide aerosols include repellents such as diethylmethoramide, di-n-butylsuccinate and hydroxyanisole; bactericides such as PCMX and IPBC; deodorants such as lauryl methacrylate, geranyl crotonate and catechin; Essential oils such as oil, lavender oil, mint oil; Perfume such as pinene, limonene, linalool, menthol, eugenol; nonionic surfactant, cationic surfactant, anionic surfactant, amphoteric surfactant, etc. S421, synergist such as sinepirin; antioxidant such as BHT and BHA may be blended.
[0012]
The method for enhancing the efficacy of the present invention can be applied to insecticide aerosols used for various pests such as flies, mosquitoes, cockroaches, spiders, ticks, chemists, geijigeji, dangamushi, and ants.
[0013]
【Example】
Hereinafter, the present invention will be described specifically by way of examples. However, the present invention is not limited only to these examples.
[0014]
(1) Insecticidal efficacy test Insecticidal aerosol agents (samples 1 to 3) described in Table 1 were prepared, 20 adult houseflies were placed in a cage (25 cm x 25 cm x 25 cm) and sprayed from a distance of 1 m for 1 second. . KT90 (90% knockdown time (seconds)) and lethality (%) after 24 hours were determined.
For comparison, a similar test was performed using an insecticide aerosol containing no water (commercial product A) and an insecticide aerosol containing 50% by weight of propellant (commercial product B).
[0015]
[Table 1]
Figure 0004335475
[0016]
As shown in Table 2, the measurement results of Samples 1 and 2 using the method for enhancing the efficacy of the present invention were superior to those of Sample 3 and commercially available products in both knockdown efficacy and insecticidal efficacy.
[0017]
[Table 2]
Figure 0004335475
[0018]
【The invention's effect】
According to the method for enhancing the efficacy of the present invention, the knockdown efficacy and insecticidal efficacy of the insecticide aerosol can be enhanced without using a synergist or the like.

Claims (1)

殺虫エアゾール剤全量に対して1〜10重量%の水、及び水に対して重量比で2〜5倍のパラフィン系溶剤を配合し、噴射剤の含有量を65〜90重量%とすることを特徴とする殺虫エアゾール剤の効力増強方法。1 to 10% by weight of water with respect to the total amount of the insecticidal aerosol , and 2 to 5 times the weight ratio of the paraffinic solvent with respect to the water , and the propellant content is 65 to 90% by weight. A method for enhancing the efficacy of a pesticide aerosol.
JP2001170399A 2001-06-06 2001-06-06 Method for enhancing efficacy of insecticidal aerosols Expired - Fee Related JP4335475B2 (en)

Priority Applications (1)

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JP4335475B2 true JP4335475B2 (en) 2009-09-30

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5250282B2 (en) * 2008-03-17 2013-07-31 ライオン株式会社 Sanitary pest control composition
JP5749101B2 (en) * 2011-04-18 2015-07-15 大日本除蟲菊株式会社 粉 Pest control powder

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