Aerosol for controlling crawling insects and mites, and method for controlling crawling insects and mites

Abstract

To provide an aerosol for controlling crawling insects and mites that exhibits excellent control effects against crawling insects and mites while improving the operational stability of the metering spray valve after repeated use. [Solution] An aerosol for controlling crawling insects and mites comprises a pressure-resistant container that encloses an aerosol concentrate containing a crawling insect and mite control component and an organic solvent, and a propellant; a metering spray valve 100 having a valve mechanism 10 and housing 20 including a stem 11, a stem rubber 12 and a spring 13; and a spray button provided with a spray nozzle, wherein the kinematic viscosity of the aerosol concentrate at 20°C is 2.0 to 20.0 cSt, the material of the stem rubber 12 includes acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, and the spray force at a distance of 5 cm from the spray nozzle is 3 to 50 gf.

Description

[Technical Field]

[0001] The present invention relates to an aerosol for controlling crawling insects and mites, comprising an aerosol concentrate containing a crawling insect and mite control component and an organic solvent, a pressure-resistant container in which the propellant is sealed, a metering spray valve assembled to the mouth of the pressure-resistant container, and a spray button provided with a spray nozzle connected to the metering spray valve, and a method for controlling crawling insects and mites using the same. [Background technology]

[0002] For insecticides targeting crawling insects such as cockroaches that roam floors and walls, as well as indoor dust mites, the most common types applied to areas where these insects live or travel are (1) fumigants, (2) full-volume spray aerosols, and (3) baits, each with its own unique characteristics in terms of formulation.

[0003] (1) Fumigants and (2) full-volume spray aerosols are classified as pharmaceuticals because they release the chemical to every corner of a room in one go, seal the room for a set period of time to increase the chemical concentration, and prevent people from entering the room during that time. While these formulations provide a lasting effect of controlling crawling insects and indoor dust mites for 2 to 4 weeks after a single application, they are not easy to use frequently because the procedure before use is time-consuming and special attention must be paid to the safety of the chemicals.

[0004] On the other hand, spot treatment (3) bait agents fall under the category of quasi-drugs with mild effects on the human body and are easier to use than (1) fumigants and (2) full-volume spray aerosols. However, because they are not spatial treatments, the contact efficiency between the chemical and pests and indoor dust mites is inferior, and they do not necessarily provide an efficient method of extermination.

[0005] Thus, conventionally, it has been considered difficult to develop a pest control agent for crawling insects and indoor dust mites that is a spatial treatment but falls under the category of a quasi-drug.

[0006] Incidentally, Patent Document 1 discloses a method for exterminating crawling insects by vaporizing an insecticide solution containing an insecticidal component and a solvent into a space such as an indoor space or storage space. The method uses a compound having a specific structure as the solvent and vaporizes the insecticide solution little by little over time using a piezo sprayer so that small insecticidal liquid particles remain suspended in the space. This method of Patent Document 1 proposes exterminating cockroaches by continuously releasing a small amount of chemical into the space over a long period of time, similar to a liquid electric mosquito repellent. However, since the target is cockroaches, which are tens of times more resistant to chemicals than mosquitoes, it is necessary to use a strong insecticidal component, which raises concerns about safety for humans.

[0007] The inventors of the present invention, in developing a space treatment agent for controlling crawling insects and indoor dust mites that falls under the category of quasi-drugs, have diligently studied to develop a highly safe formulation that can be used even in the presence of people, rather than formulations that are used once every 2 to 4 weeks, such as (1) fumigants or (2) full-volume spray aerosols, but rather a formulation that provides pest control for several days under practical conditions with a single quantitative spray treatment, that is basically used once every 1 to 2 days. As a result, they have invented an extremely useful "method for controlling pests and mites" (see Patent Document 2) that is effective not only against crawling insects and indoor dust mites but also against flying insects on the day of spraying. Furthermore, in order to achieve a practical extermination effect against flying insects, this invention is designed so that the spray characteristics of the aerosol are such that the sprayed particles after spraying are formed into floating particles and adhesive particles that adhere to walls and other surfaces and settle on floors, and preferably so that 30 to 80% of the total sprayed particles adhere to walls and other surfaces or settle on floors within one hour after spraying. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2009-143868 [Patent Document 2] Patent No. 5517122 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] Since crawling insects such as cockroaches and indoor dust mites are a problem in all parts of the house, including kitchens, living rooms, Japanese-style rooms, bedrooms, and balconies, using an aerosol for controlling crawling insects and mites equipped with a metered spray valve requires spraying in each room, which tends to result in many presses of the spray button. Therefore, ensuring the stable operation of the metered spray valve in an aerosol for controlling crawling insects and mites is a crucial issue.

[0010] The present invention has been made in view of the above problems, and aims to provide a crawling insect and mite control aerosol equipped with a quantitative spray valve that can improve the operational stability of the quantitative spray valve when the crawling insect and mite control aerosol is used repeatedly, and that can exhibit excellent control effects against crawling insects and mites, particularly cockroaches, bed bugs, and indoor dust mites, as well as a crawling insect and mite control method using the crawling insect and mite control aerosol. [Means for solving the problem]

[0011] As a result of various studies, the inventors have found that by adjusting the kinematic viscosity of the aerosol concentrate at 20°C to a specific range and setting the spray force at a distance of 5 cm from the nozzle to a specific range, the invention can be used to maintain the operational stability of the metered spray valve even after repeated use, while providing excellent control effects against crawling insects such as cockroaches and bed bugs, and indoor dust mites, thus completing the present invention.

[0012] In other words, the present invention has found that the following configuration is highly effective in solving the above problems. (1) A pressure-resistant container in which an aerosol concentrate containing a crawling insect and mite control component and an organic solvent, and a propellant are sealed, A metered injection valve having a valve mechanism including a stem, a stem rubber, and a spring, and a housing for housing the valve mechanism, and assembled to the mouth of the pressure-resistant container, An injection button provided with an injection port connected to the metered injection valve, A crawling pest and mite control aerosol comprising: The kinematic viscosity of the aerosol stock solution at 20 °C is 2.0 to 20.0 cSt, The material of the stem rubber includes acrylonitrile-butadiene rubber and / or isobutylene-isoprene rubber, A crawling pest and mite control aerosol, which is set so that the injection force is 3 to 50 gf at a position 5 cm away from the injection port. (2) The crawling pest and mite control aerosol according to (1), wherein the material of the stem rubber is acrylonitrile-butadiene rubber. (3) The crawling pest and mite control aerosol according to (1) or (2), wherein the spring is a spring having a spring constant of 2.0 N / mm or more. (4) The organic solvent is one or more selected from the group consisting of lower alcohols having 2 to 3 carbon atoms, hydrocarbon solvents, and higher fatty acid esters having 16 to 20 carbon atoms. The crawling pest and mite control aerosol according to any one of (1) to (3). (5) The volume ratio (a / b) of the aerosol stock solution (a) to the propellant (b) is 2 / 98 to 55 / 45. The crawling pest and mite control aerosol according to any one of (1) to (4). (6) The crawling pest and mite control component is one or more selected from the group consisting of transfluthrin, metofluthrin, phenothrin, permethrin, cyphenothrin, cyfluthrin, tralomethrin, deltamethrin, permethrin, benzyl salicylate, and benzyl benzoate. The crawling pest and mite control aerosol according to any one of (1) to (5). (7) The crawling pest and mite are one or more selected from the group consisting of cockroaches, bedbugs, and indoor dust mites. The crawling pest and mite control aerosol according to any one of (1) to (6). (8) Using the aerosol for controlling crawling pests and mites according to any one of (1) to (7), spraying the aerosol stock solution into the treatment space to knockdown or kill the crawling pests, a method for controlling crawling pests and mites. (9) Using the aerosol for controlling crawling pests and mites according to any one of (1) to (8), spraying the aerosol stock solution into the treatment space to repel the crawling pests or mites, a method for controlling crawling pests and mites.

Advantages of the Invention

[0013] The aerosol for controlling crawling pests and mites, and the method for controlling crawling pests and mites of the present invention can maintain the operating stability of the metering injection valve even when the aerosol for controlling crawling pests and mites equipped with a metering injection valve is repeatedly used, and can exert excellent control effects on cockroaches, bedbugs and indoor dust mites among crawling pests and indoor dust mites. Therefore, it has high practicality.

Brief Description of the Drawings

[0014] [Figure 1] FIG. ① is a cross-sectional view of the metering injection valve provided in the aerosol for controlling crawling pests and mites according to the present invention.

Modes for Carrying Out the Invention

[0015] The aerosol for controlling crawling pests and mites of the present invention comprises an aerosol stock solution containing a component for controlling crawling pests and mites and an organic solvent, a pressure-resistant container in which an aerosol agent is enclosed, a metering injection valve assembled to the mouth of the pressure-resistant container, and an injection button provided with an injection port connected to the metering injection valve. Hereinafter, the aerosol for controlling crawling pests and mites of the present invention will be described. However, the present invention is not intended to be limited to the configurations described in the following embodiments, drawings and examples. In addition, when there is a notation "~" indicating a range in this specification, it shall include the upper and lower limits.

[0016] [Aerosol Stock Solution]< [Component for Controlling Crawling Pests and Mites] Note: In the translation of "図1は、本発明に係る匍匐害虫、ダニ防除用エアゾールが備える定量噴射バルブの断面図である。", the "①" is used as a placeholder for "1" in the original text which might be a reference number in Chinese. It should be adjusted according to the actual number in the original context. If it is indeed "1", then it should be "FIG. 1".One of the main components of the aerosol concentrate, used for controlling creeping insects and mites, is pyrethroid compounds such as transfluthrin, metofluthrin, profluthrin, phenothrin, cyphenothrin, permethrin, cyfluthrin, bifenthrin, fenpropathrin, tralomethrin, etofenprox, mepafluthrin, empenthrin, dimefluthrin, monfluorothrin, heptafluthrin, phthalthrin, resmethrin, allethrin, prallethrin, flamethrin, deltamethrin, cypermethrin, and imiprothrin. Examples include silicon compounds such as ofhen, organophosphorus compounds such as dichlorvos and fenitrothion, carbamate compounds such as propoxur and 3-iodo-2-propynylbutylcarbamate, neonicotinoid compounds such as dinotefuran, imidacloprid and clothianidin, fipronil, indoxacarb, fluxamethamide, brofuranilide, methoxadiazone, 5-chloro-2-trifluoromethanesulfonamide methyl benzoate (amidoflumet), phenyl salicylate, benzyl salicylate, and benzyl benzoate. Among these, from the viewpoint of safety to the human body, pyrethroid compounds having a tetrafluorobenzyl structure such as transfluthrin, metofluthrin, profluthrin, dimefluthrin, monfluorothrin, heptafluthrin, and mepafluthrin; pyrethroid compounds having a phenoxybenzyl structure such as phenothrin, cyphenothrin, permethrin, cyfluthrin, fenpropathrin, tralomethrin, etofenprox, deltamethrin, and cypermethrin; compounds having a benzyl ester structure such as imiprothrin, methoxadiazone, and benzyl salicylate and benzyl benzoate are preferred, with transfluthrin, metofluthrin, phenothrin, permethrin, cyphenothrin, cyfluthrin, tralomethrin, deltamethrin, cypermethrin, imiprothrin, methoxadiazone, benzyl salicylate, and benzyl benzoate being more preferred. Furthermore, if optical isomers or geometric isomers based on chiral carbons exist in the acidic or alcoholic portions of pyrethroid compounds, these are, of course, also included in the present invention, as are individual isomers or any mixture thereof.

[0017] The content of the crawling insect and mite control component in the aerosol concentrate is not particularly limited, but considering that it is sprayed into a treatment space, it is preferably adjusted to 1.0 to 80.0% by weight, more preferably to 5.0 to 75.0% by weight, and even more preferably to 10.0 to 70.0% by weight. Within this range, the crawling insect and mite control component dissolves easily in the organic solvent, and when the aerosol concentrate is sprayed, the sprayed particles are formed in an optimal state, allowing the crawling insect and mite control component to exert its effect.

[0018] [Organic solvents] The main components of the aerosol concentrate include organic solvents in addition to the above-mentioned crawling insect and mite control components. Examples of such organic solvents include lower alcohols with 2-3 carbon atoms such as ethanol, n-propanol, and isopropanol (IPA); hydrocarbon solvents such as n-paraffin and isoparaffin; higher fatty acid esters with 16-20 carbon atoms such as isopropyl myristate (IPM) and hexyl laurate; and glycol ether solvents with 3-10 carbon atoms. Of these, one or more selected from the group consisting of lower alcohols with 2-3 carbon atoms, hydrocarbon solvents, and higher fatty acid esters with 16-20 carbon atoms are preferred. The use of lower alcohols with 2-3 carbon atoms and / or hydrocarbon solvents is more preferred, the use of lower alcohols with 2-3 carbon atoms is even more preferred, and ethanol is particularly preferred.

[0019] [Other ingredients] In addition to the above components, the aerosol for controlling creeping insects and mites of the present invention may also have a nonionic surfactant added as a solubilizing agent to the aerosol concentrate. Examples of nonionic surfactants include ethers such as polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, and polyoxyethylene alkylamino ethers; fatty acid esters such as polyethylene glycol fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene glycerin fatty acid esters; polyoxyethylene styrene-derived phenol; and polyalkaloamides of fatty acids. Of these, ethers can be suitably used.

[0020] Furthermore, fungicides, antibacterial agents, disinfectants, fragrances, deodorizers, stabilizers, antistatic agents, defoamers, excipients, synergists, etc., targeting molds and fungi may be added as appropriate. Examples of fungicides, antibacterial agents, and disinfectants include hinokitiol, 2-mercaptobenzothiazole, 2-(4-thiazolyl)bentimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, triforine, 3-methyl-4-isopropylphenol, and ortho-phenylphenol. As an air freshener, peppermint oil, orange oil, lemon oil, lavender oil, peppermint oil, eucalyptus oil, citronella oil, lime oil, yuzu oil, jasmine oil, cypress oil, green tea essential oil, neroli oil, geranium oil, petitgrain oil, lemongrass oil, cinnamon oil, lemon eucalyptus oil, thyme oil, perilla oil, pine oil, rose oil, rosemary oil, camphor oil, aromatic oil, clary sage oil, sandalwood oil, spearmint oil, star anise oil, lavandin oil, and Spider oil, Okochia oil, Patchouli oil, Tonka bean tincture, Turpentine oil, Alligator bean tincture, Basil oil, Nutmeg oil, Clove oil, Bois de Rose oil, Cananga oil, Cardamom oil, Cassia oil, Cedarwood oil, Mandarin oil, Tangerine oil, Anise oil, Bay oil, Coriander oil, Elemi oil, Fennel oil, Galbanum oil, Thuja oil, Vetiver oil, Bergamot oil, Ylang-ylang oil, Grapefruit oil, Aldehydes with 6-12 carbon atoms (for example, he Xylaldehyde, Octanal, Nonanal, Undecylaldehyde, Undecanal, Decylaldehyde, etc.), Anisaldehyde, Cuminaldehyde, Acetaldehyde Phenylethylpropyl Acetal, Acetophenone, Acetylcedrene, Adoxal, Allylamyl Glycolate, Allylcyclohexanepropionate, Damascone, α-Damascone, β-Damascone, Ambretlid, Ambroxan, Amyl Cinna Micaldehyde, Amyl Cinnamic Aldehyde Dimethyl Acetal, Amyl Valerianate, Amyl Salicylate, Isoamyl Acetate, Butyl Acetate, Ethyl Butyrate, Acetyl Eugenol, Isoamyl Salicylate, Indole, Allyl Caproate, Ethyl Caproate, Ethyl Propionate, Ethyl Acetacetate, Tesalone, α-Ionone, β-Ionone, α-Methyl Ionone, α-Isomethyl Ionone,β-methylionone, β-isomethylionone, γ-methylionone, γ-isomethylionone, indene, aurantiol, oakmoss No.1, olibon, oxyphenylone, caryophyllene, cashmeran, carvon, caron, coumarin, p-crezyl methyl ether, geraniol, geranyl acetate, geranyl formate, geranyl nitrile, tetrahydrogeraniol, tetrahydrogeranyl acetate, coavon, sandaloa, sandera, santarex, santarinol, methyl salicylate, cinnamic alcohol, cin Namic aldehyde, cis jasmone, citral, citral dimethyl acetal, citrasal, citronellal, citronellol, citronellyl acetate, citronellyl formate, citronellyl nitrile, cyclamen aldehyde, cinnamyl acetate, dihydrojasmone, dimitol, isocyclocitral, jasmar, jasmolactone, jasmophilan, styraryl acetate, styraryl propionate, cedro amber, cedryl acetate, cedrol, celestrid, terpineol, α-terpineol, γ-terpineol Lupineol, terpinyl acetate, thymol, delta-damascone, delta-C6-C13 lactone, tonalid, traceolide, tripral, isononyl acetate, nerol, neryl acetate, neobergamate, nopil acetate, nopil alcohol, bacdanol, levosandol, hyacinth dimethyl acetal, hydrotropic alcohol, hydroxycitronellol, hydroxycitronellal, α-pinene, β-pinene, butyl butyrate, p-tert-butylcyclohexanol, p-tert-butylcyclohexyl Acetate, o-tert-butylcyclohexanol, o-tert-butylcyclohexyl acetate, p-tert-pentylcyclohexyl acetate, diphenyl oxide, fruitate, fentil alcohol, phenylethylphenyl acetate, isobutylquinoline, phenylethyl alcohol, phenylethyl acetate, phenylacetaldehyde dimethyl acetal, benzyl acetate, benzyl alcohol, benzyl salicylate, benzaldehyde, benzyl formate, dimethylbenzylcarbinol, helional,Heliotropin, cis-3-hexenol, cis-3-hexenyl acetate, cis-3-hexenyl salicylate, hexyl cinnamic aldehyde, hexyl salicylate, pentalid, veldoc, orthobornyl acetate, isobornyl acetate, isoborneol, borneol, manzanate, mayol, mugaldehyde, miracaldehyde, myrcenol, dihydromyrcenol, dimilcetol, mugol, musk™-II, musk 781, musk C14, musk T, musk ketone, musk tibetine, musk mo Sken, menthanyl acetate, menthonate, methyl anthranilate, methyl eugenol, menthol, methylphenyl acetate, eugenol, isoeugenol, methylisoeugenol, γ-C6~13 lactone (e.g., γ-nonalactone, γ-decalactone, γ-undecalactone, etc.), lime oxide, methyl lavender ketone, dihydrolinalool, ligstral, limonene, linalool, linalool oxide, tetrahydrolinalool, ethyllinalool, tetrahydrolinalyl acetate, linalyl acetate, erythryl Chirlinalyl acetate, liral, rubafuran, rosephenone, rose oxide, benzoin, peruvian balsam, tolu balsam, tuberose oil, musk tincture, castoreum tincture, civet tincture, ambergris tincture, dihydroterpinyl acetate, 1,8-cineole, 7-aceti-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene, 4-acetoxy-3-amyltetrahydropyran, tricyclodecenyl acetate, β-naphthylmethyl ester, benzophenone, benzylbenzo Ethol, dimethylheptanol, mylacaldehyde, cumin alcohol, menthone, thiomenthone, cyclohexyl silicylate, santalina alcohol, vanillin, ethyl vanillin, isolongifolanone, bagdanol, 3,7-dimethyl-7-methoxyoctan-2-ol, 2,4,6-trimethyl-2-phenyl-1,3-dioxane, 4,6,6,7,8,8-hexamethyl-1,3,4,6,7,8-hexahydrocyclopentabenzopyran, dimethylbenzyl acetate, methyldihydrojasmonate, undecalactone gamma,Cyclogalbanum, 1-hexanol, cis-3-hexyl acetate, 1,4-cineole, α-terpinene, p-cymene, cis-ocimene, cis-β-ocimene, rimethol, trans-β-ocimene, terpinolene, 2-pentyloxyglycolate allyl, 2-n-pentylcyclopentanone, benzyl butyrate, ethyl acetate, ethyl caproate, isoamyl butyrate, allylhexanoate, allylheptanoate, allyloctanoate, allyl isobutyloxaacetate, allyl-n-amyloxyacetate, allylcyclohexyl acetate, allylcyclohexylpropionate, allylcyclohexyloxyacetate, allylphenoxyacetate Aromatic components include anisyl acetate, p-menthane-3,8-diol, 6-acetyl-1,1,2,4,4,7-hexamethyltetraline, cinnamyl formate, pulegone, galaxolide, camphor, neral, perillaldehyde, indole aroma, dihydroterpinyl acetate, γ-terpinene, ethyl phenyl acetate, methylheptenone, prenyl acetate, p-cymene, β-naphthyl methyl ether, hexyl acetate, ethyl 2-methylpentanoate, 1-hexanol, maltol, allyl cyclohexanepropionate, α,3,3-trimethylcyclohexanemethanol formate, and fragrance components containing green leaf alcohol and green leaf aldehyde, known as "green scent." Synergistic agents include piperonyl butoxide and octyl bicycloheptene dicarboxymide.

[0021] <Kinematic viscosity> The aerosol concentrate of the crawling insect and mite control aerosol of the present invention is adjusted so that its kinematic viscosity at 20°C is 2.0 to 20.0 cSt, more preferably 3.0 to 15.0 cSt, and even more preferably 3.5 to 10.0 cSt. If the kinematic viscosity at 20°C is adjusted to 2.0 to 20.0 cSt, the operational stability of the metering spray valve after repeated use of the crawling insect and mite control aerosol can be further improved, while exhibiting excellent control effects against crawling insects and indoor dust mites, particularly cockroaches, bed bugs, and indoor dust mites. Such kinematic viscosity can be calculated by the following formula (I). (Kinematic viscosity of aerosol concentrate at 20°C [cSt]) = (Viscosity of aerosol concentrate at 20°C [mPa·s]) ÷ (Specific gravity of aerosol concentrate at 20°C [g / ml]) ... (I) Here, the viscosity η20 of the aerosol concentrate can be measured using a viscometer. In this embodiment, the aerosol concentrate in a beaker was adjusted to 20°C in a constant temperature water bath (manufactured by IWAKI), and the viscosity at each temperature (measurement conditions: 60 rpm, 30 seconds) was measured using a Type B viscometer (manufactured by Tokyo Keiki Co., Ltd., rotor No. 1). Furthermore, the specific gravity of the aerosol concentrate at 20°C can be calculated based on the specific gravity (20°C) of the crawling insect, mite control components, and organic solvents exemplified below, taking into account the mixing ratio, etc. Transfluthrin 1.51 Metofluthrin 1.28 • Profluthrin 1.28 • Phenothrin 1.06 • Permethrin 1.20 • Empenthrin 0.93 Ethanol 0.79 Isopropanol 0.7g Neothiozol 0.76 Isopropyl myristate 0.86 Methyl isobutyl ketone 0.80 Phenylenyl glycol 1.11

[0022] <propellant> The propellants used in the aerosol for controlling crawling insects and mites of the present invention include liquefied petroleum gas (LPG) such as propane, n-butane, and isobutane, liquefied gases such as dimethyl ether (DME) and hydrofluoroolefins such as HFO1234ze, and compressed gases such as nitrogen gas, carbon dioxide, nitrous oxide, and compressed air. The above propellants can be used individually or in mixtures, but those mainly composed of liquefied petroleum gas (LPG) or dimethyl ether (DME) are easier to use. It is preferable to use the propellant with the gauge pressure (at 20°C) adjusted to 0.1 to 0.7 MPa.

[0023] The aerosol for controlling crawling insects and mites of the present invention is formulated such that the volume ratio (a / b) of the aerosol concentrate (a) to the propellant (b) is adjusted to 2 / 98 to 60 / 40, preferably to 5 / 95 to 55 / 45, and more preferably to 10 / 90 to 50 / 50. When the volume ratio (a / b) is within the above range, a sufficient amount of crawling insect and mite control components can be uniformly diffused across the entire floor surface.

[0024] <Aerosol for controlling crawling insects and mites> The aerosol for controlling crawling insects and mites according to the present invention mainly consists of a pressure-resistant container (aerosol container), a metered-dose spray valve, and a spray button. As described above, a crawling insect and mite control component, organic solvent, propellant, and other components to be added as needed are selected, sealed in a pressure-resistant container with a metered-dose spray valve attached to its opening, and a spray button with a spray nozzle is connected to the metered-dose spray valve to complete the aerosol product. This aerosol product is the aerosol for controlling crawling insects and mites according to the present invention, and the aerosol concentrate is sprayed as spray particles into the treatment space. In this specification, the control effect refers to the combination of the extermination effect based on knockdown effect and lethal effect, as well as the repellent effect. Even if the extermination effect is low, if there is a sufficient repellent effect, control can be achieved in practical use in many situations.

[0025] <Quantitative injection valve> Figure 1 is an example of a cross-sectional view of a metered-dose spray valve 100 provided in an aerosol for controlling crawling insects and mites according to the present invention. The metered-dose spray valve 100 is fixed to the mouth of a pressure vessel and connected to a spray button. The spray button is an operating part for spraying the aerosol concentrate, and this spray button is provided with a nozzle through which the aerosol concentrate is ejected from the aerosol container to the outside (processing space). The metered-dose spray valve 100 has a valve mechanism 10 including a stem 11, a stem rubber 12, and a spring 13, and a housing 20 that houses the valve mechanism 10. The spring 13 can be a spring with a spring constant of 2.0 N / mm or more, preferably a spring with a spring constant of 3.0 N / mm or more, more preferably a spring with a spring constant of 3.3 N / mm or more, particularly preferably a spring with a spring constant of 3.7 N / mm or more, and especially preferably a spring with a spring constant of 4.0 N / mm or more. The upper limit of the spring constant of spring 13 is not particularly limited, but it is preferably 6.0 N / mm or less, and more preferably 5.0 N / mm or less. Furthermore, the material of the stem rubber 12 is preferably acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, and it is preferable to use acrylonitrile butadiene rubber or isobutylene isoprene rubber, and more preferably acrylonitrile butadiene rubber. In the aerosol for controlling crawling insects and mites of the present invention, the aerosol concentrate containing the crawling insect and mite control components and organic solvent may affect the operational stability of the metering spray valve after repeated use of the aerosol. Modification of the stem rubber material can be considered as a means to improve the operational stability of the metering spray valve after repeated use, but there are many factors to consider when verifying the compatibility between the aerosol concentrate and the stem rubber. Considering this point, and focusing on modifying the stem rubber material, we have found that by using a material containing acrylonitrile butadiene rubber and / or isobutylene isoprene rubber as the stem rubber material, preferably using acrylonitrile butadiene rubber or isobutylene isoprene rubber, and more preferably using acrylonitrile butadiene rubber, the operational stability of the metering injection valve can be improved, and thus the present invention has been completed.The spring can be one with a spring constant of 2.0 N / mm or more, preferably one with a spring constant of 3.0 N / mm or more, more preferably one with a spring constant of 3.3 N / mm or more, particularly preferably one with a spring constant of 3.7 N / mm or more, and especially preferably one with a spring constant of 4.0 N / mm or more. The upper limit of the spring constant of the spring is not particularly limited, but it is preferably 6.0 N / mm or less, and more preferably 5.0 N / mm or less. Here, the spring constant is given by the following equation (1): Spring constant (N / mm) = (Shear modulus × wire diameter to the power of 4) / (8 × effective number of turns × center diameter to the power of 3) ... (1) It can be calculated from this. Examples of springs with a spring constant of 2.0 N / mm or more include springs manufactured by Mitani Valve Co., Ltd. (product number: SP-C321, material: stainless steel (SUS304), wire diameter: φ0.60 mm, number of turns: 9 3 / 4) and springs manufactured by Mitani Valve Co., Ltd. (product number: SP-C314, material: stainless steel (SUS304), wire diameter: φ0.55 mm, number of turns: 9 3 / 4).

[0026] In the metered spray valve 100, a predetermined amount of aerosol concentrate is introduced from a pressure-resistant container into the metered chamber 21. When the spray button of the aerosol for controlling crawling insects and mites is pressed once, the pressure of the propellant activates the metered spray valve 100, causing the aerosol concentrate in the metered chamber 21 to rise to the nozzle and be sprayed into the treatment space. The spray volume of the aerosol concentrate at this time is adjusted to 0.1 to 3.0 mL, preferably to 0.2 to 1.0 mL, and more preferably to 0.2 to 0.9 mL. According to the present invention's aerosol for controlling crawling insects and mites, the cooperation between a stem rubber containing acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, preferably a stem rubber made of acrylonitrile butadiene rubber or isobutylene isoprene rubber, more preferably a stem rubber made of acrylonitrile butadiene rubber, and a spring improves the operational stability of the metered injection valve and further stabilizes the spray volume of the aerosol concentrate. If the spray volume of the aerosol concentrate is within the above range, spraying the aerosol for controlling crawling insects and mites once or several times will release the crawling insect and mite control component to, for example, 0.1 to 50 mg / m². 3 The degree of control is appropriate, and sufficient practical control effect against crawling insects and indoor dust mites is obtained in the treated space.

[0027] <Injection port> The number, shape, and size of the nozzles of the aerosol for controlling crawling insects and mites of the present invention are not particularly limited. For example, the number of nozzles may be one or two or more, but from the viewpoint of simple and low-cost manufacturing, it is preferable to have one nozzle. The shape (cross-sectional shape) of the nozzle may be circular, elliptical, polygonal, or various other irregular shapes. The opening area of ​​the nozzle is 0.05 to 8.0 mm². 2 Preferably, 0.1 to 4.0 mm 2 It is more preferable that the size be 0.2 to 3.0 mm. 2It is even more preferable that the nozzles are 0.3 mm or larger, more preferably 0.4 mm or larger, and even more preferably 0.6 mm or larger.

[0028] <Nozzle> The presence or absence of a nozzle in the aerosol for controlling crawling insects and mites of the present invention is not particularly limited. If a nozzle is present, it is preferable that it is a horizontally oriented nozzle or a nozzle directed diagonally upward. The spray axis of the spray nozzle is preferably at an elevation angle of 0 to 60 degrees with respect to the horizontal plane, more preferably at an elevation angle of 10 to 60 degrees with respect to the horizontal plane, and particularly preferably at an elevation angle of 15 to 50 degrees with respect to the horizontal plane.

[0029] <Pressure vessel> Furthermore, the pressure-resistant container for the aerosol for controlling crawling insects and mites of the present invention is not particularly limited, but its material may include metals such as aluminum or tinplate, synthetic resins such as polyethylene terephthalate, or pressure-resistant glass. The shape of the pressure-resistant container may also be a standard cylindrical can or an irregularly shaped can. In addition, if the material of the pressure-resistant container is synthetic resin or pressure-resistant glass, it may be semi-transparent or transparent.

[0030] <Spray button> The spray button for the aerosol for controlling crawling insects and mites of the present invention is not particularly limited, but may be a push-down type button or a trigger type button.

[0031] The present invention's aerosol for controlling crawling insects and mites releases a crawling insect and mite control component into the air at a rate of 0.1 to 50 mg / m³ when sprayed into the air in an indoor space. 3 It is preferable to set it to be 0.5 to 50 mg / m². 3It is more preferably set to be such that. In the air of the indoor space, for crawling pests and mite control components, the release amount is 0.1 to 50 mg / m 3 When the aerosol stock solution is sprayed so as to be such that, it is preferably set that 30% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying, more preferably set that 40% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying, and even more preferably set that 50% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying. Here, "diffusing and adhering to the entire floor surface of the indoor space" for the crawling pest and mite control components means that as long as the floor surface can exhibit the crawling pest and mite control effect by the adhered crawling pest and mite control components, it is not necessarily required that the crawling pest and mite control components physically adhere to the entire floor surface. Preferably, 30% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying, more preferably 40% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying, and even more preferably 50% or more of the crawling pest and mite control components as weight diffuse and adhere to the entire floor surface of the indoor space within 1 hour after spraying. Thus, the aerosol for controlling crawling pests of the present invention has a strong control effect on crawling pests and mites wandering on the floor surface, and has particularly excellent knockdown, lethal or repellent effects. Also, the volume of the indoor space to be treated is not particularly limited, but the volume corresponding to a room of 4.5 to 8 tatami mats is 18.8 to 33.3 m 3 [[ID=​4]](area 7.5 to 13.3 m 2 , height 2.2 to 3.0 m) is common. However, even in an indoor space with a larger volume or an indoor space with a smaller volume, according to the volume of the indoor space, in the air of the indoor space, for crawling pests and mite control components, the release amount is 0.1 to 50 mg / m 3By appropriately setting the number of sprays, spray volume, etc., a similar crawling insect and mite control effect can be obtained regardless of the volume of the indoor space. The frequency of use of the crawling insect and mite control aerosol of the present invention is preferably at an appropriate time depending on the frequency and situation of the pest outbreak, so as to ensure that the amount of crawling insect and mite control component released is within the above range. Furthermore, from the viewpoint of effectively controlling crawling insects and indoor dust mites, the crawling insect and mite control aerosol of the present invention is preferably designed to be sprayed into the air in an indoor space, so-called spatial treatment, as described above, but it may also be designed to be sprayed directly onto the target pests or mites, so-called direct hit treatment. It may also be designed to be used for localized surface treatment in gaps, so-called gap treatment.

[0032] <Injection power> The aerosol for controlling crawling insects and mites of the present invention is preferably set to have a spray force of 3 to 50 gf at a distance of 5 cm from the nozzle, more preferably 5 to 40 gf, and even more preferably 10 to 35 gf. If the spray force is 3 to 50 gf, the majority of the crawling insect and mite control components will quickly settle and adhere to the entire floor surface of the indoor treatment space, providing a practically sufficient control effect against crawling insects and indoor dust mites. If the spray force is less than 3 gf, the spray force may be insufficient, resulting in inadequate diffusion of the spray particles onto the floor surface. On the other hand, if the spray force exceeds 50 gf, good diffusion may not be obtained. Such spray force can be appropriately adjusted by the composition of the aerosol concentrate, the internal pressure of the aerosol container, the shape of the nozzle, etc. In this embodiment, the spray force of the aerosol for controlling crawling insects and mites was measured using a digital force gauge (FGC-0.5, manufactured by Nidec-Shimpo Corporation).

[0033] <Target pests> The present invention's aerosol for controlling crawling insects and mites is effective against cockroaches such as the American cockroach, German cockroach, and other cockroaches; bed bugs such as the Chinese bed bug and the Taiwanese bed bug; stink bugs such as the brown marmorated stink bug; ants such as the black garden ant, reticulated ant, brown ant, house ant, red imported fire ant, and other ants; spiders such as the huntsman spider, spotted house spider, and redback spider; millipedes; centipedes such as the giant centipede; pill bugs; sowbugs; Formosan subterranean termites and Japanese subterranean termites. In addition to termites and crawling insects such as caterpillars, it can be used to control various pests such as mosquitoes such as Culex pipiens, Aedes albopictus, Aedes aegypti, and Culex pipiens, flies such as houseflies and flesh flies, fruit flies, drain flies, midges, wasps, moths, clothes moths such as clothes moths and weevil moths, carpet beetles such as carpet beetles and lesser carpet beetles, stored grain pests such as rice weevils, and indoor dust mites such as flour mites, house dust mites, dust mites, predatory mites, and house dust mites. In particular, it is effective in controlling cockroaches such as the American cockroach, Oriental cockroach, and German cockroach; bed bugs such as the bed bug and Taiwanese bed bug; ants such as the black garden ant, reticulated ant, brown ant, house ant, red imported fire ant, and red ant; spiders such as the huntsman spider, spotted house spider, and redback spider; and indoor dust mites such as flour mites, house dust mites, dust mites, predatory mites, and black house dust mites. It exhibits particularly excellent control effects against German cockroaches, American cockroaches, Oriental cockroaches, bed bugs, flour mites, house dust mites, dust mites, predatory mites, and black house dust mites.

[0034] <Methods for controlling creeping insects and mites> The crawling insect and mite control method of the present invention is carried out using the above-mentioned aerosol for crawling insect and mite control. First, in a pressure-resistant container equipped with a metering spray valve that contains an aerosol concentrate containing a crawling insect and mite control component and an organic solvent, and a propellant, when the spray button equipped with a spray nozzle connected to the metering spray valve is pressed once, the aerosol concentrate is sprayed from the spray nozzle as spray particles into the treatment space, and the majority of the crawling insect and mite control component quickly settles and adheres to the entire floor surface of the indoor treatment space, knocking down, killing, or repelling crawling insects and indoor dust mites that are crawling on the floor surface. [Examples]

[0035] [Test Example 1] To confirm the operational stability of the metering spray valve and the effectiveness of the crawling insect and mite control aerosol of the present invention after repeated use, we prepared and tested crawling insect and mite control aerosols (Examples 1-13) equipped with the characteristic configuration of the present invention. For comparison, we also prepared and tested crawling insect and mite control aerosols (Comparative Examples 1-2) that did not have the characteristic configuration of the present invention.

[0036] For Examples 1 to 13, aerosols for controlling crawling insects and mites were prepared using the compositions and conditions shown in Table 1, and the tests described below were performed. For Comparative Examples 1 and 2, aerosols for controlling crawling insects and mites were also prepared using the compositions and conditions shown in Table 1, and the same tests as in the Examples were performed. In all of the aerosols for controlling crawling insects and mites, acrylonitrile butadiene rubber was used for the stem rubber of the metered-dose spray valve. In addition, for the spring in the aerosol for controlling crawling insects of Example 13, spring A (labeled "A" in Table 1, wire diameter 0.55 mm, shear modulus 6.85 × 10⁻⁶) was used. 4 Using a spring with a center diameter of 3.15 mm, effective number of turns of 7.75, and spring constant of 3.24 N / mm, in the aerosols for controlling creeping insects of Examples 1 to 12 and Comparative Examples 1 to 2, spring B (labeled "B" in Table 1, wire diameter 0.6 mm, shear modulus 6.85 × 10) was used. 4 A spring with a center diameter of 3.2 mm, 8 effective turns, and a spring constant of 4.23 N / mm was used.

[0037] [Table 1]

[0038] (1) Operational stability of the metered injection valve after repeated use For the aerosols used to control crawling insects and mites, the return state of the spray button was examined after repeated use, and the operational stability of the metered-dose spray valve after repeated use was evaluated according to the following evaluation criteria. A: The spray button's return mechanism remains unchanged even after more than 20 uses. B: No change in the return state of the spray button after 18-19 uses. C: The spray button's return mechanism deteriorates after 3 to 17 uses. D: After 1-2 uses, the spray button's return mechanism deteriorated significantly.

[0039] (2) Extermination effect against cockroaches A total of four 20x20cm glass plates (for American cockroaches) enclosed in a 25m³ enclosure. 3 The room (equivalent to a 6-tatami mat room, area 10m²) 2 The glass plates were placed in the four corners of the room, and plastic rings approximately 20 cm in diameter, coated with petroleum jelly to prevent escape, were placed on top of each glass plate. The specified test insects (American cockroaches: 5 larvae) were released into each ring and allowed to roam freely. In Example 4, 0.4 mL of the test aerosol was sprayed four times at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed once at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 1, 2, 5, 6, 8, 10, and 11, as well as Comparative Examples 1 and 2, 0.2 mL of the test aerosol was sprayed six times at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed four times at a time in the center of the room (1.5 m above the floor), with the spray direction slightly upward. The test insects were left for 30 minutes after spraying to be exposed to the chemical, and during that time, the number of test insects that turned upside down was counted. 50The values ​​were determined. Furthermore, 30 minutes after spraying, the glass plate, along with the ring containing the test insects, was moved to a separate room, fed, and the lethality of the test insects was determined 24 hours later. In Table 2 below, the KT values ​​for the American cockroach are shown. 50 The values ​​were categorized as follows: "A" for 11.0 minutes or less, "B" for 11.1 to 18.0 minutes, "C" for 18.1 to 30.0 minutes, and "D" for estimated values ​​of 30.1 minutes or more. The mortality rate of the American cockroach was categorized as follows: "A" for 90-100%, "B" for 75-85%, "C" for 50-70%, and "D" for less than 50%.

[0040] (3) Efficacy against bed bugs A total of four 20 x 20 cm glass plates enclosed in a 25 m³ space. 3 The room (equivalent to a 6-tatami mat room, area 10m²) 2 The experiment involved setting up the four corners of a glass plate and placing a plastic ring approximately 10 cm in diameter, coated with petroleum jelly to prevent escape, on top of each glass plate. Five predetermined test insects (bed bugs) were then released into each ring and allowed to roam freely. In Example 4, 0.4 mL of the test aerosol was sprayed four times at the center of the room (1.5 m above the floor), with the spray direction slightly upward and at an angle. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed once at the center of the room (1.5 m above the floor), with the spray direction slightly upward and at an angle. In Examples 1, 2, 5, 6, 8, 10, and 11, as well as Comparative Examples 1 and 2, 0.2 mL of the test aerosol was sprayed six times at the center of the room (1.5 m above the floor), with the spray direction slightly upward and at an angle. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed four times at a time in the center of the room (1.5 m above the floor), with the spray direction slightly upward and at an angle. After allowing 30 minutes to stand to expose the test insects to the chemical, the glass plate, along with the ring containing the test insects, was moved to another room, and the mortality rate of the test insects was determined after another 24 hours. In Table 2 below, the mortality rate of bed bugs is indicated as "A" when it was 90-100%, "B" when it was 75-85%, "C" when it was 50-70%, and "D" when it was less than 50%.

[0041] (4) Adhesion rate and uniformity of diffusion of crawling insect and mite control components on the floor surface. Volume 25m 3 The room (equivalent to a 6-tatami mat room, area 10m²) 2 20 x 20 cm glass plates were placed at 6 to 8 locations on the floor of the room. In Example 4, 0.4 mL of the test aerosol was sprayed four times at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed once at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 1, 2, 5, 6, 8, 10, and 11, as well as Comparative Examples 1 and 2, 0.2 mL of the test aerosol was sprayed six times at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed four times at the center of the room (1.5 m above the floor), with the direction slightly diagonally upward. One hour after spraying, all glass plates were removed, and the adhering crawling insect and mite control components were washed off with acetone and quantitatively analyzed by gas chromatography. Based on the obtained analytical values, the ratio (floor surface adhesion rate) of the amount of crawling insect and mite control components that settled and adhered to the floor surface one hour after spraying (calculated by total amount of crawling insect and mite control components adhering to the glass plates × (room area) / (total area of ​​glass plates)) to the theoretical total amount of crawling insect and mite control components sprayed (which corresponds to the amount of crawling insect and mite control components sprayed multiplied by the volume in Table 1) was determined. In addition, the variation in the adhering crawling insect and mite control components between each glass plate was analyzed, and the uniformity of diffusion was evaluated. The results are shown in order of diffusion uniformity, from best to worst, as "A", "B", "C", and "D".

[0042] The results of the tests (1) to (4) above are shown in Table 2.

[0043] [Table 2]

[0044] The test results showed that the aerosols for controlling crawling insects and mites in Examples 1-13 had a high lethal effect, with a mortality rate of over 80% against crawling insects such as cockroaches and bed bugs, and KT 50 The values ​​were confirmed to produce a high knockdown effect against the American cockroach, with a knockdown time of 16.0 minutes or less. Furthermore, the test results showed that the crawling insect and mite control aerosols of Examples 1 to 13 not only had a floor adhesion rate of 50% or more of the crawling insect and mite control component one hour after spraying, but also that the crawling insect and mite control component was diffused and adhered almost uniformly across the entire floor surface. The kinematic viscosity of the aerosol concentrate at 20°C and the spray force at a distance of 5 cm from the nozzle of the pest control aerosols of Examples 1 to 13 were appropriately adjusted, so it is thought that the crawling insect and mite control component diffused and adhered uniformly across the entire floor surface, and as a result the crawling insect and mite control component made efficient contact with the crawling insects at any point on the floor surface.

[0045] On the other hand, in Comparative Example 1, which used an aerosol concentrate with a kinematic viscosity of less than 2.0 cSt at 20°C, the low kinematic viscosity of the aerosol concentrate at 20°C resulted in a slight decrease in the adhesion of the crawling insect and mite control components to the floor surface, and insufficient lethal and knockdown effects against crawling insects such as cockroaches and bed bugs were not obtained. Furthermore, as in Comparative Example 4, when an aerosol concentrate with a kinematic viscosity exceeding 20.0 cSt at 20°C was used, the high kinematic viscosity of the aerosol concentrate at 20°C reduced the uniformity of the diffusion of the crawling insect and mite control components to the floor surface, resulting in insufficient lethal and knockdown effects against crawling insects such as cockroaches and bed bugs.

[0046] Examples 1 to 13, which used spring A with a spring constant of 2.0 N / mm or higher in the metered injection valve, all showed no change in the return state of the injection button even after 18 or more uses, indicating good performance. In particular, Examples 1 to 12, which used spring B with a spring constant of 3.3 N / mm or higher in the metered injection valve, all showed no change in the return state of the injection button even after 20 or more uses, indicating particularly good operational stability of the metered injection valve after repeated use. On the other hand, as in Comparative Example 1, when an aerosol concentrate with a kinematic viscosity of less than 2.0 cSt at 20°C was used, the return state of the injection button deteriorated significantly after 1 to 2 uses, potentially leading to injection failure. This is thought to be because the aerosol concentrate with a kinematic viscosity of less than 2.0 cSt at 20°C degraded the acrylonitrile butadiene rubber, reducing the elasticity of the stem rubber. Thus, the compatibility between the stem rubber material and the aerosol concentrate is an extremely important consideration. It was found that if the aerosol concentrate adversely affects the acrylonitrile butadiene rubber, it is not possible to improve the operational stability of the metered-dose spray valve after repeated use. Furthermore, as in Comparative Example 2, when an aerosol concentrate with a kinematic viscosity exceeding 20.0 cSt at 20°C was used, the return condition of the spray button deteriorated after 3 to 17 uses, indicating that the operational stability of the metered-dose spray valve after repeated use was not particularly good.

[0047] [Test Example 2] An aerosol concentrate was prepared by dissolving benzyl salicylate (2.0 w / v%), a component for controlling crawling insects and mites, in isopropyl myristate, a solvent. The kinematic viscosity of this aerosol concentrate at 20°C was 9.4 cSt. 9 mL of the aerosol concentrate (a) and 21 mL of liquefied petroleum gas (b), a propellant, were pressurized and filled into an aerosol container (pressure-resistant container) with a metering valve with a spray capacity of 0.2 mL, such that the volume ratio (a) / (b) of the aerosol concentrate (a) to the propellant (b) was 30 / 70 by volume, thereby obtaining the crawling insect and mite control aerosol of Example 14. For this crawling insect and mite control aerosol, acrylonitrile butadiene rubber was used for the stem rubber of the metering valve, and spring B (wire diameter 0.6 mm, shear modulus 6.85 × 10) was used for the spring.4 Using a spring with a center diameter of 3.2 mm, 8 effective turns, and a spring constant of 4.23 N / mm, the spray force at a spray distance of 5 cm was 6 gf. When the operational stability of the metered spray valve after repeated use was confirmed using the obtained aerosol for controlling crawling insects and mites, the return state of the spray button remained unchanged even after more than 20 uses.

[0048] (5) Repellent effect against indoor dust mites Eight petri dishes, each 9 cm in diameter and 6 cm high (four for house dust mites and four for long-haired dust mites), were placed in a sealed 25m³ tank. 3 The experiment was conducted by placing cotton cloths with a predetermined diameter of approximately 4 cm inside waist-high petri dishes in the four corners of the room. In the center of the room (1.5 m above the floor), 0.2 mL each of the crawling insect and mite control aerosol from Example 14 was sprayed six times, changing the direction slightly upwards. After 24 hours of spraying, the cotton cloth was removed. This was placed in a 4 cm diameter petri dish, and 50 mg of attractant culture medium was placed in the center. Separately, approximately 10,000 of the test dust mites (Dermatophagoides pteronyssinus) or long-haired dust mites were released into a 9 cm diameter petri dish along with culture medium, and the previously prepared 4 cm diameter petri dish was placed in the center. Similarly, an untreated cotton cloth was used as the untreated group. After 24 hours, the number of mites that had entered the cotton cloth was counted, and the repellency rate was calculated according to the following formula. Repellency rate (%) = [Number of invading mites in untreated area - Number of invading mites in treated area] / Number of invading mites in untreated area × 100

[0049] The test results showed that when the crawling insect and mite control aerosol of Example 14 was used, it demonstrated an excellent repellency rate of over 85% against both Dermatophagoides pteronyssinus and Dermatophagoides farinae.

[0050] [Test Example 3] Transfluthrin (40 w / v%), a component for controlling creeping insects and mites, was dissolved in ethanol, a solvent, to prepare an aerosol concentrate. The kinematic viscosity of this aerosol concentrate at 20°C was 4.6 cSt. 9 mL of aerosol concentrate (a) and 21 mL of liquefied petroleum gas (b) were pressurized and filled into an aerosol container (pressure-resistant container) with a metering valve and a spray capacity of 0.2 mL, such that the volume ratio (a) / (b) of the aerosol concentrate (a) to the propellant dimethyl ether (b) was 30 / 70 by volume, to obtain the aerosol for controlling creeping insects and mites of Example 15. For this aerosol for controlling creeping insects and mites, isobutylene isoprene rubber was used for the stem rubber of the metering valve, and spring B (wire diameter 0.6 mm, shear modulus 6.85 × 10) was used for the spring. 4 Using a spring with a center diameter of 3.2 mm, 8 effective turns, and a spring constant of 4.23 N / mm, the spray force at a spray distance of 5 cm was 5 gf. When the operational stability of the metered spray valve after repeated use was confirmed using the obtained aerosol for controlling crawling insects and mites, the return state of the spray button remained unchanged even after more than 20 uses. [Industrial applicability]

[0051] The present invention provides an aerosol for controlling crawling insects and mites that has a high control effect against crawling insects and indoor dust mites, and a method for controlling crawling insects and mites using the same. [Explanation of Symbols]

[0052] 10 Valve mechanism 11 Stem 12 Stem Rubber 13 Spring 20 Housing 21 Quantification room 100 Metering injection valves

Claims

1. A pressure-resistant container containing an aerosol concentrate containing crawling insect and mite control components and an organic solvent, and a propellant, A metering injection valve having a valve mechanism including a stem, a stem rubber and a spring, and a housing that accommodates the valve mechanism, which is assembled to the mouth of the pressure vessel, A spray button provided with a spray nozzle connected to the aforementioned quantitative injection valve, An aerosol for controlling crawling insects and mites, equipped with The aforementioned crawling insect and mite control component is transfluthrin and / or metofluthrin. The aforementioned organic solvent is a lower alcohol having 2 to 3 carbon atoms. The kinematic viscosity of the aerosol concentrate at 20°C is 2.0 to 20.0 cSt. The volume ratio (a / b) of the aerosol concentrate (a) and the propellant (b) is 6 / 94 to 30 / 70. The material of the aforementioned stem rubber includes acrylonitrile butadiene rubber and / or isobutylene isoprene rubber. The spray volume of the aerosol concentrate when the spray button is pressed once is adjusted to 0.2 to 1.0 mL. The injection force is set to be 5 to 50 gf at a distance of 5 cm from the injection nozzle. When the aforementioned aerosol concentrate is sprayed into the treatment space, the total amount of the crawling insect and mite control component released into the air is 3.84 to 5.76 mg / m². ３ This aerosol is designed to control creeping insects and mites.

2. The aerosol for controlling crawling insects and mites according to claim 1, wherein the spraying process is carried out in an indoor space and directed into the air.

3. The aerosol for controlling crawling insects and mites according to claim 1 or 2, wherein the spring has a spring constant of 3.7 N / mm or more.

4. The crawling insect and mite control aerosol according to any one of claims 1 to 3, wherein the crawling insect and mite are one or more selected from the group consisting of cockroaches, bed bugs, and indoor dust mites.

5. The aerosol for controlling crawling insects and mites according to any one of claims 1 to 4, wherein the spray button is configured so that there is no change in the return state of the spray button when it is repeatedly pressed 18 times or more.

6. A method for controlling crawling insects and mites, comprising spraying the undiluted aerosol solution described in any one of claims 1 to 5 into a treatment space to knock down or kill crawling insects or mites.

7. A method for controlling crawling insects and mites, comprising spraying the undiluted aerosol solution described in any one of claims 1 to 5 into a treatment space to repel crawling insects or mites.

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