Aerosol for controlling creeping pests and mites, and method for controlling creeping pests and mites

Abstract

To provide aerosol for exterminating pest worms and mites that provides excellent pest control over pest worms and mites while improving the operational stability of a fixed amount jet valve thereof after repeated use.SOLUTION: The aerosol for exterminating pest worms and mites includes: a pressure-resistant container that encapsulates aerosol concentrate that contains pest worm / mite exterminating ingredients, and organic solvent, and propellant; a fixed amount jet valve 100 that has a valve mechanism 10 including a stem 11, a stem rubber 12, and a spring 13, and a housing 20; and a jet button with a jet port thereon. The kinetic viscosity of the aerosol concentrate at 20°C is 2.0 to 20.0 cSt, and the material of the stem rubber 12 contains acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, and the jet force at a distance of 5 cm from the jet port is 3 to 50 gf.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Typical insecticides that target crawling pests such as cockroaches and house dust mites that roam floors and walls and are applied to areas where crawling pests and house dust mites live or pass through include (1) fumigants, (2) full-volume aerosols, and (3) baits, each of which has its own unique formulation.

[0003] (1) Fumigants and (2) total-discharge aerosols fall into the category of pharmaceuticals because they spray the agent to every corner of a room in one go, sealing the room for a specified period of time to increase the agent concentration, and people cannot enter the room during that time. Although these formulations are effective in exterminating crawling pests and house dust mites for 2 to 4 weeks after a single application, they are not suitable for frequent and easy use because of the time-consuming procedures required before use and the need to pay particular attention to the safety of the agent.

[0004] On the other hand, (3) baits, which are applied point-by-point, are quasi-drugs that have a mild effect on the human body, and are easier to use than (1) fumigants or (2) full-volume spray aerosols. However, because they are not spatially applied, the contact efficiency between the agent and pests or house dust mites is lower, and they do not necessarily provide an efficient extermination method.

[0005] Thus, it has been thought that it would be difficult to develop a quasi-drug agent for controlling crawling pests and house dust mites that can be used for spatial treatment.

[0006] Incidentally, Patent Document 1 discloses a method for exterminating crawling pests by evaporating an insecticide liquid containing an insecticidal component and a solvent into a space such as an indoor space or storage space, in which a compound with a specific structure is used as the solvent, and the insecticide liquid is evaporated little by little over time using a piezoelectric sprayer so that small particles of the insecticide liquid remain suspended in the space. This method of Patent Document 1 proposes exterminating cockroaches by continuously emitting a small amount of chemical into the space over a long period of time, similar to a liquid electric mosquito repellent. However, since the method targets cockroaches, which are several tens of times more resistant to chemicals than mosquitoes, it is necessary to use a powerful insecticidal component, which raises concerns about safety for the human body.

[0007] The present inventors previously conducted extensive research to develop a spatial treatment agent that is a quasi-drug and can control crawling pests and house dust mites. The goal was to develop a formulation that would provide a control effect that would last for several days under practical conditions with a single, metered spray, rather than formulations that are used once every 2 to 4 weeks, such as (1) fumigants or (2) full-volume aerosol sprays. In other words, a formulation that would basically be used once every 1 to 2 days, and that would be highly safe and usable even in situations where people are present. As a result, the inventors invented an extremely useful "method for controlling pests and mites" (see Patent Document 2), which is effective not only against crawling pests and house dust mites, but also against flying pests on the day of spraying. In addition, in order to achieve practical extermination effects against flying pests, this invention is designed so that the aerosol spray characteristics are such that after spraying, the spray particles are formed into floating particles and adhesive particles that adhere to walls and settle on floors, and preferably 30 to 80% of the total spray particles adhere to walls or settle on floors within one hour of spraying. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-143868 [Patent Document 2] Patent No. 5517122 Summary of the Invention [Problem to be solved by the invention]

[0009] Creeping pests such as cockroaches and house dust mites are a problem everywhere in the house, including the kitchen, living room, Japanese-style rooms, bedrooms, and verandas. Therefore, when using an aerosol sprayer equipped with a metered-dose spray valve to control creeping pests and mites, spraying must be done in each room, which tends to increase the number of times the spray button is pressed. Therefore, when using an aerosol sprayer equipped with a metered-dose spray valve to control creeping pests and mites, it is important to ensure stable operation of the metered-dose spray valve.

[0010] The present invention has been made in consideration of the above-mentioned problems, and aims to provide an aerosol for controlling crawling pests and mites that can exhibit excellent control effects against cockroaches, bedbugs, and house dust mites, among other crawling pests and mites, while improving the operational stability of the aerosol for controlling crawling pests and mites equipped with a metered dose injection valve when the aerosol is used repeatedly, and a method for controlling crawling pests and mites using the aerosol for controlling crawling pests and mites. [Means for solving the problem]

[0011] As a result of extensive investigations, the inventors have discovered that for an aerosol concentrate containing a crawling pest and mite control ingredient and an organic solvent, and an aerosol for controlling crawling pests and mites equipped with a metered dose valve using a propellant, by adjusting the kinematic viscosity of the aerosol concentrate at 20°C to within a specific range and setting the spray force at a distance of 5 cm from the nozzle to within a specific range, the operational stability of the metered dose valve can be maintained even when used repeatedly, and excellent control effects against crawling pests such as cockroaches and bedbugs, and house dust mites can be achieved, leading to the completion of the present invention.

[0012] That is, the present invention has found that the following configurations are highly effective in solving the above problems. (1) A pressure-resistant container in which an aerosol concentrate containing a crawling pest and mite control component and an organic solvent, and a propellant are sealed; a constant-volume injection valve having a valve mechanism including a stem, a stem rubber, and a spring, and a housing that accommodates the valve mechanism, the constant-volume injection valve being assembled to the opening of the pressure-resistant container; an injection button provided with an injection port connected to the metered injection valve; An aerosol for controlling crawling pests and mites, comprising: The kinematic viscosity of the aerosol concentrate 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, The aerosol for controlling crawling pests and mites is set so that the spray force is 3 to 50 gf at a point 5 cm away from the spray nozzle. (2) The aerosol for controlling crawling pests and mites according to (1), wherein the material of the stem rubber is acrylonitrile butadiene rubber. (3) The aerosol for controlling crawling pests and mites according to (1) or (2), wherein the spring has a spring constant of 2.0 N / mm or more. (4) An aerosol for controlling crawling pests and mites according to any one of (1) to (3), wherein 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. (5) The aerosol for controlling crawling pests and mites according to any one of (1) to (4), wherein the volume ratio (a / b) of the aerosol concentrate (a) to the propellant (b) is 2 / 98 to 55 / 45. (6) The aerosol for controlling crawling pests and mites according to any one of (1) to (5), wherein the crawling pest and mite control component is one or more selected from the group consisting of transfluthrin, metofluthrin, fenothrin, permethrin, cyphenothrin, cyfluthrin, tralomethrin, deltamethrin, cypermethrin, benzyl salicylate, and benzyl benzoate. (7) The aerosol for controlling crawling pests and mites according to any one of (1) to (6), wherein the crawling pests and mites are one or more species selected from the group consisting of cockroaches, bedbugs, and house dust mites. (8) A method for controlling creeping pests and mites, which comprises spraying the aerosol concentrate into a treatment space using the aerosol for controlling creeping pests and mites according to any one of (1) to (7), thereby knocking down or killing the creeping pests. (9) A method for controlling creeping pests and mites, comprising spraying the aerosol concentrate into a treatment space using the aerosol for controlling creeping pests and mites according to any one of (1) to (8), thereby repelling creeping pests or mites. [Effects 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 are highly practical because, even when the aerosol for controlling crawling pests and mites equipped with a metered dose injection valve is used repeatedly, it maintains the operational stability of the metered dose injection valve and can exert excellent control effects against cockroaches, bedbugs, and house dust mites, among other crawling pests and house dust mites. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a cross-sectional view of a metered dose injection valve provided in an aerosol spray for controlling crawling insects and mites according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] The aerosol for controlling crawling pests and mites of the present invention comprises a pressure-resistant container in which an aerosol concentrate containing a crawling pest and mite control ingredient and an organic solvent, and a propellant are sealed, a metered-volume spray valve attached to the mouth of the pressure-resistant container, and a spray button with a spray nozzle connected to the metered-volume spray valve. The aerosol for controlling crawling pests and mites of the present invention will be described below. However, the present invention is not intended to be limited to the configurations described in the embodiments, drawings, and examples below. In this specification, when a range is indicated by "~," it is intended to include both the upper and lower limits.

[0016] <Concentrated aerosol> [Crawling insect and mite control ingredients] The main components of the aerosol concentrate that control crawling pests and mites include pyrethroid compounds such as transfluthrin, metofluthrin, profluthrin, fenothrin, cyphenothrin, permethrin, cyfluthrin, bifenthrin, fenpropathrin, tralomethrin, etofenprox, mepafluthrin, empenthrin, dimefluthrin, momfluorothrin, heptafluthrin, phthalthrin, resmethrin, allethrin, prallethrin, furamethrin, deltamethrin, cypermethrin, and imiprothrin, and silafuru. Examples include silicon-based compounds such as isofen, organophosphorus compounds such as dichlorvos and fenitrothion, carbamate compounds such as propoxur and 3-iodo-2-propynyl butylcarbamate, neonicotinoid compounds such as dinotefuran, imidacloprid, and clothianidin, fipronil, indoxacarb, fluxamethamide, brofuranilide, methoxadiazone, methyl 5-chloro-2-trifluoromethanesulfonamidobenzoate (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, momfluorothrin, heptafluthrin, and mepafluthrin; pyrethroid compounds having a phenoxybenzyl structure, such as fenothrin, cyphenothrin, permethrin, cyfluthrin, fenpropathrin, tralomethrin, etofenprox, deltamethrin, and cypermethrin; and compounds having a benzyl ester structure, such as imiprothrin, methoxadiazone, benzyl salicylate, and benzyl benzoate, are preferred, with transfluthrin, metofluthrin, fenothrin, permethrin, cyphenothrin, cyfluthrin, tralomethrin, deltamethrin, cypermethrin, imiprothrin, methoxadiazone, benzyl salicylate, and benzyl benzoate being more preferred. In addition, when optical isomers or geometric isomers based on asymmetric carbons exist in the acid component or alcohol moiety of the pyrethroid compound, it goes without saying that each of these isomers and any mixture thereof are also encompassed in the present invention.

[0017] The content of the crawling pest and mite control ingredient in the aerosol concentrate is not particularly limited, but is preferably adjusted to 1.0 to 80.0 wt %, more preferably 5.0 to 75.0 wt %, and even more preferably 10.0 to 70.0 wt %, taking into consideration that it will be sprayed into the treatment space. Within these ranges, the crawling pest and mite control ingredient is easily dissolved in the organic solvent, and when the aerosol concentrate is sprayed, spray particles are formed in an optimal state, allowing the crawling pest and mite control ingredient to exert its effect.

[0018] [Organic solvents] The main components of the aerosol concentrate include the crawling insect and mite control ingredients, as well as an organic solvent. Examples of such organic solvents include lower alcohols having 2 to 3 carbon atoms, such as ethanol, normal propanol, and isopropanol (IPA), hydrocarbon solvents such as normal paraffin and isoparaffin, higher fatty acid esters having 16 to 20 carbon atoms, such as isopropyl myristate (IPM) and hexyl laurate, and glycol ether solvents having 3 to 10 carbon atoms. Among these, 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 are preferred, with lower alcohols and / or hydrocarbon solvents having 2 to 3 carbon atoms being more preferred, lower alcohols having 2 to 3 carbon atoms being even more preferred, and ethanol being particularly preferred.

[0019] [Other ingredients] In addition to the above components, the aerosol for controlling crawling pests and mites of the present invention can also contain a nonionic surfactant as a solubilizing aid in 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 styrenated phenol, and polyalkalolamides of fatty acids. Of these, ethers are preferably used.

[0020] In addition, antifungal agents, antibacterial agents, disinfectants, fragrances, deodorizers, stabilizers, antistatic agents, antifoaming agents, excipients, synergists, etc., which are targeted at molds, fungi, etc., can also be appropriately blended. Examples of antifungal agents, antibacterial agents, and disinfectants include hinokitiol, 2-mercaptobenzothiazole, 2-(4-thiazolyl)benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, triforine, 3-methyl-4-isopropylphenol, and ortho-phenylphenol. Fragrances include 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 aubergine oil. Cucumis oil, ocotia oil, patchouli oil, tonka bean tincture, turpentine oil, wanilla 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, cypress oil, vetiver oil, bergamot oil, ylang-ylang oil, grapefruit oil, aldehydes with 6 to 12 carbon atoms (e.g., heptagonist, arginine ... xylaldehyde, octanal, nonanal, undecylaldehyde, undecanal, decylaldehyde, etc.), anisaldehyde, cuminaldehyde, acetaldehyde phenylethyl propyl acetal, acetophenone, acetylcedrene, adoxal, allyl amyl glycolate, allyl cyclohexane propionate, damascone, α-damascone, β-damascone, ambrettelid, ambroxan, amyl cinna Cinnamic aldehyde, amyl cinnamic aldehyde dimethyl acetal, amyl valerianate, amyl salicylate, isoamyl acetate, butyl acetate, ethyl butyrate, acetyleugenol, isoamyl salicylate, indole, allyl caproate, ethyl caproate, ethyl propionate, ethyl acetoacetate, thesalon, α-ionone, β-ionone, α-methyl ionone, α-isomethyl ionone,β-Methyl ionone, β-isomethyl ionone, γ-methyl ionone, γ-isomethyl ionone, indene, aurantiol, oakmoss No. 1, oribone, oxyphenylone, caryophyllene, cashmeran, carvone, carone, coumarin, p-cresyl methyl ether, geraniol, geranyl acetate, geranyl formate, geranyl nitrile, tetrahydrogeraniol, tetrahydrogeranyl acetate, coavone, sandalore, sandera, Santalex, santalinol, methyl salicylate, cinnamic alcohol, cinnamic Cinnamic aldehyde, cis-jasmone, citral, citral dimethyl acetal, citrasal, citronellal, citronellol, citronellyl acetate, citronellyl formate, citronellyl nitrile, cyclamen aldehyde, cinnamyl acetate, dihydrojasmone, dimetol, isocyclocitral, jasmal, jasmolactone, jasmophillan, styraryl acetate, styraryl propionate, cedroamber, cedryl acetate, cedrol, celestride, terpineol, α-terpineol, γ-terpineol Lupineol, terpinyl acetate, thymol, delta damascone, delta C6-C13 lactone, tonalid, traseolide, tripral, isononyl acetate, nerol, neryl acetate, neobergamate, nopyr acetate, nopyr 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, fluitate, phenethyl alcohol, phenylethyl phenyl acetate, isobutylquinoline, phenylethyl alcohol, phenylethyl acetate, phenylacetaldehyde dimethyl acetal, benzyl acetate, benzyl alcohol, benzyl salicylate, benzaldehyde, benzyl formate, dimethylbenzyl carbinol, helional,Heliotropin, cis-3-hexenol, cis-3-hexenyl acetate, cis-3-hexenyl salicylate, hexyl cinnamic aldehyde, hexyl salicylate, pentalid, verdox, orthobornyl acetate, isobornyl acetate, isoborneol, borneol, manzanate, mayol, muguet aldehyde, mirac aldehyde, myrcenol, dihydromyrcenol, dimyrcetol, mugol, musk TM-II, musk 781, musk C14, musk T, musk ketone, musk tibetine, musk moth Skene, Menthanyl Acetate, Menthonate, Methyl Anthranilate, Methyl Eugenol, Menthol, Methyl Phenyl Acetate, Eugenol, Isoeugenol, Methyl Isoeugenol, γ-C6-13 Lactones (e.g., γ-Nonalactone, γ-Decalactone, γ-Undecalactone, etc.), Lime Oxide, Methyl Lavender Ketone, Dihydrolinalool, Ligustral, Limonene, Linalool, Linalool Oxide, Tetrahydrolinalool, Ethyl Linalool, Tetrahydrolinalyl Acetate, Linalyl Acetate, Ethyl Citrus lily acetate, lyral, rubafuran, rosephenone, rose oxide, benzoin, balsam of Peru, tolu balsam, tuberose oil, musk tincture, castoreum tincture, civet tincture, ambergris tincture, dihydroterpinyl acetate, 1,8-cineole, 7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene, 4-acetoxy-3-amyltetrahydropyran, tricyclodecenyl acetate, β-naphthyl methyl ester, benzophenone, benzylbenzo Etate, dimethylheptanol, myrac aldehyde, cumin alcohol, menthone, thiomenthone, cyclohexysalicylate, Santalina alcohol, vanillin, ethyl vanillin, isolongifolanon, 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, methyl dihydrojasmonate, undecalactone gamma,Cyclogalbanum, 1-hexanol, cis-3-hexyl acetate, 1,4-cineole, α-terpinene, p-cymene, cis-ocimene, cis-β-ocimene, rimetol, trans-β-ocimene, terpinolene, allyl 2-pentyloxyglycolate, 2-n-pentylcyclopentanone, benzyl butyrate, ethyl acetate, ethyl caproate, isoamyl butyrate, allyl hexanoate, allyl heptanoate, allyl octanoate, allyl isobutyloxacetate, allyl n-amyloxyacetate, allyl cyclohexyl acetate, allyl cyclohexylpropionate, allyl cyclohexyloxyacetate, allyl phenoxyacetate Examples of aromatic components include anisyl acetate, p-menthane-3,8-diol, 6-acetyl-1,1,2,4,4,7-hexamethyltetralin, cinnamyl formate, pulegone, galaxolide, camphor, neral, perillaldehyde, indole aroma, dihydroterpinyl acetate, γ-terpinene, ethyl phenylacetate, methylheptenone, prenyl acetate, p-cymene, β-naphthyl methyl ether, hexyl acetate, ethyl 2-methylpentanoate, 1-hexanol, maltol, allyl cyclohexanepropionate, and α,3,3-trimethylcyclohexanemethanol formate, as well as fragrance components containing leaf alcohol and leaf aldehyde, known for their "green scent." Synergists include piperonyl butoxide and octyl bicycloheptene dicarboximide.

[0021] <Kinematic viscosity> The aerosol concentrate of the aerosol for controlling crawling pests and mites of the present invention is adjusted to have a kinematic viscosity at 20°C of 2.0 to 20.0 cSt, more preferably 3.0 to 15.0 cSt, and even more preferably 3.5 to 10.0 cSt. Adjusting the kinematic viscosity at 20°C to 2.0 to 20.0 cSt further improves the operational stability of the metered dose valve after repeated use of the aerosol for controlling crawling pests and mites, while providing excellent control effects against cockroaches, bedbugs, and house dust mites, among other crawling pests and house dust mites. Such kinematic viscosity can be calculated using the following formula (I): (Kinematic viscosity of the aerosol concentrate at 20°C [cSt]) = (Viscosity of the aerosol concentrate at 20°C [mPa·s]) ÷ (Specific gravity of the aerosol concentrate at 20°C [g / ml]) (I) Here, the viscosity of the aerosol concentrate η 20 can be measured using a viscometer. In this embodiment, the aerosol concentrate placed in a beaker was adjusted to 20°C in a thermostatic water bath (manufactured by IWAKI), and a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd., rotor No. 1) was used to measure the viscosity at each temperature (measurement conditions: 60 rpm, 30 seconds). The specific gravity of the aerosol concentrate at 20°C can be calculated based on the specific gravities (20°C) of the crawling pests, mite control components, and organic solvents exemplified below, taking into account the blending ratios, etc. Transfluthrin 1.51 Metofluthrin 1.28 Profluthrin 1.28 Fenothrin 1.06 Permethrin 1.20 Empenthrine 0.93 Ethanol 0.79 Isopropanol 0.79 Neothiosol 0.76 Isopropyl myristate 0.86 Methyl isobutyl ketone 0.80 Phenylglycol 1.11

[0022] <Propellant> Propellants used in the aerosol for controlling crawling pests and mites of the present invention include liquefied gases such as liquefied petroleum gases (LPG) (e.g., propane, normal butane, isobutane), hydrofluoroolefins (e.g., dimethyl ether (DME) and HFO1234ze), and compressed gases (e.g., nitrogen gas, carbon dioxide, nitrous oxide, and compressed air). While the above propellants can be used alone or in a mixture, propellants primarily containing liquefied petroleum gas (LPG) or dimethyl ether (DME) are easy to use. It is preferable to adjust the gauge pressure (20°C) of the propellant to 0.1 to 0.7 MPa before use.

[0023] The aerosol for controlling crawling pests and mites of the present invention is prepared so that the volume ratio (a / b) of the aerosol concentrate (a) to the propellant (b) is 2 / 98 to 60 / 40, preferably 5 / 95 to 55 / 45, and more preferably 10 / 90 to 50 / 50. When the volume ratio (a / b) is within the above range, a sufficient amount of the crawling pest and mite control component can be uniformly dispersed over the entire floor surface.

[0024] <Aerosol for controlling creeping pests and mites> The aerosol for controlling crawling pests and mites according to the present invention is primarily composed of a pressure-resistant container (aerosol container), a metered-dose spray valve, and a spray button. As described above, the crawling pest and mite control ingredients, organic solvent, propellant, and other optional ingredients are selected and sealed in a pressure-resistant container with a metered-dose spray valve attached to its opening, and the aerosol product is completed by connecting a spray button with a spray nozzle to the metered-dose spray valve. This aerosol product is the aerosol for controlling crawling pests and mites according to the present invention, and is sprayed as spray particles into the treatment space. In this specification, the term "control effect" refers to the control effect based on the knockdown effect and lethal effect, as well as the repellent effect. Even if the control effect is low, sufficient repellent effect can often achieve practical control in many situations.

[0025] <Fixed-volume injection valve> FIG. 1 is a cross-sectional view of an example of a metered-dose spray valve 100 included in an aerosol for controlling crawling insects and mites according to the present invention. The metered-dose spray valve 100 is fixed to the opening of a pressure-resistant container and connected to a spray button. The spray button is an actuator for spraying the aerosol concentrate, and this spray button is provided with a spray nozzle through which the aerosol concentrate is sprayed from the aerosol container to the outside (treatment 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 accommodates 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 particularly preferably a spring with a spring constant of 4.0 N / mm or more. The upper limit of the spring constant of the spring 13 is not particularly limited, but is preferably 6.0 N / mm or less, and more preferably 5.0 N / mm or less. Furthermore, the stem rubber 12 is preferably made of a material containing acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, preferably acrylonitrile butadiene rubber or isobutylene isoprene rubber, and more preferably acrylonitrile butadiene rubber. In the aerosol for controlling crawling pests and mites of the present invention, the aerosol concentrate containing crawling pest and mite control ingredients and an organic solvent may affect the operational stability of the metered dose valve after repeated use. One possible way to improve the operational stability of the metered dose valve after repeated use is to modify the stem rubber material, but there are many factors to consider when verifying the compatibility of the aerosol concentrate with the stem rubber. Taking this into consideration, we focused on modifying the material of the stem rubber and discovered that the operational stability of the metered injection valve can be improved by using a stem rubber material containing acrylonitrile butadiene rubber and / or isobutylene isoprene rubber, preferably acrylonitrile butadiene rubber or isobutylene isoprene rubber, and more preferably acrylonitrile butadiene rubber, and thus completed the present invention.The spring may have a spring constant of 2.0 N / mm or more, preferably 3.0 N / mm or more, more preferably 3.3 N / mm or more, particularly preferably 3.7 N / mm or more, and particularly preferably 4.0 N / mm or more. There is no upper limit to the spring constant of the spring, 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 formula (1): Spring constant (N / mm) = (modulus of transverse elasticity × fourth power of wire diameter) / (8 × number of effective coils × cube of central diameter) (1) Examples of springs with a spring constant of 2.0 N / mm or more include a spring 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 a spring 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 metered injection valve 100, a predetermined amount of aerosol concentrate is introduced from a pressure-resistant container into metered injection chamber 21, and when the spray button for the aerosol for controlling crawling pests and mites is pressed once, metered injection valve 100 is actuated by the pressure of the propellant, and the aerosol concentrate in metered injection chamber 21 rises to the spray nozzle and is 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 0.2 to 1.0 mL, and more preferably 0.2 to 0.9 mL. According to the aerosol for controlling crawling pests and mites of the present invention, the 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, works in cooperation with the spring to improve the operational stability of the metered injection valve and further stabilize the injection volume of the aerosol concentrate. If the injection volume of the aerosol concentrate is within the above range, the amount of the released crawling pest and mites control component can be, for example, 0.1 to 50 mg / m by spraying the aerosol for controlling crawling pests and mites once or several times. 3 The degree of insecticidal activity becomes appropriate, and a practically sufficient control effect against crawling pests and house dust mites can be obtained in the treated space.

[0027] <Injection port> The number, shape, and size of the nozzles of the aerosol for controlling crawling insect pests 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 production, the number of nozzles is preferably one. 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 mm 2 It is preferable that the thickness is 0.1 to 4.0 mm. 2 More preferably, it is 0.2 to 3.0 mm 2For example, when there is one injection port and the shape of the injection port is circular, the size of the injection port (injection port diameter) is preferably 0.3 mm or more, more preferably 0.4 mm or more, and even more preferably 0.6 mm or more. The injection port diameter is preferably 3.0 mm or less, more preferably 2.0 mm or less, and even more preferably 1.8 mm or less.

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

[0029] <Pressure-resistant vessel> Furthermore, the pressure-resistant container of the aerosol for controlling crawling pests and mites of the present invention is not particularly limited, and examples of the material include metals such as aluminum and tinplate, synthetic resins such as polyethylene terephthalate, and pressure-resistant glass. The shape of the pressure-resistant container may be a normal cylindrical can or a modified can. When the material of the pressure-resistant container is synthetic resin or pressure-resistant glass, it may be translucent or transparent.

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

[0031] The aerosol for controlling crawling insects and mites of the present invention is sprayed into the air in an indoor space, and the amount of crawling insect and mite control component released into the air is 0.1 to 50 mg / m 3 It is preferable to set the concentration so that it is 0.5 to 50 mg / m 3It is more preferable that the amount of the crawling insect and mite control ingredient released into the air in an indoor space is set to 0.1 to 50 mg / m 3 When the aerosol concentrate is sprayed so that the weight of the crawling pest and mite control component is dispersed and adheres to the entire floor surface of the indoor space within one hour after spraying, it is preferable that the weight of the crawling pest and mite control component is dispersed and adheres to the entire floor surface of the indoor space within one hour after spraying, it is more preferable that the weight of the crawling pest and mite control component is dispersed and adheres to the entire floor surface of the indoor space within one hour after spraying, and it is even more preferable that the weight of the crawling pest and mite control component is dispersed and adheres to the entire floor surface of the indoor space within one hour after spraying. Here, the crawling pest and mite control component "disperses and adheres to the entire floor surface of the indoor space" means that the adhered crawling pest and mite control component is in a state where the floor surface can exert a crawling pest and mite control effect, but it is not necessarily required that the crawling pest and mite control component is physically adhered to the entire floor surface. Preferably, 30% or more of the crawling pest and mite control component by weight is dispersed and adheres 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 component by weight is dispersed and adheres 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 component by weight is dispersed and adheres to the entire floor surface of the indoor space within 1 hour after spraying, thereby making the crawling pest control aerosol of the present invention highly effective in controlling crawling pests and mites that roam the floor, and particularly excellent in knockdown, lethal effect, or repellent effect. The volume of the indoor space to be treated is not particularly limited, but a volume equivalent to a room of 4.5 to 8 tatami mats (approximately 18.8 to 33.3 m) is suitable. 3 (Area 7.5~13.3m 2 However, even in indoor spaces with larger or smaller volumes, the amount of crawling insect and mite control ingredients released into the air in the indoor space must be 0.1 to 50 mg / m² depending on the volume of the indoor space. 3By appropriately setting the number of sprays, spray volume, etc. so that the spray amount is within the above range, a similar crawling pest and mite control effect can be obtained regardless of the volume of the indoor space. The frequency of use of the aerosol for controlling crawling pests and mites of the present invention is preferably applied at an appropriate time depending on the frequency and situation of pest occurrence, so that the amount of crawling pest and mite control component released is within the above range. Furthermore, from the viewpoint of effectively controlling crawling pests and indoor dust mites, the aerosol for controlling crawling pests and mites of the present invention is preferably designed to perform a so-called spatial treatment, in which spray treatment is directed into the air in indoor spaces, as described above, but may also be designed to perform a so-called direct hit treatment, in which spray treatment is performed directly on target pests or mites. It may also be designed to perform a local surface treatment in gaps, etc., in which so-called gap treatment is performed.

[0032] <Injection power> The spray force of the aerosol spray for controlling crawling pests and mites of the present invention is preferably set to 3 to 50 gf, more preferably 5 to 40 gf, and even more preferably 10 to 35 gf, at a distance of 5 cm from the nozzle. If the spray force is 3 to 50 gf, most of the crawling pest and mite control ingredients will quickly settle and adhere to the entire floor surface of the indoor treatment space, providing practically sufficient control effects against crawling pests and indoor dust mites. If the spray force is less than 3 gf, the spray force may be insufficient, resulting in insufficient diffusion of the spray particles onto the floor surface. On the other hand, even if the spray force exceeds 50 gf, good diffusion may not be achieved. Such spray force can be appropriately adjusted by adjusting 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 aerosol for controlling crawling pests and mites of the present invention is effective against cockroaches such as the American cockroach, the Siberian cockroach, and the German cockroach, bedbugs such as the bedbug (cimex), the Taiwanese bedbug (Nettite cimex), stink bugs such as the brown marmorated stink bug, ants such as the Japanese wood ant, the reticulated ant, the brown ant, the house ant, the red fire ant, and the fire ant, spiders such as the huntsman spider, the spotted house spider, and the redback spider, millipedes, centipedes such as the Japanese stag beetle, pill bugs, woodlouse, Coptotermes formosanus, and Reticulitermes speratus. In addition to crawling pests such as termites and caterpillars, it can also be used to control various pests such as mosquitoes such as Culex pipiens, Aedes albopictus, Aedes aegypti, and Culex pipiens; flies such as house flies and flesh flies; flying pests such as small flies, moths, chironomids, wasps, and moths; clothing pests such as dermestid beetles and small dermestid beetles; grain storage pests such as maize weevils; and indoor dust mites such as flour mites, house dust mites, dust mites, chigger mites, and Dermatophagoides pteronyssinus. It is particularly effective for controlling crawling pests such as cockroaches, including the American cockroach, the Smoky brown cockroach, and the German cockroach; bedbugs, including bedbugs (cimex lectularius) and the Taiwanese bedbug (Nettite cimex); ants, including Japanese wood ants, reticulated ants, brown ants, house ants, red fire ants, and fire ants; spiders, including huntsman spiders, spotted house spiders, and redback spiders; and indoor dust mites, including flour mites, house dust mites, chigger mites, and Dermatophagoides pteronyssinus. It is particularly effective in controlling the German cockroach, the American cockroach, the Smoky brown cockroach, bedbugs (cimex lectularius), flour mites, house dust mites, chigger mites, and Dermatophagoides pteronyssinus.

[0034] <Crawling insect and mite control methods> The method for controlling crawling pests and mites of the present invention is carried out using the above-mentioned aerosol for controlling crawling pests and mites. First, in a pressure-resistant container equipped with a metered-dose spray valve containing an aerosol concentrate containing a crawling pest and mite control ingredient and an organic solvent, and a propellant, pressing a spray button equipped with a spray nozzle connected to the metered-dose spray valve once causes the aerosol concentrate to be sprayed as spray particles from the spray nozzle into the treatment space, and most of the crawling pest and mite control ingredient quickly settles and adheres to the entire floor surface of the indoor treatment space, knocking down, killing, or repelling crawling pests and house dust mites wandering on the floor surface. [Example]

[0035] [Test Example 1] In order to confirm the operational stability of the metered dose valve and the crawling pest and mite control effect of the aerosol for controlling crawling pests and mites of the present invention after repeated use, aerosols for controlling crawling pests and mites having the characteristic configuration of the present invention (Examples 1 to 13) were prepared and tested. For comparison, aerosols for controlling crawling pests and mites not having the characteristic configuration of the present invention (Comparative Examples 1 and 2) were prepared and tested in the same manner.

[0036] For Examples 1 to 13, aerosols for controlling crawling pests and mites were prepared with the compositions and conditions shown in Table 1, and the tests shown below were carried out. For Comparative Examples 1 and 2, aerosols for controlling crawling pests and mites were also prepared with the compositions and conditions shown in Table 1, and the same tests as in the Examples were carried out. In all of the aerosols for controlling crawling pests and mites, acrylonitrile butadiene rubber was used as the material for the stem rubber of the metered injection valve. In addition, for the spring in the aerosol for controlling crawling pests of Example 13, spring A ("A" in Table 1, wire diameter 0.55 mm, modulus of transverse elasticity 6.85 x 10 4 , central diameter 3.15 mm, number of effective turns 7.75, spring constant 3.24 N / mm) was used in the aerosols for controlling creeping pests of Examples 1 to 12 and Comparative Examples 1 and 2. Spring B ("B" in Table 1, wire diameter 0.6 mm, modulus of transverse elasticity 6.85 × 10 4 , central diameter 3.2 mm, effective number of coils 8, spring constant 4.23 N / mm) was used.

[0037] [Table 1]

[0038] (1) Stability of the metered injection valve after repeated use The test aerosols for controlling crawling insects and mites were used repeatedly to check the return state of the spray button, 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 remains in its original position even after 20 or more uses. B: No change in the return state of the spray button after 18 to 19 uses C: The spray button returns poorly after 3 to 17 uses. D: The spray button returns very poorly after 1-2 uses

[0039] (2) Effectiveness against cockroaches A total of four 20 x 20 cm glass plates (for American cockroaches) are enclosed to create a volume of 25 m 3 room (equivalent to a 6-tatami room, area 10m 2 ) were placed at the four corners of a room. A plastic ring approximately 20 cm in diameter coated with Vaseline was placed on each glass plate to prevent escape, and a designated test insect (American cockroach: five larvae) was released into each ring and allowed to roam freely. In Example 4, 0.4 mL of the test aerosol was sprayed four times in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed one time in the center of the room (1.5 m above the floor), changing 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 in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed four times in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. After spraying, the test insects were left to stand for 30 minutes to expose to the agent, and the number of test insects that turned over over time was counted, and the KT50 After 30 minutes had passed since spraying, the glass plate was moved to another room along with the ring containing the test insects, and they were given food. After 24 hours, the mortality rate of the test insects was calculated. 50 Values ​​were indicated as "A" for 11.0 minutes or less, "B" for 11.1-18.0 minutes, "C" for 18.1-30.0 minutes, and "D" for estimated 30.1 minutes or more. Mortality rates for American cockroaches were indicated as "A" for 90-100%, "B" for 75-85%, "C" for 50-70%, and "D" for less than 50%.

[0040] (3) Effectiveness against bedbugs A total of four 20x20cm glass panels are enclosed, with a volume of 25m 3 room (equivalent to a 6-tatami room, area 10m 2 ) were placed at the four corners of a room. A plastic ring approximately 10 cm in diameter coated with Vaseline to prevent escape was placed on each glass plate, and a designated test insect (five bed bugs) was released into each ring and allowed to roam freely. In Example 4, 0.4 mL of the test aerosol was sprayed four times in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed one time in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 1, 2, 5, 6, 8, 10, and 11, and Comparative Examples 1 and 2, 0.2 mL of the test aerosol was sprayed six times in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed four times in the center of the room (1.5 m above the floor), with the direction slightly shifting upward. After 30 minutes of spraying, the test insects were exposed to the agent. The glass plate and the ring containing the test insects were then 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 by "A" if it was 90-100%, "B" if it was 75-85%, "C" if it was 50-70%, and "D" if it was less than 50%.

[0041] (4) The adhesion rate and uniformity of the crawling insect and mite control ingredients on the floor Volume 25m 3 room (equivalent to a 6-tatami room, area 10m 2 20 × 20 cm glass plates were placed at 6 to 8 locations on the floor of a room. In Example 4, 0.4 mL of the test aerosol was sprayed in four shots at the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 3, 12, and 13, 1.0 mL of the test aerosol was sprayed in one shot at a slightly diagonal upward direction toward the center of the room (1.5 m above the floor). In Examples 1, 2, 5, 6, 8, 10, and 11, and Comparative Examples 1 and 2, 0.2 mL of the test aerosol was sprayed in six shots at the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. In Examples 7 and 9, 1.0 mL of the test aerosol was sprayed in four shots at the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. One hour after spraying, all glass plates were removed, and the adhered insecticides for crawling pests and mites were washed with acetone and quantitatively analyzed by gas chromatography. Based on the analytical values ​​obtained, the ratio of the amount of insecticides for crawling pests and mites that had settled and adhered to the floor surface within one hour of spraying (calculated as total amount of insecticides for crawling pests and mites adhered to the glass plates × (room area) / (total area of ​​glass plates)) to the theoretical total amount of insecticides for crawling pests and mites sprayed (which corresponds to the spray amount of insecticides for crawling pests and mites multiplied by the volume in Table 1) was calculated (floor adhesion rate). The dispersion of insecticides for crawling pests and mites among the glass plates was also analyzed to evaluate the uniformity of dispersion. The results were graded "A," "B," "C," and "D," in order of best to worst.

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

[0043] [Table 2]

[0044] As a result of the test, the aerosols for controlling crawling pests and mites of Examples 1 to 13 have a high lethal effect with a lethal rate of 80% or more against crawling pests such as cockroaches and bedbugs, and 50 It was confirmed that the aerosols for controlling crawling pests and mites of Examples 1 to 13 not only had a floor adhesion rate of 50% or more one hour after spraying, but also that the crawling pest and mite control ingredient was spread and adhered almost uniformly across the entire floor surface. The aerosols for controlling pests of Examples 1 to 13 had appropriately adjusted kinematic viscosities of the aerosol concentrates at 20°C and spray force at a distance of 5 cm from the spray nozzle, so the crawling pest and mite control ingredient was spread and adhered evenly across the entire floor surface, and as a result, it is believed that the crawling pest and mite control ingredient efficiently came into contact with the crawling pests at any position on the floor surface.

[0045] On the other hand, in Comparative Example 1, in which an aerosol concentrate having a kinematic viscosity of less than 2.0 cSt at 20°C was used, the kinematic viscosity of the aerosol concentrate at 20°C was low, so the adhesion of the crawling pest and mite control ingredient to the floor surface was slightly reduced, and sufficient lethal effects and knockdown effects against crawling pests such as cockroaches and bedbugs were not obtained. Also, when an aerosol concentrate having a kinematic viscosity of more than 20.0 cSt at 20°C was used as in Comparative Example 4, the kinematic viscosity of the aerosol concentrate at 20°C was high, so the crawling pest and mite control ingredient was not dispersed uniformly on the floor surface, and the lethal effects and knockdown effects against crawling pests such as cockroaches and bedbugs were insufficient.

[0046] In Examples 1 to 13, in which spring A with a spring constant of 2.0 N / mm or more was used in the metered injection valve, the return state of the injection button remained unchanged even after 18 or more uses, demonstrating good performance. In particular, in Examples 1 to 12, in which spring B with a spring constant of 3.3 N / mm or more was used in the metered injection valve, the return state of the injection button remained unchanged even after 20 or more uses, demonstrating particularly good operational stability of the metered injection valve after repeated use. On the other hand, when an aerosol concentrate with a kinematic viscosity of less than 2.0 cSt at 20°C was used, as in Comparative Example 1, the return state of the injection button deteriorated significantly after one or two uses, potentially leading to poor injection. This is thought to be due to the aerosol concentrate with a kinematic viscosity of less than 2.0 cSt at 20°C degrading the acrylonitrile butadiene rubber and reducing the elasticity of the stem rubber. Thus, the compatibility of the stem rubber material with the aerosol concentrate is an extremely important consideration, and it was found that if the aerosol concentrate has an adverse effect on acrylonitrile butadiene rubber, the operational stability of the metered dose injection valve after repeated use cannot be improved. Furthermore, when an aerosol concentrate with a kinematic viscosity of more than 20.0 cSt at 20°C was used, as in Comparative Example 2, the return state of the injection button deteriorated after 3 to 17 uses, and the operational stability of the metered dose injection valve after repeated use could not be said to be particularly good.

[0047] [Test Example 2] An aerosol concentrate was prepared by dissolving benzyl salicylate (2.0 w / v%), a crawling pest and mite control ingredient, in isopropyl myristate, a solvent. The aerosol concentrate had a kinematic viscosity of 9.4 cSt at 20°C. 9 mL of aerosol concentrate (a) and 21 mL of liquefied petroleum gas (b), which is the propellant, were pressurized and filled into an aerosol container (pressure-resistant container) with a 0.2 mL metered-volume spray valve so that the volume ratio (a) / (b) of the aerosol concentrate (a) to the propellant liquefied petroleum gas (b) was 30 / 70, thereby obtaining the aerosol for controlling crawling pests and mites of Example 14. This aerosol for controlling crawling pests and mites used acrylonitrile butadiene rubber for the stem rubber of the metered-volume spray valve and Spring B (wire diameter 0.6 mm, modulus of transverse elasticity 6.85 x 104 The spray force was 6 gf at a spray distance of 5 cm. The obtained aerosol for controlling crawling pests and mites was used to check the operational stability of the metered dose spray valve after repeated use, and there was no change in the return state of the spray button even after more than 20 uses.

[0048] (5) Repellent effect against indoor dust mites Eight waist-high petri dishes, each 9 cm in diameter and 6 cm in height (four each for Dermatophagoides farinae and Tyrophagus putrescentiae), were placed in a closed 25 m 3 The test was performed by placing cotton cloth of a specified diameter of approximately 4 cm in a waist-high Petri dish. Six shots of 0.2 mL of the aerosol for controlling crawling pests and mites of Example 14 were sprayed in the center of the room (1.5 m above the floor), changing the direction slightly diagonally upward. 24 hours after spraying, the cotton cloth was removed. It was placed in a 4 cm diameter Petri dish, and 50 mg of attractant medium was placed in the center. Separately, approximately 10,000 test house dust mites or Tyrophagus putrescentiae were released into a 9 cm diameter Petri dish together with the medium, and the previously prepared 4 cm diameter Petri dish was placed in the center of this. Similarly, untreated cotton cloth was used as an untreated control. After 24 hours, the number of mites that had invaded the cotton cloth was counted, and the repellency rate was calculated according to the following formula: Repellency rate (%) = [Number of mites invading the untreated area - Number of mites invading the treated area] / Number of mites invading the untreated area x 100

[0049] As a result of the test, when the aerosol for controlling crawling pests and mites of Example 14 was used, an excellent repellency rate of 85% or more was observed against both Dermatophagoides farinae and Tyrophagus putrescentiae.

[0050] [Test Example 3] An aerosol concentrate was prepared by dissolving transfluthrin (40 w / v%), an ingredient for controlling crawling pests and mites, in ethanol, a solvent. 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 0.2 mL metered-volume injection valve so that the volume ratio (a) / (b) of the aerosol concentrate (a) to the propellant dimethyl ether (b) was 30 / 70, thereby obtaining the aerosol for controlling crawling pests and mites of Example 15. This aerosol for controlling crawling pests and mites used isobutylene isoprene rubber for the stem rubber of the metered-volume injection valve and spring B (wire diameter 0.6 mm, modulus of transverse elasticity 6.85 × 10 4 The spray force was 5 gf at a spray distance of 5 cm. The obtained aerosol for controlling crawling pests and mites was used to check the operational stability of the metered dose spray valve after repeated use, and there was no change in the return state of the spray button even after more than 20 uses. [Industrial Applicability]

[0051] According to the present invention, it is possible to provide an aerosol for controlling crawling pests and mites that has a high control effect against crawling pests and house dust mites, and a method for controlling crawling pests 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 Metered injection valve

Claims

1. a pressure-resistant container in which an aerosol concentrate containing a crawling pest and mite control component and an organic solvent, and a propellant are sealed; a constant-volume injection valve having a valve mechanism including a stem, a stem rubber, and a spring, and a housing that accommodates the valve mechanism, the constant-volume injection valve being assembled to the opening of the pressure-resistant container; an injection button provided with an injection port connected to the metered injection valve; An aerosol for controlling crawling pests and mites, comprising: The crawling insect and mite control component is transfluthrin, The kinematic viscosity of the aerosol concentrate 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, The spray volume of the aerosol concentrate when the spray button is pressed once is adjusted to 0.2 to 0.9 mL, The aerosol for controlling crawling pests and mites is set so that the spray force is 10 to 50 gf at a point 5 cm away from the spray nozzle.

2. 2. The aerosol for controlling crawling insects and mites according to claim 1, which is sprayed into the air in an indoor space.

3. 3. The aerosol spray 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 aerosol for controlling crawling pests and mites according to any one of claims 1 to 3, wherein the organic solvent is a lower alcohol having 2 to 3 carbon atoms and / or a higher fatty acid ester having 16 to 20 carbon atoms (provided that the crawling pest and mite control component has a vapor pressure of 1 x 10 at 30°C). －４ (Except for the case of hardly volatile compounds with a vapor density of less than mmHg).

5. The aerosol for controlling crawling pests and mites according to any one of claims 1 to 4, wherein the volume ratio (a / b) of the aerosol concentrate (a) to the propellant (b) is 2 / 98 to 55 / 45.

6. The aerosol for controlling crawling pests and mites according to any one of claims 1 to 5, wherein the crawling pests and mites are one or more species selected from the group consisting of cockroaches, bedbugs, and house dust mites.

7. When the aerosol concentrate is sprayed into the treatment space, the amount of the crawling pest and mite control component released into the air is 0.1 to 50 mg / m ３ The aerosol for controlling crawling pests and mites according to any one of claims 1 to 6, which is set so as to:

8. 8. The aerosol for controlling crawling pests and mites according to claim 1, wherein the return state of the spray button does not change when the spray button is repeatedly pressed 18 times or more.

9. A method for controlling creeping pests and mites, comprising spraying the aerosol concentrate into a treatment space using the aerosol for controlling creeping pests and mites according to any one of claims 1 to 8, thereby knocking down or killing creeping pests or mites.

10. A method for controlling creeping pests and mites, comprising spraying the aerosol concentrate into a treatment space using the aerosol for controlling creeping pests and mites according to any one of claims 1 to 8, thereby repelling creeping pests or mites.

Images