Spray composition for arthropod control

Abstract

To provide a spray composition for controlling arthropods, which reduces discomfort during use, ensures superior spray uniformity, and enables spraying over a wide area.SOLUTION: A spray composition for controlling arthropods, comprising: component (A): a nonionic surfactant, component (B): a preservative, component (C): a thickening agent, and component (D): water.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a spray composition for controlling arthropods. [Background technology]

[0002] Among arthropods such as insects, flying pests such as mosquitoes and flies transmit pathogens to humans and other animals, causing infectious diseases and dermatitis. In particular, some mosquitoes are extremely harmful insects from a hygienic standpoint, as they transmit pathogens such as dengue fever, Zika fever, yellow fever, encephalitis, and malaria. Additionally, there are also agricultural pests that cause damage to agricultural crops as harmful arthropods.

[0003] Spray-type pesticides are known as pesticides for controlling these pests. For example, Patent Document 1 describes that a spray composition that contains a benzoate ester, a nonionic surfactant, alcohol, and water and forms a homogeneous phase can be sprayed with a uniform composition and is less likely to cause choking on the user. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-94106 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the spray composition disclosed in Patent Document 1 still has room for improvement in terms of good spray characteristics, such as being able to spray the composition evenly and widely to effectively capture and control arthropods, thereby enabling droplets of the composition to reach arthropods appropriately. The present invention relates to the provision of a spray composition for arthropod control that reduces discomfort during use, has excellent spray uniformity, and can be sprayed over a wide area, thereby enabling spray droplets to reach arthropods present over a wide area. [Means for solving the problem]

[0006] The present inventors have discovered that the above problems can be solved by a composition containing a nonionic surfactant, a preservative, a thickener, and water.

[0007] That is, the present invention relates to the following. [1] A spray composition for arthropod control, comprising: component (A): a nonionic surfactant; component (B): a preservative; component (C): a thickener; and component (D): water. [2] A spray for arthropod control, comprising the spray composition according to [1] filled in a spray container or a spray device. [3] A method for controlling arthropods, comprising the step of contacting arthropods with the spray composition of [1]. [4] Use of a composition containing component (A): a nonionic surfactant, component (B): a preservative, component (C): a thickener, and component (D): water as a spray composition for arthropod control. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a spray composition for arthropod control that reduces discomfort during use, has excellent spray uniformity, and can be sprayed over a wide area, thereby allowing spray droplets to reach arthropods present over a wide area appropriately. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram showing a method for evaluating mosquito dropping performance in an example. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Definition] As used herein, the term "arthropod control composition" refers to a composition that can be applied to the body surface of arthropods to reduce their mobility, thereby preventing and reducing damage caused by arthropods. Arthropods will be described later. The term "spray composition" refers to a composition that is filled into a spray container or a spray device to prepare a spray, and then sprayed onto an object. "Discomfort when using the spray composition" refers to the irritation felt by the user in the nose and throat when inhaling the spray composition when spraying it. "Excellent spray uniformity" means that when the spray composition is sprayed toward a vertical wall surface, the spray marks formed on the wall surface are approximately circular and are sprayed evenly without uneven spray or hollow areas. "Able to spray over a wide area" means that when the spray composition is sprayed toward a vertical wall surface from a certain distance, the area of ​​the spray marks formed on the wall surface is large. Furthermore, "allowing spray droplets to reach arthropods appropriately" means allowing spray droplets of the spray composition to efficiently reach arthropods that are targets for control. The reachability of spray droplets to arthropods and the resulting arthropod control effect can be evaluated, for example, by the ability of mosquitoes to fall off when the spray composition is sprayed. The discomfort felt when using the spray composition, the uniformity of spraying, the area sprayed, and the ability to repel mosquitoes can be specifically evaluated by the methods described in the Examples.

[0011] [Spray composition for arthropod control] The arthropod control spray composition of the present invention (hereinafter also referred to simply as the "(spray) composition of the present invention") contains component (A): a nonionic surfactant, component (B): a preservative, component (C): a thickener, and component (D): water. The spray composition of the present invention has the above-mentioned constitution, which can suppress discomfort during use. Furthermore, since the spray composition has excellent spray uniformity and can be sprayed over a wide area, droplets of the composition can be appropriately delivered to arthropods, thereby enabling control of arthropods present over a wide area.

[0012] The reason why the composition of the present invention exhibits the above-mentioned effects is not clear, but is thought to be as follows. The composition of the present invention contains a nonionic surfactant (Component (A)) as an active ingredient for arthropod control. Furthermore, since the composition of the present invention further contains water (Component (D)) as a solvent for component (A), the composition also contains a preservative (Component (B)) from the viewpoint of improving the storage stability of the aqueous composition. However, the present inventors have found that when a composition containing both component (A) and component (B) is sprayed, the user inhales it and experiences irritation in the nose and throat. One possible reason for this is thought to be that component (A), the active ingredient for arthropod control, reduces the surface tension of the composition. Specifically, when a low-surface-tension spray composition is discharged from the nozzle of a spray container or spray device, a swirling flow is generated near the nozzle, which is thought to break the mist into smaller particles. The more the mist is broken up, the more easily it diffuses, and because the mist contains component (B), it is thought that users who inhale the mist experience discomfort.

[0013] Here, the spray composition of the present invention contains a thickener as component (C). It is believed that the inclusion of a thickener in the composition improves the viscosity of the composition, controls the size of the spray droplets, and prevents excessive fragmentation and diffusion of the mist near the nozzle of the spray container or spray device. Since the spray droplets of a spray composition containing component (C) are larger than those not containing component (C), the spray droplets are less likely to diffuse during spraying, and a higher proportion of them are sprayed straight from the nozzle, achieving good spray uniformity while maintaining a certain degree of spray range. It is believed that this results in good reach of the spray droplets to arthropods.

[0014] The term "arthropods" as used herein primarily refers to arthropods that are harmful to humans, livestock, their living spaces, and agricultural or horticultural plants. Arthropods include insects, crustaceans, spiders, centipedes, etc., and are typically insects.

[0015] Specific examples of arthropods include mosquitoes, black flies, flies, horseflies, midges, bees, cockroaches, ants, pill bugs, spiders, millipedes, centipedes, house centipedes, and Lepidoptera larvae (caterpillars), as well as agricultural pests such as grasshoppers, locusts, planthoppers, moths, stink bugs, thrips, cucumber beetles, and aphids.

[0016] The components contained in the spray composition of the present invention will be described below. <Component (A): Nonionic surfactant> Component (A) acts as an active ingredient for arthropod control. The nonionic surfactant used as component (A) is preferably a nonionic surfactant with low surface tension, from the viewpoint of controlling arthropods by spraying the composition of the present invention. Specifically, component (A) is a nonionic surfactant whose surface tension at 25°C in a 3 mmol / kg aqueous solution is preferably 27 mN / m or more and 50 mN / m or less. The surface tension of a 3 mmol / kg aqueous solution of component (A) at 25°C is preferably 27.5 mN / m or more, more preferably 28 mN / m or more, from the viewpoint of improving spray uniformity and spray area of ​​the composition. Furthermore, from the viewpoint of improving arthropod control, the surface tension is preferably 45 mN / m or less, more preferably 40 mN / m or less, even more preferably 33 mN / m or less, and still more preferably 31 mN / m or less. The surface tension of a 3 mmol / kg aqueous solution of component (A) at 25°C is preferably 27 mN / m or more and 45 mN / m or less, more preferably 27.5 mN / m or more and 40 mN / m or less, even more preferably 28 mN / m or more and 33 mN / m or less, and still more preferably 28 mN / m or more and 31 mN / m or less.

[0017] The surface tension is the value of the surface tension of a 3 mmol / kg aqueous solution of component (A) measured by the Wilhelmy method in an environment of 25°C, and can be measured specifically by the following method: When component (A) consists of two or more components, the surface tension value of component (A) is calculated as a weighted average based on the surface tension value of a 3 mmol / kg aqueous solution of each component, with the blending ratio of each component being used as the weight. [Method for measuring the surface tension of a 3 mmol / kg aqueous solution of component (A) at 25°C] Prepare a 3mmol / kg aqueous solution of component (A) in a 25°C environment, pour it into a glass dish with a diameter of 6.4cm and a depth of 3.8cm, remove any air bubbles on the surface of the water, and then leave it to stand for at least 10 minutes before measuring. For this measurement, a surface tensiometer "K100" (manufactured by KRUSS) is used, and the surface tension is measured 1 minute after immersing a platinum plate 1mm into the aqueous solution.

[0018] Specific examples of nonionic surfactants used as component (A) include polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene sorbitan fatty acid esters, sorbitan fatty acid esters, alkyl glucosides, alkyl glyceryl ethers, polyglycerin fatty acid esters, sucrose fatty acid esters, polyoxyethylene hydrogenated castor oil, alkylamine oxides, and polyoxyalkylene-modified silicones, and one or more of these can be used. Among the above, from the viewpoint of improving arthropod control and improving the spray uniformity and spray area of ​​the composition, component (A) preferably contains one or more members selected from the group consisting of polyoxyalkylene alkyl ethers, alkyl glucosides, and alkyl glyceryl ethers.

[0019] The polyoxyalkylene alkyl ether is preferably a compound represented by the following general formula (1). R 1 -O-(Y) m -H (1) [In formula (1), R 1 represents an alkyl group, Y represents an oxyethylene unit and / or an oxypropylene unit, and m represents the average number of moles of Y added. In general formula (1), R 1From the viewpoint of improving arthropod control and improving spray uniformity and spray area of ​​the composition, the number of carbon atoms in the alkyl group constituting the formula (I) is preferably 8 to 22, more preferably 8 to 18, even more preferably 8 to 16, and still more preferably 8 to 14. The alkyl group may be either a linear alkyl group or a branched alkyl group, but is preferably a linear alkyl group.

[0020] In general formula (1), Y represents an oxyethylene unit and / or an oxypropylene unit, preferably containing an oxyethylene unit, more preferably an oxyethylene unit. m represents the average number of moles of Y added, and is preferably 4 or more, more preferably 5 or more. From the viewpoint of improving arthropod control, m is preferably 30 or less, more preferably 20 or less, even more preferably 15 or less, still more preferably 12 or less, and still more preferably 10 or less.

[0021] The polyoxyalkylene alkyl ether preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ethers and polyoxypropylene alkyl ethers, more preferably comprises polyoxyethylene alkyl ethers, even more preferably comprises one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, and polyoxyethylene 2-hexyldecyl ether, still more preferably comprises polyoxyethylene lauryl ether, still more preferably comprises polyoxyethylene lauryl ether having an average number of moles of oxyethylene units added of 4 to 20, still more preferably 5 to 12.

[0022] The alkyl glucoside preferably includes an alkyl glucoside having an alkyl group having from 8 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, and even more preferably from 8 to 14 carbon atoms. The alkyl group may be either a linear alkyl group or a branched alkyl group. Specific examples of alkyl glucosides include octyl glucoside, 2-ethylhexyl glucoside, nonyl glucoside, decyl glucoside, isodecyl glucoside, lauryl glucoside, tridecyl glucoside, myristyl glucoside, stearyl glucoside, isostearyl glucoside, and mixtures of two or more thereof. Among these, the alkyl glucoside preferably includes one or more selected from the group consisting of decyl glucoside, lauryl glucoside, and myristyl glucoside.

[0023] The alkyl glyceryl ether preferably includes an alkyl glyceryl ether having an alkyl group having from 8 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, and even more preferably from 8 to 14 carbon atoms. The alkyl group may be either a linear alkyl group or a branched alkyl group, but from the viewpoints of improving arthropod control and improving the spray uniformity and spray area of ​​the composition, a branched alkyl group is preferred. Specific examples of alkyl glyceryl ethers include octyl glyceryl ether, 2-ethylhexyl glyceryl ether, nonyl glyceryl ether, decyl glyceryl ether, isodecyl glyceryl ether, lauryl glyceryl ether, tridecyl glyceryl ether, myristyl glyceryl ether, stearyl glyceryl ether, isostearyl glyceryl ether, and mixtures of two or more thereof. Among these, the alkyl glyceryl ether preferably includes one or more selected from the group consisting of 2-ethylhexyl glyceryl ether, decyl glyceryl ether, isodecyl glyceryl ether, and lauryl glyceryl ether, and more preferably includes one or more selected from the group consisting of 2-ethylhexyl glyceryl ether and isodecyl glyceryl ether.

[0024] The nonionic surfactants as component (A) can be used singly or in combination of two or more. Among the above, from the viewpoint of improving arthropod control and improving the spray uniformity and spray area of ​​the composition, component (A) preferably contains one or more selected from the group consisting of polyoxyalkylene alkyl ethers and alkyl glucosides, more preferably contains a polyoxyalkylene alkyl ether, even more preferably contains a polyoxyethylene alkyl ether, still more preferably contains one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, and polyoxyethylene 2-hexyldecyl ether, even more preferably contains polyoxyethylene lauryl ether, still more preferably contains polyoxyethylene lauryl ether having an average added mole number of oxyethylene units of 4 to 20, and even more preferably contains 5 to 12.

[0025] Specific examples of polyoxyalkylene alkyl ethers used as component (A) include polyoxyethylene (6) lauryl ether ("EMULGEN 108" manufactured by Kao Corporation), polyoxyethylene (16) lauryl ether ("EMULGEN 116" manufactured by Kao Corporation), polyoxyethylene (23) lauryl ether ("EMULGEN 123P" manufactured by Kao Corporation), polyoxyethylene (6) stearyl ether ("EMULGEN 306L" manufactured by Kao Corporation), polyoxyethylene (13) oleyl ether ("EMULGEN 420" manufactured by Kao Corporation), polyoxyethylene (20) 2-hexyldecyl ether ("EMULGEN 1620G" manufactured by Kao Corporation), and PPG-3 caprylyl ether ("KAO SOFCARE GP-1" manufactured by Kao Corporation).

[0026] <Component (B): Preservative> The preservative used as component (B) is preferably a preservative that is solid at 25°C, and examples thereof include one or more selected from the group consisting of parabens such as methyl p-hydroxybenzoate (methylparaben), ethyl p-hydroxybenzoate (ethylparaben), propyl p-hydroxybenzoate (propylparaben), and butyl p-hydroxybenzoate (butylparaben); benzoic acid or a derivative thereof such as benzoic acid or a salt thereof; phenoxyethanol; sorbic acid or a salt thereof; benzyl alcohol; polylysine; and protamine sulfate. The salt of benzoic acid or sorbic acid is preferably one or more selected from the group consisting of alkali metal salts, more preferably sodium salts and potassium salts, such as sodium benzoate and potassium sorbate.

[0027] The component (B) can be used alone or in combination of two or more. Among the above, component (B) preferably contains one or more selected from the group consisting of benzoic acid or a derivative thereof, phenoxyethanol, sorbic acid or a salt thereof, and benzyl alcohol, and more preferably contains one or more selected from the group consisting of sodium benzoate and potassium sorbate.

[0028] <Component (C): Thickener> The thickener used as component (C) may be any component capable of increasing the viscosity of an aqueous composition containing water as a solvent, and any known water-soluble polymer known as a thickener may be used. The water-soluble polymers include cationic polymers, anionic polymers, nonionic polymers, and amphoteric or zwitterionic polymers.

[0029] Examples of cationic polymers used as component (C) include hydroxyethyl cellulose having an O-[2-hydroxy-3-(trimethylammonio)propyl] chloride group (polyquaternium-10), vinylpyrrolidone-dimethylaminomethylethyl methacrylate copolymer diethyl sulfate (polyquaternium-11), and methylvinylimidazolium chloride-vinylpyrrolidone copolymer.

[0030] Examples of anionic polymers that can be used as component (C) include carboxyvinyl polymer, carboxymethylcellulose, carrageenan, xanthan gum, polystyrene sulfonate, agar, ghatti gum, karaya gum, pectin, alginate salts, acrylic acid / alkyl methacrylate copolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, polyacrylamide, (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer, (acrylates / C10-C30 alkyl acrylate) crosspolymer, (ammonium acryloyldimethyltaurate / beheneth-25 methacrylate) crosspolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, (acrylamide / ammonium acrylate) copolymer, (sodium acrylate / acryloyldimethyltaurate / dimethylacrylamide) crosspolymer, polyacrylate-13, polyacrylate crosspolymer-6, alkali metal salts of poly(acrylic acid), and hyaluronic acid or its alkali metal salts.

[0031] Examples of nonionic polymers that can be used as component (C) include nonionic cellulose ethers such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxybutyl methyl cellulose, hydroxypropyl methyl cellulose, and ethyl hydroxyethyl cellulose, propylene glycol alginate, poly(ethylene oxide), polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl guar gum, locust bean gum, amylose, hydroxyethyl amylose, starch, and starch derivatives, and mixtures thereof.

[0032] Specific examples of amphoteric or dipolar polymers include octylacrylamide / acrylate / butylaminoethyl methacrylate copolymer, polyquaternium-47, polyquaternium-43, and the like.

[0033] The component (C) can be used alone or in combination of two or more. Among the above, from the viewpoint of improving the spray uniformity and spray area of ​​the composition, component (C) preferably contains one or more selected from the group consisting of anionic polymers and nonionic polymers, more preferably contains one or more selected from the group consisting of carboxyvinyl polymers, carboxymethyl cellulose, carrageenan, xanthan gum, and nonionic cellulose ethers, even more preferably contains one or more selected from the group consisting of carboxyvinyl polymers, carboxymethyl cellulose, and hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methylcellulose, and even more preferably contains hydroxyethyl cellulose.

[0034] <Content> The contents of components (A) to (C) in the spray composition are preferably in the following ranges. From the viewpoint of improving arthropod control efficacy, the content of component (A) in the spray composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, more preferably 0.04% by mass or more, more preferably 0.05% by mass or more, more preferably 0.07% by mass or more, more preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and more preferably 0.3% by mass or more. From the viewpoint of improving spray uniformity and spray area of ​​the composition and reducing discomfort to users, the content is preferably 10% by mass or less, more preferably 8% by mass or less, more preferably 6% by mass or less, more preferably 5% by mass or less, more preferably 3% by mass or less, more preferably 2% by mass or less, more preferably 1.5% by mass or less, more preferably 1.2% by mass or less, more preferably 1% by mass or less, more preferably 0.8% by mass or less, more preferably 0.6% by mass or less, and more preferably 0.5% by mass or less. The content of component (A) in the spray composition is preferably 0.01% by mass or more and 10% by mass or less, even more preferably 0.02% by mass or more and 8% by mass or less, even more preferably 0.04% by mass or more and 6% by mass or less, even more preferably 0.05% by mass or more and 5% by mass or less, even more preferably 0.07% by mass or more and 3% by mass or less, even more preferably 0.1% by mass or more and 2% by mass or less, even more preferably 0.2% by mass or more and 1.5% by mass or less, even more preferably 0.2% by mass or more and 1.2% by mass or less, even more preferably 0.2% by mass or more and 1% by mass or less, even more preferably 0.3% by mass or more and 0.8% by mass or less, even more preferably 0.3% by mass or more and 0.6% by mass or less, and even more preferably 0.3% by mass or more and 0.5% by mass or less.

[0035] From the viewpoints of improving the storage stability of the aqueous composition and improving the arthropod control effect, the content of component (B) in the spray composition is preferably 0.001% by mass or more, more preferably 0.002% by mass or more, even more preferably 0.005% by mass or more, still more preferably 0.008% by mass or more, still more preferably 0.01% by mass or more, still more preferably 0.02% by mass or more, and still more preferably 0.1% by mass or more. From the viewpoint of reducing discomfort to the user, the content is preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less, still more preferably 2% by mass or less, still more preferably 1% by mass or less, still more preferably 0.8% by mass or less, still more preferably 0.5% by mass or less, and still more preferably 0.45% by mass or less. The content of component (B) in the spray composition is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.002% by mass or more and 4% by mass or less, even more preferably 0.005% by mass or more and 3% by mass or less, still more preferably 0.008% by mass or more and 2% by mass or less, even more preferably 0.01% by mass or more and 1% by mass or less, still more preferably 0.02% by mass or more and 0.8% by mass or less, still more preferably 0.1% by mass or more and 0.5% by mass or less, and still more preferably 0.1% by mass or more and 0.45% by mass or less.

[0036] From the viewpoints of reducing discomfort to the user and improving the spray uniformity and spray area of ​​the composition, the content of component (C) in the spray composition is preferably 0.001% by mass or more, more preferably 0.002% by mass or more, even more preferably 0.005% by mass or more, still more preferably 0.008% by mass or more, still more preferably 0.01% by mass or more, and still more preferably 0.015% by mass or more. From the viewpoint of improving the spray uniformity and spray area of ​​the composition, the content is preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less, still more preferably 2% by mass or less, still more preferably 1% by mass or less, still more preferably 0.8% by mass or less, still more preferably 0.5% by mass or less, still more preferably 0.4% by mass or less, still more preferably 0.3% by mass or less, still more preferably 0.15% by mass or less, and still more preferably 0.08% by mass or less. The content of component (C) in the spray composition is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.002% by mass or more and 4% by mass or less, even more preferably 0.005% by mass or more and 3% by mass or less, still more preferably 0.008% by mass or more and 2% by mass or less, still more preferably 0.01% by mass or more and 1% by mass or less, still more preferably 0.01% by mass or more and 0.8% by mass or less, still more preferably 0.01% by mass or more and 0.5% by mass or less, still more preferably 0.01% by mass or more and 0.4% by mass or less, still more preferably 0.015% by mass or more and 0.3% by mass or less, still more preferably 0.015% by mass or more and 0.15% by mass or less, and still more preferably 0.015% by mass or more and 0.08% by mass or less.

[0037] The mass ratio of component (C) to component (B) in the spray composition [(C) / (B)] is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, and still more preferably 0.04 or more, from the viewpoint of improving the spray uniformity and spray area of ​​the composition. Also, from the viewpoint of improving the arthropod control effect, it is preferably 10 or less, more preferably 8 or less, even more preferably 7 or less, still more preferably 5 or less, still more preferably 3 or less, still more preferably 2 or less, still more preferably 1 or less, still more preferably 0.7 or less, still more preferably 0.45 or less, still more preferably 0.3 or less, and still more preferably 0.23 or less. The mass ratio of component (C) to component (B) in the spray composition [(C) / (B)] is preferably 0.01 or more and 10 or less, more preferably 0.01 or more and 8 or less, even more preferably 0.02 or more and 7 or less, still more preferably 0.02 or more and 5 or less, still more preferably 0.02 or more and 3 or less, still more preferably 0.02 or more and 2 or less, still more preferably 0.03 or more and 1 or less, still more preferably 0.03 or more and 0.7 or less, still more preferably 0.03 or more and 0.45 or less, still more preferably 0.04 or more and 0.3 or less, and still more preferably 0.04 or more and 0.23 or less.

[0038] The mass ratio of component (C) to component (A) in the spray composition [(C) / (A)] is preferably 0.0001 or more, more preferably 0.001 or more, even more preferably 0.01 or more, still more preferably 0.025 or more, and even more preferably 0.05 or more, from the viewpoint of improving the spray uniformity and spray area of ​​the composition. Also, from the viewpoint of improving the arthropod control effect, it is preferably 500 or less, more preferably 100 or less, even more preferably 10 or less, still more preferably 5 or less, still more preferably 3 or less, still more preferably 1 or less, still more preferably 0.4 or less, still more preferably 0.2 or less, and even more preferably 0.15 or less. The mass ratio of component (C) to component (A) in the spray composition [(C) / (A)] is preferably 0.0001 or more and 500 or less, more preferably 0.001 or more and 100 or less, even more preferably 0.001 or more and 10 or less, still more preferably 0.01 or more and 5 or less, still more preferably 0.01 or more and 3 or less, still more preferably 0.025 or more and 1 or less, still more preferably 0.025 or more and 0.5 or less, still more preferably 0.05 or more and 0.25 or less, and still more preferably 0.05 or more and 0.15 or less.

[0039] The mass ratio of component (B) to component (A) in the spray composition [(B) / (A)] is preferably 0.0001 or more, more preferably 0.001 or more, even more preferably 0.01 or more, still more preferably 0.1 or more, still more preferably 0.3 or more, and still more preferably 0.5 or more, from the viewpoint of improving the antiseptic properties of the composition. Also, from the viewpoint of reducing discomfort, it is preferably 500 or less, more preferably 100 or less, even more preferably 10 or less, still more preferably 5 or less, still more preferably 3 or less, and still more preferably 2 or less. The mass ratio of component (B) to component (A) in the spray composition [(B) / (A)] is preferably 0.0001 or more and 500 or less, more preferably 0.001 or more and 100 or less, even more preferably 0.01 or more and 10 or less, still more preferably 0.1 or more and 5 or less, still more preferably 0.3 or more and 3 or less, and still more preferably 0.5 or more and 1 or less.

[0040] The mass ratio of component (C) to the total amount of components (A) and (B) in the spray composition [(C) / ((A)+(B))] is preferably 0.005 or more, more preferably 0.01 or more, even more preferably 0.015 or more, and still more preferably 0.02 or more, from the viewpoint of improving spray uniformity and spray area of ​​the composition. Furthermore, from the viewpoint of improving arthropod control efficacy, it is preferably 0.8 or less, more preferably 0.6 or less, even more preferably 0.4 or less, still more preferably 0.22 or less, and still more preferably 0.12 or less. The mass ratio of component (C) to the total amount of component (A) and component (B) in the spray composition [(C) / ((A)+(B))] is preferably 0.005 or more and 0.8 or less, more preferably 0.01 or more and 0.6 or less, even more preferably 0.015 or more and 0.4 or less, still more preferably 0.02 or more and 0.22 or less, and still more preferably 0.02 or more and 0.12 or less.

[0041] From the viewpoints of improving the arthropod control effect and improving the spray uniformity and spray area of ​​the composition, the total content of components (A) to (C) in the spray composition is preferably 0.015% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.04% by mass or more, even more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, even more preferably 0.2% by mass or more, even more preferably 0.3% by mass or more, even more preferably 0.4% by mass or more, and even more preferably 0.5% by mass or more. From the viewpoints of improving the spray uniformity and spray area of ​​the composition and reducing discomfort to the user, the total content is preferably 20% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 5% by mass or less, even more preferably 3% by mass or less, even more preferably 2% by mass or less, even more preferably 1.7% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1.2% by mass or less, and even more preferably 1% by mass or less. The total content of components (A) to (C) in the spray composition is preferably 0.015% by mass or more and 20% by mass or less, even more preferably 0.02% by mass or more and 15% by mass or less, even more preferably 0.04% by mass or more and 10% by mass or less, even more preferably 0.05% by mass or more and 5% by mass or less, even more preferably 0.1% by mass or more and 3% by mass or less, even more preferably 0.2% by mass or more and 2% by mass or less, even more preferably 0.3% by mass or more and 1.7% by mass or less, even more preferably 0.4% by mass or more and 1.5% by mass or less, even more preferably 0.5% by mass or more and 1.2% by mass or less, and even more preferably 0.5% by mass or more and 1% by mass or less.

[0042] <Ingredient (D): Water> The composition of the present invention further contains component (D): water. There are no particular limitations on the water used in the present invention, and examples that can be used include ion-exchanged water, pure water, and distilled water. The water content in the spray composition is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, still more preferably 95% by mass or more, still more preferably 98% by mass or more, still more preferably 98.5% by mass or more, and preferably 99.5% by mass or less, more preferably 99.4% by mass or less. The water content in the spray composition is preferably 50% by mass or more and 99.5% by mass or less, more preferably 60% by mass or more and 99.5% by mass or less, even more preferably 70% by mass or more and 99.5% by mass or less, still more preferably 80% by mass or more and 99.5% by mass or less, even more preferably 90% by mass or more and 99.4% by mass or less, still more preferably 95% by mass or more and 99.4% by mass or less, and still more preferably 98% by mass or more and 99.4% by mass or less. The content of water in the composition may be the balance of components (A) to (C).

[0043] The mass ratio of component (A) to component (D) in the spray composition [(A) / (D)] is preferably 0.001 or more, more preferably 0.002 or more, even more preferably 0.003 or more, and still more preferably 0.005 or more, from the viewpoint of improving the mosquito-repelling performance of the composition. Also, from the viewpoint of spray uniformity of the composition, it is preferably 5 or less, more preferably 3 or less, even more preferably 1 or less, still more preferably 0.7 or less, and still more preferably 0.6 or less. The mass ratio of component (A) to component (D) in the spray composition [(A) / (D)] is preferably 0.001 or more and 5 or less, more preferably 0.002 or more and 3 or less, even more preferably 0.003 or more and 1 or less, still more preferably 0.003 or more and 0.7 or less, and even more preferably 0.005 or more and 0.6 or less.

[0044] The mass ratio of component (B) to component (D) in the spray composition [(B) / (D)] is preferably 0.00001 or more, more preferably 0.0001 or more, even more preferably 0.001 or more, still more preferably 0.002 or more, and still more preferably 0.0023 or more from the viewpoint of improving the antiseptic properties of the composition. Also, from the viewpoint of reducing discomfort, it is preferably 0.1 or less, more preferably 0.05 or less, even more preferably 0.01 or less, still more preferably 0.0075 or less, and still more preferably 0.005 or less. The mass ratio of component (B) to component (D) in the spray composition [(B) / (D)] is preferably 0.00001 or more and 0.1 or less, more preferably 0.0001 or more and 0.05 or less, even more preferably 0.001 or more and 0.01 or less, still more preferably 0.002 or more and 0.0075 or less, and even more preferably 0.0025 or more and 0.005 or less.

[0045] The mass ratio of component (C) to component (D) in the spray composition [(C) / (D)] is preferably 0.00001 or more, more preferably 0.0001 or more, even more preferably 0.0005 or more, and even more preferably 0.00075 or more, from the viewpoint of improving the spray uniformity and spray area of ​​the composition. Also, from the viewpoint of improving the spray area, it is preferably 0.2 or less, more preferably 0.1 or less, even more preferably 0.05 or less, even more preferably 0.01 or less, even more preferably 0.0075 or less, even more preferably 0.005 or less, even more preferably 0.0025 or less, even more preferably 0.0015 or less, and even more preferably 0.0008 or less. The mass ratio of component (C) to component (D) in the spray composition [(C) / (D)] is preferably 0.00001 or more and 0.2 or less, more preferably 0.00001 or more and 0.1 or less, even more preferably 0.0001 or more and 0.05 or less, still more preferably 0.0001 or more and 0.01 or less, still more preferably 0.0005 or more and 0.0075 or less, still more preferably 0.0005 or more and 0.005 or less, still more preferably 0.00075 or more and 0.0025 or less, still more preferably 0.00075 or more and 0.0015 or less, and still more preferably 0.00075 or more and 0.0008 or less.

[0046] <Ingredient (E): Fragrance> The composition of the present invention may further contain a fragrance as component (E). Examples of component (E) include amyl butyrate, isoeugenol, isopulegol, isomenthone, ethyl vanillin, eugenol, eugenol acetate, ocimene, capric acid, caryophyllene, carvacrol, carvone, camphor, camphene, cinnamic acid, ethyl cinnamate, geraniol, geranyl acetate, germacrene, methyl salicylate, citral, citronellal, citronellol, 1,8-cineole (eucalyptol), dillapiole, cinnamyl acetate, cinnamyl alcohol, cinnamyl aldehyde, cymene, cedrene, cedrol, and tamarind. Examples of the hydroxybenzoates include one or more selected from the group consisting of melon, thymol, thujopsene, tetrahydrolinalool, terpineol, terpinen-4-ol, terpinene, butyl lactate, nepetalactone, neral, nerol, vanillin, pinene, piperonal, piperonyl alcohol, phenandrene, 2-phenylethylpropionate, pulegone, heliotropin, verbenone, benzyl acetate, benzyl alcohol, benzyl benzoate, bornyl acetate, myrcene, p-menthane-3,8-diol, menthol, menthone, linalool, and limonene. When the composition of the present invention contains component (E), the content of component (E) in the composition is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, even more preferably 0.01% by mass or more, and is preferably 3% by mass or less, more preferably 2% by mass or less, even more preferably 1% by mass or less.

[0047] <Insecticidal ingredient> It is preferable that the composition of the present invention does not contain an insecticidal component from the viewpoint of safety for the human body and the environment, from the viewpoint of effectively exerting the arthropod control effect of component (A), and from the viewpoint of reducing discomfort to users. The composition of the present invention uses component (A) as an active ingredient for controlling arthropods, and can be a composition with high arthropod control effect even without containing a known insecticidal ingredient. In addition, it can suppress the irritation to the nose and throat and the odor caused by the insecticidal ingredient. The insecticidal component may be any known insecticidal component or acaricidal component other than a surfactant.

[0048] Examples of insecticidal components include pyrethroid insecticides, organophosphorus insecticides, and carbamate insecticides. Examples of pyrethroid insecticides include metofluthrin, dl,d-T80-allethrin, phthalthrin, d-T80-phthalthrin, d,d-T80-prallethrin, d,d-T98-prallethrin, d-T80-resmethrin, transfluthrin, imiprothrin, cyphenothrin, d,dT-cyphenothrin, empenthrin, permethrin, fenothrin, etofenprox, and pyrethrins. In addition, examples of insecticidal components other than pyrethroid insecticides include organophosphorus insecticides such as fenitrothion and malathion, carbamate insecticides such as propoxur and carbaryl, acaricides such as kelthane, quinomethionate and hexathiazox, and neonicotinoid insecticides such as imidacloprid, dinotefuran and clothiazinin.

[0049] The content of the insecticidal component in the composition of the present invention is specifically less than 1% by mass, preferably 0.1% by mass or less, more preferably 0.01% by mass or less, even more preferably 0.001% by mass or less, and even more preferably substantially 0% by mass.

[0050] <Other ingredients> The spray composition may also contain, in addition to the above components, for example, anionic surfactants, cationic surfactants, amphoteric surfactants, colorants, solvents, pH adjusters, etc., within the scope of not impairing the effects of the invention. However, the content of components other than components (A) to (D) in the spray composition is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 15% by mass or less, still more preferably 10% by mass or less, still more preferably 5% by mass or less, still more preferably 1% by mass or less, still more preferably 0.5% by mass or less, and still more preferably 0.1% by mass or less.

[0051] <ph> From the viewpoint of improving the arthropod control effect, the pH of the composition of the present invention at 25°C is preferably 9 or less, more preferably 8.5 or less, and even more preferably 8 or less. From the viewpoint of safety to humans and the environment, the pH is preferably 3 or more, more preferably 4 or more, even more preferably 4.5 or more, and even more preferably 5 or more. The pH of the composition of the present invention at 25°C is preferably 3 or more and 9 or less, more preferably 4 or more and 8.5 or less, even more preferably 4.5 or more and 8 or less, and even more preferably 5 or more and 8 or less. The pH of the composition at 25°C can be measured by the method described in the Examples.

[0052] <Viscosity> The viscosity of the composition of the present invention at 25°C is preferably 1 mPa·s or more, more preferably 1.04 mPa·s or more, and even more preferably 1.08 mPa·s or more, from the viewpoint of improving the arthropod control effect, the reach of spray droplets of the composition to arthropods, and discomfort to arthropods; and from the viewpoint of improving the spray uniformity and spray area of ​​the composition, the viscosity is preferably 20 mPa·s or less, more preferably 10 mPa·s or less, even more preferably 5 mPa·s or less, still more preferably 3.5 mPa·s or less, still more preferably 3 mPa·s or less, and even more preferably 2.5 mPa·s or less. The viscosity of the composition of the present invention at 25°C is preferably 1 mPa·s or more and 20 mPa·s or less, more preferably 1 mPa·s or more and 10 mPa·s or less, even more preferably 1.04 mPa·s or more and 5 mPa·s or less, still more preferably 1.04 mPa·s or more and 3.5 mPa·s or less, still more preferably 1.08 mPa·s or more and 3 mPa·s or less, and still more preferably 1.08 mPa·s or more and 2.5 mPa·s or less. The viscosity of the composition at 25°C can be measured by the method described in the examples.

[0053] The method for producing the spray composition is not particularly limited. For example, the spray composition can be produced by blending the components (A) to (D) and other components used as needed, and mixing them using a known stirring device or the like.

[0054] [Spray] The present invention provides a spray for controlling arthropods, which comprises the spray composition filled in a spray container or a spray device. The spray container or spray device is not particularly limited as long as it can be filled with the spray composition and sprayed onto a target object. The spray container or spray device preferably comprises a container or tank for storing the spray composition, a spray mechanism for spraying the spray composition, and a discharge port for discharging the spray composition. The spray mechanism comprises a flow path communicating with the spray composition stored in the storage container, and the spray composition fed from the flow path can be pressure-fed by a piston or the like and sent to a discharge port through a narrowed opening or flow path, thereby discharging the spray composition in the form of droplets or a mist. The discharge port may be a part of the spray mechanism, or may be a separate structure as long as it is connected to the spray mechanism. The method of pressure-feeding the spray composition in the spray mechanism includes a non-aerosol method using a piston (including a plunger) as well as an aerosol method using a propellant such as compressed gas. The spray container or spray device may be a handheld type that can be held in the hand, or a small, portable type such as a drone. In either case, the discharge port preferably has a discharge flow path in which the flow path direction immediately before the opening is directed toward the arthropod. The discharge port preferably has a cylindrical discharge flow path, and the inner diameter of the discharge flow path is preferably 0.1 to 1 mm, more preferably 0.2 to 0.8 mm, and even more preferably 0.3 to 0.6 mm.

[0055] Examples of spray containers include aerosol containers filled with a propellant such as compressed gas, and non-compressed spray containers that do not require a propellant. However, from the viewpoint of adjusting the size of the spray droplets of the spray composition and improving the arthropod control effect, the reach of the spray droplets of the composition to arthropods, the uniformity of spraying, and the spray area, a non-compressed spray container with atmospheric pressure inside the container is preferred. As a non-compressed spray container, from the viewpoint of adjusting the size of the spray droplets of the spray composition and improving the arthropod control effect, the spray uniformity and the spray area of ​​the composition, an extrusion-type spray container is preferred, a trigger spray container is more preferred, and a pressure-accumulator trigger spray container is even more preferred. Pressure-accumulator spray containers are generally structured so that a piston slides relative to a cylinder housed inside the container, causing liquid in the cylinder that exceeds a certain pressure to be sprayed from a nozzle. That is, the liquid is sprayed outside the container only when the liquid pressure in the cylinder exceeds a certain pressure, which is advantageous in terms of controlling the particle size of the sprayed droplets. An example of a pressure-accumulating trigger spray container is the container described in JP 2017-226474 A.

[0056] The capacity of the spray container or spray device is not particularly limited, but is, for example, 50 mL or more and 10 L or less from the viewpoint of spraying toward a target object.

[0057] The diameter of the nozzle of the spray container or spray device is preferably 0.1 mm or more, more preferably 0.3 mm or more, from the viewpoint of reducing discomfort to the user, improving the arthropod control effect, the uniformity of spraying the composition, and the spray area; from the same viewpoint, it is preferably 2.0 mm or less, more preferably 1.5 mm or less, and even more preferably 1.0 mm or less. The "diameter of the nozzle of the spray container" refers to the maximum inner diameter of the tip of the spray nozzle of the spray container. The shape of the nozzle is not particularly limited, but a circular or elliptical shape is preferred.

[0058] The amount of the spray composition discharged from the spray container or spray device is, in terms of the amount per discharge, preferably 0.2 g or more, more preferably 0.5 g or more, and even more preferably 0.7 g or more, from the viewpoint of arthropod control effect. Furthermore, from the viewpoint of reducing discomfort when using the flying pest control spray, the amount is preferably 4.0 g or less, more preferably 2.0 g or less, even more preferably 1.8 g or less, and even more preferably 1.5 g or less.

[0059] The operation time of the spray container or spray device, i.e., the time required for the operation necessary to discharge the formulation, is preferably 0.1 seconds, more preferably 0.2 seconds, and even more preferably 0.3 seconds from the viewpoint of improving the arthropod control effect, the spray uniformity of the composition, and the spray area, and is preferably 10 seconds or less, more preferably 5 seconds or less, even more preferably 3 seconds or less, even more preferably 2 seconds or less, and even more preferably 1 second or less from the viewpoint of reducing discomfort to the user.

[0060] The discharge time of the spray composition from the spray container or spray device (the time from the start of discharge of the spray composition to the end of discharge in one operation of the spray device) is preferably 0.05 seconds or more, more preferably 0.1 seconds or more, and even more preferably 0.2 seconds or more, from the viewpoint of improving the arthropod control effect, the spray uniformity and the spray area of ​​the composition. Furthermore, from the viewpoint of reducing discomfort to the user, it is preferably 10 seconds or less, more preferably 5 seconds or less, even more preferably 3 seconds or less, even more preferably 2 seconds or less, and even more preferably 1.5 seconds or less.

[0061] The spray rate of the spray composition from the spray container or spray device (discharge rate / discharge time of the spray composition) is preferably 0.1 g / second or more, more preferably 0.5 g / second, even more preferably 0.75 g / second or more, and even more preferably 0.9 g / second or more, from the viewpoints of improving the arthropod control effect, spray uniformity of the composition, and spray area. Also, from the viewpoints of reducing discomfort to the user and spray uniformity of the composition, it is preferably 20 g / second or less, more preferably 10 g / second or less, even more preferably 8 g / second or less, and even more preferably 5 g / second or less.

[0062] In the spray of the present invention, the proportion of spray droplets having a particle size of less than 20 μm in the spray composition ejected from the spray container is preferably 1.5% or less, more preferably 1% or less, even more preferably 0.8% or less, still more preferably 0.6% or less, from the viewpoint of reducing discomfort to the user and improving the arthropod control effect, spray uniformity and spray area of ​​the composition, and is also preferably 0.005% or more, more preferably 0.01% or more, even more preferably 0.05% or more, and still more preferably 0.1% or more. The proportion of spray droplets with a particle size of less than 20 μm in the spray composition discharged from the spray container is preferably 0.005% or more and 1.5% or less, more preferably 0.01% or more and 1% or less, even more preferably 0.05% or more and 0.8% or less, and even more preferably 0.1% or more and 0.6% or less. The proportion of spray droplets of the above-mentioned spray composition having a particle size of less than 20 μm is a value based on the volume particle size distribution of the spray composition sprayed using a spray container. The volume particle size distribution of the spray composition is a value measured by laser diffraction using a Spraytec laser diffraction system (Malvern Panalytic Al, model number: STP5921 equipped with a 300 mm lens from the same company) for the spray at a horizontal distance of 15 cm from the nozzle of the spray container into which the composition is filled and discharged, and can be measured specifically by the method described in the Examples. The measurement range of the volume particle size distribution using this method is 1 to 1000 μm.

[0063] [Arthropod control methods] The present invention can further provide a method for controlling arthropods, which comprises the step of contacting arthropods with the spray composition of the present invention. Examples of methods for contacting arthropods with the spray composition include spraying the spray composition onto a space where arthropods are present or onto agricultural crops or horticultural plants. For spraying the spray composition, a spray prepared by filling the composition into the aforementioned spray container or spraying device can be used. Preferred aspects of the spray composition, such as the amount and duration of discharge, of the spray composition from the spray container or spraying device are as described above.

[0064] In relation to the above-mentioned embodiment, the present invention further discloses the following spray composition for controlling arthropods.

[0065] <1> A spray composition for arthropod control, comprising: component (A): a nonionic surfactant; component (B): a preservative; component (C): a thickener; and component (D): water.

[0066] <2> the mass ratio of the component (C) to the component (B) in the spray composition [(C) / (B)] is preferably 0.01 or more and 10 or less, more preferably 0.01 or more and 8 or less, even more preferably 0.02 or more and 7 or less, still more preferably 0.02 or more and 5 or less, still more preferably 0.02 or more and 3 or less, still more preferably 0.02 or more and 2 or less, still more preferably 0.03 or more and 1 or less, still more preferably 0.03 or more and 0.7 or less, still more preferably 0.03 or more and 0.45 or less, still more preferably 0.04 or more and 0.3 or less, and still more preferably 0.04 or more and 0.23 or less; <1> The spray composition for controlling arthropods described in 1. <3> The surface tension of a 3 mmol / kg aqueous solution of the component (A) at 25°C is preferably 27 mN / m or more and 50 mN / m or less, more preferably 27 mN / m or more and 45 mN / m or less, more preferably 27.5 mN / m or more and 40 mN / m or less, even more preferably 28 mN / m or more and 33 mN / m or less, and still more preferably 28 mN / m or more and 31 mN / m or less. <1> or <2> The spray composition for controlling arthropods described in 1. <4> The component (A) preferably comprises one or more selected from the group consisting of polyoxyalkylene alkyl ether, alkyl glucoside, and alkyl glyceryl ether, more preferably comprises a polyoxyalkylene alkyl ether, even more preferably comprises a polyoxyethylene alkyl ether, still more preferably comprises one or more selected from the group consisting of polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, and polyoxyethylene 2-hexyldecyl ether, still more preferably comprises polyoxyethylene lauryl ether, still more preferably comprises polyoxyethylene lauryl ether having an average number of moles of oxyethylene units added of 4 to 20, still more preferably 5 to 12. <1> ~ <3> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <5> The component (B) preferably contains one or more selected from the group consisting of benzoic acid or a derivative thereof, phenoxyethanol, sorbic acid or a salt thereof, benzyl alcohol, polylysine, and protamine sulfate, more preferably contains one or more selected from the group consisting of benzoic acid or a derivative thereof, phenoxyethanol, sorbic acid or a salt thereof, and benzyl alcohol, and more preferably contains one or more selected from the group consisting of sodium benzoate and potassium sorbate. <1> ~ <4> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <6> The component (C) preferably contains one or more selected from the group consisting of cationic polymers, anionic polymers, nonionic polymers, and amphoteric or dipolar polymers, more preferably contains one or more selected from the group consisting of carboxyvinyl polymers, carboxymethyl cellulose, carrageenan, xanthan gum, and nonionic cellulose ethers, even more preferably contains one or more selected from the group consisting of carboxyvinyl polymers, carboxymethyl cellulose, and hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose, and even more preferably contains hydroxyethyl cellulose. <1> ~ <5> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <7> The content of the component (A) is preferably 0.01% by mass or more and 10% by mass or less, even more preferably 0.02% by mass or more and 8% by mass or less, even more preferably 0.04% by mass or more and 6% by mass or less, even more preferably 0.05% by mass or more and 5% by mass or less, even more preferably 0.07% by mass or more and 3% by mass or less, even more preferably 0.1% by mass or more and 2% by mass or less, even more preferably 0.2% by mass or more and 1.5% by mass or less, even more preferably 0.2% by mass or more and 1.2% by mass or less, even more preferably 0.2% by mass or more and 1% by mass or less, even more preferably 0.3% by mass or more and 0.8% by mass or less, even more preferably 0.3% by mass or more and 0.6% by mass or less, and even more preferably 0.3% by mass or more and 0.5% by mass or less. <1> ~ <6> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <8> The content of the component (B) is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.002% by mass or more and 4% by mass or less, even more preferably 0.005% by mass or more and 3% by mass or less, still more preferably 0.008% by mass or more and 2% by mass or less, still more preferably 0.01% by mass or more and 1% by mass or less, still more preferably 0.02% by mass or more and 0.8% by mass or less, still more preferably 0.1% by mass or more and 0.5% by mass or less, and still more preferably 0.1% by mass or more and 0.45% by mass or less. <1> ~ <7> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <9> The content of the component (C) is preferably 0.001% by mass or more and 5% by mass or less, more preferably 0.002% by mass or more and 4% by mass or less, even more preferably 0.005% by mass or more and 3% by mass or less, still more preferably 0.008% by mass or more and 2% by mass or less, still more preferably 0.01% by mass or more and 1% by mass or less, still more preferably 0.01% by mass or more and 0.8% by mass or less, still more preferably 0.01% by mass or more and 0.5% by mass or less, still more preferably 0.01% by mass or more and 0.4% by mass or less, still more preferably 0.015% by mass or more and 0.3% by mass or less, still more preferably 0.015% by mass or more and 0.15% by mass or less, and still more preferably 0.015% by mass or more and 0.08% by mass or less. <1> ~ <8> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <10> The mass ratio of component (C) to the total amount of components (A) and (B) [(C) / ((A)+(B))] is preferably 0.005 or more and 0.8 or less, more preferably 0.01 or more and 0.6 or less, even more preferably 0.015 or more and 0.4 or less, still more preferably 0.02 or more and 0.22 or less, and still more preferably 0.02 or more and 0.12 or less. <1> ~ <9> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <11> The total content of the components (A) to (C) is preferably 0.015% by mass or more and 20% by mass or less, even more preferably 0.02% by mass or more and 15% by mass or less, even more preferably 0.04% by mass or more and 10% by mass or less, even more preferably 0.05% by mass or more and 5% by mass or less, even more preferably 0.1% by mass or more and 3% by mass or less, even more preferably 0.2% by mass or more and 2% by mass or less, even more preferably 0.3% by mass or more and 1.7% by mass or less, even more preferably 0.4% by mass or more and 1.5% by mass or less, even more preferably 0.5% by mass or more and 1.2% by mass or less, and even more preferably 0.5% by mass or more and 1% by mass or less. <1> ~ <10> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <12> The mass ratio of component (C) to component (A) [(C) / (A)] is preferably 0.0001 or more and 500 or less, more preferably 0.001 or more and 100 or less, even more preferably 0.001 or more and 10 or less, still more preferably 0.01 or more and 5 or less, still more preferably 0.01 or more and 3 or less, still more preferably 0.025 or more and 1 or less, still more preferably 0.025 or more and 0.5 or less, still more preferably 0.05 or more and 0.25 or less, and still more preferably 0.05 or more and 0.15 or less. <1> ~ <11> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <13> The mass ratio of component (B) to component (A) [(B) / (A)] is preferably 0.0001 or more and 500 or less, more preferably 0.001 or more and 100 or less, even more preferably 0.01 or more and 10 or less, still more preferably 0.1 or more and 5 or less, still more preferably 0.3 or more and 3 or less, and still more preferably 0.5 or more and 1 or less. <1> ~ <12> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <14> The content of the component (D) is preferably 50% by mass or more and 99.5% by mass or less, more preferably 60% by mass or more and 99.5% by mass or less, even more preferably 70% by mass or more and 99.5% by mass or less, still more preferably 80% by mass or more and 99.5% by mass or less, still more preferably 90% by mass or more and 99.4% by mass or less, still more preferably 95% by mass or more and 99.4% by mass or less, and still more preferably 98% by mass or more and 99.4% by mass or less. <1> ~ <13> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <15> The mass ratio of component (A) to component (D) [(A) / (D)] is preferably 0.001 or more and 5 or less, more preferably 0.002 or more and 3 or less, even more preferably 0.003 or more and 1 or less, still more preferably 0.003 or more and 0.7 or less, and even more preferably 0.005 or more and 0.6 or less. <1> ~ <14> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <16> The mass ratio of component (B) to component (D) [(B) / (D)] is preferably 0.00001 or more and 0.1 or less, more preferably 0.0001 or more and 0.05 or less, even more preferably 0.001 or more and 0.01 or less, still more preferably 0.002 or more and 0.0075 or less, and even more preferably 0.0025 or more and 0.005 or less. <1> ~ <15> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <17> The mass ratio of component (C) to component (D) [(C) / (D)] is preferably 0.00001 or more and 0.2 or less, more preferably 0.00001 or more and 0.1 or less, even more preferably 0.0001 or more and 0.05 or less, still more preferably 0.0001 or more and 0.01 or less, still more preferably 0.0005 or more and 0.0075 or less, still more preferably 0.0005 or more and 0.005 or less, still more preferably 0.00075 or more and 0.0025 or less, still more preferably 0.00075 or more and 0.0015 or less, and still more preferably 0.00075 or more and 0.0008 or less. <1> ~ <16> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <18> Also contains ingredient (E): fragrance <1> ~ <17> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <19> The content of the component (E) is preferably 0.001% by mass or more and 3% by mass or less, more preferably 0.005% by mass or more and 2% by mass or less, and even more preferably 0.01% by mass or more and 1% by mass or less. <18> The spray composition for controlling arthropods described in 1. <20> The content of the insecticidal component is preferably less than 1% by mass, more preferably 0.1% by mass or less, more preferably 0.01% by mass or less, even more preferably 0.001% by mass or less, and even more preferably substantially 0% by mass. <1> ~ <19> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <21> The viscosity of the arthropod control spray composition at 25°C is preferably 1 mPa·s or more and 20 mPa·s or less, more preferably 1 mPa·s or more and 10 mPa·s or less, even more preferably 1.04 mPa·s or more and 5 mPa·s or less, still more preferably 1.04 mPa·s or more and 3.5 mPa·s or less, still more preferably 1.08 mPa·s or more and 3 mPa·s or less, and still more preferably 1.08 mPa·s or more and 2.5 mPa·s or less. <1> ~ <20> 1. The spray composition for controlling arthropods according to any one of the preceding claims. <22> The pH of the arthropod control spray composition at 25°C is preferably 3 or more and 9 or less, more preferably 4 or more and 8.5 or less, even more preferably 4.5 or more and 8 or less, and still more preferably 5 or more and 8 or less. <1> ~ <21> 1. The spray composition for controlling arthropods according to any one of the preceding claims.

[0067] <23> <1> ~ <22> 1. A spray for controlling arthropods, comprising the spray composition for controlling arthropods described in any one of the above items filled in a spray container or a spray device. <24> The spray container or spray device preferably comprises a container or tank for storing the arthropod control spray composition, a spray mechanism for spraying the arthropod control spray composition, and a discharge port for discharging the arthropod control spray composition. <23> A spray for controlling arthropods according to claim 1. <25> The outlet is preferably part of or in communication with a spray mechanism. <24> A spray for controlling arthropods according to claim 1. <26> The outlet preferably has a cylindrical outlet flow path. <24> or <25> A spray for controlling arthropods according to claim 1. <27> The inner diameter of the cylindrical discharge flow path is preferably 0.1 to 1 mm, more preferably 0.2 to 0.8 mm, and even more preferably 0.3 to 0.6 mm. <26> A spray for controlling arthropods according to claim 1. <28> The discharge flow path is preferably provided such that the flow path direction immediately before the opening of the discharge port is in a direction toward the arthropod during spraying. <26> or <27> A spray for controlling arthropods according to claim 1. <29> The diameter of the discharge port is preferably 0.1 to 2.0 mm, more preferably 0.3 to 1.5 mm, and even more preferably 0.3 to 1.0 mm. <23> ~ <28> 2. A spray for controlling arthropods according to any one of the preceding claims. <30> The amount of the arthropod control spray composition discharged from the spray container or spray device is preferably 0.2 to 4.0 g / time, more preferably 0.5 to 2.0 g / time, and even more preferably 0.7 to 1.8 g / time. <23> ~ <29> 2. A spray for controlling arthropods according to any one of the preceding claims. <31> The spray container is preferably a non-compression type spray container, more preferably an extrusion type spray container, more preferably a trigger spray container, and even more preferably a pressure-accumulation type trigger spray container. <23> ~ <30> 2. A spray for controlling arthropods according to any one of the preceding claims. <32> The proportion of spray droplets of the arthropod control spray composition discharged from the spray container that have a particle size of less than 20 μm is preferably 0.005% or more and 1.5% or less, more preferably 0.01% or more and 1% or less, even more preferably 0.05% or more and 0.8% or less, and still more preferably 0.1% or more and 0.6% or less. <23> ~ <31> 2. A spray for controlling arthropods according to any one of the preceding claims.

[0068] <33> <1> ~ <22> 2. A method for controlling arthropods, comprising a step of contacting arthropods with the arthropod control spray composition according to any one of the preceding claims. <34> The contacting method is preferably a method of spraying an arthropod control spray composition onto a space where arthropods are present, or onto agricultural crops or horticultural plants. <33> The method for controlling arthropods described in 1. <35> <1> ~ <22> 1. Use of the composition according to any one of the preceding items as a spray composition for controlling arthropods. [Example]

[0069] The present invention will be described below with reference to examples, but is not limited to the scope of the examples. In the examples, various evaluations and measurements were carried out by the following methods.

[0070] (pH) The pH of the spray composition was measured at 25°C using a pH meter (electrode: 6367-10D (manufactured by Horiba, Ltd.)).

[0071] (viscosity) The viscosity of the spray composition was measured at 25°C at 100 rpm using a viscometer TVB-10M (manufactured by Toki Sangyo Co., Ltd.) with a low viscosity adapter or a rotor appropriate for the measurement range from rotors No. 1 to 4.

[0072] (Percentage of spray droplets with a particle size of less than 20 μm) The volumetric particle size distribution of the sprayed droplets was measured by laser diffraction at room temperature (25°C) using a Spraytec Laser Diffraction System (Malvern Panalytical, model STP5921 equipped with a 300mm lens). Each composition was filled into a trigger-type spray container (trigger type: pressure-accumulating, 370mL capacity, 0.8mm nozzle diameter, 0.9g discharge rate) (a trigger-type sprayer for Lysol Disinfectant EX (manufactured by Kao Corporation)) and placed in a spray container with the nozzle tip positioned 15cm horizontally from the measurement area of ​​the laser diffraction system. The composition was sprayed by operating the trigger once, and the volumetric particle size distribution of the sprayed droplets detected in the measurement area with a laser length of 34cm and a laser width of 1.8cm was measured. The measurement range of the volumetric particle size distribution using this instrument was 1-1000µm. During the trigger operation, the trigger was pulled at a full stroke with approximately constant pressure so that the spray direction from the nozzle of the spray container was horizontal to the ground. The trigger operation time (the time from starting to finish pulling the trigger) was 0.38 seconds, the liquid ejection time (the time from starting to finish ejecting the liquid) was 0.22 seconds, and the spray rate (amount ejected / liquid ejection time) was 4.0 g / second. From the measurement results of the volumetric particle size distribution obtained, the proportion of spray droplets with a particle size of less than 20 μm was calculated and shown in Table 1.

[0073] (Discomfort when spraying) 100 mL of the spray composition prepared in each example was filled into the trigger spray container (trigger type: pressure-accumulating, capacity 370 mL, nozzle diameter: 0.8 mm, discharge amount: 0.9 g / time) to prepare a spray. The composition was sprayed into a sink measuring 55 cm x 140 cm x 25 cm in height by operating the sprayer's trigger five full strokes. Immediately after spraying, panelists placed their faces in the sink and tried to breathe, and the discomfort felt was evaluated according to the following criteria. The results are shown in Table 1. A lower score indicates less discomfort and a better result. <Evaluation criteria> 1: No discomfort, no strange feeling or irritation in the nose or throat 2: I feel a slight discomfort in my throat, but no irritation in my nose or throat. 3: Slight discomfort and slight irritation in nose and throat 4: Discomfort and irritation in the nose and throat 5: I have severe discomfort in my nose and throat, and feel quite irritated.

[0074] (Spray uniformity) The spray was placed at a position where the nozzle was 30 cm from the wall and 25 cm from the floor. A 24 cm x 33.5 cm water-sensitive paper was attached to the wall, and the spray composition was sprayed by operating the spray trigger once with a full stroke toward the water-sensitive paper. The spray uniformity was evaluated based on the spray marks recorded on the water-sensitive paper according to the following criteria, and the results are shown in Table 1. <Evaluation criteria> A: The spray marks are circular and evenly sprayed. C: Other than the above (non-circular spray marks (including donut-shaped marks), uneven spraying, etc.)

[0075] (Spray area) The area of ​​the spray marks obtained in the "spray uniformity" evaluation was processed using image analysis software (ImageJ, manufactured by the National Institutes of Health, USA), and the area was calculated using the image conversion function. From the results, the spray area was evaluated according to the following criteria, and the results are shown in Table 1. <Evaluation criteria> AA: 400cm 2 End A:200cm 2 More than 400cm 2 less than B:100cm 2 More than 200cm 2 less than C:100cm 2 less than

[0076] (Mosquito dropping performance) Three acrylic boxes (6 x 6 x 4 cm) containing four female Aedes albopictus mosquitoes were prepared, each covered on the front and back with mesh cloth (nylon, 15D, mesh shape: hexagonal, mesh size: 1.5 mm), and stacked as shown in Figure 1. The spray composition of each example, filled in the trigger spray container, was sprayed onto the stacked acrylic boxes by operating the trigger once with a full stroke from a distance of 40 cm. Of the total of 12 Aedes albopictus mosquitoes, the number of Aedes albopictus mosquitoes that fell was counted, and the value of the number of Aedes albopictus mosquitoes that fell / 12 x 100 (%) is shown in Table 1. A higher value indicates a higher mosquito-falling performance.

[0077] Examples 1 to 9 and Comparative Examples 1 to 4 (Preparation and Evaluation of Spray Compositions) The components shown in Table 1 were blended and mixed with a stirrer to prepare a spray composition for arthropod control. The amounts shown in the table are the active ingredient amounts (% by mass) of each component. Using the resulting compositions, the pH and viscosity were measured by the methods described above. The prepared composition was filled into the trigger spray container (trigger type: pressure-accumulating, capacity 370 mL, nozzle diameter: 0.8 mm, discharge rate: 0.9 g / time) to prepare a spray. The resulting spray was evaluated using the methods described above for the proportion of spray droplets with a particle size of less than 20 μm, discomfort during spraying, spray uniformity, spray area, and mosquito repelling performance. The evaluation results are shown in Table 1.

[0078] [Table 1]

[0079] The components listed in Table 1 are as follows: (A) Polyoxyethylene (6) lauryl ether: "EMULGEN 108" manufactured by Kao Corporation. Surface tension of a 3 mmol / kg aqueous solution at 25°C: 28.3 mN / m ·(B) Sodium benzoate: Manufactured by Wuhan Organic Industry Co., Ltd. (C) Hydroxyethyl cellulose: "HEC BR 520 00 PC" manufactured by Gaomi Yinying Technology Co., Ltd.

[0080] As can be seen from Table 1, the spray composition and spray of the present invention can reduce discomfort during use. They also have excellent spray uniformity and can be sprayed over a wide area, resulting in excellent mosquito repelling performance.

[0081] Furthermore, this embodiment discloses the following formulation examples.

[0082] [Table 2]

[0083] [Table 3]

[0084] Table 4

[0085] Table 5

[0086] Table 6

[0087] Table 7

[0088] Table 8

[0089] Table 9

[0090] Table 10

[0091] Table 11

[0092] Table 12

[0093] Table 13

[0094] [Table 14]

[0095] The components listed in Tables 2 to 14 are as follows. (A) Polyoxyethylene (6) lauryl ether: "EMULGEN 108" manufactured by Kao Corporation. Surface tension of a 3 mmol / kg aqueous solution at 25°C: 28.3 mN / m (A) Polyoxyethylene (12) monolaurate: "EMANON1112" manufactured by Kao Corporation. Surface tension of a 3 mmol / kg aqueous solution at 25°C: 29.5 mN / m ·(B) Sodium benzoate: Manufactured by Wuhan Organic Industry Co., Ltd. (B) Potassium sorbate: manufactured by Tokyo Chemical Industry Co., Ltd. (C) Hydroxyethyl cellulose: "HEC BR 52000 PC" manufactured by Gaomi Yinying Technology Co., Ltd. (C) Xanthan gum: MP Gokyo Food & Chemical Co., Ltd. "KELDENT" (C) Sodium carboxymethylcellulose: "Sunrose F350-4" manufactured by Nippon Paper Industries Co., Ltd.

[0096] As the component (E) shown in Tables 3 to 14, either a fragrance disclosed in Table 15 or a fragrance composition disclosed in Table 16 is blended. [Table 15]

[0097] [Table 16] [Industrial Applicability]

[0098] According to the present invention, it is possible to provide a spray composition for arthropod control that reduces discomfort during use, has excellent spray uniformity, and can be sprayed over a wide area, thereby allowing spray droplets to reach arthropods present over a wide area appropriately.< / ph>

Claims

1. The composition contains component (A): a nonionic surfactant, component (B): a preservative, component (C): a thickener, and component (D): water, A spray composition for arthropod control, in which the surface tension of a 3 mmol / kg aqueous solution of component (A) at 25°C is 27 mN / m or more and 50 mN / m or less, the mass ratio of component (C) to component (B) [(C) / (B)] is 0.01 or more and 10 or less, and the total content of components (A) to (C) is 0.015 mass% or more and 20 mass% or less.

2. 2. The spray composition according to claim 1, wherein the component (B) comprises one or more selected from the group consisting of benzoic acid or a derivative thereof, phenoxyethanol, sorbic acid or a salt thereof, benzyl alcohol, polylysine, and protamine sulfate.

3. 2. The spray composition of claim 1, wherein component (C) comprises one or more members selected from the group consisting of anionic polymers and nonionic polymers.

4. 2. The spray composition according to claim 1, wherein the content of component (A) in the spray composition is 0.01% by mass or more and 10% by mass or less.

5. 2. The spray composition according to claim 1, wherein the content of component (B) in the spray composition is 0.001% by mass or more and 5% by mass or less.

6. 2. The spray composition according to claim 1, wherein the content of component (C) in the spray composition is 0.001% by mass or more and 5% by mass or less.

7. 2. The spray composition according to claim 1, wherein the viscosity of the spray composition at 25°C is 1 mPa·s or more and 20 mPa·s or less.

8. 2. The spray composition of claim 1, wherein the pH of the spray composition at 25°C is 4 or more and 9 or less.

9. A spray for arthropod control, comprising the spray composition according to any one of claims 1 to 8 filled in a spray container or a spray device.

10. The spray according to claim 9, wherein the spray container is a non-pressurized spray container.

11. The spray according to claim 9, wherein the proportion of spray droplets having a particle size of less than 20 μm in the spray composition discharged from the spray container is 1.5% or less.

12. A method for controlling arthropods, comprising the step of contacting arthropods with the spray composition according to any one of claims 1 to 8.

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