Pest control composition

Abstract

To provide a pest control composition that dries quickly, has little unpleasant odor, and exhibits excellent pest knockdown performance. [Solution] A pest control composition comprising component (A): cationic surfactant, component (B): betaine-type amphoteric surfactant, and component (C): water, wherein the pH of the composition at 25°C is 3.5 or higher and 9.5 or lower.

Description

Technical Field

[0001] The present invention relates to a composition for pest control.

Background Art

[0002] For the control of sanitary pests that transmit various pathogens to humans and livestock such as mosquitoes and mites, agricultural pests that damage crops in fields such as thrips, aphids, and flea beetles, or transmit viruses that become pathogens of crops, or horticultural pests, many various synthetic insecticides such as pyrethroid-based, organophosphorus-based insecticides, and carbamate-based insecticides are often used.

[0003] On the other hand, pest control agents for controlling pests without relying on these synthetic insecticides are known. For example, in Patent Document 1, a composition for controlling flying pests used by spraying as droplets having a predetermined average particle size and containing a predetermined amount of a wing wetting agent satisfying predetermined requirements is disclosed to be highly safe to the human body and the environment and capable of efficiently controlling flying pests by reducing their flying ability. In Patent Document 2, a composition for controlling flying pests containing at least one surfactant selected from a predetermined anionic surfactant and a predetermined nonionic surfactant, at least one compound selected from organic acids and organic acid salts, and water, and used by spraying on flying pests is disclosed to be highly safe to the human body and the environment and excellent in insecticidal properties.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the inventors have found that the pest control compositions disclosed in Patent Documents 1 and 2 still have room for improvement in that, when used by spraying indoors, it takes a long time for the sprayed material that falls onto floor surfaces such as tiles to dry. Furthermore, if pest control compositions have an unpleasant odor, it poses undesirable problems both in terms of manufacturing and in the actual use of the product. The present invention relates to providing a pest control composition that dries quickly, has little unpleasant odor, and exhibits excellent pest knockdown performance. [Means for solving the problem]

[0006] The inventors have found that a pest control composition containing a cationic surfactant, a betaine-type amphoteric surfactant, and water, with a pH within a specific range, can solve the above problems.

[0007] In other words, the present invention relates to the following. [1] A pest control composition comprising component (A): cationic surfactant, component (B): betaine-type amphoteric surfactant, and component (C): water, wherein the pH of the composition at 25°C is 3.5 or more and 9.5 or less. A pest control spray comprising filling the container of a sprayer with the pest control composition described in [2][1]. A method for controlling pests, comprising the step of spraying the pest control composition described in [3][1] and bringing the sprayed droplets into contact with pests. [4] Use as a pest control composition of a composition containing component (A): cationic surfactant, component (B): betaine-type amphoteric surfactant, and component (C): water, wherein the pH of the composition at 25°C is 3.5 or more and 9.5 or less. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a pest control composition that dries quickly, has little unpleasant odor, and has excellent pest knockdown performance. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram illustrating the method for evaluating the knockdown performance of mosquitoes in the example. [Modes for carrying out the invention]

[0010] [Definition] In this specification, "pest control composition" means a composition that can prevent and reduce damage caused by pests. Pests will be described later. In this specification, "pest control" means a state in which, after applying the composition to the pest, the pest is at least unable to move (knocked down). "Movement" here includes flight. In this specification, the pest knockdown performance shall be evaluated by the knockdown rate after application of the composition to the pest. The knockdown rate can be specifically evaluated by the method described in the examples. In this specification, "fast drying of a composition" means that the drying time until the liquid portion of the composition that has fallen onto a floor surface such as tiles disappears due to evaporation is short, and this can be specifically evaluated by the method described in the examples. In this specification, "low unpleasant odor of a composition" means that there is little amine odor, mainly derived from cationic surfactants.

[0011] [Pest control composition] The pest control composition of the present invention is Ingredient (A): Cationic surfactant, Ingredient (B): Betaine-type amphoteric surfactant, and Ingredient (C): water, A pest control composition containing [a specific substance], wherein the pH of the composition at 25°C is 3.5 or higher and 9.5 or lower. The pest control composition of the present invention (hereinafter also simply referred to as "(the composition of the present invention)") has the above-described structure, which allows it to dry quickly, has little unpleasant odor, and has excellent pest knockdown performance.

[0012] Although the reason why the composition of the present invention exhibits the above effects is not clear, it is considered as follows. The composition of the present invention contains a cationic surfactant as component (A) which is an active ingredient for pest control. Cationic surfactants are known as bases having various properties such as bactericidal properties. Here, the cationic moiety in component (A) has a high adsorptivity to a negatively charged surface. When component (A) adsorbs to a negatively charged surface, the hydrophobic moiety in component (A) faces outward, so it is considered that the adsorbed surface is hydrophobized. However, the pest control composition containing component (A) has the above-described surface hydrophobization effect and also has low wettability to a tile surface or the like, so the drying time tends to be long after it has fallen onto a floor surface such as a tile.

[0013] Therefore, the composition of the present invention contains, together with component (A), component (B) having a site capable of electrostatic interaction with the cationic moiety in component (A). By coexisting component (A) and component (B) in the composition, the strength of the positive charge of component (A) is controlled so that component (A) does not lose its surfactant effect, and it is considered that it has become possible to exhibit pest knockdown performance and improve the drying rate. In addition, the composition of the present invention has a pH at 25 °C of 3.5 or more and 9.5 or less. The anionic moiety in component (B) has a higher proportion of amphoteric or anionic forms having an anionic moiety as the pH of the composition is higher. Therefore, when the pH of the composition is 3.5 or more, the charge control effect of component (A) by the anionic moiety in component (B) is improved, so that it is considered that the pest knockdown performance and the drying rate are further improved. On the other hand, since the pH of the composition is 9.5 or less, the amine odor derived from component (A) is reduced, and it is considered that a composition with less unpleasant odor can be obtained.

[0014] The "pests" in the present invention mainly include insects that harm humans, livestock, their living spaces, and crops or horticultural plants. Specific examples of pests include sanitary pests such as mosquitoes, midges, flies, fleas, cockroaches, bedbugs, mites, etc.; unpleasant pests such as bees, ants, stink bugs, ladybugs, spiders, centipedes, millipedes, grasshoppers, etc.; and agricultural pests such as locusts, cicadas, leafhoppers, moths, thrips, beetles, cucumber beetles, aphids, caterpillars, and sweet potato weevils. Among these, the composition of the present invention is particularly excellent in the control effect against mosquitoes, midges, flies, fleas, cockroaches, bedbugs, stink bugs, thrips, beetles, and aphids. In this example, the knockdown performance of the composition against pests is evaluated by the knockdown rate of mosquitoes (Aedes albopictus), but the pests targeted for control by the composition of the present invention are not limited to mosquitoes.

[0015] <Component (A): Cationic surfactant> Examples of the cationic surfactant used as component (A) include one or more selected from the group consisting of quaternary ammonium salt type cationic surfactants and amine salt type cationic surfactants.

[0016] (Quaternary ammonium salt type cationic surfactant) Examples of the quaternary ammonium salt type cationic surfactant include one or more selected from the group consisting of (i) long-chain alkyltrimethylammonium salts, (ii) long-chain alkoxyalkyltrimethylammonium salts, (iii) di-long-chain alkyldimethylammonium salts, (iv) long-chain alkylamidoalkyltrimethylammonium salts, (v) long-chain alkylbenzyldimethylammonium salts, and (vi) long-chain alkylpyridinium salts.

[0017] Of the above, the number of carbon atoms in the long-chain alkyl or long-chain alkoxy group in (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (v) long-chain alkylbenzyldimethylammonium salt, and (vi) long-chain alkylpyridinium salt is preferably 8 or more, more preferably 22 or less, more preferably 18 or less, and even more preferably 16 or less, from the viewpoint of improving the drying speed when used in combination with component (B), suppressing unpleasant odors, and obtaining a composition with excellent insect knockdown performance. Furthermore, the number of carbon atoms in the long-chain alkyl or long-chain alkoxy group is preferably 8 or more and 22 or less, more preferably 8 or more and 18 or less, and even more preferably 8 or more and 16 or less. Furthermore, the number of carbon atoms in the long-chain alkyl group in (iv) long-chain alkylamide alkyltrimethylammonium salt is preferably 7 or more, more preferably 21 or less, more preferably 17 or less, and even more preferably 15 or less, from the viewpoint of improving the drying speed by using it in combination with component (B), suppressing unpleasant odors, and obtaining a composition with excellent insect knockdown performance.

[0018] In quaternary ammonium salt type cationic surfactants ((i) long-chain alkyltrialkylammonium salts, (ii) long-chain alkoxyalkyltrimethylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, (iv) long-chain alkylamide alkyltrimethylammonium salts, (v) long-chain alkylbenzyldimethylammonium salts, and (vi) long-chain alkylpyridinium salts), the counterions of the cationic group include alkyl sulfate ions, sulfate ions, phosphate ions, carboxylate ions (formate ions, acetate ions, propionate ions) having 1 to 3 carbon atoms, and halide ions such as chloride ions and bromide ions. Among these, halide ions are preferred, and chloride ions are more preferred, from the viewpoint of ease of manufacture and availability of raw materials.

[0019] (i) Examples of long-chain alkyltrialkylammonium salts include long-chain alkyltrimethylammonium salts and long-chain alkylethyldimethylammonium salts, and preferably include long-chain alkyltrimethylammonium salts. Examples of long-chain alkyltrialkylammonium salts include octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, octylethyldimethylammonium chloride, decylethyldimethylammonium chloride, laurylethyldimethylammonium chloride, tetradecylethyldimethylammonium chloride, cetylethyldimethylammonium chloride, stearylethyldimethylammonium chloride, and behenylethyldimethylammonium chloride.

[0020] (ii) Examples of long-chain alkoxyalkyltrimethylammonium salts include decyloxyethyltrimethylammonium chloride, decyloxypropyltrimethylammonium chloride, lauryloxyethyltrimethylammonium chloride, lauryloxypropyltrimethylammonium chloride, tetradecyloxyethyltrimethylammonium chloride, tetradecyloxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride, and stearoxypropyltrimethylammonium chloride.

[0021] (iii) Examples of dilong-chain alkyldialkylammonium salts include dilong-chain alkyldimethylammonium salts and dilong-chain alkylethylmethylammonium salts, and preferably include dilong-chain alkyldimethylammonium salts. Examples of dilong-chain alkyldialkylammonium salts include dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, dioctylethylmethylammonium chloride, didecylethylmethylammonium chloride, dilaurylethylmethylammonium chloride, ditetradecylethylmethylammonium chloride, dicetylethylmethylammonium chloride, distearylethylmethylammonium chloride, and dibehenylethylmethylammonium chloride.

[0022] (iv) Examples of long-chain alkylamide alkyltrimethylammonium salts include desilamidopropyltrimethylammonium chloride, lauramidopropyltrimethylammonium chloride, palmitamidopropyltrimethylammonium chloride, and stearamidopropyltrimethylammonium chloride.

[0023] (v) Examples of long-chain alkylbenzyldimethylammonium salts include benzalkonium chloride. A specific example is benzyl-(C12-16)alkyldimethyl chloride (SANIZOL C, manufactured by Kao Corporation).

[0024] (vi) Examples of long-chain alkylpyridinium salts include octylpyridinium chloride, decylpyridinium chloride, laurylpyridinium chloride, tridecylpyridinium chloride, tetradecylpyridinium chloride, cetylpyridinium chloride, and stearylpyridinium chloride.

[0025] Among the above, from the viewpoint of improving drying speed by using it in combination with component (B), from the viewpoint of suppressing unpleasant odors, and from the viewpoint of obtaining a composition with excellent insect knockdown performance, the quaternary ammonium salt type cationic surfactant preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (iv) long-chain alkylamide alkyltrimethylammonium salt, and (v) long-chain alkylbenzyldimethylammonium salt, more preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, and (v) long-chain alkylbenzyldimethylammonium salt, even more preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, and (v) long-chain alkylbenzyldimethylammonium salt, and even more preferably comprises decyltrimethylammonium It contains one or more selected from the group consisting of loride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, and benzalkonium chloride, and more preferably it contains one or more selected from the group consisting of decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, and benzalkonium chloride,More preferably, it comprises one or more selected from the group consisting of decyltrimethylammonium chloride, lauryltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, and benzalkonium chloride, and more preferably, it comprises one or more selected from the group consisting of dioctyldimethylammonium chloride and didecyldimethylammonium chloride.

[0026] (Amine salt type cationic surfactant) Examples of amine salt type cationic surfactants include one or more selected from the group consisting of (vii) long-chain alkyldimethylamines and their salts, (viii) long-chain alkoxyalkyldimethylamines and their salts, (ix) long-chain alkylamide alkyldimethylamines and their salts, (x) diethanolamine monofatty acid esters and their salts, (xi) triethanolamine monofatty acid esters and their salts, and (xii) triethanolamine difatty acid esters and their salts.

[0027] Of the above, (vii) the number of carbon atoms in the long-chain alkyl group in long-chain alkyldimethylamine and its salts, (viii) the number of carbon atoms in the long-chain alkoxy group in long-chain alkoxyalkyldimethylamine and its salts, and (x) the number of carbon atoms in the fatty acid in diethanolamine monofatty acid ester and its salts, (xi) triethanolamine monofatty acid ester and its salts, and (xii) triethanolamine difatty acid ester and its salts are preferably 8 or more, more preferably 22 or less, more preferably 18 or less, and even more preferably 16 or less. Furthermore, the number of carbon atoms in the long-chain alkyl group, long-chain alkoxy group, or fatty acid is preferably 8 or more and 22 or less, more preferably 8 or more and 18 or less, and even more preferably 8 or more and 16 or less. Furthermore, the number of carbon atoms in the long-chain alkyl group in (ix) long-chain alkylamide alkyldimethylamine and its salts is preferably 7 or more, more preferably 21 or less, more preferably 17 or less, and even more preferably 15 or less, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent insect knockdown performance.

[0028] In amine salt-type cationic surfactants, long-chain alkyldimethylamines, long-chain alkoxyalkyldimethylamines, long-chain alkylamide alkyldimethylamines, diethanolamine monofatty acid esters, triethanolamine monofatty acid esters, and triethanolamine difatty acid esters may be reacted with an acid beforehand to form salts and then incorporated into the composition, or they may be incorporated directly into the composition, and then an acid may be added to the composition to form salts within the composition. Therefore, the above amines, esters, and their salts are defined here as cationic surfactants. Furthermore, their content is calculated by the mass of the above amines or esters. Salts of long-chain alkyldimethylamines, long-chain alkoxyalkyldimethylamines, long-chain alkylamide alkyldimethylamines, diethanolamine mono-fatty acid esters, triethanolamine mono-fatty acid esters, and triethanolamine di-fatty acid esters include salts with organic or inorganic acids. Examples of organic acids include monocarboxylic acids such as acetic acid and propionic acid; dicarboxylic acids such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, and phthalic acid; polycarboxylic acids such as polyglutamic acid; hydroxycarboxylic acids such as glycolic acid, lactic acid, hydroxyacrylic acid, glyceric acid, malic acid, tartaric acid, and citric acid; and acidic amino acids such as glutamic acid and aspartic acid. Examples of inorganic acids include hydrochloric acid, sulfuric acid, and phosphoric acid.

[0029] (vii) Examples of long-chain alkyldimethylamines and their salts include N,N-dimethyloctylamine, N,N-dimethyldecylamine, N,N-dimethyllaurylamine, N,N-dimethyltetradecylamine, N,N-dimethylhexadecylamine, N,N-dimethylstearylamine, N,N-dimethylbehenylamine, and their salts.

[0030] (viii) Examples of long-chain alkoxyalkyldimethylamines and their salts include N,N-dimethyl-3-decyloxypropylamine, N,N-dimethyl-3-lauryloxypropylamine, N,N-dimethyl-3-tetradecyloxypropylamine, N,N-dimethyl-3-hexadecyloxypropylamine, N,N-dimethyl-3-octadecyloxypropylamine, and their salts.

[0031] (ix) Long-chain alkylamides: Examples of alkyldimethylamines and their salts include N-[3-(dimethylamino)propyl]octylamide, N-[3-(dimethylamino)propyl]decylamide, N-[3-(dimethylamino)propyl]lauramide, N-[3-(dimethylamino)propyl]palmitamide, N-[3-(dimethylamino)propyl]stearamide, and salts thereof.

[0032] (x) Examples of diethanolamine monofatty acid esters and their salts include diethanolamine monolaurate, diethanolamine monomyristate, diethanolamine monopalmitate, diethanolamine monostearate, and salts thereof.

[0033] (xi) Examples of triethanolamine monofatty acid esters and their salts include triethanolamine monolaurate, triethanolamine monomyristate, triethanolamine monopalmitate, triethanolamine monostearate, and salts thereof.

[0034] (xii) Examples of triethanolamine difatty acid esters and their salts include triethanolamine dilaurate, triethanolamine dimyristate, triethanolamine dipalmitate, triethanolamine distearate, and salts thereof.

[0035] Among the above, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent insect knockdown performance, the amine salt type cationic surfactant preferably comprises one or more selected from the group consisting of (vii) long-chain alkyldimethylamine and its salts, (viii) long-chain alkoxyalkyldimethylamine and its salts, and (ix) long-chain alkylamide alkyldimethylamine and its salts, more preferably comprises one or more selected from the group consisting of (vii) long-chain alkyldimethylamine and its salts, and (viii) long-chain alkoxyalkyldimethylamine and its salts, and even more preferably It contains one or more selected from the group consisting of N,N-dimethyloctylamine, N,N-dimethyldecylamine, N,N-dimethyllaurylamine, N,N-dimethyltetradecylamine, N,N-dimethylhexadecylamine, N,N-dimethylstearylamine, N-[3-(dimethylamino)propyl]octylamide, N-[3-(dimethylamino)propyl]decylamide, N-[3-(dimethylamino)propyl]lauramide, N-[3-(dimethylamino)propyl]palmitamide, N-[3-(dimethylamino)propyl]stearamide, and salts thereof.

[0036] The cationic surfactant used as component (A) preferably contains a quaternary ammonium salt type cationic surfactant, more preferably one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (iv) long-chain alkylamide alkyltrimethylammonium salt, (v) long-chain alkylbenzyldimethylammonium salt, and (vi) long-chain alkylpyridinium salt, even more preferably one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (iv) long-chain alkylamide alkyltrimethylammonium salt, and (v) long-chain alkylbenzyldimethylammonium salt, and even more preferably (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, ( iii) comprising one or more selected from the group consisting of di-long-chain alkyldialkylammonium salts and (v) long-chain alkylbenzyldimethylammonium salts, more preferably comprising one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (iii) di-long-chain alkyldialkylammonium salts and (v) long-chain alkylbenzyldimethylammonium salts, more preferably comprising one or more selected from the group consisting of octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, and benzalkonium chloride,More preferably, it contains one or more selected from the group consisting of octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, and benzalkonium chloride; more preferably, it contains one or more selected from the group consisting of octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, and benzalkonium chloride; and even more preferably, it contains one or more selected from the group consisting of dioctyldimethylammonium chloride and didecyldimethylammonium chloride.

[0037] <Component (B): Betaine-type amphoteric surfactant> The betaine-type amphoteric surfactant used as component (B) may be one or more selected from the group consisting of carboxybetaine-type amphoteric surfactants, sulfobetaine-type amphoteric surfactants, imidazolinium betaine-type amphoteric surfactants, and phosphobetaine-type amphoteric surfactants.

[0038] (Carboxybetaine-type amphoteric surfactant) Examples of carboxybetaine-type amphoteric surfactants include one or more selected from the group consisting of alkyldimethylaminoacetic acid betaine and fatty acid amidopropyl betaine, and preferably include fatty acid amidopropyl betaine. The number of carbon atoms in the alkyl group in alkyldimethylaminoacetic acid betaine and the number of carbon atoms in the fatty acid in fatty acid amidopropyl betaine are preferably 8 or more, more preferably 10 or more, and preferably 22 or less, more preferably 18 or less, from the viewpoint of improving the drying speed when used in combination with component (A), suppressing unpleasant odors, and obtaining a composition with excellent insect knockdown performance. Furthermore, the number of carbon atoms in the alkyl group and fatty acid are preferably 8 or more and 22 or less, more preferably 10 or more and 18 or less.

[0039] The alkyldimethylaminoacetic acid betaine preferably comprises one or more selected from the group consisting of lauryldimethylaminoacetic acid betaine and stearyldimethylaminoacetic acid betaine. Fatty acid amidopropyl betaine preferably comprises one or more selected from the group consisting of lauric acid amidopropyl betaine [lauramidopropyl betaine], stearic acid amidopropyl betaine [stearamidopropyl betaine], palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine [cocamidopropyl betaine], more preferably comprises one or more selected from the group consisting of lauric acid amidopropyl betaine, stearic acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine, and even more preferably comprises lauric acid amidopropyl betaine.

[0040] (Sulfobetaine-type amphoteric surfactant) Examples of sulfobetaine-type amphoteric surfactants include one or more selected from the group consisting of alkyl sulfobetaine and alkyl hydroxy sulfobetaine, and preferably include alkyl hydroxy sulfobetaine. The number of carbon atoms in the alkyl group in alkyl sulfobetaine and alkyl hydroxy sulfobetaine is preferably 8 or more, more preferably 10 or more, and preferably 22 or less, and more preferably 18 or less, from the viewpoint of improving the drying speed when used in combination with component (A), suppressing unpleasant odors, and obtaining a composition with excellent insect knockdown performance. Furthermore, the number of carbon atoms in the alkyl group is preferably 8 or more and 22 or less, and more preferably 10 or more and 18 or less.

[0041] The alkyl sulfobetaine preferably comprises one or more selected from the group consisting of lauryldimethylsulfoethyl betaine, lauryldimethylsulfopropyl betaine, myristyldimethylsulfoethyl betaine, myristyldimethylsulfopropyl betaine, stearyldimethylsulfoethyl betaine, stearyldimethylsulfopropyl betaine, and coconut oil fatty acid dimethyl sulfopropyl betaine, and more preferably comprises one or more selected from the group consisting of lauryldimethylsulfoethyl betaine and lauryldimethylsulfopropyl betaine.

[0042] The alkylhydroxysulfobetaine preferably comprises one or more selected from the group consisting of lauryl(hydroxysulfoethyl)dimethylbetaine, lauryl(hydroxysulfopropyl)dimethylbetaine (also referred to as laurylhydroxysultaine or laurylhydroxysulfobetaine), myristyl(hydroxysulfoethyl)dimethylbetaine, myristyl(hydroxysulfopropyl)dimethylbetaine, and stearyl(hydroxysulfopropyl)dimethylbetaine, more preferably comprising one or more selected from the group consisting of lauryl(hydroxysulfoethyl)dimethylbetaine and lauryl(hydroxysulfopropyl)dimethylbetaine, and even more preferably comprising lauryl(hydroxysulfopropyl)dimethylbetaine.

[0043] (Imidazolinium betaine-type amphoteric surfactant) Examples of imidazolinium betaine-type amphoteric surfactants include N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate. The number of carbon atoms in the N-acyl group of the N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate is preferably 8 or more, more preferably 10 or more, and also preferably 22 or less, and more preferably 18 or less, from the viewpoint of improving the drying speed when used in combination with component (A), suppressing unpleasant odors, and obtaining a composition with excellent insect knockdown performance. The number of carbon atoms in the above N-acyl group is preferably 8 to 22, more preferably 10 to 18. The imidazolinium betaine-type amphoteric surfactant preferably comprises one or more selected from the group consisting of N-coconut oil fatty acid acyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine [also called sodium cocoamphoacetate, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine], N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine [sodium cocoamphopropionate], and sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine [sodium lauroamphoacetate].

[0044] (Phosphobetaine-type amphoteric surfactant) Examples of phosphobetaine-type amphoteric surfactants include alkylphosphobetaine. The number of carbon atoms in the alkylalkyl group of alkylphosphobetaine is preferably 8 or more, more preferably 10 or more, and preferably 22 or less, and more preferably 18 or less, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent insect knockdown performance when used in combination with component (A). The number of carbon atoms in the alkylalkyl group is preferably 8 to 22, more preferably 10 to 18. Specific examples of phosphobetaine-type amphoteric surfactants include laurylhydroxyphosphobetaine.

[0045] Among the above, from the viewpoint of increasing the drying speed of the composition by electrostatic interaction with component (A) and improving solubility in the composition, component (B) preferably comprises one or more selected from the group consisting of carboxybetaine-type amphoteric surfactants and sulfobetaine-type amphoteric surfactants, more preferably comprises one or more selected from the group consisting of alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, alkyl sulfobetaine and alkyl hydroxysulfobetaine, even more preferably comprises one or more selected from the group consisting of fatty acid amidopropyl betaine and alkyl hydroxysulfobetaine, and even more preferably lauric acid amidopropyl betaine, stearic acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lau It comprises one or more selected from the group consisting of lyl(hydroxysulfoethyl)dimethyl betaine, lauryl(hydroxysulfopropyl)dimethyl betaine, myristyl(hydroxysulfoethyl)dimethyl betaine, myristyl(hydroxysulfopropyl)dimethyl betaine, and stearyl(hydroxysulfopropyl)dimethyl betaine, and more preferably one or more selected from the group consisting of lauric acid amidopropyl betaine, stearic acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl(hydroxysulfoethyl)dimethyl betaine, and lauryl(hydroxysulfopropyl)dimethyl betaine, and more preferably one or more selected from lauric acid amidopropyl betaine and lauryl(hydroxysulfopropyl)dimethyl betaine.

[0046] <Ingredient (C): Water> The composition of the present invention further contains water. There are no particular restrictions on the water used in the present invention; for example, ion-exchanged water, pure water, purified water, distilled water, etc., can be used.

[0047] <Content> From the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent insect knockdown performance, the content of components (A) to (C) in the composition of the present invention is preferably as follows. From the viewpoint of obtaining a composition with excellent pest knockdown performance, the content of component (A) in the pest control composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.03% 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 0.08% by mass or more, even more preferably 0.1% by mass or more, even more preferably 0.12% by mass or more, and even more preferably 0.15% by mass or more. Furthermore, from the viewpoint of obtaining a composition that dries quickly and has little unpleasant odor, it is preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, even more preferably 0.8% by mass or less, even more preferably 0.6% by mass or less, even more preferably 0.5% by mass or less, even more preferably 0.4% by mass or less, and even more preferably 0.3% by mass or less. Furthermore, the content of component (A) in the pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 3% by mass or less, even more preferably 0.03% by mass or more and 3% by mass or less, even more preferably 0.04% by mass or more and 2% by mass or less, even more preferably 0.05% by mass or more and 2% by mass or less, even more preferably 0.08% by mass or more and 1% by mass or less, even more preferably 0.1% by mass or more and 0.8% by mass or less, even more preferably 0.12% by mass or more and 0.8% by mass or less, even more preferably 0.15% by mass or more and 0.6% by mass or less, even more preferably 0.15% by mass or more and 0.5% by mass or less, even more preferably 0.15% by mass or more and 0.4% by mass or less, and even more preferably 0.15% by mass or more and 0.3% by mass or less.

[0048] From the viewpoint of obtaining a composition that dries quickly, the content of component (B) in the pest control composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.03% 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 0.08% by mass or more, even more preferably 0.1% by mass or more, even more preferably 0.12% by mass or more, and even more preferably 0.15% by mass or more. Furthermore, from the viewpoint of obtaining a composition with excellent pest knockdown performance, the content is preferably 5% by mass or less, more preferably 3% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, even more preferably 0.8% by mass or less, even more preferably 0.5% by mass or less, and even more preferably 0.3% by mass or less. Furthermore, the content of component (B) in the pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 3% by mass or less, even more preferably 0.03% by mass or more and 2% by mass or less, even more preferably 0.04% by mass or more and 1% by mass or less, even more preferably 0.05% by mass or more and 0.8% by mass or less, even more preferably 0.08% by mass or more and 0.5% by mass or less, even more preferably 0.1% by mass or more and 0.5% by mass or less, even more preferably 0.12% by mass or more and 0.5% by mass or less, and even more preferably 0.15% by mass or more and 0.3% by mass or less.

[0049] The mass ratio of component (A) to component (B) in the pest control composition [(A) / (B)] is preferably 0.01 or higher, more preferably 0.1 or higher, even more preferably 0.2 or higher, even more preferably 0.4 or higher, even more preferably 0.5 or higher, even more preferably 0.6 or higher, and even more preferably 0.8 or higher. Furthermore, from the viewpoint of obtaining a composition that dries quickly and has little unpleasant odor, the ratio is preferably 20 or lower, more preferably 15 or lower, even more preferably 12 or lower, even more preferably 10 or lower, even more preferably 5 or lower, even more preferably 3 or lower, even more preferably 2 or lower, even more preferably 1.5 or lower, and even more preferably 1.2 or lower. Furthermore, the mass ratio of component (A) to component (B) in the pest control composition [(A) / (B)] is preferably 0.01 to 20, more preferably 0.1 to 15, even more preferably 0.2 to 15, even more preferably 0.4 to 10, even more preferably 0.5 to 5, even more preferably 0.6 to 3, even more preferably 0.8 to 2, even more preferably 0.8 to 1.5, and even more preferably 0.8 to 1.2.

[0050] The total content of component (A) and component (B) in the pest control composition is preferably 0.02% by mass or more, 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, and even more preferably 0.4% by mass or more, from the viewpoint of improving the pest knockdown performance of the composition. Furthermore, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent pest knockdown performance, the total content is preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 6% by mass or less, even more preferably 5% by mass or less, even more preferably 4% by mass or less, even more preferably 2% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1% by mass or less, even more preferably 0.8% by mass or less, and even more preferably 0.6% by mass or less. Furthermore, the total content of component (A) and component (B) in the pest control composition is preferably 0.02% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more and 8% by mass or less, even more preferably 0.1% by mass or more and 6% by mass or less, even more preferably 0.2% by mass or more and 5% by mass or less, even more preferably 0.3% by mass or more and 4% by mass or less, even more preferably 0.3% by mass or more and 2% by mass or less, even more preferably 0.3% by mass or more and 1.5% by mass or less, even more preferably 0.3% 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, and even more preferably 0.4% by mass or more and 0.6% by mass or less.

[0051] The water content of component (C) in the pest control composition of the present invention is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, even more preferably 98% by mass or more, preferably 99.98% by mass or less, more preferably 99.9% by mass or less, even more preferably 99.8% by mass or less, and even more preferably 99.6% by mass or less. In this invention, the water content refers to the total water content in the composition, including not only purified water directly added to the composition, but also the water contained in each of the added components. The water content can be calculated from the amount of water added and the amount of water in the added components, but it can also be measured using a Karl Fischer moisture meter, for example.

[0052] The total content of components (A) to (C) in the pest control composition is preferably 70% by mass or more, more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, and even more preferably 98% by mass or more, and 100% by mass or less, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, and has excellent pest knockdown performance.

[0053] The mass ratio of the total amount of components (A) and (B) to component (C) in the pest control composition [{(A)+(B)} / (C)] is preferably 0.0002 or higher, more preferably 0.0005 or higher, more preferably 0.001 or higher, more preferably 0.002 or higher, more preferably 0.003 or higher, and more preferably 0.008 or higher, and from the viewpoint of further improving the drying speed of the composition and the pest knockdown performance, it is preferably 0.23 or lower, more preferably 0.2 or lower, more preferably 0.17 or lower, more preferably 0.15 or lower, more preferably 0.13 or lower, more preferably 0.1 or lower, more preferably 0.09 or lower, more preferably 0.07 or lower, more preferably 0.05 or lower, more preferably 0.04 or lower, more preferably 0.02 or lower, and more preferably 0.015 or lower.

[0054] <Ingredient (D): Nonionic surfactant> The composition of the present invention may further contain a nonionic surfactant as component (D). Examples of nonionic surfactants used as component (D) include one or more selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, alkyl glucosides, alkyl glyceryl ethers, polyglycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, and polyoxyethylene modified silicones. Among the above, from the viewpoint of obtaining a composition that dries quickly, has little unpleasant odor, has excellent pest knockdown performance, and has improved stability, component (D) preferably includes one or more selected from the group consisting of polyoxyalkylene alkyl ethers and alkyl glyceryl ethers.

[0055] (Polyoxyalkylene alkyl ether) The number of carbon atoms in the alkyl group in the polyoxyalkylene alkyl ether is preferably 8 to 22, more preferably 8 to 18, even more preferably 8 to 16, even more preferably 8 to 14, and even more preferably 8 to 12. The alkyl group may be either a linear alkyl group or a branched alkyl group, but a linear alkyl group is preferred.

[0056] The oxyalkylene in the polyoxyalkylene alkyl ether preferably comprises one or more selected from the group consisting of oxyethylene and oxypropylene, and more preferably comprises oxyethylene. That is, the polyoxyalkylene alkyl ether preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether, poly(oxyethylene / oxypropylene) alkyl ether, and polyoxypropylene alkyl ether, more preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether and poly(oxyethylene / oxypropylene) alkyl ether, and even more preferably comprises polyoxyethylene alkyl ether.

[0057] Furthermore, the average number of moles of ethylene oxide (EO) added to the polyoxyethylene alkyl ether is preferably 2 or more, more preferably 3 or more, even more preferably 5 or more, and also preferably 40 or less, more preferably 30 or less, even more preferably 20 or less, and even more preferably 15 or less, from the viewpoint of improving the drying speed of the composition and the stability of the composition. Furthermore, the average number of moles of ethylene oxide (EO) added to the polyoxyethylene alkyl ether is preferably 2 to 40, more preferably 3 to 30, even more preferably 5 to 20, and even more preferably 5 to 15.

[0058] Specific examples of polyoxyalkylene alkyl ethers include polyoxyethylene lauryl ether, in which the average number of added moles of ethylene oxide (EO) is preferably 2 to 40, more preferably 3 to 30, even more preferably 5 to 20, and even more preferably 5 to 15.

[0059] (Alkyl glyceryl ether) The number of carbon atoms in the alkyl group of the alkylglyceryl ether used as component (D) is preferably 8 to 22, more preferably 8 to 18, even more preferably 8 to 16, even more preferably 8 to 14, and even more preferably 8 to 12. The alkyl group may be either a linear alkyl group or a branched alkyl group, but a branched alkyl group is preferred from the viewpoint of further improving the drying speed and insect knockdown performance of the composition and improving the stability of the composition. Specific examples of alkylglyceryl ethers include one or more selected from the group consisting of octylglyceryl ether, 2-ethylhexylglyceryl ether, nonylglyceryl ether, decylglyceryl ether, isodecylglyceryl ether, laurylglyceryl ether, tridecylglyceryl ether, myristylglyceryl ether, stearylglyceryl ether, and isostearylglyceryl ether. Among these, alkylglyceryl ethers preferably include one or more selected from the group consisting of 2-ethylhexylglyceryl ether, decylglyceryl ether, isodecylglyceryl ether, and laurylglyceryl ether, more preferably include one or more selected from the group consisting of 2-ethylhexylglyceryl ether and isodecylglyceryl ether, and even more preferably include isodecylglyceryl ether.

[0060] Component (D) more preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether, poly(oxyethylene / oxypropylene) alkyl ether, polyoxypropylene alkyl ether, and alkyl glyceryl ether, from the viewpoint of further improving the drying speed and pest knockdown performance of the composition and improving the stability of the composition, even more preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether, poly(oxyethylene / oxypropylene) alkyl ether, and alkyl glyceryl ether, even more preferably comprises polyoxyethylene alkyl ether, and even more preferably comprises polyoxyethylene lauryl ether having an average number of added moles of ethylene oxide (EO) preferably between 2 and 40, more preferably between 3 and 30, even more preferably between 5 and 20, and even more preferably between 5 and 15.

[0061] When the pest control composition of the present invention contains component (D): a nonionic surfactant, the content of component (D) in the composition is preferably 0.01% by mass or more, more preferably 0.02% by mass or more, even more preferably 0.05% by mass or more, even more preferably 0.08% by mass or more, and even more preferably 0.1% by mass or more, from the viewpoint of further improving the drying speed and pest knockdown performance of the composition and improving the stability of the composition. Furthermore, from the viewpoint of reducing the drying residue of the composition, it is preferably 5% by mass or less, more preferably 2% by mass or less, even more preferably 1.5% by mass or less, even more preferably 1% by mass or less, even more preferably 0.8% by mass or less, and even more preferably 0.6% by mass or less. Furthermore, the content of component (D) in the pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 2% by mass or less, even more preferably 0.05% by mass or more and 1.5% by mass or less, even more preferably 0.08% by mass or more and 1% by mass or less, even more preferably 0.1% by mass or more and 0.8% by mass or less, and even more preferably 0.1% by mass or more and 0.6% by mass or less.

[0062] When the pest control composition of the present invention contains component (D): a nonionic surfactant, the mass ratio of component (D) to component (A) in the composition [(D) / (A)] is preferably 0.1 or higher, more preferably 0.2 or higher, even more preferably 0.4 or higher, even more preferably 0.5 or higher, and even more preferably 0.8 or higher, from the viewpoint of obtaining a composition that dries quickly and has little unpleasant odor, and from the viewpoint of improving the stability of the composition. Furthermore, from the viewpoint of improving the pest knockdown performance, it is preferably 10 or lower, even more preferably 5 or lower, and even more preferably 3 or lower. The mass ratio of component (D) to component (A) in the composition [(D) / (A)] is preferably 0.1 or higher and 10 or lower, more preferably 0.2 or higher and 5 or lower, even more preferably 0.4 or higher and 3 or lower, even more preferably 0.5 or higher and 3 or lower, and even more preferably 0.8 or higher and 3 or lower.

[0063] When the pest control composition of the present invention contains component (D): a nonionic surfactant, the total content of component (A) and component (D) in the composition is preferably 0.02% by mass or more, 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, and even more preferably 0.5% by mass or more, from the viewpoint of further enhancing the pest knockdown performance of the composition. Furthermore, from the viewpoint of obtaining a composition that dries quickly and has little unpleasant odor, it is preferably 15% by mass or less, 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 1.5% by mass or less, and even more preferably 1.2% by mass or less. Furthermore, the total content of component (A) and component (D) in the pest control composition is preferably 0.02% by mass or more and 15% by mass or less, more preferably 0.05% by mass or more and 10% by mass or less, even more preferably 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 1.5% by mass or less, and even more preferably 0.5% by mass or more and 1.2% by mass or less.

[0064] When the pest control composition of the present invention contains component (D): a nonionic surfactant, the mass ratio of the total amount of component (A) and component (D) to component (C) in the composition [{(A)+(D)} / (C)] is preferably 0.0002 or more, more preferably 0.0005 or more, more preferably 0.001 or more, more preferably 0.002 or more, more preferably 0.003 or more, more preferably 0.008 or more, and from the viewpoint of further improving the drying speed of the composition and the pest knockdown performance, it is preferably 0.3 or less, more preferably 0.25 or less, more preferably 0.2 or less, preferably 0.17 or less, more preferably 0.15 or less, more preferably 0.13 or less, more preferably 0.1 or less, more preferably 0.09 or less, more preferably 0.07 or less, more preferably 0.05 or less, more preferably 0.04 or less, more preferably 0.02 or less, and more preferably 0.015 or less.

[0065] <Ingredient (E): Fragrance> The composition of the present invention can further contain a fragrance as component (E). Examples of component (E) include amyl butyrate, isoeugenol, isopulegol, isomentone, 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), dihydrocarveol, cinnamyl acetate, cinnamyl alcohol, cinnamyl aldehyde, cymene, cedrene, cedrol, terpinolene, thymol, thujopsene, tetrahydrolinalool, terpineol, terpinene-4-ol, terpinene, butyl lactate, nepetalactone, neral, nerol, vanillin, pinene, piperonal, piperonyl alcohol, phenandrene, 2-phenylethyl propionate, pregegol, heliotropin, verbenone, benzyl acetate, benzyl alcohol, benzyl benzoate, bornyl acetate, myrcene, p-menthane-3,8-diol, menthol, mentone, linalool, and limonene, and one or more selected from the group consisting of these.

[0066] When the pest control composition of the present invention contains component (E): fragrance, the content of component (E) in the composition is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, still more preferably 0.01% by mass or more, and is preferably 3% by mass or less, more preferably 2% by mass or less, still more preferably 1% by mass or less. And the content of component (E) in the pest control composition 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, still more preferably 0.01% by mass or more and 1% by mass or less.

[0067] <pH adjuster> The composition of the present invention can further contain a pH adjuster. Examples of the pH adjuster include hydroxides of alkali metals or alkaline earth metals, carbonates or bicarbonates of alkali metals, organic acids or their salts, and inorganic acids or their salts.

[0068] Examples of alkali metal or alkaline earth metal hydroxides used as pH adjusters include one or more selected from the group consisting of potassium hydroxide, sodium hydroxide, and calcium hydroxide, preferably containing an alkali metal hydroxide, and more preferably containing one or more selected from the group consisting of potassium hydroxide and sodium hydroxide. Examples of alkali metal carbonates or bicarbonates include one or more selected from the group consisting of potassium carbonate, sodium carbonate, potassium bicarbonate, and sodium bicarbonate.

[0069] Organic acids used as pH adjusters include carboxylic acid compounds and organic sulfonic acid compounds, and preferably include carboxylic acid compounds having 6 or fewer carbon atoms. Examples of carboxylic acid compounds having 6 or fewer carbon atoms include aliphatic monocarboxylic acids having 6 or fewer carbon atoms, such as acetic acid, propionic acid, and butanoic acid; aliphatic dicarboxylic acids having 6 or fewer carbon atoms, such as malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, and fumaric acid; and hydroxycarboxylic acids having 6 or fewer carbon atoms, such as glycolic acid, lactic acid, glyceric acid, malic acid, tartaric acid, citric acid, and gluconic acid. Among these, carboxylic acid compounds having 6 or fewer carbon atoms preferably include one or more selected from the group consisting of aliphatic dicarboxylic acids having 6 or fewer carbon atoms and hydroxycarboxylic acids having 6 or fewer carbon atoms, more preferably include hydroxycarboxylic acids having 6 or fewer carbon atoms, and even more preferably include one or more selected from the group consisting of lactic acid, malic acid, tartaric acid, and citric acid. Examples of organic acid salts used as pH adjusters include salts of the above-mentioned organic acid with a strong alkali, preferably containing an alkali metal salt of an organic acid, more preferably containing an alkali metal salt of a carboxylic acid compound having 6 or fewer carbon atoms, even more preferably containing a sodium or potassium salt of a carboxylic acid compound having 6 or fewer carbon atoms, and even more preferably containing a sodium or potassium salt of one or more carboxylic acid compounds selected from the group consisting of aliphatic dicarboxylic acids and hydroxycarboxylic acids having 6 or fewer carbon atoms.

[0070] Examples of inorganic acids used as pH adjusters include one or more selected from the group consisting of hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, and polyphosphate, preferably containing one or more selected from the group consisting of hydrochloric acid, phosphoric acid, and polyphosphate, and more preferably containing one or more selected from the group consisting of hydrochloric acid and phosphoric acid. From the viewpoint of acting as a pH adjuster, examples of inorganic salts include salts of phosphoric acid or polyphosphate with a strong alkali, preferably containing alkali metal phosphates or polyphosphates, and more preferably containing alkali metal phosphates. Specific examples of inorganic salts used as pH adjusters include one or more selected from the group consisting of tripotassium phosphate, trisodium phosphate, dipotassium hydrogen phosphate, disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium dihydrogen phosphate, and sodium polyphosphate.

[0071] Among the above, the pH adjuster preferably comprises one or more selected from the group consisting of alkali metal hydroxides, organic acids or their salts, and inorganic acids; more preferably comprises one or more selected from the group consisting of alkali metal hydroxides, carboxylic acid compounds having 6 or fewer carbon atoms, sodium or potassium salts of carboxylic acid compounds having 6 or fewer carbon atoms, hydrochloric acid, and phosphoric acid; even more preferably comprises one or more selected from the group consisting of potassium hydroxide, sodium hydroxide, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, glycolic acid, lactic acid, glyceric acid, malic acid, tartaric acid, citric acid, gluconic acid, hydrochloric acid, and phosphoric acid; and even more preferably comprises one or more selected from the group consisting of sodium hydroxide, lactic acid, malic acid, tartaric acid, citric acid, hydrochloric acid, and phosphoric acid. The amount of pH adjusting agent in the composition of the present invention is not particularly limited as long as the pH of the composition is within the desired range.

[0072] <Other ingredients> The composition of the present invention may also contain surfactants, thickeners, preservatives, colorants, solvents, etc., other than the aforementioned components, to the extent that they do not impair the effects of the invention.

[0073] <Anionic surfactants> In the composition of the present invention, it is preferable to have a low content of anionic surfactant, from the viewpoint of avoiding a decrease in pest knockdown performance derived from component (A) due to the cancellation of the positive charge of component (A): cationic surfactant. The content of the anionic surfactant 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.

[0074] <Insecticide ingredients> From the viewpoint of safety for humans and the environment, the composition of the present invention preferably contains a low amount of insecticidal components. This is because the composition of the present invention uses component (A) as the active ingredient for controlling pests, and it is possible to create a composition with high pest knockdown performance even without containing known insecticidal components. Examples of the insecticidal component include known insecticidal components other than surfactants, acaricidal components, etc.

[0075] Examples of insecticidal components mentioned here include pyrethroid insecticides, organophosphate 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, phenothrin, etofenprox, and pyrethrin. Other insecticidal components besides pyrethroid insecticides include, for example, organophosphate 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 clothiadinine.

[0076] 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.

[0077] <Volatile organic solvent> From the viewpoint of further enhancing the insect knockdown performance of the composition, it is preferable that the composition of the present invention contains a low amount of one or more volatile organic solvents selected from the group consisting of ethanol, 1-propanol, 2-propanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether. The content of volatile organic solvents in the composition of the present invention is specifically less than 20% by mass, preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 7% by mass or less, even more preferably 4% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, even more preferably 0.1% by mass or less, and even more preferably substantially 0% by mass. In the present invention, a volatile organic solvent refers to an organic solvent having a boiling point of 250°C or less at atmospheric pressure (e.g., 1013.25 hPa).

[0078] <ph> The pH of the pest control composition at 25°C is 3.5 or higher, preferably 4 or higher, more preferably 4.5 or higher, even more preferably 5 or higher, and most preferably 5.5 or higher, from the viewpoint of obtaining a composition containing component (A) and component (B) and water that improves the drying rate and has excellent pest knockdown performance. Furthermore, from the viewpoint of obtaining a composition with less unpleasant odor, the pH is 9.5 or lower, preferably 9 or lower, more preferably 8.5 or lower, even more preferably 8 or lower, and most preferably 7.5 or lower. Moreover, the pH of the pest control composition at 25°C is 3.5 or higher and 9.5 or lower, preferably 4 or higher and 9 or lower, more preferably 4.5 or higher and 9 or lower, even more preferably 5 or higher and 8.5 or lower, even more preferably 5.5 or higher and 8 or lower, and most preferably 5.5 or higher and 7.5 or lower. The pH of the pest control composition at 25°C can be measured specifically by the method described in the examples.

[0079] <Manufacturing method> The method for producing the pest control composition is not particularly limited. For example, it can be produced by blending components (A) to (C), as well as components (D) and (E) as needed, and other components, and mixing them using a known stirring device or the like.

[0080] <Dosage form, usage> The compositions of the present invention are preferably used by spraying, and spraying includes dispensing. From this viewpoint, a preferred dosage form of the compositions of the present invention is a formulation that is liquid at 25°C. The composition of the present invention is preferably filled into a container or spraying device provided in a sprayer and used by spraying the liquid composition in droplets or mist form.

[0081] [Pest control spray] The present invention provides a pest control spray, which is obtained by filling the containment of a sprayer with the aforementioned pest control composition. The containment of the sprayer may be, for example, a container or tank to which the sprayer is attached. <Sprayer> The sprayer used for pest control sprays is not particularly limited as long as it has a container for filling with the aforementioned liquid formulation and is capable of spraying it in the form of droplets or mist. The droplets or mist may contain foam (foam particles). Examples of sprayers include aerosol sprayers filled with a propellant such as compressed gas, and atmospheric pressure sprayers that do not require a propellant. However, from the viewpoint of improving pest knockdown performance, an atmospheric pressure sprayer equipped with an extrusion structure such as a squeeze, piston, or pump, and which does not use a propellant such as compressed gas, is preferred. As for atmospheric pressure sprayers, from the viewpoint of improving pest knockdown performance, an extrusion type sprayer equipped with an extrusion structure is preferred, more preferably a trigger sprayer, and even more preferably a pressurized trigger sprayer. A pressurized sprayer generally has a structure in which a piston slides against a cylinder attached inside a container which is the housing, thereby ejecting liquid from a nozzle when the pressure in the cylinder exceeds a certain level. That is, the liquid is ejected from the sprayer only when the liquid pressure inside the cylinder exceeds a certain level, so the ejected droplets are pressurized and sprayed with a particle size of appropriate size. Note that the cylinder and pump are not limited to those attached inside the housing, and may be outside the housing as long as there is a flow path for the liquid formulation from the housing, and it is sufficient that there is a flow path for the liquid formulation in the extrusion mechanism. As an example of a pressurized trigger sprayer, the sprayer described in Japanese Patent Application Publication No. 2017-226474 can be cited. The capacity of the sprayer's container, such as a container or tank, is not particularly limited, but from the viewpoint of spraying towards the target object, it is preferably, for example, 30 mL or more and 2 L or less, and more preferably 50 mL or more and 500 mL or less.

[0082] Furthermore, the pest control composition of the present invention may be used by spraying it using a relatively large spraying device in addition to a handheld sprayer. The spraying device can be any device capable of ejecting the composition, which is a liquid formulation, in the form of droplets or mist, and includes spraying devices. The spraying device preferably comprises a tank for containing the composition (liquid formulation) of the present invention, a spray mechanism for spraying the composition, and a discharge port for ejecting the composition. The spray mechanism has a flow path communicating with the composition (liquid formulation) contained in the tank, and the composition sent from the flow path is pressurized by a piston or the like and sent through a narrowed opening or flow path to the discharge opening, thereby being ejected in the form of droplets or mist. The discharge port may be part of the spray mechanism, or it may be a separate structure as long as it is in communication with the spray mechanism. The composition feeding structure used as a spray mechanism can be a compression type, which uses a propellant such as compressed gas, or an atmospheric pressure type, which is represented by an extrusion structure that uses a piston (including a plunger) or a pump to pressurize the composition. From the viewpoint of improving pest knockdown performance, atmospheric pressure is preferred. Among atmospheric pressure types, a pressurized type is more preferred from the viewpoint of making the spray particles finer, in which a certain amount of the pressurized composition is stored before the discharge port.

[0083] Examples of spraying devices include handheld types with a handle that can be held by hand, and small mobile types such as drones. In both cases, it is preferable that the discharge channel, just before the opening at the discharge port, is directed toward the pests. The discharge port is preferably equipped with a cylindrical discharge channel, and the inner diameter of the discharge channel is preferably 0.1 mm to 1 mm, more preferably 0.2 mm to 0.8 mm, and even more preferably 0.3 mm to 0.6 mm. The discharge volume, as the discharge volume per spraying operation, is preferably 0.2 g / spray or more, more preferably 0.5 g / spray or more, even more preferably 0.7 g / spray or more, preferably 2 g / spray or less, more preferably 1.5 g / spray or less, and even more preferably 1.2 g / spray or less.

[0084] Examples of handheld sprayers or spraying devices include trigger sprayers and push-type sprayers, in which spraying is performed by pulling a trigger or pressing a push button. A handheld sprayer performs one spray by pulling the trigger in the case of a trigger sprayer, or by pressing the push button in the case of a push-type sprayer. From the viewpoint of using a handheld sprayer held in the hand, it is preferable that the handheld sprayer is of the trigger sprayer or push-type, and from the viewpoint of ease of performing one spray operation and repeated operation, it is preferable that it is of the trigger sprayer. Furthermore, from the viewpoint of spraying while being held in the hand, it is preferable that the discharge port is located on the side when held in the hand, and that the discharge flow path is formed facing laterally.

[0085] For small, mobile spraying devices such as drones, the discharge port may open and spray during flight when a switch is turned on, or it may be equipped with various known spraying mechanisms. Small, mobile spraying devices may be mounted on small airplanes as well as other means of transport such as drones. From the viewpoint of spraying towards an object during flight, it is preferable that the discharge port opening of the small, mobile spraying device is located on the downward side.

[0086] In a spraying device, the tank containing the composition is typically made of plastic, and in a handheld spraying device, a tube such as a dip tube is inserted into the tank to deliver the composition to the spraying mechanism. When the trigger is pulled or the push button is pressed, the composition in the cylinder area of ​​the piston or plunger is pressurized and sprayed to the outlet, and as the pulled trigger or push button is released, the cylinder area expands and the composition is drawn from the container or tank into the cylinder via the tube. The diameter of the discharge port of the spraying device is preferably 0.1 mm or larger, more preferably 0.2 mm or larger, and even more preferably 0.3 mm or larger, from the viewpoint of ensuring that the composition travels in a straight line without scattering up, down, left, or right, and efficiently reaches the pests. Similarly, it is preferably 1.5 mm or smaller, more preferably 1.2 mm or smaller, and even more preferably 1 mm or smaller. Note that "discharge port diameter of the spraying device" refers to the maximum diameter of the inner diameter at the tip of the discharge nozzle of the spraying device. The shape of the discharge port is not particularly limited, but a circular or elliptical shape is preferred.

[0087] [Pest control methods] The present invention further provides a method for controlling pests (hereinafter also referred to as "the method of the present invention") which includes the step of spraying the pest control composition of the present invention and bringing the sprayed droplets into contact with pests. The pest control method of the present invention preferably includes the steps of ejecting the pest control composition of the present invention from the discharge port of the sprayer or spraying device (more preferably the step of spraying the composition toward the pests), and bringing the spray droplets of the ejected composition into contact with the pests at a distance from the discharge port of the sprayer or spraying device. A method for bringing the spray droplets of the composition of the present invention into contact with pests includes spraying the composition of the present invention onto pests, or onto a space or object where pests are present. For example, this method involves filling the containment section of a sprayer or spraying device with the pest control composition, and then spraying the composition by directing the discharge port of the sprayer or spraying device towards the object.

[0088] From the viewpoint of efficiently eliminating pests by delivering a sufficient amount of spray droplets to knock down the pests using a sprayer or spraying device, the discharge amount per spray operation is preferably 0.2 g / spray or more, more preferably 0.5 g / spray or more, and even more preferably 0.7 g / spray or more. Furthermore, from the viewpoint of suppressing stickiness and sliminess during use, the discharge amount is preferably 2 g / spray or less, more preferably 1.5 g / spray or less, and even more preferably 1.2 g / spray or less. The spraying time of the composition varies depending on the number of pests and the purpose of spraying, but from the viewpoint of bringing some of the spray droplets of the composition into contact with the pests, it is preferably 1 to 60 seconds, more preferably 5 to 55 seconds, even more preferably 10 to 50 seconds, even more preferably 15 to 45 seconds, even more preferably 20 to 40 seconds, and even more preferably 2 to 35 seconds. The average particle size of the spray droplets of the composition is preferably 50-700 μm, more preferably 75-675 μm, even more preferably 100-650 μm, even more preferably 150-625 μm, even more preferably 175-600 μm, even more preferably 200-575 μm, even more preferably 225-550 μm, even more preferably 250-525 μm, even more preferably 275-500 μm, even more preferably 300-475 μm, even more preferably 325-450 μm, even more preferably 350-425 μm, and even more preferably 375-400 μm.

[0089] With regard to the embodiments described above, the present invention further discloses the following embodiments. <1> Ingredient (A): Cationic surfactant, Ingredient (B): Betaine-type amphoteric surfactant, and Ingredient (C): water, A pest control composition containing the above, wherein the pH of the composition at 25°C is 3.5 or higher and 9.5 or lower. <2> The aforementioned pests include one or more species selected from the group consisting of mosquitoes, black flies, flies, horseflies, midges, cockroaches, mites, bees, ants, stink bugs, pill bugs, spiders, millipedes, centipedes, house centipedes, grasshoppers, locusts, planthoppers, moths, thrips, scale insects, cucumber beetles, aphids, caterpillars and grubs, preferably one or more species selected from the group consisting of mosquitoes, black flies, flies, horseflies, midges, cockroaches, stink bugs, thrips, scale insects, cucumber beetles and aphids. <1> A composition for controlling pests. <3> The aforementioned component (A) includes one or more selected from the group consisting of quaternary ammonium salt type cationic surfactants and amine salt type cationic surfactants. <1> or <2> A composition for controlling pests. <4> The quaternary ammonium salt type cationic surfactant comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (ii) long-chain alkoxyalkyltrimethylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, (iv) long-chain alkylamidealkyltrimethylammonium salts, (v) long-chain alkylbenzyldimethylammonium salts, and (vi) long-chain alkylpyridinium salts. <3> A composition for controlling pests. <5> The number of carbon atoms in the long-chain alkyl or long-chain alkoxy group in the (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (v) long-chain alkylbenzyldimethylammonium salt, and (vi) long-chain alkylpyridinium salt is preferably 8 or more, preferably 22 or less, more preferably 18 or less, and even more preferably 16 or less. <4> A composition for controlling pests. <6> The number of carbon atoms in the long-chain alkyl group in (iv) long-chain alkylamide alkyltrimethylammonium salt and (vi) long-chain alkylpyridinium salt is preferably 7 or more, preferably 21 or less, more preferably 17 or less, and even more preferably 15 or less. <4> A composition for controlling pests. <7> The quaternary ammonium salt type cationic surfactant preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (ii) long-chain alkoxyalkyltrimethylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, (iv) long-chain alkylamide alkyltrimethylammonium salts, and (v) long-chain alkylbenzyldimethylammonium salts; more preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (ii) long-chain alkoxyalkyltrimethylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, and (v) long-chain alkylbenzyldimethylammonium salts; even more preferably comprises one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, and (v) long-chain alkylbenzyldimethylammonium salts; and even more preferably comprises decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, and It comprises one or more selected from the group consisting of thearyltrimethylammonium chloride, behenyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, and benzalkonium chloride, and more preferably one or more selected from the group consisting of decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, and benzalkonium chloride, and more preferably decyltrimethylammonium chloride, lauryltrimethylammonium chloride, dioctyldimethylammonium chloride,It comprises one or more selected from the group consisting of didecyldimethylammonium chloride, dilauryldimethylammonium chloride, and benzalkonium chloride, and more preferably one or more selected from the group consisting of dioctyldimethylammonium chloride and didecyldimethylammonium chloride. <3> ~ <6> A pest control composition comprising any one of the following: <8> The amine salt type cationic surfactant comprises one or more selected from the group consisting of (vii) long-chain alkyldimethylamine and its salts, (viii) long-chain alkoxyalkyldimethylamine and its salts, (ix) long-chain alkylamide alkyldimethylamine and its salts, (x) diethanolamine monofatty acid ester and its salts, (xi) triethanolamine monofatty acid ester and its salts, and (xii) triethanolamine difatty acid ester and its salts. <3> ~ <7> A pest control composition comprising any one of the following. <9> The number of carbon atoms in the long-chain alkyl group in (vii) long-chain alkyldimethylamine and its salt, the number of carbon atoms in the long-chain alkoxy group in (viii) long-chain alkoxyalkyldimethylamine and its salt, and the number of carbon atoms in the fatty acid in (x) diethanolamine monofatty acid ester and its salt, (xi) triethanolamine monofatty acid ester and its salt, and (xii) triethanolamine difatty acid ester and its salt are preferably 8 or more, more preferably 10 or more, and also preferably 22 or less, more preferably 18 or less, and even more preferably 16 or less. <8> A composition for controlling pests. <10> The number of carbon atoms in the long-chain alkyl group in (ix) long-chain alkylamide alkyldimethylamine and its salt is preferably 7 or more, more preferably 9 or more, and also preferably 21 or less, more preferably 17 or less, and even more preferably 15 or less. <8> A composition for controlling pests.

[0090] <11> The amine salt type cationic surfactant preferably comprises one or more selected from the group consisting of (vii) long-chain alkyldimethylamine and its salts, (viii) long-chain alkoxyalkyldimethylamine and its salts, and (ix) long-chain alkylamide alkyldimethylamine and its salts, more preferably comprising one or more selected from the group consisting of (vii) long-chain alkyldimethylamine and its salts, and (viii) long-chain alkoxyalkyldimethylamine and its salts, and even more preferably N,N-dimethyloctylamine, N,N-dimethyl dimethyl It comprises one or more selected from the group consisting of tildecylamine, N,N-dimethyllaurylamine, N,N-dimethyltetradecylamine, N,N-dimethylhexadecylamine, N,N-dimethylstearylamine, N-[3-(dimethylamino)propyl]octylamide, N-[3-(dimethylamino)propyl]decylamide, N-[3-(dimethylamino)propyl]lauramide, N-[3-(dimethylamino)propyl]palmitamide, N-[3-(dimethylamino)propyl]stearamide, and salts thereof. <3> ~ <10> A pest control composition comprising any one of the following. <12> The component (A) preferably comprises a quaternary ammonium salt type cationic surfactant, more preferably one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (iv) long-chain alkylamide alkyltrimethylammonium salt, (v) long-chain alkylbenzyldimethylammonium salt, and (vi) long-chain alkylpyridinium salt, even more preferably one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salt, (ii) long-chain alkoxyalkyltrimethylammonium salt, (iii) dilong-chain alkyldialkylammonium salt, (iv) long-chain alkylamide alkyltrimethylammonium salt, and (v) long-chain alkylbenzyldimethylammonium salt. The above are included, and more preferably one or more selected from the group consisting of (i) long-chain alkyltrialkylammonium salts, (iii) dilong-chain alkyldialkylammonium salts, and (v) long-chain alkylbenzyldimethylammonium salts, and more preferably one or more selected from the group consisting of octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, and benzalkonium chloride, and more preferably octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride,It comprises one or more selected from the group consisting of tetradecyltrimethylammonium chloride, cetyltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, ditetradecyldimethylammonium chloride, dicetyldimethylammonium chloride, and benzalkonium chloride, more preferably one or more selected from the group consisting of octyltrimethylammonium chloride, decyltrimethylammonium chloride, lauryltrimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dilauryldimethylammonium chloride, and benzalkonium chloride, and more preferably one or more selected from the group consisting of dioctyldimethylammonium chloride and didecyldimethylammonium chloride. <1> ~ <11> A pest control composition comprising any one of the following: <13> The aforementioned component (B) includes one or more selected from the group consisting of carboxybetaine-type amphoteric surfactants, sulfobetaine-type amphoteric surfactants, imidazolinium betaine-type amphoteric surfactants, and phosphobetaine-type amphoteric surfactants. <1> ~ <12> A pest control composition comprising any one of the following. <14> The carboxybetaine-type amphoteric surfactant comprises one or more selected from the group consisting of alkyldimethylaminoacetic acid betaine and fatty acid amidopropyl betaine, preferably fatty acid amidopropyl betaine. <13> A composition for controlling pests. <15> The number of carbon atoms in the alkyl group in the alkyldimethylaminoacetic acid betaine and the number of carbon atoms in the fatty acid in the fatty acid amidopropyl betaine are preferably 8 to 22, more preferably 10 to 18. <14> A composition for controlling pests. <16> The alkyldimethylaminoacetic acid betaine preferably comprises one or more selected from the group consisting of lauryldimethylaminoacetic acid betaine and stearyldimethylaminoacetic acid betaine. <14> or <15> A composition for controlling pests. <17> The fatty acid amidopropyl betaine preferably comprises one or more selected from the group consisting of lauramidopropyl betaine [lauramidopropyl betaine], stearamidopropyl betaine [stearamidopropyl betaine], palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine [cocamidopropyl betaine], more preferably comprises one or more selected from the group consisting of lauramidopropyl betaine, stearamidopropyl betaine, and coconut oil fatty acid amidopropyl betaine, and even more preferably comprises lauramidopropyl betaine. <14> or <15> A composition for controlling pests. <18> The sulfobetaine-type amphoteric surfactant comprises one or more selected from the group consisting of alkyl sulfobetaine and alkyl hydroxy sulfobetaine, preferably alkyl hydroxy sulfobetaine. <13> ~ <17> A pest control composition comprising any one of the following. <19> The number of carbon atoms in the alkyl sulfobetaine and alkyl hydroxy sulfobetaine is preferably 8 to 22, more preferably 10 to 18. <18> A composition for controlling pests. <20> The alkyl sulfobetaine preferably comprises one or more selected from the group consisting of lauryldimethylsulfoethyl betaine, lauryldimethylsulfopropyl betaine, myristyldimethylsulfoethyl betaine, myristyldimethylsulfopropyl betaine, stearyldimethylsulfoethyl betaine, stearyldimethylsulfopropyl betaine, and coconut oil fatty acid dimethylsulfopropyl betaine, and more preferably comprises one or more selected from the group consisting of lauryldimethylsulfoethyl betaine and lauryldimethylsulfopropyl betaine. <18> or <19> A composition for controlling pests.

[0091] <21> The alkylhydroxysulfobetaine preferably comprises one or more selected from the group consisting of lauryl(hydroxysulfoethyl)dimethylbetaine, lauryl(hydroxysulfopropyl)dimethylbetaine (also referred to as laurylhydroxysultaine or laurylhydroxysulfobetaine), myristyl(hydroxysulfoethyl)dimethylbetaine, myristyl(hydroxysulfopropyl)dimethylbetaine, and stearyl(hydroxysulfopropyl)dimethylbetaine, more preferably comprising one or more selected from the group consisting of lauryl(hydroxysulfoethyl)dimethylbetaine and lauryl(hydroxysulfopropyl)dimethylbetaine, and even more preferably comprising lauryl(hydroxysulfopropyl)dimethylbetaine. <18> ~ <20> A pest control composition comprising any one of the following. <22> The imidazolinium betaine-type amphoteric surfactant comprises an N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate salt. <13> ~ <21> A pest control composition comprising any one of the following. <23> The number of carbon atoms in the N-acyl group of the N-acylaminoethyl-N-2-hydroxyethylaminocarboxylate salt is preferably 8 to 22, more preferably 10 to 18. <22> A composition for controlling pests. <24> The imidazolinium betaine-type amphoteric surfactant preferably comprises one or more selected from the group consisting of N-coconut oil fatty acid acyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine [also called sodium cocoamphoacetate, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine], N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine [sodium cocoamphopropionate], and sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine [sodium lauroamphoacetate]. <13> ~ <23> A pest control composition comprising any one of the following. <25> The phosphobetaine-type amphoteric surfactant comprises an alkylphosphobetaine, wherein the number of carbon atoms in the alkyl group of the alkylphosphobetaine is preferably 8 to 22, more preferably 10 to 18. <13> ~ <24> A pest control composition comprising any one of the following. <26> The above component (B) preferably comprises one or more selected from the group consisting of carboxybetaine-type amphoteric surfactants and sulfobetaine-type amphoteric surfactants, more preferably comprises one or more selected from the group consisting of alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, alkyl sulfobetaine and alkyl hydroxysulfobetaine, even more preferably comprises one or more selected from the group consisting of fatty acid amidopropyl betaine and alkyl hydroxysulfobetaine, and even more preferably lauric acid amidopropyl betaine, stearic acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl (hydroxysulfoethyl)dimethyl betaine, lauryl ( It comprises one or more selected from the group consisting of hydroxysulfopropyl)dimethyl betaine, myristyl(hydroxysulfoethyl)dimethyl betaine, myristyl(hydroxysulfopropyl)dimethyl betaine, and stearyl(hydroxysulfopropyl)dimethyl betaine, more preferably one or more selected from the group consisting of lauric acid amidopropyl betaine, stearic acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl(hydroxysulfoethyl)dimethyl betaine, and lauryl(hydroxysulfopropyl)dimethyl betaine, and more preferably one or more selected from lauric acid amidopropyl betaine and lauryl(hydroxysulfopropyl)dimethyl betaine. <1> ~ <25> A pest control composition comprising any one of the following. <27> The content of component (A) in the aforementioned pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 3% by mass or less, even more preferably 0.03% by mass or more and 3% by mass or less, even more preferably 0.04% by mass or more and 2% by mass or less, even more preferably 0.05% by mass or more and 2% by mass or less, even more preferably 0.08% by mass or more and 1% by mass or less, even more preferably 0.1% by mass or more and 0.8% by mass or less, even more preferably 0.12% by mass or more and 0.8% by mass or less, even more preferably 0.15% by mass or more and 0.6% by mass or less, even more preferably 0.15% by mass or more and 0.5% by mass or less, even more preferably 0.15% by mass or more and 0.4% by mass or less, and even more preferably 0.15% by mass or more and 0.3% by mass or less. <1> ~ <26> A pest control composition comprising any one of the following. <28> The content of component (B) in the aforementioned pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 3% by mass or less, even more preferably 0.03% by mass or more and 2% by mass or less, even more preferably 0.04% by mass or more and 1% by mass or less, even more preferably 0.05% by mass or more and 0.8% by mass or less, even more preferably 0.08% by mass or more and 0.5% by mass or less, even more preferably 0.1% by mass or more and 0.5% by mass or less, even more preferably 0.12% by mass or more and 0.5% by mass or less, and even more preferably 0.15% by mass or more and 0.3% by mass or less. <1> ~ <27> A pest control composition comprising any one of the following. <29> The mass ratio of component (A) to component (B) in the pest control composition [(A) / (B)] is preferably 0.01 to 20, more preferably 0.1 to 15, even more preferably 0.2 to 15, even more preferably 0.4 to 10, even more preferably 0.5 to 5, even more preferably 0.6 to 3, even more preferably 0.8 to 2, even more preferably 0.8 to 1.5, and even more preferably 0.8 to 1.2. <1> ~ <28> A pest control composition comprising any one of the following. <30> The total content of component (A) and component (B) in the aforementioned pest control composition is preferably 0.02% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more and 8% by mass or less, even more preferably 0.1% by mass or more and 6% by mass or less, even more preferably 0.2% by mass or more and 5% by mass or less, even more preferably 0.3% by mass or more and 4% by mass or less, even more preferably 0.3% by mass or more and 2% by mass or less, even more preferably 0.3% by mass or more and 1.5% by mass or less, even more preferably 0.3% 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, and even more preferably 0.4% by mass or more and 0.6% by mass or less. <1> ~ <29> A pest control composition comprising any one of the following.

[0092] <31> The content of component (C) in the pest control composition is preferably 50% by mass or more and 99.98% by mass or less, more preferably 60% by mass or more and 99.98% by mass or less, even more preferably 70% by mass or more and 99.98% by mass or less, even more preferably 80% by mass or more and 99.9% by mass or less, even more preferably 85% by mass or more and 99.9% by mass or less, even more preferably 90% by mass or more and 99.8% by mass or less, even more preferably 95% by mass or more and 99.8% by mass or less, and even more preferably 98% by mass or more and 99.6% by mass or less. <1> ~ <30> A pest control composition comprising any one of the following. <32> The total content of components (A) to (C) in the aforementioned pest control composition is preferably 70% by mass or more, more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, even more preferably 98% by mass or more, and 100% by mass or less. <1> ~ <31> A pest control composition comprising any one of the following. <33> The mass ratio of the total amount of component (A) and component (B) to component (C) in the aforementioned pest control composition [{(A)+(B)} / (C)] is preferably 0.0002 or more and 0.23 or less, more preferably 0.0002 or more and 0.2 or less, more preferably 0.0005 or more and 0.17 or less, more preferably 0.0005 or more and 0.15 or less, more preferably 0.001 or more and 0.13 or less, more preferably 0.001 or more and 0.1 or less, more preferably 0.002 or more and 0.09 or less, more preferably 0.002 or more and 0.07 or less, more preferably 0.003 or more and 0.05 or less, more preferably 0.003 or more and 0.04 or less, more preferably 0.008 or more and 0.02 or less, and more preferably 0.008 or more and 0.015 or less. <1> ~ <32> A pest control composition comprising any one of the following.

[0093] <34> Furthermore, it contains a nonionic surfactant as component (D). <1> ~ <33> A pest control composition comprising any one of the following. <35> The aforementioned component (D) comprises one or more selected from the group consisting of polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, alkyl glucosides, alkyl glyceryl ethers, polyglycerin fatty acid esters, polyoxyethylene hydrogenated castor oil, and polyoxyethylene modified silicones, preferably one or more selected from the group consisting of polyoxyalkylene alkyl ethers and alkyl glyceryl ethers. <34> A composition for controlling pests. <36> The component (D) more preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether, poly(oxyethylene / oxypropylene) alkyl ether, polyoxypropylene alkyl ether, and alkyl glyceryl ether, even more preferably comprises one or more selected from the group consisting of polyoxyethylene alkyl ether, poly(oxyethylene / oxypropylene) alkyl ether, and alkyl glyceryl ether, even more preferably comprises polyoxyethylene alkyl ether, and even more preferably comprises polyoxyethylene lauryl ether having an average number of moles of ethylene oxide (EO) added preferably between 2 and 40, more preferably between 3 and 30, even more preferably between 5 and 20, and even more preferably between 5 and 15. <34> or <35> A composition for controlling pests. <37> The content of component (D) in the aforementioned pest control composition is preferably 0.01% by mass or more and 5% by mass or less, more preferably 0.02% by mass or more and 2% by mass or less, even more preferably 0.05% by mass or more and 1.5% by mass or less, even more preferably 0.08% by mass or more and 1% by mass or less, even more preferably 0.1% by mass or more and 0.8% by mass or less, and even more preferably 0.1% by mass or more and 0.6% by mass or less. <34> ~ <36> A pest control composition comprising any one of the following. <38> The mass ratio of component (D) to component (A) in the pest control composition [(D) / (A)] is preferably 0.1 to 10, more preferably 0.2 to 5, even more preferably 0.4 to 3, even more preferably 0.5 to 3, and even more preferably 0.8 to 3. <34> ~ <37> A pest control composition comprising any one of the following. <39> The total content of component (A) and component (D) in the aforementioned pest control composition is preferably 0.02% by mass or more and 15% by mass or less, more preferably 0.05% by mass or more and 10% by mass or less, even more preferably 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 1.5% by mass or less, and even more preferably 0.5% by mass or more and 1.2% by mass or less. <34> ~ <38> A pest control composition comprising any one of the following. <40> The mass ratio of the total amount of component (A) and component (D) to component (C) in the aforementioned pest control composition [{(A)+(D)} / (C)] is preferably 0.0002 or more and 0.3 or less, more preferably 0.0002 or more and 0.25 or less, more preferably 0.0002 or more and 0.2 or less, preferably 0.0005 or more and 0.17 or less, more preferably 0.0005 or more and 0.15 or less, more preferably 0.001 or more and 0.13 or less, more preferably 0.001 or more and 0.1 or less, more preferably 0.002 or more and 0.09 or less, more preferably 0.002 or more and 0.07 or less, more preferably 0.003 or more and 0.05 or less, more preferably 0.003 or more and 0.04 or less, more preferably 0.008 or more and 0.02 or less, and more preferably 0.008 or more and 0.015 or less. <34> ~ <39> A pest control composition comprising any one of the following.

[0094] <41> Furthermore, it contains fragrance as ingredient (E). <1> ~ <40> A pest control composition comprising any one of the following. <42> The content of component (E) in the aforementioned pest control composition 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. <41> A composition for controlling pests.

[0095] <43> Furthermore, it contains a pH adjuster. <1> ~ <42> A pest control composition comprising any one of the following. <44> The pH adjusting agent comprises one or more selected from the group consisting of alkali metal or alkaline earth metal hydroxides, alkali metal carbonates or bicarbonates, organic acids or their salts, inorganic acids or their salts, preferably one or more selected from the group consisting of alkali metal hydroxides, organic acids or their salts, and inorganic acids, more preferably one or more selected from the group consisting of alkali metal hydroxides, carboxylic acid compounds having 6 or fewer carbon atoms, sodium or potassium salts of carboxylic acid compounds having 6 or fewer carbon atoms, hydrochloric acid, and phosphoric acid, even more preferably one or more selected from the group consisting of potassium hydroxide, sodium hydroxide, malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, glycolic acid, lactic acid, glyceric acid, malic acid, tartaric acid, citric acid, gluconic acid, hydrochloric acid, and phosphoric acid, and even more preferably one or more selected from the group consisting of sodium hydroxide, lactic acid, malic acid, tartaric acid, citric acid, hydrochloric acid, and phosphoric acid. <43> A composition for controlling pests. <45> The content of the anionic surfactant in the aforementioned pest control composition is 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. <1> ~ <44> A pest control composition comprising any one of the following. <46> The content of the insecticidal component in the aforementioned pest control composition is 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. <1> ~ <45> A pest control composition comprising any one of the following. <47> The content of one or more volatile organic solvents selected from the group consisting of ethanol, 1-propanol, 2-propanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether in the aforementioned pest control composition is less than 20% by mass, preferably 15% by mass or less, more preferably 10% by mass or less, even more preferably 7% by mass or less, even more preferably 4% by mass or less, even more preferably 2% by mass or less, even more preferably 1% by mass or less, even more preferably 0.1% by mass or less, and even more preferably substantially 0% by mass. <1> ~ <46> A pest control composition comprising any one of the following. <48> The pH of the aforementioned pest control composition at 25°C is preferably 4 to 9, more preferably 4.5 to 9, even more preferably 5 to 8.5, even more preferably 5.5 to 8.5, even more preferably 5.5 to 8, and even more preferably 5.5 to 7.5. <1> ~ <47> A pest control composition comprising any one of the following. <49> The aforementioned pest control composition is a liquid formulation at 25°C. <1> ~ <48> A pest control composition comprising any one of the following. <50> Used by spraying, <1> ~ <49> A pest control composition comprising any one of the following. <51> <1> ~ <50> A pest control spray comprising filling the container of a sprayer with one of the following pest control compositions. <52> The sprayer has an extrusion structure. <51> A spray for controlling pests. <53> <1> ~ <50> A method for controlling pests, comprising the step of spraying one of the following pest control compositions and bringing the sprayed droplets into contact with pests. <54> The method of bringing the spray droplets of the aforementioned pest control composition into contact with pests includes a method of spraying the composition onto pests, or onto a space or object where pests are present. <53> Methods for controlling pests. <55> <1> ~ <50> Use of any one of the compositions described in this document as a pest control composition. [Examples]

[0096] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of these examples. In these examples, various evaluations and measurements were performed by the following methods.

[0097] (pH) The pH of the pest control composition was measured at 25°C using a pH meter (electrode: 6367-10D (manufactured by Horiba, Ltd.)).

[0098] (Mosquito knockdown performance (after 1 hour)) As shown in Figure 1, ten female Asian tiger mosquitoes were placed in an acrylic box (6 x 6 x 4 cm) covered on both sides with mesh cloth (nylon, 15D, mesh shape: hexagonal, mesh size: 1.5 mm). For each example, the pest control composition was sprayed once from a distance of 30 cm from the surface of the mesh cloth using a sprayer containing approximately 100 mL of the spray agent in the reservoir of a trigger-type sprayer (trigger type: pressurized, capacity 370 mL, nozzle diameter: 0.8 mm, discharge amount: 0.9 g / shot). "Single spray" means spraying by pulling the trigger of the trigger-type sprayer in a full stroke once. If an Asian tiger mosquito fell over on its back or side and was unable to maintain flight after lightly tapping the acrylic box, it was recorded as knocked down. The number of knocked-down Aedes albopictus mosquitoes was counted one hour after spraying the composition, and the knock-down rate was calculated as (number of knocked-down mosquitoes) / 10 × 100 (%), as shown in Tables 1-3.

[0099] (Odor) Each example of a pest control composition was filled into a standard bottle No. 6 (capacity 55 mL). Panelists checked the odor of the composition at the opening of the standard bottle and evaluated it according to the following criteria. A: No unpleasant odor (amine odor) C: Unpleasant odor (amine odor) present.

[0100] (Drying time) Each example of the pest control composition was filled into a Maruemu Co., Ltd. "PP Spray Vial No. 6". An Indonesian ceramic tile (size: 45cm x 45cm, surface water contact angle: approximately 40°) was placed on the floor, and one push (approximately 0.08g) of the composition was sprayed onto the tile surface from a spray nozzle located 15cm vertically above the tile surface. The mixture was left to stand at 25°C and 50% RH, and the time until the sprayed composition stopped volatilizing was visually observed and is shown in Tables 1-3 as drying time (minutes). A smaller value indicates a faster drying rate of the composition.

[0101] (Difference in drying time) In each table, the difference in drying time from the aforementioned drying time to that of a comparative example containing only the corresponding component (A) was calculated and is shown in Tables 1-3. A smaller value indicates a greater reduction in drying time.

[0102] Examples 1-11, Comparative Examples 1-9 (Preparation and Evaluation of Pest Control Compositions) The components other than the pH adjusters shown in Tables 1-3 were mixed using a stirrer. Then, for compositions containing pH adjusters, the pH adjusters listed in the table were added and mixed to prepare pest control compositions. The component amounts listed in Tables 1-3 represent the amount of active ingredient (mass%) for each component. The obtained compositions were evaluated using the method described above. The evaluation results are shown in Tables 1-3.

[0103] [Table 1]

[0104] [Table 2]

[0105] [Table 3]

[0106] The ingredients listed in the table are as follows: <Component (A): Cationic surfactant> • Lauryltrimethylammonium chloride: Manufactured by Tokyo Chemical Industry Co., Ltd. • Dioctyldimethylammonium chloride: QUARTAMIN D08W (manufactured by Kao Corporation) Didecyldimethylammonium chloride: Manufactured by Tokyo Chemical Industry Co., Ltd. • Benzyl-(C12-16) alkyldimethyl chloride: SANIZOL C (manufactured by Kao Corporation)

[0107] <Component (B): Betaine-type amphoteric surfactant> • Lauryl (2-hydroxy-3-sulfopropyl)dimethylbetaine: AMPHITOL 20HD (manufactured by Kao Corporation) • Lauric acid amidopropyl betaine: AMPHITOL 20AB (manufactured by Kao Corporation)

[0108] <Ingredient (D): Nonionic surfactant> • Polyoxyethylene (9) lauryl ether: EMULGEN 109P (manufactured by Kao Corporation)

[0109] Tables 1-3 show that the pest control composition of the present invention has high mosquito knockdown performance, a short drying time, and low unpleasant odor.

[0110] Furthermore, this embodiment discloses the following formulation examples. Components (A) to (D) listed in Tables 4 to 9 are the same as described above. Component (E) listed in Tables 4 to 9 is either the fragrance disclosed in Table 10 or the fragrance composition disclosed in Table 11.

[0111] [Table 4]

[0112] [Table 5]

[0113] [Table 6]

[0114] [Table 7]

[0115] [Table 8]

[0116] [Table 9]

[0117] [Table 10]

[0118] [Table 11] [Industrial applicability]

[0119] According to the present invention, it is possible to provide a pest control composition that dries quickly, has little unpleasant odor, and has excellent pest knockdown performance.< / ph>

Claims

1. Component (A): One or more quaternary ammonium salt type cationic surfactants selected from the group consisting of long-chain alkyltrimethylammonium salts, dilong-chain alkyldimethylammonium salts, and long-chain alkylbenzyldimethylammonium salts. Component (B): One or more surfactants selected from the group consisting of carboxybetaine-type amphoteric surfactants, sulfobetaine-type amphoteric surfactants, and imidazolinium betaine-type amphoteric surfactants, and Component (C): water, A pest control composition containing the above, wherein the pH of the composition at 25°C is 3.5 or higher and 9.5 or lower.

2. The pest control composition according to claim 1, wherein the mass ratio of component (B) to component (A) in the composition [(A) / (B)] is 0.01 or more and 20 or less.

3. The pest control composition according to claim 1, further comprising a nonionic surfactant as component (D).

4. The pest control composition according to claim 1, wherein the content of component (A) in the composition is 0.01% by mass or more and 5% by mass or less.

5. The pest control composition according to claim 1, wherein the content of component (B) in the composition is 0.01% by mass or more and 5% by mass or less.

6. The pest control composition according to claim 1, wherein the content of the anionic surfactant is less than 1% by mass.

7. The pest control composition according to Claim 1, wherein the content of the insecticidal component is less than 1% by mass.

8. The pest control composition according to claim 1, wherein the content of volatile organic solvents is less than 20% by mass.

9. A pest control spray comprising filling the containment section of a sprayer with the pest control composition described in any one of claims 1 to 8.

10. The insecticide spray according to claim 9, wherein the sprayer has an extrusion structure.

11. A method for controlling pests, comprising the step of spraying a pest control composition according to any one of claims 1 to 8 and bringing the sprayed droplets into contact with pests.

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