Pest control methods

Abstract

To provide a pest control method with excellent pest control effectiveness. [Solution] A method for controlling pests, comprising the steps of immersing a liquid-absorbing wick in a composition containing a pyrethroid compound and a solvent, and indirectly heating the composition absorbed through the liquid-absorbing wick by a heating unit to vaporize the pyrethroid compound.

Description

[Technical Field]

[0001] The present invention relates to a method for controlling pests. [Background technology]

[0002] Pyrethroid compounds have traditionally been widely used to control a wide variety of pests, including mosquitoes, flies, and cockroaches (see, for example, Patent Documents 1-3). However, due to the instability of their chemical structure, pyrethroid compounds may sometimes exhibit reduced pest control efficacy. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2000-063329 [Patent Document 2] Japanese Patent Publication No. 2001-011022 [Patent Document 3] International Publication No. 2022 / 220294 [Overview of the project] [Problems that the invention aims to solve]

[0004] The object of this invention is to provide an excellent method for controlling pests. [Means for solving the problem]

[0005] The inventors of the present invention conducted research to find a composition with excellent pest control effects and found that a composition containing a pyrethroid compound and a solvent exhibits excellent pest control effects when evaporated by heating in a predetermined manner, thus completing the present invention.

[0006] The present invention includes the following [1]. [1] A pest control method (hereinafter sometimes referred to as the method of the present invention) comprising a step of immersing a liquid-absorbing core in a composition containing a pyrethroid compound and a solvent and indirectly heating the composition sucked up through the liquid-absorbing core by a heating part to evaporate the pyrethroid compound.

Effect of the Invention

[0007] The pest control method of the present invention shows an excellent control effect against pests.

Brief Description of the Drawings

[0008] [Figure 1] Figure 1 is a cross-sectional view of a heating evaporation type insecticidal device using a chemical liquid bottle.

Embodiments for Carrying Out the Invention

[0009] In the method of the present invention, a composition containing a pyrethroid compound and a solvent (hereinafter sometimes referred to as the present composition) is used.

[0010] In this specification, "pyrethroid" is typically a general term for natural pyrethrins obtained by extracting from pyrethrum (Tanacetum cinerariifolium or Chrysanthemum cinerariaefolium) and derivatives of artificially synthesized pyrethrins. Therefore, in this specification, "pyrethroid" or "pyrethroid compound" shall refer to either natural pyrethrin or synthetic pyrethroid, or both natural pyrethrin and synthetic pyrethroid.

[0011] <Natural Pyrethrin> The natural pyrethrin used in this invention (hereinafter sometimes referred to as P1) contains six compounds as active ingredients: Pyrethrin I, Pyrethrin II, Cinerin I, Cinerin II, Jasmoline I, and Jasmoline II. Natural pyrethrin can typically be obtained as an extract or dried pyrethrin powder obtained by extracting the active ingredients from a powder obtained by collecting only the calyx of the flower of chrysanthemum (Tanacetum cinerariifolium or Chrysanthemum cinerariaefolium), drying and grinding it, and then using a suitable solvent (also called a solvent), such as an organic solvent like methanol. In addition to the six compounds mentioned above, natural pyrethrin may also contain plant-derived impurities (such as fatty acids and flavonoids).In addition to the aforementioned Chrysanthemum cinerariaefolium, other plants from which natural pyrethrins can be obtained include Calendula officinalis, Chrysanthemum coccinum, Tagetes erecta, Tagetes minuta, Zinnia elegans, and Zinnia linnearis (References 1: Adnane. H. Alain, C. & Chantal, B. 2000. The Production of Pyrethrins by Plant Cell and Tissue Cultures of Chrysanthemum cinerariaefolium and Tagetes Species. Critical Reviews in Plant Sciences, 19(1):69-89; Reference 2: Kudakasseril, GJ and Staba, EJ 1988. Insecticidal phytochemicals. In: Cell Culture and Somatic Cell Genetics of Plants. pp. 537-552. Constabel, F. and Vasil, IK, Eds., Academic Press, New York, Reference 3: John E. Casida, Gary B. Quistad. 1995. PYRETHRUM FLOWERS, Production, Chemistry, Toxicology, and Uses. pp. 123-125, Oxford University Press.).

[0012] The plant species and varieties that serve as the source of natural pyrethrins used in this invention are not limited to those mentioned above. The cultivation methods, cultivation conditions (weather, origin, soil type, etc.), harvest time, harvest part, harvesting method, washing method, extraction method, and purification method of the plants are not particularly limited. Natural pyrethrins used in this invention also include, for example, natural pyrethrins obtained using a vector into which a gene encoding a pyrethrin biosynthesis enzyme is incorporated.

[0013] The mass ratios of the six compounds used in the natural pyrethrins of the present invention—pyrethrin I, pyrethrin II, synerin I, synerin II, jasmolin I, and jasmolin II—are not particularly limited. Any mass ratio can be set for each compound in the range of 0.001 to 99% by mass relative to the total amount of natural pyrethrins. Typically, however, the natural pyrethrins are contained in the following mass ratios: pyrethrin I at 10 to 70% by mass, pyrethrin II at 10 to 70% by mass, synerin I at 1 to 20% by mass, synerin II at 1 to 20% by mass, jasmolin I at 1 to 20% by mass, and jasmolin II at 1 to 20% by mass, relative to the total amount of natural pyrethrins. As a specific example of a mixing ratio (mass ratio), [Pyrethrin I: Synerin I: Jasmolin I: Pyrethrin II: Synerin II: Jasmolin II] = 38.0:7.3:4.0:35.0:11.7:4.0 (Reference 3).

[0014] Examples of natural pyrethrins used in the present invention include pyrethrin I (total amount of pyrethrin I, synerin I, and jasmolin I) and pyrethrin II (total amount of pyrethrin II, synerin II, and jasmolin II), with pyrethrin I at 20-40% by mass and pyrethrin II at 12-31% by mass relative to the total amount of natural pyrethrin. The total amount of pyrethrin I and pyrethrin II in the natural pyrethrin is usually 10-99% by mass, preferably 15-90% by mass, and more preferably 20-85% by mass, relative to the total amount of natural pyrethrin.

[0015] <Synthetic pyrethroid> In this specification, "synthetic pyrethroid" refers to a concept that excludes natural pyrethrins from the aforementioned pyrethroids. That is, in this specification, "synthetic pyrethroid" does not include the six compounds that are natural pyrethrins: Pyrethrin I, Pyrethrin II, Cinerin I, Cinerin II, Jasmoline I, and Jasmoline II.

[0016] In this specification, synthetic pyrethroid compounds include, for example, acrinatrin (hereinafter sometimes referred to as P2), allethrin (hereinafter sometimes referred to as P3), d-allethrin (hereinafter sometimes referred to as P4), dd-allethrin (hereinafter sometimes referred to as P5), beta-cyfluthrin (hereinafter sometimes referred to as P6), bifenthrin (hereinafter sometimes referred to as P7), cycloprothrin (hereinafter sometimes referred to as P8), cyfluthrin (hereinafter sometimes referred to as P9), and cyhalothrin (hereinafter sometimes referred to as P10). (May be listed), cypermethrin (hereinafter sometimes referred to as P11), dimefluthrin (hereinafter sometimes referred to as P12), empenthrin (hereinafter sometimes referred to as P13), deltamethrin (hereinafter sometimes referred to as P14), teralethrin (hereinafter sometimes referred to as P15), esfenvalerate (hereinafter sometimes referred to as P16), etofenprox (hereinafter sometimes referred to as P17), fenpropathrin (hereinafter sometimes referred to as P18), fenvalerate (hereinafter sometimes referred to as P19) (There is), flucitrinate (hereinafter sometimes referred to as P20), flufenprox (hereinafter sometimes referred to as P21), flumetrin (hereinafter sometimes referred to as P22), fluvalinate (hereinafter sometimes referred to as P23), profluthrin (hereinafter sometimes referred to as P24), halfenprox (hereinafter sometimes referred to as P25), heptafluthrin (hereinafter sometimes referred to as P26), imiprothrin (hereinafter sometimes referred to as P27), permethrin (hereinafter sometimes referred to as P28), mepa Fluthrin (hereafter sometimes referred to as P29), benfluthrin (hereafter sometimes referred to as P30), prallethrin (hereafter sometimes referred to as P31), renofluthrin (hereafter sometimes referred to as P32), resmethrin (hereafter sometimes referred to as P33), d-resmethrin (hereafter sometimes referred to as P34), sigma-cypermethrin (hereafter sometimes referred to as P35), silafluofen (hereafter sometimes referred to as P36), tefluthrin (hereafter sometimes referred to as P37), tralomethrin (hereafter,(Sometimes referred to as P38), transfluthrin (hereafter sometimes referred to as P39), tetramethrin (hereafter sometimes referred to as P40), d-tetramethrin (hereafter sometimes referred to as P41), phenothrin (hereafter sometimes referred to as P42), d-phenothrin (hereafter sometimes referred to as P43), cyphenothrin (hereafter sometimes referred to as P44), alpha-cypermethrin (hereafter sometimes referred to as P45), zeta-cypermethrin (hereafter sometimes referred to as P46) Examples include lambda-cyhalothrin (hereinafter sometimes referred to as P47), gamma-cyhalothrin (hereinafter sometimes referred to as P48), flamethrin (hereinafter sometimes referred to as P49), taufluvalinate (hereinafter sometimes referred to as P50), teflumethrin (hereinafter sometimes referred to as P51), tetramethylfluthrin (hereinafter sometimes referred to as P52), metofluthrin (hereinafter sometimes referred to as P53), and monfluorothrin (hereinafter sometimes referred to as P54).

[0017] These synthetic pyrethroid compounds can be used individually or in combination of two or more. Furthermore, while some synthetic pyrethroid compounds exist as optical isomers, stereoisomers, or geometric isomers, the synthetic pyrethroid compounds of the present invention include isomers and mixtures thereof.

[0018] Synthetic pyrethroid compounds can be obtained commercially, or manufactured and obtained by methods known on their own or by a combination of methods known on their own.

[0019] One embodiment of the present invention is a composition comprising a natural pyrethrin and a synthetic pyrethroid compound as the pyrethroid compound. In this embodiment, a natural pyrethrin and one synthetic pyrethroid compound may be used, or a combination of a natural pyrethrin and two or more synthetic pyrethroid compounds may be used. Another embodiment of the present invention is a composition comprising natural pyrethrin as the pyrethroid compound, and substantially free of synthetic pyrethroid compounds. Here, "substantially free of synthetic pyrethroid compounds" means that the content of synthetic pyrethroid compounds is less than 1% by mass relative to the total amount of natural pyrethrin. Another embodiment of the present invention is a composition comprising a synthetic pyrethroid compound as the pyrethroid compound, and substantially free of natural pyrethrins. Here, "substantially free of natural pyrethrins" means that the content of a compound selected from natural pyrethrins, namely Pyrethrin I, Pyrethrin II, Cinerin I, Cinerin II, Jasmoline I, and Jasmoline II, relative to the total amount of synthetic pyrethroid compounds is less than 1% by mass. In this embodiment, one synthetic pyrethroid compound may be used, or two or more synthetic pyrethroid compounds may be used in combination.

[0020] The content of the pyrethroid compound in this composition can be appropriately set depending on the type of pyrethroid compound used. The content of the pyrethroid compound in this composition is preferably 0.1 to 4.0% by mass, more preferably 0.15 to 3.0% by mass, relative to the total amount of the composition. Even more preferably, it is 0.15 to 2.0% by mass. Specific pyrethroid compound content values ​​include: 0.1% by mass, 0.2% by mass, 0.3% by mass, 0.4% by mass, 0.5% by mass, 0.6% by mass, 0.7% by mass, 0.8% by mass, 0.9% by mass, 1.0% by mass, 1.1% by mass, 1.2% by mass, 1.3% by mass, 1.4% by mass, 1.5% by mass, 1.6% by mass, 1.7% by mass, 1.8% by mass, and 1.9% by mass. The following are examples: 2.0 mass%, 2.1 mass%, 2.2 mass%, 2.3 mass%, 2.4 mass%, 2.5 mass%, 2.6 mass%, 2.7 mass%, 2.8 mass%, 2.9 mass%, 3.0 mass%, 3.1 mass%, 3.2 mass%, 3.3 mass%, 3.4 mass%, 3.5 mass%, 3.6 mass%, 3.7 mass%, 3.8 mass%, 3.9 mass%, and 4.0 mass%. These contents can also be expressed as "approximately." "Approximately" means plus or minus 10%, for example, "approximately 1 mass%" is between 0.9 mass% and 1.1 mass%.

[0021] <Radical chain inhibitor> This composition may contain a radical chain inhibitor. The radical chain inhibitors that can be used in this invention are described below. In this invention, a radical chain inhibitor means a compound that reacts with free radicals to produce stable molecules, thereby stopping a chain reaction caused by free radicals. Examples of radical chain inhibitors include dibutylhydroxytoluene (hereinafter sometimes abbreviated as BHT) and butylhydroxyanisole (hereinafter sometimes abbreviated as BHA). BHT is preferred among these. BHT and BHA may also be used in combination. BHT and BHA are commercially available, for example, from Kanto Chemical Co., Ltd. If the composition contains a radical chain inhibitor, its content is preferably 0.1 to 10% by mass, more preferably 0.2 to 8.0% by mass, and even more preferably 0.25 to 6.0% by mass, relative to the total amount of the composition. Specific radical chain inhibitor contentes include 0.15% by mass, 0.2% by mass, 0.3% by mass, 0.4% by mass, 0.5% by mass, 0.6% by mass, 0.7% by mass, 0.8% by mass, 0.9% by mass, 1.0% by mass, 2.0% by mass, 3.0% by mass, 4.0% by mass, 5.0% by mass, 6.0% by mass, 7.0% by mass, 8.0% by mass, and 9.0% by mass.

[0022] When this composition contains a radical chain inhibitor, the mass ratio of the pyrethroid compound to the radical chain inhibitor is preferably 1:0.01 to 1:100, more preferably 1:0.1 to 1:34, even more preferably 1:0.17 to 1:21, and particularly preferably 1:0.3 to 1:10. Specific mass ratios include 1:0.02, 1:0.03, 1:0.04, 1:0.05, 1:0.06, 1:0.07, 1:0.08, 1:0.09, 1:0.2, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1: The following are examples of mass ratios: 14, 1:15, 1:16, 1:17, 1:18, 1:19, 1:20, 1:21, 1:22, 1:23, 1:24, 1:25, 1:26, 1:27, 1:28, 1:29, 1:30, 1:31, 1:32, 1:33, 1:35, 1:40, 1:45, 1:50, 1:55, 1:60, 1:65, 1:70, 1:75, 1:80, 1:85, 1:90, and 1:95. These mass ratios can also be expressed as "approximately." "Approximately" means plus or minus 10%, so for example, "approximately 1:2" means 1:1.8 to 1:2.2.

[0023] <Peroxide decomposer> This composition may contain a peroxide decomposing agent. The peroxide decomposing agents that can be used in this invention are described below. In this invention, a peroxide decomposing agent means a compound that decomposes peroxides and converts them into more stable compounds. Peroxide decomposing agents include phosphorus-based antioxidants and sulfur-based antioxidants. A phosphorus-based antioxidant can be suitably used as the peroxide decomposing agent. Furthermore, a phosphorus-based antioxidant having a phenyl group can be suitably used as the peroxide decomposing agent. In addition, multiple peroxide decomposing agents may be used in combination. Specific peroxide decomposing agents include, for example, triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, diphenyl mono(tridecyl) phosphite, triisodecyl phosphite, tristearyl phosphite, 3,9-bis(isodecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane, and 3,9-bis(isotridecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane. Among these, triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, and di-n-decylphenyl phosphite are preferred, with triphenyl phosphite being more preferred. Triphenyl phosphite (CAS registry number: 101-02-0) is commercially available, for example, as triphenyl phosphite (manufactured by Tokyo Chemical Industry Co., Ltd.) or ADEKA stub TPP (manufactured by ADEKA). Tetraphenyldipropylene glycol diphosphite (CAS Registry Number: 80584-85-6) is commercially available, for example, under the trade name JPP-100 (manufactured by Johoku Chemical Industry Co., Ltd.). Diphenyl mono(2-ethylhexyl) phosphite (CAS registry number: 15647-08-2) is commercially available, for example, under the trade name JPM-308 (manufactured by Johoku Chemical Industry Co., Ltd.). Di-n-decylphenyl phosphite (CAS Registry Number: 1254-78-0) is commercially available from many suppliers (e.g., Shaanxi Dideu Medichem). Diphenyl mono(tridecyl) phosphite (CAS registry number: 60628-17-3) is commercially available, for example, under the trade name JPM-313 (manufactured by Johoku Chemical Industry Co., Ltd.). Triisodecyl phosphite (CAS registry number: 25448-25-3) is commercially available, for example, as ADEKA Stab 3010 (manufactured by ADEKA). Tristearyl phosphite (CAS registry number: 2082-80-6) is commercially available, for example, as JP-318E (manufactured by Johoku Chemical Industry Co., Ltd.). 3,9-Bis(isodecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (CAS registry number: 26544-27-4) is commercially available, for example, as JPE-10 (manufactured by Johoku Chemical Industry Co., Ltd.). 3,9-Bis(isotridecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (CAS registry number: 69439-68-5) is commercially available, for example, as JPE-13R (manufactured by Johoku Chemical Industry Co., Ltd.). If the composition contains a peroxide decomposing agent, its content is preferably 0.01 to 5.0% by mass, more preferably 0.1 to 2.0% by mass, even more preferably 0.2 to 1.0% by mass, and particularly preferably 0.2 to 0.6% by mass, relative to the total amount of the composition. Specific contents of the peroxide decomposer include 0.01% by mass, 0.02% by mass, 0.03% by mass, 0.04% by mass, 0.05% by mass, 0.06% by mass, 0.07% by mass, 0.08% by mass, 0.09% by mass, 0.1% by mass, 0.2% by mass, 0.3% by mass, 0.4% by mass, 0.5% by mass, 0.6% by mass. Examples include mass%, 0.7 mass%, 0.8 mass%, 0.9 mass%, 1.0 mass%, 1.1 mass%, 1.2 mass%, 1.3 mass%, 1.4 mass%, 1.5 mass%, 1.6 mass%, 1.7 mass%, 1.8 mass%, 1.9 mass%, 2.0 mass%, 3.0 mass%, 4.0 mass%, and 5.0 mass%. These are some examples.

[0024] When the composition contains a peroxide decomposing agent, the mass ratio of the pyrethroid compound to the peroxide decomposing agent is preferably 1:0.01 to 1:20, more preferably 1:0.05 to 1:7, even more preferably 1:0.1 to 1:2.5, and particularly preferably 1:0.1 to 1:1. Specific mass ratios include 1:0.01, 1:0.02, 1:0.03, 1:0.04, 1:0.05, 1:0.06, 1:0.07, 1:0.08, 1:0.09, 1:0.1, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19, and 1:20.

[0025] When this composition contains a radical chain inhibitor and a peroxide decomposer, the mass ratio of the radical chain inhibitor to the peroxide decomposer is preferably 1:0.001 to 1:50, more preferably 1:0.01 to 1:8, even more preferably 1:0.02 to 1:4, and particularly preferably 1:0.03 to 1:2. Specific mass ratios include 1:0.001, 1:0.002, 1:0.003, 1:0.004, 1:0.005, 1:0.006, 1:0.007, 1:0.008, 1:0.009, 1:0.01, 1:0.02, 1:0.03, 1:0.04, 1:0.05, 1:0.06, 1:0.07, 1:0.08, 1:0.09, 1 The following values ​​can be listed: 0.1, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:1.5, 1:2.5, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:15, 1:20, 1:25, 1:30, 1:35, 1:40, 1:45, and 1:50.

[0026] <Solvent> This composition contains a solvent. The solvent used in this invention will be described below. As the solvent (also called a solvent), an oily solvent or an aqueous solvent is used. When using an oily solvent, an oily solvent with a boiling point of 350°C or lower is usually used. Various organic solvents, mainly hydrocarbon solvents, can be used as such oily solvents, but aliphatic hydrocarbon solvents (paraffinic solvents or unsaturated aliphatic hydrocarbon solvents, or mixtures thereof) with a boiling point range of 150 to 350°C are particularly preferred. Examples of such solvents include paraffinic solvents such as n-paraffin and isoparaffin; deodorizing kerosene; and sewing machine oil (e.g., Sewing Lube (manufactured by ENEOS Corporation)), with paraffinic solvents being the most preferred among them. Examples of paraffinic solvents include, for example, Solvent No. 0 H (manufactured by ENEOS Corporation), Solvent No. 0 M (manufactured by ENEOS Corporation), Solvent No. 0 L (manufactured by ENEOS Corporation), IP Solvent 2028 (manufactured by Idemitsu Kosan Co., Ltd.), Norper 12 (manufactured by ExxonMobil Corporation), Norper 13 (manufactured by ExxonMobil Chemicals Ltd.), Norper 15 (manufactured by ExxonMobil Corporation), Isopar M (manufactured by ExxonMobil Corporation), Isopar L (manufactured by ExxonMobil Corporation), Isopar V (manufactured by ExxonMobil Corporation), Isopar G (manufactured by ExxonMobil Corporation), Exsol D80 (manufactured by ExxonMobil Corporation), Exsol D110 (manufactured by ExxonMobil Corporation), Exsol D130 (manufactured by ExxonMobil Corporation), dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, and octadecane. Examples of organic solvents other than the hydrocarbon solvents mentioned above include glycerin, propylene glycol, methanol, acetone, xylene, chlorcene, isopropanol, and chloroform. The aforementioned solvents can be used individually or in combination of two or more types. The solvent may further contain an auxiliary solvent (also called an auxiliary solvent), and examples of auxiliary solvents include diisopropyl adipate, diisobutyl adipate, dibutyl adipate, bis(2-ethylhexyl) adipate, diisononyl adipate, diisodecyl adipate, dioctyl adipate, isopropyl myristate, hexyl laurate, isopropyl palmitate, triethylacetyl citrate, tributylacetyl citrate, triethyl citrate, diethyl phthalate, dibutyl phthalate, diisononyl phthalate, diethyl malonate, isopropanol, benzyl acetate, ethanol, sucrose fatty acid ester, sorbitan fatty acid ester, propylene carbonate, 1,3-butylene glycol, polyoxyethylene hydrogenated castor oil, etc. A different solvent from the solvent used may be selected as the auxiliary solvent. For example, when a paraffinic solvent is used as the solvent, diisopropyl adipate or isopropyl myristate is preferred as the auxiliary solvent. The auxiliary solvent can be used alone in addition to one type of solvent, or two or more types can be used in combination. In addition, the auxiliary solvent can be used alone in addition to two or more types of solvents, or two or more types can be used in combination.

[0027] The solvent content in this composition (including the amount of auxiliary solvent, if any) is preferably 50 to 99.9% by mass, more preferably 60 to 99.5% by mass, and even more preferably 70 to 99% by mass, based on the total amount of the composition. Specific solvent content (including the amount of auxiliary solvent, if any) is 50% by mass, 51% by mass, 52% by mass, 53% by mass, 54% by mass, 55% by mass, 56% by mass, 57% by mass, 58% by mass, 59% by mass, 60% by mass, 61% by mass, 62% by mass, 63% by mass, 64% by mass, 65% by mass, 66% by mass, 67% by mass, 68% by mass, 69% by mass, 70% by mass, 71% by mass, 72% by mass. Mass%, 73% by mass, 74% by mass, 75% by mass, 76% by mass, 77% by mass, 78% by mass, 79% by mass, 80% by mass, 81% by mass, 82% by mass, 83% by mass, 84% by mass, 85% by mass, 86% by mass %, 87% by mass, 88% by mass, 89% by mass, 90% by mass, 91% by mass, 92% by mass, 93% by mass, 94% by mass, 95% by mass, 96% by mass, 97% by mass, 98% by mass, and 99% by mass. If the composition further contains an auxiliary solvent, the content of the auxiliary solvent is preferably 1 to 50% by mass, more preferably 5 to 35% by mass, even more preferably 10 to 30% by mass, and particularly preferably 10 to 20% by mass, relative to the total amount of the composition. Specific auxiliary solvent content amounts include 1% by mass, 2% by mass, 3% by mass, 4% by mass, 5% by mass, 6% by mass, 7% by mass, 8% by mass, 9% by mass, 10% by mass, 11% by mass, 12% by mass, 13% by mass, 14% by mass, 15% by mass, 16% by mass, 17% by mass, 18% by mass, 19% by mass, 20% by mass, 21% by mass, 22% by mass, 23% by mass, 24% by mass, and 25% by mass. Examples include 26% by mass, 27% by mass, 28% by mass, 29% by mass, 30% by mass, 31% by mass, 32% by mass, 33% by mass, 34% by mass, 35% by mass, 36% by mass, 37% by mass, 38% by mass, 39% by mass, 40% by mass, 41% by mass, 42% by mass, 43% by mass, 44% by mass, 45% by mass, 46% by mass, 47% by mass, 48% by mass, 49% by mass, and 50% by mass. If the composition further contains an auxiliary solvent, the content of the solvent excluding the auxiliary solvent is preferably 51 to 94% by mass, more preferably 60 to 89% by mass, and particularly preferably 72 to 88% by mass, based on the total amount of the composition. The content of solvents excluding specific auxiliary solvents is 52% by mass, 53% by mass, 54% by mass, 55% by mass, 56% by mass, 57% by mass, 58% by mass, 59% by mass, 60% by mass, 61% by mass, 62% by mass, 63% by mass, 64% by mass, 65% by mass, 66% by mass, 67% by mass, 68% by mass, 69% by mass, 70% by mass, 71% by mass. %, 72 mass%, 73 mass%, 74 mass%, 75 mass%, 76 mass%, 77 mass%, 78 mass%, 79 mass%, 80 mass%, 81 mass%, 82 mass%, 83 mass%, 84 mass%, 85 mass%, 86 mass%, 87 mass%, 88 mass%, 89 mass%, 90 mass%, 91 mass%, 92 mass%, 93 mass%.

[0028] This composition may also contain other formulation aids, such as other insecticidal active ingredients, repellents, thickeners, surfactants, stabilizers, preservatives, plant essential oils, efficacy enhancers (also called synergists), and fragrances, to the extent that they do not impair the effects of the present invention.

[0029] This composition may further contain plant essential oils. Examples of such plant essential oils include citronella oil, lavender oil, peppermint oil, jasmine oil, neroli oil, bergamot oil, orange oil, geranium oil, petitgrain oil, lemon oil, lemongrass oil, cinnamon oil, eucalyptus oil, lemon eucalyptus oil, thyme oil, peppermint oil, cassia oil, grapefruit oil, clove oil, cedarwood oil, cinnamon leaf oil, thyme white oil, hinoki oil, pimento oil, fennel oil, penny royal oil, and rue oil.

[0030] This composition may further contain a repellent. Such repellents include plant-derived repellents and synthetic repellents. Examples of plant-derived repellents include citronellol, geraniol, linalool, menthol, menthone, menthyl acetate, 1,8-cineole, terpineol, dihydromyrcenolate, borneol, nerol, ethyllinalool, thymol, eugenol, benzyl benzoate, cinnamyl formate, geranyl formate, limonene, carvone, pulegone, camphor, damascone, citral, neral, perial hydrate, phenylethyl alcohol, and diphenyl oxide. Synthetic repellents include dimethyl phthalate, 2,3,4,5-bis(Δ2-butylene)-tetrahydrofuran, 2,3,4,5-bis-(Δ2-butylene)-tetrahydrofurfuryl alcohol, N,N-diethyl-m-toluamide (DEET), caprylic acid diethylamide, 2,3,4,5-bis-(Δ2-butylene)-tetrahydrofurfural, dipropyl-isocincomelonate, secondary butyl styryl ketone, nonyl styryl ketone, N-propylacetetoanilide, 2- Examples include ethyl-1,3-hexanediol, di-n-butersuccinate, 2-butoxyethyl-2-furfridene acetate, dibutyl phthalate, tetrahydrothiophene, β-naphthol, diallyl disulfide, bis(dimethylthiocarbamoyl) disulfide, p-dichlorobenzene, karan-3,4diol, 1-methylpropyl 2-(2-hydroxyethyl)-1-piperidine carboxylate, p-menthen-3,8diol, eucalyptol, and guanidine.

[0031] This composition may further contain an efficacy enhancer. Examples of such efficacy enhancers include piperonyl butoxide, N-propyl isome, MGK-264, cinepillin 222, cinepillin 500, lysene 384, IBTA, IBTE, S421, and the like.

[0032] This composition may further contain fragrances. Such fragrances include natural fragrances and artificial fragrances. Examples of natural fragrances include musk, citronella, lilac, abies oil, ajokun oil, almond oil, angelica root oil, peyle oil, bergamot oil, perch oil, boa rose oil, sedge oil, gananga oil, capsicum, caraway oil, cardamom oil, cassia oil, celery oil, cinnamon oil, citronella oil, cognac oil, coriander oil, cupep oil, cumin oil, camphor oil, gyrus oil, estgolan oil, and eucalyptus oil. Examples include potassium oil, fennel oil, garlic oil, ginger oil, grapefruit oil, hop oil, juniper berry oil, laurel leaf oil, lemon oil, lemongrass oil, romaine oil, mace oil, nutmeg oil, mandarin oil, tangerine oil, mustard oil, peppermint oil, orange blossom oil, onion oil, pepper oil, orange oil, sage oil, star anise oil, turpentine oil, wormwood oil, and alligator bean extract.Artificial fragrances are synthetic or extracted fragrances, and such artificial fragrances include pinene, limonene, linalool, geraniol, citronellol, menthol, borneol, benzyl alcohol, anise alcohol, β-phenylethyl alcohol, anethole, eugenol, n-butyraldehyde, isobutyraldehyde, hexylaldehyde, heptylaldehyde, n-nonylaldehyde, nonadienal, citral, citronellal, benzaldehyde, cinnamic aldehyde, heliotropin, vanillin, methylamyl ketone, methylnonyl ketone, diacetyl, acetylpropionyl, acetylbutyryl, carvone, menthone, camphor, acetophenone, p-methylacetophenone, ionone, amylbutyllactone, ethyl methylphenylglycidate, γ-nonyl Examples include rulactone, coumarin, cineole, methylformate, isopropylformate, linalilformate, ethyl acetate, octyl acetate, menthyl acetate, benzyl acetate, cinnamyl acetate, butyl propionate, isoamyl acetate, isopropyl isobutyrate, granyl isovalerate, allyl caproate, butyl heptylate, octyl caprylate, methyl heptincarboxylate, ethyl pelargonate, methine octincarboxylate, isoamyl caprate, methyl laurate, ethyl myristate, ethyl benzoate, benzyl benzoate, methyl phenylacetate, butyl phenylacetate, methyl cinnamate, cinnamyl cinnamate, methyl salicylate, ethyl anisate, methyl anthranilate, ethyl pyrubate, and ethyl α-butyl butyrate.

[0033] This composition can be obtained, for example, by mixing a pyrethroid compound, a solvent, and optionally a radical chain inhibitor, a peroxide decomposer, and a formulation aid until homogeneous.

[0034] The following shows a sample manufacturing example. Note that the values ​​in Tables 1-20 below represent parts by mass. The materials used in the sample manufacturing example are listed below. P1: Natural pyrethrin S1-1: Diisopropyl adipate S2-1: Isopar M S2-2: Exol D110 S2-3: Exol D80 S3-1: Mixed solvent of Isopar M and Isopar L in a 4:6 (weight ratio) S3-2: Mixed solvent of Exol D110 and Exol D130 in a 5:5 (weight ratio) ratio. A1-1: BHT A2-1: Triisodecyl Phosphite A2-2: Triphenyl phosphite A2-3: Tetraphenyldipropylene glycol diphosphite A2-4: Diphenyl mono(2-ethylhexyl) phosphite A2-5: Di-n-decylphenyl phosphite

[0035] Reference production example 1 (this composition 1-258) Compositions 1 to 258 are obtained by mixing pyrethroid compounds, solvents, and other components to achieve the compositions shown in Tables 1 to 20.

[0036] [Table 1]

[0037] [Table 2]

[0038] [Table 3]

[0039] [Table 4]

[0040] [Table 5]

[0041] Table 6

[0042] Table 7

[0043] Table 8

[0044] Table 9

[0045] Table 10

[0046] Table 11

[0047] Table 12

[0048] Table 13

[0049] Table 14

[0050] [Table 15]

[0051] [Table 16]

[0052] [Table 17]

[0053] [Table 18]

[0054] [Table 19]

[0055] [Table 20]

[0056] Reference production example 2 (this composition 259-440) Compositions 259 to 440 are obtained in the same manner as in Reference Manufacturing Example 1, except that A2-2 is used instead of A2-1 in Tables 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, and 20.

[0057] Reference production example 3 (this composition 441-622) Compositions 441 to 622 are obtained in the same manner as in Reference Manufacturing Example 1, except that A2-3 is used instead of A2-1 in Tables 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, and 20.

[0058] Reference production example 4 (this composition 623-804) Compositions 623 to 804 are obtained in the same manner as in Reference Manufacturing Example 1, except that A2-4 is used instead of A2-1 in Tables 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, and 20.

[0059] Reference production example 5 (this composition 805-986) Compositions 805 to 986 are obtained in the same manner as in Reference Manufacturing Example 1, except that A2-5 is used instead of A2-1 in Tables 2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, and 20.

[0060] Further reference manufacturing examples are shown below. In reference manufacturing examples A1 to A15 below, "parts" refers to "parts by mass." The solvents used in the reference manufacturing examples are listed below. Solvent 1: Exxsol D110 (hydrocarbon solvent, manufactured by ExxonMobil) Solvent 2: Exxsol D130 (hydrocarbon solvent, manufactured by ExxonMobil) Solvent 3: Isopar L (hydrocarbon solvent, manufactured by ExxonMobil) Solvent 4: Isopar M (hydrocarbon solvent, manufactured by ExxonMobil) Solvent 5: Isopar V (hydrocarbon solvent, manufactured by ExxonMobil)

[0061] Reference production example A1 (this composition A1 to A20) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 25 parts of one solvent selected from solvents 1 to 5 (first solvent), and 75 parts of one solvent selected from solvents 1 to 5, excluding the first solvent (second solvent). The combinations of the first and second solvents are as follows: solvent 1 + solvent 2 (composition A1), solvent 1 + solvent 3 (composition A2), solvent 1 + solvent 4 (composition A3), solvent 1 + solvent 5 (composition A4), solvent 2 + solvent 1 (composition A5), solvent 2 + solvent 3 (composition A6), solvent 2 + solvent 4 (composition A7), solvent 2 + solvent 5 (composition A8), solvent 3 + solvent 1 (composition A9), solvent 3 + solvent 2 (composition A10), solvent 3 + solvent 4 (composition A11), solvent 3 + solvent In any of the following cases, the liquid composition can be used to prepare a liquid composition to be filled into a bottle for a liquid mosquito repellent device: 5 (Composition A12), solvent 4 + solvent 1 (Composition A13), solvent 4 + solvent 2 (Composition A14), solvent 4 + solvent 3 (Composition A15), solvent 4 + solvent 5 (Composition A16), solvent 5 + solvent 1 (Composition A17), solvent 5 + solvent 2 (Composition A18), solvent 5 + solvent 3 (Composition A19), or solvent 5 + solvent 4 (Composition A20).

[0062] Reference production example A2 (this composition A21 to A30) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 50 parts of one solvent selected from solvents 1 to 5 (first solvent), and 50 parts of one solvent selected from solvents 1 to 5, excluding the first solvent (second solvent). In any case of the above combination of the first and second solvents, such as solvent 1 + solvent 2 (composition A21), solvent 1 + solvent 3 (composition A22), solvent 1 + solvent 4 (composition A23), solvent 1 + solvent 5 (composition A24), solvent 2 + solvent 3 (composition A25), solvent 2 + solvent 4 (composition A26), solvent 2 + solvent 5 (composition A27), solvent 3 + solvent 4 (composition A28), solvent 3 + solvent 5 (composition A29), or solvent 4 + solvent 5 (composition A30), the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0063] Reference production example A3 (this composition A31 to A35) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54 with 100 parts of one solvent selected from solvents 1 to 5 (solvent 1: composition A31, solvent 2: composition A32, solvent 3: composition A33, solvent 4: composition A34, solvent 5: composition A35). This liquid composition can be used to prepare a liquid composition to be filled into a bottle for a liquid mosquito repellent device.

[0064] Reference production example A4 (this composition A36 to A55) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 25 parts of one solvent selected from solvents 1 to 5 (first solvent), 75 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 0.5 parts of isopropyl myristate. The combinations of the first and second solvents are: solvent 1 + solvent 2 (composition A36), solvent 1 + solvent 3 (composition A37), solvent 1 + solvent 4 (composition A38), solvent 1 + solvent 5 (composition A39), solvent 2 + solvent 1 (composition A40), solvent 2 + solvent 3 (composition A41), solvent 2 + solvent 4 (composition A42), solvent 2 + solvent 5 (composition A43), solvent 3 + solvent 1 (composition A44), solvent 3 + solvent 2 (composition A45), solvent 3 + solvent 4 (composition A46), and In any of the following cases, the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device: agent 3 + solvent 5 (composition A47), solvent 4 + solvent 1 (composition A48), solvent 4 + solvent 2 (composition A49), solvent 4 + solvent 3 (composition A50), solvent 4 + solvent 5 (composition A51), solvent 5 + solvent 1 (composition A52), solvent 5 + solvent 2 (composition A53), solvent 5 + solvent 3 (composition A54), or solvent 5 + solvent 4 (composition A55).

[0065] Reference production example A5 (this composition A56~A65) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 50 parts of one solvent selected from solvents 1 to 5 (first solvent), 50 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 0.5 parts of isopropyl myristate. Regardless of whether the combination of the first solvent and the second solvent is solvent 1 + solvent 2 (composition A56), solvent 1 + solvent 3 (composition A57), solvent 1 + solvent 4 (composition A58), solvent 1 + solvent 5 (composition A59), solvent 2 + solvent 3 (composition A60), solvent 2 + solvent 4 (composition A61), solvent 2 + solvent 5 (composition A62), solvent 3 + solvent 4 (composition A63), solvent 3 + solvent 5 (composition A64), or solvent 4 + solvent 5 (composition A65), the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0066] Reference production example A6 (this composition A66 to A70) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 100 parts of one solvent selected from solvents 1 to 5, and 0.5 parts of isopropyl myristate (solvent 1: composition A66, solvent 2: composition A67, solvent 3: composition A68, solvent 4: composition A69, solvent 5: composition A70). This liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0067] Reference production example A7 (this composition A71 to A90) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 25 parts of one solvent selected from solvents 1 to 5 (first solvent), 75 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 5 parts of isopropyl myristate. The combinations of the first and second solvents are as follows: solvent 1 + solvent 2 (composition A71), solvent 1 + solvent 3 (composition A72), solvent 1 + solvent 4 (composition A73), solvent 1 + solvent 5 (composition A74), solvent 2 + solvent 1 (composition A75), solvent 2 + solvent 3 (composition A76), solvent 2 + solvent 4 (composition A77), solvent 2 + solvent 5 (composition A78), solvent 3 + solvent 1 (composition A79), solvent 3 + solvent 2 (composition A80), solvent 3 + solvent 4 (composition A81), and In any of the following cases, the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device: agent 3 + solvent 5 (composition A82), solvent 4 + solvent 1 (composition A83), solvent 4 + solvent 2 (composition A84), solvent 4 + solvent 3 (composition A85), solvent 4 + solvent 5 (composition A86), solvent 5 + solvent 1 (composition A87), solvent 5 + solvent 2 (composition A88), solvent 5 + solvent 3 (composition A89), or solvent 5 + solvent 4 (composition A90).

[0068] Reference production example A8 (this composition A91 to A100) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 50 parts of one solvent selected from solvents 1 to 5 (first solvent), 50 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 5 parts of isopropyl myristate. Regardless of whether the combination of the first solvent and the second solvent is solvent 1 + solvent 2 (composition A91), solvent 1 + solvent 3 (composition A92), solvent 1 + solvent 4 (composition A93), solvent 1 + solvent 5 (composition A94), solvent 2 + solvent 3 (composition A95), solvent 2 + solvent 4 (composition A96), solvent 2 + solvent 5 (composition A97), solvent 3 + solvent 4 (composition A98), solvent 3 + solvent 5 (composition A99), or solvent 4 + solvent 5 (composition A100), the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0069] Reference production example A9 (this composition A101 to A105) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 5 parts of isopropyl myristate, and 100 parts of one solvent selected from solvents 1 to 5 (solvent 1: composition A101, solvent 2: composition A102, solvent 3: composition A103, solvent 4: composition A104, solvent 5: composition A105). This liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0070] Reference production example A10 (this composition A106 to A125) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 25 parts of one solvent selected from solvents 1 to 5 (first solvent), 75 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 0.5 parts of 3,9-bis(isotridecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane. The combinations of the first solvent and the second solvent mentioned above are: solvent 1 + solvent 2 (composition A106), solvent 1 + solvent 3 (composition A107), solvent 1 + solvent 4 (composition A108), solvent 1 + solvent 5 (composition A109), solvent 2 + solvent 1 (composition A110), solvent 2 + solvent 3 (composition A111), solvent 2 + solvent 4 (composition A112), solvent 2 + solvent 5 (composition A113), solvent 3 + solvent 1 (composition A114), solvent 3 + solvent 2 (composition A115), solvent 3 + solvent 4 (composition A116), In any of the following cases, the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent: solvent 3 + solvent 5 (composition A117), solvent 4 + solvent 1 (composition A118), solvent 4 + solvent 2 (composition A119), solvent 4 + solvent 3 (composition A120), solvent 4 + solvent 5 (composition A121), solvent 5 + solvent 1 (composition A122), solvent 5 + solvent 2 (composition A123), solvent 5 + solvent 3 (composition A124), or solvent 5 + solvent 4 (composition A125).

[0071] Reference production example A11 (this composition A126 to A135) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 50 parts of one solvent selected from solvents 1 to 5 (first solvent), 50 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 0.5 parts of 3,9-bis(isotridecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane. Regardless of whether the combination of the first solvent and the second solvent is solvent 1 + solvent 2 (composition A126), solvent 1 + solvent 3 (composition A127), solvent 1 + solvent 4 (composition A128), solvent 1 + solvent 5 (composition A129), solvent 2 + solvent 3 (composition A130), solvent 2 + solvent 4 (composition A131), solvent 2 + solvent 5 (composition A132), solvent 3 + solvent 4 (composition A133), solvent 3 + solvent 5 (composition A134), or solvent 4 + solvent 5 (composition A135), the liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0072] Reference production example A12 (this composition A136 to A140) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 100 parts of one solvent selected from solvents 1 to 5, and 0.5 parts of 3,9-bis(isotridecyloxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (solvent 1: composition A136, solvent 2: composition A137, solvent 3: composition A138, solvent 4: composition A139, solvent 5: composition A140). This liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0073] Reference production example A13 (this composition A141 to A160) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 25 parts of one solvent selected from solvents 1 to 5 (first solvent), 75 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 1.0 part of BHT. The combinations of the first and second solvents are as follows: solvent 1 + solvent 2 (composition A141), solvent 1 + solvent 3 (composition A142), solvent 1 + solvent 4 (composition A143), solvent 1 + solvent 5 (composition A144), solvent 2 + solvent 1 (composition A145), solvent 2 + solvent 3 (composition A146), solvent 2 + solvent 4 (composition A147), solvent 2 + solvent 5 (composition A148), solvent 3 + solvent 1 (composition A149), solvent 3 + solvent 2 (composition A150), solvent 3 + solvent 4 (composition A151), In any of the following cases, the liquid composition can be used to prepare a liquid composition to be filled into a bottle for a liquid mosquito repellent: solvent 3 + solvent 5 (composition A152), solvent 4 + solvent 1 (composition A153), solvent 4 + solvent 2 (composition A154), solvent 4 + solvent 3 (composition A155), solvent 4 + solvent 5 (composition A156), solvent 5 + solvent 1 (composition A157), solvent 5 + solvent 2 (composition A158), solvent 5 + solvent 3 (composition A159), or solvent 5 + solvent 4 (composition A160).

[0074] Reference production example A14 (this composition A161 to A170) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 50 parts of one solvent selected from solvents 1 to 5 (first solvent), 50 parts of one solvent selected from solvents 1 to 5 excluding the first solvent (second solvent), and 1.0 part of BHT. Regardless of whether the combination of the first solvent and the second solvent is solvent 1 + solvent 2 (composition A161), solvent 1 + solvent 3 (composition A162), solvent 1 + solvent 4 (composition A163), solvent 1 + solvent 5 (composition A164), solvent 2 + solvent 3 (composition A165), solvent 2 + solvent 4 (composition A166), solvent 2 + solvent 5 (composition A167), solvent 3 + solvent 4 (composition A168), solvent 3 + solvent 5 (composition A169), or solvent 4 + solvent 5 (composition A170), the liquid composition can be used to prepare a liquid composition to be filled into a bottle for a liquid mosquito repellent device.

[0075] Reference production example A15 (this composition A171 to A175) A liquid composition is obtained by mixing 0.5 parts of one or more synthetic pyrethroid compounds selected from P2 to P54, 100 parts of one solvent selected from solvents 1 to 5, and 1.0 part of BHT (solvent 1: composition A171, solvent 2: composition A172, solvent 3: composition A173, solvent 4: composition A174, solvent 5: composition A175). This liquid composition can be used to prepare a liquid composition to be filled into a bottle of a liquid mosquito repellent device.

[0076] <Transpiration rate> The evaporation rate of the pyrethroid compound contained in this composition can be arbitrarily set according to the purpose. When using natural pyrethrin as the pyrethroid compound, this composition can be prepared by heating at 140°C for 116 hours to evaporate the natural pyrethrin at an evaporation rate ranging from 0.1 mg / hour to 2.0 mg / hour. When using a synthetic pyrethroid compound as the pyrethroid compound, this composition can be prepared by heating at 140°C for 116 hours to evaporate the synthetic pyrethroid compound at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour.

[0077] In this invention, the evaporation rate of the pyrethroid compound after heating for X hours means the mass (mg / hour) of the pyrethroid compound that evaporates per hour during a total heating time of X hours to X+1 hours. That is, for example, the evaporation rate of pyrethroid after heating for 10 hours means the mass (mg / hour) of the pyrethroid compound that evaporates per hour during a total heating time of 10 to 11 hours. The evaporation rate after heating at 140°C for 116 hours can be measured, for example, by the following method: A composition prepared by mixing pyrethroid compounds, solvents, etc., is filled into a 45 mL liquid mosquito repellent bottle, a stopper with an absorbent wick inserted is attached, and the system is energized (heated) for a total of 14 days (112 hours), with "8 hours of power on - 4 hours off" being considered equivalent to one day of use. Then, on the 15th day, the mass (mg / hour) of pyrethroid compounds evaporated in one hour during the 4-5 hour period after the start of power-on is analyzed. The amount of pyrethroid compound evaporated (mg / hr) can be determined by collecting the vapor of the evaporated pyrethroid compound in a urethane foam-packed column for a predetermined time, extracting it with acetone, and quantitatively analyzing the natural pyrethrin contained in the extract by high-performance liquid chromatography or gas chromatography. Evaporation rates at other time points can be measured in the same manner.

[0078] In another embodiment of the present invention, the pyrethroid compound is vaporized for 164 hours by heating at 140°C at a vaporization rate in the range of 0.008 mg / hour to 2.0 mg / hour. In another embodiment of the present invention, the pyrethroid compound is vaporized for 228 hours by heating at 140°C at a vaporization rate in the range of 0.008 mg / hour to 2.0 mg / hour. In one embodiment of the present invention, the ratio (V116 / V4) of the evaporation rate of natural pyrethrin after 116 hours at 140°C (V116) to the evaporation rate of natural pyrethrin after 4 hours at 140°C (V4) can be 0.1 to 3.0. Specific examples of the ratio (V116 / V4) include 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, and 2.9.

[0079] One embodiment of the present invention is a pest control method comprising heating a composition containing 0.1 to 3.0% by mass of a pyrethroid compound, 0.1 to 10% by mass of a radical chain inhibitor, 0.1 to 2.0% by mass of a peroxide decomposer, and 60 to 99.5% by mass of a solvent at 140°C for 116 to 2160 hours, thereby vaporizing the pyrethroid compound at a vaporization rate in the range of 0.1 mg / hour to 2.0 mg / hour.

[0080] This composition is preferably used in the method of the present invention as a heat-dispersed insecticide.

[0081] <Insect control agent for heat vaporization> The heat-evaporative insecticide used in one embodiment of the present invention is a formulation that can be used in a heat-evaporative insecticide device 100, such as the one shown in Figure 1. The heat-evaporative insecticide (solution 1) is filled into a liquid bottle 4. A portion of the liquid-absorbing wick 3 is immersed in the solution 1, and the liquid-absorbing wick is made to absorb the heat-evaporative insecticide, and the upper part of the liquid-absorbing wick can be heated by a heating element 2 (the heating element is also called a heat-generating element). By indirectly heating the upper part of the liquid-absorbing wick to a temperature of about 60°C to about 150°C with the heating element 2, the natural pyrethrin contained in the heat-evaporative insecticide absorbed by the liquid-absorbing wick is evaporated into the atmosphere, thereby controlling pests. The heat-evaporative insecticide of one embodiment of the present invention is not limited to the device shown in Figure 1, but can be applied to conventionally known heat-evaporative insecticide devices, all of which can produce excellent effects. A heat-vaporation type insecticide apparatus to which the heat-vaporation insecticide formulation of the present invention can be applied is also described in, for example, Japanese Patent Publication No. 52-12106, Japanese Utility Model Publication No. 58-45670, and Japanese Patent Publication No. 2012-176947.

[0082] The heating element (heating element 2) used in the heat vaporization type insecticide device is typically a heating element that generates heat when an electric current is applied, such as a PTC heater (positive characteristic thermistor) or a ceramic heater. However, it is not limited to these, and any known heating element, such as an air-oxidizing heating element or a heating element utilizing a platinum catalyst, can be used.

[0083] The liquid-absorbing core 3 can be broadly classified into porous cores, resin cores, felt cores, braided cores, and adhesive cores according to general classifications. In the present invention, porous cores and resin cores are preferably used, and resin cores are more preferably used. The material of the porous core is not particularly limited, as long as it is stable to heat-evaporative insect control agents and capable of absorbing the solution by capillary action. The porous core is made by fixing a mixture containing (a) an inorganic substance (inorganic powder, inorganic binder, etc.) and / or (b) an organic substance (carbonaceous powder, organic binder, etc.) with a binder such as starch or CMC. Such a liquid-absorbing core is microporous and has relatively good liquid-absorbing properties. There are also porous fired cores that are made up of almost only (a) with a small amount of (b) and fired at 600 to 2000°C, and such porous fired cores are sometimes called porous ceramic cores. The inorganic substance contains inorganic powder as an essential component, but may also contain an inorganic binder as an auxiliary component if necessary. Examples of such inorganic powders include steatite, alumina, titanium, silica, talc, calcite, perlite, mullite, cordierite, mica, zirconia, diatomaceous earth, gypsum, acid clay, activated clay, fiberglass, asbestos, glassy volcanic rock calcined powder, glassy volcanic ash calcined powder, and porous porcelain. Examples of such inorganic binders include various clays such as clay (kaolin clay), bentonite, and halosite, as well as tar pitch and water glass. Of these, clay is a preferred material because of its excellent binding properties. The above inorganic binders may be used individually or in a mixture of multiple types. Examples of the aforementioned organic substances include carbonaceous powders such as wood flour, activated carbon, charcoal, diatomaceous earth, graphite, carbon black, and coke, or organic binders such as carboxymethylcellulose (CMC), pulp, acrylic resin, polyolefin resin, starch (such as pregelatinized starch), gum arabic, guatti gum, jos powder, guar gum, gelatin, and polyvinyl alcohol. The resin core is formed by covering the outer surface of the core material with a sheath material for absorbing and vaporizing a heat-dispersing insecticide. For example, it can be formed from thermoplastic and / or thermosetting synthetic resins with heat resistance of 130°C or higher, such as polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polytrimethylene terephthalate, synthetic fibers such as nylon, polylactic acid, polyurethane, polyphenylene sulfide, and polyetherimide, inorganic fibers, and plastic materials such as polyethylene, polypropylene, polyvinyl chloride, acrylic resin, and phenolic resin. The core material that forms the inside of the sheath material is usually formed as a fiber aggregate. The fibers that form this aggregate include felt, cotton, pulp, nonwoven fabric, asbestos, glass fiber, carbon fiber, cellulose, inorganic molded products, as well as synthetic fibers such as polyesters such as polyethylene terephthalate and polybutylene terephthalate, acrylic, polyphenylene sulfide, polyethylene oxide, nylon, polyethylene, polypropylene, polyvinyl alcohol, vinylon, polyamide, rayon, vinyl chloride, and polylactic acid, and highly water-absorbent wood. Furthermore, a binder resin is used to heat-bond and fix the fiber aggregate. Examples of binder resins include triazine-based resins, urea-based resins, phenol-based resins, polyurethane-based resins, and epoxy-based resins. Furthermore, the liquid-absorbing core may appropriately contain dyes, preservatives, or antioxidants, for example, by mixing them during the bonding process between the inorganic powder and the adhesive. Commercially available liquid-absorbing wicks can be used, and examples of such commercially available liquid-absorbing wicks include Huiji Clay (manufactured by Zhejiang Huiji New Materials Co., Ltd.), Huiji Wood (manufactured by Zhejiang Huiji New Materials Co., Ltd.), EPN-011496 (manufactured by Porex Fiber Technologies Sdn Bhd), 111848 (manufactured by Porex Fiber Technologies Sdn Bhd), Fuji-Chem HK-100 (manufactured by Fuji Chemical Co., Ltd.), and Rauschert Steatite 45% (manufactured by Rauschert).

[0084] One of the physical properties of an absorbent wick is porosity (={1-[bulk density / true density]}×100), and this value is known to be related to the liquid absorption height due to capillary action of the solution (Gypsum & Lime No. 213 (1988)). In calculating the porosity, the bulk density (g / mL) can be determined, for example, by dividing the sample weight (in g) by the sample bulk volume (c) (in mL). The sample bulk volume (c) can be measured, for example, using a mercury intrusion porosimeter as follows: The "total volume of the cell" is determined by filling a sealed measuring cell with mercury. Next, the "cell volume excluding the sample" is determined by filling the sealed measuring cell with mercury at low pressure with the sample inside. The sample bulk volume (c) is calculated by taking the difference between the "total volume of the cell" and the "cell volume excluding the sample". In calculating the porosity, the true density can be determined by the following formula. True density (e) = Sample weight ÷ (Sample bulk volume (c) - Sample pore volume (d)) The method for measuring the sample bulk volume (c) is as described above. The sample pore volume (d) can be measured, for example, using a mercury intrusion porosimeter as follows: Mercury is injected into a sealed cell containing the sample up to the upper limit of the measurement pressure range, and the cumulative pore volume of the sample (f) (unit: mL / g) is determined from the mercury volume obtained. Then, the sample pore volume (d) (mL) is obtained by multiplying the obtained cumulative pore volume of the sample (f) (unit: mL / g) by the sample weight (g). Examples of porosity for the liquid-absorbing wick used in the present invention include 30-70%. Among these, 40-70% is preferred, and 45-60% is more preferred. Specific porosity values ​​include 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 41%, 42%, 43%, 44%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, and 69%.

[0085] Furthermore, the cumulative pore volume (mL / g) is known as a physical property of the liquid-absorbing wick. The cumulative pore volume can be determined by the measurement method using the mercury intrusion porosimeter described above. Examples of the cumulative pore volume of the liquid-absorbing wick used in the present invention include 0.1 to 2.0 mL / g, preferably 0.2 to 1.5 mL / g, and more preferably 0.4 to 1.5 mL / g. Specific cumulative pore volumes include 0.1 mL / g, 0.2 mL / g, 0.3 mL / g, 0.4 mL / g, 0.5 mL / g, 0.6 mL / g, 0.7 mL / g, 0.8 mL / g, 0.9 mL / g, 1.0 mL / g, 1.1 mL / g, 1.2 mL / g, 1.3 mL / g, 1.4 mL / g, 1.5 mL / g, 1.6 mL / g, 1.7 mL / g, 1.8 mL / g, 1.9 mL / g, and 2.0 mL / g.

[0086] Furthermore, the pore size (μm) is known as a physical property of the liquid-absorbing wick. The pore size can be measured, for example, using a mercury intrusion porosimeter. From the relationship between the pore size and its volume obtained using a mercury intrusion porosimeter, the pore size distribution can be obtained, and the pore size to which the most mercury has penetrated can be read. This can be understood as the pore size that is most abundant among the pore sizes distributed in the measured liquid-absorbing wick. Examples of pore sizes for the liquid-absorbing wick used in this invention include 0.2 to 120 μm, preferably 0.5 to 100 μm, and more preferably 1.0 to 70 μm. Specific pore sizes include 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, and 110 μm.

[0087] Furthermore, bulk density (g / mL) is a known physical property of the liquid-absorbing wick. Bulk density can be measured using the mercury intrusion type porosimeter described above. Examples of bulk densities for the liquid-absorbing wick used in the present invention include 0.05 to 2.0 g / mL. Among these, 0.2 to 1.5 g / mL is preferred, and 0.3 to 1.2 g / mL is more preferred. Specific bulk densities include 0.05 g / mL, 0.10 g / mL, 0.15 g / mL, 0.20 g / mL, 0.25 g / mL, 0.30 g / mL, 0.35 g / mL, 0.40 g / mL, 0.50 g / mL, 0.60 g / mL, 0.70 g / mL, 0.80 g / mL, 0.90 g / mL, 1.0 g / mL, 1.1 g / mL, 1.2 g / mL, 1.3 g / mL, 1.4 g / mL, 1.5 g / mL, 1.6 g / mL, 1.7 g / mL, 1.8 g / mL, 1.9 g / mL, and 2.0 g / mL.

[0088] Another physical property of the liquid-absorbing wick is its liquid absorption rate. Specifically, the liquid absorption rate can be measured by the following procedure 1) to 4). 1) Measure the weight (W1) of one dry liquid-absorbing wick. 2) Add the chemical solution to a glass petri dish (9 cm in diameter, 2 cm in height) until the liquid level reaches 1 cm, and place the absorbent wick, whose weight has been measured, vertically in the glass petri dish and immerse it in the chemical solution. 3) After allowing the wick to stand for 96 hours to allow it to immerse in the chemical solution, remove the wick from the solution and measure its weight (W2). 4) Calculate the liquid absorption rate (%) using the following formula. Liquid absorption rate (%)=[W2(g)-W1(g)] / W1(g)×100 The liquid absorption rate of the liquid-absorbing wick used in the present invention can be measured, for example, by using composition 75 as the chemical solution, in which case it may be in the range of 40% to 75%, or 35% to 75%.

[0089] Furthermore, the fiber diameter (i.e., the diameter of each individual fiber filament) is known as a physical property of resin-based liquid-absorbing cores (resin cores). For example, the fiber diameter of the resin core used in this invention can range from 0.5 μm to 50 μm. Specific fiber diameters include 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm, 24 μm, 25 μm, 26 μm, 27 μm, 28 μm, and 29 μm. Examples include 30μm, 31μm, 32μm, 33μm, 34μm, 35μm, 36μm, 37μm, 38μm, 39μm, 40μm, 41μm, 42μm, 43μm, 44μm, 45μm, 46μm, 47μm, 48μm, 49μm, and 50μm, and such fiber diameters may be in the range between any two of these values ​​(including the values ​​at both ends).

[0090] Furthermore, the fiber surface tension is known as a physical property of resin-based liquid-absorbing cores (resin cores). For example, the fiber surface tension of the resin core used in the present invention can be in the range of 30 dyn / cm to 70 dyn / cm. Specific fiber surface tensions include, for example, 30 dyn / cm, 35 dyn / cm, 40 dyn / cm, 45 dyn / cm, 50 dyn / cm, 55 dyn / cm, 60 dyn / cm, 65 dyn / cm, and 70 dyn / cm, and such fiber surface tensions may be in the range between any two of these values ​​(including the values ​​at both ends). Fiber surface tension can be measured, for example, by the Wilhelmy method and the Zisman plot. Specifically, for example, the fiber can be immersed perpendicularly in several liquids (such as n-alkanes) with different surface tensions (γL), then pulled out, and the contact angle can be determined from the change in load applied at that time. The point where cosθ = 1 (completely wet) can then be extrapolated to determine the fiber surface tension.

[0091] Furthermore, the fibers of the resin-based liquid-absorbing core (resin core) used in the present invention may have a melting point in the range of 120°C to 260°C. Specific examples of fiber melting points include 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C, 250°C, and 260°C, and such melting points may be within the range between any two of these values ​​(including the extreme values). In the present invention, the melting point refers to the value measured as the temperature at which an endothermic peak corresponding to melting is observed, obtained by differential scanning calorimetry.

[0092] Furthermore, the thickness of the sheath phase of the resin-made liquid-absorbing core (resin core) used in the present invention can range from 0.05 mm to 2.0 mm. Specific examples of sheath phase thicknesses include 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, and 2.0 mm. Such thicknesses may be within the range between any two of these values ​​(including the values ​​at both ends). The thickness of the sheath phase is usually uniform or nearly uniform, but the thickness may vary from place to place. In that case, the numerical values ​​for the thickness of the sheath layer mentioned above can be interpreted as the average value of the thickness measurements taken at 10 locations.

[0093] In a heat vaporization type insecticide device according to one embodiment of the present invention, the distance between the heating element and the liquid-absorbing wick may be 1 mm to 10 mm. Specific distances between the heating element and the liquid-absorbing wick include 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, and 10 mm. If the distance from the heating element to the liquid-absorbing wick varies depending on the location, the above distance shall be the average value of 10 points of the distance from the heating element to the liquid-absorbing wick (distance measured to be the shortest distance from a predetermined point on the heating element).

[0094] In a heat vaporization type insecticide device according to one embodiment of the present invention, the surface area of ​​the liquid-absorbing wick that is directly heated by the heating element (the surface area of ​​the liquid-absorbing wick facing the heating element) is 0.5 to 10 cm². 2It can be. As the specific surface area of the liquid absorption core directly heated by the heating element, 0.6 cm 2 , 0.7 cm 2 , 0.8 cm 2 , 0.9 cm 2 , 1.0 cm 2 , 1.1 cm 2 , 1.2 cm 2 , 1.3 cm 2 , 1.4 cm 2 , 1.5 cm 2 , 1.6 cm 2 , 1.7 cm 2 , 1.8 cm 2 , 1.9 cm 2 , 2.0 cm 2 , 2.1 cm 2 , 2.2 cm 2 , 2.3 cm 2 , 2.4 cm 2 , 2.5 cm 2 , 2.6 cm 2 , 2.7 cm 2 , 2.8 cm 2 , 2.9 cm 2 , 3.0 cm 2 , 3.5 cm 2 , 4.0 cm 2 , 4.5 cm 2 , 5.0 cm 2 , 5.5 cm 2 , 6.0 cm 2 , 6.5 cm 2 , 7.0 cm 2 , 7.5 cm 2 , �.0 cm 2 , 8.5 cm 2 , 9.0 cm 2 , 9.5 cm 2 are cited.

[0095] Reference Production Example B1 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of PET to polyurethane resin is PET:polyurethane = 85:15 (by mass), and a resin-based liquid-absorbing core 1 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0096] Reference manufacturing example B2 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of PET to polyurethane resin is PET:polyurethane = 85:15 (by mass), and a resin-based liquid-absorbing core 2 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0097] Reference manufacturing example B3 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of PET to polyurethane resin is PET:polyurethane = 85:15 (by mass), and a resin-based liquid-absorbing core 3 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0098] Reference manufacturing example B4 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of PET to polyurethane resin is PET:polyurethane = 85:15 (by mass), and a resin-based liquid-absorbing core 4 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0099] Reference manufacturing example B5 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of PET to epoxy resin is PET:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 5 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0100] Reference manufacturing example B6 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of PET to epoxy resin is PET:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 6 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0101] Reference manufacturing example B7 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of PET to epoxy resin is PET:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 7 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0102] Reference manufacturing example B8 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of PET to epoxy resin is PET:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 8 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g. Reference manufacturing example B9

[0103] Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of PET to triazine-based resin is PET:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 9 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0104] Reference manufacturing example B10 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of PET to triazine-based resin is PET:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 10 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0105] Reference manufacturing example B11 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of PET to triazine-based resin is PET:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 11 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0106] Reference manufacturing example B12 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of PET to triazine-based resin is PET:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 12 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0107] Reference manufacturing example B13 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of PET to phenolic resin is PET:phenolic resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 13 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0108] Reference manufacturing example B14 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of PET to phenolic resin is PET:phenolic resin = 85:15 (by mass), and a resin-based liquid-absorbing core 14 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0109] Reference manufacturing example B15 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of PET to phenolic resin is PET:phenolic resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 15 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0110] Reference manufacturing example B16 Polyethylene terephthalate (PET) is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of PET to phenolic resin is PET:phenolic resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 16 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0111] Reference manufacturing example B17 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and polyurethane resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to polyurethane resin is polybutylene terephthalate:polyurethane resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 17 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0112] Reference manufacturing example B18 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to polyurethane resin is polybutylene terephthalate:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 18 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0113] Reference manufacturing example B19 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to polyurethane resin is polybutylene terephthalate:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 19 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0114] Reference manufacturing example B20 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a polyurethane resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to polyurethane resin is polybutylene terephthalate:polyurethane resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 20 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0115] Reference manufacturing example B21 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to epoxy resin is polybutylene terephthalate:epoxy resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 21 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0116] Reference manufacturing example B22 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to epoxy resin is polybutylene terephthalate:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 22 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0117] Reference manufacturing example B23 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to epoxy resin is polybutylene terephthalate:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 23 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0118] Reference manufacturing example B24 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and epoxy resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to epoxy resin is polybutylene terephthalate:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 24 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0119] Reference manufacturing example B25 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to triazine-based resin is polybutylene terephthalate:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 25 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0120] Reference manufacturing example B26 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of polybutylene terephthalate and triazine-based resin is polybutylene terephthalate:triazine-based resin = 85:15 (mass ratio), and a resin-based liquid-absorbing core 26 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0121] Reference manufacturing example B27 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of polybutylene terephthalate and triazine-based resin is polybutylene terephthalate:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 27 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0122] Reference manufacturing example B28 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a triazine-based resin is used as the binder resin. The mixing ratio of polybutylene terephthalate and triazine-based resin is polybutylene terephthalate:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 28 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0123] Reference manufacturing example B29 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to phenolic resin is polybutylene terephthalate:phenolic resin = 85:15 (by mass), resulting in a resin-made liquid-absorbing core 29 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0124] Reference manufacturing example B30 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to phenolic resin is polybutylene terephthalate:phenolic resin = 85:15 (by mass), resulting in a resin-made liquid-absorbing core 30 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0125] Reference manufacturing example B31 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of polybutylene terephthalate and phenolic resin is polybutylene terephthalate:phenolic resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 31 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0126] Reference manufacturing example B32 Polybutylene terephthalate is used as the synthetic fiber for both the core and sheath materials, and a phenolic resin is used as the binder resin. The mixing ratio of polybutylene terephthalate to phenolic resin is polybutylene terephthalate:phenolic resin = 85:15 (by mass), resulting in a resin-made liquid-absorbing core 32 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0127] Reference manufacturing example B33 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and polyurethane resin is used as the binder resin. The mixing ratio of the synthetic fibers and polyurethane resin is PET + nylon:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 33 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0128] Reference manufacturing example B34 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and polyurethane resin is used as the binder resin. The mixing ratio of the synthetic fibers and polyurethane resin is PET + nylon:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 34 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0129] Reference manufacturing example B35 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and polyurethane resin is used as the binder resin. The mixing ratio of the synthetic fibers and polyurethane resin is PET + nylon:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 35 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0130] Reference manufacturing example B36 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and polyurethane resin is used as the binder resin. The mixing ratio of the synthetic fibers and polyurethane resin is PET + nylon:polyurethane resin = 85:15 (by mass), and a resin-based liquid-absorbing core 36 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0131] Reference manufacturing example B37 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and epoxy resin is used as the binder resin. The mixing ratio of the synthetic fibers and epoxy resin is PET + nylon:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 37 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0132] Reference manufacturing example B38 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and epoxy resin is used as the binder resin. The mixing ratio of the synthetic fibers and epoxy resin is PET + nylon:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 38 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0133] Reference manufacturing example B39 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and epoxy resin is used as the binder resin. The mixing ratio of the synthetic fibers and epoxy resin is PET + nylon:epoxy resin = 85:15 (by mass), and a resin liquid-absorbing core 39 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0134] Reference manufacturing example B40 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and epoxy resin is used as the binder resin. The mixing ratio of the synthetic fibers and epoxy resin is PET + nylon:epoxy resin = 85:15 (by mass), and a resin-based liquid-absorbing core 40 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0135] Reference manufacturing example B41 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a triazine-based resin is used as the binder resin. The mixing ratio of the synthetic fibers and the triazine-based resin is PET + nylon:triazine-based resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 41 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0136] Reference manufacturing example B42 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a triazine-based resin is used as the binder resin. The mixing ratio of the synthetic fibers and the triazine-based resin is PET + nylon:triazine-based resin = 85:15 (by mass), and a resin-based liquid-absorbing core 42 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0137] Reference manufacturing example B43 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a triazine-based resin is used as the binder resin. The mixing ratio of the synthetic fibers and the triazine-based resin is PET + nylon:triazine-based resin = 85:15 (by mass), and a resin-based liquid-absorbing core 43 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0138] Reference manufacturing example B44 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and triazine resin is used as the binder resin. The mixing ratio of the synthetic fibers and triazine resin is PET + nylon:triazine resin = 85:15 (by mass), and a resin-based liquid-absorbing core 44 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0139] Reference manufacturing example B45 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a phenolic resin is used as the binder resin. The mixing ratio of the synthetic fibers and the phenolic resin is PET + nylon:phenolic resin = 85:15 (by mass), resulting in a resin-based liquid-absorbing core 45 with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.47 g / mL, a porosity of 65%, and a cumulative pore volume of 1.39 mL / g.

[0140] Reference manufacturing example B46 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a phenolic resin is used as the binder resin. The mixing ratio of the synthetic fibers and the phenolic resin is PET + nylon:phenolic resin = 85:15 (by mass), and a resin-based liquid-absorbing core 46 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.57 g / mL, a porosity of 57%, and a cumulative pore volume of 1.00 mL / g.

[0141] Reference manufacturing example B47 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a phenolic resin is used as the binder resin. The mixing ratio of the synthetic fibers and the phenolic resin is PET + nylon:phenolic resin = 85:15 (by mass), and a resin-based liquid-absorbing core 47 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.60 g / mL, a porosity of 54%, and a cumulative pore volume of 0.90 mL / g.

[0142] Reference manufacturing example B48 Polyethylene terephthalate (PET) is used as the synthetic fiber for the core material, nylon is used as the synthetic fiber for the sheath material, and a phenolic resin is used as the binder resin. The mixing ratio of the synthetic fibers and the phenolic resin is PET + nylon:phenolic resin = 85:15 (by mass), and a resin-based liquid-absorbing core 48 is obtained with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.69 g / mL, a porosity of 49%, and a cumulative pore volume of 0.70 mL / g.

[0143] Reference manufacturing example B49 The components are mixed in a mass ratio of perlite:diatomaceous earth:wood powder:carboxymethylcellulose sodium = 50:10:30:10. Water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 49, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0144] Reference manufacturing example B50 The components are mixed in a mass ratio of perlite:diatomaceous earth:wood powder:carboxymethylcellulose sodium = 60:10:20:10, water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 50, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0145] Reference manufacturing example B51 The components are mixed in the ratio of perlite, diatomaceous earth, wood flour, and sodium carboxymethylcellulose = 60:15:20:5 (by mass ratio). Water is added to the resulting mixture and kneaded. After extrusion molding, the mixture is dried at 40°C to obtain a liquid-absorbing core 51, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0146] Reference manufacturing example B52 Perlite:Diatomaceous earth:Wood flour:Starch is mixed in a mass ratio of 50:10:20:20. Water or hot water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 52, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0147] Reference manufacturing example B53 The components are mixed in a mass ratio of perlite:diatomaceous earth:wood flour:starch = 60:10:20:10. Water or hot water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 53, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0148] Reference manufacturing example B54 The components are mixed in the ratio of perlite, diatomaceous earth, wood flour, and starch = 60:15:20:5 (by mass ratio). Water or hot water is added to the resulting mixture and kneaded. After extrusion molding, the mixture is dried at 40°C to obtain a liquid-absorbing core 54, which is a porous core (clay core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0149] Reference manufacturing example B55 The components are mixed in a mass ratio of perlite:wood flour:sodium carboxymethylcellulose = 40:50:10, water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 55, which is a porous core (wood core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0150] Reference manufacturing example B56 The components are mixed in a mass ratio of perlite:wood flour:sodium carboxymethylcellulose = 40:55:5, water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 56, which is a porous core (wood core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0151] Reference manufacturing example B57 The components are mixed in a mass ratio of perlite:wood flour:starch = 40:50:10, water or hot water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 57, which is a porous core (wood core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0152] Reference manufacturing example B58 The components are mixed in a mass ratio of perlite:wood flour:starch = 40:55:5, water or hot water is added to the resulting mixture and kneaded, then extruded and dried at 40°C to obtain a liquid-absorbing core 58, which is a porous core (wood core) with an inner diameter of 7.0 mm, a length of 73 mm, a bulk density of 0.98 g / mL, a porosity of 53%, and a cumulative pore volume of 0.54 mL / g.

[0153] One parameter that can be considered when designing a heat vaporization type insecticide device is the "rate of reduction of the chemical solution during a given total heating time," which is defined by the following formula. Percentage reduction in chemical solution during a predetermined heating time (%) = (1 - Mass of heat-dispersible insecticide remaining in the bottle during the predetermined total heating time (g) / Mass of initial heat-dispersible insecticide filled in the bottle (g)) × 100 The rate of chemical solution reduction during a predetermined total heating time can be set according to the intended usage period of the heat vaporization type insecticide device. For example, when manufacturing a heat vaporization type insecticide device with a long usage period, it can be designed to have a low rate of chemical solution reduction during the predetermined heating time. The rate of chemical solution reduction during a predetermined total heating time can be adjusted by appropriately selecting the physical properties of the liquid-absorbing wick and the amount of chemical solution filled into the chemical solution bottle for heat vaporization pest control.

[0154] A heat vaporization type insecticide device according to one embodiment of the present invention may be designed such that the rate of reduction of the insecticide solution is 40-80% after a total heating time of 160 hours, and the rate of reduction of the insecticide solution is 60-100% after a total heating time of 360 hours.

[0155] Another embodiment of the present invention may be a heat vaporization type insecticide device designed such that the rate of reduction of the insecticide solution over a total heating time of 360 hours is 30-80%, and the rate of reduction of the insecticide solution over a total heating time of 720 hours is 50-100%.

[0156] Another embodiment of the present invention may be a heat vaporization type insecticide device designed such that the rate of reduction of the insecticide solution is 30-80% after a total heating time of 540 hours, and the rate of reduction of the insecticide solution is 50-100% after a total heating time of 1080 hours.

[0157] Another embodiment of the present invention may be a heat vaporization type insecticide device designed such that the rate of reduction of the insecticide solution is 30-80% over a total heating time of 720 hours, and the rate of reduction of the insecticide solution is 50-100% over a total heating time of 1440 hours.

[0158] Another embodiment of the present invention may be a heat vaporization type insecticide device designed such that the rate of reduction of the insecticide solution is 30-80% after a total heating time of 1080 hours, and the rate of reduction of the insecticide solution is 50-100% after a total heating time of 2160 hours.

[0159] A heat vaporization insecticide device according to one embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as an active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Isopar M and Isopar L in a 4:6 (mass ratio) amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate is 50% after a total heating time of 240 hours, and 100% after a total heating time of 360 hours.

[0160] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Isopar M and Isopar L in a 4:6 (mass ratio) amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of Clay) with a porosity of 53%, a cumulative pore volume of 0.54 mL / g, and a pore diameter of approximately 1 to 10 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate was 60% after a total heating time of 120 hours, and 90% after a total heating time of 240 hours.

[0161] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Isopar M and Isopar L in a 4:6 (mass ratio) amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of wood) with a porosity of 53%, a cumulative pore volume of 0.70 mL / g, and a pore diameter of approximately 1 to 10 μm is used. The temperature of the heating element is set to 140°C. The rate of liquid reduction after a total heating time of 240 hours is 92%.

[0162] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide formulation consists of 0.6 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), 15 parts by mass of diisopropyl adipate, and a mixed solvent of Isopar M and Isopar L in a 4:6 (mass ratio) amount necessary to make 100 parts by mass of the formulation. An absorbent wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10 to 100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate was 50% after a total heating time of 240 hours, and 80% after a total heating time of 360 hours.

[0163] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and the amount of Exol D110 necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The rate of reduction of the liquid solution over a total heating time of 440 hours is 85%.

[0164] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as an active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a 5:5 (mass ratio) mixed solvent of Exol D110 and Exol D130 in an amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 65%, a cumulative pore volume of 1.39 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate over a total heating time of 480 hours was 84%.

[0165] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as an active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Exol D110 and Exol D130 in a 5:5 (mass ratio) amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate was 60% after a total heating time of 480 hours, and 87% after a total heating time of 720 hours.

[0166] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.4 parts by mass of a pyrethroid compound (as an active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Exol D110 and Exol D130 in a 5:5 (mass ratio) amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 54%, a cumulative pore volume of 0.90 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate over a total heating time of 480 hours was 40%.

[0167] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.6 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and a mixed solvent of Exol D110 and Exol D130 in a 5:5 (mass ratio) ratio, in an amount necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 49%, a cumulative pore volume of 0.70 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The chemical solution reduction rate over a total heating time of 480 hours was 37%.

[0168] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 0.9 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and the amount of Exol D110 (by mass ratio) solvent necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The rate of reduction of the liquid solution over a total heating time of 440 hours is 77%.

[0169] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 1.2 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and the amount of Exol D110 (by mass ratio) solvent necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The rate of reduction of the liquid solution over a total heating time of 397 hours is 64%.

[0170] A heat vaporization insecticide device of another embodiment of the present invention may be configured as follows: The heat vaporization insecticide preparation consists of 1.5 parts by mass of a pyrethroid compound (as active ingredient), 5.06 parts by mass of BHT, 0.5 parts by mass of a peroxide decomposing agent (at least one selected from triphenyl phosphite, tetraphenyldipropylene glycol diphosphite, diphenyl mono(2-ethylhexyl) phosphite, di-n-decylphenyl phosphite, and triisodecyl phosphite), and the amount of Exol D110 (by mass ratio) solvent necessary to make 100 parts by mass of the preparation. 45 mL of the heat vaporization insecticide preparation is filled into a liquid bottle. A liquid-absorbing wick (made of resin) with a porosity of 57%, a cumulative pore volume of 1.00 mL / g, and a pore diameter of approximately 10-100 μm is used. The temperature of the heating element is set to 140°C. The rate of reduction of the liquid solution over a total heating time of 440 hours is 63%.

[0171] One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 116 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 160 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 360 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 540 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 720 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 1080 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 1440 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. One embodiment of the present invention is a pest control method comprising the step of heating a heat-evaporative insecticide formulation to vaporize a pyrethroid compound into the air for 2160 hours at an evaporation rate in the range of 0.008 mg / hour to 2.0 mg / hour. In one embodiment of the present invention, the ratio (R116 / R4) of the evaporation rate of the pyrethroid compound 4 hours after the start of evaporation (R4) (per hour from 4 to 5 hours after the start of evaporation) to the evaporation rate of the pyrethroid compound 116 hours after the start of evaporation (R116) (per hour from 116 to 117 hours after the start of evaporation) may be 0.1 to 3.0. Specific ratios (R116 / R4) include, for example, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, and 2.9. Another embodiment of the present invention is a method of controlling pests in which the heating of the heat-evaporative insect control agent is performed by having a liquid-absorbing wick absorb the heat-evaporative insect control agent and then heating the upper part of the liquid-absorbing wick with a heating element. Another embodiment of the present invention is a method for controlling pests, wherein the upper part of the liquid-absorbing wick is heated with a heating element to indirectly heat the upper part of the liquid-absorbing wick to a temperature of approximately 60°C to approximately 150°C (for example, 60°C, 70°C, 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C). The surface temperature of the heating element is usually in the range of approximately 60°C to approximately 150°C, preferably 85°C to 145°C, and the surface temperature of the upper part of the liquid-absorbing wick in each temperature range is approximately 60°C to 135°C and approximately 70°C to 130°C. Yet another embodiment of the present invention is a method for controlling pests, wherein the space from which the pyrethroid compound is vaporized includes at least one selected from entrances, corridors, toilets, washrooms, bathrooms, changing rooms, verandas, balconies, attics, stairs, garages, warehouses, attic storage, pantries, libraries, closets, cupboards, living rooms, bedrooms, dining rooms, and outdoors (e.g., gardens, yards, campgrounds, sports fields, forests).

[0172] The pests that can be controlled by the method of the present invention include various harmful insects and arthropods such as mites. Specifically, harmful flying pests include mosquitoes such as Culex pipiens, Culex tritaeniorhynchus, Culex tropicalis, and Culex pipiens; Aedes mosquitoes such as Aedes aegypti and Aedes albopictus; Anopheles mosquitoes such as Anopheles sinensis; midges; houseflies such as Muscicapa japonica, Muscicapa fuscipes, and Muscicapa japonica; blowflies, flesh flies, Drosophila, drain flies, phorid flies, horseflies, gnats, stable flies, and biting midges. Among these, mosquitoes such as Culex pipiens, Aedes mosquitoes, and Anopheles mosquitoes are particularly suitable as target pests for control. Furthermore, the method of the present invention is also effective against mosquitoes, flies, fleas, bed bugs, house dust mites, indoor dust mites, cockroaches, ticks, and other sanitary pests that are classified as sanitary pests that transmit diseases and cause illness in humans, and these sanitary pests can also be listed as target pests for control.

[0173] Another embodiment of the present invention is a method in which the method for controlling pests is a method for controlling sanitary pests. In this specification, "control" is a concept that includes extermination, repellent, and prevention. "Extermination" is a concept that includes killing, knocking down, driving away, or keeping away the target pest, and it is preferable to kill or knock down the pest. [Examples]

[0174] The present invention will be described in more detail below with reference to examples such as manufacturing examples and test examples, but the present invention is not limited to these examples.

[0175] Test Example 1 (Efficacy Test of Heat-Dispersed Insecticide) Ten female adult Culex pipiens pallens mosquitoes are placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm, and the openings at the top and bottom of the glass tube are covered with nylon netting to trap them. The same procedure is repeated to prepare two glass tubes containing 10 female adult Culex pipiens mosquitoes each. A metal cylinder with a diameter of 22 cm and a height of 83 cm is set upright. The two glass tubes containing the Culex pipiens mosquitoes are fixed vertically above the metal cylinder so that the lower end of the glass tubes is at the height of the upper opening of the metal cylinder. One of the compositions 1-986 or A1-A175 is filled into a bottle as a heat vaporization insect control agent, one of the suction wicks 1-58 is inserted, and the device is set in the heat vaporization insecticide device (heater temperature: 140°C) shown in Figure 1. The heat vaporization insecticide device is placed at the bottom inside the metal cylinder, and the knockdown rate is recorded after 10 minutes of being powered on (heating). The knockdown rate (hereinafter referred to as the KD rate) can be calculated using the following formula. KD rate (%) = (Number of knocked-down insects / Number of test insects) × 100 The following shows the combinations of this composition and the liquid-absorbing wick to be used.

[0176] [Table 21]

[0177]

Table 22

[0178]

Table 23

[0179]

Table 24

[0180] Test Example 2 (Efficacy Test of Heat-Dispersed Insecticide) The test will be conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and in which one of the absorbing wicks 1 to 58 is inserted," use "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and in which one of the absorbing wicks 1 to 58 is inserted, and which has been used at 140°C for 116 hours." It will be confirmed that all of the above combinations 1 to 3132 will show excellent insect control effects.

[0181] Test Example 3 (Efficacy Test of Heat-Dispersed Insecticide) The test is conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted," use "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted, and which has been used at 140°C for 160 hours." It is confirmed that all of the above combinations 1 to 3132 show excellent insect control effects.

[0182] Test Example 4 (Efficacy Test of Heat-Dispersed Insecticide) The test will be conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted," use "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted, and which has been used at 140°C for 360 hours." It will be confirmed that all of the above combinations 1 to 3132 will show excellent insect control effects.

[0183] Test Example 5 (Efficacy Test of Pest Control Agents for Heat Dispersion) The test will be conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted," use "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and into which one of the absorbing wicks 1 to 58 is inserted, and which has been used at 140°C for 540 hours." It will be confirmed that all of the above combinations 1 to 3132 will show excellent insect control effects.

[0184] Test Example 6 (Efficacy Test of Heat-Dispersed Insecticide) The test is conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and with one of the absorbent wicks 1 to 58 inserted into it," "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and with one of the absorbent wicks 1 to 58 inserted into it, and which has been used at 140°C for 720 hours," the test is conducted in the same manner as in Test Example 1. It is confirmed that all of the above combinations 1 to 3132 show excellent insect control effects.

[0185] Test Example 7 (Efficacy Test of Heat-Dispersed Insecticide) The test is conducted in the same manner as in Test Example 1, except that instead of using "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and with one of the absorbent wicks 1 to 58 inserted into it," "the heat vaporization insecticide device shown in Figure 1 (heater temperature: 140°C), which is set with a bottle filled with one of the compositions 1 to 986 or A1 to A175 as a heat vaporization insecticide and with one of the absorbent wicks 1 to 58 inserted into it, and which has been used at 140°C for 1080 hours," the test is conducted in the same manner as in Test Example 1. It is confirmed that all of the above combinations 1 to 3132 show excellent insect control effects.

[0186] Test Example 8 (Efficacy Test of Heat-Dispersed Insect Control Agent) Instead of "the heating evaporation type insecticidal device shown in Fig. 1 (heater temperature: 140°C) in which any one of the compositions 1 to 986 and A1 to A175 is filled as a pest control preparation for heating evaporation and any one of the liquid absorption cores 1 to 58 is inserted into a bottle", use "the heating evaporation type insecticidal device shown in Fig. 1 (heater temperature: 140°C) in which any one of the compositions 1 to 986 and A1 to A175 is filled as a pest control preparation for heating evaporation and any one of the liquid absorption cores 1 to 58 is inserted into a bottle, and the heating evaporation type insecticidal device after being used at 140°C for 1440 hours". Conduct the test in the same manner as in Test Example 1 except for this. In any of the above combinations 1 to 3132, it is confirmed that an excellent pest control effect is exhibited.

[0187] Test Example 9 (Potency Test of Pest Control Preparation for Heating Evaporation) Instead of "the heating evaporation type insecticidal device shown in Fig. 1 (heater temperature: 140°C) in which any one of the compositions 1 to 986 and A1 to A175 is filled as a pest control preparation for heating evaporation and any one of the liquid absorption cores 1 to 58 is inserted into a bottle", use "the heating evaporation type insecticidal device shown in Fig. 1 (heater temperature: 140°C) in which any one of the compositions 1 to 986 and A1 to A175 is filled as a pest control preparation for heating evaporation and any one of the liquid absorption cores 1 to 58 is inserted into a bottle, and the heating evaporation type insecticidal device after being used at 140°C for 2160 hours". Conduct the test in the same manner as in Test Example 1 except for this. In any of the above combinations 1 to 3132, it is confirmed that an excellent pest control effect is exhibited.

Industrial Applicability

[0188] According to the present invention, a pest control method with an excellent pest control effect can be provided.

Explanation of Signs

[0189] 1 Pest control preparation for heating evaporation 2 Heating element 3 Liquid absorption core 4 Chemical liquid bottle

Claims

[Claim 1] A method for controlling pests, comprising the steps of immersing a liquid-absorbing wick in a composition containing a pyrethroid compound and a solvent, and indirectly heating the composition absorbed through the liquid-absorbing wick by a heating unit to vaporize the pyrethroid compound.

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