Composition for stinkbug, spray, and method for controlling stinkbug

Abstract

To provide a composition for stinkbugs having enhanced residual efficacy.SOLUTION: Provided are: a composition capable of controlling stinkbugs, the composition containing momfluorothrin and silafluofen; a spray including a container and the composition for stinkbugs housed therein; and a method for controlling stinkbugs, which comprises the step of using the composition for stinkbugs to control stinkbugs.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a composition for stink bugs, a spray, and a method for controlling stink bugs. [Background technology]

[0002] Stink bugs are known as pests. Prior art documents relating to stink bug control agents include, for example, Patent Document 1.

[0003] Patent Document 1 discloses a household stink bug control agent that contains (4-ethoxyphenyl)[3-(3-phenoxy-4-fluorophenyl)propyl](dimethyl)silane and a pyrethroid insecticide and is in the form of a liquid or aerosol agent. Patent Document 1 states that it aims to provide a household stink bug control agent and a stink bug control method that are satisfactory in all respects, including control efficacy, safety, durability, and convenience. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-059413 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention provides a composition for stink bugs with improved residual effectiveness. [Means for solving the problem]

[0006] According to the present invention, there are provided a composition for stink bugs, a spray, and a method for controlling stink bugs, as shown below.

[0007] 1. A composition capable of controlling stink bugs, comprising: A composition for stink bugs comprising monfluorotrin and silafluofen. 2. A composition for stink bugs described in 1., in which the content of the monfluorothrin in the composition for stink bugs is 1 part by mass or more and 500 parts by mass or less when the content of the silafluofen is 100 parts by mass. 3. A composition for stink bugs according to 1. or 2., which is a liquid formulation, an aerosol formulation or a solid formulation. 4. The composition for stink bugs according to 3., which is an aerosol formulation. 5. A composition for stink bugs described in 4., in which the content of the momfluorothrin in the composition for stink bugs is 0.0001% by mass or more and 0.50% by mass or less, when the total amount of the composition for stink bugs is 100% by mass. 6. A composition for stink bugs according to 4. or 5., wherein the content of the silafluofen in the composition for stink bugs is 0.0005% by mass or more and 0.50% by mass or less, when the total amount of the composition for stink bugs is 100% by mass. 7. A composition for stink bugs described in any of 4. to 6., wherein the total content of the monfluorothrin and the silafluofen in the composition for stink bugs is 0.0006% by mass or more and 1.0% by mass or less, when the total amount of the composition for stink bugs is 100% by mass. 8. The composition for stink bugs described in any one of 4. to 7., further comprising a propellant. 9. The composition for stink bugs described in 8., wherein the propellant contains one or more selected from the group consisting of liquefied petroleum gas, dimethyl ether, carbon dioxide gas, and nitrogen gas. 10. A composition for stink bugs according to 8. or 9., wherein the content of the propellant in the composition for stink bugs is 10% by mass or more and 90% by mass or less, when the total amount of the composition for stink bugs is 100% by mass. 11. The composition for stink bugs according to any one of 4. to 10., further comprising a solvent. 12. The composition for stink bugs described in 11., wherein the solvent comprises one or more selected from the group consisting of glycol ethers, paraffinic hydrocarbons, aromatic hydrocarbons, and esters. 13. The composition for stink bugs according to any one of 4. to 12., wherein the period during which the mortality rate, as measured by the following Test Method 1, is 50% or more, is one month or longer. <Test method 1> A steel colander (15 cm in diameter, 7 cm deep) is placed within a frame measuring 100 cm in width, 100 cm in depth, and 3 cm in height, and 35 g to 39 g of the stink bug composition is sprayed evenly over the entire surface of the colander, and the colander is stored in a place out of direct sunlight for a specified period of time. Next, prepare two of the stored strainers, release three test insects (German-winged green stink bugs) into one strainer, and then cover it with the other strainer. Prepare three sets of this, and leave them indoors at a room temperature of 20°C for 24 hours to check the mortality rate. 14. A container; In the container, a composition for stink bugs according to any one of 1. to 13. and Including sprays. 15. The spray is an aerosol spray; 15. The spray according to 14, wherein the pressure inside the container at 35°C is 0.10 MPa or more and 0.50 MPa or less. 16. A method for controlling stink bugs, comprising a step of controlling stink bugs with a composition for stink bugs described in any one of 1. to 13. Effect of the Invention

[0008] According to the present invention, a composition for stink bugs having improved residual effectiveness can be provided. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the present invention will be described based on an embodiment.

[0010] 1. Stink bug composition The composition for stink bugs of this embodiment will be described below.

[0011] The composition for stink bugs of this embodiment is a composition capable of controlling stink bugs, and contains monfluorothrin and silafluofen. The composition for stink bugs of the present embodiment has improved residual effectiveness. In this specification, the term "control" is a concept including killing, repelling, preventing invasion, and the like.

[0012] In the present embodiment, the stink bug refers to an insect belonging to the Hemiptera suborder (Heteroptera) of the Hemiptera order, and examples of such stink bugs include brown marmorated stink bugs, Scott stink bugs, shiny green stink bugs, black stink bugs, quail stink bugs, spiny spotted stink bugs, white spotted stink bugs, spotted stink bugs, green grass stink bugs, southern green stink bugs, rice stink bugs, large spurred spotted stink bugs, and black rice stink bugs; These include stink bugs belonging to the Lygaeoideae family, such as the narrow-eared stink bug and the spider bug, stink bugs belonging to the Coreidae family, such as the narrow-eared stink bug, stink bugs belonging to the Coreidae family, such as the narrow-eared stink bug, stink bugs belonging to the Partidae family, such as the red-spotted stink bug, stink bugs belonging to the Partidae family, such as the spotted stink bug, stink bugs belonging to the Miridae family, such as the red-bearded narrow-green mirid bug and the red-striped mirid bug, and stink bugs belonging to the Circle Bug family, such as the circular stink bug.

[0013] In the composition for stink bugs of this embodiment, by using monfluorotrin and silafluofen in combination at a certain ratio, the residual effect can be further improved. The content of momfluorothrin in the composition for stink bugs of this embodiment, when the content of silafluofen is 100 parts by mass, is preferably 1 part by mass or more, more preferably 3 parts by mass or more, even more preferably 5 parts by mass or more, even more preferably 7 parts by mass or more, even more preferably 8 parts by mass or more, and is preferably 500 parts by mass or less, more preferably 400 parts by mass or less, even more preferably 300 parts by mass or less, even more preferably 200 parts by mass or less, even more preferably 100 parts by mass or less, even more preferably 80 parts by mass or less, even more preferably 60 parts by mass or less, even more preferably 40 parts by mass or less, even more preferably 35 parts by mass or less, and even more preferably 30 parts by mass or less.

[0014] The composition for stink bugs of this embodiment may contain an active ingredient other than monfluorothrin and silafluofen. The active ingredient other than momfluorothrin and silafluofen may include, for example, one or more selected from the group consisting of pyrethrins, permethrin, phthalthrin, cyfluthrin, fenpropathrin, fenothrin, cyphenothrin, etofenprox, and phthalthrin.

[0015] The composition for stink bugs of this embodiment is a liquid formulation (e.g., a pump-type hand spray form, etc.), an aerosol formulation, or a solid formulation, and more preferably an aerosol formulation.

[0016] <Liquid preparation> When the composition for stink bugs of this embodiment is a liquid formulation, for example, a predetermined amount of momfluorotrin and silafluofen are dissolved and mixed in a solvent, and if necessary, one or more selected from the group consisting of water, surfactants, antifreeze agents, preservatives, antioxidants and thickeners are added and mixed to prepare the composition for stink bugs of this embodiment.

[0017] <Aerosol agent> When the composition for stink bugs of this embodiment is an aerosol formulation, the composition for stink bugs of this embodiment can be prepared, for example, by placing a solution in which a predetermined amount of momfluorotrin and silafluofen are dissolved in a solvent, or the above-mentioned liquid formulation, in a container and adding a propellant. The mixing ratio of the propellant, the internal pressure of the container, etc. can be adjusted as desired according to the desired spray characteristics.

[0018] When the composition for stink bugs of the present embodiment is an aerosol formulation, the content of momfluorothrin in the composition for stink bugs of the present embodiment, when the total amount of the composition for stink bugs of the present embodiment is taken as 100% by mass, is preferably 0.0001% by mass or more, more preferably 0.0003% by mass or more, even more preferably 0.0005% by mass or more, even more preferably 0.0008% by mass or more, even more preferably 0.001% by mass or more, even more preferably 0.003% by mass or more, and even more preferably is 0.005% by mass or more, more preferably 0.008% by mass or more, even more preferably 0.010% by mass or more, even more preferably 0.013% by mass or more, and even more preferably 0.015% by mass or more, and from the viewpoint of the balance between immediate effectiveness and economical efficiency, it is preferably 0.50% by mass or less, more preferably 0.10% by mass or less, even more preferably 0.080% by mass or less, even more preferably 0.050% by mass or less, even more preferably 0.040% by mass or less, and even more preferably 0.035% by mass or less.

[0019] When the composition for stink bugs of the present embodiment is an aerosol formulation, the content of silafluofen in the composition for stink bugs of the present embodiment, when the total amount of the composition for stink bugs of the present embodiment is taken as 100% by mass, is, from the viewpoint of further improving the residual effect, preferably 0.0005% by mass or more, more preferably 0.0008% by mass or more, even more preferably 0.001% by mass or more, even more preferably 0.003% by mass or more, even more preferably 0.005% by mass or more, even more preferably 0.008% by mass or more, even more preferably 0.010% by mass or more. % by mass or more, more preferably 0.030% by mass or more, even more preferably 0.050% by mass or more, even more preferably 0.080% by mass or more, even more preferably 0.10% by mass or more, even more preferably 0.11% by mass or more, and even more preferably 0.12% by mass or more, and from the standpoint of the balance between residual effectiveness and economical efficiency, it is preferably 0.50% by mass or less, more preferably 0.40% by mass or less, even more preferably 0.30% by mass or less, even more preferably 0.26% by mass or less, and even more preferably 0.24% by mass or less.

[0020] When the composition for stink bugs of the present embodiment is an aerosol formulation, the total content of momfluorothrin and silafluofen in the composition for stink bugs of the present embodiment, when the total amount of the composition for stink bugs of the present embodiment is taken as 100% by mass, is, from the viewpoint of further improving the residual effect, preferably 0.0006% by mass or more, more preferably 0.0008% by mass or more, even more preferably 0.001% by mass or more, even more preferably 0.003% by mass or more, even more preferably 0.005% by mass or more, even more preferably 0.006% by mass or more, and even more preferably 0.008% by mass or more. % or more, more preferably 0.010% by mass or more, even more preferably 0.030% by mass or more, even more preferably 0.050% by mass or more, even more preferably 0.080% by mass or more, even more preferably 0.10% by mass or more, and even more preferably 0.13% by mass or more, and from the standpoint of the balance between residual effectiveness and economical efficiency, it is preferably 1.0% by mass or less, more preferably 0.50% by mass or less, even more preferably 0.40% by mass or less, even more preferably 0.30% by mass or less, even more preferably 0.28% by mass or less, and even more preferably 0.26% by mass or less.

[0021] When the composition for stink bugs of the present embodiment is an aerosol formulation, the composition for stink bugs of the present embodiment preferably further contains a propellant.

[0022] When the composition for stink bugs of this embodiment is an aerosol agent, the propellant of this embodiment preferably contains one or more types selected from the group consisting of liquefied petroleum gas, dimethyl ether, carbon dioxide gas, and nitrogen gas, and more preferably contains liquefied petroleum gas.

[0023] When the composition for stink bugs of this embodiment is an aerosol agent, the content of the propellant of this embodiment is preferably a specific amount in order to adjust the spray force to an appropriate level for the stink bug to be sprayed. The content of the propellant in the composition for stink bugs of this embodiment is preferably 10% by mass or more, more preferably 30% by mass or more, even more preferably 40% by mass or more, even more preferably 50% by mass or more, and is preferably 90% by mass or less, more preferably 80% by mass or less, and even more preferably 70% by mass or less, when the total amount of the composition for stink bugs of this embodiment is taken as 100% by mass.

[0024] When the composition for stink bugs of the present embodiment is an aerosol or liquid formulation, the composition for stink bugs of the present embodiment preferably further contains a solvent.

[0025] When the composition for stink bugs of the present embodiment is an aerosol or liquid formulation, the solvent of the present embodiment preferably contains one or more selected from the group consisting of glycol ethers (e.g., propylene glycol monomethyl ether, propylene glycol monobutyl ether, etc.), paraffinic hydrocarbons (e.g., normal paraffin, isoparaffin, etc.), aromatic hydrocarbons (e.g., xylene, ethylbenzene, etc.) and esters (e.g., isopropyl myristate, methyl oleate, etc.). The solvent in this embodiment preferably contains a paraffinic hydrocarbon from the viewpoint of a balance between solubility of each component, high volatility taking into consideration staining of the treatment surface, and economic efficiency.

[0026] The composition for stink bugs of the present embodiment may contain, as necessary, one or more agents selected from the group consisting of water, surfactants, antifreeze agents, preservatives, antioxidants, and thickeners.

[0027] The water in this embodiment may include, for example, one or more types selected from the group consisting of tap water, ion-exchanged water, and distilled water.

[0028] The surfactant of the present embodiment may include, for example, one or more surfactants selected from the group consisting of nonionic surfactants and anionic surfactants.

[0029] The nonionic surfactant of the present embodiment may include, for example, one or more selected from the group consisting of polyoxyalkylene allyl phenyl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene allyl phenyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene alkyl phenyl ether formaldehyde condensate, polyoxyethylene-polyoxypropylene block polymer, polyoxyethylene-polyoxypropylene block polymer alkyl phenyl ether, sorbitan fatty acid ester (e.g., sorbitan monooleate, sorbitan laurate, etc.), polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene castor oil ether, and polyethylene glycol fatty acid ester.

[0030] Examples of the anionic surfactant of this embodiment include sodium, calcium, or ammonium salts of alkyl sulfate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, polyoxyethylene benzyl (or styryl) phenyl ether sulfate, or polyoxyethylene-polyoxypropylene block polymer sulfate; alkyl sulfonate, dialkyl sulfosuccinate, alkyl benzene sulfonate (e.g., calcium dodecyl benzene sulfonate, etc.), mono- or di-alkyl naphthalene sulfonate, naphthalene sulfonate formaldehyde condensate, lignin sulfone, etc. The compound may contain one or more selected from the group consisting of sodium, calcium, ammonium or alkanolamine salts of acids, polyoxyethylene alkyl phenyl ether sulfonic acids or polyoxyethylene alkyl ether sulfosuccinates; polyoxyethylene alkyl ether phosphates, polyoxyethylene mono- or di-alkyl phenyl ether phosphates and polyoxyethylene benzyl (or styryl) phenyl ether phosphates, or may contain salts such as sodium or calcium salts of polyoxyethylene-polyoxypropylene block polymer phosphates.

[0031] The antifreeze agent of the present embodiment may contain, for example, one or more selected from the group consisting of ethanol, ethylene glycol, propylene glycol, ethyl cellosolve, butyl carbitol, and 3-methyl-methoxybutanol.

[0032] The preservative of the present embodiment may include, for example, one or more selected from the group consisting of Preventol (registered trademark) D2 (chemical name: benzyl alcohol mono(poly)hemiformal), PROXEL (registered trademark) GXL(S) (chemical name: 1,2-benzoisothiazolin-3-one, 20%), Biohope (registered trademark) and Biohope L (chemical name: organic nitrogen sulfur compound, organic bromine compound), Bestside (registered trademark)-750 (chemical name: isothiazolin-based compound, 2.5 to 6.0%), 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 2-bromo-2-nitropropane-1,3-diol, sodium benzoate, potassium sorbate, sodium dehydroacetate, parachlorometaxylenol, and 2,6-dimethylphenol.

[0033] The antioxidant of the present embodiment may include, for example, one or more selected from the group consisting of tetrakis[methylene-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane (trade name: Tominox (registered trademark) TT, trade name: IRGANOX (registered trademark) 1010 or IRGANOX 1010EDS), butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), propyl gallate, vitamin E, mixed tocopherols, α-tocopherol, ethoxyquin, and ascorbic acid.

[0034] The thickener of the present embodiment may include, for example, one or more selected from the group consisting of PVP K-15 (chemical name: polyvinylpyrrolidone), xanthan gum, polyvinyl alcohol, guar gum, and carboxyvinyl polymer.

[0035] When the composition for stink bugs of the present embodiment is a liquid formulation or an aerosol formulation, the composition for stink bugs of the present embodiment may be used by spraying it directly onto stink bugs, or may be used by spraying it in advance onto places where you do not want stink bugs to approach; from the viewpoint that a user of the composition for stink bugs can exterminate stink bugs without looking at them directly, the composition for stink bugs is preferably used by spraying it in advance onto places where you do not want stink bugs to approach.

[0036] <Solid preparations> When the composition for stink bugs of this embodiment is a solid formulation, the composition for stink bugs of this embodiment can be prepared by impregnating a solid carrier such as a mineral with a solution in which a predetermined amount of momfluorotrin and silafluofen are dissolved in a solvent, or with the above-mentioned liquid formulation. The solid carrier of the present embodiment includes, for example, one or more selected from the group consisting of pumice, bentonite, diatomaceous earth, vermiculite, and silica stone.

[0037] When the composition for stink bugs of the present embodiment is a solid preparation, the composition for stink bugs of the present embodiment can be used by placing it in advance in a location where you do not want stink bugs to approach.

[0038] In the embodiment, the period during which the mortality rate of the stink bug composition as measured by Test Method 1 described below is preferably 50% or more, more preferably 60% or more, even more preferably 70% or more, even more preferably 80% or more, and even more preferably 85% or more is preferably 1 month or more, more preferably 3 months or more, even more preferably 6 months or more, even more preferably 10 months or more, even more preferably 12 months or more, even more preferably 14 months or more, and even more preferably 16 months or more. <Test method 1> A steel colander (15 cm in diameter, 7 cm deep) is placed within a frame measuring 100 cm in width, 100 cm in depth, and 3 cm in height, and 35 g to 39 g of the stink bug composition of this embodiment is sprayed evenly over the entire surface of the colander, and the colander is stored in a place out of direct sunlight for a specified period of time. Next, prepare two of the stored strainers, release three test insects (German-winged green stink bugs) into one strainer, and then cover it with the other strainer. Prepare three sets of this, and leave them indoors at a room temperature of 20°C for 24 hours to check the mortality rate.

[0039] 2. Spray The spray of this embodiment will be described below.

[0040] The spray of the present embodiment includes a container and, within the container, any of the above-described compositions for stink bugs.

[0041] In general, the spray force can be adjusted appropriately depending on the body size of the pest to be sprayed, the distance from the pest to be sprayed, the concentration of the active ingredient, and the like. When the spray is an aerosol spray, the pressure inside the container of the spray of this embodiment at 35° C. is, from the viewpoint of spraying a sufficient amount of the composition for stink bugs onto stink bugs, preferably 0.10 MPa or more, more preferably 0.15 MPa or more, and even more preferably 0.20 MPa or more, and from the viewpoint of a balance between the amount sprayed and economic efficiency, is preferably 0.50 MPa or less, more preferably 0.40 MPa or less, and even more preferably 0.30 MPa or less.

[0042] The capacity of the container in this embodiment is not particularly limited, but is preferably 10 mL or more, more preferably 50 mL or more, even more preferably 100 mL or more, even more preferably 200 mL or more, even more preferably 400 mL or more, and is preferably 5000 mL or less, more preferably 2000 mL or less, even more preferably 1000 mL or less, and even more preferably 500 mL or less.

[0043] 3. How to control stink bugs The stink bug control method of this embodiment will be described below.

[0044] The method for controlling stink bugs of the present embodiment includes a step of controlling stink bugs with the composition for stink bugs of the present embodiment.

[0045] In the method for controlling stink bugs of this embodiment, 2 From the viewpoint of further improving residual effectiveness, the application amount of the composition for stink bugs is preferably 1 g or more, more preferably 5 g or more, even more preferably 10 g or more, even more preferably 20 g or more, even more preferably 30 g or more, and even more preferably 35 g or more, and from the viewpoint of improving the balance between residual effectiveness and economical efficiency, it is preferably 100 g or less, more preferably 50 g or less, even more preferably 40 g or less, and even more preferably 39 g or less.

[0046] Although the embodiments of the present invention have been described above, these are merely examples of the present invention, and various configurations other than those described above can be adopted. Furthermore, the present invention is not limited to the above-described embodiments, and modifications and improvements within the scope of the present invention are included in the present invention. EXAMPLES

[0047] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0048] <Examples 1 to 4> All compounding ratios shown in Table 1 are in parts by weight. Momfluorothrin bulk substance (Sumitomo Chemical Co., Ltd.), silafluofen bulk substance (Dainippon Jochugiku Co., Ltd.), and butyl propylene glycol (chemical name: propylene glycol mono-n-butyl ether, Nippon Nyukazai Co., Ltd.) were mixed in the ratio shown in Table 1, and IP Solvent 1620 (isoparaffin solvent, Idemitsu Kosan Co., Ltd.) was added in the ratio shown in Table 1 to prepare a stock solution. The obtained concentrate was placed in an aerosol can, the aerosol valve was sealed, and LPG (liquefied petroleum gas, manufactured by Koike Chemical Co., Ltd., 0.15 MPa) was added in the blending ratio shown in Table 1 to obtain an aerosol spray containing a composition for stink bugs. The pressure inside the container of the obtained aerosol spray at 35° C. was 0.22 MPa.

[0049] [Table 1]

[0050] <Comparative Example 1> A commercially available aerosol spray for stink bugs made by Company A (active ingredients: pyrethrin, permethrin) was used.

[0051] <Comparative Example 2> A commercially available aerosol spray for stink bugs manufactured by Company B (active ingredients: phthalthrin, cyfluthrin) was used.

[0052] <Comparative Example 3> A commercially available aerosol spray for stink bugs manufactured by Company C (active ingredients: phthalthrin, cyfluthrin) was used.

[0053] <Comparative Example 4> A commercially available aerosol spray for stink bugs manufactured by Company D (active ingredients: momfluorotrin, fenpropathrin) was used.

[0054] [Residual Efficacy Test 1-1] A steel colander (15 cm in diameter, 7 cm deep) was placed within a frame measuring 100 cm wide, 100 cm deep, and 3 cm high, and the stink bug composition was sprayed for a specified number of seconds so that it was evenly distributed over the entire surface of the colander. The colander was then stored in a place out of direct sunlight for a specified period of time (1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 months). In addition, 1m 2 The application amount per unit area was 37 g for Examples 1 to 4 and Comparative Example 3, 40 g for Comparative Example 1, 24 g for Comparative Example 2, and 34 g for Comparative Example 4. As Comparative Example 5, a colander to which no composition for stink bugs was sprayed was also prepared. Next, two of the stored strainers were prepared, three test insects (German-winged green stink bugs, obtained from Sumika Technoservice Co., Ltd.) were released into one strainer, and the other strainer was used to cover it. Three sets of these were prepared and left indoors at room temperature of 20°C for 24 hours, after which the mortality rate was confirmed. The mortality rate (%) was calculated by 100 x (number of dead test insects) / (number of test insects released). The results are shown in Table 2.

[0055] [Table 2]

[0056] [Residual Efficacy Test 1-2] For the stink bug composition of Example 1, a test was also conducted using the same method as in Residual Efficacy Test 1-1, with the storage period being 12, 14, or 16 months. The results are shown in Table 3.

[0057] [Table 3]

[0058] [Residual Efficacy Test 1-3] The test was conducted in the same manner as in Residual Efficacy Test 1-1, except that the test insects used were naturally occurring shiny green stink bugs in 3 sets of 3 each. The results after a storage period of 9 months are shown in Table 4.

[0059] [Table 4]

[0060] [Residual Efficacy Test 2-1] An aluminum sash V-rail cut to a length of 13 cm was placed within a frame measuring 100 cm wide, 100 cm deep, and 3 cm high, and the stink bug composition was sprayed evenly over the entire surface of the aluminum sash V-rail for a specified number of seconds. The composition was then stored in a place out of direct sunlight for specified periods of time (2, 4, 6, and 8 months). In addition, 1m 2 The application amount per unit area was 37 g for Example 1 and Comparative Example 3, 40 g for Comparative Example 1, 24 g for Comparative Example 2, and 34 g for Comparative Example 4. As Comparative Example 5, an aluminum sash V-shaped rail on which the composition for stink bugs was not sprayed was also prepared. Next, three test insects (three German-winged green stink bugs, obtained from Sumika Technoservice Co., Ltd.) were released into the recesses of the aluminum sash V-shaped rail and covered with parafilm. Three sets of these were prepared and left to stand indoors at room temperature of 20°C for 24 hours, and the mortality rate was confirmed. Here, the mortality rate (%) was calculated by 100 x (number of dead test insects) / (number of released test insects). The results are shown in Table 5.

[0061] [Table 5]

[0062] [Residual Efficacy Test 3-1] The test was conducted in the same manner as residual efficacy test 2-1, except that after releasing the test insects and covering them with parafilm, they were left to rest outdoors in an area with a temperature of 2-10°C and out of direct sunlight, and the samples that had been left to rest were then brought indoors at room temperature of 20°C, and the mortality rate was checked 30 minutes after they were brought back. Table 6 shows the results when the aluminum sash V-rail was stored for eight months.

[0063] [Table 6]

[0064] As shown in Tables 1 to 6, the compositions for stink bugs of the Examples had improved residual effectiveness compared to the Comparative Examples. This shows that the composition for stink bugs of the present embodiment can improve residual effectiveness.

[0065] [Residual Efficacy Test 4-1] A steel sieve (15 cm in diameter, 7 cm in depth) was placed in a frame measuring 100 cm in width, 100 cm in depth, and 3 cm in height. The stink bug composition was sprayed onto the sieve for a specified number of seconds so that the stink bug composition was evenly distributed over the entire surface of the sieve. 2 The application amount per unit area was 37 g in Examples 5-6 and Comparative Examples 6-7. In addition, a colander to which the composition for stink bugs was not sprayed was also prepared as Comparative Example 8. Three sets of two colanders were prepared for each example. Next, each colander was placed in a covered outdoor location to avoid direct exposure to rain (including snow) and sunlight. Each colander was stored there for two months. Next, for each example, two of the stored strainers were prepared, and three test insects (German-winged green stink bugs, obtained from Sumika Technoservice Co., Ltd.) were released into one of the strainers, which was then covered with the other strainer. Three sets of this were prepared for each example. Next, the samples were allowed to stand indoors at room temperature of 20° C. for 5 hours, and the knockdown rate was confirmed. Here, the knockdown rate (%) was calculated by the following formula (1). Formula (1): Knockdown rate (%) = (number of test insects knocked down) / (number of test insects released) × 100 Moreover, the knockdown of a test insect refers to a state in which the test insect lies on its back and is no longer able to behave normally. The results are shown in Table 7.

[0066] [Table 7]

[0067] <Examples 5-6, Comparative Examples 6-8> All compounding ratios shown in Table 7 are in parts by weight. Momfluorotrin bulk substance (Sumitomo Chemical Co., Ltd.), silafluofen bulk substance (Dainippon Jochugiku Co., Ltd.), and butyl propylene glycol (chemical name: propylene glycol mono-n-butyl ether, Nippon Nyukazai Co., Ltd.) were mixed in the ratio shown in Table 7, and IP Solvent 1620 (isoparaffin solvent, Idemitsu Kosan Co., Ltd.) was further added in the ratio shown in Table 7 to prepare a stock solution. The obtained concentrate was placed in an aerosol test bottle, the valve for the aerosol test bottle was sealed, and LPG (liquefied petroleum gas, manufactured by Koike Chemical Co., Ltd., 0.15 MPa) was added in the blending ratio shown in Table 7 to obtain an aerosol spray containing a composition for stink bugs. It should be noted that Comparative Example 8 shows the results when the stink bug composition was not sprayed onto the colander.

[0068] [Evaluation of synergistic effects] In Example 6, in order to evaluate the synergistic effect between momfluorotrin and silafluorophene, a theoretical value was calculated using formula (2) based on the Colby method (SR Colby, "Weeds, vol. 15, no. 1", Cambridge University Press, 1967, pp. 20-22) shown below.

[0069] Equation (2): E = X + Y - XY / 100 Here, the symbols in formula (2) have the following meanings: X: Experimental knockdown rate when monfluorotrin was used alone (%) Y: Experimental knockdown rate (%) when silafluorophene was used alone E: Theoretical knockdown rate (%) when using a mixture of monfluorotrin and silafluorophene

[0070] If the experimental value of the knockdown rate when monfluorotrin and silafluorofen are used in combination is greater than the theoretical value E, it means that there is a synergistic effect between monfluorotrin and silafluorofen in the composition for stink bugs. On the other hand, if the experimental value of the knockdown rate when monfluorotrin and silafluorofen are used in combination is equal to or less than the theoretical value E, it means that there is no synergistic effect between monfluorotrin and silafluorofen in the composition for stink bugs.

[0071] The knockdown rate value of Comparative Example 6 was equivalent to the experimental value X. The knockdown rate value of Comparative Example 7 was equivalent to the experimental value Y. The knockdown rate value of Example 6 was equivalent to the experimental value of the knockdown rate when a mixture of momfluorotrin and silafluorophene was used. The theoretical value E calculated from the knockdown rate value of Comparative Example 6 (experimental value X) and the knockdown rate value of Comparative Example 7 (experimental value Y) was 66.7%. Therefore, since the knockdown rate value of Example 6 (100.0%) is greater than the theoretical value E (66.7%), it was confirmed that there is a synergistic effect between momfluorotrin and silafluorofen in the composition for stink bugs.

Claims

1. A composition capable of controlling stink bugs, A composition for stink bugs comprising monfluorotrin and silafluofen.

2. The composition for stink bugs according to claim 1, wherein the content of the monfluorothrin in the composition for stink bugs is 1 part by mass or more and 500 parts by mass or less when the content of the silafluofen is 100 parts by mass.

3. The composition for stink bugs according to claim 1 or 2, which is a liquid formulation, an aerosol formulation or a solid formulation.

4. The composition for stink bugs according to claim 3, which is an aerosol agent.

5. A composition for stink bugs as described in claim 4, wherein the content of the monfluorothrin in the composition for stink bugs is 0.0001 mass% or more and 0.50 mass% or less, when the total amount of the composition for stink bugs is 100 mass%.

6. The composition for stink bugs according to claim 4, wherein the content of the silafluofen in the composition for stink bugs is 0.0005% by mass or more and 0.50% by mass or less, when the total amount of the composition for stink bugs is 100% by mass.

7. The composition for stink bugs according to claim 4, wherein the total content of the monfluorothrin and the silafluofen in the composition for stink bugs is 0.0006% by mass or more and 1.0% by mass or less, when the total amount of the composition for stink bugs is 100% by mass.

8. 5. The stink bug composition of claim 4, further comprising a propellant.

9. The composition for stink bugs according to claim 8, wherein the propellant comprises one or more selected from the group consisting of liquefied petroleum gas, dimethyl ether, carbon dioxide gas, and nitrogen gas.

10. 9. The composition for stink bugs according to claim 8, wherein the content of the propellant in the composition for stink bugs is 10% by mass or more and 90% by mass or less, when the total amount of the composition for stink bugs is 100% by mass.

11. The composition for stink bugs of claim 4, further comprising a solvent.

12. The composition for stink bugs according to claim 11, wherein the solvent comprises one or more selected from the group consisting of glycol ethers, paraffinic hydrocarbons, aromatic hydrocarbons, and esters.

13. The composition for stink bugs according to claim 4, wherein the period during which the mortality rate, as measured by the following Test Method 1, is 50% or more, is one month or more. <Test Method 1> A steel colander (15 cm in diameter, 7 cm in depth) is placed in a frame measuring 100 cm in width, 100 cm in depth, and 3 cm in height, and 35 g to 39 g of the stink bug composition is sprayed evenly over the entire surface of the colander, and the colander is stored in a place out of direct sunlight for a specified period of time. Next, prepare two of the stored strainers, release three test insects (German-winged green stink bugs) into one strainer, and then cover it with the other strainer. Prepare three sets of this, and leave them indoors at a room temperature of 20°C for 24 hours to check the mortality rate.

14. A container; The container contains the composition for stink bugs according to claim 1 or 2, Including sprays.

15. the spray is an aerosol spray, The spray according to claim 14, wherein the pressure inside the container at 35°C is 0.10 MPa or more and 0.50 MPa or less.

16. A method for controlling stink bugs, comprising a step of controlling stink bugs with the composition for stink bugs according to claim 1 or 2.

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