JP6027741B2 - Control methods for harmful arthropods, compositions, electrostatic sprayers - Google Patents

Description

The present invention relates to methods, compositions and electrostatic spraying devices for controlling harmful arthropods, including flying insects.

Conventionally, the ester compound represented by the formula (1) shown below is known to be effective in controlling so-called pests, and is disclosed in Patent Document 1. Hereinafter, arthropods such as pests to be controlled, specifically insects, may be collectively referred to as "harmful arthropods" in the present specification. Further, in the present specification, "control of harmful arthropods" means a change in the behavior of harmful arthropods by repellent, attraction, knockdown or killing. "Effective for control" means supplying an amount of active ingredient that can alter the behavior of the target pest arthropod.

Generally, for the control of harmful arthropods, an active ingredient having a control effect is sprayed by a method such as heating (for example, smoke) or pressurization (for example, gas pressure or mechanical pressure). Directly or indirectly, and continuously or intermittently by contact with harmful arthropods.

Further, a technique called electrostatic spraying capable of forming a liquid Taylor cone and spraying liquid particles from the tip thereof is known in the art (see, for example, Patent Document 2 and Non-Patent Document 1).

Japanese Patent Publication "Japanese Patent Laid-Open No. 11-222463 (published on August 17, 1999)" European Patent Application Publication No. 1399265

Proceedings of the Royal Society --1964, p383-397

There is a demand for a method for efficiently spraying the ester compound represented by the above formula (1) to control harmful arthropods and a composition capable of efficiently spraying.

The present invention has been made in view of such circumstances, and does not require heating (for example, smoke) or pressurization (for example, gas pressure or mechanical pressure) for spraying, and is an effective control treatment. It is an object of the present invention to provide a method for controlling harmful arthropods capable of performing the above. It is also an object of the present invention to provide a composition capable of controlling a wide variety of harmful arthropods. Furthermore, an electrostatic spraying device that does not require heating or pressurization for spraying, can easily spray the composition of the present invention, and can effectively control harmful arthropods. The purpose is also to provide.

As a means for solving the above-mentioned problems, the method for controlling harmful arthropods of the present invention is described by the formula (1).

The composition containing the ester compound shown in (1) is electrostatically sprayed onto the harmful arthropod or the habitat of the harmful arthropod in an amount effective for controlling the harmful arthropod.

Further, the composition of the present invention has the formula (1).

Contains the ester compound represented by, and its electrical resistance value is 1 × 10 ³ Ωm or more and 1 × 10 ⁶ Ωm or less at 20 ° C., and its viscosity is 1 mPa · s or more and 10 mPa · s or less at 20 ° C., and its surface tension is 20. It is characterized in that it is 20 mN / m or more and 40 mN / m or less at ° C.

According to the control method of the present invention, no heating (for example, smoke) or pressurization (for example, gas pressure or mechanical pressure) is required for spraying, and the control treatment can be effectively performed. It is possible to control arthropods. In addition, according to the composition of the present invention, a wide variety of harmful arthropods can be controlled. Further, according to the electrostatic spraying device of the present invention, the composition of the present invention can be easily sprayed without requiring heating or pressurization for spraying, and effective control treatment of harmful arthropods can be performed. Can be done.

It is a schematic diagram which shows the electrostatic spraying apparatus used for spraying the composition of this embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the present invention.

The composition according to the present embodiment is preferably used in the method for controlling harmful arthropods of the present embodiment as described later, and is an ester compound represented by the formula (i) (1) and (ii) dispersion. Contains medium. Further, (ii) among the substances that can be selected as the dispersion medium, the dispersion medium having a physical property adjusting function for adjusting the physical properties of the composition, particularly the electric resistance value, the viscosity and the surface tension (hereinafter, the physical property adjusting component). It may be described as.).

(Ester compound)
The composition of the present embodiment contains an ester compound of the formula (1). Ester compounds are compounds that have excellent control effects on harmful arthropods.

The ester compound of formula (1) is [2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl] methyl = 2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate. .. The ester compound of the formula (1) can be produced, for example, by the method described in JP-A-11-222463.

The ester compound of the formula (1) includes isomers (R-form and S-form) derived from two asymmetric carbon atoms existing on the cyclopropane ring, and isomers derived from the three-dimensional structure defined by the cyclopropane ring. There are isomers (cis isomer, trans isomer) and isomers (E isomer, Z isomer) derived from the double bond of the substituent substituted on the cyclopropane ring, but in the present invention, any active isomer can be used. Those contained in a ratio can be used. The ratio of isomers is, for example, a value determined by the stereoselectivity of the reaction used when producing the present ester compound. Further, each isomer may be mixed and used in an arbitrary ratio.

Examples of the form of the ester compound of the formula (1) include, for example.
[2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl] Methyl = (1R) -2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate [2,3,5,5 6-Tetrafluoro-4- (methoxymethyl) phenyl] Methyl = (1R) -trans-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate [2,3,5,6-tetrafluoro- 4- (Methyl) phenyl] Methyl = (1R) -cis-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate [2,3,5,6-tetrafluoro-4- (methoxymethyl) ) Methyl] methyl = (1R) -trans-2,2-dimethyl-3-((E) -1-propenyl) cyclopropanecarboxylate [2,3,5,6-tetrafluoro-4- (methoxymethyl) Phenyl] Methyl = (1R) -trans-2,2-dimethyl-3-((Z) -1-propenyl) cyclopropanecarboxylate [(2,3,5,6-tetrafluoro-4- (methoxymethyl)) (Phenyl)] Methyl = (1R) -trans-2,2-dimethyl-3-((E / Z = 1/8) -1-propenyl) cyclopropanecarboxylate and the like. Above all, the form of the ester compound of the formula (1) is preferably a (1R) -trans form.

In the ester compound of the formula (1), the carbon to which the carboxyl group is bonded in the cyclopropane ring is at the 1-position, and the carbon to which the substituent having a carbon-carbon double bond is bonded is at the 3-position.

Such ester compounds are present in the composition in a proportion of about 0.1% to 10% by weight, preferably 0.2% by weight to 8% by weight, more preferably 1.0% by weight to 6% by weight. To do.

(Dispersion medium)
The composition of the present embodiment contains a dispersion medium for dissolving or dispersing the ester compound of the formula (1). The dispersion medium is a solvent or solvent mixture, for example, an organic solvent or an organic solvent mixture. The solvent may be a polar solvent or a non-polar solvent, but usually a polar solvent is preferably used.

In the present embodiment, in order to effectively spray the composition, a stable spray of small droplets is generated by an electrostatic spray device as described later. Therefore, it is desired that the composition has the following properties. The properties that the composition should possess are firstly that the compound of formula (1) is uniformly dispersed or dissolved in the composition, and secondly that the composition has an appropriate electrical resistance value, viscosity and surface. It is characterized by having tension, and thirdly, the toxicity of the dispersion medium is low.

The dispersion medium of the composition is appropriately a polyol having one or more hydroxyl groups in one molecule (for example, ethyl alcohol, propylene glycol, triethylene glycol, glycerin, polyethylene glycol, polypropylene glycol, etc.), glycol ether (for example, polypropylene glycol, etc.). Examples thereof include those containing a polyol ether having one or more hydroxyl groups in one molecule such as glycol methyl ether). A particularly suitable polyol ether is dipropylene glycol methyl ether. Other particularly suitable polyol ethers include propylene glycol methyl ether and tripropylene glycol methyl ether.

Further dispersion media include 1-methoxy-2-propanol acetate, 1-butoxy-2-propanol and 1-propoxy-2-acetoxypropane, and oxybis (methoxy) propane.

Such a dispersion medium is preferably present in the composition in a proportion of 65% by mass or more and 99.9% by mass or less, 65% by mass or more and 99% by mass or less, and more preferably 70% by mass or more and 95% by mass or less. Further, such a dispersion medium may be present in the composition in a proportion of 90% by mass or more and 99% by mass or less, or 90% by mass or more and 99.9% by mass or less.

The dispersion medium used in the composition of the present embodiment may be a physical property adjusting component. In the composition of the present embodiment, the physical properties of the composition of the present embodiment can be adjusted by appropriately using the physical property adjusting component. A plurality of physical characteristic adjusting components may be used in combination.

As physical property adjusting components, ester-based solvents, petroleum-based (paraffin-based, aromatic, naphthen-based) solvents, (for example, Isopar L (registered trademark)), silicone oils (for example, decamethyltetrasiloxane, decamethylcyclopentasiloxane) , Dodecamethylcyclohexasiloxane and mixtures thereof), polyethylene glycol, water (eg water for High performance liquid chromatography (HPLC)), and diluted aqueous solutions of electrolytes (eg sodium hydrogen carbonate, sodium acetate, sodium chloride, ascorbin). Diluted solution of acid, citric acid or acetic acid).

For example, the surface tension of the composition may be reduced by adding isoparaffin such as Isopar L. In the present application, a component that regulates the surface tension of a composition may be referred to as a "surface tension adjusting component". The composition may contain, for example, 0% by mass to 9.99% by mass of isoparaffin.

Further, the viscosity of the composition may be adjusted by adding polyethylene glycol having a relatively low average molecular weight such as polyethylene glycol having a mass average molecular weight of more than 200 Da, for example, polyethylene glycol of 200 Da or more and 700 Da or less. In the present application, a component that adjusts the viscosity of such a composition may be referred to as a "viscosity adjusting component".

Furthermore, it is possible to adjust the electrical resistance value of the composition by adding an electrolyte. In the present application, a component that adjusts the electrical resistance value of the composition may be referred to as a "resistivity adjusting component". Suitable electrolytes are known in the art and include, for example, a diluted aqueous solution of alcantate containing a diluted solution of sodium acetate (eg, a 0.4 mass% sodium acetate solution), a diluted aqueous solution of the electrolyte described above, and the like. Can be mentioned.

Further, as a dispersion medium (resistivity adjusting component) that can affect the electric resistance value, surfactants (nonionic surfactant, amphoteric surfactant, anionic surfactant, cationic surfactant) can be mentioned. Be done.

Examples of the surfactant that can be contained in the composition of the present invention include sorbitan stearate and sorbitan oleate as sorbitan fatty acid esters, and glyceryl stearate and glyceryl isostearate as glycerin fatty acid esters. , Polyglyceryl oleate, polyglyceryl stearate, polyglyceryl isostearate, polyglyceryl oleate, etc., and examples of the polyoxyethylene alkyl ether include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, and polyoxyethylene oleyl ether. , Polyoxyethylene styrylphenyl ether and the like, and examples of the polyoxyethylene sorbitan fatty acid ester include coconut oil fatty acid polyoxyethylene sorbitan, polyoxyethylene sorbitan oleate, polyoxyethylene sorbitan stearate and the like, and polyoxyethylene sorbit fatty acid. Examples of the ester include polyoxyethylene sorbit tetraoleate, and other examples include polyoxyethylene hydrogenated castor oil and alkylphenol polyglycol ether.

Examples of the amphoteric tenside include lauryl betaine and stearyl betaine as betaines, di-sodium N-lauryl-p-iminodipropionate and the like as imidazoline derivatives, and lecithin and the like as others.

Examples of the anionic surfactant include sodium lauryl sulfate and triethanolamine lauryl sulfate as alkyl sulfates, and sodium polyoxyethylene lauryl ether sulfate and triethanol polyoxyethylene lauryl ether sulfate as polyoxyethylene alkyl ether sulfates. Amine and the like can be mentioned, examples of the alkylbenzene sulfonate include sodium dodecylbenzene sulfonate, and examples of the polyoxyethylene alkyl ether phosphate include sodium dipolyoxyethylene lauryl ether phosphate and sodium dipolyoxyethylene oleyl ether phosphate. Can be mentioned.

Examples of the cationic surfactant include cetyltrimethylammonium chloride, distearyldimethylammonium chloride and the like as alkylammonium salts.

Further, in the composition of the present embodiment, as a dispersion medium capable of affecting the electric resistance value, a salt of another quaternary amine different from the above, a preservative, a salt of chlorhexidine containing chlorhexidine digluconate, and a salt of chlorhexidine containing chlorhexidine digluconate, and Other air purifying agents and the like, including those disclosed herein, can also be mixed.

Further, when the dispersion medium is a polyol ether, the composition comprises an ester compound represented by the general formula (1) and a dispersion medium for dispersing the ester compound in order to satisfy the properties that the above-mentioned composition should have. The dispersion medium preferably contains the following a), b), and optionally c). The b) resistivity adjusting component and c) surface tension adjusting component are the physical property adjusting components in the present specification.

a) (i) polyol ether represented by the general formula (2) (hereinafter abbreviated as (i) polyol ether)
When,
(Ii) A low vapor pressure component containing at least one compound selected from the group consisting of a dibasic acidic ester and optionally dipropylene glycol b) Resistivity adjusting component c) Surface tension adjusting component

Further, such a composition preferably has a vapor pressure of less than 14 Pa at 20 ° C.

In addition, in the present specification and the scope of the patent claim, "vapor pressure" means "Volatile Organic Compounds (VOC) in Consumer Products (Volatile Organic Compounds) in Consumer Products". "(ARB method 310) means the vapor pressure calculated for the composition excluding any aqueous component." VOC is an organic compound that boils in the range of up to about 260 ° C. at standard pressure.

In the composition of the present embodiment, a) the low vapor pressure component is at least one compound selected from the group consisting of (i) polyol ether and (ii) dibasic acidic ester, and optionally dipropylene glycol. And include. That is, a) the low vapor pressure component contains either one or both of (i) polyol ether and (ii) dibasic acidic ester as an essential component, and if necessary, dipropylene as an optional component. It may contain glycol.

(I) In the general formula (2) representing the polyol ether, R ¹ is an alkyl group having 1 to 4 carbon atoms, and the alkyl group may be linear, branched or cyclic, but linear. It is preferably in the form of a branched or branched chain, and specific examples thereof include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobubutyl group, a sec-butyl group and a tert-butyl group. ..

Further, in the general formula (2), n is 2 or 3. However, when n is 2, R ¹ is not a methyl group.

(I) Examples of the polyol ether include dipropylene glycol ethyl ether, dipropylene glycol-n-propyl ether (hereinafter, may be abbreviated as DPnP), dipropylene glycol-n-butyl ether, tripropylene glycol methyl ether, and tripropylene. Glycolethyl ether, tripropylene glycol-n-propyl ether and the like can be exemplified, and dipropylene glycol-n-propyl ether is preferable.

(I) As the polyol ether, one type may be used alone, or two or more types may be used in combination.

Examples of the dibasic acidic ester (ii) (hereinafter, may be abbreviated as DBE) include dimethyl glutarate and dimethyl adipate.

(Ii) As the dibasic acidic ester, one type may be used alone, or two or more types may be used in combination.

In the present invention, the dibasic acidic ester is preferably one or more selected from the group consisting of dimethyl glutarate and dimethyl adipate.

When the dibasic acidic ester is a mixture of dimethyl glutarate and dimethyl adipate, the ratio of dimethyl glutarate in the mixture is 5% by mass or more and 80% by mass or less, and the ratio of dimethyl adipate is 20. It is preferably mass% or more and 95 mass% or less.

In the composition of the present embodiment, a) the low vapor pressure component is present in a proportion of 10% by mass or more and 98.9% by mass or less, preferably 75% by mass or more and 98.9% by mass or less.

When the composition of the present embodiment contains (i) polyol ether, (i) polyol ether in the composition is 10% by mass or more and 99.9% by mass or less, preferably 20% by mass or more and 95% by mass or less. More preferably, it exists in a proportion of 30% by mass or more and 90% by mass or less.

When the composition of the present invention contains (ii) dibasic acidic ester, the (ii) dibasic acidic ester in the composition is 10% by mass or more and 99.9% by mass or less, preferably 20% by mass or more and 95% by mass. % Or less, more preferably 30% by mass or more and 90% by mass or less.

When the composition of the present invention contains dipropylene glycol, the dipropylene glycol in the composition is 10% by mass or more and 99.9% by mass or less, preferably 20% by mass or more and 95% by mass or less, more preferably 30% by mass. It exists in a proportion of% or more and 90 mass or less.

b) As the resistivity adjusting component, a component known to those skilled in the art that can adjust the resistivity of the composition can be used, and the above-mentioned resistivity adjusting component can be exemplified.

For example, water contains a minimal amount of electrolyte and its resistivity is typically 1 x 10 ¹ Ωm or higher, more typically 1 x 10 ³ Ωm or higher, and particularly typically 1 x 10 or higher. ^{It is 4} Ωm or more, most typically 1 × 10 ⁵ Ωm or more, for example, 1 × 10 ⁶ Ωm or more, and ^{more often 1 × 10 7} Ωm or more.

In the present invention, the water used as the resistivity adjusting component is preferably water having a purity equal to or higher than that of deionized water or water for high performance liquid chromatography (HPLC).

The electrolyte can be added, for example, as an aqueous solution. Examples of the electrolyte include the above-mentioned electrolytes.

When the composition of the present invention contains an electrolyte, the content of the water component in the composition is preferably 0.5% by mass or more and 10% by mass or less, and more preferably 1% by mass or more and 8% by mass or less. Is more preferable.

b) As the resistivity adjusting component, one type may be used alone, or two or more types may be used in combination.

When the composition of the present invention contains b) a resistivity adjusting component, the b) resistivity adjusting component in the composition is preferably 0.5% by mass or more and 5% by mass or less, more preferably 0.7% by mass. It exists in a proportion of 4.5% by mass or more, more preferably 1% by mass or more and 4% by mass or less.

c) Examples of the surface tension adjusting component include silicone oils such as isoparaffin (for example, Isopar L); decamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and mixtures thereof.

c) As the surface tension adjusting component, one type may be used alone, or two or more types may be used in combination.

When the composition of the present invention contains c) a surface tension adjusting component, the c) surface tension adjusting component in the composition is 0.5% by mass or more and 10% by mass or less, preferably 1% by mass or more and 10% by mass or less. , More preferably 2% by mass or more and 10% by mass or less, and further preferably 3% by mass or more and 10% by mass or less.

The composition of the present invention may contain other components in addition to the above ester compounds, a) low vapor pressure component, b) resistivity adjusting component, and c) surface tension adjusting component.

Examples of the other component include a viscosity adjusting component. For example, the viscosity of the composition can be increased by containing the above-mentioned polyethylene glycol or glycerin.

Further, the composition of the present invention may contain a small amount of a fluorescent agent within a range that does not affect the overall properties, and for example, Uvitex-OB or the like is contained in an amount of 1% by mass or less. be able to.

When such a composition has a vapor pressure of less than 14 Pa at 20 ° C., the composition used for controlling harmful arthropods conforms to the regulation of VOC content. For example, the General Consumer Product Regulations (Section 2) (Rules) in California, USA, regulate the sale, supply, application for sale, or manufacture of consumer products containing VOC beyond the specified limit at the time of sale or manufacture. However, the composition can be a composition that also complies with such regulations.

For the composition having the above composition, the methods and devices shown below are used for measuring the physical properties.

First, the electrical resistance value of the composition can be measured with a specific resistance meter (manufactured by HORIBA, Ltd., model number pH / ION / COND METER F-55) using a liquid resistance cell. The measured value is obtained as a value in units of MΩ · m.

The surface tension of the composition can be measured using a contact angle / surface tension meter (manufactured by Kyowa Interface Science Co., Ltd., model number DM-501) based on the pendant drop method. The measured value is obtained as a value in units of mN / m.

Further, the viscosity of the composition can be measured using a rotational viscometer (manufactured by Toki Sangyo Co., Ltd., model number RB85L). The measured value is obtained as a value in units of mPa · s. As the measuring method, a method conforming to "JIS Z8803 Liquid Viscosity-Measuring Method" can be used.

Then, the diameter of the droplets of the composition after spraying is determined by using the space particle size distribution measuring device Aero Particle Sizer Model 3321 (manufactured by TSI Instruments) or Scanning Mobility Particle Sizer Model 3936 (manufactured by TSI Instruments). It can be measured as "diameter". The measured value is obtained as a value in units of nm or μm. The average particle size is a value measured using Model 3936 for the range of 100 nm or more and 500 nm (that is, 0.5 μm) or less, and Model 3321 is used for the range larger than 0.5 μm and 10 μm or less. The value to be measured was adopted.

The electrical resistance value of the composition can be appropriately adjusted to be in the range ^{of 1 × 10 3} Ωm or more and 1 × 10 ^{6 Ωm or less at 20 ° C.} Further, the viscosity of the composition can be appropriately adjusted to be in the range of 1 mPa · s or more and 10 mPa · s or less at 20 ° C. Further, the surface tension of the composition can be appropriately adjusted to be in the range of 20 mN / m or more and 40 mN / m or less at 20 ° C. By setting the value of each physical property in the above range, the composition can be satisfactorily sprayed by using the electrostatic spraying device described later.

In addition, a fragrance or an air purifying agent can be added to the composition used in the present invention as other contained components.

Examples of the fragrance include essential oils and other fragrance oils. Then, as the fragrance, only a part of all the fractions (component oils) contained in these oils may be used.

More specifically, the above-mentioned fragrances are preferably oils such as Melaleuca oil, tea tree oils such as terpinen-4-ol type; and dog hacker oils such as Nepeta cateria and refined oils of Nepeta cateria; Examples thereof include a fraction of dog hacker oil such as a fraction containing nepetalactone; a time oil such as oil of Tachijakousou (Thymus vulgaris); a fraction of time oil such as a fraction containing timole.

Further, the fragrance such as fragrance oil is often a mixture containing a plurality of types of compounds having different skeleton chain lengths or a mixture containing a plurality of types of stereoisomers. Such a mixture is used. May be good.

Among the above, as the fragrance, a component oil of one or more kinds of oils selected from the group consisting of tea tree oil, catnip oil and thyme oil is preferable.

When the composition of the present invention contains a fragrance oil, the content of the fragrance oil in the composition is preferably 5% by mass to 35% by mass.

Further, as the fragrance oil, one having a vapor pressure of 270 Pa or less at 20 ° C. is preferable.

Specific examples of the air purifying agent include an active air cleaner component, an active antibacterial component, an active antifungal component, and an active antiallergic component.

Here, the "active air cleaner component" is a substance having a deodorizing activity.

The "active antibacterial component" is a substance having an activity of inhibiting the growth of bacteria.

The "active antifungal component" is a substance having an activity of inhibiting the growth of a fungus.

The "active antiallergic component" is a substance that suppresses the activity of an allergen substance.

As such an air purifying agent, a substance exhibiting a single function among the functions exemplified as the active air cleaner component, the active antibacterial component, the active antifungal component, and the active antiallergic component may be used. A substance that is expected to exhibit a plurality of functions may be used. As such a substance expected to exhibit a plurality of functions, a preferable compound as an air purifying agent is, more specifically, a polyhexamethylene biggeruanide polymer, a polyhexamethylguanide polymer, or an alkyl. Dimethylbenzylammonium chloride, octyldecyldimethylammonium chloride, chlorhexidine, chlorhexidine digluconate, benzalkonium chloride, sodium hypochlorite, 2-phenylphenol, polyethylene glycol 300, 2-benzyl-4-chlorophenol, 2- Examples thereof include phenoxyethanol, glutaaldehyde, phthalaldehyde, chloroxylenel, trichlorophenol, phenol, silver salts (particularly water-soluble silver salts), hexachlorophene, peracetic acid, lactic acid, pergic acid, potassium permanganate, and potassium peroxymonosulfate. ..

When the composition of the present invention contains an air purifying agent, the content of the air purifying agent in the composition is preferably 0.05% by mass or more and 20% by mass or less, preferably 0.1% by mass or more. It is more preferably 17% by mass or less, and particularly preferably 0.1% by mass or more and 15% by mass or less.

Examples of the active antibacterial component include triclosan, trichlorocarbanilide, isopropylmethylphenol, N- (dichlorofluoromethylthio) -phthalamide, N'-(dichlorofluoromethylthio) N, N'-dimethyl-N'-phenyl-sulfamide, and the like. Polyoctylpolyaminoethylglycine, thiaventazole, chlorine dioxide, 2-bromo-2-nitroethanol, 2-bromo-2-nitropropane-1,3-diol, 2 bromo-2-nitropropanol, 1-bromo-1 -Nitropropanol, 1,4-dibromo-1,4-dinitrobutanediol-2,3-cetylpyridinium, 1-bromo-1-nitro-2-methylpropanol-2-cetylpyridinium and cetylpyridinium chloride, benzethonium chloride, Further may include acrinol, povidone iodo, mercurochrome, chloramphenicol, frradiomycin sulfate, gentamycin sulfate, oxytetracycline hydrochloride, polymixin B sulfate, tricomycin, glyceoglubin.

Examples of the active antifungal component include benzoic acid and its salt, sorbic acid and its salt, paraoxybenzoic acid esters, sodium dehydroacetate, propionic acid, polylysine, thiapendazole; linalol, geraniol, nerol, citronellol, α-terpineol. , Tarpinen-4-ol, isopregol and other terpene alcohols; 2,4-dimethyl-3-cyclohexene-1-methanol, 4-isopropylcyclohexanol, 4-isopropylcyclohexanemethanol, 1- (4-isopropylcyclohexyl) -ethanol , 2,2-Dimethyl-3- (3-methylphenyl) -propanol and other alicyclic alcohols having 7 to 15 carbon atoms; benzyl alcohol, phenylethyl alcohol, phenylpropyl alcohol, carbacrol, eugenol and the like having 7 carbon atoms. ~ 15 arylalkyl alcohols or alkylaryl alcohols can be further mentioned.

Examples of the active anti-allergic component include hydroxyapatite, epicatechin, epigallocatechin, epicatechin gallate, epigallocatechin gallate, gallic acid and ester compounds of gallic acid and alcohols having 1 to 4 carbon atoms. it can.

Active air cleaner components for deodorization include tannins, polyphenols such as flavonoids (catechol, flabanone, flavanol, flavon, flavonol, isoflavone), cyclodextrin, lauryl methacrylate, geranyl chloride, 4-hydroxy-6-. Methyl-3- (4-methylpentanoyl) -2-pyrone, formalin, glyoxal, sodium bicarbonate, sodium sulfite, dihydroxy-acetone, 3,5,5-trimethylhexanol, β-ethoxypropionaldehyde, glutaroaldehyde, Metaacrylic acid ester, maleic acid ester, maleic acid monoamide, maleic acid imide, fumaric acid ester, β-acylacrylic acid and its salts, citronellyl senesionate, 1,3-pentadiene-1-carboxylic acid alkyl ester, pinan hydroper Oxide, p-cymenperoxide, 1,2-propylene oxide, 1,2-butylene oxide, glycidyl ether, octaacetylsaccharose, Fe (III) -octacarboxyphthalocyanine, Fe (III) -tetracarboxyphthalocyanine, 5-methyl -2-Isopropyl-2-hexenal, p-butoxyphenol, catechol, hydroquinone, 4-methylcatechol, 1,2,4-trihydroxybenzene, 3-methylcatechol, 3-methoxycatechol, carnosol, rosmanol, brazilin, hematoxylin , Ciconin, mylicetin, baicalein, baicalin, citral, vanillin, coumarin can be further mentioned.

Examples of the composition according to the present embodiment include the following compositions.

Further, as an example of a preferable composition of the present embodiment, a dispersion medium containing the above ester compound and a) low vapor pressure component, b) resistivity adjusting component, and c) surface tension adjusting component with respect to the composition. , Are in the range shown in Table 2 below.

As an example of a preferable composition of the present embodiment, more specifically, the above-mentioned ester compound with respect to the composition, a) a low vapor pressure component, b) a resistivity adjusting component, and c) a surface tension adjusting component are included. Examples of the dispersion medium have a content in the range shown in Tables 3 to 6 below.

When the composition of the present embodiment contains the other components described above, it is composed of the following composition ratio.

First, when perfume oil, which is a perfume component, is contained as another contained component, the composition according to the present embodiment is composed of the composition ratios shown in Table 7 below.

When a disinfectant compound is contained as another contained component, the composition according to this embodiment is composed of the composition ratios shown in Table 8 below.

(Harmful arthropod)
Targets to be controlled using the composition of the present embodiment include arthropods such as insects and mites, and particularly harmful arthropods such as harmful insects and harmful mites. Specific examples include the following.

Lepidoptera: Meiga such as Nikameiga, Kobunomeiga, Noshimemadarameiga, Sujikonamadarameiga, Spodoptera frugiperda, Spodoptera frugiperda, Spodoptera frugiperda, Spodoptera frugiperda, Spodoptera frugiperda, Spodoptera frugiperda, Spodoptera frugiperda , Lepidoptera, Turnip moth, Dark sword-grass, etc., Agrotis spp., Helicoverpa spp., Heliothis spp., Konaga, Ichimonjiseri, Iga, Koiga, etc.

Diptera: Culex such as Culex and Kogata Akaieka, Aedes such as Nettaishimaka and Hitosujishimaka, Anthomyiidae such as Stable fly, Chironomus, Housefly, Housefly, Psychodidae, Housefly, Psychodidae, etc. Anthomyiidae, Houseflies, Houseflies, Psychodidae, Psychodidae, Houseflies, Aedes, Chironomus, Stable flies, Culexes, etc.

Dictyoptera: German cockroach, Smokybrown cockroach, American cockroach, Brown cockroach, Oriental cockroach, etc.

Hymenoptera: hornets, wasps, wasps, wasps, wasps, hornets, hornets, hornets, hornets, hornets, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps, wasps , Core hornets, hornets such as Yamato hornets, giant hornets, hornets, hornets, hornets, vespa ducalis, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets, hornets ..

Hidden wing: dog fleas, cat fleas, human fleas, etc.

Lice: Human lice, lice, head lice, body lice, etc.

Booklices: Booklices.

Termites: Yamato termites, Yeshiro ants, Eastern subterranian termites, Western subterranian termites, Dark Southern subterranian termites, Aridland subterranian termites, dessert subterranian termites and other subterranian termites, American termites and other drywood termites. Kind, dumpwood termites such as Nevada dumpwood termite.

Hemiptera: Unkas such as Himetobiunka, Tobiirounka, Sejirounka, Leafhoppers such as Tsumaguro Yokobai, Taiwan Tsumaguro Yokobai, Abramushi, Aokusakamemushi, Hosohelikamemushi, Otogeshirahoshikamemushi, Togeshirahoshikamemushi Stink bugs such as stink bugs, stink bugs, stink bugs, stink bugs, stink bugs, stink bugs such as stink bugs, stink bugs, stink bugs, etc.

Coleoptera: Coleoptera such as Himekatsuobushimushi, Himemarukatsuobushimushi, Western corn root worm, Southern corn root worm, Koganemushi such as Douganebuibui, Himekogane, Kokuzoumushi, Rice weevil, Watamizoumushi, Azukizoumushi, etc. Tenebrionidae, Red Flour Beetle, etc., Chrysomelidae, Chrysomelidae, Chrysomelidae, Chrysomelidae, Epilachna spp. , Aoba Arigata leaf beetle, etc.

Total wing: Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, etc.

Orthoptera: mole crickets, grasshoppers, crickets, etc.

Mites: Leopard mites such as Kona leopard mite, Yake leopard mite, Kona mite such as Tyrophagus putrescentiae, Wheat mite, Dermanyssus gallinus, Dermanyssus gallinus, Dermanyssus gallinus, Dermanyssus gallinus, Dermanyssus gallinus, Dermanyssus gallinus, Dermanyssus gallinus , Nami spider mites, Acaridae spider mites, Mikan spider mites, apple spider mites and other spider mites, Takara mites, Futatogechi ticks and other mites, and red mites, red mites and other mites.

Centipedes such as red-headed centipedes and red-headed centipedes; pill bugs such as pill bugs and red-headed centipedes; pill bugs such as pill bugs and pill bugs; gastropods such as Lehmannia valentens and red-back spiders; etc.

(Control method)
The method for controlling harmful arthropods using the above-mentioned composition is carried out by electrostatically spraying the above-mentioned composition onto the habitat of the harmful arthropod or the harmful arthropod to be treated. Electrostatic spraying is performed using an electrostatic spraying device.

The electrostatic spray device flows a liquid inside a tubular spray electrode and applies a voltage between the spray electrode and a reference electrode (discharge electrode) provided in the vicinity of the spray electrode, thereby causing the inside of the spray electrode. Apply electrostatic force to the flowing liquid. The relative positions of the spray electrode and the reference electrode are not particularly limited, but for example, the reference electrode may be provided so as to face the spray electrode. Then, an electrostatic repulsive force is generated in the liquid in the spray electrode, so that the liquid is miniaturized. Upon spraying, the liquid exhibits, for example, cone jet mode at the tip of the spray electrode. This type of spraying method is well known in the art as published by Sir Geoffrey Taylor in the Proceedings of the Royal Society, 1964, p383-397. The voltage applied between the spray electrode and the discharge electrode is preferably 1 kV or more and 30 kV or less.

An example of a suitable electrostatic spraying device is described in European Patent Publication No. 1399265 and is illustrated by reference to FIG.

In the electrostatic spray device shown in the figure, the tubular spray electrode 1 is housed inside a spray recess 2 provided on the side surface (spray discharge surface 5) of the main body of the electrostatic spray device, and is paired with the spray electrode 1. The discharge electrode 3 forming the above is similarly housed in the discharge recess 4 provided on the side surface (spray discharge surface 5) of the main body of the electrostatic spray device. The charged composition is sprayed from the spray electrode 1 to form atomized particles of the composition. In the discharge electrode 3, a voltage opposite to that of the atomized particles of the charged composition is applied to attract the sprayed atomized particles, thereby deflecting the flow direction of the atomized particles. For example, the spray electrode 1 comprises a 27 gauge metal or conductive plastic capillary, and the discharge electrode 3 comprises a stainless steel sharpened pin with a diameter of 0.6 mm.

The spray electrode 1 and the discharge electrode 3 are electrically connected to the drive circuit 10 via seed metal tubes 6 and 7, and one electrode is a positive electrode and the other is a negative electrode (for example, the spray electrode 1 is a positive electrode and the discharge electrode 3 is a positive electrode 3). Can be applied to the negative electrode).

The spray discharge surface 5 is formed using a dielectric material. In the electrostatic spray device of the present embodiment, the spray discharge surface 5 can be formed by using, for example, polypropylene.

Further, the spray discharge surface 5 is provided with a spray recess 2 for accommodating the spray electrode 1 and a discharge recess 4 for accommodating the discharge electrode 3 arranged in the vertical direction (gravity direction). In the electrostatic spray device of the present embodiment, the spray discharge surface 5 is a flat surface except for the places where the spray dents 2 and the discharge dents 4 are provided.

However, not limited to this, the spray discharge surface 5 is sufficiently charged with the mist-like composition ejected from the spray electrode 1, and the charged mist-like composition is attracted and deflected by the discharge electrode 3. As long as other dielectric materials can be used, or curved surfaces can be used.

The composition to be sprayed using the electrostatic spray device is held in the liquid storage tank 8 and is supplied to the spray electrode 1 via a pump and a pipe (not shown). Further, the liquid storage tank 8 is connected to the outside through an air introduction small hole 9 so that the inside does not become a negative pressure with the supply of the composition.

Further, if the composition is repeatedly sprayed using the electrostatic spraying device, the composition in the liquid storage tank 8 is consumed. In this case, in order to continue using the same electrostatic spraying device, the following embodiment Any of the above can be adopted.

First, as a first aspect, the electrostatic spray device may be configured so that the composition can be added to the same liquid storage tank 8. In this case, the liquid storage tank 8 may be provided detachably from the electrostatic spray device, and the composition may be added to the removed liquid storage tank 8 and then reattached to the electrostatic spray device. Further, the liquid storage tank 8 may be fixed to the electrostatic spray device, and an additional port for adding the composition may be separately provided in the liquid storage tank 8.

Further, as a second aspect, in the electrostatic spray device, the liquid storage tank 8 is provided so as to be replaceable, and the composition can be added by replacing the liquid storage tank 8 with a separate liquid storage tank in which the composition is held. It may be configured in. For example, in the electrostatic spray device, the liquid storage tank in which the composition is held may be configured as a cartridge-type replacement member so that it can be replaced as appropriate. In that case, as a specific configuration of the cartridge, those shown in Japanese Patent Publication No. 2008-508150 can be mentioned as an example.

Of course, when the composition held in the liquid storage tank 8 is used up, it may become unusable (that is, the electrostatic spray device has a disposable configuration).

According to such an electrostatic spray device, first, the composition is supplied from the storage tank 8 into the tubular spray electrode 1, and a high voltage is applied to the composition in the spray electrode 1. As described above, the composition is charged because it has an electric resistance in a predetermined range, and is ejected from the tip of the spray electrode 1 by electrostatic force. Since the injected composition is charged with the electric charge applied to the spray electrode 1, it is repelled by the Coulomb force and is sprayed into the space while being miniaturized. At this time, as described above, the composition has a viscosity in a predetermined range and a surface tension in a predetermined range, so that the composition is satisfactorily injected and refined.

For example, when the device is energized by the drive circuit 10 by inserting a battery or by the action of a built-in electronic timer, the liquid in the liquid storage tank 8 is very fine so that it evaporates quickly according to the vapor pressure and the ambient conditions in the vicinity of the device. It is discharged from the spray electrode 1 in various forms. The discharge rate can be determined by the effective amount of the ester compound for the target harmful arthropod.

The electrostatic sprayer can be adapted to feed the compositions according to the invention occasionally (eg, in a constant load cycle) or continuously. The donation rate may be, for example, up to 5 g or up to 3 g of the composition per day, but is not limited to such levels.

In such electrostatic spraying devices, less volatile composition components may deposit on or around the spray electrode, which is a general limitation of electrostatic spraying devices. When component deposition occurs, the spray electrode can be partially clogged or clogged, making electrostatic spraying of the composition inefficient or impossible. This can occur especially if the spray electrode is a thin tube.

However, when the composition of the present embodiment is used as the liquid to be sprayed by the electrostatic sprayer, a relatively high concentration of the ester compound (for example, 1.2 of the ester compound) is used for 14 days in a load cycle of spraying for 25 seconds in 2 minutes. When sprayed at (% by mass), stable spraying was possible with little or no deposition on or around the spray electrode.

Since the composition sprayed by electrostatic spraying is observed in the form of mist, the presence or absence of actual spraying is qualitatively observed by visually inspecting the vicinity of the spray electrode (specifically, the spray electrode 1 in FIG. 1). You can judge.

For the quantification of the composition sprayed by electrostatic spraying, atomized particles are collected in the vicinity of the electrostatic spraying device and the ester compound is prepared by a method suitable for the type of ester compound used (for example, HPLC or spectrophotometry). Can be achieved by quantifying.

It can also be done by monitoring the mass change of the entire electrostatic spray device or the liquid storage tank (specifically, the liquid storage tank 8 in FIG. 1).

The effect of the control treatment using such an electrostatic spray device becomes possible through a series of means known to those skilled in the art. For example, 50% of the pest population can be quantitatively analyzed as the time to knockdown (KD50) or death (KT50) in a sized test chamber (eg Peet-Grady chamber).

By doing so, the composition which is solid at room temperature can be satisfactorily electrostatically sprayed on the habitat of the harmful arthropod or the harmful arthropod. Therefore, the following effects can be obtained.

That is, according to the control method of the present embodiment, the composition containing the ester compound represented by the formula (1) is sprayed by electrostatic spraying to heat for spraying the composition (for example, smoke). , Pressurization (eg, gas pressure or mechanical pressure) is not required, and the spraying of the ester compound can be started and stopped immediately. Therefore, the amount of the ester compound sprayed can be easily controlled, and the waste of the ester compound can be suppressed. Therefore, according to the control method of the present embodiment, it is possible to effectively control harmful arthropods.

Further, in the control method of the present embodiment, since the electric resistance value, viscosity, and surface tension of the composition containing the ester compound represented by the formula (1) are within a predetermined range, electrostatic spraying can be performed. It has suitable physical properties. Therefore, the composition can be reliably sprayed and harmful arthropods can be treated.

Further, in the control method of the present embodiment, the composition can be reliably sprayed by using an apparatus suitable for electrostatic spraying.

Further, according to the composition of the present embodiment, the composition containing the ester compound represented by the formula (1), which is solid under standard atmosphere, has an electric resistance value, a viscosity, and a surface tension within a predetermined range. Since it has, it is possible to control a wide range of harmful arthropods, and it is possible to obtain a composition suitable for electrostatic spraying.

Further, in the electrostatic spraying device of the present embodiment, the composition can be easily sprayed without requiring heating (for example, smoke) or pressurization (for example, gas pressure or mechanical pressure) for spraying. .. Therefore, since this device can easily control the spray amount, it is possible to suppress the waste of the ester compound as an active ingredient, and it is possible to effectively control harmful arthropods.

The present invention can also be configured as follows.

In the control method according to the present invention, the electrical resistance value of the composition is 1 × 10 ³ Ωm or more and 1 × 10 ⁶ Ωm or less at 20 ° C., and the viscosity of the composition is 1 mPa · s or more and 10 mPa · s at 20 ° C. Below, it is preferable that the surface tension of the composition is 20 mN / m or more and 40 mN / m or less at 20 ° C.

In the control method according to the present invention, it is preferable that the composition contains the following (i) and (ii). (I) 0.1% by mass or more and 10% by mass or less of the ester compound, (ii) polyol having one or more hydroxyl groups in one molecule, polyol ether having one or more hydroxyl groups in one molecule, 1-methoxy-2 -A dispersion medium containing at least one compound selected from the group consisting of propanol acetate, 1-butoxy-2-propanol, 1-propoxy-2-acetoxypropane, and oxybis (methoxy) propane, and a physical property adjusting component 90. Mass% or more and 99.9% by mass or less (however, the physical property adjusting component is 0.5% by mass or more and 25% by mass or less with respect to the total amount of the composition).

In the control method according to the present invention, it is preferable that the composition contains the ester compound and a dispersion medium for dispersing the ester compound, and has a vapor pressure of less than 14 Pa at 20 ° C.
(However, the dispersion medium includes a) and b).

a) (i) The following general formula (2)

(In the formula, R ¹ is an alkyl group having 1 to 4 carbon atoms, n is 2 or 3, but when n is 2, R ¹ is not a methyl group.)
Polyester ether represented by
(Ii) A low vapor pressure component containing a dibasic acidic ester and at least one compound selected from the group consisting of b) a resistivity adjusting component).

In the control method according to the present invention, it is preferable that the low vapor pressure component further contains dipropylene glycol.

In the control method according to the present invention, it is preferable that the dispersion medium further contains c) a surface tension adjusting component.

In the control method according to the present invention, a) the low vapor pressure component is selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol-n-propyl ether, dipropylene glycol-n-butyl ether and dibasic acidic ester. It is preferable to contain at least one compound.

In the control method according to the present invention, it is preferable that the a) low vapor pressure component contains dipropylene glycol-n-propyl ether.

In the control method according to the present invention, it is preferable that the dispersion medium contains the following a), b) and c).

a) Low vapor pressure component is 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) Resistivity adjusting component is 0.5% by mass or more and 5% by mass based on the total amount of the composition. % Or less c) The surface tension adjusting component is 0.5% by mass or more and 10% by mass or less with respect to the total amount of the composition.

In the control method according to the present invention, it is preferable that the dispersion medium contains the following a), b) and c).

a) As a low vapor pressure component, the compound of the general formula (2) is 10% by mass or more and 98.9% by mass or less based on the total amount of the composition. b) As a resistance adjusting component, a 0.4% sodium acetate aqueous solution However, 0.5% by mass or more and 5% by mass or less with respect to the total amount of the composition c) Isoparaffin as a surface tension adjusting component is 0% by mass or more and 9.99% by mass or less with respect to the total amount of the composition.

In the control method according to the present invention, it is preferable that the dispersion medium contains the following a), b) and c).

a) As the low vapor pressure component, at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol-n-propyl ether, dipropylene glycol-n-butyl ether and dibasic acidic ester is described above. 75% by mass or more and 99.4% by mass or less based on the total amount of the composition b) Sodium acetate as a resistance adjusting component is 0.0005% by mass or more and 0.1% by mass or less based on the total amount of the composition. And water is 0.49% by mass or more and 4.995% by mass or less based on the total amount of the composition c) Isoparaffin as a surface tension adjusting component is 0% by mass or more and 9.99% by mass based on the total amount of the composition. Mass% or less.

In the control method according to the present invention, the dispersion medium is a) dipropylene glycol-n-propyl ether as a low vapor pressure component, which is 10% by mass or more and 89.4% by mass or less based on the total amount of the composition. And the dibasic acidic ester is preferably contained in an amount of 10% by mass or more and 89.4% by mass or less based on the total amount of the composition.

In the control method according to the present invention, it is preferable that the dispersion medium contains, as the low vapor pressure component, a dibasic acidic ester in an amount of 10% by mass or more and 45% by mass or less based on the total amount of the composition.

In the control method according to the present invention, the electrostatic spraying is performed between supplying the composition to the inside of a tubular spray electrode and the spray electrode and the discharge electrode paired with the spray electrode. It is preferable to include applying a voltage such that the composition becomes liquid particles and spraying the composition from the spray electrode.

In addition, in this specification, a "liquid particle" means a particle formed by a liquid, and the shape and size thereof are not particularly limited. The shape may include, for example, a spherical shape, but is not limited to the shape. The size is also not particularly limited, but in the case of, for example, a spherical liquid particle, the diameter can be, for example, 1 nm to 1000 μm, but the size is not limited.

The composition according to the present invention preferably contains the following (i) and (ii). (I) 0.1% by mass or more and 10% by mass or less of the ester compound, (ii) polyol having one or more hydroxyl groups in one molecule, polyol ether having one or more hydroxyl groups in one molecule, 1-methoxy-2 -A dispersion medium containing at least one compound selected from the group consisting of propanol acetate, 1-butoxy-2-propanol, 1-propoxy-2-acetoxypropane, and oxybis (methoxy) propane, and a physical property adjusting component 90. Mass% or more and 99.9% by mass or less (however, the physical property adjusting component is 0.5% by mass or more and 25% by mass or less with respect to the total amount of the composition).

The composition according to the present invention preferably contains the ester compound and a dispersion medium for dispersing the ester compound, and has a vapor pressure of less than 14 Pa at 20 ° C.
(However, the dispersion medium includes a) and b).

a) (i) The following general formula (2)

(In the formula, R ¹ is an alkyl group having 1 to 4 carbon atoms, n is 2 or 3, but when n is 2, R ¹ is not a methyl group.)
Polyester ether represented by
(Ii) A low vapor pressure component containing a dibasic acidic ester and at least one compound selected from the group consisting of b) a resistivity adjusting component).

In the composition according to the present invention, it is preferable that the low vapor pressure component further contains dipropylene glycol.

In the composition according to the present invention, it is preferable that the dispersion medium further contains c) a surface tension adjusting component.

In the composition according to the present invention, a) the low vapor pressure component is selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol-n-propyl ether, dipropylene glycol-n-butyl ether and dibasic acidic ester. It is preferable to contain at least one compound.

In the composition according to the present invention, it is preferable that the a) low vapor pressure component contains dipropylene glycol-n-propyl ether.

In the composition according to the present invention, the dispersion medium preferably contains the following a), b) and c).

a) Low vapor pressure component is 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) Resistivity adjusting component is 0.5% by mass or more and 5% by mass based on the total amount of the composition. % Or less c) The surface tension adjusting component is 0.5% by mass or more and 10% by mass or less with respect to the total amount of the composition.

In the composition according to the present invention, the dispersion medium preferably contains the following a), b) and c).

a) As a low vapor pressure component, the compound of the general formula (2) is 10% by mass or more and 98.9% by mass or less based on the total amount of the composition. b) As a resistance adjusting component, a 0.4% sodium acetate aqueous solution However, 0.5% by mass or more and 5% by mass or less with respect to the total amount of the composition c) Isoparaffin as a surface tension adjusting component is 0% by mass or more and 9.99% by mass or less with respect to the total amount of the composition.

In the composition according to the present invention, the dispersion medium preferably contains the following a), b) and c).

a) As the low vapor pressure component, at least one compound selected from the group consisting of tripropylene glycol monomethyl ether, dipropylene glycol-n-propyl ether, dipropylene glycol-n-butyl ether and dibasic acidic ester is described above. 75% by mass or more and 99.4% by mass or less based on the total amount of the composition b) Sodium acetate as a resistance adjusting component is 0.0005% by mass or more and 0.1% by mass or less based on the total amount of the composition. And water is 0.49% by mass or more and 4.995% by mass or less based on the total amount of the composition c) Isoparaffin as a surface tension adjusting component is 0% by mass or more and 9.99% by mass based on the total amount of the composition. Mass% or less.

In the composition according to the present invention, the dispersion medium is a) dipropylene glycol-n-propyl ether as a low vapor pressure component, which is 10% by mass or more and 89.4% by mass or less based on the total amount of the composition. And the dibasic acidic ester is preferably contained in an amount of 10% by mass or more and 89.4% by mass or less based on the total amount of the composition.

In the composition according to the present invention, the dispersion medium preferably contains a dibasic acidic ester as the low vapor pressure component in an amount of 10% by mass or more and 45% by mass or less based on the total amount of the composition.

The electrostatic spray device of the present invention includes a liquid storage tank in which the composition of the present invention is held, a spray electrode to which the composition is supplied from the liquid storage tank, and a discharge electrode arranged in the vicinity of the spray electrode. , And by applying a voltage between the spray electrode and the discharge electrode, the composition is electrostatically sprayed from the spray electrode.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. The various shapes and combinations of the constituent members shown in the above-mentioned examples are examples, and can be variously changed based on design requirements and the like without departing from the gist of the present invention.

Hereinafter, the present invention will be described with reference to Examples, but the present invention is not limited to these Examples.

In this example, the knockdown rates of flying insects (Culex pipiens pallens) in the test chamber (0.7 m × 0.7 m × 0.7 m) were compared. In this example, 20 adult Culex pipiens females were released into a test chamber subjected to control treatment by each method, the number of insects knocked down after 10 minutes was investigated, and the knockdown rate was measured.

(Example 1)
The composition of Example 1 was prepared according to the following formulation.

In this example, as the ester compound of the formula (1), [(2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl)] methyl = (1R) -trans-2,2-dimethyl- 3-((Z) -1-propenyl) cyclopropanecarboxylate was used.

The compositions shown in Table 9 above were supplied into a liquid storage tank of an electrostatic sprayer (Cleanaer model, Atrium Innovation Ltd.) disclosed in European Patent Publication No. 1399265. The electrostatic spray device was installed in the test chamber, and the first 3 minutes immediately after the switch was turned on was continuously sprayed and then interrupted for 1 minute. Then, the inside of the test chamber was controlled by operating the device in a cycle of spraying every 2 minutes for 25 seconds to spray 25 mg of the composition into the chamber and then stopping the device.

Then, 20 adult female Culex pipiens were released into the test chamber. The number of insects knocked down 30 minutes after the release of Culex pipiens was investigated, and the knockdown rate was determined.

(Example 2)
The knockdown rate was determined in the same manner as in Example 1 except that the compositions shown in Table 10 below were used.

The results of Examples 1 and 2 are shown in Table 11.

As a result of the measurement, it was found that the compositions and methods used in Examples 1 and 2 can control harmful arthropods with high efficiency. This confirmed the usefulness of the present invention.

(Example 3)
The knockdown rate was determined in the same manner as in Example 1 except that the compositions shown in Table 12 below were used.

The results of Example 3 are shown in Table 13.

(Example 4)
In this example, the compositions shown in Table 12 were used.

In this example, the knockdown rates of flying insects (Culex pipiens pollens) in the test chamber (1.8 m × 1.8 m × 1.8 m) were compared. In this example, 50 female Culex pipiens were released into a test chamber subjected to control treatment by each method, the number of insects knocked down after 2 minutes was investigated, and the knockdown rate was measured.

The compositions shown in Table 12 were supplied into a liquid storage tank of an electrostatic spray device (Cleaner model, Trium Innovation Ltd.) disclosed in European Patent Publication No. 1399265. The electrostatic sprayer was placed in the test chamber and sprayed continuously for the first 3 minutes immediately after switching on and then interrupted for 1 minute. Then, the device was operated in a cycle of spraying every 2 minutes for 25 seconds to spray a total of 25 mg of the composition into the chamber, and then the device was stopped to control the inside of the test chamber.

Then, 50 female Culex pipiens were released into the test chamber. The number of insects knocked down 2 minutes after the release of Culex pipiens was investigated, and the knockdown rate was determined.

(Comparative Example 1)
[(2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl)] Methyl = (1R) -trans-2,2-dimethyl-3-((Z) -1-propenyl) cyclopropanecarboxy A rate of 0.333 parts and 59.677 parts of (2-methoxymethylethoxy) propanol (Dowanol DPM®) were placed in an aerosol can, a valve part was attached to the can, and a propellant (liquefied petroleum gas) was passed through the valve part. 40 parts were filled to obtain an aerosol containing 100 parts (hereinafter referred to as Comparative Example 1).

Comparative Example 1 was injected into the test chamber at 750 mg.

Then, 50 female Culex pipiens were released into the test chamber. The number of insects knocked down 2 minutes after the release of Culex pipiens was investigated, and the knockdown rate was determined.

The results of Example 4 and Comparative Example 1 are shown in Table 14.

As a result of the measurement, it was found that Example 4 showed a higher knockdown rate than Comparative Example 1 and could be controlled with high efficiency. This confirmed the usefulness of the present invention.

By using the control method, composition and electrostatic spray device of the present invention, it is possible to effectively control harmful arthropods without the need for heating or pressurization. Therefore, the present invention can be used for the control work of harmful arthropods indoors such as in homes and factories, or outdoors such as farms and parks.

1 Spray electrode 2 Spray dent 3 Discharge electrode 4 Discharge dent 5 Spray discharge surface 6 Seeds metal pipe 7 Seeds metal pipe 8 Liquid storage tank 9 Air introduction small hole 10 Drive circuit

Claims (19)

Equation (1)

A composition containing the ester compound represented by (1) and a dispersion medium for dispersing the ester compound and having a vapor pressure of less than 14 Pa at 20 ° C. is applied to a harmful arthropod or a habitat of the harmful arthropod. , An amount effective for controlling the harmful arthropods, electrostatically sprayed,
A method for controlling harmful arthropods, wherein the dispersion medium contains a low vapor pressure component containing dipropylene glycol-n-propyl ether. The electrical resistance value of the composition is 1 × 10 ³ Ωm or more and 1 × 10 ⁶ Ωm or less at 20 ° C., and the viscosity of the composition is 1 mPa · s or more and 10 mPa · s or less at 20 ° C. The method for controlling harmful arthropods according to claim 1, wherein the surface tension is 20 mN / m or more and 40 mN / m or less at 20 ° C. The method for controlling harmful arthropods according to claim 1, wherein the composition contains the following (i) and (ii).
(I) 0.1% by mass or more and 10% by mass or less of the ester compound,
(Ii) 90% by mass or more and 99.9% by mass or less of the dispersion medium containing dipropylene glycol-n-propyl ether and the physical characteristic adjusting component (however, the physical characteristic adjusting component is 0 with respect to the total amount of the composition. .5% by mass or more and 25% by mass or less, and an aqueous solution of sodium acetate which is a resistivity adjusting component and / or isoparaffin which is a surface tension adjusting component) The method for controlling harmful arthropods according to claim 1, wherein the dispersion medium contains the following a) and b):
a) Low vapor pressure component containing dipropylene glycol-n-propyl ether,
Or
Dipropylene glycol -n- propyl ether, low vapor pressure component comprising at least one compound selected from dibasic acid esters;
b) An aqueous solution of sodium acetate, which is a resistivity adjusting component. The method for controlling harmful arthropods according to claim 4, wherein the low vapor pressure component further contains dipropylene glycol. The method for controlling harmful arthropods according to claim 4, wherein the dispersion medium further contains c) isoparaffin as a surface tension adjusting component. The method for controlling harmful arthropods according to claim 6, wherein the dispersion medium contains the following a), b) and c).
a) Low vapor pressure component is 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) Sodium acetate aqueous solution is 0.5% by mass based on the total amount of the composition as a resistivity adjusting component. Mass% or more and 5% by mass or less c) Isoparaffin as a surface tension adjusting component is 0.5% by mass or more and 10% by mass or less based on the total amount of the composition. The method for controlling harmful arthropods according to claim 7 , wherein the dispersion medium contains the following a), b) and c).
a) Dipropylene glycol-n-propyl ether as a low vapor pressure component is 10% by mass or more and 98.9% by mass or less based on the total amount of the composition b) 0.4% sodium acetate as a resistance adjusting component The aqueous solution is 0.5% by mass or more and 5% by mass or less based on the total amount of the composition. The method for controlling harmful arthropods according to claim 7 , wherein the dispersion medium contains the following a), b) and c).
a) Dipropylene glycol-n-propyl ether as a low vapor pressure component;
Or
Dipropylene glycol -n- propyl ether, and at least one compound selected from dibasic acid esters;
However, 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) As the resistivity adjusting component, the aqueous sodium acetate solution is 0.5% by mass or more and 5% by mass based on the total amount of the composition. Below c) Isoparaffin as a surface tension adjusting component is 0.5% by mass or more and 10% by mass or less with respect to the total amount of the composition. The electrostatic spraying is performed by supplying the composition to the inside of a tubular spray electrode.
Applying a voltage between the spray electrode and the discharge electrode paired with the spray electrode so that the composition becomes liquid particles.
The method for controlling harmful arthropods according to claim 1, wherein the composition is sprayed from the spray electrode. Equation (1)

Contains the ester compound represented by (1) and a dispersion medium for dispersing the ester compound, the electric resistance value is 1 × 10 ³ Ωm or more and 1 × 10 ⁶ Ωm or less at 20 ° C., and the viscosity is 1 mPa at 20 ° C. The vapor pressure is s or more and 10 mPa · s or less, the surface tension is 20 mN / m or more and 40 mN / m or less at 20 ° C., and the vapor pressure is less than 14 Pa at 20 ° C.
The dispersion medium is a composition comprising a low vapor pressure component containing dipropylene glycol-n-propyl ether. The composition according to claim 11 , which comprises the following (i) and (ii).
(I) 0.1% by mass or more and 10% by mass or less of the ester compound,
(Ii) 90% by mass or more and 99.9% by mass or less of the dispersion medium containing dipropylene glycol-n-propyl ether and the physical characteristic adjusting component (however, the physical characteristic adjusting component is 0 with respect to the total amount of the composition. .5% by mass or more and 25% by mass or less, and an aqueous solution of sodium acetate which is a resistivity adjusting component and / or isoparaffin which is a surface tension adjusting component) The composition according to claim 11 , wherein the dispersion medium contains the following a) and b):
a) Low vapor pressure component containing dipropylene glycol-n-propyl ether,
Or
Dipropylene glycol -n- propyl ether, low vapor pressure component comprising at least one compound selected from dibasic acid esters;
b) An aqueous solution of sodium acetate, which is a resistivity adjusting component. The composition according to claim 13 , wherein the low vapor pressure component further contains dipropylene glycol. The composition according to claim 13 , wherein the dispersion medium further contains c) isoparaffin as a surface tension adjusting component. The composition according to claim 15 , wherein the dispersion medium contains the following a), b) and c).
a) Low vapor pressure component is 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) Sodium acetate aqueous solution is 0.5% by mass based on the total amount of the composition as a resistivity adjusting component. Mass% or more and 5% by mass or less c) Isoparaffin as a surface tension adjusting component is 0.5% by mass or more and 10% by mass or less based on the total amount of the composition. The composition according to claim 16 , wherein the dispersion medium contains the following a), b) and c).
a) Dipropylene glycol-n-propyl ether as a low vapor pressure component is 10% by mass or more and 98.9% by mass or less based on the total amount of the composition b) 0.4% sodium acetate as a resistance adjusting component The aqueous solution is 0.5% by mass or more and 5% by mass or less based on the total amount of the composition. The composition according to claim 16 , wherein the dispersion medium contains the following a), b) and c).
a) Dipropylene glycol-n-propyl ether as a low vapor pressure component;
Or
Dipropylene glycol -n- propyl ether, and at least one compound selected from dibasic acid esters;
However, 75% by mass or more and 98.9% by mass or less based on the total amount of the composition b) As the resistivity adjusting component, the aqueous sodium acetate solution is 0.5% by mass or more and 5% by mass based on the total amount of the composition. Below c) Isoparaffin as a surface tension adjusting component is 0.5% by mass or more and 10% by mass or less with respect to the total amount of the composition. A liquid storage tank holding the composition according to claim 11 and
With the spray electrode to which the composition is supplied from the liquid storage tank,
A discharge electrode arranged in the vicinity of the spray electrode is provided.
An electrostatic spray device for electrostatically spraying the composition from the spray electrode by applying a voltage between the spray electrode and the discharge electrode.

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