JPH06256109A - Mite-attracting composition, miticidal composition, mite-capturing material and attracting and killing method for mite - Google Patents

Abstract

(57) [Summary] [Objective] A tick attracting composition and acaricidal composition having no species-specificity and having a sufficient attracting effect and / or acaricidal effect on indoor dust mites living in a house. In addition, a mite trapping material or a mite attracting method using the mite attracting composition and / or mite-killing composition is provided. [Structure] A mite attracting composition or an acaricidal composition containing, as an active ingredient, one or more compounds selected from linear fatty acids having 4 to 18 carbon atoms. Or a material for capturing mites using the tick attracting composition and the sticky trap, or a method for attracting mites using the tick attracting composition or the acaricidal composition

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a mite attracting composition suitable for attracting and capturing sanitary pests such as mites, acaricide composition and a method for attracting mites.

[0002]

2. Description of the Related Art In recent years, due to the high airtightness of dwellings, the spread of air conditioners and the laying of carpets, etc. accompanying the progress of construction technology, an environment favorable for the inhabitation of mites has been prepared to promote the reproduction of mites. It is the actual situation. However, small animals called sanitary pests such as mites and lice cause physical or mental distress to the human body such as blood sucking, biting and parasitism in addition to the transmission of infectious diseases. Childhood asthma,
Since it is a source of allergies such as atopic dermatitis and allergic rhinitis, effective control of these mites is demanded.

To meet this demand, the acaricidal activity of various compounds has been investigated. For example, Noda and Heisha compare the efficacy of various agents against the phytoseiid mites, Dermatophagoides farinae, by the medium mixing method and the square filter paper method (Journal of Pestology 6 (1): 50 (1991)). In addition, it has been widely studied as an attractant for attracting traps. For example, JP-A-63-230605 has 14 carbon atoms.
It has been shown that the methyl and ethyl esters of linear fatty acids from 18 to 18 attract mites. JP-A-63-255207 discloses that food flavors such as chocolate flavor, almond flavor, cheese flavor, bonito flavor, butter flavor and sesame flavor attract mites.
JP-A-2-215705 discloses a mite attractant in which triglyceride is added to the above-mentioned food flavor, but does not disclose the linear saturated fatty acid having 4 to 13 carbon atoms of the present invention.

[0004]

[Problems to be Solved by the Invention] As described above, mites that are generated and inhabited indoors of ordinary households are not only small in size, but generally exist in small gaps, etc. Is very difficult to confirm and is difficult to remove. Therefore, attempts have been made to capture them using various attractants (including pheromones). However, there is no compound that exhibits a sufficient attracting effect, and it has been desired to find an attractant that is broadly effective against mites and has no species specificity.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a mite attracting composition having no species specificity and exhibiting an excellent attracting effect to all mites. It was done for the purpose of provision. As a result, carbon number is 4 to 1
It was discovered that the straight chain saturated fatty acid of 3 has not only an attractant for mites but also an acaricidal activity, and the present invention was completed by utilizing it. That is, the present invention is the following (a), (b), (c). )
And (d). (A) 1 selected from straight chain fatty acids having 4 to 18 carbon atoms
A mite attracting composition comprising one or more compounds as active ingredients. (B) A material for trapping mites using the tick attracting composition according to claim 1 and an adhesive trap. (C) 1 selected from straight chain fatty acids having 4 to 18 carbon atoms
An acaricidal composition comprising at least one compound as an active ingredient. (D) A method for attracting mites, which comprises using the acaricidal composition according to claim 1 or 3.

Examples of the linear fatty acid having 4 to 18 carbon atoms in the present invention include saturated or unsaturated linear fatty acids having 4 to 18 carbon atoms, preferably 4 to 12 carbon atoms, and more preferably 5 to 10 carbon atoms. . Further, the number of carboxyl groups imparted to the linear fatty acid may be one or more, but preferably one. Examples of the straight-chain fatty acid having 13 to 18 carbon atoms include stearic acid, palmitic acid, myristic acid, palmitooleic acid, oleic acid, elaidic acid, vaccenic acid, linoleic acid and γ.
-, Α-linolenic acid is indicated. And carbon number 4 to 1
2 straight-chain fatty acids include valeric acid, caproic acid, octanoic acid,
Examples include pelargonic acid and n-capric acid.

Further, these linear fatty acids having 4 to 18 carbon atoms are methyl esters and ethyl esters of linear fatty acids having 14 to 18 carbon atoms described in the conventional examples, or chocolate flavors and almonds which are food flavors. It can be used as a mixture with one or more tree species selected from flavors, cheese flavors, bonito flavors, butter flavors, sesame flavors, triglycerides and the like.

As mites of the present invention, there are ticks of the subgenus Prestigmata, subgenus Astigmatids, and subgenus Astigmatism, and the subgenus Astigmatids are phylum mites such as Piscus cerevisiae or Minamis ticks, Dust mites, mistletoe mites as a subfamily of the Chimikado,
Examples of Triticum mites and ascidian suborders include Dermatophagoides farinae such as Dermatophagoides farinae and Dermatophagoides farinae, Mite mites such as Physcomitrella patens and Plutella xylostella and Saladani. In particular, the ascidian subfamily occupies the majority of mites in bedding, and this can be exemplified by Dermatophagoides farinae, which is a Dermatophagoides farinae, Dermatophagoides farinae, or Plutella xylostella which is a mites. Further, Umi mites, which have been found to be attached to feather futons, which have become widespread in recent years, are also important target mites. The mites that enter the house include house dust mites, triticum mites, spider mites, and saladanis.

When a straight chain fatty acid having 4 to 18 carbon atoms (hereinafter referred to as "the fatty acid") is used as one mite attracting composition of the present invention, the fatty acid is simply adsorbed directly on a filter paper or other porous substrate. Although it may be used, it is preferable to use it as a formulation. The form of the preparation is that the fatty acid is impregnated in a rubber septum or a polyethylene cap. Encapsulated with a film that can control the evaporation rate of the fatty acid into the air. A product in which the fatty acid is enclosed in a hollow can made of a substance that is impermeable, and one end of the hollow can is opened. Encapsulated in a sheet having a multilayer structure in which both outer side layers are films that control the release of the fatty acid.
Examples include those encapsulated in a membrane structure that controls the release rate of the fatty acid, such as inclusion with microcapsules or cyclodextrin.

As a method for trapping mites of the present invention, the mite attracting composition is used by setting it in a trap having an appropriate shape, or by forming a sticky substance layer on the surface of a substrate, It is effective to install and use a mite attracting composition on this surface layer. It is also effective to mix the fatty acid in the adhesive composition to form a substance layer having adhesiveness on the surface of the base material, that is, a mite attracting composition for use.

The sticky substance may be liquid or semi-solid at room temperature. For example,
Examples thereof include oils and fats, softeners, liquid rubbers, liquid resins, natural proteins, polysaccharides, polymeric substances, pressure-sensitive adhesive substances containing synthetic resins as main components, and adhesive hydrogels. As a capturing method, the above-mentioned adhesive substance is formed on the surface of a substrate such as a film, a sheet and a molded article by laminating, coating, spraying or the like by a means such as extrusion, a roll, a brush, a spray, etc. After the attractant is placed on the surface of the adhesive sheet, etc., it is placed in a place where mites may live, with the adhesive layer facing upward, or with the adhesive layer facing downward. In the latter case, it is preferable to interpose a spacer so that the adhesive surface does not directly contact the carpet or the like. More specifically, as shown in FIG. 1, an adhesive layer (2) is provided on the surface of a rectangular mite trapping sheet (1), and a mite attracting composition (3) is placed in the center of the adhesive layer (2). . Then, these are covered with a spacer (4). Next, the surface of the adhesive layer (2) is faced down and applied on a carpet and a tatami mat. In this case, since the surface of the adhesive layer (2) directly contacts the surfaces of the carpet and tatami mat, dusts and the like are also captured together with the mites, and further, when the mite capturing sheet 1 is collected, peeling from the carpet and tatami becomes difficult. May be. Therefore, the spacer (4) is provided as described above. In this method of use, the trapping efficiency is improved by applying a weight of about 50 g per cm ² so that the surface of the adhesive layer 2 is embedded in the carpet.

Generally, the size of the mite capturing sheet required for capturing mites has an adhesive area of 36 cm ² (6 cm × 6 c
m) is sufficient, and the mite attracting composition may be placed in the center of the adhesive surface. A suitable amount of the active ingredient contained in the mite attracting composition is 0.1 to 10 g / m ² , and a sufficient attracting effect can be expected. Then, as a method for detecting mites captured on the surface of the adhesive layer (2), a method of directly counting with a microscope and a magnifying glass or a method of using ninhydrin or the like as a detection reagent and reacting with a mite body fluid with the naked eye is used. There is an easy way to detect.

In the acaricidal composition of the present invention, at least one fatty acid selected from the above fatty acids can be used as it is, but usually, it is held in a solid carrier or a liquid carrier, and then, if necessary, a coating film. Forming agent, emulsifier, sticking agent,
By appropriately adding dispersants, wetting agents, stabilizers, propellants, volatilization regulators, etc., oils, emulsions, wettable powders, sprays, aerosols, smoke agents, coating agents, cleaning agents, shampoos, powders It is used as a preparation such as granules and capsules.

The solid carrier used in the preparation herein includes, for example, silicic acid, kaolin, activated carbon, bentonite,
Mineral powders such as diatomaceous earth, talc, calcium carbonate;
Examples thereof include plant powders such as wheat flour and starch; powders of synthetic polymers such as polyvinyl chloride powder; and examples of liquid carriers include water; aliphatic hydrocarbons such as hexane, kerosene, and kerosene; benzene, toluene. , Aromatic hydrocarbons such as xylene, halogenated hydrocarbons such as dichloroethane and carbon tetrachloride; alcohols such as ethanol, isopropyl alcohol and ethylene glycol; acetone,
Ketones such as methyl ethyl ketone and cyclohexanone;
Ethers such as tetrahydrofuran, dimethoxyethane, diethyl ether; esters such as ethyl acetate; nitriles such as acetonitrile; acid amides such as dimethylformamide; vegetable oils such as soybean oil and cottonseed oil.

Examples of the coating film forming agent include cellulose derivatives, vinyl resins, alkyd resins, urea resins, epoxy resins, polyester resins, urethane resins, silicone resins, acrylic resins, and chlorides. Examples include rubber and polyvinyl alcohol, emulsifiers,
Examples of the fixing agent and the dispersant include soaps, polyoxyethylene alkylallyl ethers, polyoxyethylene fatty acid esters, fatty acid glycerides, sorbitan fatty acid esters, sulfuric acid esters of higher alcohols, and alkylallyl sulfonates. Examples of the propellant include liquefied petroleum gas, dimethyl ether, nitrogen gas, liquefied carbon dioxide gas and pentane.
(Including isomers such as-, n-) and the like, and examples of the volatilization regulator include tricyclodecane, cyclododecane, 2,4,6-triisopropyl-1,3,5-trioxane and trimethylene. Examples include non-bornene.

A sublimable solid agent can also be obtained by using the above-mentioned active ingredient in combination with a sublimable insect repellent such as paradichlorobenzene, naphthalene, trioxane or camphor.

Further, the acaricidal composition of the present invention includes various conventionally used insecticides, acaricides, synergists, pests and rodent repellents, bactericides, fungicides, and deodorants. , Fragrances and colorants may also be included. For example, as a synergist or acaricide, piperonyl butoxide, octachlorodipropyl ether, N- (2-ethylhexyl) -1-isopropyl-4-methylbicyclo [2,2]
2,2] oct-5-ene-2,3-dicarboximide, N- (2-ethynyl) -bicyclo [2,2,1]-
Hepta-5-ene-2,3-dicarboximide and the like can be used, and as a pest and rodent repellent, 2,3,4,5-bis (Δ-butylene) -tetrahydrofurfural, N, N- Diethyl-m-toluamide, di-n-propylisocincolmate, di-n-butylacetic acid, 2-hydroxyethyloctylsulfate, 2-t-butyl-4-hydroxyanisole, 3-t-butyl-4.
-Hydroxyanisole, cycloheximide, β-nitrostyrene cyanoacrylonitrile, tributyltin hydrochloride, trinitrobenzene-aniline complex, naphthalene and the like can be used. And various insecticides or acaricides include d-phenothrin (3-phenoxybenzyl d-cis / trans-chrysanthate), permethrin (3-phenoxybenzyl dl-cis / trans-2,2-dimethyl-3). -(2 ', 2'-dichlorovinyl) -cyclopropanecarboxylate), resmethrin ((5-benzyl-3-furyl) methyl dl
-Cis / trans-chrysanthemate), allethrin (dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl dl-cis / trans-chrysanthate), phthalthrin ((N-3,4, 5,6,7-Tetrahydro-phthalimido) methyl dl-cis / trans-chrysanthemate), Empentrin (1-ethynyl-2-methyl-2-pentenyl dl-cis / trans-chrysanthemate), 1-ethynyl- 2-methyl-2-pentenyl-2,2,3,3, -tetramethyl-
Cyclopropanecarboxylate, 1-ethynyl-2-
Methyl-2-pentenyl-2,2-dimethyl-3-
(2 ′, 2′-dichlorovinyl) -cyclopropanecarboxylate, d, dT80-praletrin (d-2
-Methyl-4-oxo-3-propargylcyclopent-2-enyl d-cis / trans-chrysanthemate) and tefluthrin (2,3,5,6-tetrafluoro-4-methylbenzyl-3- (2 ' -Chloro-
3 ', 3', 3'-trifluoro-1-propenyl)-
2,2-dimethylcyclopropanecarboxylate),
Benfluthrin (2,3,5,6-tetrafluorobenzyl d-trans-chrysanthemate) and the like, and geometric isomers and optical isomers and derivatives thereof, and analogs thereof are used. Furthermore, conventionally used acaricides, for example, paraoxybenzoic acid ester, iodinated formal, phenols, phthalic acid ester, 3-bromo-2,3-described in Japanese Patent Application No. 4-300636.
Iodo-2-propenyl-ethyl carbonate, monoterpene type ketones, monoterpene type aldehydes, monoterpene type epoxides, phenyl salicylate and the like are used.

As the bactericidal agent and antifungal agent, 2,
4,4'-trichloro-2'-hydroxydiphenyl ether, 2,3,5,6-tetrachloro-4- (methylsulfonyl) pyridine, alkylbenzylmethylammonium chloride, benzylmethyl- {2- [2-
(P-1,1,3,3-tetramethylbutylphenoxy) ethoxy] ethyl} ammonium chloride, 4-
Isopropyltropolone, N, N-dimethyl-N'-phenyl-N '-(fluorodichloromethylthio) sulfonamide, 2- (4'-thiazolyl) benzimidazole, N- (fluorodichloromethylthio) -phthalimide, 6-acetoxy- 2,4-dimethyl-m-dioxin, isopropylmethylphenol, 0-phenylphenol, p-chloro-m-xylenol and the like are used, deodorant lauryl methacrylate and the like, and aromatic as igusa. The essential oil ingredients of Citronella, lemon, lemongrass, orange, eucalyptus, lavender, etc. are used.

The compounding amount of the above-mentioned active ingredient in the acaricidal composition of the present invention can be appropriately determined according to its dosage form, application method and place of application, etc. It is preferable to add 0.01 to 50% by weight in the case of a wettable powder or an emulsion and 0.01 to 40% by weight in the case of an oil agent or an aerosol agent, and it is preferable that this container also has a suitable format. For example, in the case of an aerosol agent, a needle-shaped or small-diameter tube-shaped nozzle is adopted so that it can be easily sprayed / applied to the application site, and in the case of a fine powder agent, a shape capable of suppressing the scattering is preferable.

Thus, the acaricidal composition of the present invention prepared as described above may be sprayed, sprayed, applied, vaporized or set on the floor surface, tatami mat, carpet, duvet, sofa, pillow, closet or the like, or Acaricide can be treated by using it as a cleaning agent for people and pets.

Further, the acaricidal composition of the present invention, in addition to the above-mentioned dosage form, holds the fatty acid on an appropriate base material to give a film, a sheet, a construction, or a composition having acaricidal component.
It can also be used as acaricide for building materials. Examples of the base material used here include synthetic resin sheets such as polyethylene, polypropylene, polyamide, polyvinyl chloride, and polyester: animal and vegetable fibers or inorganic fiber bodies (paper, cloth, non-woven fabric, leather, etc.): the above synthetic resins and animal and plant fiber bodies Or a mixed sheet with an inorganic fiber, a blended cloth, or a non-woven fabric: a foil or film of a metal such as aluminum, stainless copper, zinc: a laminate of the above various sheets: and construction /
Examples include various natural woods and plastic moldings used as building materials. An acaricidal material can be obtained by holding the acaricidal composition of the present invention or the acarid attracting composition of the present invention on these substrates by coating, impregnation, dropping, kneading, or the like. The amount retained in the substrate is not particularly limited and can be appropriately determined, and when impregnating the substrate, it can be usually used in an amount that provides a saturated impregnation amount. Further, as the acaricidal material, the fiber or urethane treated with the acaricidal composition of the present invention or the acaricidal composition of the present invention can be used as a filling material for bedding, sofas or stuffed animals.

A preferred embodiment of the acaricidal material thus obtained is, for example, a method of setting it under a tatami mat, a carpet, a fur, bedding, a stuffed animal or the like. In this case, about 0.3 to 20 active ingredients per 1 m ^{2 of} installation area
By holding g, preferably 0.5 to 5 g, the active ingredient can be sustainedly released and the acaricidal effect can be prolonged.

[0023]

In the case of using the mite attracting composition of the present invention, from the standpoint of merely attracting the mites, the higher the active ingredient concentration is, the more mites can be attracted in a large area. However, when the trapping or acaricidal treatment is not performed after the mites are attracted by the fatty acid, the straight-chain fatty acid having 4 to 13 carbon atoms has a small effect of fixing the mites, and is dispersed again after a while after assembling. Therefore, by using a fixing agent such as a linear fatty acid having 16 to 18 carbon atoms or triglyceride, it can be more significantly aggregated.

Furthermore, when the acaricidal composition of the present invention is used, it attracts mites around the treated acaricidal composition to the treated location due to the attractive effect of the linear fatty acid having 4 to 18 carbon atoms. Thus, the acaricidal component can be easily contacted.

[0025]

EXAMPLES Next, the present invention will be described in detail with reference to test examples and examples. However, the present invention is not limited to the examples. The mites used in this example were Dermatophagoides farinae (hereinafter referred to as “D.f.”), Plutella xylostella mites (hereinafter referred to as “Tp”), and Scutellaria baicalensis (hereinafter referred to as “Lk”).

Test Example 1 As shown in FIG. 2, about 5 g of a mite saturated medium (6) was placed in a petri dish (5) having a diameter of 9 cm, and 6 × 6 cm cardboard paper (7) was raised on this medium to sufficiently remove mites. Let's crawl up. A disk (9) with a diameter of 4 mm was fixed with double-sided tape at the four corners of a black paper (8) of 6 × 6 cm, and the test fatty acids of the disks (9a, 9b) on one diagonal line were replaced with acetone as shown in FIG. And the mixture was uniformly added dropwise so that the fatty acid concentration was 1 mg / disk. The other diagonal disk (9c, 9d) was treated with acetone as a control. Then, it was air-dried to remove acetone and then laminated on a cardboard paper. After 2 and 24 hours, the disc and its periphery (inside the squares) were observed, and the results are shown in Table 1. The symbols in the table indicate that the more plus signs there are, the more they gather.

[0027]

[Table 1]

Test Example 2 Acetone solution of fatty acid was added to a black paper (10 × 5 cm) in an amount of 0.5.
The solution was uniformly dropped so that the amount became / m ² and left in the room for several hours. Then, fold the black paper in two and clip on two sides except the folds, and put about 50 mites in the folded black paper.
The head was put in, and the rest was clipped at the sides and completely sealed. Two
After 4 hours, the clip was removed and the life and death of ticks was determined under a stereoscopic microscope. Then, lethal rate and knockdown rate are calculated by the following formulas (when the knockdown rate is calculated, "lethal" in the formula is read as "knockdown"), and the results are shown in Table 2 as an average of two tests. Show.

[0029]

[Table 2]

Test Example 3 As shown in FIGS. 4 and 5, the outer diameter was 110 mm and the height was 6 mm.
A filter paper (12; No. 2 manufactured by Toyo Roshi Kaisha, Ltd.) was pasted on the back side of a 5 mm cylindrical glass container (11; hereinafter referred to as a “lid”) with a paste, and a circle with a diameter of 5 mm was placed on the filter paper with a pencil of about 20 mm vertically and horizontally. Written at intervals. Then, a hexane solution of the linear fatty acid was dropped so that 100 or 10 μg of the linear fatty acid was present in the circle. Then, about 5 g of the mite saturated medium (6) was placed in a cylindrical glass container (10; hereinafter referred to as "breeding container") having an inner diameter of 95 mm and a height of 65 mm, and the lid (11) was placed on the rearing container (10). After 3 hours, the attraction effect was observed, and the results are shown in Table 3. The attracting effect is that the mites crawling up on the lid (11) have the above-mentioned filter paper (1
If it is collected in the circle (13) written in 2), the linear fatty acid in the circle is active, and the linear fatty acid that was effective at 100 μg was effective at “+” or 10 μg. The straight-chain fatty acid was indicated by "++", and the straight-chain fatty acid having no effect was indicated by "-".

[0031]

[Table 3]

Example 1 An oil agent 2% by weight of caproic acid was mixed with 98% by weight of isopropyl alcohol as a solvent to prepare a uniform mite composition.

Example 2 Emulsion 10% by weight of pelargonic acid was mixed with 10% by weight of sorbitan monostearate as an emulsifier and 70% by weight of kerosene as a solvent to prepare a uniform acaricidal composition.

Example 3 Powder 1% by weight of pelargonic acid and 1% by weight of d-phenothrin
1% by weight of silicic acid as a base material and 97% by weight of talc
Was mixed into the mixture to prepare a uniform acaricidal composition.

Example 4 Dust agent 2% by weight of octanoic acid was used as a base material of soft polyvinyl chloride powder 9
8% by weight was stirred overnight at room temperature, and the above compound was adsorbed on polyvinyl chloride powder to prepare a mite attracting composition.

Example 5 Aerosol agent 1 g of n-capric acid, 10 g of phenyl salicylate and 4 g of diethyl phthalate were mixed and stirred in 200 ml of No. 1 kerosene to prepare a stock solution, which was filled in an aerosol container and after the valve portion was attached. Then, 100 ml of liquefied petroleum gas and 5 ml of liquefied carbon dioxide gas were charged under pressure through the valve portion to prepare an acaricidal composition.

Example 6 Aerosol Agent 1 g of pelargonic acid, 15 g of phenyl salicylate, 8 g of diethyl phthalate and 0.9 g of d-phenothrin were further dissolved in 200 ml of kerosene to prepare a stock solution, which was filled in an aerosol container to fill the valve portion. After mounting, 100 ml of dimethyl ether was pressure-filled through the valve portion to prepare an acaricidal composition.

Example 7 Sheet material 10% by weight of octanoic acid and 50% by weight of kerosene were mixed and stirred, and uniformly applied to a polyethylene-pulp non-woven fabric so that the octanoic acid concentration was 0.2 g / m ^2. To prepare a mite attractant.

[0039]

INDUSTRIAL APPLICABILITY As described above, the mite attracting composition of the present invention contains a specific fatty acid as an active ingredient, and due to its attracting action, most types of mites that live in ordinary households live in habitat. It will be possible to catch more out of it. That is, the pheromone, which was a conventional attractant,
While the types of mites to be attracted may be limited, the mite attracting composition of the present invention attracts most types of mites because the active ingredient, fatty acid, has no species specificity. Therefore, by capturing mites using this, it becomes possible to eliminate vectors of infectious diseases caused by mites, mental and physical distress such as blood feeding, and allergies such as childhood asthma. Furthermore, by using the acaricidal composition of the present invention, it is possible to reduce the treatment range to be treated with acaricide, and when the treatment is performed indoors, it is possible to reduce the number of machines where humans and acaricidal components come into contact with each other.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view illustrating an example of a mite capturing sheet of the present invention.

FIG. 2 is a vertical sectional view for explaining the test method of Test Example 1 for explaining the present invention in detail.

FIG. 3 is a plan view for explaining the test method of Test Example 1 for explaining the present invention in detail.

FIG. 4 is a plan view of a lid for explaining a test method of Test Example 2 for explaining the present invention in detail.

FIG. 5 is a vertical sectional view for explaining a test method of Test Example 2 for explaining the present invention in detail.

[Explanation of symbols]

 1 Mite capturing sheet Main body 2 Adhesive layer 3 Mite attracting composition 4 Spacer 5 Petri dish 6 Mite saturated medium 7 Cardboard paper 8 Black paper 9 Disc 10 Breeding container 11 Lid 12 Filter paper 13 Listed circles

Claims (4)

[Claims] 1. A mite attracting composition containing, as an active ingredient, one or more compounds selected from linear fatty acids having 4 to 18 carbon atoms. 2. A material for trapping mites using the tick attracting composition according to claim 1 and an adhesive trap. 3. An acaricidal composition containing, as an active ingredient, one or more compounds selected from linear fatty acids having 4 to 18 carbon atoms. 4. A method for attracting mites, which comprises using the acaricidal composition according to claim 1 or 3.