JPWO2017018423A1 - Pest control aerosol composition, pest control aerosol product and method for enhancing efficacy of insecticidal ingredients - Google Patents

Abstract

An aerosol composition for controlling pests containing an essential oil component that is an insecticidal component and a propellant, and the essential oil component is contained in the aerosol composition for controlling pests in an amount of 0.05 mass / volume% or less. Includes a hydrofluoroolefin and a low-density propellant having a liquid density of less than 1 (g / mL), and the aerosol composition density at 20 ° C. is 1 (g / mL) or less. .

Description

  The present invention relates to a pest control aerosol composition, a pest control aerosol product, and a method for enhancing the efficacy of an insecticidal component. More specifically, the present invention relates to a pest control aerosol composition and a pest control aerosol product which can increase the efficacy of the insecticidal component and sufficiently control the pest even with a small amount of the insecticidal component, and a method for enhancing the efficacy of the insecticidal component.

  Conventionally, pest control aerosol products for controlling pests are known. In such aerosol products, in order to obtain a sufficient insecticidal effect even with a small amount of an insecticidal component, means for enhancing the efficacy of the insecticidal component has been studied. Specifically, it enhances the efficacy of specific insecticidal components such as pyrethroid compounds by blending piperonyl butoxide, safroxan, specific surfactants, amino acids, etc., and skin of insecticidal components against pests One that enhances permeability is known (see Patent Documents 1 and 2).

JP 2001-199808 A JP 2002-167304 A

  However, the efficacy enhancers described in Patent Documents 1 and 2 cannot sufficiently enhance the efficacy of the insecticidal component.

  The present invention has been made in view of such a conventional problem, and an insecticide-controlling aerosol composition and an insecticidal-controlling aerosol capable of sufficiently controlling insect pests even with a small amount of insecticide ingredient, with increased efficacy of insecticide ingredients. The object is to provide a method for enhancing the efficacy of products and insecticidal ingredients.

  The aerosol composition for controlling insect pests of the present invention that solves the above problems is an aerosol composition for controlling insect pests containing an essential oil component that is an insecticidal component and a propellant, and the essential oil component is an aerosol composition for controlling insect pests. The propellant contains hydrofluoroolefin and a low density propellant having a liquid density of less than 1 (g / mL), and an aerosol composition at 20 ° C. It is an aerosol composition for controlling pests having a physical density of 1 (g / mL) or less.

  In addition, the pest control aerosol product of the present invention that solves the above problems is a pest control aerosol product that is pressure-filled with the pest control aerosol composition, and the discharge amount of the essential oil component is 0.003 per 3 seconds. It is an aerosol product for controlling pests of 1 to 5 mg.

  Furthermore, the method for enhancing the efficacy of the insecticidal component of the present invention that solves the above-mentioned problems is a method for enhancing the efficacy of the insecticidal component in an aerosol composition for controlling pests containing an insecticidal component and a propellant, An essential oil component is selected as the component, and the essential oil component is contained in the pest control aerosol composition so as to be 0.05 mass / volume% or less, and as the propellant, a hydrofluoroolefin and a liquid density of 1 ( It is a method for enhancing the efficacy of an insecticidal component by selecting a propellant containing a low density propellant of less than (g / mL) and adjusting the density of the aerosol composition to be 1 (g / mL) or less.

  ADVANTAGE OF THE INVENTION According to this invention, the efficacy of an insecticidal component is increased, and the insect-controlling aerosol composition which can fully control a pest with a small amount of insecticidal components, an insect-controlling aerosol product, and a method for enhancing the efficacy of the insecticidal component are provided. it can.

It is a schematic diagram for demonstrating the evaluation method of a knockdown effect.

[Aerosol composition for pest control]
An aerosol composition for pest control according to an embodiment of the present invention (hereinafter also referred to as an aerosol composition) contains a stock solution containing an essential oil component that is an insecticidal component, and a propellant. The aerosol composition is an insecticidal component while freezing (stopping the action of) the target pest by using the heat of vaporization when the propellant evaporates by being pressurized and filled in an aerosol container, for example. Insect pests (target pests) with essential oil components.

  The type of target pest is not particularly limited. Target pests include, for example, cockroaches such as black cockroaches, German cockroaches, cockroaches, American cockroaches, giant cockroaches, spiders, centipedes, ants, geese, stag beetles, common bugs, termites, bugs, mites, lices, moths, bees, etc. These are flying insects such as stink bugs, cutworms, scabies, mosquitoes and flies.

<Undiluted solution>
The stock solution is a component that constitutes the aerosol composition together with the propellant. The stock solution is filled into an aerosol container when an aerosol product to be described later is prepared. The stock solution can contain an essential oil component that is an insecticidal component and an optional component.

(Essential oil component that is an insecticide component)
The essential oil component, which is an insecticidal component, is a component that exhibits insecticidal efficacy (knockdown effect, lethal effect, etc.) against the target pest. The kind of essential oil component which is an insecticidal component is not specifically limited, A well-known essential oil component can be used. The essential oil component that is an insecticidal component can be appropriately selected according to the type of target pest to be controlled. Essential oil components that are insecticidal components include mint oil, orange oil, fennel oil, cinnamon oil, clove oil, turpentine oil, eucalyptus oil, hiba oil, jasmine oil, neroli oil, peppermint oil, bergamot oil, butygrain oil, lemon Oil, lemongrass oil, cinnamon oil, citronella oil, geranium oil, citral, l-menthol, citronellyl acetate, cinnamic aldehyde, terpineol, nonyl alcohol, cis-jasmon, limonene, linalool, 1,8-cineole, geraniol, α Various insecticidal essential oil components such as -pinene, p-menthane-3,8-diol, eugenol, menthyl acetate, thymol, benzyl benzoate and benzyl salicylate can be selected. The aerosol composition containing the essential oil component, which is an insecticidal component, easily enhances the insecticidal efficacy despite the small amount of the essential oil component, which is an insecticidal component. The essential oil component that is an insecticidal component preferably includes a terpene-based essential oil component, and more preferably includes mint oil or orange oil, p-menthane-3,8-diol, l-menthol, and limonene. When the essential oil component that is an insecticidal component contains mint oil or orange oil, p-menthane-3,8-diol, l-menthol, limonene, the resulting aerosol composition contains a small amount of the essential oil component that is the insecticidal component. Nevertheless, insecticidal efficacy is particularly likely to be enhanced.

  The stock solution of the present embodiment may contain various insecticidal components in addition to the essential oil component that is an insecticidal component. Such insecticidal components include propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether, ethylene glycol monoisobutyl ether, diethylene glycol monoisobutyl ether, diethylene glycol diethylene glycol. Glycol ethers such as butyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, dibasic acid esters such as dibutyl adipate, pyrethrin, allethrin, phthalthrin, resmethrin, framethrin, phenothrin, permethrin, empentrin, praretrin, ciphenothrin, imiprotorin, tolan Insecticidal properties such as pyrethroids such as furthrin and methofluthrin, organophosphorus compounds such as fenitrothion, dichlorvos, chlorpyrifosmethyl, diazinon and phenthion, carbamates such as carbaryl and propoxur, metoprene, pyriproxyfen, methoxadiazone, fipronil and amidoflumet A compound.

  The content of the essential oil component that is an insecticidal component may be a content that exhibits sufficient insecticidal efficacy (knockdown effect, lethal effect, etc.). Among them, the content of the essential oil component that is an insecticidal component is preferably 0.0025 mass / volume% or more, and more preferably 0.005 mass / volume% or more. The upper limit of content of the essential oil component which is an insecticidal component is not specifically limited. From the viewpoint of obtaining a sufficient effect of enhancing the insecticidal efficacy, the content of the essential oil component that is an insecticidal component may be 0.05 mass / volume% or less in the aerosol composition. With such a content, the aerosol composition can sufficiently obtain the effect of enhancing the efficacy of the essential oil component that is an insecticidal component, and the essential oil component that is an insecticidal component is a small amount such as 0.05% by mass or less. Even if it exists, it can show sufficient insecticidal efficacy.

  The stock solution can contain a solvent to such an extent that the effect of the aerosol composition of the present embodiment is not impaired. The solvent is preferably contained in order to uniformly blend the essential oil component that is an insecticidal component. For example, the solvents are lower alcohols such as ethanol and propanol, polyhydric alcohols such as glycerin and ethylene glycol, linear, branched or cyclic paraffins, petroleum oils such as kerosene, water; isopropyl myristate, laurin And esters such as hexyl acid. The content of the solvent is preferably 0.5 parts by mass or more and more preferably 1 part by mass or more with respect to 1 part by mass of the essential oil component which is an insecticidal component. Moreover, it is preferable that it is 1000 mass parts or less with respect to 1 mass part of essential oil components which are insecticide components, and, as for content of a solvent, it is more preferable that it is 500 mass parts or less. If it is in the said range, an undiluted | stock solution will not inhibit the effect of an aerosol composition, and it is easy to mix | blend the essential oil component which is an insecticidal component uniformly.

(Optional component)
As long as the stock solution does not inhibit the effect of the aerosol composition of the present embodiment, an optional component may be appropriately blended. Optional ingredients include non-ionic, anionic or cationic surfactants, antioxidants such as butylhydroxytoluene; stabilizers such as citric acid and ascorbic acid; inorganic powders such as talc and silicic acid; Agent), deodorant, fragrance (fragrance), pigment and the like.

  The content of the stock solution is preferably 0.01% by volume or more, more preferably 0.05% by volume or more in the aerosol composition. Further, the content of the stock solution is preferably 5% by volume or less, and more preferably 2% by volume or less in the aerosol composition. When the content of the stock solution is within the above range, the resulting aerosol composition is likely to maintain the cooling effect.

<Propellant>
The propellant is a medium for injecting the essential oil component that is the insecticidal component, and is pressurized and filled into the aerosol container together with the essential oil component that is the insecticidal component. When the aerosol composition is sprayed onto the target pest, the propellant can adhere to the target pest and cool the target pest by the heat of vaporization of the propellant. The propellant of this embodiment contains a hydrofluoroolefin and a low density propellant having a liquid density of less than 1 (g / mL) at 20 ° C.

(Hydrofluoroolefin)
Examples of the hydrofluoroolefin include hydrofluoropropene. Specifically, hydrofluoropropene is 1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, 2,3,3-trifluoropropene, 3,3,3- Examples include trifluoropropene, 1-chloro-3,3,3-trifluoropropene and the like. Examples of 1-chloro-3,3,3-trifluoropropene include (E) -1-chloro-3,3,3-trifluoropropene. Among these, it is preferable that the hydrofluoroolefin is 1,3,3,3-tetrafluoropropene because it exhibits an excellent cooling effect and has low flammability, and 1,3,3,3- Among tetrafluoropropenes, (E) -1,3,3,3-tetrafluoroprop-1-ene (also known as “trans-1,3,3,3-tetrafluoropropene”, “HFO-1234ze”) is more. preferable.

  The blending amount of the hydrofluoroolefin is preferably 5% by volume or more in the aerosol composition, and more preferably 10% by volume or more. Moreover, it is preferable that it is 70 volume% or less in an aerosol composition, and, as for content of hydrofluoroolefin, it is more preferable that it is 60 volume% or less. When the blending amount of the hydrofluoroolefin is within the above range, the flammability of the obtained aerosol composition is likely to be reduced.

(Low density propellant)
The low density propellant is a propellant having a liquid density at 20 ° C. of less than 1 (g / mL). Low density propellants include dimethyl ether (liquid density: 0.67 (g / mL)), liquefied petroleum gas (LPG, a mixture of normal butane, isobutane and propane (liquid density: about 0.5 to 0.6 ( g / mL))) and the like. Among these, it is preferable that a low density propellant is dimethyl ether from a point with comparatively low flammability.

  The content of the low density propellant is preferably 20% by volume or more in the aerosol composition, and more preferably 40% by volume or more. The content of the low density propellant is preferably 95% by volume or less, more preferably 90% by volume or less in the aerosol composition. When the blending amount of the low-density propellant is within the above range, the aerosol composition density of the obtained aerosol composition tends to show 1 (g / mL) or less.

  The volume ratio between the hydrofluoroolefin and the low-density propellant is not particularly limited as long as it is appropriately set in consideration of the cooling effect and flammability of the aerosol composition. For example, when the low-density propellant is dimethyl ether, the volume ratio of hydrofluoroolefin to dimethyl ether is preferably 1: 9 to 9: 1, and 1: 9 to 8: 2. More preferred.

  The content of the propellant is preferably 95% by volume or more, and more preferably 98% by volume or more in the aerosol composition. Moreover, it is preferable that it is 99.9 volume% or less in an aerosol composition, and, as for content of a propellant, it is more preferable that it is 99.5 volume% or less. When the content of the propellant is within the above range, the resulting aerosol composition is likely to maintain the cooling effect.

  In addition, in addition to the said propellant, in order to adjust the pressure of an aerosol composition, the aerosol composition of this embodiment may use together compressed gas, such as a carbon dioxide gas, nitrogen gas, compressed air, and oxygen gas. .

  The volume ratio of the stock solution of the aerosol composition and the propellant is preferably 0.01: 99.9 to 5:95, and more preferably 0.5: 99.5 to 2:98. By setting it as such a volume ratio, the aerosol composition can express the outstanding cooling effect.

  The aerosol composition of this embodiment contains the above-mentioned propellant (hydrofluoroolefin and low-density propellant), and the aerosol composition density is 1 (g / mL) or less. Thereby, the aerosol composition of this embodiment can remarkably enhance the insecticidal efficacy of the essential oil component which is an insecticidal component. In the present embodiment, the aerosol composition density (g / mL) is a value calculated by [weight of aerosol composition] / [volume of stock solution + total volume of each propellant]. In the aerosol composition of the present embodiment, the aerosol composition density may be 1 (g / mL) or less. The aerosol composition density is preferably 0.68 (g / mL) or more, more preferably 0.8 (g / mL) or more, and 0.95 (g / mL) or more. More preferably.

  As mentioned above, the aerosol composition of this embodiment contains the essential oil component which is an insecticidal component so that it may become 0.05 mass / volume% or less in an aerosol composition, and is a small quantity. However, the aerosol composition of this embodiment contains a hydrofluoroolefin and a low density propellant, and the aerosol composition density is 1 (g / mL) or less. As a result, the aerosol composition can sufficiently enhance the insecticidal efficacy against target pests even when the essential oil component, which is an insecticidal component, is as small as 0.05 mass / volume% or less.

[Aerosol products for pest control]
An aerosol product for controlling pests according to an embodiment of the present invention (hereinafter also referred to as an aerosol product) is a product in which an aerosol container (stock solution and propellant) is pressurized and filled in an aerosol container. In the following description, the aerosol container is a container widely used in the technical field of aerosol. Therefore, the following description is an illustration and the design of the aerosol container can be changed as appropriate.

  The aerosol container is mainly composed of a container body that is pressurized and filled with an aerosol composition, a valve that is attached to the container body, and an injection button that is attached to the valve.

  The container body is a substantially cylindrical container in which a space filled with an aerosol composition is formed. An opening is provided in the upper part of the container body. The opening is sealed by a valve.

  The valve is a member that closes the opening of the container body. The valve is fitted with an injection button. The valve incorporates an opening / closing member for switching between communication and blocking between the inside of the container body and the outside when the injection button is operated by the user. The opening / closing member includes a stem that slides up and down in conjunction with the injection button. By sliding the stem, communication (injection state) and blocking (non-injection state) of the aerosol composition are switched. The valve is formed with an under-tap hole for taking in the aerosol composition from the container body and a stem hole for sending the taken-in aerosol composition to the injection button.

  The injection button is a member attached to the valve. The injection button is formed with an injection hole through which the aerosol composition taken from the container body is injected through the stem hole of the valve. The aerosol composition is sprayed from the spray holes.

  In the aerosol product of the present embodiment, the discharge amount of the essential oil component, which is an insecticidal component, is preferably 0.1 mg or more per 3 seconds, and more preferably 0.5 mg or more per 3 seconds. In addition, when the essential oil component that is an insecticidal component has fragrance, the discharge amount of the essential oil component that is an insecticidal component is preferably 15 mg or less per 3 seconds from the viewpoint of reducing irritation caused by too strong aroma, More preferably, it is 5 mg or less per 3 seconds.

In addition, the aerosol product of this embodiment should just be able to inject an aerosol composition so that the enhanced insecticidal effect can be expressed with respect to a target pest, the pressure of the aerosol composition to be filled, the configuration of the valve and the injection button, etc. Can be set as appropriate. For example, the internal pressure of the aerosol product can be set to 0.1 to 0.6 MPa (25 ° C.). The valve may have a total area of the stem holes of 0.05 to 3.5 mm ² and a total area of the undertap holes of 0.05 to 5.0 mm ² . The injection button may have a total area of the injection hole set to 0.1 to 10 mm ² . In addition, the number and shape of the injection holes in the injection button may be adjusted.

  The aerosol product of this embodiment is pressure-filled with the aerosol composition. Therefore, the aerosol product can inject the pest control aerosol composition onto a target pest. The aerosol composition for controlling pests exhibits a sufficient insecticidal effect despite a small amount of the essential oil component which is an insecticidal component. As a result, the aerosol product can reduce the amount of the essential oil component that is an insecticidal component.

[Method for enhancing efficacy of insecticidal ingredients]
The method for enhancing the efficacy of an insecticidal component according to one embodiment of the present invention (hereinafter also referred to as efficacy enhancing method) uses an aerosol composition containing an essential oil component that is an insecticidal component and a propellant, thereby providing an essential oil that is an insecticidal component. It is a way to enhance the potency of an ingredient.

  The efficacy enhancing method of this embodiment may use the essential oil component and propellant that are the insecticidal components described above in the embodiment of the aerosol composition. That is, the essential oil component which is an insecticidal component is contained in the aerosol composition so as to be 0.05% by mass or less. The propellant includes hydrofluoroolefin and a low-density propellant having a liquid density of less than 1 (g / mL). Furthermore, in the efficacy enhancement method, the aerosol composition density at 20 ° C. of the aerosol composition indicates 1 (g / mL) or less. In addition, in the efficacy enhancement method of this embodiment, the method of adjusting a density so that the aerosol composition density in 20 degreeC of an aerosol composition may show 1 (g / mL) or less is not specifically limited. That is, as a result of blending the essential oil component as the insecticidal component, the hydrofluoroolefin, and the low-density propellant, the aerosol composition density at 20 ° C. of the resulting aerosol composition is 1 (g / mL) or less. If it is, the step of adjusting the density to 1 (g / mL) or less may be omitted. On the other hand, as a result of blending the essential oil component as the insecticidal component, the hydrofluoroolefin, and the low density propellant, the aerosol composition density at 20 ° C. of the resulting aerosol composition exceeds 1 (g / mL). In some cases, the aerosol composition density at 20 ° C. is adjusted to 1 (g / mL) or less by adjusting the type and blending amount of the low density propellant or by blending other low density components. A process may be employed.

  The method for enhancing the efficacy of this embodiment is that the aerosol composition density of the aerosol composition is 1 (g / mL) or less despite the small amount of the essential oil component that is the insecticidal component used. Efficacy can be enhanced sufficiently.

  The embodiment of the present invention has been described above. The present invention is not limited to the above embodiment.

  Hereinafter, the present invention will be described more specifically with reference to examples. The present invention is not limited to these examples.

Example 1
A stock solution was prepared according to the formulation in Table 1. The obtained stock solution was filled in a pressure-resistant aerosol container body (capacity: 300 mL) made of tinplate. Then, the container main body was closed with a valve (under tap hole diameter: 2.2 mm, stem hole diameter: 0.6 mm), and the propellant was pressurized and filled according to the formulation shown in Table 1. An injection button (injection hole: 2.5 mm, nozzle shape: forward taper) was attached to the valve to produce an aerosol product. The internal pressure of the obtained aerosol product was about 0.4 to 0.5 MPa.

＊１：ハイドロフルオロオレフィン（１，３，３，３−テトラフルオロ−１−プロペン（トランス異性体） ２０℃における液密度：１．１９４（ｇ／ｍＬ））
＊２：２０℃における液密度：０．６７（ｇ／ｍＬ）
＊３：液化石油ガス（組成：ノルマルブタンとイソブタンとプロパンとの混合物） ２０℃における液密度：０．５７（ｇ／ｍＬ）

* 1: Hydrofluoroolefin (1,3,3,3-tetrafluoro-1-propene (trans isomer) Liquid density at 20 ° C .: 1.194 (g / mL))
* 2: Liquid density at 20 ° C .: 0.67 (g / mL)
* 3: Liquefied petroleum gas (composition: mixture of normal butane, isobutane and propane) Liquid density at 20 ° C .: 0.57 (g / mL)

(Examples 2-8, Comparative Examples 1-5 and Reference Examples 1-2)
An aerosol product was produced in the same manner as in Example 1 except that the blending ratios shown in Table 1 were changed.

  About the aerosol composition obtained in Examples 1-8, Comparative Examples 1-5, and Reference Examples 1-2, the knockdown effect and lethality (%) were evaluated according to the following evaluation methods. The evaluation results are shown in Table 1.

<Knockdown effect>
FIG. 1 is a schematic diagram for explaining a method for evaluating a knockdown effect. As shown in FIG. 1, three target pests (black wagtail (female) not shown) were placed in a plastic cup 1 (KP cup KP860, Koike Plastics, Inc., inner diameter 130 mm, depth 100 mm). Calcium carbonate was applied to the inner wall surface of the plastic cup 1 so that the target pests would not escape. The plastic cup 1 is placed on the test stand 2 having an inclination of an angle θ (45 ° in this evaluation), and the aerosol composition filled in the aerosol product 3 is sprayed from a place 50 cm away from the plastic cup 1. . The amount of insecticidal component discharged from the aerosol composition was about 1.1 mg. After injection, the target pest is transferred to a clean plastic cup (not shown) equipped with solid food and water and whether to knock down and how many minutes after knockdown to recover is based on the following criteria: And evaluated. Solid food and water were freely consumed. The test was repeated 5 times, and the knockdown effect on a total of 15 target pests was evaluated.
(Evaluation criteria)
○: All target pests were knocked down and did not recover for 5 minutes.
Δ: At least one target pest did not knock down or all target pests were knocked down, but at least one of them recovered within 5 minutes.
X: All target pests were not knocked down.

<Fatality>
The aerosol composition was sprayed onto the target pests by the same method as the evaluation of the knockdown effect. The life and death of the target pests after 24 hours were observed, the target pests that died were counted, and the mortality rate (%) was calculated.

(Examples 9-11, Comparative Examples 6-7)
An aerosol product was produced in the same manner as in Example 1 except that the blending ratios shown in Table 2 were changed. For each of the obtained aerosol products having a substantially constant aerosol composition density, the knockdown effect and the mortality rate (%) were evaluated according to the evaluation method described above, except that about 10 g of the aerosol composition was injected per 3 seconds. The results are shown in Table 2.

  As shown in Table 1, the aerosol compositions of Examples 1 to 8 in which the density of the aerosol composition at 20 ° C. is 1 (g / mL) or less under the condition where the discharge amount of the insecticidal component is substantially constant, Also had a good knockdown effect and a high lethality. On the other hand, the aerosol compositions of Comparative Examples 1 to 5 having an aerosol composition density at 20 ° C. exceeding 1 (g / mL) did not have a sufficient knockdown effect and had a low lethality. In addition, the aerosol composition of Reference Examples 1-2 showed the same knockdown effect and lethality irrespective of whether the aerosol composition density in 20 degreeC is 1 (g / mL) or less.

  In addition, as shown in Table 2, the aerosol compositions of Examples 9 to 11 were formulated so that the insecticidal component was 0.05 mass / volume% or less under conditions where the aerosol composition density was substantially constant. Both had excellent knockdown effect and high lethality. On the other hand, the aerosol composition of Comparative Example 6 containing no insecticidal component had a low lethality. Moreover, the aerosol composition of Comparative Example 7 formulated so that the insecticidal component exceeded 0.05% by mass / volume was not sufficient in the knockdown effect, and the lethality was low. In summary, as shown in Table 1 and Table 2, the aerosol composition has an aerosol composition density of 1 (g / mL) or less, and includes an essential oil component that is an insecticidal component as an insecticidal component. It was found that the insecticidal efficacy was remarkably enhanced as a result of the content being 0.05 mass / volume% or less.

1 Plastic cup 2 Test stand 3 Aerosol product

Claims (3)

It is an aerosol composition for pest control containing an essential oil component that is an insecticidal component and a propellant,
The essential oil component is contained in the aerosol composition for pest control in an amount of 0.05 mass / volume% or less,
The propellant includes a hydrofluoroolefin and a low density propellant having a liquid density of less than 1 (g / mL),
An aerosol composition for controlling pests, wherein the density of the aerosol composition at 20 ° C. is 1 (g / mL) or less.   A pest control aerosol product, wherein the pest control aerosol composition according to claim 1 is pressure-filled, and the amount of the essential oil component discharged is 0.1 to 5 mg per 3 seconds. In a pest control aerosol composition containing an insecticidal component and a propellant, a method for enhancing the efficacy of the insecticidal component,
Select an essential oil component as the insecticidal component,
The essential oil component is contained in the aerosol composition for pest control in an amount of 0.05 mass / volume% or less,
As the propellant, a propellant containing hydrofluoroolefin and a low density propellant having a liquid density of less than 1 (g / mL) is selected, and the density of the aerosol composition becomes 1 (g / mL) or less. The method for enhancing the efficacy of the insecticidal component is adjusted as follows.

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