Spray for controlling indoor pests

Abstract

To provide a spray for controlling indoor pests that can control wandering pests such as cockroaches.SOLUTION: A spray for controlling indoor Blattodean pests comprises pyrethrin as a pyrethroid compound, sorbitan fatty acid ester as a surfactant, water, and citral, wherein the weight of citral is 0.01 to 1 wt.% based on the total weight of the pyrethroid compound, surfactant, water, and citral, and the weight of water is 88 wt.% or more, and the spray is sprayed and applied to areas where the pests wander.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a spray for indoor pest control. [Background technology]

[0002] An indoor pest control spray filled with a pest control agent containing a pyrethroid compound, a surfactant, and water is known (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2011-144141 Summary of the Invention [Problem to be solved by the invention]

[0004] Such indoor pest control sprays are so-called hand sprays, which do not use compressed gas, and generally have a weaker spray pressure than aerosol sprays. As a result, the spray particles sprayed from finger sprays tend to be large, and it is said that it is difficult to keep them suspended in the air for long periods of time.

[0005] The indoor pest control spray according to Patent Document 1 is capable of controlling flying pests such as mosquitoes, flies, and small gnats by allowing the spray particles to evaporate little by little as they fall onto the floor or the like. Since cockroaches and other wandering pests also inhabit indoors, there has been a demand for a pest control spray that can control wandering pests such as cockroaches by spray particles that fall to the floor or the like.

[0006] Therefore, as a result of extensive research, the present inventors have found that it is an object of the present invention to provide an indoor pest control spray having superior control effect against wandering pests. [Means for solving the problem]

[0007] The present inventors conducted extensive research to solve the above problems and arrived at the present invention. [1] A spray for indoor pest control containing pyrethroids, a surfactant, water and citral. [2] The above indoor pest control spray, wherein the weight of citral is 0.01 to 1% by weight based on the total weight of the pyrethroid compound, the surfactant, the water and the citral. [3] The above indoor pest control spray when the pest is a wandering pest. [4] The above indoor pest control spray for controlling cockroaches. [5] The above indoor pest control spray is applied by spraying to areas where pests roam. to provide. Effect of the Invention

[0008] According to the present invention, it is possible to efficiently control wandering pests living indoors. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Examples of pyrethroid compounds used in the indoor pest control spray of the present invention include etofenprox, fenothrin, prallethrin, phthalthrin, imiprothrin, resmethrin, permethrin, cyphenothrin, tralomethrin, transfluthrin, metofluthrin, allethrin, bifenthrin, silafluofen, cyfluthrin, cyhalothrin, profluthrin, momfluorothrin, empenthrin, deltamethrin, and pyrethrins. Among these, etofenprox, fenothrin, and pyrethrins are preferably used.

[0010] Examples of surfactants that can be used in the indoor pest control spray of the present invention include glycerin fatty acid esters, and sorbitan fatty acid esters such as sorbitan oleate, sorbitan stearate, and sorbitan palmitate.

[0011] Citral exists as a mixture of geranial and neral, which are stereoisomers, but the ratio of these is not particularly limited in the citral used in the indoor pest control spray of the present invention. Citral is generally known as one of the aromatic components contained in essential oils such as lemon scented tea tree oil.

[0012] The weight of citral contained in the indoor pest control spray of the present invention is 0.01 to 1% by weight based on the total weight of the pyrethroid compound, surfactant, water and citral. The weight of water is 88% by weight or more based on the total weight of the pyrethroid compound, surfactant, water and citral, so that contamination of floors and the like can be suppressed.

[0013] The indoor pest control spray of the present invention may further contain other ingredients, such as alcohols, preservatives, bactericides, fungicides, deodorants, pH adjusters, chelating agents, and fragrances. Examples of the alcohols include monohydric alcohols such as ethanol and isopropyl alcohol, and polyhydric alcohols such as sorbitol, propylene glycol, glycerin, 1,3-butylene glycol, and dipropylene glycol. Examples of the preservatives include eucalyptus oil, phenoxyethanol, and parabens such as methylparaben.

[0014] Examples of the spray container used in the indoor pest control spray of the present invention include hand spray containers such as trigger spray containers and finger spray containers. Examples of such trigger spray containers include containers in which a trigger-type spray device is attached to the mouth of the container body into which the pest control composition is filled, as disclosed in FIG. 4 of JP-A Nos. 2005-288256 and 2011-144141. Further, examples of finger spray containers include containers having a finger spray attached to the mouth of the container body into which the pest control composition is filled, as disclosed in, for example, FIG. 5 of JP-A No. 2011-144141 and FIG. 10 of JP-A No. 9-256272.

[0015] The average particle size of the spray particles sprayed from the indoor pest control spray of the present invention is adjusted to 80 to 350 μm, preferably 100 to 250 μm. The spray particles referred to here are particles passing through a position 30 cm from the nozzle tip of the spray container. The average particle size is the particle size at 50% of the cumulative value in the volume-based particle size distribution obtained by the laser diffraction / scattering method, and can be measured by AEROTRAC SPR MODEL-7340 manufactured by Nikkiso Co., Ltd.

[0016] The amount of the indoor pest control spray of the present invention sprayed per push is adjusted to be 0.3 to 1.5 mL.

[0017] The indoor pest control spray of the present invention is mainly used by spraying and applying it to areas where pests roam, such as indoor floors and walls, as well as furniture such as chairs and desks.

[0018] The pests that can be controlled by the indoor pest control spray of the present invention include the following pests. Bedbugs such as Cimex lectularius; Blattella pests: German cockroach, Smoky brown cockroach, American cockroach, Brown cockroach, Oriental cockroach, etc.; Acarina pests: ticks such as Haemaphysalis longicornis, Haemaphysalis flava, Ixodes yamatanensis, and Ixodes sulcatus; acarid mites such as Tyrophagus putrescentiae; house dust mites such as Dermatophagoides farinae and Dermatophagoides pteronyssinus; chigger mites such as Tetranychus nigricans and Tetranychus stag beetle; house dust mites; bird mites; Of these, it is particularly effective against cockroach pests. In addition, the spray particles that adhere to the floor, etc., evaporate and Dipteran pests: Culex pipiens quinquefasciatus, Culex tritaeniorhynchus, Culex quinquefasciatus, Aedes mosquitoes, Aedes aegypti, Aedes albopictus, chironomids, houseflies, Musca domestica, Drosophila melanogaster, Phormia maxima, moth flies, black flies, horseflies, stable flies, leaf miners, etc.; It is also possible to prevent the following. EXAMPLES

[0019] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0020] [Creating indoor pest control sprays] [Example 1] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 0.01 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 96.86 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare an indoor pest control spray of the present invention (hereinafter referred to as present invention spray 1).

[0021] [Example 2] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 0.03 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 96.84 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare an indoor pest control spray of the present invention (hereinafter referred to as present invention spray 2).

[0022] [Example 3] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 0.07 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 96.80 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare a spray for indoor pest control of the present invention (hereinafter referred to as spray 3 of the present invention).

[0023] [Example 4] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 0.1 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 96.77 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare a spray for indoor pest control of the present invention (hereinafter referred to as spray 4 of the present invention).

[0024] [Example 5] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 0.5 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 96.37 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare a spray for indoor pest control of the present invention (hereinafter referred to as spray 5 of the present invention).

[0025] [Example 6] 0.13 wt% of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75 wt%) as a pyrethroid compound, 3 wt% of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, 1.0 wt% of citral (manufactured by Kanto Chemical Co., Ltd.) and 95.87 wt% of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to prepare a spray for indoor pest control of the present invention (hereinafter referred to as spray of the present invention 6).

[0026] [Comparative Example 1] 0.13% by weight of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75% by weight) as a pyrethroid compound, 3% by weight of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, and 96.87% by weight of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to create a comparative indoor pest control spray (hereinafter referred to as Comparative Spray 1).

[0027] [Comparative Example 2] 0.13% by weight of pyrethrin (Sumitomo Natural Pyrethrin 75, manufactured by Sumitomo Chemical Co., Ltd., natural pyrethrin content: 75% by weight) as a pyrethroid compound, 5% by weight of a glycerin fatty acid ester (01075TX, manufactured by Takemoto Oil Co., Ltd.) as a surfactant, and 94.87% by weight of water were mixed and stirred, and then filled into a commercially available trigger spray container and a trigger (Model T-95, manufactured by Canyon Co., Ltd.) was attached to create a comparative indoor pest control spray (hereinafter referred to as Comparative Spray 2).

[0028] [Test for cockroach control effect] The spray nozzle was positioned so that the nozzle hole was facing the central region of a 15cm x 15cm x 4mm decorative board (Sunprint Normandy Pine No. 119), and from a distance of 30cm from the decorative board, Inventive Spray 6, Comparative Spray 1, and Comparative Spray 2 were each sprayed onto the decorative board so that 1.0g of spray liquid adhered to the board.The board was then left to stand for 30 minutes in a room with a temperature of 25°C and a humidity of 26%, to create a decorative board with the spray liquid applied to it. Next, the inside surface of a plastic cup 10 cm in diameter and 15 cm in height was coated with margarine to prevent the cockroaches from escaping, and three male and three female Smoky Brown cockroaches were placed in the cup. After that, the decorative plate with the spray liquid applied thereon was placed over the opening of the cup, which was then turned upside down, and the Smoky Brown cockroaches were allowed to wander around on the decorative plate for five minutes. After collecting the cockroaches in a separately prepared plastic cup, the number of knocked-down (KD) insects was counted 60, 120, 180, 300, 600, 1200 and 1800 seconds after collection, and the KT50 value was calculated using the probit method. The above test was repeated twice, and the average KT50 value was calculated. The results are shown in Table 1.

[0029] TIFF2025078878000001.tif44105

Claims

1. 1. A spray for controlling indoor cockroach pests, comprising pyrethrin as a pyrethroid compound, a sorbitan fatty acid ester as a surfactant, water and citral, the weight of citral is 0.01 to 1% by weight and the weight of water is 88% by weight or more based on the total weight of the pyrethroid compound, the surfactant, the water and the citral; The spray for controlling indoor cockroaches is applied by spraying to areas where the pests roam.

2. An indoor cockroach pest control spray as described in claim 1, which contains only pyrethrin as a pyrethroid compound.

3. A spray for controlling indoor cockroaches as described in claim 1 or 2, which has excellent knock-down effect.

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