Pest control spray

Abstract

To provide a pest control spray suitable for controlling pests hiding in the deeper regions of gaps.SOLUTION: A pest control spray is filled with a pest control composition containing water and at least one selected from the group consisting of pest control components, surfactants, and alcohols. The amount of the pest control composition released per single spray is 0.5-2.0 g. The spray force at a spray distance of 100 cm is 3.0 g f or more and 25.0 g f or less.SELECTED DRAWING: None

Description

[Technical field]

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

[0002] When controlling pests such as cockroaches and mosquitoes in a residence, a method of controlling the pests by spraying a pest control spray directly on the pests is used (for example, Patent Document 1). However, when visually identifying a pest and preparing and spraying a pest control spray, the pest may get into the back of a gap between a sofa or furniture and the floor or between the furniture and the wall, and even if the pest control spray shown in Patent Document 1 is sprayed toward the gap, the spray distance is short and it may not be possible to control the pest. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-92405 A Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, the present inventors conducted extensive research to prevent such a situation, and as a result, they discovered a pest control spray suitable for controlling pests that have entered deep inside gaps, which led to the present invention. [Means for solving the problem]

[0005] That is, the present invention provides: [1] A pest control spray containing a pest control composition containing at least one selected from the group consisting of a pest control component, a surfactant, and an alcohol, and water, the amount of the pest control composition sprayed per spray is 0.5 to 2.0 g; A pest control spray having a spray force of 3.0 g·f or more and 25.0 g·f or less at a spray distance of 100 cm. [2] A pest control method for controlling pests using the above-mentioned pest control spray. This provides: Effect of the Invention

[0006] According to the present invention, it is possible to control pests that have entered the deep side of gaps without blowing them away or crushing them. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Examples of pest control components used in the present invention include pyrethroid compounds such as pyrethrin, prallethrin, etofenprox, imiprothrin, fenothrin, allethrin, phthalthrin, resmethrin, furamethrin, permethrin, empenthrin, cyphenothrin, transfluthrin, metofluthrin, profluthrin, momfluorothrin, and dimefluthrin, organophosphorus compounds such as fenitrothion, dichlorvos, chlorpyrifos methyl, diazinon, and fenthion, carbamate compounds such as carbaryl and propoxur, and insecticidal compounds such as methoprene, pyriproxyfen, methoxadiazone, fipronil, and amidoflumet. Natural essential oils containing components having pest control properties such as p-menthane-3,8-diol, citral, menthol, citronellal, neral, geranial, and geranial may also be used. These pest control components and their amounts can be appropriately selected according to the type of target pest.

[0008] The surfactants used in the present invention include glycerin fatty acid esters sold under the names DECAGLYN-1-OV by Nikko Chemicals Co., Ltd. and 01075TX by Takemoto Oil Co., Ltd., sorbitan fatty acid esters sold under the names New Calgen D-935 by Takemoto Oil Co., Ltd., Rheodol SP-030V by Kao Chemical Co., Ltd., Rheodol SP-S10V by Kao Chemical Co., Ltd., Rheodol SP-P10 by Kao Chemical Co., Ltd., and Emazol O-10V by Kao Chemical Co., Ltd., Emanone CH-40 (Kao Corporation, POE (40) hydrogenated castor oil), Emanone CH-60 (Kao Corporation, POE (60) hydrogenated castor oil), Emanone Examples of such surfactants include polyoxyethylene hydrogenated castor oils having an average added mole number of ethylene oxide of 25 to 100 moles, such as CH-80 (manufactured by Kao Corporation, POE (80) hydrogenated castor oil), Nikkol HCO40 (manufactured by Nikko Chemicals Co., Ltd., POE (40) hydrogenated castor oil), Nikkol HCO60 (manufactured by Nikko Chemicals Co., Ltd., POE (60) hydrogenated castor oil), Nikkol HCO100 (manufactured by Nikko Chemicals Co., Ltd., POE (100) hydrogenated castor oil), New Calgen D-240K (manufactured by Takemoto Oil Co., Ltd., POE (40) hydrogenated castor oil), and New Calgen D-260K (manufactured by Takemoto Oil Co., Ltd., POE (60) hydrogenated castor oil). These surfactants may be used alone or in combination of two or more. When a surfactant is used, the amount of the surfactant added to the pest control composition is usually 1.0 to 10% by weight.

[0009] The alcohols used in the present invention include monohydric alcohols such as ethanol and isopropyl alcohol, as well as polyhydric alcohols such as sorbitol, propylene glycol, glycerin, 1,3-butylene glycol, and dipropylene glycol. The alcohols can be used alone or in combination of two or more. When alcohols are used, the amount of the alcohols is usually 0.1 to 10% by weight based on the pest control composition.

[0010] The amount of water used in the present invention is at least 40% by weight, preferably 50% by weight or more, more preferably 60% by weight or more, even more preferably 70% by weight or more, and even more preferably 80% by weight or more, based on the total amount of the pest control composition.

[0011] The pest control composition of the present invention may further contain other components, such as preservatives, chelating agents, pH adjusters, and fragrances (natural or synthetic fragrances). Preservatives include parabens such as phenoxyethanol and methylparaben. Chelating agents include metal salts of ethylenediaminetetraacetic acid (EDTA) such as sodium salt of ethylenediaminetetraacetic acid (EDTA), metal salts of ethylenediamine-N,N'-disuccinic acid (EDDS) such as sodium salt of ethylenediamine-N,N'-disuccinic acid (EDDS), and metal salts of gluconic acid such as sodium gluconate and potassium gluconate. pH adjusters include potassium chloride, citric acid, monopotassium citrate, disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium carbonate, and sodium hydrogen carbonate.

[0012] The pest control spray of the present invention can be produced by filling a container with the above-mentioned pest control composition and attaching a trigger-type spray head to the container.

[0013] The pest control spray of the present invention is equipped with a trigger-type spray head that sprays 0.5 to 2.0 g of the pest control composition per spray and has a spray force of 3.0 g·f or more and 25.0 g·f or less at a spray distance of 100 cm. If the spray force is less than 3.0 g·f, a sufficient amount of the pest control composition will not be sprayed on the pests, and if it exceeds 25.0 g·f, some pest species may be blown away or crushed by the spray force.

[0014] The spray force can be measured by spraying the pest control spray at the approximate center of a 60 mm diameter jig attached to an IMADA digital force gauge (load cell maximum load 2 N). When measuring, the distance from the nozzle of the pest control spray to the jig is 100 cm.

[0015] When the pest control spray of the present invention is sprayed, the particle size of the spray is preferably within the ranges of 150 to 350 μm for the cumulative 10% particle size in the volume distribution, 300 to 500 μm for the 50% particle size, and 400 to 800 μm for the 90% particle size.

[0016] Here, the spray particle diameter can be measured using the F600 lens (focal length 600 mm, measurable range 2.8 to 2000 μm) of an AEROTRAC II (Microtrack Bell Co., Ltd.) by spraying pest control spray from a position 30 cm away from the laser.

[0017] A trigger-type spray head has a mechanism in which a piston applies pressure to a pest control composition filled in a cylinder by operating a trigger, and the composition is sprayed from a nozzle, and the cylinder volume, nozzle hole diameter, shape, etc. can be designed to obtain the spray force of the present invention. Examples of trigger-type spray heads that can be used in the present invention include Canyon's MODEL TS95SJ10 JET pattern and T95STD.

[0018] Examples of containers for filling the pest control composition include bottle containers made of polyethylene terephthalate and pouch containers made of laminated films.

[0019] Examples of pests that the pest control spray of the present invention can control include flies such as house flies, small flies such as fruit flies and moth flies, mosquitoes such as Culex pipiens and Aedes albopictus, cockroaches such as the German cockroach and the Siberian cockroach, spiders such as Orb spiders and Orb spiders, millipedes such as the burnt millipede and the red millipede, centipedes such as the Japanese worm and the Japanese worm, and stink bugs such as the brown stink bug and the German winged green bug. The pest control spray of the present invention can be used not only when these pests get into gaps in a dwelling, but also outdoors. EXAMPLES

[0020] The present invention will be further described below with reference to examples, but the present invention is not limited to these examples.

[0021] [Preparation of pest control composition] In a 100 ml SUS beaker, 0.13 g of Jomon extract (Sumitomo Natural Pyrethrin 75, pyrethrin content: 75 wt.%, hereinafter omitted), 2.5 g of glycerin fatty acid ester (01075TX, Takemoto Oil Co., Ltd.), 0.5 g of sorbitan fatty acid ester (New Calgen D935, Takemoto Oil Co., Ltd.), and 0.9 g of phenoxyethanol (Newpol EFP, Sanyo Chemical Industries, Ltd.) were weighed and mixed with a stirring rod. Next, 95.7 g of purified water was weighed into a 200 ml SUS container, and the above mixture was dropped using a pipette over 60 seconds while stirring at a rotation speed of 6000 rpm using a homogenizer (TK Robomics, Primix Co., Ltd.), and the rotation speed of the homogenizer was changed to 10000 rpm and mixed for 30 minutes to prepare a pest control composition. EXAMPLES

[0022] 300 g of the above pest control composition was prepared and filled into a commercially available spray product container (capacity 345 ml), and then a trigger-type spray head (manufactured by Canyon, model T95SJ10) was attached to obtain the pest control spray of the present invention. EXAMPLES

[0023] 300 g of the pest control composition was prepared and filled into a commercially available spray product container (capacity 345 ml), and then a trigger-type spray head (manufactured by Yoshino Kogyo Co., Ltd., model YT-97100 trigger) was attached to obtain a pest control spray of the present invention.

[0024] 300 g of the pest control composition was prepared and filled into a commercially available spray product container (capacity 345 ml), and then a trigger-type spray head (manufactured by Canyon, model T-014) was attached to obtain a pest control spray.

[0025] 300 g of the pest control composition was prepared and filled into a commercially available spray product container (capacity 345 ml), and then a trigger-type spray head (manufactured by Canyon, model CHA-5A) was attached to obtain a pest control spray.

[0026] [Measurement of injection amount] The weight of each type of pest control spray was measured before and after spraying to determine the amount sprayed. The results are shown in the table below.

[0027] [Measurement of injection force] The spray force was measured by attaching a 60mm diameter jig to an IMADA digital force gauge (load cell maximum load 2N), and the distance from the nozzle of the pest control spray to the jig was 100cm. The pest control spray was sprayed aiming at the approximate center of the jig, and the spray force of various pest control sprays was measured. The results are shown in Table 1.

[0028] [Table 1] TIFF2024176677000001.tif1580

[0029] [Efficacy Test] Ten adult female Culex pipiens mosquitoes were placed in a plastic cup (260cc) with filter paper on the bottom, and the cup was covered with nylon gauze (1mm mesh). The cup was placed on the floor, and various pest control sprays were sprayed from a distance of 100cm. After checking whether the insects were crushed and whether the container was blown away immediately after spraying, Culex pipiens mosquitoes that were not crushed were collected and fed absorbent cotton containing 1% sugar water as food. The number of dead insects 24 hours after spraying under conditions of temperature 25°C and humidity 50-60% was counted and the mortality rate was calculated. The test was repeated three times, and the average mortality rate was calculated. The results are shown in Table 2.

[0030] [Table 2] TIFF2024176677000002.tif2080

[0031] [Measurement of spray particle size] The spray particle diameter of the pest control spray of Example 1 was measured using AEROTRAC II (Microtrack Bell Co., Ltd.). The lens used was an F600 lens (focal length 600 mm, measurable range 2.8 to 2000 μm). The measurement was performed by spraying from a position 30 cm away from the laser, and the particle diameter was measured three times for one trigger spray. Table 3 shows the cumulative 10% particle diameter, 50% particle diameter, and 90% particle diameter in the volume distribution.

[0032] [Table 3] TIFF2024176677000003.tif1554

Claims

1. A pest control spray containing a pest control composition containing a pest control component, at least one selected from the group consisting of a surfactant and an alcohol, and water, the amount of the pest control composition sprayed per spray is 0.5 to 2.0 g; A pest control spray having a spray force of 3.0 g·f or more and 25.0 g·f or less at a spray distance of 100 cm.

2. A method for controlling pests, comprising using the pest control spray according to claim 1 to control pests.

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