Composition for pest control

Abstract

To provide a composition for pest control exhibiting excellent stability during storage.SOLUTION: A composition for pest control comprising pyrethrin, ammonium dodecyl sulfate, and at least one component selected from the group consisting of water and alcohols.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] In response to the growing consumer preference for natural products, pest control compositions containing Calystegia extract as a pest control ingredient have been developed.

[0003] Patent Documents 1 and 2 disclose aqueous pest control compositions that use a Calyx extract and that take safety into consideration. However, as disclosed in these documents, the compositions have problems such as the formation of floating matter and cloudiness depending on the type of surfactant contained in the composition. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2020-176105 [Patent Document 2] Patent Publication No. 2022-112444 Summary of the Invention [Problem to be solved by the invention]

[0005] As a result of extensive research, the present inventors have discovered a pest control composition having excellent storage stability, which has led to the present invention. [Means for solving the problem]

[0006] That is, the present invention provides: [1] A pest control composition comprising pyrethrin, ammonium dodecyl sulfate, and one or more members selected from the group consisting of water and alcohols. This provides: [Effects of the Invention]

[0007] According to the present invention, the storage stability of the pest control composition is excellent. DETAILED DESCRIPTION OF THE INVENTION

[0008] The pyrethrins used in the present invention contain six types of natural pyrethrins, namely, pyrethrin I and II, cinerin I and II, and jasmolin I and II, as well as plant-derived impurities and solvents. It is preferable to use pyrethrins with a concentration of natural pyrethrins of 10% to 80%. The content of pyrethrins is usually 0.01 to 5.0% by weight of the total amount of the pest control composition.

[0009] The dodecyl ammonium sulfate used in the present invention may be, for example, Emal AD-25R (active ingredient content: 25% by weight) manufactured by Kao Corporation. The content of dodecyl ammonium sulfate is usually 0.05 to 30% by weight based on the total weight of the pest control composition.

[0010] When the pest control composition of the present invention contains an alcohol, the alcohol may be a monohydric alcohol such as ethanol or isopropyl alcohol, or a polyhydric alcohol such as sorbitol, propylene glycol, glycerin, 1,3-butylene glycol, or dipropylene glycol, and one or more of these alcohols may be used. The content of the alcohol is usually 0.1 to 85% by weight of the pest control composition.

[0011] When the pest control composition of the present invention contains water, the content of water is not particularly limited, but is preferably 10% by weight or more, and more preferably 20% by weight or more.

[0012] The pest control composition of the present invention may further contain other components, such as pest control components other than the Calyx extract, other surfactants, preservatives, chelating agents, pH adjusters, fragrances, etc. Preservatives include phenoxyethanol, parabens such as methylparaben, etc. Other surfactants include, for example, glycerin fatty acids. Fatty acid esters, sorbitan oleate, sorbitan stearate, sorbitan palmitate Examples of suitable chelating agents include metal salts of ethylenediaminetetraacetic acid (EDTA), such as sodium EDTA, metal salts of ethylenediamine-N,N'-disuccinic acid (EDDS), such as sodium EDDS, and metal gluconates, such as sodium gluconate and potassium gluconate. Examples of suitable pH adjusters include potassium chloride, citric acid, monopotassium citrate, disodium hydrogen phosphate, potassium dihydrogen phosphate, sodium carbonate, and sodium bicarbonate.

[0013] The pest control composition of the present invention can be used in the form of a spray formulation, which can be sprayed directly onto pests or sprayed in advance onto objects such as carpets, flooring, and sofas to control pests.

[0014] Examples of pests that can be controlled by the pest control composition of the present invention include flies such as house flies, small gnats 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-web spiders and Orb-web spiders, millipedes such as the fire millipede and the red millipede, centipedes such as the Japanese bush warbler and the blue bush warbler, stink bugs such as the brown marmorated stink bug and the German-winged green bug, and mites. [Example]

[0015] The present invention will be further explained below with reference to examples, but the present invention is not limited to these examples.

[0016] [Preparation of pest control composition] Various pest control compositions were prepared according to Table 1. The surfactants used were Emal AD-25R (liquid containing 24% by weight of ammonium lauryl sulfate, manufactured by Kao Corporation) and NIKKOL SLS (powder of sodium lauryl sulfate, manufactured by Nikko Chemicals Co., Ltd.). % in the table refers to % by weight.

[0017] [Table 1] TIFF2025154163000001.tif35107

[0018] The various formulations were stored in a thermostatic chamber at 40°C for one month, and the appearance of the compositions was checked. The results are shown in Table 2.

[0019] [Table 2] TIFF2025154163000002.tif3538

Claims

[Claim 1] A pest control composition comprising pyrethrin, ammonium dodecyl sulfate, and at least one member selected from the group consisting of water and alcohols.

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