JPH0459703A - Miticide - Google Patents

Abstract

PURPOSE:To provide the subject safe miticide containing a compound selected from carvone, p-methylacetophenone, 2-phenylethylalcohol, thymol, etc., as the active component and effective to wool insect pests such as a bur, mosquitoes, mites, etc. CONSTITUTION:One or more compounds selected from carvone, p- methylacetophenone, 2-phenylethylalcohol, thymol, isothymol, methyl benzoate and methyl salicylate are used as the active components. In application, the above-mentioned compounds are used preferably after adsorption, mixing or dispersion using a suitable organic solvent or a suitable carrier although they may be used without any modification. The content of the active components is preferably about 3-10wt.%, especially about 3-5wt.% in case of a liquid drug, a powder drug, etc.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides carbon, p-methylacetophenone, 2-
Phenylethyl alcohol, thymol, isothymol,
The present invention relates to a novel acaricide having an acaricidal or acaricidal effect containing at least one member selected from the group consisting of methyl benzoate and methyl salicylate as an active ingredient.

[Prior Art] Indoor dust mites and the like are pests that cause damage to humans, such as allergies and school sickness. Organophosphate acaricides, carbamate acaricides, pyrethroid acaricides, etc. have been used to control these mites, but pyrethroid acaricides are widely used due to safety reasons. It has been. Other pest repellents include a pest repellent containing alkylphenol as an active ingredient that has a repellent effect against mites, cockroaches, black ants, etc. (Japanese Patent Application Laid-open No. 59-78105), and a combination of paraffin hydrocarbon and benzyl benzoate. Acaricides containing linalool (Japanese Patent Application Laid-open No. 61-83103), insecticides for fleas, house flies, mosquitoes, ticks, etc. containing linalool (Japanese Patent Application Laid-open No. 61-83103), isobornylthiocyanoacetate A tick repellent containing
4101) etc. have been proposed.

[Problems to be Solved by the Invention] However, the above-mentioned conventionally proposed acaricides having an acaricidal or acaricidal effect were not necessarily satisfactory.

The present inventors have carried out intensive research to develop an effective acaricide, and as a result, have succeeded in developing a new drug that exhibits excellent acaricidal or acaricidal properties, and have arrived at the present invention.

That is, an object of the present invention is to provide an acaricide that exhibits excellent acaricidal or acaricidal effects and is also highly safe.

[Means for Solving the Problems] The present invention provides carbon, p-methylacetophenone, 2-
Phenylethyl alcohol, thymol, isothymol,
Provided is a novel acaricide containing as an active ingredient at least one member selected from the group consisting of methyl benzoate and methyl salicylate.

Each of the above-mentioned components such as carvone is a compound known as a repellent or insecticide for wool pests such as burrs, clothing pests such as burrs, mosquitoes, cockroaches, etc. As a result of intensive research to develop acaricides against indoor house dust mites and other mites that cause damage such as school sickness, we have found that the ingredients selected above have particularly excellent acaricidal and acaricidal effects. Therefore, the present invention has been achieved.

Although each component such as carvone of the present invention may be used as it is, it is preferably used after being diluted with a suitable organic solvent such as denatured alcohol or ether, or after being adsorbed, mixed or dispersed on a suitable carrier.

Examples of the carrier include diatomaceous earth, alumina, acid clay, wood flour, kaolin, bentonite, activated carbon, paper, and silica. These carriers may be used alone or as a mixture of two or more. Further, each component such as carvone of the present invention may be used by impregnating or kneading various synthetic resins.

Furthermore, depending on the purpose of use, emulsifiers, dispersants, suspending agents,
It may be used in the form of oil, emulsion, wettable powder, powder, tablet, propellant, etc. by adding a wetting agent, stabilizer, etc.

The acaricide of the present invention may be appropriately blended with other acaricides, fragrances, etc., if necessary.

The concentration of active ingredients in the preparation and the application rate depend on the dosage form, prophylaxis,
Can be arbitrarily selected depending on extermination, type of active ingredient, and degree of damage caused by pests.Usually, the content of each component such as carvone of the present invention is about 3 to 10% by weight in the case of liquids, powders, etc.
is practical, and more practically, about 3 to 5% by weight is preferred.

The acaricide of the present invention applies the active ingredient itself or its preparation to areas where mites (e.g., woolly mites, white mites, claw mites, lice mites, dust mites, house dust mites, demodex mites, etc.) live, such as general households, dining room kitchens, furniture, and closets. ,
Spray, spray, etc. in washrooms or in necessary areas of grain storage
By applying various means such as coating, mites can be killed or prevented.

The present invention will be explained in more detail below based on Examples. In the following examples, % indicates weight % unless otherwise specified.

Example Kyuzo Yoshi x 1 Each component shown in Table 1 was added to denatured alcohol at a concentration of 5.
diluted to 0.26% and placed on a circular r paper with a diameter of 5.8 cm.
ml (at a rate of 100 g/m), impregnated for 24 hours.
XjJ air dried. The P paper was placed on the bottom of a glass petri dish with a diameter of 5.8 cm, and after about 100 live woolly mites were placed in it, the lid was covered with Japanese paper. Store these Petri dishes at room temperature.
It was left in an environment of 5% RH for 24 hours.

A control test was carried out in the same manner as above using paper impregnated with only denatured alcohol at the same ratio as above.

Each test was repeated twice.

After leaving it, the woolly mites were determined to be alive or dead. A living tick is one that is moving a part of its body.

The test results are shown in Table 1.

Table 1 [Effects of the Invention] According to the present invention, a novel acaricide exhibiting excellent acaricidal and acaricidal effects is provided.

Claims (1)

[Claims] A miticide containing as an active ingredient at least one member selected from the group consisting of carvone, p-methylacetophenone, 2-phenylethyl alcohol, thymol, isothymol, methyl benzoate and methyl salicylate.