JP5840477B2 - Ant control agent - Google Patents

Description

  The present invention relates to an ant control agent.

In recent years, the damage and complaints of ants entering the house from the outside have increased, and ants are listed as one of the important unpleasant insects. The main control methods are spraying liquids or aerosols containing insecticidal ingredients, or feeding baits, bringing them back to the nest, and eradicating the whole nest, but ants do not even enter the house. Some say that it is not always necessary to remove them. For this reason, the present condition is also exploring the method of applying an ant repellent beforehand to a house entrance, the periphery, etc. which want to block an ant invasion.

For example, Japanese Patent No. 3848412 (Patent Document 1) includes natural oils such as oak moss, sandalwood oil, spearmint oil, thyme white oil, butterfly oil, garlic oil, cinnamon leaf oil, thyme red oil, Peruvian sam balsam. An ant repellent containing one or more active ingredients is described. Although this repellent uses natural essential oil, it is safe and can be used without problems even indoors, and has a spatial repellent effect. However, the repellent effect is not sufficient.
Japanese Patent No. 4813870 (Patent Document 2) discloses cyfluthrin as a pyrethroid insecticidal component, cinnamon powder as a repellent component against insect pests prepared from a plant, and dipropylene glycol and / or tripropylene glycol. Disclosed is a powder for controlling insect pests, which is formulated in a mineral carrier. Although this powder is subject to restrictions on the place of application, it is known that cinnamon powder, which is a compounding component, contains cinnamic aldehyde that exhibits an excellent repellent effect against ants and is excellent in sustainability.

Japanese Patent No. 3848412 Japanese Patent No. 4813870

An object of the present invention is to provide an ant control agent which has a high repellent effect on ants and is excellent in its sustainability.

The present invention has been found that the following constitution has an excellent effect for achieving the above-mentioned object.
(1) Application Benefits cycloalkyl-decenyl acetate, tricyclodecenyl propionate, tricyclodecenyl isobutyrate, te tiger hydro geraniol, full E phenethyl isoamyl ether, di-tetrahydroindenyl 2,4 dioxane, Ma Gunoran, and ant control agent characterized by containing one or more as ants repellent component selected from Rubafuran.
(2) Further, it is characterized by containing one or more kinds selected from undecyl aldehyde, lauryl aldehyde, tridecyl aldehyde, and palmitic aldehyde, which are saturated hydrocarbon aldehydes, as an ant repellent component (1 The ant control agent according to).
(3) Further, one or two cyclopentanones selected from 2-pentylcyclopentanone, 2-cyclopentylcyclopentanone, 2-n-hexylcyclopentanone, and 2-octenylcyclopentanone The ant control agent according to (1) or (2), which contains a species or more as an ant repellent component .
(4) The ant control agent according to any one of (1) to (3) , further comprising dihydrojasmon as an ant repellent component .
(5) Any one of (1) to (4), further containing one or more of isopropyl myristate, butyl myristate, ethyl palmitate, and ethyl stearate as a repellent effect sustained component of the ant repellent component 1. The ant control agent according to 1.
(6) Further ant control agent according to any one of the insecticidal component, to have (1) to a flame volatile pyrethroid is less than 1 × 10 ^-4 mmHg vapor pressure at 30 ° C. (5).
(7) The ant control according to (6), wherein the non-volatile pyrethroid is one or more selected from cyfluthrin, phenothrin, permethrin, ciphenothrin, cypermethrin, tralomethrin, fenpropatoline, etofenprox. Agent.
(8) The ant control agent according to any one of (1) to (7), which is used in a spray form.

The ant control agent of the present invention contains a specific ant repellent component, and preferably has a high repellency effect against ants by further blending a repellent effect sustaining component, and is extremely practical because it has excellent sustainability. High nature. Moreover, the ant control agent of the present invention further containing an insecticidal component has the merit that the insecticidal effect is imparted together with the repellent effect, and the control performance is more reliably achieved.

The specific ant repellent component (repellent fragrance) used in the ant control agent of the present invention includes cis-jasmon, dihydrojasmon, hydrocarbon aldehydes having a total carbon number of 11 to 16, and a carbon number of 5 to 8 as a substituent. Cyclopentanones having an alkyl group, alkenyl group or cycloalkyl group, tridecanone, citronellyl acetate, pt-butylcyclohexyl acetate, tricyclodecenyl acetate, tricyclodecenyl propionate, tricyclodece Nylisobutyrate, cinnamic alcohol, dihydrolinalool, tetrahydrogeraniol, estragal, phenethylisoamyl ether, diphenyl ether, dihydroindenyl-2,4-dioxane, 2,6-dimethyl-3-ethylpyrazine, citronellylnitrile, male Nolan, and Rubafuran and the like, one or more kinds selected from these are used.
In addition, about 0.01-5.0 w / v% (in the case of a solid agent, 0.01-5.0 w / w%) is suitable for the compounding quantity of an ant repellent component per ant control agent. In the case of the aerosol form described later, the content of each component per ant control agent is indicated by the concentration in the aerosol stock solution. If it is less than 0.01 w / v%, the desired repellent effect cannot be obtained. On the other hand, even if it exceeds 5.0 w / v%, the repellent effect does not increase in accordance with the blending amount.
Such an ant repellent component is a perfume component having relatively low volatility and excellent in sustainability. However, in the present invention, a repellent effect sustained component described later is blended, and even when used outdoors, the repellent effect is over one week. What can ensure enough is preferable.

In the present invention, in order to enhance the ant repellent effect at the initial stage of application, a relatively high volatility ant repellent, such as stemon, allyl heptanoate, styryl acetate, l-carvone, 2-hexenal, etc. Of course. Also, sandalwood oil, spearmint oil, thyme white oil, butterfly oil, garlic oil, cinnamon leaf oil, thyme red oil, jasmine oil, neroli oil, bergamot oil, orange oil, geranium oil, petit glen oil, lemon oil, lemongrass Essential oils such as oil, cinnamon oil, and eucalyptus oil can be appropriately blended.

In the ant control agent of the present invention, a repellent effect sustained component is suitably blended for the purpose of ensuring the durability of the ant repellent fragrance. Examples of such repellent effect sustaining components include higher fatty acid esters having a total carbon number of 16 to 20, polyalkylene glycol, or ethers thereof. Among them, one or more selected from higher fatty acid esters such as isopropyl myristate, butyl myristate, ethyl palmitate and ethyl stearate are preferable in terms of performance, and isopropyl myristate is particularly suitable. It was.
In addition, as a compounding quantity of a repellent effect sustained component, about 2 to 30 times the said ant repellent component is suitable.

The ant control agent of the present invention further contains an insecticidal component and can impart an insecticidal effect as well as an repellant effect to ensure the control performance. Insecticidal components include pyrethroid insecticidal components, organophosphorus agents such as fenitrothion, carbamate agents such as carbaryl and propoxur, organosilicon compounds such as silafluophene, and neonicotinoid compounds such as imidacloprid and dinotefuran. Pyrethroid-based insecticidal components are preferred from the viewpoint of insecticidal effect on human and safety for human animals. Examples of pyrethroid insecticidal components are cyfluthrin, phenothrin, permethrin, ciphenothrin, cypermethrin, tralomethrin, fenpropatoline, which has a vapor pressure at 30 ° C. of less than 1 × 10 ⁻⁴ mmHg and is non-volatile at room temperature. On the other hand, natural pyrethrin, allethrin, praretrin, framethrin, phthalthrin, resmethrin, imiprotolin, empentrin, transfluthrin, methfluthrin, profluthrin, etc., which are excellent in immediate effect, can be mentioned. One kind of these compounds may be used, or two or more kinds of compounds may be used in combination. In the present invention, a combination of cyfluthrin that can be expected to have residual effect and natural pyrethrin that exhibits a superior effect on ants is preferred.
The pyrethroid insecticidal component includes optical isomers and geometric isomers based on the asymmetric carbon and double bond, and the use of each of these or any mixture thereof is also included in the present invention. Of course.
The content of the insecticidal component is suitably about 0.02 to 5.0 w / v% (0.02 to 5.0 w / w% in the case of a solid agent) per ant control agent. If it is less than 0.02 w / v%, the desired effect cannot be obtained. On the other hand, if it exceeds 5.0 w / v%, it is difficult to stabilize the liquid content.

As the dosage form of the ant control agent, in addition to liquid agents, emulsions, aqueous solvents, microemulsions, aerosols, etc. used in the form of sprays, solid agents such as powders, granules, bait agents, etc., spray forms, among others An aerosol form containing a propellant is easy to use and convenient. In other words, the aerosol stock solution is put into an aerosol container and pressurized with dimethyl ether, liquefied petroleum gas (LPG), compressed gas (nitrogen gas, carbon dioxide gas, nitrous oxide, compressed air, etc.) as a propellant for convenience. High aerosol can be provided.

Although it does not specifically limit as a solvent used in order to prepare the spray form ant control agent, Hydrocarbon solvents, such as n-paraffin and isoparaffin, are easy to use. Other types of solvents, for example, lower alcohols having 1 to 3 carbon atoms such as ethanol, isopropanol (IPA) and n-propanol (nPA), propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, C3-C6 glycols such as dipropylene glycol and diethylene glycol monobutyl ether, glycol ethers, ketone solvents, ester solvents and the like may be used as appropriate.
On the other hand, for the preparation of solid agents such as powders, granules, and baits, various mineral powders such as silicic acid, kaolin and talc, various vegetable powders such as wood flour and wheat flour, for the purpose of increasing and shaping, Gelling agents such as polyvinyl alcohol, alginic acid, and carrageenan are appropriately used.

In the present invention, in addition to the above components, as long as the effect of the present invention is not hindered, a pyrethroid synergist, a surfactant, a solubilizer, a dispersant, a stabilizer, a pH adjuster, You may mix | blend a deodorizer, a coloring agent, etc. suitably.

Examples of the pyrethroid synergist include piperonyl butoxide and N- (2-ethylhexyl) -bicyclo- [2,2,1] -5-heptene-2,3-dicarboximide. Examples of the surfactant include polyoxyethylene hydrogenated castor oil, polyoxyethylene higher alkyl ethers (polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, etc.), polyoxyethylene alkylphenyl ethers, polyoxyethylene. Nonionic surfactants such as higher fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene polyoxypropylene alkyl ether, laurylamine oxide, stearylamine oxide, lauric acid amide Examples thereof include higher alkylamine oxide surfactants such as propyldimethylamine oxide.

A container filled with an ant control agent may be appropriately selected in the shape of a valve, a nozzle, a nozzle, a spray port, etc. according to its use, purpose of use, usage scene, and the like. For example, if a trigger spray type with a wide-angle nozzle is used, a wide range can be processed with a single operation, which is convenient. It may be appropriately determined even for application rates. For example, when used in around the entrance, (in the solid ^{dosage, 10~50g / m 2) 10~50mL /} m 2 degree is appropriate.

The thus obtained ant control agent of the present invention is sprayed or sprayed, placed on the interior of a kitchen, a door, a front door, a window, etc., a veranda, a porch, a house, etc. Has a practical repellent effect against black ants, red ants, flying squirrels, white whale ants, luriari, black ants, house peas, argentine ants, etc., and is extremely practical because it blocks the entry of ants into the house for over a week. is there. Moreover, in the ant control agent of this invention which further contains an insecticidal component, an insecticidal effect is provided with the said repellent effect, and a control performance is achieved more reliably.

Next, the ant control agent of the present invention will be described in more detail based on specific test examples and examples.

[Test Example 1]
The following repellency test was conducted on the test ant repellents shown in Table 1.
[Repellent efficacy test]
0.5 mL of an acetone solution containing 5 mg of the test fragrance was dropped onto a filter paper having a diameter of 9 cm, and cut into half after air drying. This half and the untreated filter paper were placed on a glass petri dish having a diameter of 9 cm so as not to overlap. The inner wall of the glass petri dish was coated with talc, and 30 white whale ants were released. After 5 minutes and 2 hours, the number of insects on the treated surface and untreated surface was counted, and the repellent rate was determined according to the following formula.
Repellent rate = [(number of invading insects on untreated surface−number of invading insects on treated surface) / number of insects to be tested × 100]
The results are shown in Table 1 together with the following evaluation criteria.
Repelling rate 80% or more; ○, repelling rate 50-80%; Δ, repelling rate less than 50%;

As a result of the test, the specific ant repellent used in the present invention showed a high repellent effect and durability against the white ant. On the other hand, it was considered that a fragrance having an excellent repellent effect but having too high volatility does not meet the object of the present invention.

0.4% w / v of cinnamic alcohol, 0.35 w / v% of 2-cyclopentylcyclopentanone (total carbon number: 10), 0.03 w / v% of lauryl aldehyde (C12), and cis-jasmon Ant repellent containing 0.01 w / v% (1.0 w / v% as the total amount of fragrance), 12 w / v% isopropyl myristate as a repellent effect sustained component, and 0.3 w / v cyfluthrin as an insecticidal component An aerosol stock solution containing v% and natural pyrethrin 0.1 w / v% and neothiozole n-paraffin as a solvent was prepared. After 50 mL of this aerosol stock solution was filled into an aerosol container, 50 mL of liquefied petroleum gas (LPG) was pressure-filled to obtain an aerosol form ant control agent of the present invention.
When the the back door or front door space ant control agent was about 20mL spray process per 1 m ^2, from entering the house ants for 3 weeks it was observed. In addition, several black ants and red ants that died at a distance from the treated site were observed, indicating that the insecticidal component surely reinforces the control effect in addition to the repellent effect of the ant repellent.

According to Example 1, various ant control agents shown in Table 2 were prepared, and the following repellency test was performed. The component composition other than the ant repellent fragrance, the repellent effect sustaining component, and the insecticidal component was the same as in Example 1.
[Repellent efficacy test]
The test ant control agent was dropped onto a 20 cm square tile so as to be 20 mL per 1 m ² . Absorbent cotton impregnated with 3% aqueous sucrose solution as an attractant was placed in the center of the tile, and placed on the grassy land where ants live. After a predetermined period, the ants gathered in the attractant were counted and the control effect was examined.
Evaluation criteria (number of ants gathered);
0; ◎, 1-10; ◯, 11-30; △, 31 or more; ×

As a result of the test, the ant control agent of the present invention containing a specific ant repellent is preferably high against ants over a long period of time by adding a repellent effect sustaining ingredient, more preferably also an insecticidal ingredient. A repellent effect and excellent persistence were observed.
On the other hand, in the comparative example using other than the ant repellent perfume prescribed by the present invention, the persistence of the repellent effect was not improved even when a repellent effect continuous component was added.

The ant control agent of the present invention can be used not only for ants but also for the purpose of controlling a wide range of pests.

Claims (8)

Application Benefits cyclo-decenyl acetate, tricyclodecenyl propionate, tricyclodecenyl isobutyrate, te tiger hydro geraniol, full E phenethyl isoamyl ether, di-tetrahydroindenyl-2,4-dioxane, Ma An ant control agent comprising one or more selected from gnolan and rubafuran as an ant repellent component. Furthermore, one or more kinds selected from undecyl aldehyde, lauryl aldehyde, tridecyl aldehyde, and palmitic aldehyde, which are saturated hydrocarbon aldehydes, are contained as ant repellent components. Ant control agent. Furthermore, one or more selected from 2-pentylcyclopentanone, 2-cyclopentylcyclopentanone, 2-n-hexylcyclopentanone and 2-oxenylcyclopentanone which are cyclopentanones. It contains as an ant repellent component , The ant control agent of Claim 1 or 2 characterized by the above-mentioned. Furthermore, ant control agent according to any one of claims 1, characterized that you containing dihydrojasmonate as ants repellent component 3. 5. The ant repellent component of the present invention further comprises one or more of isopropyl myristate, butyl myristate, ethyl palmitate and ethyl stearate as a repellent effect sustaining component of the ant repellent component . Item 1. An ant control agent according to item 1. As a further insecticidal component, ant controller according to any one of claims 1 to 5, characterized in that the vapor pressure to a flame volatile pyrethroid is less than 1 × 10 ^-4 mmHg at 30 ° C.. 7. The non-volatile pyrethroid is one or more selected from cyfluthrin, phenothrin, permethrin, ciphenothrin, cypermethrin, tralomethrin, fenpropatoline and etofenprox. Ant control agent. The ant control agent according to any one of claims 1 to 7, wherein the ant control agent is used in a spray form.