JP6086700B2 - Pest control agent and pest control method using the same - Google Patents

Description

The present invention is a pest control agent, especially rainwater tanks, sewage tanks, gutters, drainage pools, garden depressions, waste tires, flowerpot water wells, indoor drains and under unit baths in general households. The present invention relates to a pest control agent for treating a small water system, and a pest control method using the same.

Pest control methods include source control and adult control for eggs and larvae of pests. The former is an attempt to eliminate pests in total, mainly by municipalities and contractors, and it can be said that it is an efficient method if it is made as planned, but in reality this method completely eradicates eggs and larvae. Is impossible, and the current situation is to leave the pests that are generated to the latter.
For example, juvenile hormones are used for combating larvae such as septic tanks, but their effects are generally very slow, and they are not easy to use for personal control in ordinary households. Thus, until now, pest control agents for pest eggs and larvae have been unfamiliar in general households.

By the way, in general households such as rainwater traps, sewage tanks, gutters, drainage pools, garden depressions, waste tires, drainage of flowerpots, mosquitoes that originate from drainage and unit baths, etc. Countermeasures are required against pests generated in indoor and outdoor small water systems. In the past, it was common to control adult worms using transpiration agents or sprays, but this is not always effective. On the other hand, as described above, prevention agents for home use There was not. However, the present inventors conducted various tests on the premise that the occurrence preventive agent is effective when extinguishing the pests generated in the small water system of general households, and treat the septic tank in the course of the examination. It is necessary to obtain a high lethal effect in a shorter time than usual, and for small water systems in the house, the source itself should be cleaned to prevent sporadic entry of adults into the house and reproduction. It was also found to be important. After that, it was recognized that the use of a bactericidal agent was extremely useful, and the present invention was completed. However, the technical idea of applying a bactericidal agent to immediate pest control rather than a microorganism is completely new.

For example, Japanese Patent Application Laid-Open No. 9-30912 (Patent Document 1) describes that soil nematodes and the like can be controlled by irrigating ozone-dissolved water and / or hydrogen peroxide water into the soil. Also, Japanese Patent No. 2811512 is rich in oxygen, such as a hydrogen peroxide solution, with a hole at a predetermined height of a standing tree, with respect to the one where the worm has propagated on the trunk of the standing tree, etc. Disclosed are pest control methods for trees that control harmful microorganisms by injecting the solution into the trunk, but these are all intended to improve the environment over a long period of time, and are intended to be effective immediately Technical thought is different from pest control.

Japanese Patent Laid-Open No. 9-30912 Japanese Patent No. 2811512

The present invention treats rainwater tanks, sewage tanks, gutters, drainage pools, garden depressions, waste tires, flowerpots, and small water systems such as under a house drain or a unit bath outside a general household. In this case, the source of pests can be controlled with a short treatment, and for the small water system in the house, a pest control agent capable of preventing the generation of pests by cleaning the source itself was used. It aims at providing the pest control method.

The present invention has been found that the following constitution has an excellent effect for achieving the above-mentioned object.
(1) Chlorine fungicides (excluding chlorite) , guanidine fungicides, phenol fungicides, benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, and polyalkylaminodiethylglycine hydrochloride One or more fungicides selected from the above, or a surfactant added thereto (excluding benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, polyalkylaminodiethylglycine hydrochloride) as an active ingredient An insecticide for fly larvae for water treatment,
(2) The disinfectant is dichloroisocyanurate, trichloroisocyanuric acid, hypochlorite, benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, polyalkylaminodiethylglycine hydrochloride, chlorhexidine gluconate The fly-type larvae control agent for aqueous treatment according to (1), which is at least one selected from isopropylmethylphenol and cresol.
(3) The disinfectant is at least one selected from dichloroisocyanurate, trichloroisocyanuric acid, hypochlorite, and benzalkonium chloride, for aqueous treatment according to (2) Flyfly larvae control agent.
(4) The surfactant according to any one of (1) to (3), wherein the surfactant is one or more selected from the following surfactants having an alkyl group having 12 to 18 carbon atoms as a hydrophobic group The fly-type larvae control agent for water-system treatment of any one.
Nonionic surfactant polyoxyethylene stearyl ether, coconut oil fatty acid diethanolamide,
A cationic surfactant, cetyltrimethylammonium chloride,
Α-sulfo fatty acid methyl ester which is an anionic surfactant, α-olefin sulfonate,
Amphoteric surfactants, myristyl dimethyl betaine, palm oil fatty acid amidopropyl betaine.
(5) A method for controlling fly larvae for water-based treatment, which comprises subjecting the pest control agent according to any one of (1) to (4) to water-based treatment for controlling fly larvae.

The pest control agent of the present invention can be used for outdoor rainwater tanks, sewage tanks, gutters, drainage pools, garden depressions, waste tires, flowerpot water wells, indoor drains, and under unit baths. In treating the water system, the source of pests can be removed with a short treatment, and the small water system in the house is very practical because it can be prevented by cleaning the source itself. high. And the pest control method using this also has an effective control effect especially for the pests of fly eyes.

The pest control agent of the present invention is characterized by using a bactericide as an active ingredient. Disinfectants include chlorine-based disinfectants (dichloroisocyanurate, trichloroisocyanuric acid, hypochlorite, etc.), cationic surfactants (benzalkonium chloride, benzethonium chloride, etc.), amphoteric surfactants (alkyldiamino) Ethyl glycine hydrochloride, polyalkylaminodiethyl glycine hydrochloride, etc.), guanidine fungicides (chlorhexidine gluconate, etc.), phenol fungicides (isopropyl methylphenol, cresol, etc.), aldehyde fungicides (glutaraldehyde, etc.) , Imidazole fungicides (benzimidazole, thiabendazole, etc.), iodine fungicides (iodoform, etc.), organic acid fungicides (benzoic acid, sodium benzoate, dehydroacetic acid, sodium dehydroacetate, sorbic acid, etc.), hydroxybenzoic acid Esters (p- Xybenzoic acid methyl ester, p-oxybenzoic acid ethyl ester, p-oxybenzoic acid propyl ester, p-oxybenzoic acid butyl ester, etc.), alcoholic fungicides (benzyl alcohol, phenylethyl alcohol, chlorobutanol, etc.), polylysine However, it is not limited to these. Among them, chlorine-based fungicides, cationic surfactants, amphoteric surfactants, guanidine fungicides, and phenol-based fungicides are preferable in terms of performance. Specifically, dichloroisocyanurate, trichloroisocyanuric acid, If one or more kinds selected from chlorite and the like and benzalkonium chloride are contained as active ingredients, an excellent pest control effect can be obtained.

The blending amount of the bactericide is appropriately 0.1 to 75 w / v% based on the total amount of the pesticide, although it depends on the type of bactericide used. If it is less than 0.1 w / v%, the desired extermination effect cannot be obtained. On the other hand, it is not preferable to add 75 w / v% or more because it may affect the physical properties of the preparation.

In this invention, it is preferable to contain surfactant in addition to the said disinfectant as an active ingredient. Some bactericides include surfactants such as cationic surfactants (benzalkonium chloride, benzethonium chloride, etc.) and amphoteric surfactants (alkyldiaminoethylglycine hydrochloride, polyalkylaminodiethylglycine hydrochloride, etc.). Although what is called is also included, as long as it shows any effect | action, its use will not interfere.

The surfactant is considered to have an action of improving the penetrability of the fungicide into the insect body, and preferably has an alkyl group having 12 to 18 carbon atoms as a hydrophobic group in the molecule.
Examples of surfactants include nonionic surfactants (polyoxyethylene higher alkyl ethers such as polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkylphenyl ethers, Higher fatty acid amine oxides such as oxyethylene styryl phenyl ethers, polyoxyethylene higher fatty acid esters, polyoxyethylene sorbitan fatty acid esters, sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, laurylamine oxide, stearylamine oxide , Polyoxyethylene hydrogenated castor oil, coconut oil fatty acid diethanolamide, polyoxyethylene polyoxypropylene alkyl ether, etc.), click Surfactants (such as benzalkonium chloride), anionic surfactants (α-sulfo fatty acid methyl ester, α-olefin sulfonate, linear benzene sulfonate, lauryl sulfate, lauryl sulfate triethanolamine) And polyoxyethylene lauryl sulfate ester salts) and amphoteric surfactants (myristyl dimethyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl dimethylaminoacetic acid betaine, lauric acid amidopropyl dimethylamine oxide, etc.).
Among them, nonionic surfactant polyoxyethylene stearyl ether, coconut oil fatty acid diethanolamide, cationic surfactant benzalkonium chloride, anionic surfactant α-sulfo fatty acid methyl ester, α- One or more selected from olefin sulfonate, myristyl dimethyl betaine, which is an amphoteric surfactant, and palm oil fatty acid amidopropyl betaine are excellent in performance and suitable for the purpose of the present invention.

In addition, the amphoteric surfactant has the merit that it can impart foaming properties in addition to the action of enhancing the extermination effect, and the nonionic surfactant is useful for solubilizing the insecticidal components described later. . The amount of the surfactant is suitably about 0.05 to 10 times that of the bactericidal agent.

Examples of the pesticide dosage form include liquid agents, emulsions, aqueous solvents, microemulsions and aerosols used in the form of sprays, and solid agents such as powders, tablets, granules, and baits.
Solvents used to prepare spray-form pest control agents include, in addition to water, hydrocarbon solvents such as n-paraffin and isoparaffin, carbon numbers such as ethanol, isopropanol (IPA) and n-propanol (nPA). Having 1 to 3 lower alcohols, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, dipropylene glycol, diethylene glycol monobutyl ether, etc., glycols having 3 to 6 carbon atoms, glycol ethers, ketone solvents An ester solvent or the like may be used as appropriate. In the case of aerosol form, put aerosol solution into aerosol container and pressurize with dimethyl ether as propellant, liquefied petroleum gas (LPG), compressed gas (nitrogen gas, carbon dioxide, nitrous oxide, compressed air, etc.) Can be made.

For the preparation of solid agents such as powders, granules and tablets, various mineral powders such as silicic acid, kaolin and talc, various vegetable powders such as wood flour and wheat flour, and dispersion are used for the purpose of increasing and shaping. Agents, gelling agents such as polyvinyl alcohol, alginic acid, and carrageenan are appropriately used. The base material does not affect the bleaching component, and the prepared solid agent is required to have an appropriate water decomposability when treated in an aqueous system.

In the present invention, in addition to the components described above, a pyrethroid synergist, a foaming agent, a dispersant, a binder, a stabilizer, a pH adjuster, You may mix | blend an odorant, a coloring agent, etc. suitably.

Examples of the pyrethroid synergist include piperonyl butoxide and N- (2-ethylhexyl) -bicyclo [2,2,1] hept-5-ene-2,3-dicarboximide. Moreover, citric acid, sodium hydrogencarbonate, etc. can be illustrated as a foaming agent.

The container filled with the pest control agent in the form of a spray 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. The application amount may be appropriately determined. For example, when used in an outdoor small water system, about 10 to 100 mL / m ² is appropriate.
On the other hand, in the case of solid preparations such as granules and tablets, it is used by spraying or mounting in the above-mentioned small water system with a guideline of about 5 to 50 g / m ² , and it exhibits water and pest control effects.

The pest control agent of the present invention thus obtained can be used for outdoor rainwater traps, sewage tanks, gutters, drainage pools, garden depressions, waste tires, drainage of flowerpots, indoor drains and unit baths. By spraying, spraying, or placing on the lower water system, etc., eggs such as mosquitoes such as mosquitoes, chikaeka, butterflies (fly flies, fly flies etc.), flies such as Drosophila, house flies, cockroaches, chironomids, etc. It shows a practical lethal effect on each stage of larvae, pupae and adults and realizes excellent extermination treatment. Moreover, in the treatment in a house, the source itself is cleaned by the action of the bactericidal agent, and is extremely practical because it prevents the occurrence of adults over a long period of time.

Next, the pest control agent of the present invention will be described in more detail based on specific examples. Representative examples of commercially available surfactants are described below, and are hereinafter referred to as abbreviated symbols.
(Nonionic)
・ Brownon EL-1507: POE (7.5) lauryl ether [N-1]
Nonionic S-207: POE (7) stearyl ether [N-2]
-Starhome F: palm oil fatty acid diethanolamide (1: 2 type) [N-3]
Aromox DM10D-W: Decyldimethylamine oxide [N-4]
Aromox DM12D-W: Lauryldimethylamine oxide [N-5]
Aromox DM14D-N: Myristyldimethylamine oxide [N-6]
Aromox DMC-W: coconut alkyl dimethylamine oxide [N-7]
(Cationic)
・ Cathogen TML: lauryltrimethylammonium chloride [K-1]
-Levon TM-16: Cetyltrimethylammonium chloride [K-2]
(Anionic)
Monogen Y-500: sodium lauryl sulfate [A-1]
Sun base: α-sulfo fatty acid methyl ester sodium salt [A-2]
Liporan PB-800: α-olefin sulfonic acid sodium salt [A-3]
(Bisexual)
Nissan Anon BL-SF: lauryldimethylaminoacetic acid betaine [B-1]
・ Ricavion A-200: Myristyldimethylbetaine [B-2]
Enacol C-30B: palm oil fatty acid amidopropyl betaine [B-3]

The test methods used for the evaluation of insecticidal efficacy are as follows.
(1) Insecticidal efficacy test against mosquito larvae A plastic container (860B, φ12 cm × height 10.5 cm) was filled with an aqueous solution of reagent reagent and water adjusted to a predetermined concentration (total amount 200 mL). Then, 8 day-old larvae were released, and lethal insects were counted every predetermined time, and the lethality was calculated.
(2) Insecticidal efficacy test against giant larvae larvae A plastic container (200B, φ10 cm × height 4.4 cm) was filled with an aqueous solution of reagent reagent and water adjusted to a predetermined concentration (total amount 20 mL). The giant fly fly 4th larvae were released there, and lethal insects were counted every predetermined time, and the lethality was calculated.
(3) Insecticidal efficacy test against flea flies and Drosophila melanogaster A glass reagent petri dish (φ4 cm) was filled with an aqueous solution of reagent reagent adjusted to a predetermined concentration and water (total amount 2 mL). Flea flies and Drosophila melanogaster larvae were released there, and lethal insects were counted every predetermined time to calculate the mortality rate.

Table 1 shows the results obtained by preparing a reagent solution having a concentration of 0.25 w / v% using various water-soluble solvents and using the water-soluble solvent, and performing the insecticidal efficacy tests shown in the above (1) to (3). Shown in

As a result of the test, all of the various fungicides were found to have high lethality against Culex larvae and were effective against other insect larvae.

Mixing 0.005 w / v% sodium dichloroisocyanurate (product name: Highlight 60G), 0.0025 w / v% amphoteric surfactant [B-3], and water (remainder) An inventive pest control agent was prepared.
200 mL of the obtained liquid agent was sprayed on an outdoor drainage reservoir in which a bowfra was generated. This agent was able to more effectively achieve larval control and prevention of occurrence of larvae such as mosquitoes over approximately one week, and also helped clean the drainage pool.

According to Example 2, sodium dichloroisocyanurate (product name: Highlight 60G) 0.005 w / v% is selected as a bactericidal agent, and various surfactants 0.0025 w / v% are combined to form a liquid agent type shown in Table 2. Various pest control agents were prepared. Table 2 shows the results of the insecticidal efficacy test for the above (1) Culex larvae.

As a result of the test, the pest control agent of the present invention, which selected sodium dichloroisocyanurate as the bactericidal agent, was highly controlled against the mosquito larva by combining 0.0025 w / v% with various surfactants at a concentration of 0.005 w / v%. Showed the effect. As surfactants, those having an alkyl group having 12 to 18 carbon atoms as a hydrophobic group in the molecule are generally effective, and are considered to contribute to the improvement of penetrability of fungicides into insects.
Even if the surfactant alone does not contain a bactericidal agent, it may be effective at a high concentration, but it is not practical.

In order to confirm the synergistic effect of the combination of the disinfectant and the surfactant, according to Example 3, 0.0025 to 0.005 w / v% sodium hypochlorite as the disinfectant and α as the surfactant -Sulfo fatty acid methyl ester sodium salt 0.0025 w / v% was selected to prepare various pest control agents of liquid type shown in Table 3. Table 3 shows the results of the insecticidal efficacy tests shown in (1) to (3) above.

As a result of the test, it was confirmed that the disinfecting effect was synergistically enhanced by combining the surfactant with the bactericide. This tendency was more obvious at the stage of larvae than pupae.

3.5 g of sodium dichloroisocyanurate (product name: Highlight 60G) and 1.5 g of an anionic surfactant [A-3] were mixed to prepare a tablet type pest control agent of the present invention.
A plastic container (φ25 cm × 12 cm, volume 5890 cm ³ ) was filled with water that had been pumped outdoors, and about 120 squid larvae were released there. Every day, 200 B (about 350 mL) cups were used to scoop up the squid larvae in the container, and lethal and healthy insects were counted to calculate the number of lethals. As a result, it was confirmed that the lethality reached 100% by the third day, and it was proved that it was extremely useful and practical as a bowfura control agent. In addition, dead human adult mosquitoes that occurred outdoors were also included, and it was found that this drug is also effective against adult mosquitoes.

The pest control agent of the present invention is intended for the control of a wide range of pests, not only for small water systems indoors and outdoors in general households, but also for mosquitoes such as mosquitoes and chikaeka, and fly flies such as butterflies, fruit flies and house flies. It is possible to use.

Claims (5)

Chlorinated fungicides (except chlorite) , guanidine fungicides, phenolic fungicides, benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, and polyalkylaminodiethylglycine hydrochloride Contains one or more fungicides, or a surfactant added thereto (excluding benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, polyalkylaminodiethylglycine hydrochloride) as an active ingredient An insecticide for fly larvae for water treatment. The disinfectant is dichloroisocyanurate, trichloroisocyanuric acid, hypochlorite, benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, polyalkylaminodiethylglycine hydrochloride, chlorhexidine gluconate, isopropylmethyl It is 1 or more types chosen from a phenol and a cresol, The fly-type larvae extermination agent for water-system processing of Claim 1 characterized by the above-mentioned. The fly larvae for water-based treatment according to claim 2, wherein the fungicide is at least one selected from dichloroisocyanurate, trichloroisocyanuric acid, hypochlorite, and benzalkonium chloride. Pesticide. The said surfactant is 1 or more types chosen from the following surfactants which have a C12-C18 alkyl group as a hydrophobic group, Any one of Claim 1 thru | or 3 characterized by the above-mentioned. The fly-type larvae control agent for water-system treatment as described.
Nonionic surfactant polyoxyethylene stearyl ether, coconut oil fatty acid diethanolamide,
A cationic surfactant, cetyltrimethylammonium chloride,
Α-sulfo fatty acid methyl ester which is an anionic surfactant, α-olefin sulfonate,
Amphoteric surfactants, myristyl dimethyl betaine, palm oil fatty acid amidopropyl betaine. A method for controlling fly larvae for water-based treatment, which comprises treating the pest control agent according to any one of claims 1 to 4 with water to control fly larvae.