JP2002114613A - Pest control agent for septic tank - Google Patents

Abstract

(57) [Abstract] (Modified) [Problem] In controlling pests and flies in septic tanks,
Provided is an effective pest control agent for a septic tank that can maintain its efficacy for a long period of time. SOLUTION: An insect-controlling agent for a septic tank, wherein an ester compound represented by the general formula (1) is held as an active ingredient by an organic polymer compound. (In the formula, R represents a methyl group or a methoxymethyl group.)

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the control of pests generated in a septic tank and the control of flies.

[0002]

2. Description of the Related Art In Japanese Patent Application Laid-Open No. Hei 9-12405,
BACKGROUND ART Pest control agents for septic tanks in which an active ingredient is held on a water-soluble solid carrier are known.

[0003]

However, the insecticides for septic tanks are not always sufficient in long-term efficacy. The present invention provides an effective control of pests generated in a septic tank typified by a fly, such as a fly and a fly, and particularly an effective control over a long period of time.

[0004]

According to the present invention, general formula (1) as an active ingredient is used. (In the formula, R represents a methyl group or a methoxymethyl group.) Since the insecticidal agent for a septic tank in which an ester compound represented by the following formula (1) is held by an organic polymer compound has a long-lasting effect, It is extremely effective in controlling generated pests.

Further, the present invention provides a method for controlling fly flies, such as flies and flies, which are typical examples of pests generated in a septic tank, wherein the ester compound represented by the general formula (1) as an active ingredient is highly organic. It is said that a fly control agent held by a molecular compound is effective.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The ester compound represented by the general formula (1) (hereinafter, referred to as the present compound) is a compound described in JP-A-2000-63329, and can be produced, for example, by the following method. Equation (2) And a carboxylic acid compound or an acid chloride thereof represented by the general formula (3): (Wherein, R represents the same meaning as described above).
The reaction is usually performed in an organic solvent, if necessary, in the presence of a reaction aid. The reaction time is usually from 5 minutes to 72 minutes.
The reaction temperature is usually in the range from -80 ° C to the boiling point of the solvent used in the reaction or 200 ° C.
The molar ratio of the carboxylic acid compound represented by the formula (2) or the acid chloride thereof to the alcohol compound represented by the general formula (3) is preferably 1: 1 or a ratio close thereto. Examples of the reaction assistant include tertiary amines such as triethylamine, 4-dimethylaminopyridine and diisopropylethylamine, dicyclohexylcarbodiimide, 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, diethylazodicarboxylate and diisopropylazodiamine. Examples include reagents of dicarboxylate and triphenylphosphine. As the solvent, hydrocarbons such as toluene and hexane, ethers such as diethyl ether and tetrahydrofuran, halogenated hydrocarbons such as dichloromethane and 1,2-dichloroethane, amides such as dimethylformamide, ketones such as acetone, Organic sulfurs such as dimethylsulfoxide and the like and mixtures thereof. After completion of the reaction, the compound can be obtained by subjecting the reaction solution to a usual post-treatment operation such as extraction with an organic solvent and concentration. The present compound can also be purified by an operation such as chromatography. still,
The carboxylic acid compound represented by the formula (2) is described in J. Am. Che
m. Soc. The alcohol compound represented by the general formula (3) can be produced according to the method described in JP-A-57-123146 or JP-A-56-97251. It can be manufactured according to.

This compound has optical isomers (R, S) based on asymmetric carbon, geometric isomers (E, Z) based on a double bond, and geometric isomers (cis, trans) based on a cyclopropane ring. However, the present compounds include all optical isomers, geometric isomers and mixtures thereof having pest control activity.

The insect pest control agent for purifying tanks and the fly control agent of the present invention are those in which the present compound, which is an active ingredient, is held by an organic polymer compound. And other insecticidal component compounds, for example, 1-ethynyl-2-methyl-
2-pentenyl chrysanthemate, 3-allyl-2-
Methylcyclopenta-2-en-4-one-1-yl
2,2,3,3-tetramethylcyclopropanecarboxylate, 2,3,5,6-tetrafluorobenzyl
3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate and the like are mentioned, and as the potency enhancer, for example, piperonyl butoxide and the like are mentioned. The content of the present compound in the pesticidal composition for a septic tank or the insecticide of the present invention is usually 0.5 to 20% by weight.

The organic polymer compound used in the present invention is a water-insoluble synthetic resin or synthetic rubber. Among them, a thermoplastic resin or a thermoplastic rubber is preferably used. Examples thereof include polyethylene, polypropylene, and polybutene-1.
Α-olefin polymers such as these, copolymers thereof (α-olefin copolymer), ethylene-vinyl acetate copolymer,
Ethylene-unsaturated carboxylic acid-based copolymers such as ethylene-methyl (meth) acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate-methyl (meth) acrylate copolymer, polyvinyl acetate, and polycarbonate , Polyester, polyamide, polystyrene, polymethyl methacrylate, and mixtures thereof. Particularly, use of a polyolefin polymer such as an α-olefin polymer, an α-olefin copolymer, and an ethylene-unsaturated carboxylic acid copolymer is preferred.

[0010] The pest control agent for septic tanks and the flies control agent of the present invention, in which the present compound is held by an organic polymer compound, may have an antioxidant, if necessary, in order to impart stability.
UV absorbers, anti-blocking agents and the like are added.

Examples of the antioxidant include butylhydroxyanisole (BHA), stearyl β- (3,
5-di-t-butyl-4-hydroxyphenyl) propionate, 4,4'-thiobis (3-methyl-6-t-
Butylphenol) (TBMTBP), triphenyl phosphite, and the like. Examples of the ultraviolet absorber include phenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, and 2- (2′-hydroxy-). 5'-methylphenyl)
Examples include benzotriazole, and examples of the antiblocking agent include starch, wax, tributyl borate, and the like.

The pest control agent for purifying a septic tank and the fly control agent of the present invention in which the present compound is held by an organic polymer compound, the organic polymer compound is impregnated with the compound by a method such as impregnation, coating, etc. It is manufactured by kneading an organic polymer compound and the present compound using a kneader such as a screw extruder, a twin screw extruder, and a Banbury mixer, and appropriately molding.
The temperature at the time of molding is preferably 170 ° C. or less from the viewpoint of suppressing the loss of the present compound at the time of molding.

The pest control agent and the fly control agent for septic tanks of the present invention are usually installed and used at the application site as they are. When applied in a septic tank, it is convenient to use it by hanging it from the top of the septic tank.
It is preferable to use a formed body such as a string or a net. It is preferable that these molded articles have a thickness in the range of about 0.5 to 5 mm from the viewpoint of the durability of the effect and the like. The amount is usually about 0.1~30g in the space 1 m ³ per the amount of compound septic tank or the like. Incidentally, in order to increase the evaporation efficiency of the present compound, it may be formed into a shape having a high specific surface area (surface area per unit volume).

The pest control agent for septic tanks of the present invention is effective for controlling insect pests such as flies, flies, flies, flies, midges, house flies and falcons which are generated in the septic tank.

The fly control agent of the present invention is also useful for the flies which are generated in the septic tank, for example, the flies such as Drosophila and Drosophila, the flies such as D. melanogaster, the flies and the flies and the flies. It is effective for controlling flies, such as flies. Furthermore, it is also effective in controlling flies, such as Drosophila, Barnyard fly, and Fly fly, which are generated in toilets due to garbage, and is installed and used in these places.

[0016]

The present invention will be described below in more detail with reference to examples. Example 1 (1) Ethylene-methyl methacrylate copolymer (manufactured by Sumitomo Chemical Co., Ltd., trade name: Acryft WH202)
95 parts by weight and (1R, 3R) -2,2-dimethyl-3-
(1-propenyl) cyclopropanecarboxylic acid (2,
After melt-kneading 5 parts by weight of 3,5,6-tetrafluoro-4-methylphenyl) methyl in a closed pressure kneader (manufactured by Moriyama Seisakusho) utilizing the heat generated by shearing, hot extruding using an extruder. Cutting was performed to obtain pellets. (2) Then, the obtained pellets are molded by an extrusion molding machine,
A sheet having a pressure of 2 mm and a width of 75 cm was produced. The extrusion temperature was adjusted to 150 ° C. at the T-die. The manufactured sheet is cut into a length of 150 cm and subjected to a test described later.

Example 2 (1R, 3R) -2,2-Dimethyl-3- (1-propenyl) cyclopropanecarboxylate (2,3,5,6-tetrafluoro-4-methylphenyl) methyl Examples except for using [2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl] methyl (1R, 3R) -2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate A sheet was obtained in the same manner as in Example 1.

Example 3 Pellets were prepared under the same conditions as in Example 1 (1), and the pellets were extruded through a deformed die for forming a net using an extruder to obtain a strand diameter of 1 mm and a mesh interval of 5 mm.
A corner net-like molded product was obtained. The obtained reticulated body is subjected to the test described below.

Example 4 (1R, 3R) -2,2-Dimethyl-3- (1-propenyl) cyclopropanecarboxylate (2,3,5,6-tetrafluoro-4-methylphenyl) methyl Examples except for using [2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl] methyl (1R, 3R) -2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate In the same manner as in Example 3, a net-shaped molded product having a strand diameter of 1 mm and a mesh interval of 5 mm square was obtained.

Example 5 The molded body samples obtained in Examples 1 and 3 were subjected to an open system at 25 ° C.
Saved in the room set in 10 days, 30 days, 60 days,
After 90 days, 135 days and 180 days, the plants are hung in the center of a chamber having a volume of 0.34 m ³ , and ten Drosophila are released into the sealed chamber. One day later, the life and death of Drosophila melanogaster is observed to determine the mortality (%). As a result, both the samples obtained in Examples 1 and 3 achieve 100% mortality for all the samples after storage for 10 to 180 days.

Example 6 A sample of the molded article obtained in Example 3 (containing 1 g of the present compound)
By installing in a septic tank (2 m ³ ), it is possible to control Drosophila melanogaster and Oleum fleas in the septic tank.

[0022]

EFFECT OF THE INVENTION Since the pesticidal agent for purifying a septic tank and the insecticide for controlling flies of the present invention are effective for a long period of time,
It is extremely effective for controlling pests and flies in septic tanks.

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Claims (7)

[Claims] 1. A compound represented by the general formula (1) as an active ingredient: (In the formula, R represents a methyl group or a methoxymethyl group.) A pest control agent for a septic tank comprising an ester compound represented by the following formula: 2. The insect pest control agent for a septic tank according to claim 1, wherein the organic polymer compound is a thermoplastic resin or a thermoplastic rubber. 3. The pest control agent for a septic tank according to claim 1, wherein the organic high molecular compound is a polyolefin polymer. 4. The general formula (1) as an active ingredient (In the formula, R represents a methyl group or a methoxymethyl group.) A flies control agent comprising an ester compound represented by the following formula: embedded image 5. The pest control agent for a septic tank according to claim 4, wherein the organic polymer compound is a thermoplastic resin. 6. The pest control agent for a septic tank according to claim 4, wherein the organic polymer compound is a polyolefin polymer. 7. The general formula (1) as an active ingredient (Wherein, R represents a methyl group or a methoxymethyl group). An ester compound represented by the formula (1) is applied with a pest control agent held by an organic polymer compound to control pests in a septic tank. Method.