JP2985389B2 - Insecticidal and acaricidal compositions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel insecticidal and acaricidal composition.

[0002]

2. Description of the Related Art Conventionally known insecticidal and acaricidal compositions have insufficient lethal effect, insufficient fast-acting effect, or insufficient residual effect. Various requirements could not always be satisfied.

[0003]

Means for Solving the Problems The present inventors have conducted intensive studies on countless combinations among a large number of pyrethroid compounds, and as a result, formula 1

Embedded image 2,3,5,6-tetrafluorobenzyl represented by
3- (2,2-dichlorovinyl) -2,2-dimethyl-
Cyclopropane carboxylate (hereinafter, compound [I]
It is written. ) And Formula 2

Embedded image 2- (4-ethoxyphenyl) -2-methylpropyl 3-phenoxybenzyl ether (hereinafter, referred to as
This is referred to as compound [II]. ) And an insecticidal and acaricidal composition (hereinafter, referred to as the composition of the present invention) having an active ingredient as the active ingredient.
In addition, they have found that they have extremely excellent properties in terms of residual effect, and have reached the present invention. Compound [I] and compound [I
Is usually 95: 5 to 5: 9 by weight.
5, preferably in the range of 50:50 to 10:90.

[0004] The composition of the present invention is effective against various pests and harmful mites, but is particularly effective against sanitary pests, wood pests, clothing pests, food pests, indoor pests and other unpleasant pests. Specific examples of insects to be controlled are shown below. Lepidopterous pests Iga, Kioga, Nosyme moth, etc.Diptera pests House mosquitoes, Anopheles, Musca domestica, Drosophila, Drosophila, etc. Reticulate pests, etc. Lepidopteran pests German cockroaches, black cockroaches, cockroaches, cockroach cockroaches, cockroach cockroaches, etc. House dust termites and other mites Dust mites, house dust mites, and house dust mites, ticks such as ox tick, house dust mites, etc.

[0005] The composition of the present invention is usually mixed with a solid carrier, liquid carrier, gaseous carrier, or bait, or impregnated in a substrate such as a mosquito coil or mat, and if necessary, a surfactant or other pharmaceutical agent. Heating oils, emulsions, wettable powders, suspensions and emulsions in water, granules, powders, aerosols, mosquito coils, electric mosquito mats and no mats Fumigants, non-heating fumigants such as self-burning type fumigants, chemical reaction type fumigants, perforated ceramic plate fumigants, etc., resin fumigants, impregnated paper fumigants, etc., fogging fogs etc. , ULV preparations, microcapsules, poison baits and the like. These preparations usually contain 0.001 to 95% by weight of the total amount of the compound [II] and the diphenyl ether derivative represented by the general formula [I] as active ingredients.

[0006] Examples of the solid carrier used in the formulation include clays (kaolin clay, diatomaceous earth, synthetic hydrous silicon oxide, bentonite, fusami clay, acid clay, etc.), talcs, ceramics, and other inorganic minerals (sericite). , Quartz, sulfur, activated carbon, calcium carbonate, hydrated silica, etc.) and fine powders or granules such as chemical fertilizers (ammonium sulfate, phosphorous ammonium, ammonium nitrate, urea, salt ammonium, etc.). Water, alcohols (methanol,
Ethanol, etc.), ketones (acetone, methyl ethyl ketone, etc.), aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, methyl naphthalene, etc.), aliphatic hydrocarbons (hexane, cyclohexane, kerosene, light oil, etc.), esters (Ethyl acetate, butyl acetate, etc.), nitriles (acetonitrile, isobutyronitrile, etc.), ethers (diisopropyl ether, dioxane, etc.),
Acid amides (N, N-dimethylformamide, N, N-
Dimethylacetamide, etc.), halogenated hydrocarbons (dichloromethane, trichloroethane, carbon tetrachloride, etc.), dimethyl sulfoxide, vegetable oils such as soybean oil and cottonseed oil, and the like. , LPG (liquefied petroleum gas),
Examples include dimethyl ether and carbon dioxide. Examples of the surfactant include alkyl sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl aryl ethers and polyoxyethylenates thereof, polyethylene glycol ethers, polyhydric alcohol esters, sugar alcohol derivatives and the like. can give.
Examples of pharmaceutical auxiliaries such as fixatives and dispersants include casein, gelatin, polysaccharides (starch, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, bentonite, sugars, synthetic water-soluble polymers (polyvinyl alcohol). , Polyvinylpyrrolidone, polyacrylic acids, etc.), and as a stabilizer, for example, PAP
(Isopropyl oxyphosphate), BHT (2,6-di-te
rt-butyl-4-methylphenol), BHA (2-te
a mixture of rt-butyl-4-methoxyphenol and 3-tert-butyl-4-methoxyphenol), vegetable oils, mineral oils, surfactants, fatty acids or esters thereof, and the like. The base material of the mosquito coil includes, for example, a mixture of a raw plant powder such as wood flour and lees flour and a binder such as tub flour, starch and glutein. Examples of the base material of the electric mosquito collecting mat include those obtained by hardening fibrils of cotton linter or a mixture of cotton linter and pulp in a plate shape. Substrates of self-combustion type smoke materials include, for example, combustion heating agents such as nitrates, nitrites, guanidine salts, potassium chlorate, nitrocellulose, ethylcellulose, wood flour; alkali metals; alkaline earth metal salts; Thermal stimulants such as acid salts and chromates; oxygen supply agents such as potassium nitrate; flame retardants such as melamine and wheat starch; extenders such as diatomaceous earth; and binders such as synthetic pastes. As the base of the chemical reaction type smoke agent, for example, exothermic agents such as alkali metal sulfide, polysulfide, hydrosulfide, hydrated salt, calcium oxide, carbonaceous substances,
Examples include catalyst agents such as iron carbide and activated clay, organic blowing agents such as azodicarbonamide, benzenesulfonyl hydrazide, dinitrosopentamethylenetetramine, polystyrene and polyurethane, and fillers such as natural fiber pieces and synthetic fiber pieces. Examples of the base material of the non-heated evaporant include a thermoplastic resin, filter paper, and Japanese paper. Examples of bait baits include bait ingredients such as cereal flour, vegetable essential oils, sugar, and crystalline cellulose; antioxidants such as dibutylhydroxytoluene and nordihydroguaiaretic acid; preservatives such as dehydroacetic acid; and pepper powder. Inducing flavors such as food inhibitors, cheese flavors, onion flavors and the like. Formulations of flowables (suspended or emulsified in water) generally contain 1-75% of the compound in 0.5-15% dispersant, 0.1-10%
Suspension aids (e.g., protective colloids and compounds that impart thixotropic properties), 0-10% of suitable auxiliary aids (e.g., antifoaming agents, rust inhibitors, stabilizers, spreading agents, penetration aids) , An antifreezing agent, an antibacterial agent, an antifouling agent, etc.). It is also possible to use an oil in which the compound hardly dissolves in place of water and use it as a suspension in oil. As the protective colloid, for example, gelanin, casein, gums, cellulose ether, polyvinyl alcohol and the like are used. Examples of the compound imparting thixotropy include bentonite, aluminum magnesium silicate, xanthan gum, polyacrylic acid and the like.

The preparation thus obtained is used as it is or after being diluted with water or the like. It can also be used with or without mixing with other insecticides, acaricides, and fungicides. Emulsions, wettable powders, flowables, etc. are diluted to 1 to 10,000 ppm with water and applied, and oils, aerosols, fumigants, fumigants, transpirants, aerosols, microsprays (ULV agents), For poison bait, etc., apply as it is.
These application rates and application concentrations vary depending on the type of preparation, application time, application place, application method, type of pest, etc., and may be increased or decreased without being affected by the above range. it can. In the present invention, the compound [I] has stereoisomers, and the present invention includes any stereoisomers having insecticidal and acaricidal activity and mixtures thereof.

[0008]

EXAMPLES The present invention will be described in more detail with reference to formulation examples and test examples, but the present invention is not limited to these examples. In the following Formulation Examples and Test Examples, compounds are indicated by compound symbols in Table 1. In addition, parts in the formulation examples indicate parts by weight.

[Table 1]

Formulation Example 1 A mixture of compound [Ia] and compound [II] (mixing ratio by weight is 90:10, 70:30, 50:50, 30:
70 or 10:90) 1 part is mixed and dissolved in 99 parts of kerosene to obtain an oil agent. Formulation Examples 2 to 15 An oil agent is obtained in the same manner as in Formulation Example 1 from x part of a mixture of compound [Ia] and compound [II] and y part of kerosene. Table 2 shows x and y
Street.

[Table 2] Production Example 16 Mixture of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:
70 or 10:90) 1 part was mixed and dissolved in 59 parts of kerosene, filled in an aerosol container, and a valve portion was attached. Then, a propellant (liquefied petroleum gas) 40
The part is pressurized to obtain an oily aerosol. Formulation Examples 17 to 29 An oily aerosol is obtained in the same manner as in Formulation Example 16 using x part of a mixture of compound [Ia] and compound [II], y part of kerosene, and 40 parts of propellant. Table 3 shows x and y.

[Table 3] Formulation Example 30 Mixture of compound [Ia] and compound [II] (mixing ratio by weight is 90:10, 70:30, 50:50, 30:
70 or 10:90) 1 part, emulsifier [Reodol MO
-60 (Registered trademark of Kao Corporation) and Leodol TW-01
20 (registered trademark of Kao Corporation) or a mixture of 1 part of Rheodol SP @ L10 (registered trademark of Kao Corporation) and 8 parts of kerosene and 50 parts of ion-exchanged water.
Part is filled in an aerosol container, and after attaching a valve part, a propellant (liquefied petroleum gas) 4 is passed through the valve part.
0 parts are pressurized to obtain an aqueous aerosol. Formulation Examples 31-41 x part of a mixture of compound [Ia] and compound [II], 1 part of emulsifier, y part of kerosene, 50 parts of ion-exchanged water and propellant 4
An aqueous aerosol is obtained in the same manner as in Preparation Example 30 using 0 parts. Table 4 shows x and y.

[Table 4]

Formulation Examples 42 to 43 Mixtures of compound [Ia] and compound [II] (mixing ratio by weight is 90:10, 70:30, 50:50, 30:
70 or 10:90) x part, emulsifier [Newcalgen
1015-H (Takemoto Yushi-registered trademark)] 7 parts and xylene y
The parts are well mixed and dissolved to obtain an emulsion. Table 5 shows x and y.

[Table 5] Formulation Examples 44 to 45 Mixtures of compound [Ia] and compound [II] (mixing ratio is 90:10, 70:30, 50:50, 30:
70 or 10:90) x part, emulsifier (Solpol SM
-200 (Toho Kagaku)) 10 parts and xylene y part are well mixed and dissolved to obtain an emulsion. Table 6 shows x and y.

[Table 6] Formulation Example 46 A mixture of compound [Ia] and compound [II] (the mixing ratio is 90:10, 70:30, 50:50, 30:
70 or 10:90) 10 parts, 4 parts of sodium lauryl sulfate, 2 parts of calcium ligninsulfonate, 20 parts of synthetic hydrous silicon oxide fine powder and 64 parts of diatomaceous earth were added to the mixture, and the mixture was stirred and mixed with a mixer to obtain a wettable powder. Get. Formulation Example 47 A mixture of compound [Ia] and compound [II] (the mixing ratio is 90:10, 70:30, 50:50, 30:
70 or 10:90) 10 parts were added to 40 parts of an aqueous solution containing 6 parts of polyvinyl alcohol, and stirred with a mixer to obtain a dispersant. 40 parts of an aqueous solution containing 0.05 parts of xantham gum and 0.1 parts of aluminum magnesium silicate are added thereto, and 10 parts of propylene glycol are further added, followed by gentle stirring and mixing to obtain an emulsifier in water. Formulation Examples 48 to 49 Mixtures of compound [Ia] and compound [II] (mixing ratio by weight is 90:10, 70:30, 50:50, 30:
70 or 10:90) The x part and the xylene y part are thoroughly mixed and dissolved to obtain a ULV preparation. Table 7 shows x and y.

[Table 7]

Next, test examples will be described. Test Example A 1.52 ml acetone solution of a given concentration of the test reagent was 10.3 cm in diameter
Was uniformly treated so that the amount of the active ingredient was 10 mg / m ² . After air drying in acetone, German cockroaches ( Blatte
lla germanica ) 10 animals (five males and five females) were released on an aluminum dish, and the number of knockdown insects was counted at predetermined time intervals for the next 120 minutes, and the KT50 value (from 50% knockdown) was determined from the results obtained. Required time) was calculated (2 repetitions). Table 8 shows the results.

[Table 8] In the above test, all the test insects were transferred to a collection cup 120 minutes after the release of the insects, water and food were given, and one week later, the survival and death were observed, and the mortality was determined. Further, the aluminum plate prepared by the same method was left for 2 weeks under the condition of an air temperature of 25 ° C. and a temperature of 60%, and the same test was performed to determine the mortality (two repetitions).
Table 9 shows the results.

[Table 9]

[0012]

Industrial Applicability The insecticidal and acaricidal composition of the present invention is effective against various insect pests and harmful mites, including dipteran pests, lepidopteran pests and house dust mites. It can be used for various uses as a tick agent.

Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01N 53/00 A01N 31/14

Claims (1)

(57) [Claims] (1) 2,3,5,6-tetrafluorobenzyl 3- (2,2-dichlorovinyl) -2,2-dimethyl-cyclopropanecarboxylate and 2- (4-ethoxyphenyl) -2- An insecticidal or acaricidal composition comprising methylpropyl 3-phenoxybenzyl ether as an active ingredient.