JP2924168B2 - Insecticidal and acaricidal compositions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to an insecticidal and acaricidal composition.

<Prior Art> Conventionally, it is described in Japanese Patent Application Laid-Open No. 60-248601 that a certain kind of mixed composition can be used as an insecticide and acaricide.

<Problems to be Solved by the Invention> However, conventionally known insecticidal and acaricidal compositions are not sufficient in lethal effect or insufficient in immediate effect, or those that can sufficiently satisfy various requirements. Did not.

<Means for solving the problem> In view of such circumstances, the present inventors have conducted intensive studies to develop a more excellent insecticidal, acaricidal composition,
formula 2-methyl-4-oxo-3- (2-propynyl) cyclopent-2-enyl chrysanthemate (hereinafter referred to as compound [I]) represented by the formula: And an acaricidal composition (hereinafter, referred to as the composition of the present invention) containing 2,2-dichlorovinyl dimethyl phosphate (hereinafter, referred to as compound [II]) represented by the formula (1) as an active ingredient.
However, they have found that they have very excellent properties in both lethal and rapid effects due to their synergistic action, and have led to the present invention.

The composition of the present invention is: 1. Excellent in both lethal effect and knockdown effect. 2. Degree of synergistic effect, synergistic effect of a mixture of a pyrethroid compound and an organic phosphorus compound, which is conventionally considered to have a synergistic effect. Much greater than the effect 3. It has an excellent effect on pests that are less susceptible to various insecticides and acaricides It has excellent properties such as showing efficacy.

The mixing ratio of the compound [I] and the compound [II] is usually
The weight ratio ranges from 95: 5 to 5:95, preferably from 90:10 to 10:90. More preferably, for the pests, the mixing ratio for obtaining a better immediate effect (knock-down activity) is in the range of 90:10 to 30:70, and the mixing ratio for obtaining a more excellent immediate effect is , 90:10 to 50:50. In addition, the mixing ratio for obtaining more excellent lethal activity against pests is 70:30 to 10:90. On the other hand, for harmful mites,
Mixing ratios exhibiting particularly good efficacy are in the range from 90:10 to 30:70.

Although the composition of the present invention is effective against various pests and harmful mites, it is particularly effective against sanitary pests, wood pests, clothing pests, food pests, indoor pests, and the like.

 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. Coleoptera pests Coccinellidae, Adzuki beetle, Aconitum,
Shiban beetles, Fly bark beetles, Blue-tailed beetle, etc. Reticulate pests German cockroaches, black cockroaches, brown cockroaches,
Hymenopteran pests such as brown cockroaches and cockroaches Ants, ants, etc. Hymenoptera pests, human fleas, etc. Lice pests, human lice, lice, etc.Hipopteran pests, etc. Dermatophagoides, acarids, house dust mites, etc. House dust mites, ticks such as ox tick, house dust mites etc.The composition of the present invention is usually mixed with a solid carrier, a liquid carrier, a gaseous carrier, a bait, or a substrate such as a mosquito coil or mat. Impregnated, and if necessary, added surfactants and other pharmaceutical auxiliaries, flowables such as oils, emulsions, wettable powders, suspensions in water, emulsions in water, granules, powders, aerosols,
Heat fumigants such as mosquito coils, electric mosquito coils and mats, self-fuel type smokers, chemical reaction type smokers, electric heat type smokers, etc., resin vaporizers, impregnated paper vaporizers It is used as a non-heated transpiration agent, fogging or other fogging agent, ULV agent, poison bait, etc.

These preparations usually contain 0.001 to 95% by weight of the total amount of compound [I] and compound [II] as active ingredients.

Examples of solid carriers used in the formulation include clays (kaolin clay, diatomaceous earth, synthetic hydrous silicon oxide,
Bentonite, fubasami clay, acid clay, etc.), talc, ceramics, other inorganic minerals (sericite, quartz, sulfur, activated carbon, calcium carbonate, hydrated silica, etc.),
Fine powders or granular materials such as chemical fertilizers (ammonium sulfate, phosphorous ammonium, ammonium nitrate, urea, salt ammonium, etc.) are listed.
For example, water, alcohols (methanol, ethanol, etc.), ketones (acetone, methyl ethyl ketone, cyclohexanone, etc.), aromatic hydrocarbons (benzene, toluene, xylene, ethylbenzene, methylnaphthalene, etc.), aliphatic hydrocarbons (hexane, hexane, etc.) Cyclohexane,
Kerosene, light oil, etc.), esters (ethyl acetate, butyl acetate), nitriles (acetonitrile, isobutyronitrile), 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. For example, chlorofluorocarbon gas, butane gas, LPG (liquefied petroleum gas), dimethyl ether, carbon dioxide gas and the like can be mentioned.

Examples of the surfactant include alkyl sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl aryl ethers and polyoxyethylenates thereof, polyethylene glycol ethers,
Examples include polyhydric alcohol esters and sugar alcohol derivatives.

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 and the like), and examples of the stabilizer include PAP (isopropyl acid phosphate), BHT (2,6-di-tert-butyl-4-methylphenol), and BHA (2-tert-butylphenol). -Butyl-
A mixture of 4-methoxyphenol and 3-tert-butyl-4-methoxyphenol), vegetable oil, mineral oil, surfactant, fatty acid or ester 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.

As a base material of the self-burning type smoke agent, for example, nitrate,
Combustion heating agents such as nitrite, guanidine salt, potassium chlorate, nitrocellulose, ethylcellulose, and wood flour; thermal decomposition stimulants such as alkali metal salts, alkaline earth metal salts, dichromates, and chromates; potassium nitrate Oxygen-supplying agents, flame retardants such as melamine and wheat starch, fillers such as diatomaceous earth, and binders such as synthetic paste.

Examples of the base material of the chemical reaction type smoke agent include exothermic agents such as sulfides, polysulfides, hydrosulfides, hydrated salts and calcium oxide of alkali metals, and catalyst agents such as carbonaceous materials, iron carbide and activated clay. And organic foaming agents such as azodicarbonamide, benzenesulfonylhydrazide, dinitrosopentamethylenetetramine, polystyrene and polyurethane, and fillers such as natural fiber fragments and synthetic fiber fragments.

Examples of the base material of the non-heated evaporant include a thermoplastic resin, filter paper, and Japanese paper. Examples of the bait bait include bait ingredients such as cereal flour, vegetable essential oil, sugar, and crystalline cellulose; antioxidants such as dibutylhydroxytoluene and nordihydroguaiaretic acid; preservatives such as dehydroacetic acid;
Examples include an ingestion inhibitor such as pepper powder, an attractive flavor such as a cheese flavor, and an onion flavor.

Formulations of flowables (suspension in water or emulsions in water) generally contain 1-75% of the compound in 0.5-15% of a dispersant, 0.1-1%.
~ 10% of suspending aids (e.g., protective colloids and compounds that impart thixotropic properties), 0-10% of suitable adjuvants (e.g., defoamers, rust inhibitors, stabilizers, spreading agents, It can be obtained by finely dispersing in water containing a penetration aid, an antifreezing agent, an antibacterial agent, an antifungal 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 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 1 to 10,000 with water.
Dilute to ppm and apply. Oils, aerosols, fumigants, fumigants, transpirants, aerosols, ULV agents, baits, etc. are applied as they are.

All of these application rates and application concentrations depend on the type of formulation,
It depends on conditions such as application time, application place, application method, type of pest and the like, and can be increased or decreased without being concerned with the above range.

<Examples> Hereinafter, 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.

Formulation Example 1 Mixture of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:70 or 10:90)
One 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. x and y are as follows.

Formulation Example 16 Mixture of compound [Ia] and compound [II] (mixing ratio by weight is 90:10, 70:30, 50:50, 30:70 or 10:90)
One part is mixed and dissolved in 59 parts of kerosene, filled into an aerosol container and a valve part is attached, and then 40 parts of a propellant (liquefied petroleum gas) is filled under pressure through the valve part 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. x and y are as follows.

Formulation Example 30 Mixture of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:70 or 10:90)
1 part, emulsifier [4: 1 mixture of Reodol MO-60 (Kao Corporation registered trademark) and Reodol TW-0120 (Kao Corporation registered trademark) or Reodol SP-L10 (Kao Corporation registered trademark)] 1 part and An aerosol container is filled with a mixture of 8 parts of kerosene and 50 parts of ion-exchanged water, and a valve is attached. Then, 40 parts of a propellant (liquefied petroleum gas) is filled under pressure through the valve to form an aqueous aerosol. Get.

Formulation Examples 31 to 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 40
Aqueous aerosol is obtained in the same manner as in Preparation Example 30 using the above-mentioned parts. x and y are as follows.

Formulation Examples 42 to 43 Mixtures of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:70 or 10:90)
An x part, 7 parts of an emulsifier [Newcalgen 1015-H (Takemoto Oil & Fats)] and y part of xylene are well mixed and dissolved to obtain an emulsion. x and y are as follows.

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

Formulation Example 46 Mixture of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:70 or 10:90) 1
0 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 are added to a mixture, and the mixture is stirred and mixed with a mixer to obtain a wettable powder.

Formulation Example 47 Mixture of compound [Ia] and compound [II] (mixing ratio by weight: 90:10, 70:30, 50:50, 30:70 or 10:90) 1
0 parts and 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 xanthan 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 emulsion in water.

Formulation Examples 48-49 Mixtures of compound [Ia] and compound [II] (mixing ratio is 90:10, 70:30, 50:50, 30:70 or 10:90 by weight)
The x part and the xylene y part are thoroughly mixed and dissolved to obtain a ULV preparation. x and y are as follows.

Next, test examples will be described. In the following examples, the composition used for comparison was (RS) -2-methyl-4-oxo-3-
(2-propenyl) cyclopent-2-enyl (1RS)
-Cis, trans-chrysanthemate (arrestrin: hereinafter referred to as compound [A]) and 0,0-dimethyl 0-
It is a mixture with [3-methyl-4- (methylthio) phenyl] phosphorothioate (fenthion; hereinafter, referred to as compound [B]) and described in JP-A-60-248601.

Test Example 1 The following tests were carried out using the oil preparations obtained in Formulation Examples 1 to 15, the same prescription oil preparation of each compound alone, and the same prescription oil preparation of a comparative control composition.

10 cockroach adults (5 males and 5 females) were released in a 9 cm diameter polyethylene cup with a thin coating of petrolatum on the wall, covered with 16 mesh nylon ghosts,
It was set on the bottom of a glass cylinder 10 cm in height and 37 cm in height.
0.6 ml of each of the above oils at each concentration with a spray gun.
Spray directly from the top of the cylinder at atmospheric pressure, 2.5
The number of knockdown insects after a lapse of minutes was investigated. From the results at each concentration, the KC ₅₀ value (5
0% knockdown concentration) (3 replicates each). Table 2 shows the results.

Test Example 2 The following tests were carried out using the aqueous aerosols obtained in Formulation Examples 30 to 41, the same formulated aqueous aerosol of each compound alone, and the same formulated aqueous aerosol of the comparative control composition.

Aerosol test using a 183 cm cubic (6.1 m ³ ) Pete Grady chamber [Soap and Chemicals Specialties Blue Book (1965)
According to the method described in above), 100 mg of adult house flies per chamber were sprayed with 700 mg of aqueous aerosol,
After 0 minutes, the test insects were collected and one day later, the survival was examined. ₅₀ value LC of each composition in each mixing ratio from the mortality at each concentration (50% lethal concentration) was calculated (each repeated twice).

 Table 3 shows the results.

Test Example 3 10% emulsion obtained by Formulation Example 44 and 10% emulsion of the same formulation of each compound alone, and the same formulation of comparative control composition
The following tests were performed using a 10% emulsion.

Dilute each of the above emulsions to a predetermined concentration step, 6 cm × 12 c
The filter paper was uniformly treated with 0.36 ml each of the filter paper, and the air-dried back paper piece was folded in two, and both ends were glued to form a bag. Put 20 Dermatoph agoides farinae and feed into the bag, clip the top of the bag, and heat to 25
The sample was left under the conditions of ° C and a humidity of 65% RH, and the life and death one day later were examined. From the mortality at each dose, the LD ₅₀ value (50% lethal dose) for each composition at each mixing ratio was determined (2 replicates each).

 Table 4 shows the results.

Test Example 4 The following tests were carried out using the oil-based aerosols obtained in Formulation Examples 16 to 29, the same formulated oil-based aerosol of each compound alone, and the same formulated oil-based aerosol of a comparative control composition.

According to the aerosol test method using a 183 cm cubic (6.1 m ³ ) peat grady chamber, the number of knockdown insects was counted 5 minutes after spraying 700 mg of oily aerosol against 100 pyrethroid-insensitive housefly adults per chamber. investigated. From the results at each concentration, the KC ₅₀ value (50% knockdown concentration) after 5 minutes for each composition at each mixing ratio was determined (each 2 replicates). The results are shown in Table 5.

<Effects of the Invention> The insecticidal and acaricidal composition of the present invention is effective against various pests and harmful mites, including dipteran pests, lepidopteran pests, house dust mites, and insecticide and killing. It can be used for various uses as a tick agent.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01N 53/00 A01N 57/12 WPI (DIALOG)

Claims (5)

(57) [Claims] 1. An insecticidal composition comprising 2-methyl-4-oxo-3- (2-propynyl) cyclopent-2-enyl chrysanthemate and 2,2-dichlorovinyl dimethyl phosphate as active ingredients. , Acaricidal composition. 2. A mixture of 2-methyl-4-oxo-3- (2-propynyl) cyclopent-2-enyl chrysanthemate and 2,2-dichlorovinyl dimethyl phosphate in a weight ratio of 90:10 to 10:90. The insecticidal and acaricidal composition according to claim 1, wherein the composition is contained in a proportion. 3. An aerosol containing the insecticidal and acaricidal composition according to claim 1 or 2. 4. An oil agent comprising the insecticidal or acaricidal composition according to claim (1) or (2). 5. An emulsion comprising the insecticidal or acaricidal composition according to claim 1 or 2.