JPH04182407A - Insecticidal and miticidal composition - Google Patents

Abstract

PURPOSE:To produce the subject composition having excellent lethal effect, fast-action, etc., by using 2-methyl-4-oxo-3-(2-propynyl)cyclopent-2-enyl chrysanthemate and 2,2-dichlorovinyl dimethyl phosphate as active components. CONSTITUTION:The objective composition contains the compound of formula I and the compound of formula II at a weight ratio of 90:10 to 50:50 and exhibits fast action, etc., or the objective composition contains the above components at a weight ratio of 90:10 to 30:70 and exhibits especially high activity against noxious mites. The composition is effective against various noxious insects and mites such as clothes moth, house mosquito, house fly, rice weevil, German cockroach, ant, human flea, Reticulitermes and mite. It is used in various forms by mixing with various carriers or baits or impregnating in a substrate such as mosquito incense or mat.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to insecticidal and acaricidal compositions.

<Prior art> Conventionally, it has been reported that certain mixed compositions can be used as insecticides and acaricides, for example, in JP-A No. 60-248601.
It is stated in the No.

<Problems to be solved by the invention> However, conventionally known insecticidal and acaricidal compositions do not have sufficient lethal efficacy or fast-acting properties, and do not fully satisfy various requirements. There wasn't.

<Means for solving the problem> In view of this situation, the present inventors have developed a better insecticide,
As a result of extensive research to develop an acaricidal composition, we found that 2-methyl-4-oxo-3-(2-propynyl)cyclopent-2-enyl chrysanthemate (
Hereinafter, it will be referred to as compound CI). ) and 2,2-dichlorovinyl dimethyl phosphate (hereinafter referred to as compound (II)) represented by the formula as active ingredients (hereinafter referred to as the composition of the present invention). Due to their synergistic action, they discovered that they have very excellent properties in terms of both lethal efficacy and rapid action, leading to the present invention. - The composition of the present invention has the following characteristics: 1. It has excellent lethal efficacy and knockdown efficacy. 2. The degree of synergistic effect is the same as that of a mixture of a pyrethroid compound and an organophosphorus compound, which are conventionally thought to have a synergistic effect. It is far more effective than its effectiveness: It is highly effective even against pests that are low in sensitivity to various insecticides and acaricides. It has excellent properties such as showing .

The mixing ratio of compound CI) and compound (I[) is usually
Weight ratio: 95:5 to 5:95, preferably 90.1
The range is 0 to 10:90. More preferably, the mixing ratio for obtaining better immediate effect (knockdown activity) against pests is in the range of 90:10 to 30.70; is 90
:10-50 :50 range. In addition, to obtain superior lethal activity against pests, the mixing ratio is 70%
:30 to 10:90. On the other hand, against harmful mites,
The mixing ratio that exhibits particularly excellent efficacy is 90:10 to 3.
The range is between 0 and 0.

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

Specific examples of insects to be controlled are shown below.

Lepidopteran pests such as the burr moth, carp moth, and snail moth Diptera pests Culex, Anopheles mosquitoes, Aedes mosquitoes, houseflies, fruit flies, butterflies, etc. Coleopteran pests Black weevils, adzuki bean weevils, white beetles, white beetles, hiraku beetles Pests of the order Hymenoptera, such as the German cockroach, black cockroach, American cockroach, brown cockroach, and black cockroach, etc., the order Pests of the order Hymenoptera, ants, wasps, etc. Insects such as house dust mites, house dust mites, dust mites, dust mites, dust mites, house dust mites, etc., such as the Japanese termites and domestic termites, house dust mites, etc. The composition of the present invention is usually carried out in the form of a solid carrier, a liquid carrier, or a gaseous carrier. It can be mixed with carriers and baits, or impregnated into base materials such as mosquito coils and mats, and if necessary, surfactants and other formulation auxiliaries can be added to produce oils, emulsions, wettable powders, and suspensions in water. Flowable agents such as emulsions in water, granules, powders, aerosols, heating fumigants such as mosquito coils, electric mosquito mats, and no-mats,
Heating smoke agents such as self-combustion type smoke agents, chemical reaction type smoke agents, and electric heating type smoke agents, non-heating transpiration agents such as resin evaporation agents and impregnated paper evaporation agents, fogging agents such as fogging agents, ULV agents, It is used as a poison bait, etc.

These preparations usually contain the total amount of compound [■] and compound (If) as active ingredients in a weight ratio of 0.001 to 95.
%contains.

Solid carriers used in formulation include, for example, clays (kaolin clay, diatomaceous earth, synthetic hydrated silicon oxide, bentonite, fubasami clay, acid clay, etc.), talcs, ceramics, and other inorganic minerals (sericite, quartz,
Sulfur, activated carbon, calcium carbonate, hydrated silica, etc.), chemical fertilizers (ammonium sulfate, ammonium phosphorus, ammonium nitrate, urea, ammonium chloride, etc.), and other fine powders or granules.As liquid carriers, for example, water, alcohol, etc. (methanol, ethanol, etc.),
Ketones (acetone, methyl ethyl ketone, cyclohexanone, etc.), aromatic hydrocarbons (benzene, toluene,
xylene, ethylbenzene, methylnaphthalene, etc.), aliphatic hydrocarbons (hexane, cyclohexane, kerosene, light oil, etc.), esters (ethyl acetate, butyl acetate, etc.), nitriles (acetonitrile, isobutyronitrile),
Ethers (diisopropyl ether, dioxane, etc.)
, acid amides (N,N-dimethylformamide, N,N
-dimethylacetamide, etc.), halogenated hydrocarbons (
dichloromethane, trichloroethane, carbon tetrachloride, etc.),
Examples include dimethyl sulfoxide, vegetable oils such as soybean oil and cottonseed oil, and examples of gaseous carriers, ie, propellants, include chlorofluorocarbon gas, butane gas, LPG (liquefied petroleum gas), dimethyl ether, carbon dioxide gas, and the like.

Examples of surfactants include alkyl sulfates, alkyl sulfonates, alkylaryl sulfonates, alkylaryl ethers and their polyoxyethylenic products, polyethylene glycol ethers, polyhydric alcohol esters, sugar alcohol derivatives, etc. can give.

Examples of formulation auxiliaries such as fixing agents and dispersants include casein, gelatin, polysaccharides (starch powder, gum arabic, cellulose derivatives, alginic acid, etc.), lignin derivatives, bentonite, sugars, synthetic water-soluble polymers (polyvinyl alcohol, etc.) , polyvinylpyrrolidone, polyacrylic acids, etc.), and examples of stabilizers include PAP (
acidic isopropyl phosphate), BHT (2,6-tert-butyl-4-methylphenol), BHA
(mixture of 2-tert-butyl-4-methoxyphenol and 3-tert-butyl-4-methoxyphenol), vegetable oil, mineral oil, surfactant, fatty acid or its ester, and the like.

Examples of the base material for mosquito coils include mixtures of raw plant powders such as wood flour and lees powder and binders such as tab flour, starch, and gluten.

Examples of the base material for the electric mosquito repellent mat include fibrils of cotton linters or a mixture of cotton linters and bulbs solidified into a plate shape.

Examples of base materials for self-combusting smoke agents include nitrates, nitrites, guanidine salts, potassium chlorate, nitrocellulose, ethylcellulose, combustion exothermic agents such as wood flour, alkali metal salts, alkaline earth metal salts, and dichromium. Examples include thermal decomposition stimulants such as acid salts and chromates, oxygen supply agents such as potassium nitrate, combustion support agents such as melamine and wheat starch, fillers such as diatomaceous earth, and binders such as synthetic glues.

The base materials for chemically reactive smoke agents include, for example, exothermic agents such as alkali metal sulfides, polysulfides, hydrosulfides, hydrated salts, and calcium oxide, and catalyst agents such as carbonaceous substances, iron carbide, and activated clay. , organic blowing agents such as azodicarbonamide, benzenesulfonyl hydrazide, dinitrosopentamethylenetetramine, polystyrene, polyurethane, natural fiber pieces,
Examples include fillers such as synthetic fiber pieces.

Examples of the base material of the non-heating transpiration agent include thermoplastic resin,
Examples include filter paper and Japanese paper. Poisonous bait base materials include bait components such as grain grains, plant essential oils, sugar, and crystalline cellulose;
Antioxidants such as dibutylhydroxytoluene and nordihydroguaiaretic acid, preservatives such as dehydroacetic acid, agents to prevent accidental ingestion such as capsicum powder, and attractive flavorings such as cheese flavoring and onion flavoring.

The formulation of flowables (suspensions or emulsions in water) generally consists of 1-75% compound, 0.5-15% dispersing agent, 0.1-10% suspending aid (e.g. colloidal or thixotropic compounds), 0-10% of suitable auxiliaries (e.g. antifoaming agents, rust inhibitors, stabilizers,
It is obtained by finely dispersing it in water containing a spreading agent, penetration aid, antifreeze agent, antibacterial agent, antifungal agent, etc.). It is also possible to use an oil in which the compound hardly dissolves in place of water to form a suspension in oil. Examples of protective colloids used include geranin, casein, gums, cellulose ether, and polyvinyl alcohol. Examples of compounds that impart thixotropy include bentonite, aluminum magnesium silicate, xanthan gum, and polyacrylic acid.

The preparation thus obtained can be used as is or diluted with water or the like. It can also be used simultaneously with or without mixing with other insecticides, acaricides, and fungicides.

In addition, emulsions, hydrating agents, flowable agents, etc. have a concentration of 1 to 10.0 in water.
Apply diluted to 0.00 ppm, and apply as is for oils, aerosols, fumigants, smoke agents, transpiration agents, fog agents, ULV agents, poison baits, etc.

These application amounts and concentrations vary depending on the type of formulation, application time, application location, application method, type of pest, etc., and may be increased or decreased without regard to the above range. can.

<Examples> The present invention will be explained in more detail below using formulation examples and test examples, but the present invention is not limited only to these examples.

In addition, in the following formulation examples and test examples, the compound is
Indicated by compound symbol in the table. In addition, parts in the formulation examples indicate parts by weight.

Formulation Example 1 Mixture of compound (I-a) and compound (II) (mixing ratio by weight is 90:10.70:30.50:50.30
・70 or 10:90) Mix and dissolve 1 part in 99 parts of kerosene to obtain an oil solution.

Formulation Examples 2 to 15 An oil solution is obtained in the same manner as in Formulation Example 1 from X part of the mixture of compound (1-a) and compound (II) and y part of kerosene.

X and y are as follows.

Production Example 16 Mixture of compound CI-a) and compound (I[) (mixing ratio by weight is 90:10.70:30.50:50.30)
Mix and dissolve 1 part of kerosene (near 0 or 10:90) in 59 parts of kerosene, fill it into an aerosol container, attach the valve part, and then inject 4 parts of the propellant (liquefied petroleum gas) through the valve part.
0 part is filled under pressure to obtain an oil-based aerosol.

Formulation Examples 17 to 29 Oil-based aerosols are obtained in the same manner as Formulation Example 16 using X part of the mixture of compound CI-a) and compound (II), y part of kerosene, and 40 parts of propellant. X and y are as follows.

Formulation Example 30 Mixture of compound CI-a) and compound (I[) (mixing ratio by weight is 90:10.70:30.50:50.30)
0 or 10:90) 1 part emulsifier [Rheodol MO-60 (registered trademark of Kao Corporation) and Rheodol TW
-0120 (registered trademark of Kao Corporation) or a mixture of 1 part of Rheodol 5P-LIO (registered trademark of Kao Corporation) and 8 parts of kerosene, and 50 parts of ion-exchanged water are placed in an aerosol container. After filling and attaching the valve part, 40 parts of propellant (liquefied petroleum gas) is pressurized and filled through the valve part to obtain an aqueous aerosol.

Formulation Examples 3I to 41 Aqueous formulations were prepared in the same manner as in Formulation Example 30 using part X of the mixture of compound CI-a) and compound CI[), 1 part emulsifier, y part kerosene, 50 parts ion-exchanged water, and 40 parts propellant. Get an aerosol. X and y are as follows.

Formulation Examples 42-43 Mixture of compound CI-a) and compound (II) (mixing ratio by weight is 90+10.70:30.50:50.30
An emulsion is obtained by thoroughly mixing and dissolving x parts (0 or 10:90), 7 parts of an emulsifier [Nucalgen+015-H (Takemoto Oils and Fats Registered Trademark)], and 12 parts of xy. X and y are as follows.

Formulation Examples 44-45 Mixture of compound CI-a) and compound (I[) (mixing ratio by weight is 90:10.70:30.50:50.30)
0 or 10:90) x parts, emulsifier (Tsurpol 5
M-200 (Toho Chemical registered trademark)) 10 parts and 1 xy
The second part is thoroughly mixed and dissolved to obtain an emulsion. X and y are as follows.

Formulation Example 46 Mixture of compound (I-a) and compound (II) (mixing ratio by weight is 90:10.70:30.50:50.30
・Add 10 parts of sodium lauryl sulfate, 2 parts of calcium lignin sulfonate, 20 parts of synthetic hydrous silicon oxide fine powder, and 64 parts of diatomaceous earth, and stir and mix with a mixer to hydrate. Formulation example 47 to obtain a compound (I-a) and compound (II) (mixing ratio by weight is 90:10.70:30.50:50.30)
The mixture was added to 40 parts of an aqueous solution containing 10 parts of 0 or 10:90) and 6 parts of polyvinyl alcohol, and stirred with a mixer to obtain a dispersant. To this was added 40 parts of an aqueous solution containing 0.05 part of xanthan gum and 0.1 part of aluminum magnesium silicate, and further 10 parts of propylene glycol.
1 part and gently stir and mix to obtain an emulsion in water.

Formulation Examples 48-49 Mixtures of compound CI-a] and compound [II) (mixing ratio by weight: 90:10, 70:30, 50:50)
, 30 nia 0 or 10:90) x part and xi 12 fu part are thoroughly mixed and dissolved to obtain a ULV preparation. X and y are as follows.

Next, a test example will be shown. In the following examples, the composition used for comparison was (R3)-2-methyl-4-oxo-3-
(2-propenyl)cyclopent-2-enyl (IR
3)-cis, trans-chrysanthemate (allethrin di or less, referred to as compound (A)) and 0.0-dimethyl 0-[3-methyl-4-(methylthio)phenyl]
Phosphorothioate (fenthion 2 or less, compound (B
).

) and is described in JP-A No. 60-248601.

Test Example 1 The following test was conducted using the oil solution obtained in Formulation Example 1-15, the same formulation oil formulation of each compound alone, and the same formulation oil formulation of the comparative control composition.

10 adult German cockroaches (5 each male and female) in a 9-diameter polyethylene cup with a thin layer of Vaseline on the wall.
Released, covered with 16 mesh nylon gose,
It was installed at the bottom of a glass cylinder with an inner diameter of 10 ann and a height of 37 ann. 0.6 ml of each of the above oils at each concentration was directly sprayed from the top of the cylinder at a pressure of 0.6 atmospheres using a spray gun, and the number of knockdown insects was investigated after 2.5 minutes had elapsed. From the results at each concentration, the KC5° value (50% knockdown concentration) after 2.5 minutes was determined for each composition at each mixing ratio (three replicates each). The results are shown in Table 2.

Table 2 *1 Compound CI-a) was set as 100.

*2 Sun and Johnson (+96
0) calculation formula (Y, -P, Sun and E, R.

Johnsonj, Econ, Entmol, 53,
887 (1960)).

Test Example 2 The following test was conducted using the aqueous aerosols obtained in Formulation Examples 30 to 41, the same formulation aqueous aerosols of each compound alone, and the same formulation aqueous aerosols of comparative control compositions.

1830 cubic (6,1rr?) Beat Grady
Aerosol test method using a chamber [Soap and Chemicals Specialties, Blue Book (
1965), 100 adult houseflies were sprayed with 700 ml of aqueous aerosol per chamber, and 20 minutes later, the test insects were collected and their survival or death was examined one day later. LCs for each composition at each mixing ratio from the mortality rate at each concentration. The value (50% lethal concentration) was determined (two replicates each).

The results are shown in Table 3.

Table 3 *1 Compound CI-a) was set as 100.

*2 Sun and Johnson (196
According to the calculation formula of 0).

Test Example 3 The following test was conducted using the 10% emulsion obtained in Formulation Example 44, a 10% emulsion of the same formulation containing each compound alone, and a 10% emulsion of the same formulation of a comparative control composition.

Each of the above emulsions was diluted to a predetermined concentration level, and 6an
Filter paper from 12 countries was treated uniformly in 0.36 ml portions, and after air-drying, the paper pieces were folded in half and both ends were glued to form a bag shape. Dermatophag in the bag
oides farinae) and feed were put in the bag, the top of the bag was fastened with a clip, and the bag was left under conditions of a temperature of 25° C. and a humidity of 65% RH, and the survival and death of the bag was examined one day later.

LD for each composition at each mixing ratio from the mortality rate at each drug dose
%. The values (50% lethal dose) were determined (each replicated twice) and the results are shown in Table 4.

Table 4 *1 Compound (1-a) was set as 100.

*2 5Linand Johnson (1960
) according to the calculation formula.

Test Example 4 The following tests were conducted using the oily aerosols obtained in Formulation Examples 16 to 29, the same formulation oily aerosols of each compound alone, and the same formulation oily aerosols of comparative control compositions.

183an cubic (6, Irr?) Beat Grady
-According to the aerosol test method using a chamber, 700 μl of oil-based aerosol was sprayed on 100 pyrethroid-insensitive adult houseflies per chamber, and the number of knockdown insects was investigated 5 minutes later.

KC after 5 minutes for each composition at each mixing ratio from the results at each concentration. The values (50% knockdown concentration) were determined (each replicated twice) and the results are shown in Table 5.

Table 5 *1 Compound (1-a) was set as 100.

*2 Sun and Johnson (196
According to the calculation formula of 0).

<Effects of the Invention> The insecticidal and acaricidal composition of the present invention is effective against various insect pests and mites including Diptera pests, Reticuloptera pests, and indoor dust mites; It can be used for various purposes as an acaricide.

Claims (1)

[Claims] An insecticidal and acaricidal composition containing 2-methyl-4-oxo-3-(2-propynyl)cyclopent-2-enylchrysanthemate and 2,2-dichlorovinyldimethylphosphate as active ingredients. .