MX2010011913A - Harmful organisim-controlling composition and control method of harmful organisms. - Google Patents

Abstract

To provide a pest control composition having excellent control effect on pests. Solution: A pest control composition which comprises as effective ingredients an ester compound represented by the formula (I), and an ester compound represented by the formula (II).

Description

COMPOSITION OF CONTROL OF HARMFUL ORGANISMS AND CONTROL METHOD OF HARMFUL ORGANISMS Field of the Invention The present invention relates to a pest control composition and a method of pest control.

Background of the Invention An ester compound represented by the formula (I): it is known to be an effective ingredient of a pest control preparation (for example, see JP 57-123146 A and CN 101306997 A).

On the other hand, an ester compound represented by the formula (II): It is also known to be an effective ingredient in a pest control preparation (for example, see Ref. 214672 JP 2001-11022 A).

However, in some cases, a pest control preparation with a control effect superior to such known preparation is required according to the particular application and the pests to be controlled.

Brief Description of the Invention Trouble . solve by means of the invention An object of the present invention is to provide a pest control composition and a pest control method with an excellent control effect on pests.

Means to solve problems As a result of the intense study of the present inventor, it was found that the combined use of the ester compound represented by the formula (I) and the ester compound represented by the formula (II) exhibits an excellent control effect on pests. In this way, the present invention was completed.

That is, the present invention provides: (1) a pest control composition comprising as effective ingredients a combination of an ester compound represented by the formula (I): (in the following, mentioned as the present ester compound A) and an ester compound represented by the formula (II): (hereinafter, referred to as the present ester compound B); (2) the pest control composition according to item (1) above (hereinafter, referred to as the present control composition), wherein the weight ratio of the present ester compound A to the present ester compound B it is within the range of 50: 1 to 1:50; (3) a method of controlling pests comprising the application of an effective amount of a combination of the present ester compound A and the present ester compound B to pests or areas in which the pests live; Y (4) use of a combination of the present ester compound A and the present ester compound B to control pests.

Effects of the invention The present control composition and the control method exhibit an excellent control effect on pests.

Detailed description of the invention The present control composition is characterized in that it contains both the present ester compound A and the present ester compound B.

The present ester compound A can be produced, for example, by means of a process described in JP 57-123146 A.

The present ester compound B can be produced, for example, by means of a process described in JP 2001-11022 A.

Each present compound of ester A and the present compound of ester B has isomers based on two asymmetric carbon atoms in its cyclopropane ring. In the present invention, the ester compound containing the active isomers in any proportion can be used.

Examples of the pests against which the present control composition exhibits a control effect include harmful arthropods such as insect pests and mite pests. His specific examples are the following.

Insect pests Lepidoptera: Pyroidal moth (Pyralidae) such as rice stem borer (Chilo suppressalis), rice leaf roller (Cnaphalocrocis medinalis), Indian food moth (Plodia interpunctella), owl chick moths (Noctuidae) such as night butterfly larva (Spodoptera litura), worm of beet moth (Spodoptera exigua), moth worm (Pseudaletia separata), and cabbage moth worm (Mamestra brassicae); white butterflies (Pieridae) such as common white (Pieris rapae); Tortis moths (Tortricidae) such as Adoxophyes spp., fruit moth (Carposinidae); lyonetiid moths (Lyonetiidae); grass weed moth (Lymantriidae); Plusiae; Agrotis spp. such as moth larva (Agrotis segetum) and larva of bluck moth (Agrotis ipsilon); Helicoverpa spp :; Heliothis spp .; diamond back moths (Plutella xylostella); common vertical rapid flyer (Pamara guttata); clothing moths that manufacture caps (Tinea translucens) and network-forming clothes moth (Tineola bisselliella).

Insect pests Diptera: Mosquitoes (Calcidiae) such as the common mosquito (Culex pipiens pallens), Culex tritaeniorhynchus and domestic mosquito from the South (Culex quinqu faseiatus); Aedes spp. such as the yellow fever mosquito [Aedes aegypti) and Asian tiger mosquito (Aedes albopictus); Anopheles spp. such as Anopheles sinensis; mosquitoes (Chironomidae); House flies (Muscidae) such as the housefly. { Musca domestica) and Musca bezzi, the false stable fly (Muscina stabulans), lower housefly. { Fannia canicularis); blue fly (Calliphoridae); flesh flies (Sarcophagidae); anthomyiid flies (Anthomyiidae) such as corn seed worm (Delia platura) and onion worm. { Delia antiqua); black borer flies (Sepidae); fruit flies (Tephritidae); leaf miner flies (Agromyzidae); small fruit flies (Drosophilidae) such as common fruit flies (Drosophila melanogaster); moth flies (Psychodidae); phorid flies (Phoridae) such as the fly with hump in the spied. { Megaselia spiracularis); black flies (Simuliidae); horse fly (Tabanidae); stable flies. { Stomoxyidae); and stinging mosquito (Ceratopogonidae).

Insect pests Dictyoptera: Cockroaches (Blattariae) such as the German cockroach. { Germanic Blattella), smoked coffee cockroach. { Periplaneta fuliginosa), | American cockroach. { Periplaneta americana), brown cockroach. { Periplaneta brunnea) and eastern cockroach (Blatta orientalis).

Hymenoptera insect pests: Ants (Formicidae); hornets (Vespidae); wasps bethylid (Bethylidae); and sawfly (Tenthredinidae) such as cabbage saw flies (Athalia rosae).

Insect pests Afanípteros: Dog flea (Ctenocephalides canis), cat flea (Ctenocephalides felis), and human flea (Pulex irritans).

Insect pests Anopluros: Human louse (Pediculus humanus), crab louse. { Phthirus pubis), head louse (Pediculus humans capitis), and human body louse (Pediculus humanus corporis).

Insect pests Isoptera: Japanese subterranean termite (Reticulitermes speratus), Formosan subterranean termite (Coptotermes formosanus).

Insect pests Hemiptera: Leafhoppers (Delphacidae) such as small leafhopper (Laodelphax striatellus), brown rice leafhopper (Nilaparvata lugens) and white back rice leafhopper (Sogatella furcifera); leafhoppers (Deltocephalidae) such as green rice leafhoppers (Nephotettix cincticeps) and green rice leafhoppers from Taiwan (Nep ofcettix virescens); aphids (Aphididae); bed bugs (Pentatomidae); white flies (Aleyrodidae); insects (Coccidae); Cimices such as Cimex lectularius; lace bugs (Tingidae); and psyllids (Psyllidae).

Insect pests Coleoptera: Corn root worms (Diabrotica spp.) Such as black carpet worm (Attagenus japonicus), carpet beetle, varied. { Anthrenus verbasci), western corn rootworm (Diabrotica virgifera virgifera), and southern corn rootworm (Diabrotica undecimpunctata howardi) beetles (Scarabaeidae) such as cupric beetle. { Anomalous cuprea), and bean bean beetle (Anomalous rufocuprea); and weevils (Curculionidae) such as corn weevil. { Sitophilus zeamais), rice water weevil (Lissorhoptrus oryzophilus), baga weevil (Anthonomus granáis), and azuki bean weevil (Callosobruchus chinesis); dark beetles (Tenebrionidae) such as yellow food worm (Tenebrio molitor), and red flour beetle (Trijbolium castaneum); leaf beetles (Chrysomelidae) such as rice leaf beetle (Oulema oryzae), striped flea beetle (Phyllotreta striolata) and curcubit leaf beetle (Aulcophora femoralis); custodial beetles (Anobiidae); Epilachna • spp. such as the 28 spotted ladybug (Epilachna vigintioctopunctata); energy pole beetles (Lyctinae); False energy pole beetles (Bostrichidae); long-horned beetles (Cerambycidae); and walking beetle. { Paederus fuscipes).

Thysanoptera insect pests: Melon aphid. { Thrips palmi), yellow citrus aphid. { Frankliniella occidentalis) and flower aphid (Frankliniella intonsa).

Orthopterous insect pests: Grillo de mole (Gryllotalpidae), grasshopper (Acrididae).

Mites : House dust ticks (Pyroglyphidae) such as Dermatophagoides farinae, and Dermatophagoides ptrenyssnus; acarid ticks (Acaridae) such as mold ticks (Tyrophagus putrescentiae) and Aleuroglyphus ovatus; Glycifuged ticks such as Glycyphagus privatus, Glycyphagus domesticus, and Glycyphagus destructor; cheyletide ticks (Cheyletidae) such as Cheyletus malaccensis, and Cheyletus fortis; Tarsonemid ticks (Tarsonemidae); cortoglyphid ticks (Chortoglyphidae); Haplochthoniid ticks (Haplochthoniidae); Spider tick (Tetranychidae) such as two-spotted spider tick. { Tetranychus urticae), Kanzawa spider tick (Tetranychus kanzawai), red citrus tick. { Panonychus citri), European red tick (Panonychus ulmi), and parasitic ticks (Ixodidae) such as Hae aphysalis longicornis; parasitic ticks (Dermanyssidae) such as poultry ticks of the north (Ornithonyssus sylviarum), and red poultry tick (Der anyssus gallinae).

In particular, the present control composition exhibits an excellent control effect on insect pests Diptera, a more excellent control effect on mosquitoes (Calicidae).

In the present control composition, the weight ratio of the present ester compound A to the present ester compound B is not specifically limited as long as the excellent control effect of the present invention is maintained. Usually, the weight ratio is within the range of 50: 1 to 1:50, preferably 10: 1 to 1:10.

The present control composition can be a simple mixture of the present ester compound A and the present ester compound B. However, it is usually employed in the form of various formulations. Examples of the formulations include oily solution, emulsifier concentrate, wettable powder, suspension concentrate (for example, suspension in water and emulsion in water), microcapsule formulation, powder, granule, tablet, aerosol, carbon dioxide formulation, formulation of vaporization by heating (for example, spiral against mosquitoes, electric mat for mosquitoes and pesticide of spiral type of absorption of fluid), insecticide in aspersion of piezo type, fumigant of heating (by example, auto-incandescent fumigant, fumigant type chemical reaction and porous ceramic plate fumigant), non-heating fumigant (for example, resinous fumigant, fumigant on paper, non-woven fabric fumigant, fabric fumigant and sublimation tablet) , fuming formulation (e.g., nebulization), direct contact formulation (e.g., sheet type contact formulation, ribbon type contact formulation and network type contact formulation), ULV formulation and poisonous bait.

The formulation can be prepared, for example, by means of the following methods. (1) The present ester compound A and the present ester compound B are mixed with a solid carrier, a liquid carrier, a gaseous or food carrier and, if necessary, other auxiliary agents for formulations such as a surfactant. (2) A base material is impregnated with the present ester compound A and the present ester compound B. (3) The present ester compound A, the present ester compound B and a base material are mixed, followed by molding.

These formulations usually contain as a total amount 0.001 to 98% by weight of the present ester compound A and the present ester compound B.

Examples of the solid carrier used for the formulation include fine powders and granules such as clays (for example, kaolin clay, diatomaceous earth, bentonite, Fubasami clay and acid white clay), synthetic hydrated silicon oxide, talc, ceramics, other inorganic minerals (eg, sericite, quartz, sulfur, activated carbon, calcium carbonate and hydrated silica) and chemical fertilizers (eg, ammonium sulfate, ammonium phosphate, ammonium nitrate, ammonium chloride and urea); and solid materials at ordinary temperature (eg, 2,4,6-triisopropyl-1,3,5-trioxane, naphthalene, p-dichlorobenzene, camphor and adamantane) as well as skin, fibers, cloth, fabrics, sheets, paper, rags, foam, porous and multifilament materials composed of one or more of wool, silk, cotton, hemp, pulp, synthetic resins (for example, polyethylene resins such as low density polyethylene, linear low density polyethylene and high density polyethylene) ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymer; ethylene-methacrylate copolymers such as ethylene-methyl methacrylate copolymer and ethylene-ethyl methacrylate copolymer; ethylene-acrylate copolymers such as ethylene copolymer methyl acrylate and ethylene-ethyl acrylate copolymer; ethylene-vinyl carboxylate copolymers such as copolymer ethylene-acrylic acid; ethylene-tetracyclododecene copolymer; polypropylene resins such as propylene homopolymer and propylene-ethylene copolymer; poly-4-methylpentene-1; polybutene-1; polybutadiene; polystyrene; acrylonitrile-styrene resin; styrene elastomers such as acrylonitrile-butadiene-styrene resin, styrene-conjugated diene block copolymer and hydrogenated styrene-conjugated diene block copolymer; fluorinated plastics; acrylic resins such as polymethyl methacrylate; polyamide resins such as nylon 6 and nylon 66; polyester resins such as polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate and polycyclohexylene dimethylenterephthalate; polycarbonate; polyacetal; polyacrylsulfone; polyarylate; polyhydroxybenzoate; polyetherimide; polyester carbonate; polyphenylene ether resin; polyvinyl chloride; polyvinylidene chloride; polyurethane; and porous resins such as foamed polyurethane, foamed polypropylene and foamed polyethylene), glass, metals and ceramics.

Examples of the liquid carrier include aromatic or aliphatic hydrocarbons (eg, xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosene, light oil, hexane and cyclohexane), halogenated hydrocarbons (eg, chlorobenzene, dichloromethane, dichloroethane and trichloroethane), alcohols (eg. example, methanol, ethanol, isopropyl alcohol, butanol, hexanol, benzyl alcohol and ethylene glycol), ethers (for example, diethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, tetrahydrofuran and dioxane), esters (for example, ethyl acetate and butyl acetate), ketones ( for example, acetone, methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone), nitriles (eg, acetonitrile and isobutyronitrile), sulfoxides (eg, dimethylsulfoxide), acid amides (eg, N, N-dimethylformamide, N, N-dimethylacetoamide and N- methyl-pyrrolidone), alkylidenecarbonates (e.g., propylene carbonate), vegetable oils (e.g., soybean oil and cottonseed oil), vegetable essential oil (e.g., orange oil, hyssop oil and lemon oil) and Water.

Examples of the gaseous carrier include butane gas, chlorofluorocarbon gas, liquid petroleum gas (LPG), dimethyl ether and carbon dioxide; Examples of the surfactant include alkyl sulfate ester salts, alkyl sulfonates, alkylaryl sulfonates, alkylaryl ethers, polyoxyethylenated alkylaryl ethers, polyethylene glycol ethers, polyhydric alcohol esters and sugar alcohol derivatives.

Examples of other auxiliary agents for the Formulations include binders, dispersants and stabilizers. Their specific examples include casein, gelatin, polysaccharides (e.g., starch, gum arabic, cellulose derivatives and arginine acid), lignin derivatives, bentonite, saccharides, synthetic water-soluble polymers (e.g., polyvinyl alcohol, polyvinylpyrrolidone, and polyacrylic acid), BHT (2,6-di-t-butyl-4-methylphenol) and BHA (mixture of 2-t-butyl-4-methoxyphenol and 3-t-butyl-4-methoxyphenol).

Examples of the base material of a mosquito coil include a mixture of vegetable powder (eg, sawdust and pyrethrum) and a binder (eg, Machilus tunbergii powder, starch and gluten).

Examples of the base material of an electric mosquito mat include matted cotton fiber, condensed and compressed into a plate and mixed fibrils of cotton fiber and matted pulp, condensed and compressed into a plate.

Examples of the base material of an auto-incandescent fumigant include combustion heat development agents such as nitrates, nitrites, guanidine salts, potassium chlorate, nitrocellulose, ethylcellulose and wood powder; heat decomposition stimulating agents such as alkali metal salts, alkaline earth metal salts, bichromats and chromates; providers of oxygen such as potassium nitrate; combustion support agents such as melamine and wheat starch; fillers such as diatomaceous earth; and binders such as synthetic adhesives.

Examples of the base material of a fumigant of the chemical reaction type include heat development agents such as sulfur, polysulfide and alkali metal hydrosulfide and calcium oxide; catalysts such as carbonaceous materials, iron carbide and activated clay; organic foaming agents such as azodicarbonamide, benzenesulfonyl hydrazide, dinitropentamethylenetetramine, polystyrene and polyurethane; and fillers such as natural fibers and synthetic fibers.

Examples of the resin used, for example, for a resinous fumigant include polyethylene resins such as low density polyethylene, linear low density polyethylene and high density polyethylene; ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymer; ethylene-methacrylate copolymers such as ethylene-methyl methacrylate copolymer and ethylene-ethyl methacrylate copolymer; ethylene-acrylate copolymers such as ethylene-methyl acrylate copolymer and ethylene-ethyl acrylate copolymer; ethylene vinyl carboxylate copolymers such as ethylene-acrylic acid copolymer; ethylene copolymer- tetracyclododecene; polypropylene resins, such as propylene homopolymer and propylene-ethylene copolymer; poly-4-methylpentene-1; polybutene-1; polybutadiene; polystyrene; acrylonitrile-styrene resin; styrene elastomers such as acrylonitrile-butadiene-styrene resin, styrene-conjugated diene block copolymer and hydrogenated styrene-conjugated diene block copolymer; fluorinated plastics; acrylic resins such as polymethyl methacrylate; polyamide resins such as nylon 6 and nylon 66; polyester resins such as polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate and polycyclohexylene dimethylenterephthalate; polycarbonate; polyacetal; polyacrylsulfone; polyarylate; polyhydroxybenzoate; polyetherimide; polyester carbonate; polyphenylene ether resin; polyvinyl chloride; polyvinylidene chloride; and polyurethane. They can be used alone or in one of their combinations. On the other hand, if necessary, plasticizers such as phthalates (for example, dimethylphthalate and dioctylphthalate), adipates and stereostaric acid can be added to these base materials. The resinous fumigant is prepared by kneading the present ester compound A and the present ester compound B into the base material, followed by molding by injection molding, extrusion molding or compression molding. The resulting resin formulation can also be subjected to such processes as molding and cutting, if necessary, processing in a plate, film, tape, net and strip mold. These resin formulations can be processed, for example, into animal collars, animal ear tags, laminar formulations, guide strips and horticultural supports.

Examples of the base material for poisonous bait include food ingredients such as grain powder, vegetable oil, sugars and crystalline cellulose; antioxidants such as dibutylhydroxytoluene and nordihydroguararetic acid; preservatives such as dehydroacetic acid; prevention agents against accidental ingestion in children and pets such as chili; and pest-attracting flavors such as cheese flavoring, onion flavoring and peanut oil.

The pest control method of the present invention is carried out by applying the present control composition to pests and / or surfaces where pests live (eg, plant body, soil, inside and animal body). On the other hand, the pest control method of the present invention can also be carried out by separately applying the present ester compound A and the present ester compound B to pests and / or surfaces on which the pests live.

Specifically, as the method of application of the present control composition, it is possible to exemplify The following methods and methods can be selected in an appropriate manner, for example, according to the form of the control composition and the place of application. (1) The present control composition is applied as such to pests and / or surfaces on which the pests live. (2) The present control composition is diluted with a solvent such as water, followed by application to the pests and / or surfaces on which the pests live.

In this case, usually the present control composition in the form, for example, of emulsifier concentrate, wettable powder, suspension concentrate or microcapsule preparation is diluted so that the total concentration of the present ester compound A and the present ester compound B is from 0.01 to 1000 ppm. (3) The present control composition is heated in areas where the pests live to vaporize the effective ingredients.

In this case, the applied rate and the concentration of the present ester compound A and the present ester compound B can be appropriately determined, for example, according to the form of the present control composition, the period of application, the place of application, the method of application and the conditions of the damage.

By using the present control composition with For preventive purposes, the application rate is usually from 0.0001 to 1000 mg / m3 in terms of the total amount of the present ester compound A and the present ester compound B when applied to the space, while it ranges from 0.0001 to 1000 mg / m2 when applied to the plane. The formulation of vaporization by heating such as spiral against mosquitoes and electric mat for mosquitoes is applied by appropriate heating according to the form of the formulation to vaporize them. effective ingredients. The non-heating fumigant such as resinous fumigant, paper fumigant, tablet, fumigant non-woven fabric, fumigant woven fabric and foil formulation can be used, for example, leaving the formulation as it is in place to apply or wind towards the formulation.

Examples of the place where the present control composition is applied for preventive purposes include closet, dressing room, ark, cloakroom, closet, toilet, bathroom, pantry, living room, dining room, storeroom and inside a car. On the other hand, the composition can also be applied outside, in open spaces.

When the present control composition is used in cattle such as cows, horses, pigs, sheep, goats and chickens and small animals such as dogs, cats, rats and mice, for the purpose of controlling external parasites, known methods are applied to animals. in veterinary medicine Specifically, the formulation is administered as a tablet, mixing in food, suppository and injection ^ (including intramuscular, subcutaneous, intravenous and intraperitoneal injections), when a systemic control is sought. On the other hand, it is used as a spray of the oily solution or aqueous solution, pouring in or exact treatment, washing an animal with a shampoo formulation or placing a collar or label on the ear prepared with the resinous formulation to an animal , when non-systemic control is sought. The total dose of the present ester compound A and the present ester compound B is usually in the range of 0.01 to 1000 mg per 1 kg of animal body.

The present control composition can be used in combination or as a mixture with other ingredients, for example, pest control agents such as other insecticides, acaricides and repellents, synergists and pigments.

Next, the present invention will be described in greater detail by way of the Formulation Examples and the Test Examples. However, the present invention is not limited thereto.

First, the formulation examples of will be described. the present control composition. In the Formulation Examples, all "parts" are by weight, unless establish something else.

Formulation example 1 In 37.5 parts of xylene and 37.5 parts of N, N-dimethylformamide, 9 parts of the present ester compound A and 0.9 parts of the present ester compound B are dissolved. To the resulting solution, 9.1 parts of polyoxyethylene-butyl phenyl ether and 6 parts of calcium salt of dodecylbenzenesulfonic acid, followed by integral mixing to obtain an emulsifier concentrate.

Formulation example 2 To 20 parts of the present ester compound A and 20 parts of the present ester compound B, 5 parts of SORPOL 5060 (trademark of TOHO Chemical Industry Co., Ltd.) is added, followed by integral mixing. To the resulting mixture, 32 parts of CARPLEX # 80 (trademark of Shionogi &Co., Ltd., synthetic hydrated silicon oxide powder) and 23 parts of 300 mesh diatomaceous earth are added, followed by mixing with a Juice mixer to obtain a wettable powder.

Formulation example 3 To 3 parts of the present ester compound A and 0.3 parts of the present ester compound B, 5 parts of synthetic hydrated silicon oxide powder, 5 parts of sodium dodecylbenzenesulfonic acid salt, 30 parts of bentonite and 56.7 parts of clay are added. , followed by agitation and mixed whole. Then an appropriate amount of water is added to the resulting mixture. The mixture is then stirred, granulated with a granulator and air dried to obtain a granular formulation.

Formulation example 4 In a mortar, 5 parts of the present ester compound A, 0.5 part of the present ester compound B, 1 part synthetic hydrated silicon oxide powder, 1 part of DORILES B (registered trademark, manufactured by Daiichi Sankyo Co) are mixed well. ., Ltd.) as a flocculating agent and 7 parts of clay, followed by stirring and mixing with a juice mixer. To the resulting mixture, 85.5 parts of cut clay are added, followed by agitation and integral mixing to obtain a powder formulation.

Formulation example 5 A mixture of 10 parts of the present ester compound A, 1 part of the present ester compound B, 35 parts of white carbon with half of the ammonium salt of polyoxyethylene alkyl ether sulfate and 54 parts of water are ground finely by means of a "wet crushing" method to obtain a powder formulation.

Formulation example 6 In 10 parts of dichloromethane, 0.05 parts of the present ester compound A and 0.1 part of the present ester compound B are dissolved and the resulting solution is mix with 89.85 parts of an isoparaffin solvent (ISOPAR M, registered trademark of Exxon Chemical Co., Ltd.) to obtain an oily solution.

Formulation example 7 In an aerosol tube, 0.1 part of the present ester compound A, 0.05 part of the present ester compound B and 49.85 parts of Neotiozole (Chuo Kasei Co., Ltd.) are placed. After mounting an aerosol valve, 25 parts of dimethyl ether and 25 parts of LPG are charged, followed by stirring and then mounting an actuator to obtain an oily aerosol.

Formulation example 8 A mixture of 0.5 parts of the present ester compound A, 0.05 parts of the present ester compound B, 0.01 parts of BHT, 5 parts of xylene, 3.44 parts of deodorized kerosene and 1 part of an emulsifier (Atomos 300, registered trademark of Atomos Chemical Co., Ltd.) and 50 parts of distilled water are charged to an aerosol container and a valve part is fixed. Next, 40 parts of a propeller (LPG) are charged through the pressure valve to obtain an aqueous aerosol.

Formulation example 9 A piece of paper 0.5 cm thick, 69 cm long and 0.2 cm wide that had a honeycomb structure is rolled from one end to prepare a cylindrical carrier 5.5 cm in diameter and 0.2 cm in height. An appropriate amount of a prepared solution is applied by dissolving 5 parts of the present ester compound A and 0.5 parts of the present ester compound B in 94.5 parts of acetone evenly over the above carrier and the acetone is evaporated by air drying to obtain a paper formulation for vaporization.

Formulation example 10 A three-dimensional woven fabric (registered trademark: FUSION, model number: AKE69440, merchant: Asahi Kasei Fibers Corporation, thickness: 4.3 mm, fiber density: 321 g / m2, made of polyamide) is cut into a 5 cm round shape diameter. An appropriate amount of a prepared solution is applied by dissolving 5 parts of the present ester compound A and 0.5 parts of the present ester compound B in 94.5 parts of acetone evenly over the previous three dimensional woven fabric and the acetone is evaporated by drying air to obtain a woven fabric formulation for vaporization.

Formulation example 11 A mixture of 97.8 parts of an ethylene-methyl methacrylate copolymer (content of methyl methacrylate: 10% by weight, MFR = 2 [g / 10 min.]), 2 parts of the present ester compound A and 0.2 parts of the present ester compound B are melted and kneaded with an extruder 45 mm twin-screw 0 rotating in the same direction at 130 ° C and then melting and kneading with an extruder of 40 mm0 at 150 ° C, followed by extrusion of a T matrix in a laminar form and cooling with a roller of cooling to obtain a resinous formulation for vaporization.

Formulation example 12 A mixture of 97.8 parts of an ethylene-vinyl acetate copolymer (content of vinyl acetate: 10% by weight, MFR = 2 [g / 10 min.]), 2 parts of the present compound of ester A and 0.2 parts of the present ester compound B are melted and kneaded with a 45 mm0 twin-screw extruder rotating in the same direction at 130 ° C and then melted and kneaded with an extruder of 40 mm0 at 150 ° C, followed by extrusion of a matrix T in a laminar form and cooling with a cooling roll to obtain a resinous formulation for vaporization.

Formulation example 13 In 94.5 parts of acetone, 5 parts of the present ester compound A and 0.5 parts of the present ester compound B are dissolved, an appropriate amount of the resulting solution is applied to a paper having a collapsible structure (2000 cm2) and the acetone it is evaporated by air drying to obtain a paper formulation for vaporization.

Formulation example 14 A solution is prepared by dissolving 3 parts of the present composed of ester A and 0.3 parts of the present ester compound B in 14.6 parts of acetone. To this solution, 0.2 parts of zinc oxide, 1.0 part of OI starch and 42.8 parts of azodicarbonamide are added. On the other hand, 38.1 parts of water are added and the mixture is kneaded, molded in a granular form with an extruder and dried to obtain granules. In a container whose central portion is separated with an aluminum partition, the granules are placed in their upper space and 50 g of calcium oxide are placed in their lower space to obtain a fumigant.

Formulation example 15 To a mixture of 0.5 parts of zinc oxide, 2 parts of OI starch and 97.5 parts of azodicarbonamide, water is added and the mixture is kneaded and molded in a granular form with an extruder and dried to obtain granules. Next, 2 g of the granules are uniformly impregnated with a solution of 0.58 g of the present ester compound A and 0.058 g of the present ester compound B in acetone and dried to obtain granules. In a container whose central portion is separated with an aluminum partition, the granules are placed in their upper space and 50 g of calcium oxide are placed in their lower space to obtain a fumigant.

Formulation example 16 In 20 ml of acetone, 0.5 g of the present compound of ester A and 0.05 g of the present ester compound B and the resulting solution is added to a mixture of 99.4 g of a base material for a spiral of mosquitoes (a mixture of Machilus thunbergii powder, pyrethrum and sawdust in the ratio of 4: 3: 3) and 0.3 g of green pigment. After mixing well, add 120 ml of water to the mixture and knead well. The resulting mixture is molded and dried to obtain a spiral against mosquitoes.

Formulation example 17 A solution is prepared by mixing 10 parts of the present ester compound A, 1 part of the present ester compound B, 39.5 parts of acetyl tributyl citrate, 39.5 parts of isononyl adipate, 5 parts of blue pigment and 5 parts of a flavoring. A base material for an electrical mat for mosquitoes of 3.4 cm x 2.1 cm and 0.22 cm thickness (fibrillations packed, concentrated and pressed from a mixture of cotton fiber and pulp in a plate form) is impregnated uniformly with the Previous solution to obtain an electric mosquito mat.

Formulation example 18 A solution is prepared by dissolving 0.1 part of the present ester compound A and 0.01 part of the present ester compound B in 99.89 parts of deodorized kerosene. The solution is placed in a vinyl chloride container and a fluid absorption spiral (prepared by injecting an inorganic powder with a binder and then sintering it) which is processed so as to heat it on top with a heater, is inserted to obtain a portion of a spiral-type vaporization formulation of fluid absorption.

Formulation example 19 In an aerosol tube, 0.2 parts of the present ester compound A, 0.02 parts of the present ester compound B and 49.78 parts of Neotiozole (Chuo Kasei Co., Ltd.) are placed. After mounting an aerosol valve, 25 parts of dimethyl ether and 25 parts of LPG are charged, followed by agitation and subsequent mounting of an actuator for a total-content injection-type aerosol to obtain an aerosol formulation.

Formulation example 20 To 0.2 parts of the present ester compound A and 0.02 parts of the present ester compound B, 99.78 parts of diethylene glycol monoethyl ether are added, followed by integral mixing to obtain a pour-on formulation, to control external parasites.

Formulation Example 21 A solution is prepared by dissolving 3 parts of the present ester compound A and 0.3 parts of the present ester compound B in 96.7 parts of acetone and 1 ml of the solution is applied uniformly on a material disk-shaped solid (3 cm in diameter and 3 mm thick) obtained by molding 4 g of 2,4,6-triisopropyl-1,3,5-trioxane under pressure (4 t / cm 2), followed by drying to get a tablet.

Formulation example 22 A uniform mixture of 0.2 g of the present ester compound A, 0.02 g of the present ester compound B and 4 g of 2,4,6-triisopropyl-1,3,5-trioxane in a disk form (3 cm) is molded. in diameter and 3 mm thick) under pressure to obtain a tablet.

Formulation example 23 A mixture of 0.2 g of the present ester compound A, 0.02 g of the present ester compound B and 4 g of 2,4,6-triisopropyl-1,3,5-trioxane is placed in a 50 ml screw tube, it was melted with heat and then cooled to room temperature to obtain a tablet.

Next, the following Test Examples show that the present control composition has an excellent control effect on pests.

In the following Test Examples, as the present ester compound A, (IR) -trans-3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate of [2,3,5,6-tetrafluoro-4- (methoxymethyl) phenyl] methyl.

On the other hand, as the present compound of ester B, (IR) -trans-2, 2-dimethyl-3- (2-methyl-l- propenyl) [2, 3, 5, 6-tetrafluoro-4- (methoxymethyl) phenyl] methyl cyclopropancarboxylate.

Test example 1 An oily solution was prepared by diluting the present ester compound B with a given amount of an isoparaffin solvent (ISOPAR M, trademark of Exxon Chemical Co., Ltd.) in a concentration shown in the following Table 1 (hereinafter, mentioned as comparative composition (1)). Similarly, the present ester compound A was diluted with given amounts of an isoparaffin solvent (ISOPAR M, trademark of Exxon Chemical Co., Ltd.) to prepare oil solutions in concentrations shown in Table 1 (hereinafter , mentioned as comparative compositions (2) and (3)).

On the other hand, the present ester compound A and the present ester compound B were diluted with given amounts of a. isoparaffin solvent (ISOPAR M, registered trademark of Exxon Chemical Co., Ltd.) to prepare oily solutions in concentrations of the active ingredients shown in Table 1 (hereinafter, referred to as present compositions of the invention (1) and ( 2)) .

In a cubic chamber of 70 cm on each side, 10 Culex pipiens (females) were released and 0.7 ml of the present composition of the invention (1) was sprayed from a small window at the entrance into the chamber with a barrel. spray (spray pressure: 0.9 kg / cm2). In a given period after spraying, the quantity of knocked down insects was investigated and an annihilation rate (KD rate) was calculated. According to the same way, KD rates were calculated after a given period using the present composition of the invention (2) and the comparative compositions (1), (2) and (3) (two runs).

The results are shown in Table 1.

Table 1 Test example 2 A base material for a mosquito spiral (obtained by stirring and mixing Machilus thunbergii powder, pyrethrum and sawdust in the ratio of 4: 3: 3, adding water, kneading the resulting mixture well, followed by molding and drying) was treated uniformly with a given amount of water. an acetone solution of the present ester compound A and air dried to obtain a spiral of mosquitoes with the compound in a concentration shown in the following Table 2 (hereinafter, referred to as comparative composition (4)). Similarly, a mosquito spiral was obtained using the present ester compound A at a concentration shown in Table 2 (hereinafter, referred to as comparative composition (5)).

On the other hand, the present ester compound A and the present ester compound B were diluted with a given amount of acetone to obtain a spiral of mosquitoes with the compounds in concentrations shown in Table 2 (hereinafter, referred to as the present composition of the invention (3)).

In a cubic chamber of 70 cm on each side, 0.5 g of the present composition of the invention (3) was placed on a spiral of mosquitoes placed on the central part and capped. After the complete combustion of the spiral against mosquitoes, 20 Culex pipiens (females) were released from a small window at the entrance of the chamber. After a given period, the number of knocked down insects was investigated and an annihilation rate (KD rate) was calculated. According to the same way, the KD rate was calculated after one period using the comparative compositions (4) and (5) (two runs).

The results | are shown in Table 2.

As described hereinabove, the present invention can provide a pest control composition and a pest control method that has an excellent effect on pests.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (4)

CLAIMS Having described the invention as above, the content of the following claims is claimed as property:

1. - A pest control composition characterized in that it comprises as effective ingredients a combination of an ester compound represented by the formula (I): and an ester compound represented by the formula (ID:

2. - The pest control composition according to claim 1, characterized in that the weight ratio of the ester compound represented by the formula (I) to the ester compound represented by the formula (II) is within the range of 50: 1 to 1:50.

3. - A pest control method characterized in that it comprises the application of an effective amount of a combination of an ester compound represented by the formula (I): ester compound represented by the formula (II): to pests or areas where pests live.

4. - Use of a combination of an ester compound represented by the formula (I): and an ester compound represented by the formula to control pests.