Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
  • A01M1/00—Stationary means for catching or killing insects
  • A01M1/20—Poisoning, narcotising, or burning insects
  • A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
  • A01M1/2061—Poisoning or narcotising insects by vaporising an insecticide using a heat source
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
  • A01P17/00—Pest repellants
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
  • A01M1/00—Stationary means for catching or killing insects
  • A01M1/20—Poisoning, narcotising, or burning insects
  • A01M1/2005—Poisoning insects using bait stations
  • A01M1/2016—Poisoning insects using bait stations for flying insects
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing carboxylic groups or thio analogues thereof, directly attached by the carbon atom to a cycloaliphatic ring; Derivatives thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
  • A01N65/08—Magnoliopsida [dicotyledons]
  • A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
  • A01P7/00—Arthropodicides
  • A01P7/04—Insecticides

Definitions

• TECHNICAL FIELD The present invention relates to a thermal transpiration composition containing natural pyrethrins and pyrethroids and a method for exterminating arthropod pests using the same.
• Patent Literature 1 describes that a certain composition for heat vaporization has an exterminating effect on mosquitoes.
• composition for heat transpiration may not necessarily have a sufficient extermination effect on arthropod pests.
• the present inventor conducted studies in order to provide a composition for heat transpiration that is highly effective in exterminating harmful arthropods. As a result, the present inventors have found that a composition for heat vaporization containing natural pyrethrin and a pyrethroid compound in a specific ratio exhibits an excellent extermination effect against arthropod pests, and completed the present invention.
• the present invention includes, but is not limited to, the following aspects.
• a composition for thermal transpiration comprising natural pyrethrins and a pyrethroid compound, wherein the weight ratio of the active ingredient of the natural pyrethrins to the pyrethroid compound is in the range of 20:1 to 200:1.
• 2. The composition for thermal evaporation according to the preceding item 1, wherein the pyrethroid compound has a vapor pressure of 0.00001 Pa to 0.1 Pa at 25°C. 3.
• the pyrethroid compound is at least one pyrethroid compound selected from the group consisting of metofluthrin, dimefluthrin, transfluthrin, profluthrin, mepafluthrin, heptafluthrin, tetramethylfluthrin, and lenofluthrin.
• composition 4.
• An incense stick containing the composition according to any one of the preceding items 1 to 3.
• a mat preparation comprising the composition according to any one of the preceding Items 1 to 3. 7.
• a pest control preparation for heat transpiration comprising the composition according to any one of the preceding items 1 to 3.
• composition for thermal evaporation of the present invention exhibits excellent efficacy.
• the natural pyrethrin used in the invention includes six active ingredients: Pyrethrin I, Pyrethrin II, Cinerin I, Cinerin II, Jasmoline I, and Jasmoline II. Contains compounds. Natural pyrethrins are typically obtained by extracting only the flower antlers of pyrethrum (scientific name: Tanacetum cinerariifolium or Chrysanthemum cinerariaefolium), drying and pulverizing them, and adding an appropriate solvent such as methanol to dissolve the active ingredients in the powder. It can be obtained as an extract obtained by extracting using a pyrethrum dry powder.
• Natural pyrethrins may contain plant-derived impurities (fatty acids, flavonoids, etc.) in addition to the above six compounds.
• plant-derived impurities fatty acids, flavonoids, etc.
• As plants from which natural pyrethrins can be obtained in addition to the above-mentioned Pyrethrin, Calendula officinalis, Chrysanthemum coccinum, Tagetes erecta, Tagetes minuta, Zinnia elegans, Zinia linnearis, etc. are also known (Reference 1: Adnane). H. Alain, C. & Chantal, B. 2000. The Production of Pyrethrins by Plant Cell and Tissue Cultures of Chrysanthemum cinerariaefolium and Tagetes Species.
• the plant species and cultivars that serve as sources thereof are not limited to those mentioned above.
• the cultivation method, cultivation conditions (weather, production area, soil properties, etc.), harvest time, harvest part, harvest method, washing method, extraction method and purification method of the plant are not particularly limited.
• the natural pyrethrins used in the present invention include, for example, natural pyrethrins obtained using vectors incorporating genes encoding pyrethrin biosynthetic enzymes.
• the weight ratio of the six compounds of pyrethrin I, pyrethrin II, synerin I, synerin II, jasmolin I, and jasmolin II in natural pyrethrin is not particularly limited, and may be any weight ratio within the range of 0.001 to 99%. can be set, typically 10-70% pyrethrin I, 10-70% pyrethrin II, 1-20% synerin I, 1-20% synerin II, and 1-20% jasmolin I , jasmolin II in a weight ratio of 1-20%.
• Natural pyrethrins include pyrethrin I (total amount of pyrethrin I, synerin I, jasmolin I) and pyrethrin II (total amount of pyrethrin II, synerin II, jasmolin II), pyrethrin I at 20-40%, pyrethrin II , and the total amount of pyrethrins I and II in natural pyrethrins is usually 10 to 99%, preferably 15 to 90%, more preferably 20 to 85%. .
• natural pyrethrins are usually plant extracts, they may contain plant-derived impurities and auxiliary ingredients such as solvents and stabilizers in addition to the above six compounds.
• Solvents that can be used include petroleum and vegetable oils, and stabilizers that can be used include synthetic stabilizers and natural stabilizers.
• the active ingredients of natural pyrethrins in the present invention refer to pyrethrins I and II, and the fact that the weight ratio of the active ingredient of natural pyrethrins to the pyrethroid compound is in the range of 20:1 to 200:1 means that The ratio of the total weight of pyrethrins I and II to the weight of the pyrethroid compound is defined to be in the range of 20:1 to 200:1.
• pyrethroid compounds used in the present invention include pyrethroid compounds described in Reference (The Pesticide manual, Eighteenth edition, J. A. Turner, British Crop Production Council, ISBN 978-1-9998966-1-4). be done. From the viewpoint of transpiration, a pyrethroid compound having a vapor pressure of 0.00001 Pa to 0.1 Pa at 25°C is preferred. More specifically, at least one compound selected from the group consisting of metofluthrin, dimefluthrin, transfluthrin, profluthrin, mepafluthrin, heptafluthrin, tetramethylfluthrin, and lenofluthrin from the viewpoint of transpiration and efficacy. . The vapor pressure is measured using the method described in Example 1 of JP-A-2006-284560.
• composition for thermal transpiration of the present invention can also be described as an insecticidal composition for thermal transpiration as its aspect.
• Formulations using heat-transpiration compositions include, for example, incense sticks, mosquito mats, and heat-transpiration pest control formulations. However, it is not intended to be limited to the configurations described in the embodiments described below.
• the incense stick of the present invention typically comprises the composition for heat transpiration, a carbide base material, a combustion support agent, a bulking agent, a caking agent, and the like.
• carbide base material examples include charcoal, bamboo charcoal, vegetable activated carbon, coconut shell charcoal, and coffee grounds charcoal.
• Non-vegetable carbonized substrates such as activated carbon and petroleum activated carbon can be used, and vegetable-derived carbonized substrates are particularly preferred. Usually, these are used individually or in mixture of 2 or more types.
• fire-supporting agents examples include wood powder, tab powder (tab tree bark powder), lees powder (pyrrethrum extract powder), citrus skin powder, tea powder, palm oil powder, coconut shell powder, walnut shell powder, and other plants. Dry powders and carbon powders such as charcoal powder, activated carbon powder, and coal powder can be mentioned, and these can be used alone or in combination of two or more.
• Bulking agents include diatomaceous earth, talc, clay, and kaolin. These extenders are usually used alone or in combination of two or more.
• binders include polymeric compounds such as tab powder, starch (pregelatinized starch, tapioca starch, corn starch, wheat starch, etc.), casein, sham flour, methylcellulose, carboxymethylcellulose, and polyvinyl alcohol. are used alone or in combination of two or more.
• the amount of the carbide base material, the combustion support agent, the bulking agent, the binder, etc. can be freely adjusted according to the desired quality, but the total amount thereof is 85% by weight based on the weight of the entire mosquito coil. or more, more preferably 90% by weight or more.
• the incense stick of the present invention is, for example, kneaded by adding an appropriate amount of water to a mixture containing a composition for heat transpiration and an incense base material, molded by an extruder, a punching machine, etc., and then dried naturally or by heating.
• the composition for thermal evaporation may not be directly mixed with the mixture containing the base material for incense sticks, but may be coated or sprayed with a liquid agent containing the composition for thermal evaporation after molding only the base material for incense sticks.
• the shape of the incense stick of the present invention is not particularly limited. Rod-shaped, spiral-shaped and plate-shaped are preferred.
• the size is also not particularly limited, but for example, when the shape of the incense stick is rod-shaped, it is preferable to set the total length to 100 mm or less, the thickness to 7 mm or less, and the weight to 5 g or less. It is more preferable to set the weight to 0.2g or more and 3g or less, and if the shape of the incense stick is spiral, it is preferable to set the total length to 150cm or less, the thickness to 7mm or less, and the weight to 50g or less.
• the thickness is more preferable to set the thickness to 90 cm or more, the thickness to 2 mm or more to 5 mm or less, and the weight to 5 g or more and 20 g or less.
• the size is usually about 12 cm in diameter and 3 to 5 mm in thickness for a set of two.
• incense sticks are usually scented with appropriate scents, and recently, various volatile fragrance ingredients have been added for the purpose of obtaining aroma effects and relaxing effects. be.
• Various fragrance components can be added to the incense stick of the present invention for the purpose of obtaining aroma effects and relaxing effects.
• perfume ingredients include galaxolide, musk ketone, hexyl cinnamic aldehyde, isoe super, methyl dihydrojasmonate, ethylene brassylate, geraniol, methyl atralate, hexyl salicylate, tricyclodecenyl acetate, oranger crystal, ambro Xane, Tonalide (6-acetyl-1,1,2,4,4,7-hexamethyltetralin), ⁇ -Undecalactone, Cashmelan, Charon, Heliotropine, Dihydroindenyl-2,4-dioxane, ⁇ -isomethylionone, indole, methyl cedryl ketone, methyl beta-naphthyl ketone, rosephenone, coumarin, vanillin, styrax resinoid, benzyl benzoate, undecanal, benzyl salicylate, ionone, alpha-
• the content of the perfume component is preferably 0.001 to 5% by weight, more preferably 0.01 to 1% by weight, based on the total weight of the incense stick. If the content of the perfume component is less than 0.001% by weight, it may not be possible to create a sufficient fragrance. If the content of the perfume component exceeds 5% by weight, the odor and irritation may become too strong.
• the incense stick of the present invention can contain antifungal agents, preservatives, stabilizers, potency enhancers, deodorants, etc. as other ingredients.
• antifungal agents or preservatives include dehydroacetate, sorbate, p-hydroxybenzoate, and the like.
• stabilizers examples include 2,6-di-tert-butyl-4-methylphenol (BHT), 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 2,2'-methylenebis(4 -ethyl-6-tertiarybutylphenol), 4,4'-butylidenebis(3-methyl-6-tertiarybutylphenol), 4,4'-thiobis(3-methyl-6-tertiarybutylphenol), 2-tertiary Butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate, 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxy benzoate and the like.
• BHT 2,6-di-tert-butyl-4-methylphenol
• BHT 2,2'-methylenebis(4-methyl-6-tert-butylphenol)
• the incense stick of the present invention can contain colorants such as malachite green and food additives (food blue No. 1, food yellow No. 4, food red No. 106, etc.).
• the mat preparation of the present invention is prepared by applying a solution obtained by mixing a composition for thermal evaporation, a solvent, a pigment, an antioxidant, a synergist, a stabilizer, a perfume, etc., to a fibrous carrier or porous carrier. It can be produced by impregnation.
• the mat formulation can be used, for example, as an electric mosquito mat.
• fibrous carriers include natural fibers such as pulp, cellulose and cotton, synthetic fibers such as polyester and acrylic, and inorganic fibers such as glass fibers and asbestos.
• porous carriers include diatomaceous earth. porous inorganic substances, porous magnetic substances such as bisque, and porous resins such as urethane foam and polypropylene foam.
• the size of the electric mosquito repelling mat is usually about 2.2 cm ⁇ 3.5 cm ⁇ 0.28 cm, but it is not limited to this shape, and the shape, size, and thickness of the mat
• the amounts and ratios of the composition for thermal evaporation and other components to be blended can be appropriately adjusted in accordance with changes such as the above.
• the content of the composition for heating and transpiration per sheet of the 2.2 cm ⁇ 3.5 cm ⁇ 0.28 cm mat is the type and content of the composition for heating and transpiration, and the use of an electric mosquito mat. Although it varies depending on time, etc., it is usually about 1 to 2000 mg, preferably about 1 to 100 mg.
• the heat-transpiration pest control formulation of the present invention is a formulation that can be used, for example, in a heat-transpiration type insecticidal device as shown in FIG.
• a chemical solution bottle 4 is filled with a solution 1 containing a composition for thermal evaporation.
• Part of the absorbent core 3 is immersed in the solution 1, the absorbent core is made to absorb the solution containing the composition for thermal evaporation, and the upper part of the absorbent core is heated by the heating element 2. can be done.
• the heat-transpiration pest control preparation of the present invention is not limited to the apparatus shown in FIG. Heat-transpiration-type insecticidal devices to which the heat-transpiration pest control preparation of the present invention can be applied are described in, for example, Japanese Patent Publication No. 52-12106, Japanese Utility Model Publication No. 58-45670, and Japanese Patent Application Laid-Open No. 2012-176947. there is
• the composition for heat transpiration is prepared in the form of a solution (solution 1) containing the composition for heat transpiration.
• An oily solvent or an aqueous solvent is used as the solvent for preparing the pest control formulation for thermal evaporation.
• an oily solvent having a boiling point of 350° C. or lower is usually used.
• various organic solvents typically hydrocarbon solvents, can be used.
• aliphatic hydrocarbons paraffinic hydrocarbons and unsaturated aliphatic hydrocarbons
• solvents include deodorized kerosene, n-paraffin, isoparaffin (eg, IP Solvent (manufactured by Idemitsu Kosan Co., Ltd.)), sewing lube (manufactured by ENEOS), and the like.
• non-hydrocarbon organic solvents include glycerin, propylene glycol, methanol, acetone, xylene, chloroform, isopropanol, and chloroform.
• an aqueous solvent usually glycol ether and water are used.
• glycol ethers include, for example, ethylene glycol-based ethers, propylene glycol-based ethers, and dialkyl glycol-based ethers, preferably ethylene glycol-based ethers.
• ethylene glycol-based ethers ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, and propylene glycol monopropyl ether are preferred.
• Glycol ethers can be used singly or as a mixture of two or more.
• the weight ratio of glycol ether to water is usually in the range of 1:0.4 to 1:8.5, preferably in the range of 1:1 to 1:8.5, more preferably in the range of 1:1.4 to 1:3. .6 range.
• the concentration of the composition for heat transpiration in the pest control preparation for heat transpiration is usually adjusted to about 6 to 80% by weight, preferably about 10 to 75% by weight, more preferably about 15 to 50% by weight.
• the heat transpiration pest control preparation of the present invention may contain other components such as thickeners, surfactants, stabilizers, preservatives, and synergists.
• heat generating element 2 used in the thermal transpiration type insecticidal apparatus
• a heat generating element that generates heat when energized is generally used, but is not limited to this. Any known heating element such as a heating material using a platinum catalyst or the like can be used.
• the absorbent core 3 is generally made of a porous material.
• the porous material include inorganic powders such as clay, talc, kaolin, diatomaceous earth, gypsum, perlite, bentonite, acid clay, glass fiber and asbestos, and inorganic powders such as carboxymethylcellulose, starch, gum arabic, gelatin and polyvinyl alcohol. It is usually used after it has been caking and molded with a paste.
• the absorbent core may contain pigments, preservatives, antioxidants, etc., as appropriate, and can be contained, for example, by mixing the inorganic powder and the paste at the time of caking.
• Pests to be controlled by the composition for thermal transpiration of the present invention and formulations using the composition for thermal transpiration include various harmful insects and arthropods such as mites, particularly harmful flying insects such as Culex pipiens, Culex species such as Culex pipiens, Culex aegypti, and Culex pipiens, Aedes mosquitoes such as Aedes aegypti and Aedes albopictus, Anopheles mosquitoes such as China anopheles, Chironomid, House flies such as house fly, Japanese house fly, and lesser flies, blow flies, flesh flies, fruit flies, fruit flies, fleas flies Diptera pests such as genus, gadflies, blackflies, biting flies, biting midges and the like. Among them, mosquitoes such as Culex, Aedes, and Anopheles are particularly mentioned as insect pests to be controlled.
• Production example 1 (kneaded incense stick 1) 1 part by weight of natural pyrethrin, 0.05 part by weight of dimeflutrin, 39 parts by weight of tab powder, 30 parts by weight of lees powder, and 30 parts by weight of wood powder as a combustion improver are mixed, and 0.3 part by weight of green pigment is added to obtain a uniform mixture. After stirring and mixing, 120 parts by weight of water was added and sufficiently kneaded. The kneaded product is molded into a sheet, punched out in a spiral shape, and dried until the moisture content reaches about 7 to 10% by weight to prepare the incense preparation of the present invention.
• Production example 2 (kneaded incense stick 2) 1 part by weight of natural pyrethrin, 0.05 part by weight of dimeflutrin, 50 parts by weight of charcoal as a carbonized base material, 0.8 parts by weight of a mixed perfume containing galaxolide, musk ketone, etc. as a perfume component, 17 parts by weight of lees powder as a combustion-supporting agent, and 10.7 parts by weight of wood flour, 3 parts by weight of diatomaceous earth as a bulking agent, and 14 parts by weight of pregelatinized starch and 3 parts by weight of carboxymethyl cellulose as a binding agent are mixed, and 90 parts by weight of water is added to the mixture. Kneaded. The kneaded product is extruded into a rod shape and then dried until the moisture content reaches about 7 to 10% by weight to prepare the incense preparation of the present invention.
• Production Example 3 (mat preparation 1) Obtained by mixing 10.5 parts by weight of natural pyrethrins, 0.5 parts by weight of transfluthrin, 39.5 parts by weight of acetyltributyl citrate, 39.5 parts by weight of isononyl adipate, 5 parts by weight of blue pigment and 5 parts by weight of perfume. 120 mg of the resulting solution was uniformly impregnated into an electric mat base material (fibrous carrier made of pulp and cotton linter) of 2.1 cm x 3.4 cm and 0.22 cm thickness to obtain the electric mosquito mat preparation of the present invention. to make.
• an electric mat base material fibrous carrier made of pulp and cotton linter
• Production Example 4 (mat formulation 2) 20.0% by weight of natural pyrethrin, 1.0% by weight of metofluthrin, 10% by weight of dibutylhydroxytoluene, 25% by weight of diisononyl adipate, 30% by weight of tributyl acetate citrate, and an isoparaffin-based solvent (manufactured by Showa Shell Sekiyu K.K., trade name : Merveille 40) Dissolve 8 mg of 1,4-dibutylaminoanthraquinone and 40 mg of 1,8-bis(phenylthio)dodecahydroanthraquinone in 5 g of a solution consisting of 14.0% by weight.
• a base material for an electric mat (a fibrous carrier made of pulp and cotton linter) having a thickness of 0.28 cm is uniformly impregnated to prepare the electric mosquito mat formulation of the present invention.
• Production Example 6 (mat formulation 4) 50.0% by weight of natural pyrethrin, 0.25% by weight of metofluthrin, 15% by weight of dibutylhydroxytoluene, 4.75% by weight of diisononyl adipate, 20% by weight of tributyl acetate citrate, and an isoparaffin solvent (manufactured by Showa Shell Sekiyu K.K., Trade name: Merveille 40) 8 mg of 1,4-dibutylaminoanthraquinone and 40 mg of 1,8-bis(phenylthio)dodecahydroanthraquinone are dissolved in 5 g of a 10% by weight solution, and 2000 mg of the solution is 2.2 cm x 3.5 cm. , a base material for an electric mat (fibrous carrier made of pulp and cotton linter) having a thickness of 0.28 cm is uniformly impregnated with the material to prepare the electric mosquito mat formulation of the present invention.
• an electric mat
• Production Example 8 (Insect Control Formulation 2 for Thermal Transcription) 10.5 parts by weight of natural pyrethrin and 0.5 parts by weight of metofluthrin are mixed and dissolved in 89 parts by weight of deodorized kerosene, the resulting solution is filled in a 45 mL vinyl chloride container, and the upper part is closed through an inner plug. By inserting a porous liquid-absorbent wick (inorganic powder solidified with a binder and sintered) that can be heated by a heater, the insect pest control preparation for heating and transpiration of the present invention is prepared.
• a porous liquid-absorbent wick inorganic powder solidified with a binder and sintered
• Production Example 9 (pest control preparation for heat transpiration 3) 10.5 parts by weight of natural pyrethrin and 0.5 parts by weight of metofluthrin are mixed and dissolved in 50 parts of diethylene glycol monobutyl ether, 1.8 parts of dibutylhydroxytoluene, and 46.7 parts of water.
• the pest control preparation for thermal transpiration of the present invention is prepared by filling a plastic container and inserting a porous liquid-absorbing wick whose upper part can be heated by a heater through an inner plug.
• test preparation 75 parts by weight of wood flour, 5 parts by weight of tab powder, 5 parts by weight of lees powder, 10 parts by weight of Siamese powder and 5 parts by weight of tapioca starch are mixed, and an appropriate amount of water is added to make the test preparation (incense stick). Kneaded. The kneaded material was molded into a sheet, punched out in a spiral shape, and then dried until the water content reached about 7 to 10% by weight to prepare a blank incense stick. An acetone solution of the test compound diluted to a predetermined concentration was evenly dripped onto the blank incense stick thus obtained, and air-dried to prepare a test formulation.
• Test example 1 Twenty adult female Culex pipiens pallens were placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm. A metal tube having a diameter of 22 cm and a height of 83 cm was placed upright, and two glass tubes containing the Culex pipiens were placed upright and fixed in the upper opening. The formulation prepared by the above method was ignited and placed in the lower opening of the metal cylinder. The knockdown population of Culex pipiens was recorded after 6 minutes. The experiment was repeated three times to determine the knockdown rate (hereinafter abbreviated as KD rate).
• KD rate the knockdown rate
• the KD rate expected when these are mixed is calculated from Colby's formula and is shown in Table 1 below as an expected value.
• the concentration of natural pyrethrins represents the concentration of the active ingredient in natural pyrethrins.
• Theoretical expected value (%) based on Colby's formula A + (100-A) x B/100
• a and B mean the following numbers A: KD rate (%) when only A is processed B: KD rate (%) when only B is treated
• Test example 2 Twenty adult female Culex pipiens pallens were placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm. A metal cylinder having a diameter of 22 cm and a height of 83 cm was placed upright, and two glass tubes containing the Culex pipiens were erected and fixed in the upper opening. The formulation prepared by the above method was ignited and placed in the lower opening of the metal cylinder. After 7 minutes, the number of knockdown (hereinafter referred to as KD) populations of Culex pipiens was recorded. The experiment was repeated three times to obtain the KD rate. In addition, the KD ratio expected from the KD ratio when natural pyrethrin and each pyrethroid compound are used alone is calculated from Colby's formula and shown in Table 2 below as an expected value.
• KD knockdown
• Test example 3 Twenty adult female Culex pipiens pallens were placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm. A metal cylinder having a diameter of 22 cm and a height of 83 cm was placed upright, and two glass tubes containing the Culex pipiens were erected and fixed in the upper opening. The formulation prepared by the above method was ignited and placed in the lower opening of the metal cylinder. After 10 minutes, the number of knockdown (hereinafter referred to as KD) populations of Culex pipiens was recorded. The experiment was repeated three times to obtain the KD rate. The KD ratios expected from the KD ratios when the natural pyrethrin and each pyrethroid compound were used alone were calculated from Colby's formula and shown in Table 3 below as expected values.
• KD knockdown
• the incense sticks of the present invention containing natural pyrethrins and pyrethroid compounds at a predetermined mixing ratio are more effective than those expected from the effects of natural pyrethrins or pyrethroid compounds alone. was also shown to be highly effective.
• Test example 4 Twenty Culex pipiens pallens female adults are placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm. A metal cylinder with a diameter of 22 cm and a height of 83 cm is erected, and two glass tubes containing the Culex pipiens are erected and fixed in the upper opening. A mat preparation of the present invention prepared according to Formulation Example 3 or 4 is obtained. The mat preparation is set in a commercially available insecticidal mat heater, placed in the lower opening of a metal cylinder, and heated. After 10 minutes, the knockdown (hereinafter referred to as KD) population of Culex pipiens is recorded to obtain the KD rate.
• KD knockdown
• the mat preparation of the present invention containing natural pyrethrins and pyrethroid compounds in a predetermined mixing ratio exerts a higher effect than expected from the effects of natural pyrethrins or pyrethroid compounds alone. can.
• the composition for heat transpiration shown in Table 4 below can be mentioned.
• the mat formulation of the present invention containing natural pyrethrin and each pyrethroid compound in a predetermined mixing ratio exhibited a higher effect than expected from the effect of natural pyrethrin or each pyrethroid compound alone. It can be confirmed that it works.
• Test example 5 Twenty Culex pipiens pallens female adults are placed in a glass tube with a diameter of 4.5 cm and a height of 12 cm. A metal cylinder with a diameter of 22 cm and a height of 83 cm is erected, and two glass tubes containing the Culex pipiens are erected and fixed in the upper opening. A pest control preparation for thermal evaporation of the present invention prepared according to Formulation Examples 7, 8 or 9 is obtained. The heat-transpiration pest control preparation is set in the heat-transpiration type insecticidal device shown in FIG. 1, placed in the lower opening of the metal cylinder, and heated. After 10 minutes, the knockdown (hereinafter referred to as KD) population of Culex pipiens is recorded to obtain the KD rate.
• KD knockdown
• the thermally transpirable pest control preparation of the present invention which contains natural pyrethrins and pyrethroid compounds in a predetermined mixing ratio, exhibits a higher effect than is expected from the effects of the natural pyrethrins or the pyrethroid compounds alone. can be confirmed.
• the composition for heat transpiration used in the pest control preparation for heat transpiration which can be confirmed to be highly effective in this test example, the composition for heat transpiration shown in Table 5 below can be mentioned.
• the thermally transpirable pest control preparation of the present invention containing natural pyrethrin and each pyrethroid compound at a predetermined mixing ratio is more effective than expected from the effect of natural pyrethrin or each pyrethroid compound alone. It can be confirmed that a high effect is exhibited.
• composition for thermal transpiration of the present invention By using the composition for thermal transpiration of the present invention, it is possible to control harmful arthropods.

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• 2022
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