JP6028078B2 - Control material for controlling adult mosquitoes - Google Patents

Description

  The present invention relates to a control material for controlling adult mosquitoes.

  Patent Document 1 discloses a pest control material in which a pest control component is held on a carrier such as a thermoplastic resin. Patent Document 2 discloses a net-like pest control material made of a resin composition containing a pest control component.

Japanese Patent Laid-Open No. 11-21206 JP 2008-13508 A

  An object of the present invention is to provide a control material having an excellent control effect against adult mosquitoes.

  The present invention is a control material characterized in that a pyrethroid compound and an insect growth regulator are held on a carrier.

That is, the present invention is as follows.
[1] A control material for controlling adult mosquitoes, characterized in that it retains permethrin and pyriproxyfen by a thermoplastic resin and has a net shape.
[2] The control material for controlling an adult mosquito according to [1], wherein a mesh size of the net is in a range of 2 to 4 mm.
[3] The control material for controlling an adult mosquito according to [1] or [2], wherein the net is a mosquito net.
[4] A method for controlling adult mosquitoes, comprising using the control material for controlling adult mosquitoes according to any one of [1] to [3].

  According to the present invention, it is possible to exert an excellent control effect against adult mosquitoes.

FIG. 3 is a partial view of a control material for controlling an adult mosquito having a knitted net structure. FIG. 3 is a partial view of a control material for controlling an adult mosquito of the present invention having a woven net structure.

  The control material for controlling adult mosquitoes of the present invention is made by holding a pyrethroid compound and an insect growth control agent on a carrier.

(1) Carrier It is preferable to use a resin. In addition, you may use fiber materials, such as a natural fiber and glass fiber. Examples of natural fibers include pulp, cellulose, cotton, and hair.

  As the resin, a thermoplastic resin is preferable. As the thermoplastic resin, polyolefin resin, polyvinyl alcohol, polyvinyl acetate, polycarbonate, polyester, polyamide, polystyrene, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer, polyvinyl chloride, or the like can be used.

In addition, as a thermoplastic resin, polyolefin resin is preferable. As the polyolefin resin, the following compounds are preferable.
(I) Homopolymer of α-olefin: For example, polyethylene, polypropylene and the like.
(Ii) ethylene-α-olefin copolymer: for example, ethylene-propylene copolymer, ethylene-butene-1 copolymer, ethylene-4-methyl-1-pentene copolymer, or ethylene-hexene copolymer Such.
(Iii) Copolymer of an organic carboxylic acid derivative having an ethylenically unsaturated bond and ethylene: for example, ethylene-methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, or ethylene -Vinyl acetate-methyl methacrylate copolymer and the like.

(2) Pyrethroid compound and insect growth regulator
(2-1) Pyrethroid compound Examples of the pyrethroid compound include acrinathrin, allethrin, d-arethrin, dd-alleslin, beta-cyfluthrin, bifenthrin, cycloprotorin, Cyfluthrin, cyhalothrin, cypermethrin, dimethylfluthrin, empentrin, deltamethrin, phenethrin, phenethrin, phenethrin Fenpropathrin, fenvalerate, flucytrinate, flufenprox, flumethrin, fluvalinate, profluthrin, profluthrinprox imiprothrin, permethrin, benfurthrin, praretrin, pyrethrins, resmethrin, d-resmethrin, sigma-cypermethrin, sigma-cypylmethyr silaflufen, tefluthrin, tralomethrin, transfluthrin, tetramethrin, d-tetramethrin, phenothrin, phenothrin, c, phenothrin, c cypermethrin), cyalphacypermethrin, zeta-cypermethrin, lambda-cyhalothrin, gamma-cyhalothrin, flamethrin-furamethurine, furamethurine. alinate), metfurthrin, natural pyrethrin and the like.

  In addition, as a pyrethroid compound, permethrin, deltamethrin, or alpha cypermethrin is preferable.

  These pyrethroid compounds can be used alone or in combination of two or more. Some of the above compounds have optical isomers, stereoisomers, geometric isomers and the like, but the pyrethroid compounds of the present invention include active isomers and mixtures thereof.

(2-2) Insect growth regulator Specific examples of insect growth regulators include juvenile hormone active compounds and chitin synthesis inhibitors.

  Examples of the juvenile hormone active compound include pyriproxyfen, metoprene, hydroprene, phenoxycarb, and the like.

  Examples of chitin synthesis inhibitors include etoxazole, chlorfluazuron, fluazuron, triazuron, novallon, hexaflumuron, diflubenzuron, cyromazine, flufenoxuron, teflubenzuron, triflumuron, flucycloxuron, hydroprene, lufenuron, nobiflumuron, bistrin Examples include fullon.

(3) Aspect For example, the following aspect is specifically mentioned.
(3-1) A pyrethroid compound and an insect growth regulator are mixed in a carrier.
(3-2) The carrier surface is coated with a pyrethroid compound and an insect growth regulator.
(3-3) A pyrethroid compound is mixed with a carrier, and an insect growth regulator is coated on the surface of the carrier.
(3-4) A pyrethroid compound is coated on the surface of the carrier, and an insect growth regulator is mixed with the carrier.

The compounding ratio of the pyrethroid compound and the insect growth regulator is 1: 10000 to 1000: 1, preferably 1: 1000 to 100: 1. Furthermore, the compounding ratios for the specific components are as follows.
Permethrin: pyriproxyfen = 1: 100-100: 1
Deltamethrin: pyriproxyfen = 1: 1000-20: 1
Alphacypermethrin: pyriproxyfen = 1: 1000-20: 1
Permethrin: methoprene = 1: 100-100: 1
Deltamethrin: methoprene = 1: 1000-20: 1
Alpha cypermethrin: methoprene = 1: 1000-20: 1

The compounding ratio of the pyrethroid compound and the insect growth regulator is more preferably 1:20 to 20: 1, still more preferably 1:10 to 10: 1, and still more preferably 1: 5 to 5: 1, particularly preferably 1: 2 to 2: 1.

(4) Manufacturing method The control material of this invention can be manufactured as follows (i), (ii), or (iii), for example. In addition, (i)-(iii) demonstrates the case where a thermoplastic resin is used as a support | carrier.
(I) A thermoplastic resin, a pyrethroid compound, an insect growth control agent, and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, and the resin composition Is used to obtain a resin body in a predetermined form. Thereby, a control material is obtained.
(Ii) A thermoplastic resin, one of a pyrethroid compound and an insect growth control agent, and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, and the resin composition Is used to obtain a resin body in a predetermined form. Then, the other of the pyrethroid compound and the insect growth regulator is coated on the surface of the resin body. Thereby, a control material is obtained.
(Iii) A thermoplastic resin and an optional compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition. A resin body having a predetermined form is obtained using the resin composition. obtain. Then, the surface of the resin body is coated with a pyrethroid compound and an insect growth regulator. Thereby, a control material is obtained.

In the above methods (i) to (iii), the resin body can be formed by, for example, melt molding a resin composition, but may be formed by other molding methods. As such a molding method, a method usually used in resin molding can be used, and examples thereof include extrusion molding, injection molding, blow molding, compression molding, powder molding, and press molding.

  In addition, as a method for coating the carrier surface with the pyrethroid compound and / or insect growth control agent, for example, the component is used as it is or dissolved in a solvent such as alcohol, and the resin body is dipped or sprayed. Or the method of apply | coating treatment is mentioned.

Also, after supporting at least one of a pyrethroid compound and an insect growth regulator on an auxiliary carrier, the resin composition is melt-kneaded with a thermoplastic resin to obtain a resin composition, and a resin body having a predetermined form is obtained using the resin composition. It can also be obtained. Examples of the auxiliary carrier include silica compounds, zeolites, viscous minerals, metal oxides, mica, hydrotalcites, and organic carriers.
Silica compounds include amorphous silica and crystalline silica, and examples thereof include powdered silicic acid, finely powdered silicic acid, acid clay, diatomaceous earth, quartz, and white carbon. Examples of zeolites include A-type zeolite and mordenite, and examples of viscosity minerals include montmorillonite, saponite, beidellite, bentonite, kaolinite, halloysite, nacrite, decait, anoxite, illite, and sericite. Examples of the metal oxide include zinc oxide, magnesium oxide, aluminum oxide, iron oxide, copper oxide, and titanium oxide. Examples of the mica include mica and vermiculite. And hydrotalcite, smectite, etc., and organic carriers include charcoal (charcoal, peat, grass charcoal, etc.), polymer beads (microcrystalline cellulose, polystyrene beads, acrylate beads, methacrylate esters) , Polyvinyl alcohol Over's, etc.), and the crosslinked polymer beads and the like thereof, and the like. In addition, pearlite, gypsum, ceramic, volcanic rocks and the like can be mentioned. As the auxiliary carrier, an amorphous inorganic carrier is preferable, and amorphous silica is more preferable.

  The control material of the present invention includes synergists, neonicotinoid compounds, carbamate compounds, organophosphorus compounds, phenylpyrazole compounds, pyrrole compounds and oxadiazine compounds such as insecticides, repellents, antioxidants, Antifungal agent, antibacterial agent, pigment, fragrance, deodorant, spreading agent, UV absorber, light stabilizer, lubricant, antiblocking agent, antistatic agent, surfactant, filler, intractable agent, plastic You may contain compounding agents, such as an agent or a rust preventive agent.

When a synergist is used as the compounding agent, the control material of the present invention can be produced, for example, as in the following (i), (ii), or (iii). In addition, (i)-(iii) demonstrates the case where a thermoplastic resin is used as a support | carrier.
(I) A thermoplastic resin, a pyrethroid compound, an insect growth control agent, a synergist, and any other compounding agent are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition. A resin body having a predetermined form is obtained using the resin composition. Thereby, a control material is obtained.
(Ii) A mixture obtained by stirring and mixing a thermoplastic resin, at least one component selected from the group consisting of a pyrethroid compound, an insect growth regulator, and a synergist, and any other compounding agent. Is melt-kneaded to obtain a resin composition, and a resin body having a predetermined form is obtained using the resin composition. And the component which was not selected from the said group is coated on the surface of a resin body. Thereby, a control material is obtained.
(Iii) A thermoplastic resin and other optional compounding agents are stirred and mixed, and the resulting mixture is melt-kneaded to obtain a resin composition, and a resin in a predetermined form using the resin composition Get the body. And a pyrethroid compound, an insect growth control agent, and a synergist are coated on the surface of a resin body. Thereby, a control material is obtained.

As a synergist, the following are mentioned, for example.
Α- [2- (2-butoxyethoxy) ethoxy] -4,5-methylenedioxy-2-propyltoluene [piperonylbutoxide (PBO)]
N- (2-ethylhexyl) -1-isopropyl-4-methylbicyclo (2,2,2) oct-5-ene-2,3-dicarboximide [Sinepirine 500]
・ Butyl stearate ・ Bis- (2,3,3,3-tetrachloropropyl) ether [S-421]
N- (2-ethylhexyl) bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide [MGK264]

  The blending amount of each component in the control material of the present invention is preferably 30 to 99% by weight of a thermoplastic resin, 0.01 to 50% by weight of a pyrethroid compound, and 0.001 to 50% by weight of an insect growth control agent. 50 to 99% by weight, pyrethroid compound 0.1 to 25% by weight, and insect growth regulator 0.01 to 25% by weight are more preferable.

  Furthermore, the amount of each component in the control material of the present invention when it contains a synergist is 30 to 99% by weight of a thermoplastic resin, 0.01 to 50% by weight of a pyrethroid compound, and 0.001 to 50 of an insect growth control agent. % By weight, and 0.01 to 50% by weight synergist, thermoplastic resin 50 to 99% by weight, pyrethroid compound 0.1 to 25% by weight, insect growth regulator 0.01 to 25% by weight, and co-agent More preferred is 0.1 to 25% by weight of power agent.

(5) Form The control material of the present invention preferably has a net form. This net can be formed by knitting or weaving the yarn obtained by spinning the resin composition in the methods (i) to (iii) so as to form a large number of meshes. The net has a knitted structure when formed by knitting, and has a woven structure when formed by woven. FIG. 1 shows an example of a knitted net formed by knitting the yarn 1 so as to form a large number of meshes 3, and FIG. 2 shows that the yarn 1 forms a large number of meshes 3. 1 shows an example of a woven net formed by weaving. The net preferably has a knitted structure.

  The size of the mesh 3 is appropriately set according to the length of the pest to be controlled, and is preferably such that the pest contacts the net when attempting to pass through the net. Generally, the size (hole size) of the mesh 3 is in the range of 1 to 5 mm, preferably 2 to 4 mm.

  The yarn 1 is preferably a monofilament having a predetermined thickness. According to this, knitting work and weaving work become easy. In this case, the “predetermined thickness” is a thickness capable of maintaining the strength as the control material. Generally, when the yarn 1 is a monofilament, it is preferable to use a monofilament in the range of 50 to 350 denier.

  The yarn 1 may be a multifilament having a predetermined thickness.

  In the net, an approaching pest touches the thread 1 when trying to pass through the mesh 3. Therefore, the pests are reliably controlled.

  As a thing which has the form of a net, a mosquito net, a screen door, an insect net, etc. are mentioned, for example, The form of a mosquito net is especially preferable.

  Furthermore, as the form of the control material of the present invention, film, sheet, paper, wallpaper, cloth, curtain, flooring, packing material, hose, tape, tube, pipe, bag, tent turf, warmth, electric wire, cable, Logistics materials such as sheaths, threads, ropes, ropes, filters, shoes, bags, clothing, electronic equipment, electrical equipment, home appliances, sports equipment, office equipment, vehicle equipment, transport equipment, containers, and cases; Items used for residential parts; pet houses such as kennels, mats, sheets, collars, tags, etc., including humans; dogs, cats, birds and other pets; cows, pigs, sheep, birds Used as an insect repellent product for livestock such as; The film or sheet can be formed into a desired shape by vacuum forming or the like.

(6) Effect According to the control material of the present invention, it is possible to control harmful insects such as harmful insects and harmful mites. Specific examples of such pests include the following.
Anopheles mosquitoes such as An. Gambiae, An. Arabiensis, An. Funestus, An. Melas, An. Minimus, An. Dirus, An, stephensi, An. Sinensis, An. Anthropophagus, etc.
Cux mosquitoes, Cx.pipiens pipiens, Cx.quinquefasciatus, Cx.pipiens pallens, Cx.pipiens f. Molestus, Cx.restuans, Cx.tarsalis, Cx.modestus, Cx.tr
itaeniorhynchus etc.
Aedes aegypti, Ae. Albopictus, Ae. Japonicus, Ae. Vexans, etc., which are mosquitoes of the genus Aedes.
・ Flies, flies, flyfish, sand flies, tuna flies, tsetse flies, chironomids, fleas, lices, bed bugs, sand turtles, ants, termites, cockroaches, ticks, ticks, etc. .

In addition, when a pest contacts the control material of this invention, specifically, the following control effects will be exhibited.
(1) Blood sucking by pests can be prevented.
(2) Pests can be sterilized.
(3) It can inhibit hatching of pest eggs.
(4) It is possible to inhibit the second and subsequent blood sucking of pests.
(5) Pest life can be shortened.
(6) The population density of pests can be reduced by the effects described above.
(7) Propagation of pathogens to human livestock can be prevented by the blood sucking inhibitory effect described above.
(8) When a pest mediates an infectious disease, the above-mentioned effects can dramatically reduce the pest's ability to transmit infectious diseases. Therefore, when the pest control material of the present invention is used throughout a predetermined area, infectious diseases in the area can be eradicated.
(9) The above-described effects are excellent even for pests having kdr factor and / or pyrethroid resistance of metabolic system.
(10) It can control not only human infections but also livestock infections.

  Examples of the control material for controlling adult mosquitoes of the present invention will be described below. The present invention is not limited to these examples.

[Example 1]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of permethrin, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A1. A polyethylene screw is melted at 150 ° C. in a single screw extruder, and powder A1 is added so as to be 27.4 parts by weight with respect to 62 parts by weight of polyethylene, and the melt-kneaded product is extruded into a strand from a die. After cooling with water, it was cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene were stirred and mixed. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net A1. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

  The net A1 was immersed in an alcohol solution of 0.1% w / v pyriproxyfen for 1 hour, taken out, and allowed to air dry for 24 hours.

[Example 2]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of permethrin, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder A1. Pyriproxy, which was obtained by adding 27.4 parts by weight of powder A1 to 62 parts by weight of polyethylene, kneading, and further heat-melting to 55 ° C. Using an infusion pump, add fen to 5.0 parts by weight, knead, extrude the melt-kneaded product from the die into strands, cool with water, cut with a pelletizer, and add cylindrical master batch pellets. obtain.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net B1. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

[Example 3]
A monofilament is spun from polyethylene at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net C1. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of permethrin, 5.0 parts by weight of pyriproxyfen, and 3.0 parts by weight of propylene glycol are dissolved in 87.0 parts by weight of alcohol to obtain a spray liquid A1.

  Then, the spray liquid A1 is sprayed on the net C1, and air-dried for 24 hours.

[Example 4]
A multifilament is spun from polyester at a processing temperature of 260 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net D1. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of permethrin, 5.0 parts by weight of pyriproxyfen, and 3.0 parts by weight of propylene glycol are dissolved in 87.0 parts by weight of alcohol to obtain a spray liquid A1.

  And spray liquid A1 is sprayed on the net | network D1, and it is air-dried for 24 hours.

[Example 5]
10.0 parts by weight of amorphous silica, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder H1. A Pyriproxy that melts polyethylene at 150 ° C in a single screw extruder, adds powder H1 to 17.4 parts by weight with respect to 72 parts by weight of polyethylene, kneads, and heat melts to 55 ° C. Using an infusion pump, add fen to 5.0 parts by weight, knead, extrude the melt-kneaded product from the die into strands, cool with water, cut with a pelletizer, and add cylindrical master batch pellets. obtain.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net H1. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  The net H1 is immersed in an isopropanol solution of permethrin 0.1% w / v for 1 hour, taken out, and then air-dried for 24 hours.

[Example 6]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of a pyrethroid compound selected from the group consisting of permethrin, deltamethrin, and alpha cypermethrin, 7.0 parts by weight of zinc stearate, and BHT 0.4 Part by weight is stirred and mixed with a super mixer to obtain powder A2. A polyethylene screw is melted at 150 ° C. in a single screw extruder, and the powder A2 is added and kneaded so as to be 27.4 parts by weight with respect to 62 parts by weight of polyethylene, and the melt-kneaded product is extruded into a strand form from a die. After water cooling, it is cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net A2. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  Then, the net A2 is immersed in an alcohol solution of metoprene 0.1% w / v for 1 hour, taken out, and air-dried for 24 hours.

[Example 7]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of a pyrethroid compound selected from the group consisting of permethrin, deltamethrin, and alpha cypermethrin, 7.0 parts by weight of zinc stearate, and BHT 0.4 Part by weight is stirred and mixed with a super mixer to obtain powder A2. To a place where polyethylene was melted at 150 ° C. with a single screw extruder, powder A2 was added to 27.4 parts by weight with respect to 62 parts by weight of polyethylene, kneaded, and further methoprene heated to 55 ° C. was melted. Using an infusion pump, the mixture is kneaded so as to be 5.0 parts by weight, and the melt-kneaded product is extruded into a strand form from a die, cooled with water, and then cut with a pelletizer to obtain a cylindrical master batch pellet.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net B2. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

[Example 8]
A monofilament is spun from polyethylene at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net C2. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of one pyrethroid compound selected from the group consisting of permethrin, deltamethrin, and alpha cypermethrin, 5.0 parts by weight of methoprene, and 3.0 parts by weight of propylene glycol are mixed with alcohol 87.0. Dissolve in parts by weight to obtain spray liquid A2.

  Then, the spray liquid A2 is sprayed on the net C2, and air-dried for 24 hours.

[Example 9]
A multifilament is spun from polyester at a processing temperature of 260 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net D2. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of one pyrethroid compound selected from the group consisting of permethrin, deltamethrin, and alpha cypermethrin, 5.0 parts by weight of methoprene, and 3.0 parts by weight of propylene glycol are mixed with alcohol 87.0. Dissolve in parts by weight to obtain spray liquid A2.

  Then, the spray liquid A2 is sprayed on the net D2, and air-dried for 24 hours.

[Example 10]
10.0 parts by weight of amorphous silica, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder H2. Pyriproxy which melted polyethylene at 150 ° C in a single screw extruder, kneaded by adding powder H2 to 17.4 parts by weight with respect to 72 parts by weight of polyethylene, and further heated and melted to 55 ° C Using an infusion pump, add fen to 5.0 parts by weight, knead, extrude the melt-kneaded product from the die into strands, cool with water, cut with a pelletizer, and add cylindrical master batch pellets. obtain.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net H2. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  Then, the net H2 is immersed in an alcohol solution of 0.1% w / v of one pyrethroid compound selected from the group consisting of permethrin, deltamethrin, and alpha cypermethrin for 1 hour, taken out, and then air-dried for 24 hours.

[Example 11]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of deltamethrin or alpha cypermethrin, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are mixed by stirring with a super mixer, and powder A3 Get. A polyethylene screw is melted at 150 ° C. in a single screw extruder, and the powder A3 is added so as to be 27.4 parts by weight with respect to 62 parts by weight of polyethylene, and the melt-kneaded product is extruded into a strand form from a die. After water cooling, it is cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net A3. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  Then, the net A3 is immersed in an alcohol solution of 0.1% w / v pyriproxyfen for 1 hour, taken out, and air-dried for 24 hours.

[Example 12]
10.0 parts by weight of amorphous silica, 10.0 parts by weight of deltamethrin or alpha cypermethrin, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are mixed by stirring with a super mixer, and powder A3 Get. Pyriproxy, which is obtained by adding 27.4 parts by weight of powder A3 to 62 parts by weight of polyethylene, kneading, and further heating and melting to 55 ° C. Using an infusion pump, add fen to 5.0 parts by weight, knead, extrude the melt-kneaded product from the die into strands, cool with water, cut with a pelletizer, and add cylindrical master batch pellets. obtain.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net B3. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

[Example 13]
A monofilament is spun from polyethylene at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net C3. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of deltamethrin or alpha cypermethrin, 5.0 parts by weight of pyriproxyfen, and 3.0 parts by weight of propylene glycol are dissolved in 87.0 parts by weight of alcohol to obtain a spray liquid A3. .

  Then, the spray liquid A3 is sprayed on the net C3 and air-dried for 24 hours.

[Example 14]
A multifilament is spun from polyester at a processing temperature of 260 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net D3. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  On the other hand, 5.0 parts by weight of deltamethrin or alpha cypermethrin, 5.0 parts by weight of pyriproxyfen, and 3.0 parts by weight of propylene glycol are dissolved in 87.0 parts by weight of alcohol to obtain a spray liquid A3. .

  Then, the spray liquid A3 is sprayed on the net D3 and allowed to air dry for 24 hours.

[Example 15]
10.0 parts by weight of amorphous silica, 7.0 parts by weight of zinc stearate, and 0.4 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder H3. A Pyriproxy that melts polyethylene at 150 ° C in a single screw extruder, adds powder H3 to 17.4 parts by weight with respect to 72 parts by weight of polyethylene, kneads, and further heats and melts to 55 ° C. Using an infusion pump, add fen to 5.0 parts by weight, knead, extrude the melt-kneaded product from the die into strands, cool with water, cut with a pelletizer, and add cylindrical master batch pellets. obtain.

Next, 20.0 parts by weight of the obtained master batch pellets and 80.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net H3. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  Then, the net H3 is immersed in an alcohol solution of deltamethrin or alpha cypermethrin 0.1% w / v for 1 hour, taken out, and then air-dried for 24 hours.

[Example 16]
7.0 parts by weight of permethrin, 5.0 parts by weight of zinc stearate, and 0.3 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder A4. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted in a single screw extruder at 150 ° C., powder A4 was mixed with 87.7 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, the mixture is kneaded so as to be 12.3 parts by weight, and the melt-kneaded product is extruded into a strand from a die, cooled with water, and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net E1. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  The net E1 is then immersed in an alcohol solution of 0.1% w / v pyriproxyfen for 1 hour, taken out, and air-dried for 24 hours.

[Example 17]
7.0 parts by weight of permethrin, 5.0 parts by weight of zinc stearate, and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A4. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted at 150 ° C. in a single screw extruder, powder A4 was mixed with 84.2 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, kneading was added to 12.3 parts by weight, and further, pyriproxyfen heated and melted to 55 ° C. was added and kneaded to 3.5 parts by weight using an infusion pump. The melt-kneaded product was extruded from a die into a strand, cooled with water, and then cut with a pelletizer to obtain a cylindrical master batch pellet.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F1. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Example 18]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT are stirred and mixed with a super mixer to obtain powder H4. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted in a single screw extruder at 150 ° C., 91.2 parts by weight of powder H4 was mixed with a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, kneading was added to 5.3 parts by weight, and pyriproxyfen heated and melted at 55 ° C. was added to the kneading with an infusion pump to 3.5 parts by weight. The melt-kneaded product is extruded into a strand from a die, cooled with water, and then cut with a pelletizer to obtain a cylindrical master batch pellet.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene are stirred and mixed. Next, monofilaments are spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn is knitted so as to form a large number of meshes, thereby producing a net H4. The mesh size is set so that the number of holes per 6.45 cm ² is 100.

  The net H4 is immersed in an isopropanol solution of permethrin 0.1% w / v for 1 hour, taken out, and then air-dried for 24 hours.

[Example 19]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted at 150 ° C. in a single screw extruder, powder A5 was mixed with 84.2 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, a 2: 1 mixture of permethrin and pyriproxyfen, which was kneaded in an amount of 5.3 parts by weight and heated and melted at 55 ° C., was added to 10.5 parts by weight using an infusion pump. In addition, the mixture was kneaded and the melt-kneaded product was extruded from a die into a strand shape, cooled with water and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F2. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Example 20]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted in a single screw extruder at 150 ° C., powder A5 was mixed with 87.7 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, a 1: 1 mixture of permethrin and pyriproxyfen, which was kneaded in an amount of 5.3 parts by weight and heated and melted to 55 ° C., was converted to 7.0 parts by weight using an infusion pump. In addition, the mixture was kneaded and the melt-kneaded product was extruded from a die into a strand shape, cooled with water and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F3. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Example 21]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted at 150 ° C. in a single screw extruder, powder A5 was mixed with 84.2 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, a 1: 1 mixture of permethrin and pyriproxyfen, which was kneaded in an amount of 5.3 parts by weight and heated and melted to 55 ° C., was added to 10.5 parts by weight using an infusion pump. In addition, the mixture was kneaded and the melt-kneaded product was extruded from a die into a strand shape, cooled with water and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F4. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Example 22]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted at 150 ° C. in a single screw extruder, powder A5 was mixed with 84.2 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, a 1: 2 mixture of permethrin and pyriproxyfen, which was kneaded in an amount of 5.3 parts by weight and heated and melted to 55 ° C., was added to 10.5 parts by weight using an infusion pump. In addition, the mixture was kneaded and the melt-kneaded product was extruded from a die into a strand shape, cooled with water and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F5. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Example 23]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted at 150 ° C. in a single screw extruder, powder A5 was mixed with 87.2 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, a 2: 1 mixture of permethrin and pyriproxyfen, which was kneaded to 5.3 parts by weight and heated and melted to 55 ° C., was added to 7.5 parts by weight using an infusion pump. In addition, the mixture was kneaded and the melt-kneaded product was extruded from a die into a strand shape, cooled with water and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net F6. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Comparative Example 1]
5.0 parts by weight of zinc stearate and 0.3 parts by weight of BHT were stirred and mixed with a super mixer to obtain powder A5. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted in a single screw extruder at 150 ° C., powder A5 was mixed with 87.7 parts by weight of a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. Then, permethrin, which is kneaded by adding to 5.3 parts by weight and further heated and melted to 55 ° C., is added and kneaded to 7.0 parts by weight using an infusion pump. The melt-kneaded material was extruded into a strand shape from the above, cooled with water, and then cut with a pelletizer to obtain cylindrical master batch pellets.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net G1. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Comparative Example 2]
Zinc stearate 5.0 parts by weight and BHT 0.3 parts by weight were stirred and mixed with a super mixer to obtain powder H4. To a place where a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer was melted in a single screw extruder at 150 ° C., 84.2 parts by weight of powder H4 was mixed with a 3: 2 mixture of polyethylene and ethylene-methyl methacrylate copolymer. In addition, kneading was added to 5.3 parts by weight, and pyriproxyfen heated and melted to 55 ° C. was added to the kneading with an infusion pump to 10.5 parts by weight. The melt-kneaded product was extruded from a die into a strand, cooled with water, and then cut with a pelletizer to obtain a cylindrical master batch pellet.

Next, 30.0 parts by weight of the obtained master batch pellets and 70.0 parts by weight of polyethylene were mixed with stirring. Next, monofilaments were spun from the obtained mixture at a processing temperature of 240 ° C. Then, the obtained resin yarn was knitted so as to form a large number of meshes, thereby producing a net G2. The mesh size was set so that the number of holes per 6.45 cm ² was 100.

[Test Example 1]
From the control material which has the net form of Examples 19, 21, 22 and Comparative Examples 1 and 2, sections of 25 cm × 25 cm were cut out as test samples. Each section was placed in a 900 ml glass bottle, and the drug on the surface of the section was washed thoroughly with 500 ml of acetone. Each section was then stored at 30 ° C. for 1 day and exposed to anopheles albimanus for 3 minutes based on the standard WHO corn method described in the following references. After exposure, adult anopheles were placed in observation plastic cups (200 ml) and the number of individuals knocked down 60 minutes after exposure was determined. Here, knockdown refers to a state in which an adult is ascended. The results are shown in Table 1.

(References)
WHOPES (2005), Guidelines for laboratory and field testing of long-lasting insecticidal mosquito nets, WHO / CDS / WHOPES / GCDPP / 2005.11 Geneva, WHO.

  As described above, the control material of the present invention exhibited an excellent control effect against adult mosquitoes.

  Since the control material for controlling an adult mosquito of the present invention has an excellent control effect against an adult mosquito, its industrial utility value is great.

    1 thread 3 mesh

Claims (4)

  A control material for controlling adult mosquitoes, characterized in that it retains permethrin and pyriproxyfen by a thermoplastic resin and has a net shape. The mesh size of the net is in the range of 2 to 4 mm.
A control material for controlling the adult mosquito according to claim 1. The net is a mosquito net,
A control material for controlling the adult mosquito according to claim 1 or 2.   A method for controlling adult mosquitoes, comprising using the control material for controlling adult mosquitoes according to any one of claims 1 to 3.

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