ITTO20010760A1 - COMPOSITION OF PESTICIDE RESIN. - Google Patents

Description

DESCRIPTION of the industrial invention entitled; "Pesticide resin compositions",

DESCRIPTION

Technical field of the invention

The present invention relates to pesticide resin compositions and processes for the control of harmful insects.

Background of the invention

Various neonicotinoid compounds such as imidacloprid are well known as compounds with pesticidal activity, USP 5,532,365 describes as pesticidal compound l-methyl-2-nitro-3- [(3-tetrahydrofuryl) methyl] guanidine. USP 5,532,365 discloses formulations of said pesticide compound for use in mass agricultural techniques.

Pet collars in which a pesticidal compound such as permethrin, phenothrin, diazinon, dichlorvos and propoxur is supported on polyvinyl chloride, are already marketed. Polyvinyl chloride, however, is not suitable for uses in such pet collars.

Summary of the invention

The present invention provides pesticidal resin compositions and methods for pest control.

Detailed description of the invention

The pesticidal resin compositions of the present invention involve a polyolefin resin and an active ingredient as a pesticide. The active ingredient as a pesticide used in the present invention is 1-methyl-2-nitro-3 - [(3-tetrahydrofuryl) methyl] guanidine, which is described in USP 5,532,365.

Examples of polyolefin resin include an α-olefin homopolymer such as polyethylene and polypropylene; a-olefin copolymers; copolymers consisting of a cyclic olefin; ethylene copolymers and a carbonate derivative having an ethylenically unsaturated bond such as an ethylene methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer and ethylene-vinyl acetate-methyl methacrylate copolymer and the like. The α-olefin copolymers typically consist of different olefinic units, with more specific examples of such a-olefin copolymers comprising a propylene-butene copolymer; an ethylene-aolefin copolymer such as an ethylene-propylene copolymer, an ethylene-butene copolymer, an ethylene-4-methyl-1-pentene copolymer and an ethylene-hexene copolymer and the like. Preferably, the pesticidal resin compositions use the polyethylene homopolymer or the ethylene α-olefin copolymer as polyolefin resin. More preferably, such pesticidal resin compositions use a low density α-olefin copolymer as the ethylene-a-olefin copolymer. Typically, the polyolefin resin has a melt pour point at 190 ° C of about 1 to 10 g / min, preferably about 1.5 g / min, measured according to the JIS K7210 method, which is well known.

The amount of 1-methyl-2-nitro-3- [(3-tetrahydrofuryl) methyl] guanidine present in pesticidal resin compositions can vary with its use but can be, compared to 100 parts by weight of polyolefin resin, from 0.001 to 100 parts by weight, and more preferably from 0.001 to 20 parts by weight.

Various plasticizers or softeners can also be added to the pesticidal resin compositions such as plasticizers, softeners and the like.

As plasticizer, phthalate esters such as dioctyl phthalate, diisodecyl phthalate and diisoundecyl phthalate, trimellitated esters such as trioctyl trimellitate, tri-2-ethyl trimellitate and tridecyltrimellitate can be mentioned; aliphatic diacid esters such as dioctyl adipate, diisononyl adipate, diisodecyl adipate, dioctylazelate and dioctyl adipate; phosphate esters such as tricresyl phosphate and triphenyl phosphate; epoxy plasticizers such as epoxidized soybean oil, polyester plasticizers and the like; and as softeners, petroleum treatment oils, natural oils such as pine oil and the like may be mentioned.

The amount of plasticizer or softener present in the pesticide resin compositions can be changed according to use, but normally, for 100 parts by weight of polyolefin resin, 120 parts by weight or less are used, more preferably 100 parts by weight or less. , and even more preferably 80 parts by weight or less.

Furthermore, a stabilizer, an anti-caking agent, pigments, dyes, deodorants, chemical flavorings, incense, adhesion agents, anticorrosive agents, can optionally be added to the pesticidal resin compositions, provided that in quantities such as not to compromise the effect of the present invention, lubricants, anti-blocking surfactants and the like.

The pesticidal resin compositions, in the field where the effect of the present invention is not altered, can also optionally contain other active ingredients, for example other active ingredients such as pesticides, repellent ingredients such as pesticides, synergistic products, biocides / fungicides. As other active ingredients such as pesticides, for example, pyrethroid compounds such as allethrin, tetramethrin, prallethrin, phenothrin, resmethrin, cyphenothrin, permethrin, cypermethrin, deltamethrin, tralomethrin, cyfìuthrin, furamethrin, imiprothrin, etvalofenprox bifenthrin and transfluthrin; organophosphorous compounds such as dichlorvos, tetrachlorvinphos, fenthion, chlorpyrifos and diazinon; carbamnate compounds such as propoxur, carbaryl, metoxadiazone and phenobucarb; chitin synthesis inhibitors such as lufenuron, chlorfluazuron, hexaflumuron, diflubenzuron, cyromazine, triflumuron, teflubenzuron, flufenoxuron, fluazuron, triazamate and 1- (2,6-difluorobenzoyl) -3- [2-fluoro-4- (l, l, 2,3, 3,3-hexafluoropropoxy) -phenyl] urea; juvenile hormone analogs such as pyriproxyfen, methoprene, hydroprene and fenoxycarb; neonicotinoid compounds such as acetamiprid, nitenpyram, thiacloprid, thiamethoxam and derivatives of nitroiminohexahydro-1, 3, 5-triazine; compounds of N-phenylpyrazole and the like.

As pesticide repellent ingredients, for example, N, N-diethyl-mtoluamide, limonene, linalool, citronellol, menthol, menton, inochitiol, geraniol, eucalyptol, indoxacarb and caran-3,4-diol and the like can be mentioned.

As synergistic products, for example, products such as PBO, S421, MGK264, IBTA and the like can be mentioned.

The pesticidal resin compositions can be produced by conventional methods, for example by mixing 1-methyl-2-nitro-3- [(3-tetrahydrofuryl) methyl] guanidine into the polyolefin resin. This mixing is normally carried out by adding and mixing the polyolefin resin in a mixer, directly adding the 1-methyl-2-nitro-3- [(3-tetrahydrofuryl) methyl] guanidine or with its dilution in the plasticizer. As a kneader, a Banbury mixer, a kneader, cylinders and the like can for example be mentioned.

The pesticidal resin compositions can be shaped into a pesticidal article if this is desired. The pesticidal article is typically produced from pesticidal resin compositions using conventional methods for molding the resins. For example, the pesticide resin compositions can be shaped to the desired shape normally at a suitable temperature in the range of 70 to 250 ° C, with well known forming methods such as extrusion, injection molding, blow molding, vacuum forming, forming. pressure molding, casting molding, pressure molding, calendering, roll forming and the like

The pesticide articles produced by the pesticide resin compositions can take various forms for pest control. Examples of such forms for pesticide articles include animal collars, earrings, tags, gloves, wallpaper, flooring, agricultural films, nets, fabrics, non-woven fabrics, hoses, sheets, trays and the like.

The pesticidal resin compositions and pesticide articles are effective against various arthroprodes known as harmful agricultural insects, unsanitary insects and animal insects.

Specifically, the hemiptera can be mentioned: Delfacids such as Laodelphax striatellus, Nilaparvata lugens, Sogatella furifera; Deltocephalics such as Nephotettix cincticeps and Nephotettix virescens; Aphidids such as Aphis gossypii and Peach aphidids such as Myzus persicae; Heteroptera such as the Nezara antennata and Rìptortus clavetus; Aleirodidi such as Trialeurodes vaporariorum and Bemisi argentifolii; ladybirds such as Aonidiella aurantii, Comstockaspis perniciosa, Unaspis citri, Ceroplastes rubens and Icerya coersi; Tingids, Psylids and the like;

Lepidoptera: Pyralids such as Chilo suppressalis, Cnaphalocrocis medinalis, Notarcha derogata and Piodia interpunctella; Noctuids such as Spodoptera litura, Pseudaletia separated; the species Trichoplusia, Heliothis and Helicoverpa; Pieridi as Pieris rapae, crucivora; Tortricides such as Adoxofidi, Heteroneurs such as Grapholita molesta and Cydia pomonella; Carposinids such as Carposina niponesnsis; Lionetidae such as Lyonetia sp; Limantrids such as Lymantria sp and Euproctis sp; Hyponomeutidae such as Plutella xylostella; Gelechids such as Pectinophora gossypielai Arctidi such as Hyphantria cunea; Heterocera such as Tinea pellionella and Tineola bisselliella and the like;

Diptera: Culicidae such as Culex pipiens pallens, Culex tritaeniorhynchus and Culex quinquefasciatus; Aedes sp. such as Aedes aegypti and Aedes albopictus; Anopheles sp. such as Anopheles sinensis; Chironomids; Muscids such as Musca domestica and Muscina stabulassi Calliforidi; Sarcophagids; Fannia canicularis; Antomides such as Delia platura and Delia antiqua; Tephritides; Drosophilids; Psychodides; Black flies; Tabanids; Stomoxides; Agromixides and the like;

Beetles such as Diabrotica virgifera and Diabrotica undecimpunctata howardi; Scarabeids such as Anomala cuprea and Anomala rufocuprea; Weevils such as Sithopilus zeamais, Lissorhoptrus oryzophilus and Collosobruchus chinensisi Tenebrionids such as Tenebrio molitor and Tribolium castaneumt Chrysomelids such as Aulacophora Femoralis, Phyllotreta striolata and Leptinotarsa decemlineata; Anobids such as Epilachna, sp, such as Epilachna vigintioctopunctata; Lictids; Bark beetles; Cerambicidae, Beetles such as Paederus fuscipes and the like;

Cockroaches such as Blattella germanica; Periplaneta fuliginosai American Periplaneta; Periplaneta brunnea, Blatta orientalis and the like;

Thrips such as Thrips palmi and Thrips tabaci;

Hymenoptera such as Formicidi, Vespidi, Betilidi, Tentredinidi such as Athalia japonica and the like;

Orthoptera such as Grillotalpids, Acridids and the like;

Siphonacteria such as Ctenocephalides felis; Ctenocephalides canis; Pulex irritane; Xenopsylla cheopis and the like;

Anopluri Like Pediculus humanus corporisi Pthirus pubis; Haematopinus eursysternus; Daalmainia ovis and the like;

Isoptera such as Reticulitermes speratus; Coptotermes formosanus and the like;

Acarids such as Tetranichids such as Tetranychus urticae, Panonychus citri and Orgonicus sp .; Eriophids such as Aculops pelekassi; Tarsonemids such as Polyphagotarsonemus lactus; Tenuipalpids; Tucherellidae; Ixodids such as Haemaphysalis longicornis, Haemaphysalis flava, Dermacentor taiwanicus, Ixodes ovatus, Ixodes persulcatus and Boophilus microplus; Acarids such as Tyrophagus putrescentiae; Dermanissids such as Dermatophagoides farinae and Dermatophagoides pteronyssinus; Cheiletids such as Cheyletus eruditus, Chelacaropsis malaccensis and Cheyletus moorei; Dermanyssus sp. and similar;

Roundworms such as Pratylenchus coffeae; Pratylenchus fallaxi Heterodera glycines; Globodera rostochiensis; Meloidogyne hapla and the like;

Spiders such as Chiracanthium japonicum; Latrodectus hasseltii and the like;

Chilopods such as Thereuonema hilgendorfii Scolopendra subspinipes are similar;

Diplopods such as Oxidus gracilis; Nedyopus tambanus and the like;

Isopods such as Armadillidium vulgare and the like; Gastropods such as marginatus, Limax flavus and the like.

It is preferable to use pesticidal resin compositions to control household pests such as flies, mosquitoes, cockroaches, ticks, fleas, lice, termites and the like.

For example, when controlling animal ectoparasites, the pesticidal resin compositions may take the form of animal collars, animal earrings, and the like. When controlling cockroaches, ticks, ants, mites, or thrips, the pesticidal resin compositions may have a sheet conformation. When flying insects such as flies, mosquitoes and the like are to be repelled, the pesticide resin compositions can be striped to form a kind of pesticide net.

To achieve effective residual control of pests, the pesticide resin composition is applied in an area that constitutes the insect habitat, in such cases, the pesticide resin composition is applied in quantities from 0.1 to 400 mg of l -methyl-2-nitro-3 - [(3-tetrahydrofuryl) methyl] guanidine for 1 cm <3> and for a time from 1 to 10000 days.

When used as a collar for animals, ectoparasites such as fleas can be controlled by attaching the collar to the neck of an animal such as a dog, cat and the like. In such cases, the pesticide resin compositions are shaped to have a width of about 1 or 2 cm and a length that is greater than the circumference of the animal's neck.

When using animal earrings, ectoparasites such as flies and the like can be controlled by attaching a plate of pesticide articles to the animal's ear such as a cow, with a surface area of approximately 10 to 200 cm <2>.

When using pesticide sheets, domestic insects such as cockroaches can be controlled by spreading the flat shape of the pesticide item film cut to appropriate size onto the kitchen floor.

Also, when using pesticide sheets, termites can be prevented from infecting a home by making openings under the floor of the house into which the flat film form of the pesticide item cut to suitable size is introduced.

By using pesticide nets, flies can be prevented from entering the home by producing a composition of pesticidal resin in the form of strings, which can be worked into forming a net or door curtain or Japanese fly net and using the net as a such.

Examples

Formulation example 1

Five (5.0) g of 1-methyl-2-nitro-3 - [(3-tetrahydrofuryl) methyl] guanidine are added to ultra-low density polyethylene (Sumitomo Chemical Company, EXCELLEN EUL430; melt flow at 190 ° C 4 , 0 g / min) to obtain a mixture of 100 g. Using a plastograph the mixture is melted for 5 minutes at 150 ° C and 150 rpm, obtaining a composition of pesticidal resin. The pesticide resin composition is molded by pressing at 150 ° C for 10 minutes, producing a 1mm thick sheet (formulation 1).

Formulation example 2

Ten (10) g of 1-methyl-2-nitro-3 - [(3-tetrahydrofuryl) methyl] guanidine and 3990 g of ultra low density polyethylene (Suinitomo Chemical Company, SU-MIKATHENE F208-1;. 190 ° C 1.5 g / min) are mixed for 10 minutes with a Banbury mixer (Nippon Roll MFG. Co., LTD) obtaining a master batch of 1-methyl-2-nitro-3 - [(3-tetrahydrofuril) met il] guanidine. A 5-fold dilution of the master batch with the aforementioned polyethylene is subsequently prepared. The above dilution is then used to produce a pesticide film having a thickness of 180 μm at a resin temperature of 180 ° C, with an air blowing film forming machine equipped with a circular matrix (Formulation 2).

Comparative example 1

Twenty-one (21) g of di-n-butyl adipate, 9.1 g of diethylhexyl phthalate and 2.3 g of epoxidized soybean oil are mixed with 10.0 g of 1-methyl-2-nitro-3- [(3- tetrahydrofuryl) methyl] guanidine to 56.7 g of poly (vinyl chloride) (Shin Dai-Ichi Vinylchloride Corporation, product trade name ZEST 1300Z) to form a 100 g mixture. Using a plastograph the mixture is melt kneaded for 5 minutes at 150 ° C and 50 rpm, obtaining a comparison resin composition. The comparison resin composition is pressure molded at 150 ° C for 10 minutes to obtain a sheet with a thickness of 1 mm (comparison formulation 1).

Comparative example 2

Using only the ultra-low density polyethylene identical to that of Example 2, a film having a thickness of 180 μτη is prepared, with a procedure similar to that of Example 2 (formulation 2)

Test example 1

After the surface of Formulation 1 produced in Formulation Example 1 has been rubbed 5 times with a laboratory paper napkin, Formulation 1 is stored at room temperature (25 ± 2 ° C). Subsequently the rubbing of the cleaned surface is repeated continuously every 2 or 3 days for 86 days.

After said 86 days of rubbing, 10 common adult mosquitoes are anesthetized with carbon dioxide and placed on the surface of formulation 1. A lid with a diameter of 3 cm and a height of 1 cm is placed on the mosquitoes to keep the adult mosquito common to contact with the resin surface. After 1 h, all adult mosquitoes are anesthetized and transferred to a sanitary container. Food (5% sugar water) is provided for the mosquitoes and mortality is examined the next day.

The surface of the comparative formulation 1 obtained in the comparative example 1 is then subjected to the continuous rubbing treatment for 86 days similar to that of the previous formulation 1 and the mortality on mosquitoes is examined with a similar treatment.

Table 1

Test example 2

Formulation 1 in which the surface has been rubbed for 86 days as in Test Example 1 is cut to a width of 1 cm and a length of 15 cm. After cutting, formulation 1 is attached to the inner surface of a commercially available flea repellent collar (which does not contain pesticidal active ingredient) which is attached to a cat's neck (weighing 3 kg). After 2 weeks of placing the collar, the cat is infested with 30 adult cat fleas. Then, 10 days after the infestation, the total number of fleas present is checked using a flea comb.

Furthermore, the comparative formulation 1, the surface of which has been treated by rubbing for 86 days as in Test Example 1, is fixed to the cat in the same way as above, and the number of fleas present is checked.

The test is repeated once. The results are shown in Table 2.

Table 2

Test example 3

Soil is introduced to the bottom of an 81 cm plastic bucket, then 500 termites are introduced. After adding a small amount of water, a 10 cm long, 6 cm wide and 10 cm high concrete block is placed on the ground in the 8 1 plastic bucket. The formulation film 1 formulation film comparative 2 is then cut to a thickness of about 7 cm. In the portion 3 cm above the soil surface, the film of Formulation 1 or Comparative Formulation 2 is attached to the concrete block to each of the four vertical surfaces of the block, so that the film covers the upper portion of its four vertical surfaces . Wood is placed on top of the concrete block as food. After a month, the mortality of the termites, the presence of damage from feeding on said sheet and the presence of paths formed by the termites on the surface of the concrete block are checked.

Table 3

These examples show that the pesticidal resin compositions of the present invention ensure an excellent pesticidal effect on harmful insects, which remains stably for a long period of time.

Claims (6)

CLAIMS A pesticidal resin composition, comprising a polyolefin resin and a pesticide effective amount of 1-methyl-2-nitro-3 - [(3-tetrahydrofuryl) methyl] guanidine. 2. A pesticide formation according to claim 1, wherein said pesticide composition is used for an animal collar. 3. A pesticidal resin composition according to claim 1, wherein said pesticidal resin composition is used for an earring. A pesticidal resin composition according to claim 1, wherein said pesticidal resin composition is used for a pesticidal sheet. 5. A pesticidal resin composition according to claim 1, wherein the polyolefin resin is an ethylene-a-olefin heterocopolymer, 6. A method for controlling pests, wherein the pesticidal composition according to claim 1 is applied to an area where the pests are found.