JP2003137711A - Ant-repelling material and method for repelling ant by using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an effective ant-repelling material having an immediately- effective lethal effect and having such a secondary effect as capable of exterminating nests of termites by a dietary exchange, and to provide a method for repelling ants by using the same. SOLUTION: This ant-repelling material is obtained by making a silafluophen contained in a spray liquid or in a plastic base material or a building material in an amount of 0.02-0.5 wt.% as an active ingredient concentration based on the total amount of the material. The method for repelling the ants comprises using the material. The plastic base material is preferably made of an ethylene- vinyl acetate copolymer or an expanded plastic heat-insulating material. An electrical wire, an adhesive for a laminate, and a concrete foundation are each exemplified as the building material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termite control material containing silafluofene and a method for controlling termite using the termite control material.

[0002]

2. Description of the Related Art In recent years, the damage of termites and the like that damage buildings and electric wires has become a problem. In order to prevent the feeding damage, the method of spraying the termiticide on the soil under the floor of the house, the surrounding soil, or the wood part, or treating the terminator on the building material, the attached plastic base material, the electric wire coating material, etc. in advance is more conventional. Previously, organochlorine pesticides such as chlordane, dieldrin, and Milex were mainly used as ant control ingredients, but they were banned due to environmental pollution and safety. Organophosphorus agents such as chlorpyrifos, fenitrothion, and foxime, which have been introduced as alternative agents, also have many problems, and recently they are moving to pyrethroid insecticides, organosilicon insecticides, nicotinyl insecticides, and the like. By the way, as the action and effect required for the termite control material, in addition to the immediate lethal effect, there is a so-called secondary effect that eradicates the termite nest by exchanging food. Among the various insecticides described above, for example, in the case of pyrethroid insecticide,
In general, it is only fast-acting and does not have a food poisoning effect.
Secondary effects cannot be expected.

On the other hand, silafluophene, which is one of the organosilicon insecticides, is a compound represented by the chemical name: (4-ethoxyphenyl) [3- (3-phenoxy-4-fluorophenyl) propyl] dimethylsilane. so,
Chinese Patents CN1025501C, CN1032005
It is described in C and CN1044661C that they have a moderate fast-acting property and a food poisoning action, and that they show a high insecticidal effect against various agricultural and horticultural harmful insects such as aphids, planthoppers and stink bugs. However, regarding termites, "Yamato termites" is only mentioned in the list of numerous pest names. Silafluofen is safe for humans and animals, has low toxicity to fish, and is excellent in chemical stability (light, in soil, in alkaline regions, etc.). It has been widely used as a wood, but no reference has been made to an effective termite control material and a method for controlling termites that make the most of the lethal and secondary effects of silafluofene.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the problems of the conventional termite control materials, and not only the safety and chemical stability, but also the fast-acting lethal effect and dietary termite are used. It is an object of the present invention to provide an effective termite-preventing material having a secondary effect of eradicating a nest of a bird and its termite-preventing system.

[0005]

Means for Solving the Problems and Embodiments of the Invention In order to solve the above problems, the inventors of the present invention have conducted extensive studies and as a result, by using an antitermite containing silafluofene in a specific concentration range, The present invention has been completed by finding that the object can be achieved.

That is, according to the invention of claim 1, silafluofene is used as a concentration of its active ingredient in a spray solution, or in a plastic substrate or a building material in an amount of 0.
The present invention relates to a termite-preventing material, which is characterized by containing 02 to 0.5% by weight.

Silafluofen used in the termite-preventing material of the present invention has an appropriate rapid-acting lethal effect and a secondary effect of eradicating termite nests by exchanging food, and therefore 0.02.
Mandatory to be used at a concentration of ˜0.5% by weight.
Dosage forms of ant-preventive materials include emulsions, oils, wettable powders, suspensions,
In addition to spraying agents such as water solvents and aerosols, they can be used by being contained in plastic base materials and building materials. The more preferable range of the above-mentioned use concentration is 0.05 ~ 0.2 wt%, while
When mixed in a plastic base material or building material, the content is 0.05 to 0.3% by weight based on the total weight.

Any of the above-mentioned sprays can be prepared by a conventional method, and examples of solid carriers include fine powders and powders of clays (kaolin, bentonites, etc.) and talc. As the liquid carrier, water, alcohols, aromatic hydrocarbons (eg toluene, xylene etc.), aliphatic hydrocarbons (eg kerosene, kerosene etc.), esters, glycol ethers, nitriles etc. can be used. Next, examples of the surfactant include alkyl sulfates, alkyl sulfonates, polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, and polyhydric alcohol esters. In addition, a fixing agent or a dispersant such as casein, gelatin, starch powder, CMC, polyvinyl alcohol, etc. may be appropriately used. The spraying agent thus prepared is diluted with water if necessary, and then sprayed or applied to the soil under the floor of the house or surrounding soil, or applied or pressurized to wood or plywood.

Silafluofen has high thermal stability and, in contrast to pyrethroid insecticides and organophosphorus insecticides, exhibits extremely high stability in the alkaline region. Therefore, plastic base materials, electric wires, adhesives for plywood, (EN) Provided is a particularly useful termite-preventing material in a construction material application in which a termite-preventing component is mixed and dispersed under alkaline conditions such as concrete foundation. Examples of the plastic substrate include, but are not limited to, a film made of an ethylene acetic acid copolymer and a plastic foam insulation material such as expanded polystyrene or expanded polyurethane.

As the material for the electric wire coating material, synthetic resins such as polyethylene resin, vinyl chloride resin, ethylene acetic acid copolymer, nylon resin, and the like, as well as synthetic rubber excellent in flexibility and silicone rubber can be adopted. In mixing and dispersing silafluofene in such a synthetic resin material, a conventionally known method such as a masterbatch method or a kneading method can be applied without any special equipment or technique.

Next, examples of the adhesive for plywood include urea resin, melamine urea co-condensation resin, phenol melamine co-condensation resin, and alkali type phenol resin. The use of resin is increasing. In processing plywood, for example, an emulsion containing silafluofene is mixed with a sizing agent or the like so that the concentration of silafluofene is 0.
The plywood may be coated with the adhesive-type termite proof material of the present invention prepared in an amount of 02 to 0.5% by weight.

Further, it is possible to construct a useful termite-resistant concrete foundation or wall by mixing and dispersing silafluofene in a building material such as mortar or cement. in this case,
Silafluofen is generally applied in the form of an emulsion. For example, if it is contained in concrete in an amount of 0.02 to 0.5% by weight, a sufficient termite-preventing effect can be obtained.

The termite control material of the present invention comprises, in addition to silafluophene, other insecticides, for example, organic phosphorus agents such as chlorpyrifos, fenitrothion, and foxime which may be microencapsulated or encapsulated with cyclodextrin, N.
Carbamate agents such as AC, BPMC and MTMC, pyrethroid agents such as permethrin, cypermethrin, fenvalerate, bifenthrin and etofenprox, nicotinyl insecticides such as imidacloprid and acetamiprid, cyproconazole, 3-iodo-
2-propynyl butyl carbamate, 3-bromo-2,
3-diiodo-2-propenyl ethyl carbonate,
A useful multipurpose composition can also be obtained by appropriately mixing an antiseptic such as IF-1000 and benzalkonium chloride, a repellent, a synergist and the like.

According to a second aspect of the present invention, in the structure of the first aspect, a film made of an ethylene acetic acid copolymer or a plastic foam heat insulating material is used as the plastic substrate.

According to the invention of claim 3, in the structure of claim 1, one kind selected from an electric wire, an adhesive for plywood and a concrete foundation is applied as a building material.

Furthermore, the invention of claim 4 uses the termite control material of claim 1 and exhibits an anticidal action against termites, while termites that have not died carry silafluofene deposits or inclusions to their nests. Disclosed is a method for controlling ants, which is characterized in that a population of individuals directly ingested and / or ingested by diet exchange is killed.

As described above, the termite control material of the present invention obtained by applying to the spraying agent, the plastic base material or the building material has an appropriate fast-acting lethal effect and a secondary effect of eradicating the termite nest by exchanging food. It provides a very effective ant control method.

Next, formulation examples, test examples, and examples will be described in order to further clarify the usefulness of the present invention, but it goes without saying that the present invention is not limited thereto.

Formulation Example 1. 77 parts of kerosene was added to 5 parts of silafluofene, 10 parts of octachlorodipropyl ether, and 8 parts of a polyoxyethylene alkyl ether type surfactant, and this was mixed well and stirred to prepare an emulsion. This emulsion was diluted 50 times with water to obtain the termite control material of the present invention having a silafluofene concentration of 0.1%.

Formulation Example 2. 0.15 parts of Silafluofen,
As a preservative, 0.1 part of cyproconazole was dissolved in kerosene to obtain an anti-termite material of the present invention having a silafluofene concentration of 0.15% in the form of an oil agent to be sprayed as a stock solution.

Formulation Example 3. 0.05% of silafluofen was added to the ethylene acetic acid copolymer and molded into a film to obtain a termite-proof sheet of the present invention.

Formulation Example 4. 0.3% of silafluophene was added to expanded polystyrene and molded into a block plate to obtain the termite-proof material of the present invention in the form of a termite-proof heat insulating material.

Formulation Example 5. A wire covering material made of vinyl chloride resin was impregnated with silafluofene at 0.2% based on the total weight of the covering material to obtain a termite-proof wire form of the present invention.

Formulation Example 6. 0.2% of silafluofen was added to the concrete foundation constituting the base of the house to obtain the termite proof material of the present invention for building materials.

Test Example 1. According to Formulation Example 4, rectangular parallelepiped (7.5 × 7.5 × height 2.5 cm) expanded polystyrene was allowed to contain various concentrations of silafluofene or another active ingredient, and the present invention in the form of a termite insulation material was used. An ant material or a comparative ant control material was prepared. On the soil surface of the breeding tank connected to the main tank in which the nest of the termites is installed, the above-mentioned test ant heat insulating material and chemical-free heat insulating material (rectangular shape: 7.5 × 7.5 × height 2.5c
m) were placed alternately in pairs of two. Further, put bait trees (5 × 5 × 20 cm) so as to cover them, and 28 ± 2 ° C.
It was left in the dark place for 3 days and the feeding damage of the heat insulation material was observed 3 days later, and the nest condition was examined 2 months later.
It was as follows.

[0026]

[Table 1]

As a result of the test, the termite-preventing material of the present invention had little or no food damage by termites on the surface of the termite-preventing material, and it was excellent in termiticide. Furthermore, non-lethal termites carried the silafluofene-containing material to the nest, greatly reducing nest activity. Therefore, it has been clarified that the termite control material of the present invention has an appropriate fast-acting property and a so-called secondary effect, and can effectively control termites. In contrast,
A secondary effect can be expected if the concentration of silafluofene is lower than 0.02% by weight, but this is not preferable because the damage to the termite control material is great, whereas if it exceeds 0.5% by weight, the rapid-acting property is secured, but Had no effect on. Bifenthrin, which is one of the pyrethroid insecticides, and chlorpyrifos, which is one of the organophosphorus agents, had only a rapid effect and no secondary effect could be expected.

Example 1. A silafluofene 5% emulsion prepared according to Formulation Example 1 was diluted 50 times with water to give 0.1%.
A high concentration of the termite control material of the present invention was obtained. The spray solution, was sprayed at a rate of 1m ² per 3? Under the floor wood and soil, as well as the surrounding soil, of the house. As a result, it was possible to completely eliminate the termites on the underfloor xylem in which wandering was recognized, and in a survey 6 months later, the termites brought back silafluofene deposits such as wood chips to the nests, resulting in marked colonies in nearby nests. Inactivity was observed.

Example 2. According to Formulation Example 5, a vinyl chloride resin-made wire coating material was impregnated with 0.15% of silafluofene based on the total weight to obtain a termite-proof wire form of the present invention. When this was buried in the soil and examined three years later, it was found that the termites had not been eaten by the wires, and the activity of the nearby termite nests had completely stopped.

[0030]

INDUSTRIAL APPLICABILITY The present invention provides an efficient termite control material having not only safety and chemical stability, but also a rapid-acting lethal effect and a secondary effect of eradicating termite nests by food exchange, and the same. Provide a method for controlling ant using.

Claims (4)

[Claims] 1. An antitermite characterized by containing 0.02 to 0.5% by weight of silafluofen as a concentration of its active ingredient in a spray solution or in a plastic base material or a building material based on the total weight thereof. Material. 2. The termite proof material according to claim 1, wherein the plastic substrate is a film made of an ethylene acetic acid copolymer or a plastic foam heat insulating material. 3. The termite proof material according to claim 1, wherein the building material is one selected from electric wires, adhesives for plywood, and concrete foundations. 4. A termite-preventing material comprising silafluofene as an active ingredient concentration in a spray solution or in a plastic base material or a building material in an amount of 0.02 to 0.5% by weight based on the total weight thereof. While showing an anticidal action on termites, non-mortal termites carry the silafluofene deposits or inclusions to their nests and ingest them directly and / or
Alternatively, a method for controlling ants is characterized in that a population of ingested animals is killed by dietary exchange.