JP2000136105A - Composition for insect control and insect control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an insecticidal composition capable of controlling a bad influence on human body, safely usable, effective against, insect pests against wood and tatami by making the composition include an antimicrobial and mildewproofing agent, a synthetic resin and a solvent. SOLUTION: This composition comprises (A) an antimicrobial and mildew proofing agent, (B) a synthetic resin and (C) a solvent. Preferably the composition substantially does not contain an insecticidal component for killing insect pests against wood and tatami. A solvent containing a lactic ester such as ethyl lactate, etc., is preferably used as the component C. For example, preferably the composition comprises 1-10 wt.% of the component A such as 2-(4- thiazolyl)benzimidazole, etc., 5-60 wt.% of the component B and >=10 wt.% of the component C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to suppress harm to human bodies and to effectively control insects against wood and tatami mats, particularly termites, bark beetles, leaf bark beetles, chatter beetles and mites. And a method for controlling insects.

[0002]

2. Description of the Related Art Termites, snails and mites have become problems as pests against wood and tatami mats in structures such as houses. For example, for termite control, fungicides that are harmful to the human body, such as organic phosphorus compounds, sulfur compounds, hydrocyanic compounds, and arsenic compounds, have been used.
For example, ethyl paranitrophenyl thiobenzene phosphonate, amidothioate, yellow phosphorus, hydrogen cyanide (hydrocyanic acid gas), diethyl paranitrophenyl thiophosphate, 1,1-dimethyl-4,4-dipyridinium dichloride, diarsenic trioxide , Sodium arsenite, monofluoracetic acid amide, cresol, chlorpicrin, thallium acetate, DDVP (dimethyl dichlorovinyl phosphate) and the like are known. In addition, in normal termite control, a method of diluting these insecticides in an organic solvent and spraying or applying the same is employed.In such a method, the duration of efficacy is not sufficient, and spraying, In reality, adverse effects on the human body due to air diffusion of insecticide components and the like after application are unavoidable. In recent years, environmental issues have been emphasized, and there has been a demand for the development of an insect repellent which suppresses adverse effects on the human body as much as possible with such an insecticide component and an insect repellent method capable of maintaining the insect repellent effect.

[0003] By the way, various compounds which have little effect on the human body have been known as antibacterial and antifungal agents. However, it is not known that a fungicide / fungicide acts effectively on a vermin such as termites, and usually, no fungicide / fungicide is blended with the fungicide.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an insect repellent composition which can be used safely with a reduced adverse effect on the human body and which effectively acts on wood and tatami pests. An object of the present invention is to provide a method for controlling insects using the composition for controlling insects. Another object of the present invention is to provide an insect repellent composition and an insect repellent method that can suppress adverse effects on the human body, are easy to handle, and sufficiently maintain the insect repellent action.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have used ordinary insecticides, which are considered to have a bad effect on the human body. It has been found that, even without such a substance, a vermin-toxic fungicide can control pests such as termites against wood and tatami mats (repellent, etc.). Then, it was confirmed that termites and the like might be killed by the fungicide / fungicide, and the present invention was completed. Termites may be killed by such a fungicidal agent, usually because microorganisms that decompose lignin and cellulose that coexist in the body of the termites are sterilized by the fungicide and the fungicide. It is thought that it can be killed. Therefore, the term “insect repellent” in the present invention generally means a repellent action, but means the above-mentioned insecticidal action.

That is, according to the present invention, there is provided a composition for controlling pests against wood and tatami mats, the composition comprising a fungicide and a fungicide, a synthetic resin, and a solvent. . Further, according to the present invention, there is provided an insect repellent method characterized by contacting and fixing the above-described insect repellent composition to a place including a wood and a tatami in a structure.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The insect-controlling composition of the present invention includes pests against wood and tatami mats, for example, termites (termites (ISOPTERA), termites (Rhinotermitidae)), bark beetles (Scolytidae), leaf fly beetles (Lepidoptera) Lyctidae))
ctidae)), tick (Acari (Acari), Acaridae (Acarida)
e)) a composition for controlling insects, which contains a fungicide / fungicide, a synthetic resin, and a solvent as essential components.

[0008] Bactericidal and fungicides include bacteria, fungi (fungi)
No particular limitation is imposed as long as it inhibits the growth of, or sterilizes. Usually, it is preferable to use those which are not considered to be toxic to the human body. Specifically, 2- (4-thiazolyl) benzimidazole, N, N-dimethyl-N′-
Examples include phenyl-N '-(fluorodichloromethylthio) sulfonamide, 1-((diiodomethyl) sulfonyl) -4-methylbenzene, dichlorofluanid, dichlorophenyl, and mixtures thereof. Also, octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, octadecyltrimethylammonium chloride,
Octadecenyltrimethylammonium chloride, octadecadienyltrimethylammonium chloride,
Dioctyltrimethylammonium chloride, didecyltrimethylammonium chloride, didodecyltrimethylammonium chloride, ditetradecyltrimethylammonium chloride, dihexadecyltrimethylammonium chloride, dioctadecyltrimethylammonium chloride, dioctadecenyltrimethylammonium chloride, dioctadecazi Alkyl methyl ammonium chloride such as enyl trimethyl ammonium chloride can be used. These are commercially available product names "ARQUAD C-50", "AR
QUD S-50 "(manufactured by Lion Akzo Co., Ltd.) or the like can be used. In the insect repellent composition of the present invention,
The blending ratio of the fungicide / fungicide can be appropriately selected depending on the kind of the fungicide / fungicide, and can be usually used in an amount necessary for obtaining the fungicide / fungicide effect. Preferably, it can be blended in the composition in an amount of 1 to 10% by weight, particularly preferably 1.5 to 5% by weight in the composition.

The synthetic resin used in the insect repellent composition of the present invention is a component that acts to fix the insect repellent composition at a site containing wood in a structure and maintain the insect repellent action for a long period of time. Known resins other than vinyl chloride-based oil-based or water-based paints used for products and the like can be used. For example, an epoxy resin, a polyamide resin, an alkyd resin, a vinyl acetate resin, an acrylic resin, a petroleum resin, and the like can be used. When used, they can be mixed as an oily or water-based paint containing a solvent. In addition, it is preferable to use a resin having a water-repellent action for the purpose of preventing peeling or the like after fixing the insect-controlling composition to the object to be coated. For example, silane-based water repellents such as dimethylsilicone oil, methylhydrogenpolysiloxane, and methylphenylsilicone oil (trade name "Tosbarrier" (Toshiba Silicon Co., Ltd., silane-based silicone resin); trade name "Aqua Seal" (Sumitomo) Seika Chemical Co., Ltd., alkylsiloxane resin);
Examples thereof include a mixture of an epoxy resin, a polyamide resin and a solvent (trade name “Chemistop”, manufactured by Mitsui Chemicals, Inc.). In the insect-controlling composition of the present invention, the amount of the synthetic resin that can be fixed to the object to be coated can be appropriately selected according to the type and the like of the synthetic resin.
The compounding of this synthetic resin, when blending paints and commercial products,
Usually 5 to 60% by weight, preferably 10% by weight in terms of synthetic resin.
The range of ５０50% by weight is preferred.

[0010] The solvent to be added to the insect-controlling composition of the present invention includes:
Normally, there is no particular limitation as long as it is a solvent contained as a coating agent for the synthetic resin, such as a fungicide / fungicide or an insecticide,
For example, ethanol, isopropyl alcohol, 2-phenoxyethanol, xylene, xylol, acetone, mineral spirit and the like can be mentioned. However, environmentally, it is preferable to use an organic solvent as little as possible. From the viewpoint of safety, it is preferable to use a lactate alone or a mixture of a lactate and an organic solvent. Lactic acid esters are very safe, known as food additives and flavoring agents, but are known to show excellent compatibility when blended with conventional fungicides and fungicides, insecticides, etc. Absent. Examples of the lactate include alkyl lactates such as ethyl lactate, methyl lactate, and butyl lactate. The mixing ratio of the solvent in the insect-controlling composition of the present invention can be appropriately determined according to the type and mixing ratio of the above-mentioned antifungal agent and synthetic resin. Usually, it is 20 to 85% by weight, preferably 50 to 85% by weight in the composition. When a lactic acid ester is blended, the lactic acid ester is blended in an amount of 10% by weight in the composition in order to prevent aggregation of the antibacterial and fungicide.
As described above, it is desirable to mix them in a ratio of preferably 13 to 40% by weight.

[0011] In addition to the above essential components, various additives and fungicides used in fungicides and fungicides can be added to the insect-controlling composition of the present invention, if desired. Fungicides that are highly toxic and have an adverse effect on the human body, such as ethyl paranitrophenylthiobenzenephosphonate, amide thioate, yellow phosphorus, hydrogen cyanide (hydrocyanic acid gas), diethyl paranitrophenylthiophosphate, 1,1-
Dimethyl-4,4-dipyridinium dichloride, diarsenic trioxide, sodium arsenite, monofluoracetic acid amide,
Cresol, chloropicrin, thallium acetate, DDVP
(Dichlorovinyl phosphate dimethyl) is not preferred.

In the insect-controlling method of the present invention, the above-described insect-controlling composition is contacted and fixed to a portion of the structure including wood and tatami (hereinafter, sometimes referred to as a coated object). The insect repellent composition can be brought into contact with the article to be coated by, for example, spraying, coating, or the like, and can be fixed with the compounded synthetic resin by performing natural drying, forced heating drying, or the like.

[0013]

The composition for controlling insects according to the present invention contains an antibacterial and fungicide having little toxicity, a synthetic resin, and a solvent as essential components, and is excellent even without containing a usual insecticide component. Insect repellent action can be maintained, adverse effects on the human body are suppressed, and the composition can be used safely. Further, in the insect-control method of the present invention, the above-described insect-control composition can be effectively acted on pests against wood and tatami by a simple method of simply contacting and fixing, and also has an effect on the human body during work. Less insect repellent effect can be maintained for a long time.

[0014]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto. Example 1 As a fungicidal and fungicide, 0.6 parts by weight of 2- (4-thiazolyl) benzimidazole, 1.4 parts by weight of dichlorofluanid and 0.5 part of 1-((diiodomethyl) sulfonyl) -4-methylbenzene were added. 20.0 parts by weight and trade name "Cemistop" (manufactured by Mitsui Chemicals, Inc.)
Parts by weight, and 15.0 parts by weight of ethyl lactate, 5.0 parts by weight of xylene, and 57.5 parts by weight of isopropyl alcohol as a solvent.
The mixture was stirred and mixed with 40 parts by weight at 40 ° C to prepare a composition for controlling insects. The resulting insect-controlling composition was applied to the surface of a 3 cm square cedar square having a length of 30 cm and dried to prepare a test square.
The test squares were buried in the soil of about 20 cm in the shade of trees in the Izu district where many termites breed in the sun, and the growth state of wood-rotting fungi and the termites' eating damage were observed for one year. Table 1 shows the results. In addition, the evaluation in Table 1 evaluated the thing which the growth of a rot fungus and the damage of a termite did not exist in the test square wood.
△ indicates that only the rot fungus grew, × indicates that the termite was damaged, and XX indicates that the termite was damaged.

Example 2 As a fungicide and fungicide, 0.6 parts by weight of 2- (4-thiazolyl) benzimidazole, 1.4 parts by weight of dichlorofluanid and 1-((diiodomethyl) sulfonyl) -4-methylbenzene 0.5 parts by weight and 15.0 as trade name “Cemistop” (manufactured by Mitsui Chemicals, Inc.) as a synthetic resin content.
Parts by weight, and 15.0 parts by weight of ethyl lactate, 5.0 parts by weight of xylene, and 63.0 parts by weight of isopropyl alcohol as a solvent.
The mixture was stirred and mixed with 40 parts by weight at 40 ° C to prepare a composition for controlling insects. The resulting insect-controlling composition was applied to the surface of a 3 cm square cedar square having a length of 30 cm and dried to prepare a test square.
Using the test squares obtained, the damage by termites was observed for one year in the same manner as in Example 1. Table 1 shows the results.

Comparative Example 1 30 cm long 3c without treatment of the insect repellent composition
The m-square cedar wood was used as the test wood, and the termites were observed for damage for one year in the same manner as in Example 1. Table 1 shows the results.

[0017]

[Table 1]

Example 3 The insect-controlling composition prepared in Example 1 was sprayed on 1 m ² of a part of a base of a wooden one-story kitchen, which was damaged by termites. As a result, the termites died where they were sprayed directly on the termites. Also, 1
When observed year after year, no progression of termite damage was observed.

Example 4 A cedar log with a diameter of about 30 cm was prepared, two years after cutting down, contaminated with wood rot fungi, and one-fifth of the part in contact with the ground was attacked by termites. did. The composition for insect repellent prepared in Example 2 was applied to the log in a running water state and left outdoors. As a result, the termites died in the portion where the insect-controlling composition was in direct contact with the termite group, and the termites were diffused in other portions. After one year, no wood rot fungi or termites were found, but as a result of exposure to the weather, wood rot fungi began to come into contact after one year and June.

Example 5 As a fungicide / fungicide, 0.6 parts by weight of 2- (4-thiazolyl) benzimidazole, 1.4 parts by weight of dichlorofluanid and 1-((diiodomethyl) sulfonyl) -4-methylbenzene 0.5 parts by weight and 15.0 as trade name “Cemistop” (manufactured by Mitsui Chemicals, Inc.) as a synthetic resin content.
Parts by weight, 15.0 parts by weight of ethyl lactate as a solvent, 2-
1.0 part by weight of phenoxyethanol and 66.5 parts by weight of isopropyl alcohol were stirred and mixed at 40 ° C. to prepare a composition for insect control. The obtained composition for insect repellent was used to prepare a length 3
A test square was prepared by applying it to a 0 cm 3 cm square cedar square and drying it. The test squares were buried in the shade of about 20 cm in the shade of trees in the mountainous area of Chiba where many termites breed, and the growth state of wood-rotting fungi and the damage by termites were observed for one year. Table 2 shows the results. The evaluation in Table 2 is the same as in Table 1.

Example 6 As a fungicide / fungicide, 0.6 parts by weight of 2- (4-thiazolyl) benzimidazole, 1.4 parts by weight of dichlorofluanid and 1-((diiodomethyl) sulfonyl) -4-methylbenzene 0.5 parts by weight, 20.0 parts by weight of trade name "Tosbarrier" (manufactured by Toshiba Silicon Corporation) as a synthetic resin content, 15.0 parts by weight of ethyl lactate, 5.0 parts by weight of xylene and isopropyl as a solvent 57.5 parts by weight of alcohol was stirred and mixed at 40 ° C. to prepare a composition for insect control. The resulting insect-controlling composition was applied to the surface of a 3 cm square cedar square having a length of 30 cm and dried to prepare a test square.
Using the obtained test squares, the damage by termites was observed for one year in the same manner as in Example 5. Table 2 shows the results.

Comparative Example 2 30 cm long 3c not treated with the insect repellent composition
The m-square cedar wood was used as the test wood, and the termites were observed for damage for one year in the same manner as in Example 5. Table 2 shows the results.

[0023]

[Table 2]

Claims (5)

[Claims] 1. A composition for controlling pests against wood and tatami mats, which comprises a fungicide and a fungicide, a synthetic resin, and a solvent. 2. The insect repellent composition according to claim 1, wherein the composition does not substantially contain an insecticide component for killing pests against wood and tatami mats. 3. The insect repellent composition according to claim 1, wherein the solvent contains a lactic acid ester. 4. The pest on wood and tatami mats is termites
(Termites (ISOPTERA), Rhinotermitidae (Rhinote
rmitidae)), bark beetle (Scolytidae),
Any one of claims 1 to 3, which is selected from the group consisting of Leaf beetle (Lepidoptera, Beetle family (Lyctidae)), Leaf beetle (Lepidoptera: Lyctidae), and mite (Acari (ACARINA), Acaridae (Acaridae)). 2. The composition for controlling insects according to item 1. 5. A method for controlling insects, comprising contacting and fixing the insect-controlling composition according to any one of claims 1 to 4 to a portion of the structure including wood and tatami mats.