JP2004137150A - Termite-proof material and termite-proof method with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termite-proof material preventing deterioration of a termiticidal material acting on termites in a manner of delayed effects and nonrepellencies and eliminating a load on inspecting operation of damage by eaten by the termites and to provide a termite-proof method with the same. <P>SOLUTION: The termite-proof material 10 has a cellulosic substrate 5 impregnated with the termiticidal material acting on the termites in the manner of delayed effects and nonrepellencies and providing a food for the termites and a resin container 3 for sealing the substrate, having poor water permeability and easily damaged by eaten by the termites. The substrate 5 is selected from, e.g. wood, sawdust, paper and cellulosic materials. The termiticidal material is selected from chlorfenapyr, fipronil, hydramethylnon, etc. The resin container 3 is, e.g. a cylindrical box body or a rectangular box body or a cylindrical bag or a rectangular bag. The resin container 3 is preferably composed of a polystyrene foam. <P>COPYRIGHT: (C)2004,JPO

Description

【００２８】
（考察）
実施例１で得たベイト剤を挿入したポリスチレン発泡体で構成される樹脂容器に入れたベイト剤は、６ヶ月間土中に埋設しても分解を受けずにほぼ安定であることがわる。
【００２９】
（試験例２）
（シロアリによる食害試験）
実施例１で得たベイト剤を挿入したポリスチレン発泡体で構成される樹脂容器中にアカマツ辺材（３．５×３．５×５ｃｍ）を入れて、接着剤でシールした。このものを５個用意し、東京都八丈島のイエシロアリが生息している試験地の地中にそれぞれ１ｍ以上離れるように埋設した。また、容器に入れないアカマツ辺材も同様に５個埋設した。６ヶ月経過後に、それぞれ土中から取り出し、アカマツ材の食害程度を観察した。なお、試験地のシロアリを死滅させないために、木材には殺蟻性成分を含浸させなかった。
【００３０】
測定結果は、次の表２に示される。
【００３１】
【表２】

【００３２】
（考察）
イエシロアリは、発泡ポリスチレンの容器に木材を入れた場合でも、入れないものと同様によく食害していた。したがって、発泡ポリスチレンでベイト剤を被覆したとしても、ベイト剤の喫食を阻害することはないと判断できる。
【００３３】
【発明の効果】
本発明によれば、シロアリに対し遅効的且つ非忌避的に作用する殺蟻性物質が含浸されたシロアリにとって食物になるセルロース質の基材とこれを封入する透水性に乏しく且つシロアリが容易に食害できる樹脂容器とを有しているので、▲１▼前記基材を屋外の地中に設置しても、水分の影響を受けなくなるので微生物による分解を防止することができること、▲２▼シロアリが侵攻してきた際にもベイト剤としての機能を発揮することができ、そのために、住宅を被害から防止することが可能になること、▲３▼従来のベイト工法のような度重なる点検は不要になり、そのために、点検に要する種々のコストの節約につながること、といった効果を奏する。
【図面の簡単な説明】
【図１】本発明の第１の形態を示す防蟻材料の断面図である。
【符号の説明】
１　容器部
１ａ　内側嵌合部材
２　蓋部
２ａ　外側嵌合部材
３　樹脂容器
４　嵌合部
５　セルロース質の基材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a termite-controlling material that eliminates an entire termite colony by causing termites in the soil to eat termite-killing substances that act on termites in a slow and non-repellent manner and bring them back to the colony, About the method.
[0002]
[Prior art]
As a conventional termite control technique, a technique (hereinafter referred to as "prior art 1") in which an termiticide composed of an organic phosphorus compound, a pyrethroid compound or the like is applied as an emulsion or a microencapsulating agent to soil under the floor is used. Has become. Termites such as the subterranean termites, the termite and the termite, form an ant path in the foundation and pipes through the underfloor soil and damage wood such as the foundation. Forming a barrier for termite control agents that cannot pass through is very effective in termite control measures.
[0003]
However, in the "prior art 1", a large amount of termiticide is sprayed under the floor, so that the termiticide scattered at the time of spraying the medicine has a bad influence on the health of workers, and the sprayed termiticide is in a residential environment. There is a problem of causing a sick house problem by contaminating the soil, and that the sprayed termiticide decomposes in soil to cause a reduction in efficacy.
[0004]
Therefore, a bait method has been proposed as a technique that does not spray such a termiticide. In this bait method, first, wood or the like that feeds on termites is buried in the outer soil of the building, and by periodically observing it, it is determined whether or not the termites exist around the building. When termites are detected, the technique is to exterminate termites by replacing wood as bait with bait (bait) (hereinafter referred to as “prior art 2”). The bait is obtained by impregnating a cellulosic base material such as wood or paper, which is easy for termites to eat, with a termiticide that acts on termites in a slow and non-repellent manner. Examples of such termicidal substances include compounds such as chlorfenapyr, fipyronyl, hydramethylnon, sulfuramide, hexaflumuron, diflubenzuron, chlorofluazuron, and triflumuron.
[0005]
According to “prior art 2”, termites take up these termiticides into the body by eating bait and bring them back to the colony to provide to other termites. It becomes possible to exterminate. Also, since this method does not spray a large amount of medicine under the floor, there is a great merit of reducing the load on people and the environment.
[0006]
[Problems to be solved by the invention]
In “Prior Art 2”, it is unknown from the beginning whether termites exist around the building, and therefore, it is necessary to install timber as bait in the soil and periodically determine whether termites are eating. The presence of termites can be confirmed only after a thorough inspection. This inspection work is important, and if it is neglected, the termites will damage the building itself. This inspection is required about two to four times during the termite activity season, from spring to autumn. However, when the number of houses in the building increases, there is a problem that the burden of inspection work for termite damage is increased.
[0007]
In addition, if bait can be installed in the soil instead of bait for finding termites from the beginning, it is thought that the number of inspections can be greatly reduced, but the period until termites eat bait cannot be identified. In general, it is often necessary for several years, during which time there is a problem that the termiticide impregnated in the bait is degraded by soil moisture or microorganisms. Even if termites invade after the active ingredient in the bait is degraded, it does not function and may damage buildings.
[0008]
The present invention aims to solve such a problem.
That is, the present invention provides a termite-controlling material and a termite-control method using the termite-controlling material, which prevents deterioration of termiticidal substances that act on termites in a slow and non-repellent manner, thereby eliminating the burden of checking for termite damage. It is intended to be.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is a cellulosic base material that becomes food for termites impregnated with termiticides that act slowly and non-repellently against termites, A termite-resistant material, characterized by having a resin container enclosing the same and having poor water permeability and capable of being easily damaged by termites.
[0010]
According to a second aspect of the present invention, in the first aspect, the base material is selected from wood, sawdust, paper, and a cellulosic material.
[0011]
The invention described in claim 3 is the invention according to claim 1 or 2, wherein the termiticidal substance is chlorfenapyr, fipyronyl, hydramethylnon, sulfuramide, hexaflumuron, diflubenzuron, chlorofluazuron and It is characterized by being composed of at least one compound selected from triflumuron.
[0012]
The invention described in claim 4 is the invention according to any one of claims 1 to 3, wherein the resin container is a cylindrical box or a rectangular box, or a cylindrical bag or a rectangular bag. It is characterized in that it is a shaped bag.
[0013]
The invention described in claim 5 is the invention described in claim 4, wherein the resin container is formed of a polystyrene foam and / or a urethane foam.
[0014]
The invention described in claim 6 is a termite control method, wherein the termite control material described in any one of claims 1 to 4 is buried in soil on the outer periphery of a building in advance.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view of a termite-controlling material showing a first embodiment of the present invention.
[0016]
As shown in FIG. 1, the termite-controlling material 10 of the present invention comprises a cellulosic base material 5 which becomes food for a termite impregnated with a termiticide which acts slowly and non-repellently on the termite, And a resin container 3 which has poor water permeability and can be easily damaged by termites. The resin container 3 includes, for example, a container part 1 and a lid part 2, and the container part 1 and the lid part 2 are fitted together by a fitting part 4. The fitting portion 4 is composed of a thin inner fitting member 1a provided in the entire region near the upper side of the container portion 1 and a thin outer fitting member 2a provided in the entire lower region of the lid portion 2. The container part 1 and the lid part 2 are preferably bonded so that moisture does not intrude from their joint, that is, the joint between the inner fitting member 1a and the outer fitting member 2a, and preferably does not attack the polystyrene foam. Completely sealed with the agent.
[0017]
According to the present invention, a cellulosic base material (bait agent) 5 which becomes a food for a termite impregnated with a termiticide which acts slowly and non-repellently on the termite has poor water permeability and is easy to use. Since the base material 5 is enclosed in the resin container 3 made of a resin that can be damaged by water, the base material 5 is not affected by moisture even when the base material 5 is installed outdoors, so that decomposition by microorganisms can be prevented. This is because a certain amount of water is required as an activity condition of the underground microorganisms. If the base material 5 is protected from underground microorganisms in such a state, it can function as a bait even when termites invade, and can prevent the house from being damaged. Become. Further, repeated inspections as in the conventional bait method are not required, and various costs required for the inspection can be saved.
[0018]
In the present invention, the cellulosic base material 5 which becomes food for the termites is preferably selected from wood, sawdust and paper, but may be any other cellulosic material.
[0019]
The termiticidal substance which acts on the termites in a slow and non-repellent manner in the present invention is preferably at least one selected from chlorfenapyr, fipyronyl, hydramethylnon, sulfuramide, hexaflumuron, diflubenzuron, chlorofluazuron and triflumuron. Although it is composed of one kind of compound, it may be a compound which acts on other termites in a slow and non-repellent manner as long as it does not contradict the object of the present invention. The termites take up these termiticides into the body by eating the base material (bait) 5 and bring them back to the colony and donate them to other termites, so that the toxic substance spreads over the entire colony and eventually eliminates the termites. It becomes possible. According to the present invention, since a large amount of these termicidal substances are not sprayed under the floor, there is a great merit of reducing the load on people and the environment.
[0020]
The resin container 3 having poor water permeability and capable of being easily damaged by termites in the present invention is preferably a cylindrical box, a rectangular box (not shown), or a cylindrical bag as shown in FIG. (Not shown) or a rectangular bag (not shown), but may have a shape other than the above-mentioned shape as long as it does not contradict the purpose of the present invention.
[0021]
The resin container 3 according to the present invention, which has poor water permeability and is easily damaged by termites, is preferably made of a polystyrene foam, but has a function of “poor in water permeability and easily attacked by termites”. If so, it may be something else. The base material 5 sealed in these resin containers 3 hardly absorbs water even when buried in wet soil. Further, according to the resin container 3, since the resin constituting the resin container is very soft, even if a termite moving in the ground collides with the resin, the resin can be relatively easily removed without changing the course. Because of the perforation, the base material (bait) 5 inside the resin container 3 can be eaten, and the original function of the bait can be exhibited.
[0022]
Since the polystyrene foam in the present invention is required to prevent moisture intrusion and not to hinder the perforation of termites as much as possible, the material should have a density of 15 to 100 kg / m ³ and a thickness of 1 to 100 kg / m ^3. It is preferably about 5 cm. The polystyrene foam having the above-described density and thickness is preferably a container having a cylindrical box or a rectangular box (not shown) as shown in FIG. Used for constituent materials. After such a container 1 is filled with a base material (bait agent) 5 without gaps, the container 1 is covered with a lid 2. At this time, the container part 1 and the lid part 2 are preferably made of a polystyrene foam so that moisture does not enter from the joint thereof, that is, the joint between the inner fitting member 1a and the outer fitting member 2a. Seal completely with non-corrosive adhesive.
[0023]
The termite-controlling material 10 of the present invention exterminates termites by burying them in soil in the outer periphery of a building in advance. After the termites pierce the polystyrene foam, there is no problem even if the bait inside is wet because the termites eat the bait in a short period of time. The number of termitic materials 10 to be buried depends on the location of the building, but it is usually preferable to install them at intervals of 3 m. When the termite-controlling material 10 is buried, a wooden pile or the like may be provided so as to be in contact with the resin container 3 of the buried termite-controlling material 10, to promote the inducing of termites and the damage to the bait. The size of the base material (bait) 5 is adjusted according to the type of termite and the population density.
[0024]
【Example】
(Example 1)
Chlorfenapyr was dissolved in methanol to obtain a 0.1% solution of chlorfenapyr. Next, the cardboard paper was immersed and taken out of the solution, and the cardboard paper was put into a ventilation dryer at 40 ° C. to completely remove methanol, thereby preparing a bait. The bait is rolled into a resin container made of a polystyrene foam having an inner diameter of 5 cm, an inner height of 15 cm, a thickness of 2 cm, and a density of 25 kg / m ^3. Then, a lid was adhered to form a termite-proof material (see FIG. 1).
[0025]
(Test Example 1)
(Stability of termiticides)
An anti-termite material consisting of a resin container composed of a polystyrene foam into which the bait agent obtained in Example 1 was inserted was buried in outdoor soil. The burying depth of the termite-controlling material was set to be about 3 cm above the soil surface. The termite-proofing material was buried for 6 months and repeated 3 times. As a comparative example, a cardboard paper impregnated with a bait was wrapped in gauze and embedded. After the test was completed, the termite-control material was taken out of the soil, the resin container was cut off, and the cardboard paper inside was taken out to measure its weight. The cardboard was dried at 40 ° C. for 48 hours, and the weight was measured again. Subsequently, chlorfenapyr was extracted from the cardboard paper with acetone, and the remaining amount of chlorfenapyr was analyzed by HPLC. Those wrapped in gauze were measured in the same manner. However, the water content (%) of the bait after removal from the soil and the residual amount of chlorfenapyr (%) in the bait were calculated as follows.
-Moisture content (%) = (weight of bait immediately after taken out of soil-weight of bait after drying) / weight of bait after drying x 100
-Residual rate (%) = (amount of active ingredient in bait buried in soil / amount of active ingredient in bait stored indoors) x 100
[0026]
The measurement results are shown in Table 1 below.
[0027]
[Table 1]

[0028]
(Discussion)
The bait prepared in Example 1 and placed in a resin container composed of a polystyrene foam into which the bait has been inserted is almost stable without being decomposed even when buried in soil for 6 months.
[0029]
(Test Example 2)
(Eating damage test by termites)
A red pine sapwood (3.5 × 3.5 × 5 cm) was placed in a resin container composed of a polystyrene foam into which the bait obtained in Example 1 was inserted, and sealed with an adhesive. Five of these were prepared and buried at a distance of 1 m or more in the ground of a test site inhabiting the termites of Hachijo-jima, Tokyo. Similarly, five red pine sapwood that cannot be put in the container were buried. After 6 months, each was taken out of the soil and the degree of damage to the red pine was observed. The wood was not impregnated with termiticidal components in order not to kill termites on the test site.
[0030]
The measurement results are shown in Table 2 below.
[0031]
[Table 2]

[0032]
(Discussion)
House termites, even when wood was placed in foamed polystyrene containers, were as well attacked as those that did not. Therefore, it can be determined that even if the bait is covered with the expanded polystyrene, the bait is not hindered from being eaten.
[0033]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the cellulosic base material which becomes a food for the termite impregnated with the termiticide which acts slowly and non-repellently with respect to the termite, and the poorly permeable and the termite which encapsulates the same are easily prepared (1) Even if the base material is installed outdoors in the ground, it is not affected by moisture, so that decomposition by microorganisms can be prevented. (2) Termites Can function as a bait even when the invader has invaded it, which makes it possible to prevent the house from being damaged. This leads to the effect of saving various costs required for inspection.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a termite control material according to a first embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container part 1a Inner fitting member 2 Lid part 2a Outer fitting member 3 Resin container 4 Fitting part 5 Cellulose base material

Claims (6)

A cellulosic substrate impregnated with termite-killing substances that acts slowly and non-repellently to termites, and a resin container enclosing the same that has poor water permeability and can be easily damaged by termites An anti-termite material comprising: The termite-controlling material according to claim 1, wherein the base material is selected from wood, sawdust, paper, and cellulosic material. 2. The termiticidal substance is composed of at least one compound selected from chlorfenapyr, fipyronyl, hydramethylnon, sulfuramide, hexaflumuron, diflubenzuron, chlorofluazuron and triflumuron. Or the termite-controlling material according to 2. The termite-proofing material according to any one of claims 1 to 3, wherein the resin container is a cylindrical box or a rectangular box, or a cylindrical bag or a rectangular bag. The termite control material according to claim 4, wherein the resin container is formed of a polystyrene foam and / or a urethane foam. A termite control method, comprising burying the termite control material according to any one of claims 1 to 5 in soil on the outer periphery of a building in advance.

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