JPS63255207A - Mite attractant - Google Patents

Abstract

PURPOSE:To obtain a mite attractant free from species specificity and exhibiting excellent attracting effect to all kinds of mites, by using at least one food flavor selected from chocolate, almond, cheese, bonito, butter and sesame. CONSTITUTION:The objective mite attractant capable of attracting almost all kinds of mites living in ordinary houses from the living place and capturing the mites is produced by using at least one kind of food flavor selected from chocolate flavor, almond flavor, cheese flavor, bonito flavor, butter flavor and sesame flavor (the flavors may be used singly or in combination or the flavors may be combined with pheromones). The food flavor may be an extract from natural material or a synthetic flavor. The agent is used e.g. by placing said mite attractant on a sticking layer 2 on a mite-exterminating sheet 1 and covering the attractant layer with a mesh spacer 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mite attractant suitable for attracting and capturing sanitary pests such as mites.

[Conventional technology]

In recent years, with advances in construction technology, the airtightness of houses, the spread of air conditioners, and the installation of carpets have created favorable conditions for the inhabitation of mites, and the reality is that the breeding of mites is encouraged. be.

Small animals called sanitary pests such as mites and lice, in addition to transmitting infectious diseases, are harmful to the human body such as blood sucking, biting, and parasitism.
These mites cause physical and mental pain and are a source of allergies for children with asthma and other conditions. For this reason, there is a demand for effective extermination of mites, but the reality is that no effective extermination method or materials for attracting and trapping mites have yet been developed.

[Problem that the invention seeks to solve]

The mites that occur and live indoors in ordinary homes include mites such as mites, spider mites, and mites. Condominium mites were once well known as food mites, but
In recent years, it has been proliferating abnormally on tatami mats.

While some, such as the white mite, do not cause direct damage to humans, others, such as the Dermatophagoides mite and the black mite, cause direct damage to humans by sucking blood, biting, and causing allergies such as asthma in children. The above-mentioned mites feed on waste materials such as dandruff generated from the human body, 9 food particles, mold, etc., but mites such as claw mites are also known to reproduce by feeding on other mites. Therefore, exterminating all the mites leads to reducing the damage caused by mites. However, small animals such as mites are not only small in size, but also generally live in small spaces, making it extremely difficult to easily confirm their existence with the naked eye and difficult to exterminate them.

In recent years, an aggregation pheromone for white mites has been synthesized and its attracting effect has been confirmed. Namely, Lardoglyplws knonoi
Extracts from the staghorn mite and the sugar mite.

It has been discovered that there is an active substance that aggregates the wheat and woolly mites, which is 1,3,5,7-tetramethyldecyl formate (1,3,5°7-tetrame
It was identified as thyldecyl format. The above substance is derived from the scientific name Lardolua (Lardol).
Lure). Then, the absolute structure of Raldol Rua is (IR,3R,5R,7R)-tetramethyldecyl formate ((IR,3R,5R,7R)-tetr
amethyldecyl format) (R
:alkyl group) was determined and synthesized. It was confirmed that the synthetic Rallure exhibits similar activity to the natural product.

Although the above-mentioned pheromone exhibits a strong attracting power even in a small amount, it is species-specific, so the types of mites that can be attracted may be limited, and it is insufficient for comprehensive attraction and extermination of mites in general households. Therefore, it is necessary to develop materials for attracting and capturing mites by luring them out of their habitats with suitable attractants, and to discover attractants that are not species-specific and are widely effective against mites. It was desired.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a mite attractant that is not species-specific and exhibits an excellent attracting effect on all mites.

[Means for solving problems]

In order to achieve the above object, the tick attractant of this invention
The composition includes at least one food flavor selected from the group consisting of the following (A) to (F) as an active ingredient.

(A) Chocolate flavor.

(B) Almond flavor.

(C) Cheese flavor.

(D) Bonito flavor.

(E) Butter flavor.

(F) Sesame flavor.

That is, in order to develop an attractant that can easily lure out mites living in the home, the present inventors first conducted research focusing on mite foods. This invention was achieved by discovering that the flavor has a strong attracting effect.

The mite attractant of this invention is obtained using a specific food flavor. The specific food flavors listed above include chocolate, almond, cheese, and bonito.

Butter and sesame flavors are mentioned, and both flavors extracted from natural substances and synthetic flavors are suitably used.

The above-mentioned flavors may be used alone or in combination of two or more kinds.Furthermore, the tick attractant of the present invention may use the above-mentioned pheromone in combination with the above-mentioned flavors.

When using the above flavors as attractants,
Although it is possible to simply adsorb the attracting compound to filter paper or other porous substrate, it is preferable to use it in a formulation.The form of the formulation is as follows: ■ A rubber septum or polyethylene cap is impregnated with the tick attractant. (1) Enclosed in a film that allows the release rate of the active ingredient to be controlled; (2) Enclosed in a hollow can made of a material through which the active ingredient cannot pass, with one end of the hollow can open; (2) Both. Examples include those encapsulated in a sheet having a multilayer structure in which the outer side layer is a film that controls the release of the active ingredient, and (2) those encapsulated within a membrane structure that controls the release rate of the active ingredient.

The above-mentioned mite attractant can be used by setting it in an appropriately shaped trap, or by forming an adhesive layer on the surface of the base material and placing the attractant on this surface layer. is valid. It is also effective to mix a mite attractant into the adhesive composition to form a layer of an adhesive substance on the surface of the base material.

The sticky substance may be liquid or semi-solid at room temperature. For example, oils, softeners, liquid rubber, liquid resins, natural proteins, polysaccharides, and polymeric substances. Examples include pressure-sensitive adhesive substances and adhesive hydrogels whose main component is synthetic resin. As a capture method, the above-mentioned adhesive substance is formed on the surface of a base material such as a film, sheet, molded product, etc. by extrusion, roll, brush, spray, etc., by laminating, coating, spraying, etc. After placing an attractant on the surface of a sex sheet, etc., place it in a place where mites are thought to live, either with the adhesive layer facing upwards or with the adhesive layer facing downwards. In the latter case, it is preferable to interpose a net-like or pillar-like spacer so that the adhesive surface does not come into direct contact with the carpet, etc. To explain in more detail, as shown in the drawing, it is preferable to interpose a spacer in the form of a net or pillar. An adhesive Ji2 is provided, and a tick attractant 3 is further placed in the center of the adhesive layer 2. Then, these are covered with a rope-like spacer 4. next,
The surface of the adhesive layer 2 of this product is facing downward, and it is applied onto carpets and tatami mats. When applied with the Adhesive 1i20 side facing upward, the mite trapping effect may be poor. However, when applying the adhesive layer 2 with the surface facing downward, the surface of the adhesive layer 2 comes into direct contact with the surface of the carpet or tatami mat, so dirt, dust, etc. are captured along with the mites, and furthermore, the mites are removed. When collecting the sheet 1, it may be difficult to separate it from the carpet and tatami. For this reason, as described above, the mesh spacer 4 is provided. The material used for the mesh spacer 4 is preferably one that has some degree of flexibility (for example, general plastic mesh and wire mesh are suitable. Also, as described above, the adhesive layer 2
5 per cm when used with the side facing downward.
The trapping efficiency is improved by applying a weight of about 0 g to embed the 20 sides of the adhesive layer in the carpet. The same applies when the adhesive layer 20 side is facing upward.

In general, the size of the mite extermination sheet necessary for capturing mites is a sufficient adhesive area of 25 to 200 cd, and 1 c11
It is sufficient to place a certain amount of mite attractant in the center of the adhesive surface. The preferred amount of the active ingredient contained in the tick attractant is 5 to 100 cm, and a sufficient attracting effect can be expected.

Next, methods for detecting mites captured on the surface of the adhesive layer 2 include a method of directly counting them using a microscope and a magnifying glass, and a method of simply detecting them with the naked eye. This method of easily detecting mites with the naked eye involves crushing the captured mites to release body fluid, and reacting this body fluid with a specific color-forming compound to develop color, which can be easily detected with the naked eye.

The above method can be easily realized by pressing a sheet made of a composition containing a compound that develops color by reacting with body fluids of mites onto an adhesive surface on which mites have been captured. Also,
Mites can be detected more easily by mixing a coloring compound and a mite attractant into the adhesive composition and forming an adhesive surface on the surface of the substrate.

The above-mentioned color-forming compound includes ninhydrin, 2.4.6
-Sodium dolinitrobenzenesulfonate, Floca staining solution, etc.

〔Effect of the invention〕

As described above, the mite attractant of the present invention has a specific food flavor as an active ingredient, and its attracting action lures most types of mites that live in ordinary homes out of their habitats and captures them. becomes possible. In other words, while pheromones, which are conventional attractants, may limit the types of mites that can be attracted, the tick attractant of this invention has no species specificity in the food flavor that is the active ingredient. , attracts most types of mites.

Therefore, by capturing ticks using this,
It will be possible to eliminate the transmission of infectious diseases caused by ticks, mental and physical pain caused by blood sucking, and allergies such as childhood asthma.

Next, examples will be described together with comparative examples.

[Example 1] An acrylic adhesive was applied to a thickness of 50 μm on the surface of a polyethylene terephthalate (rPET) base material with an area of 10 ci x 10 cm, and the adhesive layer shown in Table 1 below was applied to the center of the surface of the adhesive layer. ICllllXIC11 filter paper on which 10 μl of the various attracting compounds shown had been adsorbed was installed. moreover,
1 mφ so that there are 4 holes x 4 holes on the top of the adhesive layer surface.
A net made of nylon thread was installed. Next, the above-mentioned mite-attracting and capturing substrate was applied onto a carpet in a living room in an ordinary household with the sticky side to which the net was attached facing downward.

After leaving it for 3 days, the number of mites attached to the adhesive layer was counted using a microscope.

[Comparative Example 1] No tick attractant was installed. Other than that, the procedure was the same as in Example 1, and the number of mites attached to the adhesive layer was counted using a microscope.

The results of Example 1 and Comparative Example 1 are shown in Table 1 below.

(Hereafter, blank space) Table 1-1 (blank space) [Example 2] The adhesive area was replaced with 5CIX5C11, and the mite attractant was replaced with various compounds shown in Table 2. Other than that, the procedure was the same as in Example 1, and after leaving it for one day, the number of mites attached to the adhesive layer was measured using a microscope.
It was counted using a mirror. In this case, the sample is N11l~
There were three Nα3 pieces.

[Comparative Example 2] No tick attractant was installed. Other than that, the procedure was the same as in Example 2, and the number of mites attached to the adhesive layer was counted using a microscope.

The results of the average number of fish caught in Example 2 and Comparative Example 2 are shown in Table 2 below.

(Margins below) Table 2-11 20 to 30% of the average total count of mites were Dermatophagoides mites and Thread mites, and the rest were mites.

[Example 3] On the surface of a PET base material with an area of 7 cm x 7 cr,
An acrylic adhesive containing 1% (weight ratio) of chocolate synthetic flavor based on the amount of adhesive was applied to a thickness of 30 μm, and cardboard was attached to the back side as a support. Furthermore, a net using nylon thread was provided above the adhesive layer so as to have 5 gaps x 5 mm. Next, the above-mentioned mite-attracting and capturing substrate was applied to a tatami mat under a carpet in a living room in an ordinary household, with the sticky side to which the net was attached facing downward.

After standing for 3 days, the number of mites attached to the adhesive layer was counted using a microscope, and the results of the number of mites captured are shown in Table 3 below. In this case, there were five samples, Nα1 to Nα5.

[Brief explanation of drawings]

The drawing is an explanatory diagram of a substrate for attracting and capturing ticks. 1...Mite extermination sheet 2...Adhesive layer 3...Mite attractant 4...Net

Claims (3)

[Claims] (1) A mite attractant containing as an active ingredient at least one food flavor selected from the group consisting of (A) to (F) below. (A) Chocolate flavor. (B) Almond flavor. (C) Cheese flavor. (D) Bonito flavor. (E) Butter flavor. (F) Sesame flavor. (2) The tick attractant according to claim 1, wherein the above (A) to (F) are extracted from natural substances. (3) The mite attractant according to claim 1, wherein the above (A) to (F) are synthetic flavors.