JP2001061397A - Tool for controlling creeping pest and control thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable various pests to be controlled regardless of palatability because when the intruding creeping pests touch an insecticidal component or only pass thereon, the pests are brought to death only by touching the insecticidal component even if the pests do not eat the insecticidal component. SOLUTION: This tool for controlling creeping pests has a material having <=1.0×10-6 mmHg vapor pressure under a condition of 20 deg.C, and a high fatal activity against the creeping pests, acting to manifest delayed effects, and arranged on a part or the whole surface of at least one inner wall within the range of >=0.5 cm width in the progressing direction of the creeping pests in a vessel having an entrance having the largeness capable of allowing the creeping pests to go in and out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawling pest control device for controlling creeping pests such as cockroaches and ants, and a method for controlling the same.

[0002]

2. Description of the Related Art Conventionally, in order to exterminate creeping pests such as cockroaches and ants, a method (residual application) of spraying a pesticide over a wide area on a path or a place where a pest is to live or a bait is often used. . In addition, a cockroach attracting device is used, which is a tubular body on the inside of which a pesticidal compound has been treated, and which has a hole on the side surface of the tubular body having a size that allows pests to enter and exit. (See JP-A-10-14465 and JP-A-10-23851)

[0003]

The former is wasteful and not economical. In addition, there is a risk of adversely affecting the environment or livestock. The method using the poison bait has no effect unless it is eaten, and the palatability of the bait varies depending on the pest, so that it cannot cope with various pests. In the latter case, the pest cannot take the medicine back to the home, so it is not possible to exterminate the friends in the home, and children and the elderly may easily insert their fingers into the holes and easily touch the medicine. Containers may be harbors of pests and are unsanitary.

[0004]

[Action] The control device according to the present invention can be used in various ways regardless of taste, because the invading creeping pest can die only by touching or passing over the insecticidal component, and die by touching without eating. Effective pest control. In addition to touching or passing over the pesticidal component, ingestion of the pesticidal component, as in a normal poison bait, can lead to death. Furthermore, by touching or ingesting the insecticidal component, the crawling pest can bring the insecticide component back to its home, thereby killing the fellow crawling pest (secondary or tertiary insecticidal effect). The insect pest touched by the insecticide returns to its place of dwelling with the insecticide attached to the body, and contacts the fellow pest in the dwelling, causing the fellow pest to die . In addition, the pests taken into the insecticidal component return to the place where they live and make feces, and also cause the fellow pests that have eaten the feces to die. If the pest is an ant, after ingesting the insecticidal component, return to the place where it lives, and exhale and give it to friends. The ants fed the food also die. Examples of creeping pests to be controlled include cockroaches such as black cockroaches, German cockroaches, and cockroaches;

[0005]

The present invention has been made to solve the above-mentioned problems, and has a vapor pressure of 1.0 × 10 ⁻⁶ mmHg or less under a condition of 20 ° C., and is high against creeping pests. A substance having a lethal activity and acting slowly, the traveling direction of the creeping pest on at least a part or the entire inner wall of a container provided with an entrance having a size capable of entering and exiting the creeping pest. And a method for controlling a creeping pest using the pest controlling device disposed in a width range of 0.5 cm or more. The substance is one of vegetable oils, animal oils, kerosene, and alcohols.
It is arranged in a container as an insecticidal stock solution mixed with a seed or two or more kinds. The insecticidal stock solution is mixed with an ingredient for attracting creeping pests. The viscosity of the insecticidal stock solution is 0.5 to 1,500 cP at 20 ° C. As the carrier for the insecticidal stock solution, one or more of nonwoven fabric, paper, cloth, gel, and liquid absorbing polymer are used.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In order to achieve a special control effect of killing a pest just by touching it or exterminating a friend in a dwelling place, it shows extremely high lethal activity in a trace amount, It is necessary to select a pesticidal component that works. The lethal activity against creeping pests is usually determined by a typical German cockroach (Blattellage).
rmanica). The term “lethal activity” in the present invention refers to the guideline for inspection of sanitary animals (1971: supervised by the Ministry of Health and Welfare, published by the Japan Environmental Health Center).
Dissolve the insecticidal components in a suitable solvent, a small amount of a certain amount is dropped on a certain part of the insect epidermis with a micro syringe,
In the test of contact toxicants, the effect expressed by the insecticidal component treated based on the most basic “microdropping method (topical application method)” is defined as “lethal activity”. The term “high lethal activity” as used in the present invention means that the LD ₅₀ value (lethal drug amount for half the individuals) against German cockroaches obtained by this microdropping method is 1.0 μg / individual or less. The term "slow effect" means an effect (time lag from drug exposure to onset of action) necessary to bring the insecticidal component back to the pest. If the effect appears instantly after contact, there is no time to return to the place to live, and it is impossible to exterminate a friend who is in the place to live. Therefore, it is necessary to use an insecticidal component having a property that requires a certain period of time from drug exposure to onset of action. However, even for an insecticidal component that acts quickly, it is also possible to adjust such that the onset of action is delayed by reducing the dose.

Furthermore, in order to maintain the extermination effect over a long period of time, it is necessary to select a component which is difficult to volatilize at room temperature. The vapor pressure at 20 ° C. is usually 1.0 × 10 ⁻⁶ m
mHg or less, more preferably 1.0 × 10 ⁻⁷ mmHg or less.

From the above viewpoints, examples of insecticidal components having both physical properties and activity suitable for the present invention include pyrethroid compounds such as resmethrin, permethrin, cyphenothrin, cypermethrin, etofenprox, and tralomethrin; Examples include silafluofen, imidacloprid, and chlorfenapyr, but are not limited thereto as long as the above conditions are satisfied. Also, new compounds to be developed in the future will be able to develop pharmaceutical preparations early by utilizing the present invention.

The range in which the insecticidal components are arranged can be freely set depending on the target pest, but it is necessary to provide at least a width that does not allow the pest to pass over. Taking into account the manufacturability, economic efficiency, etc., it is usually 0.
It is even better to arrange it in a width of 5 cm or more, preferably 1 to 20 cm. The insecticidal component is usually arranged on a part or the whole surface of the floor inside the container, but may be arranged on a part or the whole surface of the side wall surface or the top surface. Since cockroaches and ants enter the container from various directions, it is more effective to have insecticidal components in a wider area. In consideration of manufacturability, economy, and the like, it is preferable to dispose it on a part of the floor surface, and in such a case, a sufficient effect can be obtained.

[0010] Since the insecticidal component is in a very small amount, it must be mixed with other components and used in the form of a solution or a suspension. Ingredients to be mixed with the insecticidal component are selected in consideration of the solubility, dryness, viscosity, adhesiveness of the insecticidal component, the effect on the target insect (repellent or attractive), safety, economy, etc. Is done. These components include vegetable oils such as soybean oil, rapeseed oil, sesame oil, peanut oil, olive oil, animal oils such as lard, tallow, kerosene, alcohols such as ethanol, methanol, polyethylene glycol, methyl diglycol, and glycerin. And the like.

[0011] The extermination efficiency can be enhanced by mixing the pest attractant component in the insecticidal stock solution. The attractant component can be selected from various food materials, sugars, flavors, extracts, pheromones, and the like, in addition to the above-mentioned vegetable oils and fats and animal fats and oils.

The viscosity of the stock solution is usually from 0.5 to 1,500 at 20 ° C. from the viewpoint of adhesion to the insect body.
cP, more preferably 50 to 1,000 cP. However, this does not apply when a gel is used as the carrier. The viscosity of the stock solution must not be too high or too low in order for a sufficient lethal amount of the insecticidal component to adhere to the insect body just by touching the insect pest.

The carrier for the insecticidal stock solution is not limited, but is made of rayon, synthetic fiber, glass fiber, etc. from the viewpoints of holding power of the insecticide stock solution, adherence of the stock solution to the insect body, and productivity. It is preferable to use paper such as nonwoven fabric, coated paper and cardboard, cloth made of natural fibers such as cotton, silk and wool, aqueous and oily gels, and liquid absorbing polymers.

[0014]

EXAMPLES Formulation Example 1 (Insecticidal stock solution formulation) Tralomethrin 1.0% Soybean oil 94.0% Beef oil 5.0%

Formulation Example 2 (Insecticide stock solution) Cyphenothrin 10.0% Soybean oil 85.0% Beef oil 5.0%

Formulation Example 3 (Insecticidal stock solution formulation) Permethrin 20.0% Soybean oil 75.0% Beef oil 5.0%

Comparative Example 1 (Insecticidal stock solution formulation) d-T80-phthalthulin 20.0% soybean oil 75.0% beef oil 5.0%

Test Example 1 (1) Test agent: A 12 cm ² polyester nonwoven fabric coated with the insecticidal stock solution shown in Formulation Examples 1 to 3 was used as a 7 × 11 ×
The test agent was placed in a 1.5 cm box-shaped container. (2) Control agent: 1 to which the insecticidal stock solution shown in Comparative Example 1 was applied
2 cm ² polyester non-woven fabric, 7 × 11 × 1.5
What was arranged in a box-shaped container of cm was used as a test agent. (3) Test insect: constant temperature (25 ° C), long day condition (14L1
0D) Breeding German cockroach (Blattell)
a germanica) (4) Test method: Test insects (100 male and female adults) were released in a test field (5.0 m ² ) equipped with water, solid feed, and a wooden shelter for 24 hours to acclimate to the environment. I let it. Thereafter, one test agent or control agent was placed in this field, and the number of dead insects was counted over time. (5) Test results: Table 1 shows the lethal effect of each test agent and control agent on German cockroaches.

[0019]

[Table 1]

Test Example 2 (1) Test agent: 1 to which the insecticidal stock solution shown in Formulation Example 1 was applied
2 cm ² polyester non-woven fabric, 7 × 11 × 1.5
What was arranged in a box-shaped container of cm was used as a test agent. (2) Test location: Restaurant located in Ono-cho, Saeki-gun, Hiroshima Prefecture (floor area: 174.7 m ² ) (3) Test insect: German cockroach (Blattella)
germanica) (4) Test method: 35 test agents (1 per test area /
5 m ² ), and the population density of cockroaches was investigated over time. The cockroach density was investigated by the number captured on the sticky trap. The cockroach index was calculated from the number of catches in each sticky trap by the following equation, and the extermination rate was calculated from the fluctuation of the cockroach index before and after installation by the following equation to evaluate the efficacy. Cockroach index = total number of catches / days of trap installation / number of trap installation locations Eradication rate = (1-cockroach index after test agent installation / cockroach index insect before test agent installation) × 100 (5) Test result: test Table 2 shows the lethal effect of the agent on the German cockroach under the practical conditions. The elapsed days -1 is one month before the start of the test (preliminary examination), and the elapsed days 0 is at the start of the test.

[0021]

[Table 2]

Test Example 3 (1) Test agent: 1 to which the insecticidal stock solution shown in Comparative Example 1 was applied
2 cm ² polyester non-woven fabric, 7 × 11 × 1.5
What was arranged in a box-shaped container of cm was used as a test agent. (2) Test location: Restaurant located in Minami-ku, Hiroshima City, Hiroshima Prefecture (floor area: 67.5 m ² ) (3) Test insect: German cockroach (Blattella)
(Germanica) (4) Test method: 14 test agents (1 per test area /
5 m ² ), and the population density of cockroaches was investigated over time. The cockroach density was investigated by the number captured on the sticky trap. The cockroach index was calculated from the number of catches in each sticky trap by the following equation, and the extermination rate was calculated from the fluctuation of the cockroach index before and after installation by the following equation to evaluate the efficacy. Cockroach index = total number of catches / trap installation days / trap installation locations Eradication rate = (1-cockroach index after test agent installation / cockroach index insect before test agent installation) × 100 (5) Test result: test Table 3 shows the lethal effect of the agent on the German cockroach under the practical conditions.

[0023]

[Table 3]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a crawling pest control device of the present invention.

FIG. 2 is a sectional plan view of the pest controller shown in FIG. 1;

FIG. 3 is a sectional side view of the pest controller shown in FIG. 1;

FIG. 4 is a cutaway perspective view of the control device shown in FIG. 1;

FIG. 5 is a perspective view showing another example of the crawling pest control device of the present invention.

FIG. 6 is a cross-sectional plan view of the control device shown in FIG. 4;

FIG. 7 is a cross-sectional side view of the pest controller shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Control device 2a, 2b ... Doorway 3a, 3b, 3c, 3d ... Insertion prevention wall of a finger etc. 4 ... Insecticidal liquid disposition part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 53/08 A01N 53/00 508B 508A

Claims (6)

[Claims] 1. The vapor pressure under 20 ° C. condition is 1.0 ×
^10-6 mmHg or less, and has a high lethal activity against crawling pests, and a substance that acts slowly, at least in a container provided with an entrance of a size that can enter and exit the crawling pests, A controlling device for a creeping pest, which is arranged on a part or the whole of one inner wall in a width range of 0.5 cm or more in a traveling direction of the creeping pest. 2. The method according to claim 1, wherein the substance is a vegetable oil, an animal oil,
The insect control device for creeping pests according to claim 1, wherein the insecticidal solution mixed with one or more of kerosene and alcohol is disposed in the container. 3. The control device for creeping pests according to claim 2, wherein an ingredient for attracting creeping pests is mixed in the insecticidal stock solution. 4. The control apparatus for a creeping insect pest according to claim 2, wherein the viscosity of the stock solution is 0.5 to 1,500 cP at 20 ° C. 5. A nonwoven fabric as a carrier for the insecticidal stock solution,
The control device for a creeping pest according to any one of claims 2 to 4, wherein one or more of paper, cloth, gel, and a liquid-absorbing polymer are used. 6. A method for controlling creeping pests using the control apparatus according to claim 1. Description: