JP2009062282A - Extermination method of cockroach - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for exterminating a cockroach by causing it to ingest an insecticidally effective component by a simple method. <P>SOLUTION: The extermination method of a cockroach comprises a first step of exposing a cockroach living body to a cockroach-exterminating preparation containing extracts of Chrysanthemum cinerariaefolium; a second step of attracting a living cockroach to a dead body of the cockroach formed by the first step; and a third step of causing the living cockroach to eat the dead body. Preferably, the cockroach-exterminating preparation is an aerosol and a cockroach is exposed thereto in an amount of 0.1-50 mg per one living cockroach in terms of the total amount of the insecticidally effective component contained in Chrysanthemum cinerariaefolium. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a new cockroach extermination method using a cockroach extermination preparation containing a licorice extract.

Conventionally, cockroach control using bait containing an insecticidal active ingredient has been carried out, and various ideas have been made on the combination of an insecticidal active ingredient and a dietary substance and a container for storing bait.
However, a bait containing an insecticidal active ingredient in an ordinary bait may have insufficient cockroach eating ability, and a cockroach attractant is further added to the bait. As attractants of cockroaches, there are known divergent substances (patent document 1) produced by adult cockroaches and attractant insecticides (poison bait) using cockroach excrement (patent document 2). Preparation of an attracting insecticide containing a substance requires examination of the mixing ratio of the attracting substance and the insecticidal active ingredient, and examination of formulation for molding, and it is not always possible to prepare it simply.

Japanese Patent Laid-Open No. 05-4904 Japanese Patent Application Laid-Open No. 04-342511

  In such a situation, the present inventors have studied to find a method for exterminating cockroaches by feeding an insecticidal active ingredient by a simple technique.

The present invention includes the following inventions.
[Invention 1]
A first step of exposing a cockroach-controlling formulation containing licorice extract to a cockroach organism;
A cockroach extermination method comprising a second step of attracting a live cockroach to a cockroach corpse produced in the first step; and a third step of feeding the corpse to the live cockroach.
[Invention 2]
The first step is to expose the cockroach control preparation containing the cockroach extract to the cockroach living body at a ratio of 0.1 to 50 mg per cockroach living body in terms of the total amount of the insecticidal active ingredient contained in the jojoba extract. The cockroach extermination method according to the first aspect, wherein
[Invention 3]
The cockroach extermination method according to invention 1 or 2, wherein the cockroach extermination preparation is an aerosol preparation.

  In the method for controlling a cockroach of the present invention, a carcass cadaver exposed to a cockroach control preparation containing a citrus extract serves as an attractant, so that not only a cockroach living body exposed to a cockroach control preparation containing a chopped extract Live cockroaches in the nest can also be removed. Therefore, the cockroach extermination method of this invention can acquire the outstanding cockroach extermination effect by a simple method.

  EXAMPLES Hereinafter, although an Example and a manufacture example are given and this invention is demonstrated in detail, this invention is not limited to these examples.

  In the present invention, cockroaches to be controlled include, for example, German cockroach (Blattella germanica), Black cockroach (Periplaneta fuliginosa), American cockroach (Periplaneta americana), Great cockroach (Periplaneta brunnea), Great cockroach (Blatta orientalis) and the like. It is done.

  The licorice extract used in the present invention is extracted from a pesticide that is a naturally occurring plant. Several types of insecticides are known, but Chrysanthemum cinerarifolium is representative. The licorice extract usually contains the following six types of insecticidal active ingredients, and the total amount of the pesticidal active ingredient (hereinafter referred to as AI amount) is usually 10 to 90% by weight in the citrus extract. , Preferably 20 to 80% by weight.

  In the present invention, the preparation form of a cockroach control preparation (hereinafter referred to as the present control preparation) containing licorice extract is not particularly limited, but it is usually mixed with a liquid carrier and / or a gaseous carrier as necessary. It is prepared by adding an auxiliary for preparation such as a surfactant. Specific examples include emulsions, oil preparations, aerosol preparations, carbon dioxide preparations, etc. These preparations may be used in the form of incense sticks, heat transpiration agents, fumigants, fumigants, poison baits, sheets, etc. is there. As this extermination formulation, since it can be easily exposed to a cockroach living body, a formulation that is used by diluting a licorice extract with a liquid carrier is preferable, and an aerosol formulation containing oleum extract Is more preferable.

  Examples of the liquid carrier used in the present pesticide preparation include aromatic or aliphatic hydrocarbons (xylene, toluene, alkylnaphthalene, phenylxylylethane, kerosene, light oil, hexane, cyclohexane, etc.), halogenated hydrocarbons (chlorobenzene). , Dichloromethane, dichloroethane, trichloroethane, etc.), alcohols (methanol, ethanol, isopropyl alcohol, butanol, hexanol, ethylene glycol, etc.), ethers (diethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl) Ether, tetrahydrofuran, dioxane, etc.), esters (ethyl acetate, butyl acetate, etc.), ketones Acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.), nitriles (acetonitrile, isobutyronitrile, etc.), sulfoxides (dimethyl sulfoxide, etc.), acid amides (N, N-dimethylformamide, N, N-dimethylacetamide, etc.) ), Vegetable oils (soybean oil, cottonseed oil, etc.), plant essential oils (orange oil, hyssop oil, lemon oil, etc.) and water. Examples of the gaseous carrier (propellant) include butane gas, freon gas, LPG, dimethyl ether, carbon dioxide gas, and the like.

When the present extermination formulation is an aerosol formulation, an aerosol stock solution can be prepared by mixing the chrysanthemum extract and the above liquid carrier. An aerosol formulation can be prepared by injecting the aerosol stock solution into an aerosol can and mounting an aerosol valve, followed by filling with a propellant.
In the present invention, in the case of an aerosol preparation, the amount of the chrysanthemum extract is 0.01 to 2% by weight, preferably 0.1 to 1% by weight in the aerosol preparation.
Moreover, the mixing ratio of the aerosol stock solution and the propellant can be arbitrarily set between 9/1 and 1/9, but is preferably 8/2 to 2/8.

The first step in the cockroach extermination method of the present invention is a step of exposing the exterminating preparation to a cockroach living body, and preferably the exposure is performed at a ratio of 0.1 to 50 mg as an AI amount per living cockroach. When the present extermination preparation is an aerosol preparation, the injection amount is usually 0.1 to 20 g / second, preferably 0.4 to 10 g / second as the amount of the aerosol preparation, and the AI amount is 0.05 to 200 mg. / Sec. In addition, the average particle diameter of the droplet when spraying aerosol is usually 5 to 100 μm, and preferably 20 to 80 μm.
When using an aerosol preparation containing a cypress extract and exposing it to a cockroach organism, it is usually sprayed for 0.1 to 20 seconds per cockroach organism.

  The second step in the cockroach extermination method of the present invention is a step of attracting raw cockroaches to the cockroach cadaver produced in the first step. It becomes an attractant. The place where the second step is performed is not particularly limited, but is preferably a dark place, and more preferably a cockroach habitat, a feeding place or a moving passage. The second step is to attract a cockroach corpse produced by exposing a sufficient amount of the present exterminating preparation to an individual of a cockroach that is the same or different from the cockroach cadaver, and the cockroach cadaver is arranged. The place where the individual cockroach individual attracts (hereinafter referred to as the attracting place) may be a place different from the exposed place in the first step or the same place. If the attracting location in the second step is different from the exposure location in the first step, the worker may arrange the cockroach corpse as it is or in a disassembled state. You may knock down at the attracting place of a 2nd process, and adjust the exposure amount of this extermination preparation suitably so that it may die.

  The third step in the cockroach extermination method of the present invention is a step of feeding the cockroach corpse to the raw cockroach attracted in the second step, and not only the cockroach living body exposed to the extermination formulation but also the nest Live cockroaches can be removed. Usually, the range of 1 to 20 live cockroaches is preferable per 1 carrot carcass, and the range of 1 to 10 is more preferable.

In the examples, Jochugi extract was used in accordance with “Insecticide Guidelines” (1990 edition, supervised by the Ministry of Health and Welfare Pharmaceutical Affairs Bureau, examination section 2, published by Nihon Yakugyo Shimbun), page 49. .
Formulation Example 1
An aerosol stock solution was prepared by mixing 2.50 g of licorice extract (AI concentration = 50.5%) and 63 mg of 2,6-di-t-butylphenol with 164 g of No. 1 kerosene. This aerosol stock solution and 45 g of liquefied petroleum gas were filled into a 300 mL capacity aerosol can to prepare a cockroach control formulation in the form of an aerosol. The spray amount of this aerosol preparation was 1.1 g per second.

Formulation Example 2
A predetermined amount of licorice extract is dissolved in 100 ml of No. 1 kerosene to prepare an aerosol stock solution having an insecticidal active ingredient content of 0.15% by weight. The aerosol stock solution and 100 ml of liquefied petroleum gas (propane / butane) are filled in an aerosol can and further pressurized with nitrogen to prepare a cockroach control formulation in the form of an aerosol.

Example 1
An adult living body (3 males and 3 females) of black cockroach (Periplaneta fuliginosa) was placed in a polyethylene cup (diameter 12 cm, height 10 cm). The aerosol of Formulation Example 1 was sprayed from above about 50 cm for 4 seconds onto the black cockroach in the container. Then, after confirming that all cockroaches stopped moving, the dead bodies of black cockroaches were taken out from the cup, transferred to another polyethylene cup (diameter 12 cm, height 10 cm), and left for about 3 hours.
Next, a polyethylene cup (12 cm in diameter and 10 cm in height) containing a degreased bowl moistened with water and a folded cardboard for forming a dark place is prepared. 1 male and 1 female) and adult black-breasted cockroach (3 males and 3 females) were placed, and a lid for escape prevention with a small hole for ventilation was attached.
The cup was stored at 25 ° C., and the state in the cup was observed. (The test was performed in triplicate.)
As a result of observation on the 14th day after the test, the dead bodies of the black cockroach put at the start of the test were disjoint, and the dead insect rate of the black cockroach put at the start of the test was 83%.

Comparative Example 1
Prepare a polyethylene cup (diameter: 12 cm, height: 10 cm) containing degreased rice cake moistened with water and folded cardboard to form a dark place, and freeze at -20 ° C (1 hour). Incorporated dead carcass (one male and one female) and adult male black cockroach (three males and three females), and attached a lid for escape prevention with a small hole for ventilation. .
The above cup was stored at 25 ° C., and the state of the living body of black cockroach in the cup was observed. (The test was performed in triplicate.)
As a result of observation on the 14th day after the test, the dead bodies of black cockroaches put at the start of the test were scattered, and the dead insect ratio of the black cockroaches put at the start of the test was 0%.

  The cockroach extermination method of the present invention can obtain an excellent cockroach extermination effect by a simple method.

Claims (3)

A first step of exposing a cockroach-controlling formulation containing licorice extract to a cockroach organism;
A cockroach extermination method comprising a second step of attracting a live cockroach to a cockroach corpse produced in the first step; and a third step of feeding the corpse to the live cockroach. The first step is to expose the cockroach control preparation containing the cockroach extract to the cockroach living body at a ratio of 0.1 to 50 mg per cockroach living body in terms of the total amount of the insecticidal active ingredient contained in the jojoba extract. The method for exterminating cockroaches according to claim 1, wherein The cockroach control method according to claim 1 or 2, wherein the cockroach control formulation is an aerosol formulation.