JP2002284610A - Cockroach attractant and cockroach attracting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an effective cockroach attractant. SOLUTION: The cockroach attractant contains an aggregation pheromone of cockroaches (one or two or more compounds selected from a group of 1- dimethylamino-2-methyl-2-propanol, dimethylamine, trimethylamine, diethylamine, triethylamine, and their salts) and a dietary attractant (one or two or more compounds selected from a group of 3-hydroxy-2-methyl-4-pyrone, 3-hydroxy-2- ethyl-4-pyrone, 2-hydroxy-3-methyl-2-cyclopenten-1-one and their derivatives).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cockroach attractant and a method for attracting cockroaches.

[0002]

2. Description of the Related Art In order to attract and capture cockroaches, various natural and synthetic substances have conventionally been used as food attractants. Specifically, rice bran, vegetables, feed for animal breeding, and extracts thereof are used. JP-A-9-77615 discloses a cockroach repellent containing a cockroach attractant containing a pyrone-based compound and a cyclopentenolone-based compound as a main component.

[0003]

However, the effect of these food attractants and cockroach attractants to attract cockroaches has not always been satisfactory. As a result, there is a limit in capturing and controlling cockroaches. Therefore, a cockroach attractant and a cockroach attracting method that are significantly more effective than conventional cockroach attractants are desired. The present invention
The present invention has been made to solve such a problem, and an object of the present invention is to provide a cockroach attracting agent containing a cockroach attracting substance, which has a significantly higher attracting effect than a conventional cockroach attracting agent.

[0004]

Means for Solving the Problems The present inventors have developed a cockroach attracting effect when a cockroach collecting pheromone or a food attractant alone is used as a cockroach attracting pheromone or a cockroach attracting agent containing a food attractant. They found that the cockroach attracting effect was significantly higher than that of the present invention, and completed the present invention.

That is, the cockroach attractant of the present invention is characterized by containing a cockroach gathering pheromone and a cockroach food attractant, and the cockroach attracting method of the present invention comprises a cockroach attracting agent containing a cockroach gathering pheromone, and a cockroach attractant. The method includes simultaneously using a cockroach attractant containing a food attractant, or spraying a cockroach aggregate pheromone, and spraying a cockroach food attractant.

As the cockroach attractant and the food attractant used in the cockroach attracting method of the present invention, there are food-derived components and synthetic compounds. Ingredients derived from food include fatty acids, esters thereof, and related alcohols. Specifically, fatty acids include myristic acid, palmitic acid, stearic acid, oleic acid, n-caprylic acid, esters include methyl myristate, ethyl myristate, ethyl palmitate, and related alcohols include oleyl alcohol and glycerol. Can be. Synthetic compounds include 3-hydroxy-2-alkyl-4-pyrone, methylcyclopentenolone, and derivatives thereof. As derivatives,
Examples thereof include compounds such as methylcyclopentenolone butyrate and methylcyclopentenolone-3,4-dioxy-5-methoxy-isopropylbenzene. One or more substances selected from the group of these food attractants can be used as the active ingredient. on the other hand,
The cockroach attracting pheromone used in the cockroach attracting agent and the cockroach attracting method of the present invention includes 1-dimethylamino-2-methyl-2-propanol, dimethylamine, trimethylamine, diethylamine, and triethylamine, and salts thereof. One or more selected substances can be used.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present application, the term "cockroach" refers to a species belonging to the taxonomic order of the order Cockroach, for example, Blattella germanic.
a), cockroaches (Peripalaneta americana), black cockroaches (Periplaneta japanna), black cockroaches (Periplaneta suzukii), and the like, but are not limited thereto.

[0008] In the present application, the term "assembled pheromone" refers to a volatile chemical substance produced in the body of a cockroach, which has the effect of bringing together males and females of the same species, regardless of whether they are adults or larvae. And its use includes both natural and synthetic ones. Specific examples of the aggregation pheromone include 1-dimethylamino-2-methyl-2- used in the present invention.
Mention may be made of propanol, dimethylamine, trimethylamine, diethylamine, and triethylamine, and salts thereof. The salt of the aggregated pheromone is not particularly limited as long as it does not affect the stability and function of the aggregated pheromone, and examples thereof include hydrochloride, sulfate, and nitrate.

[0009] Further, in the present application, the term "diet attractant" refers to a component contained in food, an odor component of food,
And similar aromatic synthetic compounds,
A cockroach is a volatile chemical substance used as a clue when recognizing the presence or absence of food, and the position and direction of food. Specific examples of food attractants include proteins, amino acids, lipids, or carbohydrates derived from animals or plants, or extracts thereof, or a combination thereof. (Proteins and amino acids) and processed food derived therefrom (eg, bonito), lipids such as body fat and butter, plant-derived fats (eg, coconut oil) and the like. Specifically, among the dietary attractants contained in food, those having high attraction activity include myristic acid, stearic acid,
Fatty acids such as oleic acid and n-caprylic acid; esters such as methyl myristate, ethyl myristate and ethyl palmitate; oleyl alcohol; glycerol;

Further, examples of the food attractant include a flavor component (flavor component) extracted or synthesized by heat-treating various animal or plant-derived substances with an oily solvent such as oil or fat. . Such flavor components include, for example, cyclopentenone-based compounds, and the cyclopentenone-based compounds include 2-hydroxy-3-methyl-2- used in the present invention.
And cyclopentene.

[0011] The food attractant can be prepared as a solution by heating the above-mentioned various animal or plant-derived substances and the like, optionally together with a solvent such as an organic solvent, and the solution is concentrated under reduced pressure. By doing so, it can be prepared as a concentrated extract. Further, by removing the solvent from these solutions, the food attractant can be obtained in liquid or solid form. The food attractant used in a preferred embodiment of the present invention is commercially available 3-hydroxy-2-methyl-4-pyrone, 3-hydroxy-2-ethyl-4-pyrone, and 2-hydroxy-3-methyl-pyrone. 2
-Cyclopenten-1-one can be used (JP-A-9-77615).

[0012] In the case of dimethylamine, trimethylamine, diethylamine and triethylamine, the aggregated pheromone used in the preferred embodiment of the present invention may be those manufactured and sold by various companies. On the other hand, when 1-dimethylamino-2-methyl-2-propanol is used as an assembly pheromone, this compound can be synthesized as follows. As starting material, acetone cyanohydrin is used. This is mixed with NaBH ₄ in methanol at room temperature in the presence of Co ²⁺ and hydrochloric acid is added to add HCN.
The gas was evacuated and made basic by the addition of potassium hydroxide, which was then filtered to give 1-amino-2-methyl-
Obtain 2-propanol. Next, formaldehyde and formic acid are added thereto, and the mixture is refluxed, and then concentrated under reduced pressure to remove formic acid and formaldehyde. Next, an aqueous solution of potassium hydroxide is added to make the mixture basic, and 1-dimethylamino-2-methyl-2-propanol is extracted with ether.

The cockroach attractant of the present invention can take various forms as appropriate depending on the properties and conditions of the food attractant and the collected pheromone used, the place where the cockroach attractant is applied, and the method of application. it can. For example, it can be a liquid agent, a solid agent, a paste, an aerosol, or the like.

Various additives can be added to the cockroach attractant of the present invention depending on the form thereof, and they are contained in the cockroach attractant within a range and in an amount that does not adversely affect the effect of the cockroach attractant. Can be compounded.
Examples include insecticides, bactericides, preservatives, flavoring agents, coloring agents, accidental ingestion inhibitors, film formers, emulsifiers, dispersants, wetting agents, stabilizers, propellants and the like.

The cockroach attractant of the present invention contains an aggregate pheromone and a food attractant, and the amount of the aggregate pheromone and the food attractant as active ingredients in the attractant depends on the dosage form and application method. It can be appropriately determined by those skilled in the art.

The present invention further provides a cockroach attracting method including using the cockroach attracting agent of the present invention. In the method, the cockroach attracting agent is sprayed as appropriate according to the application place and the like. , Spray or apply,
Alternatively, a material applied to a sheet or the like can be attached.

In the cockroach attracting method of the present invention, the collected pheromone and the food attractant can be separately prepared in advance, and each can be independently applied in a separate step. The intervals between the subsequent steps are not particularly limited as long as the effects of the spraying by the previous step are not substantially eliminated. Therefore, even if spraying the aggregation pheromone after spraying the food attractant first,
Alternatively, it is possible to spray the collective pheromone first and then spray the food attractant, or to see the effect of the first spraying and further spray the same substance according to the effect, or It is also possible to decide whether to spray one substance.

[0018]

EXAMPLES (Example 1) A cockroach attracting test was performed using a combination of an aggregation pheromone and a food attractant shown below. 1) A mixture of 1-dimethylamino-2-methyl-2-propanol (hereinafter, referred to as Dp) and 3-hydroxy-2-methyl-4-pyrone (hereinafter, referred to as Hm) (mixing ratio = 1: 3, 1: 1 and 3: 1); 2) Dp and 1: of 3-hydroxy-2-methyl-4-pyrone and 2-hydroxy-3-methyl-2-cyclopenten-1-one. 1 (hereinafter referred to as Hm / Mc) (mixing ratio = 1: 3, 1: 1, and 3: 1).
3) trimethylamine hydrochloride (hereinafter referred to as Ta) and H
m) (mixture ratio = 1: 3, 1: 1, 3: 1); 4) a mixture of Ta and Hm / Mc (mixture ratio = 1: 3,
5) Dp only; 6) Ta only; 7) Hm only; 8) Hm / Mc only. In total, 16 types were used.

(Test Method) The cockroach attracting test was performed as follows. First, 30 adult German cockroaches (male: 15 and female: 15) were placed in a shelter of a plastic container having a bottom surface of 50 cm × 40 cm and in which food and water were arranged. After confirming that all the cockroaches to be tested were buried in the shelter, a box trap containing a filter paper treated with the test inducing substance (test section) or a box trap containing an untreated filter paper (control section)
Was placed equidistant from the shelter. This box-shaped trap has a size of 13 cm × 6.5 cm × 1.5 cm (height), and has an inner bottom surface serving as an adhesive surface. On the adhesive surface, a filter paper treated with an attractant or an untreated filter paper is disposed. Here, the treatment of the filter paper with the attractant is 200 μl of a 1% ethanol solution of any of the above attractant combinations on a filter paper of 3 cm × 3 cm.
(Equivalent to 2 mg of attractant) It was performed by dropping. Place a box trap near the shelter,
The condition was maintained for a long time and under dark conditions, and then the number of cockroaches captured in each box trap was counted. This test was performed five or six times. For each test, EPI = (number of test plot insects-number of control plot insects) / (number of test plot insects +
The surplus ratio coefficient (EPI) given by (control insect count) was determined. Table 1 shows the average values in all the tests. Here, the maximum EPI value of +1 is when all the cockroaches are captured in the test plot, while the minimum EPI value of -1 is when all the cockroaches are captured. It means that it was captured in the ward. The obtained EPI value is in the range of -1 to +1.

[0020]

[Table 1]

In Table 1, the surplus ratio coefficients obtained when the attracting test was performed using the aggregate pheromone alone or the diet attractant alone were respectively shown in the left column of the table (Dp: 0.46, Ta: 0.27),
And the upper column (Hm: 0.39, Hm / Mc: 0.46). Then, the surplus ratio coefficient when the aggregate pheromone (two types) and the food attractant (two sets) are combined at a ratio of 1: 3, 1: 1, or 3: 1 is expressed as the aggregate pheromone and the food attractant. In the lower column of the mixing ratio. For example,
The surplus ratio coefficient when the aggregation pheromone Dp and the food attractant Hm are mixed at a ratio of 1: 3 is 0.43. As shown in Table 1, the EPI value when the aggregate pheromone and the food attractant were combined was generally higher than the EPI value when the aggregate pheromone alone or the food attractant was used alone. Also, these results, as the proportion of the aggregation pheromone in the cockroach attractant of the present invention increases,
This shows that the EPI value also tends to increase. This tendency is remarkable when two kinds of food attractants are used in combination with the aggregation pheromone.

[0022]

Since the cockroach attractant of the present invention contains an aggregated pheromone in addition to a food attractant, its cockroach attracting effect is significantly higher than that of the conventional cockroach attractant. Has become. Further, according to the cockroach attracting method of the present invention, not only the effect is significantly increased as compared with the conventional cockroach attracting method, but also the application amount of each component of the cockroach attractant and the application order can be changed more flexibly. Therefore, there is an effect that it is possible to save costs. That is, it is possible to spray a material having a lower preparation cost first, and to spray a material having a higher preparation cost after observing the result of the previous spraying, which has a cost advantage.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 33/08 A01N 33/08 35/06 35/06 (72) Inventor Yasuhiro Tomioka 1 Akanehama, Narashino-shi, Chiba -12-3 Ikari Disinfection Co., Ltd. Engineering Center (72) Inventor Atsushi Shibayama 1-12-3 Akanehama, Narashino-shi, Chiba F-term (reference) in Ikari Disinfection Co., Ltd. Engineering Center 2B121 AA17 BA01 BA11 BA36 CC12 CC14 4H011 AC07 BA01 BA06 BB04 BB05 BB08 BC03 BC19 DA07 DF06 DH10

Claims (4)

[Claims] 1. A cockroach attractant comprising a cockroach assembling pheromone and a cockroach food attractant. 2. The cockroach food-attracting substance is 3-
Hydroxy-2-methyl-4-pyrone, 3-hydroxy-2-ethyl-4-pyrone, and 2-hydroxy-3-
The cockroach attractant according to claim 1, which is one or more compounds selected from the group consisting of methyl-2-cyclopenten-1-one and derivatives thereof. 3. The cockroach aggregate pheromone is 1
-One or more compounds selected from the group consisting of-dimethylamino-2-methyl-2-propanol, dimethylamine, trimethylamine, diethylamine, and triethylamine, and salts thereof. 3. The cockroach attractant according to 1 or 2. 4. A method for attracting cockroaches, comprising the steps of spraying a cockroach aggregate pheromone and spraying a cockroach food attractant.