JPH082770B2 - Cockroach attractant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an attractant for collecting and capturing cockroaches.

[Problems to be Solved by Prior Art and Invention]

BACKGROUND ART It has been conventionally known that the pests such as cockroaches have their secretions, feces or extracts thereof collectively attract fellows of the same type. Then, it has been proposed to utilize such a property to capture cockroaches (see, for example, Japanese Patent Publication No. 40-18518). At the same time, in order to capture and exterminate cockroaches by such a method, a large number of cockroaches are required, and it is extremely difficult and impractical to collect a large amount of insect feces. In addition to these, myristines, methyl or ethyl esters of fatty acids such as palmitic acid (Japanese Patent Publication No. 44-320), saturated or unsaturated aliphatic alcohols (Japanese Patent Publication No. 41-11920), non-reducing starch Hydrolysis (JP-A-50-88235), carboxylic acid ester having cyclohexyl group (JP-A-50-88234), aromatic aromatic ketone, alcohol, aldehyde, lactone, ester (JP-A-50-88234) -49434, 50
-53540), aloe plants and extracts (JP-A-61)
-291505 gazette), eucalyptus leaves or extracted components thereof,
Ketones having 7 to 9 carbon atoms (JP-A-62-114904), vanillin, ethylvanillin, isovanillin, piperonal, piperonal acetone, 2,6-nonadienal, 2,6-nonadienol (Japanese Patent Publication No. 54-11367). Issue),
Persimmon bud seed oil, iris seed oil, sardine seed oil, darumahugi seed oil (JP-A-62-135403), pine and seaweed (JP-A-50-125041), sesame oil (JP-A-53-91140) ), General formula [Wherein R ₁ represents a linear or branched alkyl group having 3 to 7 carbon atoms, R ₂ represents a hydrogen atom or a methyl group, and R represents a hydroxyl group or an amino group]. ] (Japanese Patent Application Laid-Open No. 63-96101) and a large number of natural or synthetic compounds have been proposed as attractants for cockroaches. However, none of these substances can be practically used satisfactorily because they have a weak attracting action or are expensive and difficult to produce. As those utilizing food, milk, cheese, krill powder, powder sample, bran, wheat flour, wood flour or a mixture thereof (JP-A-62-278930), gelatin, fish protein, animal protein such as casein, Animal meat, animal substances such as animal meat extract, alkali, an enzyme hydrolyzed extract and glucose, fructose heated reaction product (JP-A-57-95904), soybean, corn, cottonseed, A composition obtained by acid-decomposing, then concentrating and neutralizing defatted meal of grains such as seeds and sesame (JP-A-53-15424), a mixture of fish meal, wheat flour, soybean meal, rice bran, feed yeast and sesame oil meal (special Kaikai No. 54-132237) and the like have been proposed, but they are likely to deteriorate and have a problem in the duration of effect.

[Means for solving the problem]

In view of the present circumstances as described above, the present inventors have examined the many substances in order to find an attractant for cockroaches, which is excellent in attracting cockroaches, and is easily and easily obtained. Water extracts of plants have excellent effects in common regardless of cockroach larvae, adult sexuality, sex, and cockroach species, and particularly excellent effects on German cockroach larvae And completed the present invention.

That is, the present invention relates to a cockroach attractant characterized by containing an extract of a plant of the genus Hawthorn as belonging to the family Rosaceae as an active ingredient.

The cockroach attractant of the present invention, by using a hawthorn plant pair extract, has a long duration of effect that is unlikely to deteriorate, and has an attracting effect at a distance of about 10 times or more of the body length of cockroaches, and attracting speed It is very quick within 3 minutes, and has a property that the attracted cockroaches have a long holding effect of 10 to 30 minutes, and can effectively attract cockroaches.

As the hawthorn used in the present invention, any type of hawthorn plant (Rosaceae) can be used as long as it is a plant, for example, hawthorn, red hawthorn, Kuromi sanzashi, Ezo sanzashi, Arage sansaku, birch hawthorn, Hawthorn Hawthorn, Broadbill Hawthorn, Killer Hawthorn, Keho Hawthorn, Horiba Hawthorn, Ohwa Hawthorn,
The hawthorn, the red hawthorn, the hawthorn, etc. can be illustrated. The extract used in the present invention should be extracted after crushing hawthorn plants in the presence of water or various organic solvents, for example, in a temperature range of about 10 to 90 ° C. while stirring for about 0.5 to 5 hours. Can be easily obtained. In the above extraction, water or an organic solvent to be used can be used alone or in combination of two or more kinds. The amount of water or organic solvent used is usually about 1 to 20 times the weight of the crushed hawthorn. Further, if necessary, it can be used after concentrating to an appropriate concentration. The extract thus obtained is
Although it can be used as it is as a cockroach attractant, it may be adsorbed, mixed or dispersed in a suitable carrier or food. Moreover, you may mix and use an insecticide, a bactericide, etc. with the cockroach attractant of this invention.

The effective use amount of the cockroach attractant of the present invention shows an attracting effect even in a small amount, so that the use amount thereof is not particularly limited.

The reason why the cockroach attractant of the present invention exhibits a very effective attracting action to cockroaches is not clear at present, but one component or multiple components in a hawthorn plant strongly participate in the attracting action. It is thought that it is doing.

〔Example〕

Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

Example 1 (Attracting action on German cockroaches and American cockroaches) FIG. 1 is a schematic rear view of an experimental apparatus when testing German cockroaches, and FIG. 2 is a side view when testing American cockroaches.

In the center of the plastic bat 1 measuring 31 × 37 cm,
In the case of the German cockroach, two pieces of filter paper with a size of 3.8 × 10 cm are folded into a W shape and placed vertically in the bat about 15 cm apart as shown in FIG. The water extract sample was dropped at 4 points with a Pasteur pipette, and the other filter paper 3 was used as a control filter paper on which the sample was not dropped. Sixty-five young German cockroach larvae or 20 male and female adult German cockroaches, 20 in total, were released in the vat, and 3 minutes after the cockroaches were released, it was examined which filter paper was collected. In the case of the American cockroach, two 7.5 x 10 cm tri-fold filter papers are placed in the center of a plastic bat 1 of the same size, about 15 cm apart, and one filter paper 2 is hawthorn. A sample of the fruit water extract was dropped on three Pasteur pipettes, and the other filter paper 3 was used as a control filter paper on which the sample was not dropped. As in the case of the German cockroach, 20 adult males and 20 females were released in total, and after 3 minutes, it was examined which of the filter papers they had collected. The results are shown in Table 1.

As shown in Table 1, as the amount of hawthorn extract added increased, the rate of cockroaches attracted to the filter paper containing the sample increased. In particular, the effect was great for the German cockroach larvae with a small addition amount. From this, it is clear that using a hawthorn extract as a cockroach attractant is an extremely effective means.

[Brief description of drawings]

FIG. 1 is a schematic back view of the experimental apparatus when testing German cockroaches, and FIG. 2 is a schematic side view when testing American cockroaches. 1 ... Plastic vat 2 ... Filter paper with hawthorn extract added 3 ... Control filter paper

Claims (1)

[Claims] 1. A cockroach attractant comprising an extract of a hawthorn plant of the family Rosaceae as an active ingredient.