JPS62129206A - Cockroach extermination agent - Google Patents

Abstract

PURPOSE:To obtain a cockroach extermination agent having excellent extermination effect at a low cost, by using boric acid as an insecticidal component, starch as a diluent component and rice bran and honey as attracting components. CONSTITUTION:The objective cockroach extermination agent contains 15-35(wt)% boric acid, 20-40% starch (preferably potato starch), 10-20% rice bran and 3-25% honey (preferably refined molasses). It may be added with 0.5-3% chrysalis powder, 0.5-3% fish meal and 3-25% brewery waste. The agent is produced by mixing the components, adding a proper amount of water to the mixture and forming to a desired shape after kneading.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an anthelmintic agent, and more particularly to a cockroach exterminator that effectively exterminates cockroaches as pests.

[Background of the invention]

Generally, methods for exterminating cockroaches include a method of spraying a stain on the cockroaches from outside the body, and a method of deworming the cockroaches before meals. In this case, the pesticide is made by adding fragrance, molding agent, etc. to the insecticidal ingredient and molding it into a specific dosage form.
It exterminates cockroaches by placing it in places where cockroaches are likely to infest, such as the kitchen and kitchen area, and feeding them.

Conventional household cockroach repellents (for edible use) that contain boric acid as the main ingredient are known;
The extermination effect is not always completely satisfactory.

It is no exaggeration to say that cockroaches have an excellent sense of smell and react keenly to subtle odors, and whether or not they will eat a pesticide depends on this subtle difference in smell. From this point of view, it has been proposed to add special attractants such as pheromones that physiologically attract cockroaches to pesticides, but such attractants are expensive and difficult to synthesize. Therefore, the cost of IJ1 increases significantly and it is not practical as a cockroach repellent widely used for household use.

[Summary of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a cockroach repellent that is low in cost and has an excellent exterminating effect.

As a result of repeated research focusing on the habits of cockroaches, especially their eating habits, the present inventor has combined starch as an insecticidal ingredient, an attractant, and rice bran and honey as attractant ingredients. It has been found that the attracting effect on cockroaches is significantly increased by containing it.

The present invention has been made based on the above discovery. In other words, the cockroach repellent according to the present invention contains boric acid 15 to 35%, starch 20 to 40%, and rice bran 10 to 10% by weight.
It is characterized by containing 20% and 3-25% of honey.

In addition to the above-mentioned main components, the cockroach repellent of the present invention may contain a small amount of an antifungal agent, a coloring agent, and the like as optional components. In addition, an appropriate amount of water is present in the pesticide, which is used as a solvent during the manufacturing stage.

[Detailed description of the invention]

The present invention will be explained in more detail below. In the following description, "%" indicating quantitative ratio is based on heavy suspended base unless otherwise specified.

First, in the pesticidal agent of the present invention, boric acid is used as an insecticidal component. The boric acid content Φ is preferably 15 to 35%.

Although starch is added as an excipient ingredient, it also has significance as a dietary ingredient. As the starch, potato starch and corn starch are preferably used, and in addition to these, corn starch, rice starch, etc. can be used. Potato starch is particularly desirable from the perspective of cockroaches' palatability. The preferred amount of starch added is
It is 20-40%. Two or more types of starch may be used as a mixture, or only one type of starch may be used.

In the present invention, a combination of rice bran and honey is contained as ingredients that attract cockroaches.

Furthermore, pupa powder, fish meal, and brewer's dregs (including yeast) may be added as necessary.

In the present invention, rice bran refers to the pericarp, ectosperm, seed coat, etc. that are turned into powder when brown rice is polished.

The preferred amount of rice bran added is 10 to 20%.

Honey and molasses (
The residual liquid obtained by evaporating mucus and separating sucrose crystals during sucrose production can be used, but in particular, sugar refining chambers (molasses produced when producing refined sugar from raw sugar) are preferably used. It will be done. The amount of honey added is preferably 3 to 25%.

Nectar as the above-mentioned component is an effective component in enhancing the attracting effect through synergistic effects with other components, but at the same time, it is useful in maintaining the pesticidal agent in a paste state during use. . Maintaining the pesticidal agent in a paste-like form is advantageous in that it is in a form that is easy for cockroaches to eat and at the same time effectively diffuses the odor of the active ingredient.

In addition to the above-mentioned components, the pesticidal agent of the present invention includes, as an optional component,
A trace amount of an antifungal agent, a coloring agent for preventing errors, etc. may be included. However, the amount of these trace components added should be suppressed to an extent that does not adversely affect the attraction effect.

In addition, an appropriate amount of water is present in the pesticide, which is used as a solvent during the manufacturing stage.

The cockroach repellent of the present invention can be manufactured according to conventional methods. That is, the pesticidal agent of the present invention can be obtained by mixing the above-mentioned components, adding an appropriate amount of water, kneading, and molding a specified amount into a desired shape.

[Embodiments of the invention]

EXAMPLES The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples.

Manufacturing example A pesticide composition having the following composition ratio was prepared.

Boric acid 15% potato starch 15% corn starch 12% rice bran
12% refined molasses 9%
Solvent (ordinary water) Suitable Colorant (tar pigment) Small amount Knead each of the above ingredients,
It was made into a paste.

Test Example 1 Using the pesticide produced in the above production example, a test for pest control effect was conducted under the following conditions.

Insect tested: German cockroach (Blattclla oermanica) Test method: Cockroaches were released into a container, the above insecticide was placed in a corner, and the insect was allowed to eat at will to see the effect.

A tin container with a bottom surface of 1.4 x 1.5 m and a depth of 150 mm was lined with kraft paper, and the inner wall of the container was coated with butter to a thickness of about 5 cm to prevent cockroaches from escaping.

In Yongding medium heat, two 45+m square plywood boards were stacked at an interval of about 1 cttt as a shelter, food and water were fixed in two corners, and about 100 insects were tested.

After leaving the test insects in the container for a day and night until they stabilized, the poisonous and non-poisonous baits were placed upside down to prevent the test insects from feeding on their own. From the next day, the mortality was observed and the effectiveness of the silkworm killer was evaluated based on the results. was determined.

Cumulative oral mortality female 50 8 20 48 50 50
50 Using the pesticidal agent produced in the above production example, an indoor pesticidal effect test was conducted under the following conditions.

66 pieces of exterminator (165gr>/33 pieces (2 pieces per piece)
(5J) were installed mainly around the inside of the h-ranter, in the refrigerator section, on televisions, in and under vending machines, etc.

Target: Insects: German cockroach (81attclla gcrmanica) Location: Yakitori restaurant floor area of 33 (4.45m x 7.40 TrL) Test method: Floor of the location where German cockroaches are found, behind vending machines and refrigerators, gas Installed covered pesticides around the microwave and other areas.

To determine the effectiveness, changes in the cockroach population after the mulberry removal installation were investigated using sticky traps.

First, the cockroach index (the number of catches per trap per day) was determined, and from this value, the reduction rate after chemical treatment was determined, and the effectiveness of the repellent was determined from this result.

/” As is clear from the above results, the number of cockroaches inhabiting the implementation site decreased by 60% after 2 to 3 weeks, by more than 80% after 3 weeks, and after 7 weeks, an extermination index of 90% was obtained. Ta.

Applicant's agent: Mr. Sato Procedure Valley 11 official book March 1986 Σ? Day

Claims (1)

[Claims] By weight: boric acid 15-35%, starch 20-40%
, 10 to 20% of rice bran, and 3 to 25% of honey.