JPH03133904A - Insect pest-repellent - Google Patents

Abstract

PURPOSE:To provide an insect pest repellent composition by forming phenyl ether or benzyl ether together with a higher fatty acid, a derivative thereof, amino acid derivative, saccharide derivative, natural wax, synthetic resin, etc., into a compatibilized solid, film, capsule, etc. CONSTITUTION:An insect pest repellent especially active against cockroaches without deteriorating the functions of communication equipments, computers, precise OA equipments, etc., and low toxic against human and livestock. For the solidification of the active ingredient or for the adjustment of the release rate of the ingredient, the ingredient may be dissolved in a higher fatty acid, a derivative thereof, an amino acid derivative or a saccharide derivative, (e.g. benzylidene sorbitol) or mixed with an inorganic sulfate salt powder to gel or solidify or microcapsuled with gelatin, etc. The repellent can be impregnated and mixed into a fiber sheet, tape, etc.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to 17 living pests such as cockroaches, flies, grasshoppers, house dust mites, agricultural and forestry pests such as aphids, plant hoppers, mites, and insects, or ants, burrs, centipedes, etc. The present invention relates to a repellent for general pests, and particularly to a repellent composition useful as a repellent for cockroaches and ants.

[Conventional technology]

Many types of pest control agents have been used in the past as agricultural and forestry pest insecticides.

Among these agricultural insecticides, pharmaceutical insecticides that are less toxic to humans and livestock are selected as sanitary pest insecticides, and their use is permitted.

In addition, voluntary regulations have been put in place for its use as an unpleasant pest control agent against general pests such as dust mites, ants, and burrs.

On the other hand, in recent years, further research has been carried out, and conventional techniques include physical trapping such as adhesives, adding attractants to this to double the effect, and disrupting the growth physiology of the insect growth stages of spawning, emergence, and emergence. Growth inhibitors have also begun to be used as new control agents.

Furthermore, through the use of bioengineering using microorganisms,
BT agents that utilize the insecticidal power of crystalline toxins produced in bacterial cells such as B. batinirustinylingens, the use of insect individuals that have been sterilized to spawn by their natural enemies, and pheromones possessed by insects, particularly sex pheromones, or pheromones that utilize communication agitation. When used in combination with insecticides and insect trapping equipment, it has shown good effects without destroying the environmental ecosystem.

In addition, there is a history of the use of plant-derived pyrethrin, rotinone, nicotine, etc., and in recent years, genetic manipulation, cell fusion, tissue culture, etc. The development progress in terms of usage, etc. is remarkable.

Insects grow according to the laws of nature, and pose harmful effects to humans and livestock, such as agricultural and forestry crops, the living environment of humans and livestock, and industrial materials.In order to prevent this, repellents are needed. This is the most rational control method.

Benzaldehyde, benzyl benzoate, butylethylpropanediol, butopyronoxyl, butylacetanilide, and butylcarpitol acetate have traditionally been used as pest repellents for agricultural and forestry crops.

Butoxypolypropylene glycol, chlorfluamide, citronellol, cresol, dibutyl adipate,
Dibutyl phthalate, dibutyl succinate, dimethyltoluamide, diethyltoluamide, dimethyl phthalate, diphenylamine.

Ethylhexanediol, diethylchlorobenzamide, octahydrodibenzofurancarbaldehyde, dipropylpyridine urupoxylate, octathioethanol, β-naphthol, phenylcyclohexanol, tetrahydrothiophene.

It contains geraniol, terpenoids, etc., and is widely used.

[Problem to be solved by the invention]

Cockroaches, which are the target pests of the present invention, are also called aphids and are a general term for insects belonging to the order Orthoptera, suborder Cockroaches, and there are many types of them and they are widely distributed throughout the world.

However, although they originally live in the tropics and subtropics, due to the development of transportation, Japan now has about 30 species (7 families, 18 species).
(species) and most of them live outdoors, but with the recent introduction of indoor heating equipment and an abundance of food, their distribution and population density have expanded. In particular, black cockroaches, German cockroaches, Japanese cockroaches, and American cockroaches mainly inhabit people's homes, and they are considered important sanitary pests because they like filth and spread pathogens.

In addition, with the recent development of office automation, large numbers of individuals can be found in various OA equipment such as computers and pumps, which are perfect habitats due to the atmosphere inside the building and the appropriate temperature inside the equipment. began to exhibit interference with the equipment's functionality. Furthermore, many different types of box-shaped food and beverage vending machines are now being installed due to their simplicity, and cockroaches have started to appear in these machines as well. To prevent this, when using insecticides, special methods such as spraying into closed equipment must be used, such as poison baits and insect repellent sheets. In addition, the remaining pest corpses after killing the insects becomes a secondary problem, and ultimately must be removed manually. From this point of view,
Although the use of repellents is highly effective, the known pest repellents mentioned above are still lacking in terms of efficacy, sustainability, and toxicity to humans and animals, and the development of completely new substances is currently underway. Ta. In addition, the damage caused by ants, which mainly harm outdoor communication circuit equipment, has caused great damage to the modern information society, and countermeasures have been needed.The present invention solves this difficult problem. be.

[Means to solve the problem]

The pest repellent composition of the present invention is characterized by containing phenyl ether or benzyl ether.

Depending on the purpose, phenyl ether or benzyl ether can be used as a compatible solid substance, film, clathrate, encapsulated product, or shaped product with higher fatty acids and their derivatives, amino acid derivatives, sugar derivatives, natural waxes, and synthetic resins. It can be used as a material, or as a material impregnated with a natural or synthetic fiber composition and shaped.

[Effect]

The present invention is based on the discovery that phenyl ether or benzyl ether has an outstanding repellent effect on pests, especially cockroaches and ants.

Ants are insects that belong to the order Hymenoptera, the superfamily Trichidae, and the family Formicidae, and they live a family-like social life centered on female workers. There are about 10,000 species worldwide, and more than 300 species in Japan, but around the residential environment, there are about 30 species in southern Japan and 10 to 2 species in northern Japan.
0 species can be seen. Stinging ants are a species belonging to the subfamily Chiliidae, and the representative species is the carpenter ant.

Most ants do not sting, but they release chemicals including formic acid from their legs.

Ants found around houses include red-eared ants, house ants, carpenter ants, and wood ants, and ants such as brown ants, carpenter ants, carpenter ants, and black-spined ants, which nest in decaying tree trunks and dead branches, nest inside outdoor telegraph equipment, such as connection terminal boxes. This often damages the communication covering, paralyzing communication functions and causing major damage. Ants can be exterminated around houses by spraying organic phosphorus and carbamate insecticides for epidemic prevention, but indoors they can be exterminated using aerosols containing pyrethroid compounds. To prevent them from entering your home, inspect the inside and outside of your home and repair any rotting wood or apply preservatives to prevent them from building nests. It is also effective to place propoxur granules in a strip around the house, deeply plow the surrounding land, supply honeydew, which is food for ants, and exterminate aphids parasitic on surrounding plants. be. In addition, similar to cockroaches, those that nest in rotten parts of tree trunks should be treated with chemicals that are safe for the sealed systems of communication equipment, and are safe for the many types of materials used in communication equipment, and are safer from the standpoint of toxicity than those that have anticidal properties. It is preferable to use repellent materials. From this point of view, it is most effective to use a composition containing the phenyl ether or benzyl ether of the present invention as a main component.

Phenyl ether and benzyl ether are completely new as such functional materials.

The toxicity values of these two substances are rat oral acute toxicity LI) so
is 3370mg/kg and 2500mg/kg, which is very toxic compared to L Dio1376mg/kg of fenitrothion (MEP dimethyl-4-nitro-m-tolyl phosphorothionate), which is considered to be a low toxicity pharmaceutical insecticide. It is less safe.

These ethers will be described below.

1. Phenyl ether (also known as 1.1'-oxybisbenzene, diephenyl ether, diphenyl oxide) (c@H5) 20, molecular weight 170.20. Refractive index n a'1.5795, aromatic liquid, specific gravity (20°)
1.075 (liq), melting point 28°, boiling point 259”
, flash point 115°, insoluble in water, soluble in alcohol, benzene, and glacial acetic acid.

It is synthesized by heating an alkali metal salt of phenol and monochlorobenzene, and is used as a soap fragrance, heat solvent, and solvent, and has a geranium-like fragrance.

2. Benzyl ether (also known as 1.1'-1" oxybis(methylene)]bis[benzene], dibenzyl ether, dibenzyl oxide) (C@H5CH2
) 20, molecular weight 198.25. Refractive index naJ, 56
01, aromatic liquid, specific gravity (20°) 1.0014, boiling point 2
89', flash point 135°, insoluble in water, alcohol,
benzene.

Soluble in glacial acetic acid. It is produced by reducing benzaldehyde with cobalt tetracarbonyl, but when benzyl alcohol is produced by alkaline hydrolysis of benzyl chloride,
It can also be obtained as a by-product. It is somewhat unstable to moisture and may produce some benzaldehyde, and although the product also has a repellent effect, it is easy to prevent decomposition. This benzyl ether is used as soap fragrance, fragrance solvent, dye carrier,
Used as a nitrocellulose plasticizer.

When preparing a formulation for actually using this phenyl ether or benzyl ether as an insect repellent, it can be made into a dosage form suitable for the purpose. In other words, liquids (oils) dissolved in white kerosene, powders, and wettable powders.

It can be easily formulated into granules, emulsions, aerosols, fumigants, adhesives, etc. by conventional methods. However, since this component is liquid at room temperature, it solidifies, and in order to limit the rate of release of the component, it is mixed with higher fatty acids and their derived solid compounds,
Amino acid derivatives and sugar derivatives, such as benzylidene sorbitol, are compatible with natural or synthetic waxes or mixed with inorganic sulfate powder to gel and solidify, or microencapsulated with gelatin, gum arabic, synthetic resin, glass membrane, etc. Set the speed. Furthermore, these repellent functional materials can be impregnated and fixed into natural or synthetic m-fiber sheets, tapes, and the like.

The nophenyl ether or pencil ether of the present invention is prohibited.
The composition as an ingredient has repellent power against various pests as an olfactory repellent (Olfactory repellent).
ENT) has a strong effect as a taste repellent (Gust).
at.

ry repellent), but the former action has the advantage of being able to prevent the initial biting of the object. Utilization of such unique functions can provide a very wide range of effective repellent equipment, which can be used for humans, livestock, agricultural and forestry crops, crafts, communication equipment, OA equipment, etc.

Furthermore, the repellent of the present invention can be used in combination with the terpenoid monomer and its oligomer, which were previously developed by the present inventors and disclosed in Japanese Patent Application No. 63-124763, to provide a more effective wide range of harmful animal repellents. It is possible to obtain a repellent composition that is directed against. Regarding phenyl ether, the present inventors had previously discovered that it was effective as a rat repellent, and this was published in a patent application filed in 1983-176.
Although it was disclosed in the specification of No. 164, it has been found that, together with benzyl ether, it has a strong repellent action against general pests, especially cockroaches and ants.

Also, CA4521405 (1942), Concentration 1? 1
077 (1941).

1827 (1942), phenyl ether and benzyl ether were found in the form of their combustion gases in the Culex quinquefasciatus.
5ay) has been announced to have lethal fall power, but nothing has been said about its repellency.

Also, J, Econ, E+N, 60379 (195
7), phenyl ether has been investigated as an effect enhancer for the Trimetolua attractant, which is a pheromone that attracts the fruit fly, but it seems to have little effect.

〔Example〕

Example l 80% phenyl ether and 20% microwax were heated to about 80° to make them compatible, and the thickness was 1IIlfll and the width was 5.
cm of nonwoven fabric tape (30% cotton, 20% polyester fiber, 1 m 1450% nylon) was applied with an impregnated roller and allowed to cool at room temperature to obtain a repellent tape containing 65% phenyl ether.

Example 2 A repellent tape containing 65% benzyl ether is obtained in the same manner as in Example 1, using benzyl ether instead of phenyl ether.

Example 3 40 parts of phenyl ether and 40 parts of polyacrylic aqueous emulsion polymerization liquid (solid content 50%, anionic pH 4 to 5020 parts) were mixed and dispersed, spread on an aluminum sheet, and dried with ventilation at 50° to form a mixture containing 40% phenyl ether. A repellent sheet containing 40% phenyl ether was obtained for about 1 carp.

Example 4 A sheet containing 40% benzyl ether was obtained in the same manner as in Example 3, using benzyl ether instead of phenyl ether.

Hereinafter, the effects of the pest repellent examples of the present invention will be explained in the following test examples.

Test example l Cockroach repellent test test insect: German cockroach (a-thread, F-78 generation)
Adult method: According to the Selter repellent test method. i.e. test pot (
A test selter was prepared by making a U-shaped selter made of cardboard and pasting the repellent tapes of Examples 1 and 2 on the sides with double-sided tape to the inside of the selter. As a control, an untreated nonwoven fabric was placed in the test pore), and 10 male and female adults were grown and reared in a conventional manner. The number of insects hiding in the selter was counted over time.

The test effects are shown in Table 1.

Table 1 Note that a next generation organism is generated after about 50 days during the test.

Test example 2 Ant repellent test test insect: black-spotted ant, from Okinawa (collected from a telephone line connection terminal box) Method: Divide the inside of a Nigara pot (φ15 cm, height 18 cm) into two chambers with cardboard, and place the specimen in one chamber ( φ3.5cm
A cut-out sheet) was placed, and 20 test insects were released into the other room, allowing them to freely selectively enter the room. The number of bundles placed in each room was checked every 10 minutes, and this was checked over a period of 60 minutes. The test results are shown in Table 2.

In addition, the repellency rate was calculated by (l - number of test plots/number of control plots) x 100.

To make it possible to produce a pest repellent made of phenyl ether or pendyl ether, which has low toxicity to humans and livestock and can be economically produced as a material for industrial products without reducing its function. From this point of view, the effects of the present invention can be said to be enormous.

〔Effect of the invention〕

Claims (1)

[Claims] 1. A pest repellent composition containing phenyl ether or benzyl ether. 2. In the description of claim 1, phenyl ether or benzyl ether is compatible with higher fatty acids and their derivatives, amino acid derivatives, sugar derivatives, natural waxes, and synthetic resins, and solids, films, inclusions, encapsulates, and shapes thereof. A pest repellent composition impregnated with a natural or synthetic fiber composition or the like to form a molded product.