JPH0436205A - How to avoid sanitary pests - Google Patents

Abstract

PURPOSE:To repel insect pests by applying (3-phenoxyphenyl)methyl 2, 2- dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate to paper, nonwoven fabric, resin film, fabric, carpet, etc. CONSTITUTION:(3-Phenoxyphenyl)methyl 2,2-dimethyl-3-(2-methylpropenyl) cyclopropanecarboxylate (A) in an amount of 0.01-0.5g/m<2> (preferably 0.05-0.3g/m<2>) is applied to paper, nonwoven fabric, resin film, fabric, base fabric or pile parts of carpets to repel and control sanitary insect pests such as mite, cockroach and fly. An effect enhancer such as piperonyl butoxide in an amount of 2-10 times based on a repellent can be added to the compound (A) to reduce the amount of the compound (A) used to 0.001-0.05g/m<2>. The aforementioned compound (A) is added to binders in the carpets or kneaded in resins for use.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is an excellent method for controlling mites, cockroaches, mosquitoes, flies, and many other sanitary pests that live inside houses and cause various harm to humans and forests. This relates to a method for repelling sanitary pests that has a repellent effect, and is a method for preventing damage caused by pest invasion.

(Prior art) Repellents were developed to prevent sanitary pests that suck blood, such as mosquitoes, fleas, lice, ticks, and black flies. The purpose is to prevent It was mainly used for outdoor leisure activities such as fishing and sports, but it was also used by applying it directly to the human skin. The drugs mainly used were N,N-diethyl-3-methylbenzamide, dimethyl phthalate, and diptyle phthalate, but their efficacy was short-lived, lasting only 2 to 3 hours. be. In addition, there was a problem in regular use because of discomfort such as sticky feeling on the skin. Conventional sanitary pest control methods have mainly used insecticides. As an insecticide,
0. O-dimethyl-0-4-nitro-m-)lyl phosphorothioate (fenitrothion L S-(1,2-
dicarboethoxyethyl)-0,0-dimethyldithiophosphate (malathion), 0.0-dimethyl-O-
(3-Methyl-4-methylthiophenyl)thiophosphate (fenthion), 0.0-dimethyl-〇-(2,
2-dichlorovinyl) phosphate (diclobos), 0
．． Organophosphorus insecticides such as 0-dimethyl-1-hydroxy-2,2,2-) dichloroethyl phosphate (trichlorfon) were mainly used, but they are being replaced by pyrethroid insecticides, which are highly safe, for general household use. Drugs include pyrethrin, 2,2-dimethyl-3-(2-methyl-
1-propenyl)cyclopropanecarboxylic acid-2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl ester (allethrin), 2.2
-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid (1,3,4,5,6,7-hexahydro-1,3-dioxo-2H-isoindole 2
-yl) methyl ester (tetramethrin), 5-benzyl-3-furylmethyl-(+)-trans chrysanstate (resmethrin), 2゜2-dimethyl-3-
(2-Methyl-1-propenyl)cyclopropanecarbon MC3-phenoxyphenyl)rutyl ester (phenothrin), 3-(2,2-dichloroethynyl)-2,
2-dimethylcyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester (permethrin) and the like are on the market.

Tables 1 and 2 show commonly commercially available insecticides and their insecticidal efficacy.

Table 1 Required spray amount of organophosphorus insecticides Required amount per bottle Mosquitoes, flies Cockroaches Table 2 Required amount per spray amount of pyrethroid insecticides Mosquitoes, flies Cockroaches Phenothrin 0.3 to 0.5 g 0.3 ~0
．． 5g Permethrin 0.25g
0.25 g (Problem to be solved by the invention) The most common pests found inside houses are mites and cockroaches. Mites such as house dust mites, claw mites, pediculosis mites, dust mites, dust mites, and dust mites can cause itching and dermatitis due to their bites.

Other known pests include mosquitoes, flies, fleas, lice, snail beetles, wasps, and bed bugs, but these are now on the decline compared to before due to improved hygiene management and an improved environment. There are also some pests. However, on the other hand, dust mites and cockroaches have become more susceptible to air-tightness due to the spread of heating equipment and improvements in house structure, and each room has become airtight (as building materials have changed from mainly wood to concrete, indoor humidity has decreased. This has created favorable conditions for the growth of dust mites.The habitat of dust mites is under tatami mats and carpets, and there is plenty of food for them, so their reproductive ability is greater than expected, leading to a large number of dust mites. One of the reasons for this is due to the deep cleaning of the house as in the past, and the fact that tatami mats and other items no longer dry in the sun.

The damage caused by mites is not just limited to bites, but everything from live insects to feces and dead bodies of mites, such as Dermatophagoides mites, are allergens and are thought to be the main cause of respiratory diseases such as asthma. In particular, childhood asthma is difficult to treat, and it is said to be difficult to treat only by administering drugs by a doctor. This is also caused by dust mites, and the condition has been cured by improving the environment through thorough cleaning and recuperating, so it can no longer be dismissed.

Cockroaches are sensitive to cold and overwinter in small spaces during the winter. There was a time when cockroaches were not confirmed to inhabit the Tohoku and Hokkaido regions, but due to the spread of heating equipment and changes in the living environment, they now inhabit the same areas west of the Kanto region and do not have a hibernation period. Breeding can be seen throughout the year. Many cockroaches are extremely unsanitary, transmitting pathogens and depositing feces on drinks and tableware.

Under the above circumstances, it is necessary to properly control sanitary pests, but in conventional spraying of insecticides, since toxic insecticides are applied indoors, there is no need to worry about the effects on the human body due to the toxicity of the chemicals. There is a danger that these pests may adhere to food and drink, and in addition to the unsanitary feeling of dead bodies of these pests remaining indoors, there is also the risk of dust mite droppings,
Dead bodies have even been linked to childhood asthma. For this reason, an appropriate method for controlling sanitary pests using repellents is desired.

(Means for Solving the Problems) The present invention relates to 2,2-dimethyl-
3-(2-methylpropenyl)cyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester (hereinafter referred to as
This research was completed by discovering that phenothrin (phenothrin) can be used only as a repellent without killing insects, depending on the amount used.

The amount used as a repellent is 0.01 to 0.5 g/n, preferably 0.05 to 0.3 g/n.

Further, by adding an efficacy enhancer to this, it can be made to act more effectively. Potency enhancers include piperonyl butoxide, octachlordipropyl ether, N-octyl-bicycloheptene dicarboximide, isobornylthiocyanoacetate, N,N-
Diethyl-3-methylbenzamide and the like can exhibit excellent efficacy. The amount of this efficacy enhancer to be used is 2 to 20 times the amount of the repellent, preferably 2 to 10 times the amount of the repellent. The amount of repellent used is 0.001 to 0.05g.
/rl (, preferably 0.005 to 0.02 g/rl), and the effect can be exerted with a considerably smaller amount.

Phenothrin is a pyrethroid insecticide developed as an insecticide, and its toxicity is lower than that of other pyrethroids. The insecticidal effect is very good, but there are reports that it has a repellent effect on mosquitoes.
Kurihara et al., Sanitary Animals Vol. 38 (1), 25.
(1987), and as a repellent against 'i 071J, Takaaki Ito, Household Insects Vol. 11(1),
6. (1989).

The method of using the phenothrin of the present invention is to dissolve it in an oil solution such as kerosene, xylene, perchlorine, etc., ethanol, isopropanol, isoparaffin, 11.1-1-lychloroethane, etc., add a surfactant, and pour it into water. When emulsified, it becomes an emulsion.

The repellent of the present invention may contain ultraviolet absorbers or antioxidants to improve weather resistance, or may be added during surface treatment of fibers.
A resin can also be used in combination to improve washing resistance. An example of their use is to impregnate paper, cloth, or film with a diluted repellent solution and use it as an insect repellent sheet under carpets, beds, and tatami mats. It can also be added to carpet backing agents to impart pest repellency. In addition, it can also be used by kneading into resin. For example, by kneading it into polyethylene, polypropylene, nylon, vinylon, polyvinyl chloride, polyurethane, polyester, polyvinylidene, etc., it is possible to make textile products, films, etc. that have excellent durability and insect repellency. The kneading method allows easy kneading by using a masterbatch. In addition, it can be added to aerosol agents or various paints to make paints with sanitary pest repellent properties. In addition, it can be applied to floorboards and cupboards to prevent cockroaches from entering, and bedding can also be treated to prevent mites from infesting it. In this way, floorboards, furniture, etc. with excellent pest repellency,
Comfortable living can be achieved through the development of daily necessities such as bedding and textiles.

(Example) The present invention will be explained below with reference to Examples.

Example 1 A repellent test using Phenothrin alone against Dermatophagoides nigricans and German cockroach.

After dissolving phenothrin in acetone, kraft paper was impregnated with each concentration shown in Table 3 to prepare samples.

The test results are shown in Table 3.

Table 3 Repellent test method The tick repellent test was conducted using the radiation type repellent test method. The cockroach repellent test was conducted according to the Japan Environmental Health Center test method.

■ Radiation type repellent test method As shown in Figure 1, a Petri dish 1 with a diameter of 3C11 is placed on an adhesive sheet 4, and six identical Petri dishes 2 are placed around it.
Place the petri dish so that its edges are in contact with the center of the dish. In the surrounding 6 Petri dishes, cut out 3cm diameter samples of treated area 3 and untreated area 3゛ samples were placed alternately, and on each sample was placed 0゜01g of powder sample containing no mites. The mites from which the bait has been removed are placed in a 10 x 15 x 5 CI plastic food storage container along with the adhesive sheet, and saturated saline is added to keep the humidity at 75% and kept in a constant temperature chamber at 25°C for one day and night. The next day, the mites scattered on each sample were collected by washing with water and then counted to determine the repellency rate.

■ Japan Environmental Health Center Test Method As shown in Figure 2, height 9cm, width 26C11, length 2
In a container 5 made of 0C11 resin, a test sample 6 cut to 7×7CI and an untreated sample 6° are attached as a pair with double-sided tape. On test sample 6 and untreated sample 6,
A wooden frame 7 with a height of 5 cm and the same size as the same sample with one side open.
A shelter with a plywood board 8 placed on top was placed, absorbent cotton 9 moistened with water and solid feed 10 were placed in the center of the container 5, and the inner wall of the container was lightly coated with Vaseline to prevent cockroaches from escaping. Afterwards, 30 adult cockroaches were placed in the shelter and left overnight, and the next morning the repellent effect was determined by the number of cockroaches living under the shelter.

Example 2 1 part of phenothrin was mixed with 5 parts of octachlor dipropyl ether, an potency enhancer, and coated in the following coating amount.

This coated plywood was left in a thermostat at 50″C.
It was stored under harsher conditions at room temperature and its repellent effect was tested. The test was conducted in 1 section in triplicate.

(a) Amount of chemical applied to plywood: 1.5 g/bo (b
) 2.0g/Bo(c)
2.5g/bo Test method Based on the Japan Environmental Health Center test method.

Insects tested german cockroach Test results (50°C acceleration test) As shown in Table 4.

Table 4 Repellent rate (%) Test method Dani: Radiation repellent test method Cockroach: Japan Environmental Health Center Test Method Test results As shown in Table 5.

Example 3 A drug containing 1 part of phenothrin and 5 parts of piperinyl butoxide as an potency enhancer was added to an adhesive backing agent for flocking pile to the base fabric of a carpet at a rate of (a) 2 g/
nf, (b) 5 g/rrf, and (C) 10 g/m to form a carpet. This carpet was used to conduct a repellent test against the German cockroach and the Argentinian dust mite. The experiment was conducted after cutting the pile area.

Sample table 5 Repellency rate (%) Dermatophagoides nigricans German cockroach Example 4 A chemical mixture of 1 part of phenothrin and 7 parts of isobornylthiocyanoacetate was kneaded into molten polyethylene at various concentrations during the production of polyethylene film, and a thickness of 3
A 0 micron film was made. A cockroach and mite repellent test was conducted using this film.

Test method Amount of drug added Amount of drug added Amount of drug added Test insect a O9 b　　Oo c　　　　O.

D: cockroach: 05% 10% 50% woolly mite german cockroach Test results As shown in Table 6.

Sample table 6 Repellency rate (%) German cockroach After dissolving 0 parts of German cockroach in xylene, a preparation containing 10 parts of Noniball 100 (Sanyo Chemical Industries ■ product) as an emulsifier was added to water and a diluted solution was added to futon fabric (cotton) Table 7 as phenothrin
The samples were processed to achieve the concentrations shown in the table below.

Efficacy enhancers used in the experiment - Piperonyl butoxide - Octachlor dipropyl ether - N-octyl-bicycloheptene dicarboximide Test results are shown in Table 7.

Example 5 A repellent test against Dermatophagoides nigricans and German cockroach using a drug containing phenothrin and a potency enhancer in a ratio of 1:5.

7 tables of 20 parts of a drug containing phenothrin and potency enhancer

[Brief explanation of the drawing]

FIG. 1 is a layout diagram of a petri dish used in the tick repellent test according to the present invention, and FIGS. 2 a and 2 b are layout diagrams of a shelter used in the cockroach repellent test according to the present invention. 1... Petri dish 2... Petri dish 3... Treated area 3'... Untreated area 4... Adhesive sheet 5.
...Container 6...Test sample 6゛...Untreated sample 7...
Wooden frame 8... Plywood board 9... Absorbent cotton soaked in water 10... Solid feed Figure 2 (a)

Claims (4)

[Claims] (1) Conversion of 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester into the base fabric or pile part of paper, nonwoven fabric, resin film, cloth, and carpet as an active ingredient 1m
A method for repelling sanitary pests, characterized by adhering 0.01 to 0.5 g per ^2. 2. The method for repelling sanitary pests according to claim 1, wherein (2) 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester is added to a carpet binder. (3) 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester to polyethylene, polypropylene, nylon, vinylon, polyvinyl chloride, polyurethane, polyester, polyvinylidene, etc. The method for repelling sanitary pests according to claim 1, wherein the method is used by kneading it into a resin. (4) 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid (3-phenoxyphenyl) methyl ester with piperonyl butoxide, N,N-
Diethyl-3-methylbenzamide, octachlordipropyl ether, isobornylthiocyanoacetate, N
-Octylbicycloheptene dicarboximide 1
Add the seed or two or more in 2 to 10 times the amount, and apply this to the base fabric or pile part of paper, nonwoven fabric, resin film, cloth, carpet at a rate of 0.001 to 0.00% per 1 m^2 in terms of active ingredient.
A method for repelling sanitary pests, characterized by adhering 05g.