JPH02142704A - Insecticide composition - Google Patents

Abstract

PURPOSE:To obtain an insecticide composition lessening an amount of insecticidal component and enhancing insecticidal effects by blending an insecticidal component with a compound selected from an ester of a specific polyhydric alcohol and caprylic acid, specific saturated fatty acid and n-hexyl alcohol. CONSTITUTION:An insecticidal component of pyrethroid base, organic phoshorous base or carbamate base is blended with (preferably 20-40 pts.wt. based on 1 pt.wt. insecticidal component of) one or more compounds selected from an ester of 2-3C polyhydric alcohol (e.g., glycerin) and caprylic acid, 6-10C saturated fatty acid (e.g., caproic acid) and n-hexyl alcohol to give an insecticide composition. The amount of the insecticidal component blended can be reduced, an insecticide having low toxicity is inexpensively obtained and is effective against cockroaches resistant to conventional insecticides because of enhanced effects of the insecticide composition.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an insecticide composition, and more particularly to an insecticide composition in which the amount of insecticidal ingredients added is reduced and the insecticidal efficacy is enhanced.

BACKGROUND OF THE INVENTION Conventional insecticides include pyrethroid, organophosphorus, and carbamate insecticides, each of which is used to take advantage of its characteristics.

Problems to be Solved by the Invention However, pyrethroid compounds have relatively low toxicity but are expensive, while organic phosphorus compounds and carbamate compounds are cheap but have high 11j properties. As described above, each has advantages and disadvantages, and it has been desired to reduce each disadvantage.

In addition, in recent years, sanitary pests (such as cockroaches) that are resistant to conventional insecticides have appeared, and it has been desired to enhance the efficacy of insecticides.

Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the inventors of the present invention have developed a mononisdel of a polyhydric alcohol having 2 to 3 carbon atoms and caprylic acid, and a mononisdel having 6 to 10 carbon atoms. one or two selected from saturated fatty acids and n-hexyl alcohol
The present invention was completed based on the discovery that when more than one type of compound is added to an insecticidal ingredient, the amount of the insecticidal ingredient is reduced and the efficacy of the insecticide is significantly enhanced.

That is, the present invention includes, as an insecticidal component, a polyhydric alcohol having 2 to 3 carbon atoms and caprylic acid, a saturated fatty acid having 6 to 10 carbon atoms, and n-hexylal-1.
This is an insecticide composition characterized by containing one or more compounds (hereinafter referred to as efficacy-enhancing ingredients) selected from the following.

In the present invention, T-1 polyvalent alkylene 1 having 2 to 3 carbon atoms
-ol refers to chrycerin, propylene glycol and ethylene glycol.

In addition, saturated fatty acids with 6 to 10 carbon atoms are
``/acid, caprylic acid, and capric acid, among which a) capric acid is particularly preferred.

Furthermore, as the insecticidal component, any of pyrethroid compounds, organic phosphorus compounds, and carbamate compounds may be used, but pyrethroid compounds are preferred.

Said dress 1. As the i- and I-ide compounds, vermethonone, resmethrin, allethrin, phthalthrin, and sifuetthrin can be used.

Examples of the organic phosphorus compound include fenitrothion, guacinone, diku-IJ rubos, and the like.

As the carhame-1 type compound, carbaryl, profoxur, etc. can be used.

In the present invention, mono of a polyhydric alcohol having 2 to 3 carbon atoms and caprylic acid: 1. Suul is used, but Diesdel or Tosu: I4 sprue combination has no efficacy enhancing effect. Furthermore, although saturated fatty acids having 6 to 10 carbon atoms or n-hexylaluminum alcohol are used in the present invention, compounds having a larger number of carbon atoms do not have the effect of enhancing drug efficacy.

The blending amount of the medicinal efficacy enhancing component is 5 to 50 parts by weight per 1 part of the insecticidal component, preferably IJ: 20 to 40.
weight (11 parts).The compounding amount of the compound is 1
11 (If it is less than 5 parts by weight, no efficacy enhancement effect will be observed. If it is more than 50 parts by weight, 5 parts by weight)
No greater medicinal effect enhancement than when 0 parts by weight is added, and the composition as a whole lacks balance.

In the present invention, in addition to the above-mentioned essential components, a solvent (for example, kerosene, etc.) and a synergist (for example, pipet 11-rubutoxide, etc.) may be added.

The insecticide composition of the present invention can be made into an airsol agent by a conventional method by adding a liquefiable gas (such as liquefied petroleum gas), or can be used as an oil agent in the form of JF:.

Effects of the Invention The present invention has made it possible to provide an insecticide with a reduced amount of insecticidal ingredients and enhanced insecticidal efficacy.

EXAMPLES The present invention will be explained in more detail with reference to Examples and Test Examples.

Example 1 d-T2O-phthalthrin 08g and ethylene glyph 2
- Dissolve 16.0 g of Lumonocabrille-1 in kerosene.
150 units of oil solution were manufactured.

Example 2 08 g of d-T2O-phthalthrin and 160 g of ethylene glycol monocabrilate were dissolved in kerosene, and 150 m
It was set as g. This solution and 150 d of liquefied petroleum gas were
mg air sole container.

Example 3 08 g of d-T2O-phthalthrin and 1-16.0 g of BuI+pyrene glycol monocabrile were dissolved in moon oil to prepare 150i. This solution and 150 ml of liquefied petroleum gas were filled into a 300 d air sole container.

Example 4 0.8 g of d-T2O-phthalthrin and 16.0 g of O.guri (7-phosphorus monocabrilate) were dissolved in kerosene, and 150 m
It was set as g. 30M of this solution and 150 parts of liquefied petroleum gas
! filled into an aerosol container.

Example 5 d-T2O-phthal-less 9208g and 02 Caprin ρ
16, Og was dissolved in kerosene to make 150nf. This solution and 150d of liquefied petroleum gas for 300++! ! filled into an aerosol container.

Example 6 0.8 g of d-T2O-phthalthrin and 16.0 g of n-hexyl alcohol were dissolved in kerosene to make 150 mg. Add this solution and 150 d of liquefied petroleum gas to 300-〇21
- Filled into an azole container.

Example 7 Permethrin [trade name Exmin, Sumima Kagaku Kogyo Co., Ltd.]
]08g and ethylene glycol monocabrilay 1-
16.0g was dissolved in kerosene to make 15M. This solution and 150 me of liquefied petroleum gas were filled into a 300 d air sole container.

Example 8 08g of permethrin and 160g of propylene glycol monocabrilate were dissolved in kerosene and 150n! ! Closed.

300m4 of this solution and 15M of liquefied petroleum gas! filled into an aerosol container.

Example 9 Permethrin 0.8g and glycerin monocabrilay 1
-16.0g was dissolved in kerosene to make 150-. This solution and 150 mg of liquefied petroleum gas were filled into a 300-sized aerosol container.

Example 10 Permethrin 08g and Caprin@16. Og was dissolved in kerosene to make 150d. This solution and liquefied petroleum gas15
0d was filled into a 300-mm aerosol container.

Example 11 Permethrin 0.8g and n-hexyl alcohol 16.
Dissolve 0 g in kerosene, 150++! ! And so. This solution and 15 M of liquefied petroleum gas were filled into a 300 rne aerosol container.

Test Example 1 (1) Using permethrin as the insecticidal component of the sample pyrethroid,
The following specimens 1 to 5 were prepared.

Permethrin 80mg and efficacy enhancing ingredients (ethylene glycol monocabrilate, propylene glycol monocabrilate, glycerin monocabrilate, capric acid or n-hexyl alcohol) 1600mg kerosene 5
011! ! The solution also uses d-T2 instead of permethrin.
Samples 6 to 1o were prepared in the same manner using O-fukufluthrin.

As a control, permethrin 16 was used without adding any drug-enhancing ingredients.
The sample prepared by blending 0nng was used as control sample 1, d-T
Sample 2 was prepared by blending 160 mg of 2O-phthalthrin.

(2) Test insects 10 adult male German cockroaches resistant to pyrethroid
Two groups were used for each sample.

(3) Test method Sample 063 is tied using a micro applicator.
- It was applied to the thoracic dorsal plate of adult male spring cockroaches without anesthesia, and the median knockdown time (KT50) was determined from the number of knockdowns over time. In addition, the animals were collected after 2 hours and given sufficient water and food, and the mortality rate was examined after 96 hours.

(4) Results As a result of the test, it was found that the effect of the drug against pyrethroid-resistant German cockroaches was enhanced by adding the drug effect enhancing ingredient.

This is shown in Table 1.

Table 1 Test Example 2 Lethal effect test on pyrethroid-resistant cockroaches (1) Samples Each of the aerosol preparations prepared in Examples 2 to 6 was used as sample 1.
I gave it a rating of ~5.

As a control, a sample to which no drug efficacy enhancing ingredient was added was prepared and designated as Control Sample 1.

(2) Test insects: 10 adult male cockroaches with pyrethroid resistance
Three groups were used for each sample.

(3) Test method The 10 German cockroaches mentioned above were tested with a diameter of 15 cm and a height of 18 cm.
A glass cylinder with a diameter of 20 cm and a height of 90 cm was placed on top of the container, and the specimen was sprayed for 2 seconds from above.After exposing the cockroaches for 30 seconds, the container containing cockroaches was removed, and after 10 minutes, the cockroaches were removed. The animals were collected and given sufficient water and food, and the mortality rate was examined after 96 hours.

(4) Results As a result of the test, it was found that the effect against pyrethroid-resistant TiA spring cockroach was enhanced by the combination of the drug efficacy enhancing ingredient.

This is shown in Table 2.

Table 2

Claims (1)

[Claims] (1) The insecticidal component includes a monoester of a polyhydric alcohol with 2 to 3 carbon atoms and caprylic acid, and a monoester with 6 to 10 carbon atoms.
An insecticide composition comprising one or more compounds selected from saturated fatty acids and n-hexyl alcohol.