JPH07126113A - Insecticidal composition - Google Patents

Abstract

PURPOSE:To provide an insecticidal composition comprising N<1>-[(6-chloro-3- pyeidyl)methyl]-N<2>-cyano-N<1>-methylacetoamidine and a certain kind of insecticide, and exhibiting a synergistic insecticidal effect. CONSTITUTION:An insecticidal composition comprises N<1>-[(6-chloro-3-pyridyl) methyl]-N<2>-cyano-N<1>-methylacetoamidine and at least one kind of compound selected from the group of thiodicarb, tralomethrin, teflubenzuron, and dichlorovos, and exhibits a stronger excellent synergistic action than the effects of the respective single active compounds. The application of the insecticidal composition is effective against e.g. Plutella xylostella, Spodoptera litura, Aphis gossypii, tea tortrix, CHANOHOSOGA, Scintothrips dorsalls, apple tortrix, etc., which are important insect pests against the crops of the Cruciferae. The former compound and the latter compound are preferably compounded in a ratio of 1:1 to 1:10, when mixed and formed into formulations.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to insecticidal compositions.

[0002]

2. Description of the Related Art Although many insecticides have been developed and put into practical use through many years of research and development of insecticides, their effects are insufficient and their use is restricted due to the emergence of drug resistance. It is difficult to say that it is a satisfactory control agent because it causes phytotoxicity and stains on the body, or is highly toxic to humans and fishes. Therefore, there is a strong demand for a drug that can be used safely with few such drawbacks.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention have, N ¹ -
While investigating the effective use of [(6-chloro-3-pyridyl) methyl] -N ² -cyano- N ¹ -methylacetamidine, a synergistic insecticidal effect can be obtained by combining with certain insecticides. I found that I could get it.

[0004]

According to the present invention, N ¹ -[(6
- chloro-3-pyridyl) methyl] - N ² - cyano - N
Insecticidal composition containing ¹ -methylacetamidine (I) and at least one selected from the compound group consisting of thiodicarb (A), tralomethrin (B), teflubenzuron (C) and dichlorvos (D) as active ingredients It is a thing.

Hereinafter, N ¹ -[(6-chloro-3-pyridyl) methyl] -N ² -cyano- N ¹ -methylacetamidine is abbreviated as compound (I). A compound selected from the compound group consisting of thiodicarb (A), tralomethrin (B), teflubenzuron (C) and dichlorvos (D) is abbreviated as compound (II).

The insecticidal effect of the insecticidal composition according to the present invention, in which the compound (II) is mixed with the compound (I), has a stronger synergistic effect than the effect of each active compound. That is,
By applying the insecticidal composition according to the present invention, for example,
It showed a higher and more synergistic insecticidal effect than the active compounds alone against the important pests of cruciferous crops, Plutella xylostella, Spodoptera litura, Aphid, Chanohamaki, Chanohosogha, Anoectus alba, and Apple beetle.

The pesticidal composition of the present invention can be used as it is as a pure product of an active ingredient compound, but it is usually in a form which can be taken by general agricultural chemicals, that is, a wettable powder, a water solution, a powder, an emulsion, a granule, a flowable agent, The fumigants, fumigants and the like may be mixed and formulated at the same time, or may be formulated separately and mixed and used. As the additives and carriers, soybean powder when the purpose is a solidifying agent, plant powder such as wheat flour, diatomaceous earth,
Mineral fine powders such as apatite, gypsum, talc and bentonite, and organic and inorganic compounds such as sodium benzoate, urea and mirabilite are used. For the purpose of liquid dosage form, petroleum fractions such as vegetable oil, mineral oil, kerosene, xylene and solvent naphtha, cyclohexane, cyclohexanone,
Dimethylformamide, dimethylsulfoxide, trichloroethylene, methyl isobutyl ketone, water and the like are used as the solvent. Surfactants can also be added to these formulations if necessary to achieve a uniform and stable form. The wettable powder, emulsion, water solvent, and flowable agent thus obtained are diluted with water to a predetermined concentration to give a suspension, solution, or emulsion, and powders and granules are sprayed as they are. used. The mixing ratio of compound (I) and compound (II) in the mixed preparation is from 4: 1 to 1:10.
It is 0, and preferably 1: 1 to 1:10.

[0008]

[Examples] Examples of formulations are shown below.
The surfactant and the like are not limited to these examples.

Example 1 Wettable powder Compound (I) 10 parts Compound (II) 10 parts Higher alcohol sulfate ester Na salt 5 parts Lignin sulfonic acid Na salt 5 parts Diatomaceous earth 65 parts Silica 5 parts Fine powder by mixing the above It is crushed into water and diluted with water before use and sprayed as a suspension.

Example 2 Wettable powder Compound (I) 20 parts Compound (II) 30 parts Higher alcohol sulfate ester 5 parts Clay 40 parts Silica 5 parts The above components are mixed and ground into fine powder, and diluted with water before use. Spray as a suspension.

Example 3 Emulsion Compound (I) 10 parts Compound (II) 20 parts Alkylphenyl polyoxyethylene 5 parts Dimethylformamide 45 parts Xylene 20 parts Mix and dissolve the above, and dilute with water to use as a suspension. Disperse.

[0012]

The effect of the present invention as a pesticide will be shown in the following test examples. In the table below, I is compound (I), A is thiodicarb, B is tralomethrin, C is teflubenzuron, and D is dichlorvos. Test Example 1 Test against diamondback moth The water-dispersible powder prepared according to the formulation shown in Example 1 was added with water to a predetermined concentration to prepare a drug solution, and this drug solution was sprayed on cabbage infested with diamondback moth. After 7 days, the number of insects was counted. The results are shown in Table 1.

[0013]

[Table 1]

Test Example 2 Test for green peach aphid A wettable powder prepared according to the formulation shown in Example 1 was adjusted to a predetermined concentration by adding water to prepare a chemical solution, and this chemical solution was used for the green peach aphid. Sprinkle on the parasitic cabbage of 7
The number of insects was counted after the day. The results are shown in Table 2.

[0015]

[Table 2]

Test Example 3 Test against Chanophosoga Emulsion prepared according to the formulation shown in Example 3 was adjusted to a predetermined concentration with water to prepare a chemical solution, which was sprayed on tea plants for 35 days. After that, the number of tea leaves was counted and the control rate was calculated. The results are shown in Table 3.

[0017]

[Table 3]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomohiro Take, 62-1 Sakabe, Haibara-cho, Haibara-gun, Shizuoka Prefecture Inside the Haibara Agricultural Research Institute, Nippon Soda Co., Ltd. (72) Hidemitsu Takahashi 62-1 Sakabe, Haibara-cho, Haibara-gun, Shizuoka Japan Soda Co., Ltd. Haibara Agricultural Research Institute

Claims (1)

[Claims] 1. N ¹ -[(6-chloro-3-pyridyl)
An insecticidal composition comprising, as an active ingredient, methyl] -N ² -cyano- N ¹ -methylacetamidine and at least one selected from the group of compounds consisting of thiodicarb, tralomethrin, teflubenzuron and dichlorvos.