JPS60228402A - Mixed insecticidal composition - Google Patents

Abstract

PURPOSE:To provide a mixed insecticidal composition containing a specific compound having insecticidal activity and a carbamate compound as active components, exhibiting excellent synergistic insecticidal effect, having low phytotoxicity, and capable of completely controlling various vermin at the same time. CONSTITUTION:The objective composition contains (A) 1-(3-phenoxyphenyl)-4-(4- ethoxyphenyl)-4-methylpentane which is a known compound having insecticidal activity and (B) a substituted phenyl N-methyl carbamate or alpha-naphthyl N- methylcarbamate such as o-sec-butylphenyl N-methylcarbamate, etc. as active components. The ratio of the components is 1:9-9:1, and the composition is applied in the form of an emulsifiable concentrate, wettable powder, powder, granule, etc. together with a carrier, an adjuvant, etc. The composition controls a wide variety of vermin such as vermin of paddy rice plant, green vegetables, orchard, etc., and is applied by the nursery box treatment, foliar treatment of the crop, scattering to the body of larva and imago, application to the insect in water of paddy field, or treatment of soil, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides
-ethoxyphenyl)-4-methylpentane (hereinafter referred to as compound A) and substituted phenyl N-methyl carbamate or α-naphthyl N-methyl carbamate as active ingredients. Although there is a description that various compounds including Compound A and commercially available insecticides can be mixed, there is no description regarding the insecticidal activity of the mixed composition.

As a result of studying the insecticidal activity of mixed compositions of Compound A and many commercially available insecticides, the present inventor found that a mixed composition with the carbamate-based compound of the present invention has a remarkable synergistic effect.

In other words, the insecticidal composition of the present invention has excellent effects on a wide range of pests such as paddy rice, rapeseed, and fruit tree pests, in seedling box treatment, crop foliage spraying, young adult insect body spraying, paddy field waterworm application, and soil treatment. Demonstrates a synergistic insecticidal effect,
Moreover, it has little chemical damage and can be safely used as a simultaneous control agent for various pests.

We found that it can be used as

When the composition of the present invention is used as an insecticide, a solid carrier,
It can be mixed with liquid carriers, gaseous carriers, surfactants, other formulation auxiliaries, baits, etc., or impregnated into base materials such as incense sticks and mats to produce emulsions, wettable powders, powders, granules, oils, etc. It is formulated into aerosols, heating fumigants such as mosquito coils and electric mosquito mats, fogging agents such as fogging, non-heating fumigants, poison baits, etc.

These preparations contain the composition of the present invention as an active ingredient in an amount of 0.01% to 95% by weight. Further, the mixing ratio of compound A and carbamate compound is 1:9 to 9:1.
is within the range of The solid carrier includes fine powders or granules such as kaolin clay pulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, corn cob flour, roasted walnut powder, urea, ammonium sulfate, and synthetic hydrous silicon oxide. Yes, the liquid carrier is
Aliphatic hydrocarbons such as kerosene and kerosene; aromatic hydrocarbons such as benzene, toluene, xylene, and methylnaphthalene;
Giklo! Halogenated hydrocarbons such as loethane, trichloroethylene, and carbon tetrachloride, alcohols such as methanol, ethanol, isopropanol, ethylene glycol, cellosolve, ketones such as acetone, methyl ethyl ketone, cyclohexanone, and isophorone, diethyl ether, dioxane, and tetrahydrofuran. Examples include ethers such as ethyl acetate, esters such as ethyl acetate, nitriles such as acetonitrile and isobutyronitrile, acid amides such as dimethylformamide and dimethylacetamide, dimethyl sulfoxide, and vegetable oils such as soybean oil and cottonseed oil. Gaseous carriers include fluorocarbon gas,
Examples include LPG (liquefied petroleum gas) and dimethyl ether.

Surfactants used for emulsification, dispersion, wetting layers, etc. include alkyl sulfate salts, alkyl (aryl) sulfonates, dialkyl sulfosuccinates, polyoxyethylene alkylaryl ether phosphate salts, and naphthalene sulfones. Examples include anionic surfactants such as acid formalin condensates, and nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene block copolymers, sorbitan fatty acid esters, and polyoxyethylene sorbitan n fatty acid esters. Formulation aids such as fixing agents and dispersants include lignin sulfonate, alginate, polyvinyl alcohol, gum arabic, molasses, casein, gelatin, CMC (carboxymethyl cellulose), pine oil, and agar, and stabilizers. Includes PAP (isopropyl acid phosphate), TCP
Alkyl phosphates such as (tricresyl phosphate), vegetable oils,
Examples include epoxy Kamiike, the above-mentioned surfactants, antioxidants such as BHT and BHA, fatty acid salts such as sodium oleate and calcium stearate, and fatty acid esters such as methyl oleate and methyl stearate.

Examples of formulations are shown below. Parts are parts by weight.

Formulation Example 1 10 parts of Compound A, 20 parts of BPMC (o-secondary-butylphenyl N-methylcarbamate), 14 parts of polyoxyethylene styrylphenyl ether, 6 parts of calcium dodecylbenzenesulfonate, and 50 parts of xylene were thoroughly mixed to form an emulsion. obtain.

Formulation Example 2 10 parts of Compound A, 30 parts of carbaryl (α-naphthyl N-methyl carbamate), 3 parts of calcium lignosulfonate, 2 parts of sodium lauryl sulfate, and 55 parts of synthetic hydrous silicon oxide are thoroughly ground and mixed to obtain a wettable powder. .

Formulation Example 8 0.15 parts of Compound A, 2 parts of Carbaryl, 87.5 parts of kaolin clay and 10 parts of talc were ground and mixed to obtain a powder.

Formulation Example 4 Compound A 1 part, PHC (o-isopropoxyphenyl N-methyl carbamate) 4 parts, synthetic hydrated silicon oxide 1 part
1 part, 2 parts of calcium ligninsulfonate, 80 parts of bentonite, and 62 parts of kaolin clay are thoroughly ground and mixed, water is added, and the mixture is thoroughly kneaded, followed by granulation and drying to obtain granules.

These preparations can be used as they are or diluted with water, and can also be used with other insecticides, acaricides, nematicides, fungicides,
It can also be used in combination with herbicides, plant growth regulators, fertilizers, soil conditioners, etc.

When the composition of the present invention is used as an insecticide, the application rate of the mixed composition is usually 51 to 51 per 10 ares in terms of the raw material.
500g, and when applying emulsions, wettable powders, etc. diluted with water, the application concentration is 10 m) pm to 11,000 pm.
Powders, granules, oils, aerosols, etc. should be applied without diluting them in the form of a preparation.

Rice stalks (about 10 taunch in length) are immersed for 1 minute in a water dilution of an emulsion of the following composition obtained according to Formulation Example 1 at a predetermined concentration. After air-drying, rice stems were placed in a test tube and 10 adult leafhoppers of a resistant strain were released, and one day later, they were examined for survival and the ↓LC5o value (50% lethal concentration) was determined (4 repetitions).
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Claims (1)

[Claims] +1) 1-(8-phenoxyphenyl)-4-(4-ethoxyphenyl)-4-methylpentane and substituted phenyl N-methyl carbamate or α-naphthyl N-methyl carbamate as active ingredients A mixed insecticidal composition comprising: (2) It is characterized by containing 1-(8-phenoxyphenyl)-4-(4-ethoxyphenyl)-4-methylpentane and 0-secondary-butylphenyl N-methylcarpamate as active ingredients. A mixed insecticidal composition according to claim 1. (8) Claim 1 containing 1-(8-phenoxyphenyl)-4-(4-ethoxyphenyl)-4-methylpentane and α-naphthyl N-methylcarbamate as active ingredients. The mixed insecticidal composition according to item 1.