JP3116497B2 - Nematicide acaricide - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nematicide or acaricide containing an amine derivative of the following formula [I] as an active ingredient.

[0002]

2. Description of the Related Art Conventionally, a large number of nematicides and acaricides have been used to control nematodes in agricultural and horticultural crops and ticks parasitic on livestock, but their efficacy is insufficient. However, its use is limited due to the problem of drug resistance, or it causes phytotoxicity or contamination of plants, or it is highly toxic to humans, fishes, etc. Not a few. Therefore, there is a need for the development of a drug that can be used safely with few such disadvantages.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a nematicide or acaricide which is effective and can be used safely.

[0004]

According to the present invention, there is provided a compound represented by the general formula [I]:

Embedded image Wherein R ₁ represents an optionally substituted pyridyl group, an optionally substituted pyrazinyl group or an optionally substituted thiazolyl group, and R ₂ represents a hydrogen atom, an optionally substituted alkyl group or a cycloalkyl group. Or an alkoxy group, R ₃ represents a hydrogen atom, an alkyl group which may be substituted, and R ₄ represents a cyano group or a nitro group. A nematicide or acaricide comprising at least one compound represented by the formula (1) or a salt thereof as an active ingredient.

[0005] Examples of the amine derivative of the general formula [I] according to the present invention include the compounds shown in Table 1. The production methods of the following amine derivatives or salts thereof and their use as insecticides are described in WO 91/04965.

[0006]

[Table 1]

[0007] By applying the nematicide according to the present invention, for example, rice varieties of rice, citrus nematodes such as fruit trees and vegetables, sweet potato nematodes, northern root nematodes, soybean cyst nematodes,
By applying the acaricide according to the present invention, such as strawberry nematode, scab nematode, foxtail nematode, pine wood nematode, etc., for example, ox tick, ticks mite, etc. of domestic animals can be controlled.

The nematicide and acaricide of the present invention contain a compound represented by the general formula [I] as an active ingredient, and can be used as a pure active ingredient compound. Possible forms of pesticides, namely wettable powders,
Water solvents, powders, emulsions, granules, flowable oils, fumigants,
It is used in the form of a smoke agent and the like. As an additive and a carrier, when a solid agent is intended, soybean flour, vegetable powder such as flour, diatomaceous earth, apatite, gypsum, talc, bentonite, mineral fine powder such as clay, sodium benzoate, urea ,
Organic and inorganic compounds such as sodium sulfate are used. When a liquid dosage form is intended, vegetable oils, mineral oils, kerosene, petroleum fractions such as xylene and solvent naphtha, cyclohexane, cyclohexanone, dimethylformamide, dimethyl sulfoxide, trichloroethylene, methyl isobutyl ketone, water, etc. are used as solvents. use. In these formulations, a surfactant can be added if necessary to obtain a uniform and stable form. The wettable powder, emulsion, aqueous solution and flowable thus obtained are used as a suspension or emulsion by diluting to a predetermined concentration with water, and the powder and granules are sprayed as they are. .

It goes without saying that the compound of the present invention alone is sufficiently effective, but it can also be used as a mixture with various insecticides, acaricides and fungicides. Representative examples of miticides and insecticides that can be used by mixing with the compound of the present invention are shown below. Acaricides (bactericides): chlorbenzylate, phenisobromolate, dicophor, chlordimeform, amitraz, BPPS, benzomate, hexthiazox, fenbutatin oxide, polynactin, quinomethionate, C
PCBS, tetradiphone, avermectin, lime polysulfide, clofenthedine, flubenzmin, flufenoxuron, cyhexatin, pyridaben, fenpyroximate, fenpyrad, thiophanate methyl, benomyl, thiuram, IBP, EDDP, fusaride, probenazole, isoprothiolane, TPN, captan, polyoxin, Blasticidin S, Kasugamycin, Validamycin, Tricyclazole, Pyroquilon, Phenazine Oxide, Mepronil, Flutranil, Pencyclon, Iprodione, Himexazole, Metalaxyl, Triflumizole, Diclomedine, Teclophthalam, Propineb, Diram, Dithianon, Josetyl, Triforin,
Vinclozolin, procymidone, oxadixyl, triadimefon, bitertanol, fenarimol, guazatine, propamocarb hydrochloride, fluazinam,

Organophosphorus and carbamate insecticides (miticides): fenthion, fenitrothion, diazinon, chlorpyrifos, ESP, bamidione, fentoate, dimethoate, formotion, marathon, trichlorfon, thiometon, phosmet, dichlorvos,
Acephate, EPBP, methyl parathion, oxydimetone methyl, ethion, salithion, cyanophos, isoxathion, pyridafenthion, hosalon, methidathion, sulprophos, pyraclophos, monocrotophos, phenamiphos, aldicarb, propoxur, mesomil, BPMC, MTMC, carbaryl, carthacyl, cartacushi, cartaryl Bensultap, carbosulfan, benfracarb, pirimicarb, ethiophenecarb, phenoxycarb, thiodicarb,

Pyrethroid insecticides (miticides): permethrin, cypermethrin, decamestrin, fenvalerate, fenpropatrin, pyrethrin, allesulin, tetramethrin, resmethrin, dimethrin, propasulin, bifenthrin, prothrin, fluvalinate, cyfluthrin, cyhalothrin, Flucitrinate,
Etofenprox, cycloprothrin, tralomethrin, silaneophane, benzoylphenylurea and other insecticides: diflubenzuron, chlorfluazuron, triflumuron, teflubenzuron, hexaflumuron, triflumuron, flufenoxuron, buprofezin, pyriproxyfen, diaphene Thiuron, machine oil, nicotine sulfate, B
T.

[0012]

EXAMPLES Next, examples of the preparation will be described.
Surfactants and the like are not limited to these examples. Example 1 Emulsion 10 parts of the compound of the present invention 5 parts of alkylphenylpolyoxyethylene 5 parts of dimethylformamide 35 parts of xylene 35 parts The above components were mixed and dissolved, diluted with water for use, and dispersed as an emulsion.

Example 2 Water-dispersible powder 20 parts of the compound of the present invention 5 parts of a higher alcohol sulfate ester 70 parts of diatomaceous earth 5 parts of silica The above components are mixed, pulverized into fine powder, diluted with water before use, and dispersed as a suspension.

Example 3 Dusts 5 parts of the compound of the present invention 94.7 parts of talc 0.3 parts of silica The above components are mixed and pulverized.

Example 4 Granules 5 parts of the compound of the present invention 73 parts of clay 20 parts of bentonite 1 part of sodium salt of dioctyl sulfosuccinate 1 part 1 part of sodium phosphate

[0016]

EFFECT OF THE INVENTION Test Example 1 Efficacy against rice turtle nematode 100 rice husks contaminated rice husks are divided into rice husks and rice husks, and both of them are wrapped in the same cotton cloth.
According to the formulation of the wettable powder described in Example 2 of the above-mentioned drug, it was immersed in a drug solution diluted with water so that the compound concentration became 125 ppm, and placed in a thermostatic chamber at a temperature of 25 ° C. and a humidity of 65%.
One day later, the number of surviving insects in 3 ml of the lower part of the funnel was counted under a microscope, and the control rate was determined by comparing with the untreated group. Second result
It is shown in the table.

[0017]

[Table 2]

Test Example 1 Efficacy against Haemaphysalis longicornis [0018] A glass petri dish was inoculated with 20 first-instar larvae of Haemaphysalis longicornis and was surrounded by a tangle so as not to escape. According to the formulation of the emulsion described in Example 1 of the drug, a drug solution diluted with water was sprayed so that the compound concentration became 125 ppm, and the solution was placed in a thermostatic chamber at a temperature of 25 ° C. and a humidity of 65%. The knockdown rate was determined after 4 hours, and the larvalicidal rate was determined after 1 day. The results are shown in Table 3.

[0019]

[Table 3]

────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Makiro Yano 345 Yanagimachi, Takada, Odawara-shi, Kanagawa Japan Soda Corporation Odawara Research Laboratories (56) References JP-A-4-1544741 (JP, A) JP-A-2 −288859 (JP, A) JP-A-2-209868 (JP, A) JP-A-2-191253 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 47/40 A01N 51/00

Claims (1)

(57) [Claims] 1. A compound of the general formula [I] Wherein R ₁ represents an optionally substituted pyridyl group, an optionally substituted pyrazinyl group or an optionally substituted thiazolyl group, and R ₂ represents a hydrogen atom, an optionally substituted alkyl group or a cycloalkyl group. Or an alkoxy group, R ₃ represents a hydrogen atom, an alkyl group which may be substituted, and R ₄ represents a cyano group or a nitro group. A nematicide or acaricide comprising at least one compound represented by the formula (1) or a salt thereof as an active ingredient.