JP2002363013A - Insecticidal and fungicidal composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a new agrochemical composition having high safety and capable of simultaneously controlling insect damage and disease damage. SOLUTION: This insecticidal and fungicidal composition is characterized by comprising (RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine, N-(2- chlorothiazol-5-ylmethyl)-N'-methyl-N"-nitroguanidine or 3-(2-chlorothiazol-5- ylmethyl)-5-methyl-1,3,5-oxadiazinan-4-ylidene-N-(nitro)amine and N-(1-cyano-1,2- dimethylpropyl)-2-(2, 4-dichlorophenoxy)propionamide. Thereby, the composition not only has excellent insecticidal and fungicidal effect but also improves persistence of effects of insecticidal ingredients.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a novel insecticidal and fungicidal composition for paddy fields showing excellent insecticidal and fungicidal activities.

[0002]

2. Description of the Related Art In paddy rice cultivation, various types of pests are attacked during sowing, planting, and harvesting, and stable harvesting cannot be performed without chemical control. In particular, during the heading period, which is just before the rice harvest, there is a danger that the crop yield and commercial value will be significantly impaired due to damage to the stink bugs mainly for pests and to rice ears mainly due to blast disease. . However, due to the safety of the crop immediately before harvesting, the available drugs at this time are limited. Therefore, in order to improve the efficiency of agricultural work, there is a strong demand for the emergence of a novel pesticide that can efficiently prevent these insect and disease diseases by a single treatment.

(RS) -1-methyl-2-nitro-3-
(Tetrahydro-3-furylmethyl) guanidine (generic name, dinotefuran, hereinafter referred to as "compound A"), N-
(2-chlorothiazol-5-ylmethyl) -N′-methyl-N ″ -nitroguanidine (generic name, clothianidin, hereinafter referred to as “compound B”), 3- (2-chlorothiazol-5-ylmethyl)- 5-methyl-1,3,5-
Oxadiadinane-4-ylidene-N- (nitro) amine (general name: thiamethoxam, hereinafter referred to as "compound C") is known to have excellent insecticidal activity against various pests (Japanese Patent Application Laid-Open No. H07-19783). -179448, European Patent Publication No. 5034404, JP-A-6-1839
No. 18).

[0004] N- (1-cyano-1,2-dimethylpropyl) -2- (2,4-dichlorophenoxy) propionamide (generic name: phenoxanyl; hereinafter, referred to as "compound D") is a rice blast. It is known that it has an excellent preventive effect against disease and an effect of inhibiting secondary infection (JP-A-63-132867).

However, each of these compounds alone has only an insecticidal effect or a bactericidal effect, and cannot simultaneously control disease and insect damage.

Examples of mixtures of compound D with some pesticides are already known. (Japanese Patent Application Laid-Open No. 2000-22613) However, the document describes improvement of the effect of the fungicide, but does not specifically disclose the effect of the insecticide.

[0007]

SUMMARY OF THE INVENTION In view of the above-mentioned agricultural circumstances, the present invention can be used immediately before harvesting, has high safety,
It is another object of the present invention to provide a novel pesticide capable of controlling insect damage and disease at the same time. An object of the present invention is to provide an insecticidal fungicidal composition containing any one of Compounds A to C and Compound D.

[0008]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, Compound A and Compound B
Alternatively, when compound C and compound D are combined, not only can the disease and pests of paddy rice be controlled at the same time, but also the sustainability of the insecticidal effect is greatly improved as compared with the case where compounds A to C are used alone. That is, the present invention has been completed.

That is, the present invention provides the following [1] to [4]. [1] (RS) -1-methyl-2-nitro-3- (tetrahydro-3-furylmethyl) guanidine and N- (1
-Cyano-1,2-dimethylpropyl) -2- (2,4
-An insecticidal / bactericidal composition containing (dichlorophenoxy) propionamide. [2] N- (2-chlorothiazol-5-ylmethyl)
-N'-methyl-N "-nitroguanidine and N- (1-
Cyano-1,2-dimethylpropyl) -2- (2,4-
An insecticidal fungicidal composition comprising (dichlorophenoxy) propionamide. [3] 3- (2-chlorothiazol-5-ylmethyl)
-5-methyl-1,3,5-oxadiadinane-4-ylidene-N- (nitro) amine and N- (1-cyano-
An insecticidal fungicidal composition comprising (1,2-dimethylpropyl) -2- (2,4-dichlorophenoxy) propionamide. [4] (RS) -1-methyl-2-nitro-3- (tetrahydro-3-furylmethyl) guanidine, N- (2-
Chlorothiazol-5-ylmethyl) -N'-methyl-
N ''-nitroguanidine or 3- (2-chlorothiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiadinane-4-ylidene-N- (nitro) amine and N- (1-cyano -1,2-dimethylpropyl)-
A method for killing insects, which comprises simultaneously applying 2- (2,4-dichlorophenoxy) propionamide.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The insecticidal fungicidal composition of the present invention is a composition obtained by combining a compound A, a compound B or a compound C with a compound D. The composition of the present invention exhibits excellent insecticidal fungicidal activity and exhibits an excellent control effect on harmful pests. In addition, the composition of the present invention remarkably improves the persistence of the effect of the insecticide.

Pests that can be controlled by the composition of the present invention include, for example, armyworm, rice armyworm, phytoobicoyaga, tamanayaga, cottonweed irrigator, giant tobacco, syrupychimogiyouto, tossinnia serrata, kaburayaga, yoteuga, tamanaginumaiwa, swordfish, swordfish, swordfish, swordfish Beetle, rice beetle, cotton beetle, potato moth, cabbage white butterfly, finch beetle, chanoco kakumon hamaki, kinmonhosoga, mandarin orange moth,
Grape Hosohamaki, Nasihime Shingui, Mameshingui, Momoshiniga, Grape Sukashiba, Chanohosoga,
Lepidopteran pests such as moth moths and locusts; tobacco whiteflies, whiteflies, citrus whiteflies, cotton aphids, snowy aphids, apple aphids, peach aphids, radish aphids, falcon aphids, bean aphids, citrus aphids, grapefruit Neem aphid, Mugimidori aphid, Potato beetle Aphid, Chamomidohimemeibai, Futatehimemeibai, Himebikouna,
Brown planthopper, sage brown planthopper, leafhopper leafhopper, tuna leafhopper leafhopper, white leafhopper, ruby beetle, olive stag beetle, scorpion leaf hopper, apple oyster stalk beetle, red-spotted stalk beetle, red skull-spotted stalks
Pseudococcidae, Pseudococcidae, Icelia spp., Apple lice, citrus lice,
Hemiptera pests such as southern stink bugs, beetles, and beetles; rice water weevil, rice dwarf beetle, cystine flea beetle, colorado beetle, tensite beetle, Diabrotica spp. Coleoptera, Scarabaeidae, A. Diptera insect pests such as black fly, onion fly, sea fruit fly, and orange fruit fly; neat thrips, oyster Thripidae insects, such as thrips, Thrips palmi, Thrips palmi, Thrips palmi, etc .; Orthoptera pests, such as black cockroaches, Yamato cockroaches, cockroaches, German cockroaches, Kobananeago, Tonosamabata; Tick pests such as Citrus spider mite, Apple spider mite, Dermatophagoid mite, Citrus mite, Dermatophagoides pteronyssinus, mites, mites, and other mites; others include dog fleas, head lice, yamato termites, scabies, and geese.

The diseases which can be controlled by the composition of the present invention include, for example, blast ( Pyricularia 0ryzae ) and sheath blight (Rhizoctonia solani).

When the insecticidal and fungicidal composition of the present invention is actually applied, it may be used in the form of a mixture of the above two compounds, or may be in the form of a single preparation, and both may be mixed at the time of use. Can be used. In formulating the insecticidal fungicidal composition of the present invention, no special conditions are required, and emulsions, wettable powders, water solvents, powders, granules, and the like are obtained by a method well-known in the art according to general pesticides.
An arbitrary dosage form such as a fine granule, a flowable, a microcapsule, an oil, a surfing agent, a casting agent and the like can be prepared, and these can be used according to respective purposes.

At this time, a solid carrier or a liquid carrier may be used, if necessary, to allow the active ingredient in the composition of the present invention to reach the site to be treated and to facilitate storage, transportation and handling. May contain various adjuvants.

Suitable solid carriers include, for example, montmorillonite, kaolinite, diatomaceous earth, terra alba, talc,
Examples include inorganic substances such as vermiculite, gypsum, calcium carbonate, silica gel, and ammonium sulfate, and organic substances such as soy flour, sawdust, flour, pectin, methyl cellulose, sodium alginate, vaseline, lanolin, liquid paraffin, lard, and vegetable oil.

Suitable liquid carriers include, for example, aromatic hydrocarbons such as toluene, cumene, and solvent naphtha;
Paraffinic hydrocarbons such as kerosene and mineral oil, halogenated hydrocarbons such as carbon tetrachloride, ketones such as acetone, methyl ethyl ketone and cyclohexanone, dioxane, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, propylene glycol Ethers such as monomethyl ether, ethyl acetate, butyl acetate, esters such as fatty acid glycerin acetonitrile, nitriles such as propionitrile methanol, ethanol, n-propanol,
Examples include alcohols such as isopropanol and ethylene glycol, dimethylformamide, dimethylsulfoxide, water and the like.

Further, in order to enhance the efficacy of the insecticidal fungicidal composition of the present invention, the following adjuvants may be used alone or in combination according to the purpose, taking into account the dosage form of the preparation, application scene, and the like. Can also be used.

As auxiliaries used for the purpose of emulsification, dispersion, spreading, wetting, binding, stabilization, etc., water-soluble bases such as ligninsulfonates, alkylbenzenesulfonates,
Alkyl sulfates, polyoxyethylene alkyl aryl ethers, nonionic surfactants such as polyhydric alcohol esters, lubricants such as calcium stearate, wax, stabilizers such as isopropylhydrodiene phosphate, other methyl cellulose, carboxymethyl cellulose, Casein, gum arabic and the like.
However, these components are not limited to those described above.

The insecticidal and bactericidal composition of the present invention comprises
It is stable to oxidation and the like, but if necessary, an antioxidant or an ultraviolet absorber, for example, a phenol derivative such as BHT (2,6-di-t-butyl-4-methylphenol) or BHA (butylhydroxyanisole); A more effective and stable composition can be obtained by adding a suitable amount of a bisphenol derivative, an arylamine such as phenyl-α-naphthylamine, phenyl-β-naphthylamine, a condensate of phenetidine and acetone, or a benzophenone compound as a stabilizer. I can do it.

Compounds A, B, and B in the insecticidal / bactericidal composition of the present invention
Alternatively, the content of C and compound D is 0.0000 each.
It is 001 to 95% by weight, preferably 0.0001 to 50% by weight. When applying the insecticidal fungicidal composition of the present invention,
It is desirable to use the active ingredient at a concentration of 0.001 to 5000 ppm, preferably 0.01 to 1000 ppm. In addition, the application rate per 10a is 1 to 1 in terms of the amount of the active ingredient.
1000 g.

The method for applying the insecticidal and fungicidal composition of the present invention to agricultural crops includes foliage application to crops and water surface application in paddy fields.

[0022]

EXAMPLES Next, the pesticidal fungicidal composition of the present invention will be described in detail with reference to formulation examples. The content of active ingredients, the type and content of auxiliary components such as carriers and auxiliary agents, and the target pests are It is needless to say that the present invention is not limited to this. Parts represent parts by weight.

Formulation Example 1 0.3 part of Compound A, 1 part of Compound D, and 0.3 part of white carbon are uniformly mixed, and 98.2 parts of clay and 0.2 parts of Drilles A (manufactured by Sankyo) are added. And uniformly pulverized and mixed to obtain 100 parts of powder.

Formulation Example 2 0.3 part of Compound B, 1 part of Compound D, and 0.3 part of white carbon are uniformly mixed, and 98.2 parts of clay and 0.2 part of Drilles A (manufactured by Sankyo) are added. And uniformly pulverized and mixed to obtain 100 parts of powder.

Formulation Example 3 0.3 part of Compound C, 1 part of Compound D, and 0.3 part of white carbon are uniformly mixed, and 98.2 parts of clay and 0.2 parts of Drilles A (manufactured by Sankyo) are added. And uniformly pulverized and mixed to obtain 100 parts of powder.

Formulation Example 4 1 part of compound A, 9 parts of compound D, white carbon 2
Parts, 2 parts of sodium ligninsulfonate, 86 parts of bentonite, and after uniformly pulverizing and mixing, water was added and kneaded,
The mixture was granulated and dried to obtain 100 parts of granules.

Formulation Example 5 1 part of compound B, 9 parts of compound D, white carbon 2
Parts, 2 parts of sodium ligninsulfonate, 86 parts of bentonite, and after uniformly pulverizing and mixing, water was added and kneaded,
The mixture was granulated and dried to obtain 100 parts of granules.

Formulation Example 6 1 part of compound C, 9 parts of compound D, white carbon 2
Parts, 2 parts of sodium ligninsulfonate, 86 parts of bentonite, and after uniformly pulverizing and mixing, water was added and kneaded,
The mixture was granulated and dried to obtain 100 parts of granules.

Next, specific examples of application methods will be described, but it goes without saying that the application method of the insecticidal / bactericidal composition of the present invention is not limited to these.

APPLICATION EXAMPLE 1 The composition of the present invention prepared as a powder containing 0.1 to 20% of the active ingredient is added in an amount of 0.1% per 10a so as to adhere to a rice plant.
Spray 5-5 kg directly.

Application Example 2 The composition of the present invention adjusted to granules having an active ingredient of 0.1 to 50% is submerged and sprayed on a water surface of a paddy field in an amount of 0.5 to 5 kg per 10 a.

Test Example 1 Pest Control Test on Granules (Water Surface Treatment Test) A predetermined amount of granules prepared according to Formulation Examples 4 to 6 was weighed, and 5 strains of 3 strains were placed in a Wagner pot (1/5000 ares). Rice planted about 20 days before heading (variety: Koshihikari)
Of water. Five days later, a spore suspension of rice blast fungus was spray-inoculated and cultivated under high humidity conditions.
On days 0 and 20, the number of lesions was examined. The control rate was calculated by the following equation (Equation 1). Also, 10 days and 20 days after the inoculation, the rice was covered with a nylon net, and 20 adult female brown planthoppers were released into the inside. The mortality was examined 48 hours later. The mortality was calculated by the following equation (Equation 2). The results are shown in Table 1 (Table 1). As shown in the table, as a result of the test, it was found that the composition of the present invention had improved sustainability of the insecticidal effect of the compounds A to C as compared with the case where the insecticide was used alone.

[0033]

(Equation 1)

[0034]

(Equation 2)

[0035]

[Table 1]

Test Example 2 Pest Control Test on Powder (Spray Test) A predetermined amount of the powder prepared according to Formulation Examples 1 to 3 was weighed, and 5 plants were planted three at a time in a Wagner pot (1/5000 ares). Paddy rice about 20 days ago (variety: Koshihikari)
Was sprayed using a bell jar duster. Five days later, a spore suspension of rice blast fungus was sprayed and inoculated, cultivated under high humidity conditions, and the number of lesions was examined on the 7th and 14th days after the chemical treatment. The control rate was calculated by the following equation (Equation 3). Also, 7 days and 14 days after the inoculation, the rice was covered with a wire mesh cylinder, and 20 adult female brown planthoppers were released into the inside, and the mortality was examined 48 hours later. The mortality was calculated by the following equation (Equation 4). The results are shown in Table 2 (Table 2). As shown in the table, as a result of the test, it was found that the composition of the present invention had improved sustainability of the insecticidal effect of the compounds A to C as compared with the case where the insecticide was used alone.

[0037]

(Equation 3)

[0038]

(Equation 4)

[0039]

[Table 2]

[0040]

The pesticidal fungicidal composition of the present invention has excellent pesticidal and bactericidal effects as evident from the test results, and can greatly improve the persistence of the pesticide effect. INDUSTRIAL APPLICABILITY The insecticidal / bactericidal composition of the present invention can simultaneously and efficiently control pests and diseases, reduce the burden of labor on farmers, reduce the amount of applied chemicals, and help reduce the burden on the environment.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Eiichi Yamada 1144 Togo, Mobara-shi, Chiba Mitsui Chemicals, Inc. (72) Inventor Nobuyuki Kawahara 1144, Togo, Togo, Mobara-shi, Chiba Mitsui Chemicals, Inc. Takashi 1144 Togo, Mobara-shi, Chiba Prefecture Mitsui Chemicals, Inc. (72) Inventor Shuji Ozawa 1144, Togo, Mobara-shi, Chiba Mitsui Chemicals, Inc.F-term (reference)

Claims (4)

[Claims] (1) (RS) -1-methyl-2-nitro-3
-(Tetrahydro-3-furylmethyl) guanidine,
N- (1-cyano-1,2-dimethylpropyl) -2-
An insecticidal fungicidal composition containing (2,4-dichlorophenoxy) propionamide. 2. N- (2-chlorothiazol-5-ylmethyl) -N′-methyl-N ″ -nitroguanidine and N
-(1-cyano-1,2-dimethylpropyl) -2-
An insecticidal fungicidal composition containing (2,4-dichlorophenoxy) propionamide. 3. 3- (2-chlorothiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiadinane-4-ylidene-N- (nitro) amine and N- (1-cyano-1) An insecticidal fungicidal composition comprising: (1,2-dimethylpropyl) -2- (2,4-dichlorophenoxy) propionamide. 4. (RS) -1-methyl-2-nitro-3
-(Tetrahydro-3-furylmethyl) guanidine, N
-(2-chlorothiazol-5-ylmethyl) -N'-
Methyl-N ″ -nitroguanidine or 3- (2-chlorothiazol-5-ylmethyl) -5-methyl-1,3,
5-oxadiazinan-4-ylidene-N- (nitro)
A method for killing insects, which comprises simultaneously applying an amine and N- (1-cyano-1,2-dimethylpropyl) -2- (2,4-dichlorophenoxy) propionamide.