KR101182617B1 - Agrochemical composition, bactericide for agricultural and horticultural use, and method for controlling plant disease - Google Patents

Abstract

The present invention provides (1) polyoxyalkylene aryl ether, (2) polycarboxylate, and (3) pesticide active ingredient. Moreover, this invention provides the agricultural / horticultural germicide composition characterized by containing thiophanate methyl and tricyclazole as an agrochemical active ingredient, and the plant pest control method using the same.

Description

Agrochemical compositions, pesticides for horticulture and methods of controlling plant diseases {AGROCHEMICAL COMPOSITION, BACTERICIDE FOR AGRICULTURAL AND HORTICULTURAL USE, AND METHOD FOR CONTROLLING PLANT DISEASE}

The present invention relates to agrochemical compositions containing two specific surfactants and agrochemical active ingredients. Moreover, this invention relates to the agricultural / horticultural germicide composition containing thiophanatemethyl and tricyclazole as an active ingredient, and the control method of a plant disease.

This application claims priority based on Japanese Patent Application No. 2007-204222 for which it applied to Japan on August 6, 2007, and Japanese Patent Application 2007-204224 for which it applied to Japan on August 6, 2007, The content Is used here.

Conventionally, when growing agricultural horticultural crops, various pesticide compositions have been used for the purpose of controlling weeds and harmful organisms. An agrochemical composition usually contains a surface active ingredient for the purpose of stably exhibiting or enhancing the potency of the pesticide active ingredient and the pesticide active ingredient.

However, due to its insufficient control effect, its use is limited by the emergence of drug-resistant pathogens, it causes weakness or contamination of plants, or its toxicity or environmental impact on carnivorous fish, etc. There are not a few things that are not necessarily satisfactory control agents.

Therefore, it is desired to develop a pesticide composition which can be used safely and exhibits a high control effect against weeds and harmful organisms.

By the way, the most important disease in the water supply is the plague. Rice with blasts grows slowly, has a low rice yield, and increases tea and samami. The control period of a blast is 2 minutes in the middle of the growing season which targets a leaf blast, and the late growth period which targets an ear blast. However, in the past, the leaf blasting bottle could be controlled by applying a control agent during seedling, but it was difficult to control the ear blasting bottle.

In connection with the present invention, Patent Document 1 proposes a preventive sterilizing agent having a heat-protective effect, and a heat-resistant disease control composition comprising a heavy chain fatty acid triglyceride.

Moreover, also in patent document 2, the control agent (agrohorticultural germicide composition) of plant diseases, such as a heat-fever disease, is proposed. However, the control agent of Patent Document 2 is insufficient in its control effect, its use is limited by the emergence of drug-resistant pathogens, it causes weakness or pollution to plants, or it is toxic to the fish or the environment. It is hard to say that it is necessarily satisfactory control agent by the point etc. which there is an influence.

Therefore, development of a control agent which can be used safely and exhibits a high preventive effect and / or a therapeutic effect (hereinafter sometimes referred to simply as a "control effect") against plant diseases such as a blast disease is desired.

Japanese Unexamined Patent Publication No. 2003-104820 Japanese Unexamined Patent Publication No. 2002-308701

This invention is made | formed in view of such a situation, and makes it a subject to provide the pesticide composition which can be used safely, and has the outstanding control effect with respect to a weed or a plant disease. In particular, it is an object of the present invention to provide a pesticide composition which can be used safely and has excellent control effects against various plant diseases, in particular, blast bottles (leaf blast bottles and ear blast bottles).

Moreover, an object of this invention is to provide the agricultural and horticultural fungicide composition which can be used safely and has excellent control effect against various plant diseases, especially heat-resistant diseases, and the plant pest control method using this agricultural and horticultural fungicide composition. .

MEANS TO SOLVE THE PROBLEM The present inventors earnestly researched the pesticide composition containing an active pesticide active ingredient and surfactant, in order to solve the said subject, As a surfactant, (1) polyoxyalkylene aryl ether and (2) polycar The pesticide composition containing a carboxylate can be used safely, and it was found out that it has the outstanding control effect against the control of weeds and plant diseases, especially a blast bottle (leaf blast bottle and an ear blast bottle), and came to complete this invention.

In addition, the present inventors have found that agrohorticultural fungicide compositions containing thiophanate methyl and tricyclazole as active pesticides can be used safely and have excellent control effects against various plant diseases, especially heat diseases. The present invention has been completed.

Thus, according to the first aspect of the present invention, there is provided an agrochemical composition comprising (1) polyoxyalkylene aryl ether, (2) polycarboxylate, and (3) agrochemical active ingredient.

In the agrochemical composition of this invention, it is preferable that said (1) polyoxyalkylene aryl ether is polyoxyalkylene aryl phenyl ether.

It is preferable that the pesticide composition of this invention is a hydrating agent.

Moreover, in the pesticide composition of this invention, it is preferable that said (3) pesticide active ingredient is a bacteriostatic active ingredient for agrohorticulture, and it is more preferable that they are thiophanate methyl and tricyclazole.

According to the second aspect of the present invention, there is provided an agricultural and horticultural fungicide composition comprising thiophanate methyl and tricyclazole as active pesticides.

In the agricultural / horticultural germicide composition of the present invention, it is preferable to contain thiophanate methyl and tricyclazole in the range of 1: 5000 to 500: 1 in a weight ratio (thiophanatemethyl: tricyclazole), and thiophanate It is preferable that total content of methyl and tricyclazole is 0.01 to 90 weight% with respect to the whole agricultural / horticultural germicide composition.

Moreover, it is preferable that the agricultural / horticultural germicide composition of this invention is a hydrating agent.

According to the third aspect of the present invention, there is provided a method for controlling plant diseases, wherein the agricultural / horticultural germicide composition of the present invention is applied to agricultural horticultural crops.

The pesticide composition and the agricultural / horticultural germicide composition of the present invention can be used safely and have an excellent control effect against weeds and plant diseases, and especially excellent against various plant diseases, especially heat-breaking diseases (leaf blasting and ear blasting). Have

Moreover, since the control method of this invention uses the agricultural / horticultural germicide composition of this invention, it has a long application period and can obtain a high control effect on plant diseases, such as a heat disease.

Hereinafter, the present invention will be described in detail.

1) Pesticide Composition

The pesticide composition of this invention contains (1) polyoxyalkylene aryl ether, (2) polycarboxylate, and (3) pesticide active ingredient. It is characterized by the above-mentioned.

(1) polyoxyalkylene aryl ether

As polyoxyalkylene of the polyoxyalkylene aryl ether used for the agrochemical composition of this invention, polyoxyethylene, polyoxypropylene, the combination of polyoxyethylene, polyoxypropylene, etc. are mentioned.

As aryl of polyoxyalkylene aryl ether, Aryl groups, such as a phenyl group, 1-naphthyl group, and 2-naphthyl group; Alkyl aryl groups, such as a C8-12 alkylphenyl group and di C8-C12 alkylphenyl group; Arylaryl groups such as benzylphenyl group, styrylphenyl group, distyrylphenyl group, and tristyrylphenyl group; And the like.

As a specific example of polyoxyalkylene aryl ether, polyoxyethylene (C8-C12) alkylphenyl ether, polyoxyethylene benzyl phenyl ether, polyoxyethylene phenyl phenyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene disti Arylphenyl ether, polyoxyethylene tristyrylphenyl ether, polyoxyethylene styrylphenylphenyl ether, polyoxyethylene di (C8 to C12) alkylphenyl ether, polyoxyethylene (C8 to C12) alkylphenyl ether formalin condensate, etc. Can be mentioned.

In the pesticide composition of this invention, these polyoxyalkylene aryl ether can be used individually by 1 type or in combination of 2 or more type.

Among these, polyoxyalkylene aryl phenyl ether is preferable and polyoxyethylene tristyryl phenyl ether is especially preferable.

Specific examples of the polyoxyalkylene aryl ether include polyoxyethylene tristyrylphenyl ether (Soprophor BSU, manufactured by Rhodia Corp.), polyoxyethylene polyoxypropylene tristyrylphenyl ether (Soprophor 796 / P, manufactured by Rhodia Corp. ), Polyoxyethylene polyoxypropylene alkyl phenyl ether (Antarox 461 / P, Rhodia Chemical Co., Ltd.), polyoxyethylene octyl phenyl ether (Nonal 109, Toho Chemical Co., Ltd.) etc. can be illustrated.

(2) polycarboxylates

The polycarboxylate used for the agrochemical composition of this invention is a salt of the polymer of the molecular weight 1,000-50,000 which uses a carboxylic acid as a structural unit. For example, (a) salt of ethylenically unsaturated monocarboxylic acid polymer, (b) salt of copolymer of ethylenically unsaturated monocarboxylic acid and ethylenically unsaturated dicarboxylic acid or its anhydride, (c) ethylenically unsaturated Salt of a copolymer of monocarboxylic acid or ethylenically unsaturated dicarboxylic acid or its anhydride and C2 to C6 alkenes, (d) ethylenically unsaturated monocarboxylic acid or ethylenically unsaturated dicarboxylic acid or its anhydride and aromatic vinyl And salts of copolymers of compounds.

Acrylic acid, methacrylic acid, crotonic acid, etc. are mentioned as ethylenically unsaturated monocarboxylic acid.

Maleic acid, fumaric acid, itaconic acid, etc. are mentioned as ethylenic unsaturated dicarboxylic acid.

Ethylene, propene, butylene, isobutylene, diisobutylene, etc. are mentioned as C2-C6 alkene.

-메틸스티렌, 비닐톨루엔, p-메틸스티렌 등을 들 수 있다.Moreover, as an aromatic vinyl compound, styrene,

-Methyl styrene, vinyltoluene, p-methyl styrene, etc. are mentioned.

As a polycarboxylate, Salt of alkali metal, such as lithium, sodium, potassium of polycarboxylic acid; Salts of alkaline earth metals such as calcium and magnesium; Amine salts such as monomethylamine, monoethylamine and dimethylamine; And ammonium salts; And the like.

Specific examples of the polycarboxylate include salts of polyacrylic acid, salts of copolymers of acrylic acid and maleic acid, salts of copolymers of isobutylene and maleic anhydride, salts of copolymers of acrylic acid and itaconic acid, methacrylic acid The salt of the copolymer of itaconic acid, the salt of the copolymer of maleic acid, and styrene, the salt of the copolymer of maleic acid, and diisobutylene, etc. are mentioned.

In the pesticide composition of this invention, these polycarboxylates can be used individually by 1 type or in combination of 2 or more type.

Among these, the salt of the copolymer of maleic acid and diisobutylene is preferable.

Specific examples of the polycarboxylates include salts of isobutylene and maleic anhydride copolymer (isoban 600SF35, manufactured by Kuraresa), salts of isobutylene and maleic anhydride copolymer (Toxanone GR31A, manufactured by Sanyo Chemical Co., Ltd.). ), Polyacrylate (Boise 530, manufactured by Cao Corporation), ammonium polyacrylate (Boise 532A, manufactured by Cao Corporation), salts of copolymers of acrylic acid and maleic acid (Boise 520, Boyz 521, manufactured by Cao Corporation), maleic anhydride And salts of copolymers of diisobutylene (Newkalgen-WG-5, manufactured by Takemoto Oils & Fats).

The content weight ratio of said (1) polyoxyalkylene aryl ether and (2) polycarboxylate in the agrochemical composition of this invention is usually 8: 2-3: 7 Preferably it is 7: 3-5: 5

The total amount of the above-mentioned (1) polyoxyalkylene aryl ether and (2) polycarboxylate is 0.1 to 10 weight% normally with respect to the whole pesticide composition, Preferably it is 1 to 5 weight%.

(3) Pesticide Active Ingredients

The pesticide composition of this invention contains a pesticide active ingredient.

There is no restriction | limiting in particular as an agricultural pesticide active ingredient, Agrohorticultural bactericidal active ingredient, Agrohorticultural insecticidal active ingredient, Agrohorticultural mite active ingredient, Herbicide active ingredient, Plant growth regulation active ingredient, etc. are mentioned.

Although the following are mentioned specifically, It is not specifically limited to these.

(Sterilization active ingredient)

,

,

-트리플루오로-N-(1-이미다졸-1-일-2-프로폭시에틸리덴-o-톨루이딘 (일반명 : 트리플루미졸), 3-클로로-N-(3-클로로-5-트리플루오로메틸-2-피리딜)-

,

,

-트리플루오로-2,6-디니트로-P-톨루이딘 (일반명 : 플루아지남), 메틸-(E)-2-메톡시이미노[

-(o-톨릴옥시)-o-톨릴]아세테이트 (일반명 : 크레속심메틸).1,2-bis (3-methoxycarbonyl-2-thiourade) benzene (common name: thiophanatemethyl), 5-methyl-1,2,4-triazolo [3,4-b] benzo Thiazole (tricyclazole), methyl 1-(butylcarbonyl) -2-benzimidazole (common name: benomyl), (E) -4-chloro-

,

,

-Trifluoro-N- (1-imidazol-1-yl-2-propoxyethylidene-o-toluidine (common name: triflumizol), 3-chloro-N- (3-chloro-5- Trifluoromethyl-2-pyridyl)-

,

,

-Trifluoro-2,6-dinitro-P-toluidine (common name: fluazinam), methyl- (E) -2-methoxyimino [

-(o-tolyloxy) -o-tolyl] acetate (common name: Cresoximemethyl).

(Pesticide Active Ingredient)

(E) -N ¹ -[(6-chloro-3-pyridyl) methyl] -N ² -cyano-N ¹ -methylacetamidine (common name: acetamiprid), (2) 1- (6 -Chloro-3-pyridylmethyl) -N-nitro (imidazolidine-2-ylidene) amine (common name; imidacloprid), N-tert-butyl-N- (3,5-dimethylbenzoyl)- 3-methoxy-2-methylbenzohydrazide (common name: methoxyphenozide), 1-naphthyl-N-methylcarbamate (common name: NAC), 1- (2,6-dichlor- 4-trifluoromethyl) -3-cyano-4-trifluoromethylsulphenyl-5-aminopyrazole (common name: fipronil).

(Mite Active Ingredients)

-시아노-3-페녹시벤질-2,2,3,3-테트라메틸시클로프로판카르복실레이트 (일반명 : 펜프로파트린), (RS)-

-시아노-3-페녹시벤질-N-(2-클로로-

,

,

-트리플루오로-p-톨릴)-D-발리네이트 (일반명 : 플루발리네이트).trans-5- (4-chlorophenyl) -N-cyclohexyl-4-methyl-2-oxothiazolidine-3-carboxamide (common name: hexthiazox), N- (4-tert-butyl Benzyl) -4-chloro-3-ethyl-1-methylpyrazole-5-carboxamide (common name: tebufenpyrad), (RS)-

Cyano-3-phenoxybenzyl-2,2,3,3-tetramethylcyclopropanecarboxylate (common name: phenpropatrine), (RS)-

-Cyano-3-phenoxybenzyl-N- (2-chloro-

,

,

-Trifluoro-p-tolyl) -D-valinate (common name: fluvalinate).

(Herbicidal active ingredient)

3- (3,4-dichlorophenyl) -1,1-dimethylurea (common name: DCMU), (2) S- (4-chlorobenzyl) -N, N-diethylthiocarbamate (common name: Benthiocarb).

(Plant growth regulating active ingredient)

N- (dimethylamino) -succinic acid (common name: daminozide).

These pesticide active ingredients can be used individually by 1 type or in combination of 2 or more type.

In this invention, it is preferable to use the agricultural and horticultural bactericidal active component as an agrochemical active component among these, and thiophanate methyl [1, 2-bis (3-methoxycarbonyl-2-thiourade) benzene] , And tricyclazole (5-methyl-1,2,4-triazolo [3,4-b] benzothiazole) are particularly preferred.

Although the pesticide active ingredient content in the pesticide composition of this invention is not specifically limited, Usually, it is 0.01 to 90 weight%, Preferably it is 50 to 85 weight%.

As a pesticide active ingredient, when using thiophanate methyl and tricyclazole together, the content weight ratio is not specifically limited, Usually, 1: 5000-500: 1, Preferably 1: 1000-200: 1, More preferable Preferably it is 1: 100-100: 1, Especially preferably, it is the range of 1: 10-10: 1. When thiophanate methyl and tricyclazole are used in such a weight ratio in the pesticide composition of this invention, the outstanding effect beyond the additive effect obtained when it mixes simply can be acquired.

The pesticide composition of this invention can be made into various formulations according to the use purpose. That is, suitable carriers and auxiliaries can be blended with the pesticide active ingredient, polyoxyalkylene arylether and polycarboxylate, and used in the form of a preparation according to a conventional method. In the form of such preparations, wetting agents (WPs), emulsions, flowables, water-soluble agents, granules-hydrating agents, solutions, emulsions, suspensions, powders, foams, pastes, granules, aerosols, microcapsules, seeds And a coating agent, a smoke agent, and the like. Among these, a hydrating agent is preferable in order that the excellent control effect can be acquired as a heat-resistant bottle control agent.

A hydrating agent can be prepared by mixing other additives, such as an agricultural chemical active ingredient, polyoxyalkylene arylether, polycarboxylate, and an extender as needed, and making it fine powder.

Examples of the extender include ore, such as talc, clay, bentonite, kaolinite clay, montmorillonite, pyroferrite, acidic clay, diatomaceous earth, vermiculite, apatite, gypsum, mica, silica sand, calcium carbonate, and pumice powder. powder ; Synthetic products such as white carbon (amorphous silica) and titanium dioxide; Vegetable powders such as crystalline cellulose, starch, wood flour, cork and coffee shell; Polymer compounds such as polyvinyl chloride and petroleum resin; Chemical fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride and potassium chloride; And the like.

These extenders can be used individually by 1 type or in combination of 2 or more type.

The usage-amount of a extender is 5-50 weight% normally with respect to the whole pesticide composition, Preferably it is 10-30 weight%.

As another additive, Various auxiliary agents, such as polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), hydroxypropyl cellulose (HPC), gum arabic, polyvinylacetate, gelatin, casein, sodium alginate; Stabilizers such as antioxidants, ultraviolet absorbers and the like; Surfactant other than polyoxyalkylene aryl ether and polycarboxylate; And the like.

Although the average particle diameter of a hydrating agent does not have a restriction | limiting in particular, It is preferable that it is 10-100 micrometers from a viewpoint of obtaining the outstanding handleability and water dilution physical property.

The pesticide composition of the present invention comprises one or two or more kinds of other active compounds, such as insecticides, poisonous mushrooms, fungicides, insecticides and mites, nematicides, fungus, growth regulators, herbicides or synergists and You may use together.

The pesticide composition which concerns on this invention can be used for control of a wide range of plant diseases. The following can be mentioned as the representative example.

Rice Blight (Pyricularia oryzae)

Paperback disease (Rhizoctonia solani)

Gibberella fujikuroi

Rice Seed Disease (Cochliobolus miyabeanus)

Barley creeper (Ustilago nuda)

Wheat red fungal disease (Gibberella zeae)

Red Rust (Puccinia recondita)

Pseudocercosporella herpotrichoides

Wheat blight (Leptosphaeria nodorum)

Powdery mildew (Erysiphe graminis f.sp.tritici)

Red tongue disease (Micronectriella nivalis)

Kidney Bean Gray Mold Disease (Botrytis cinerea)

Sclerotinia sclerotiorum

Red Bean Gray Mold Disease (Botrytis cinerea)

Sclerotinia sclerotiorum

Soybean fungal disease (Sclerotinia sclerotiorum)

Peanut Severe Disease (Mycosphaerella arachidis)

Beetroot crab (Cercospora beticola)

Cucumber powdery mildew (Sphaerotheca fuliginea)

Sclerotinia sclerotiorum

Gray fungal disease (Botrytis cinerea)

Tomato leaf fungal disease (Cladosporium fulvum)

Gray fungal disease (Botrytis cinerea)

Eggplant Black Blight (Corynespora melongenae)

Gray fungal disease (Botrytis cinerea)

Onion gray rot (Botrytis allii)

Strawberry powdery mildew (Sohaerotheca humuli)

Gray fungal disease (Botrytis cinerea)

Apple powdery mildew (Podosphaera leucotricha)

Black Star Disease (Venturia inaequalis)

Flower rot (Monilinia mali)

Persimmon anthrax (Gloeosporium kaki)

Peach Tree Ashen Disease (Monilinia fructicola)

Grape powdery mildew (Uncinula necator)

Downy mildew (Plasmopara viticola)

Gray fungal disease (Botrytis cinerea)

Pear red star disease (Gymnosporangium asiaticum)

Black spots (Alternaria kikuchiana)

Tea tree double pattern disease (Pestalotia theae)

Anthrax (Colletotrichum theae-sinensis)

Citrus Spear (Elsinoe fawcettii)

Blue fungal disease (Pennisillium italicum)

Gray fungal disease (Botrytis cinerea)

Western grass tongue allele (Sclerotinia borealis)

Among these, the pesticide composition of this invention has the effect especially excellent for a rice blast (leaf blast, ear blast).

As a method of applying the agrochemical composition of this invention to a crop for horticulture, the method of diluting a pesticide composition as it is, or appropriately with water, and applying to a plant, a seed, a water surface, or the soil is mentioned.

For example, when the pesticide composition is used as a hydrate, it is diluted to a predetermined concentration with water and used as a solution, suspension or emulsion. The application concentration of a hydrating agent is 1-1000 ppm normally, Preferably it is 10-250 ppm.

The dosage of the pesticide composition varies depending on the weather conditions, the form of the formulation, the time of application, the method of application, the application site, the pests to be controlled, the target crop, and the like. Generally, it is 1 to 1,000 g, preferably 100, as an effective ingredient amount per hectare. ～ 600 g.

The application time varies depending on the crops to be targeted, for example, in the case of rice blasting, from 4 weeks before flowering until flowering.

According to the pesticide composition of the present invention, excellent control effects can be obtained against various crop diseases, particularly rice blasting disease. In addition, the application period of crop disease control is long. Therefore, the degree of freedom of the application time of the pesticide composition is high.

2) Agrohorticultural fungicide composition

The agricultural / horticultural germicide composition of the present invention is thiophanate methyl [1,2-bis (3-methoxycarbonyl-2-thiourade) benzene], and tricyclazole (5-methyl- as an agrochemical active ingredient. 1,2,4-triazolo [3,4-b] benzothiazole).

Although the mixing ratio of thiophanate methyl and tricyclazole in the agricultural / horticultural germicide composition of the present invention is not particularly limited, it is usually 1: 5000 to 500: 1, preferably 1: 1000 to 200: 1 in weight ratio. Preferably it is 1: 100-100: 1, Especially preferably, it is the range of 1: 10-10: 1. By using thiophanate methyl and tricyclazole in such a weight ratio, it is possible to obtain agrohorticultural germicide composition having excellent effects more than the additive effect obtained by simply mixing.

In addition, in the agricultural / horticultural germicide composition of this invention, the total content of thiophanate methyl and tricyclazole is not specifically limited with respect to the whole composition (when used as a formulation, as mentioned later, with respect to the whole formulation). However, it is usually 0.01 to 90% by weight, preferably 50 to 85% by weight.

The agricultural / horticultural germicide composition of the present invention contains thiophanate methyl and tricyclazole as essential components as the pesticide active ingredient, and may contain other pesticide active ingredients. The other pesticide active ingredient is not particularly limited, and conventionally known herbicidal active ingredient, agricultural horticultural bactericidal active ingredient, agrohorticultural insecticidal active ingredient, agrohorticultural mite active ingredient, plant growth regulating active ingredient and the like can be given. These other pesticide active ingredients can be used individually by 1 type or in combination of 2 or more types.

The agricultural / horticultural germicide composition of this invention can be made into various formulations according to the purpose of use, etc. That is, suitable carriers and auxiliaries can be combined with thiophanatemethyl and tricyclazole, and other pesticide active ingredients as desired, and can be used in the form of preparations according to conventional methods.

As such a preparation form, the preparation form used for the above-mentioned pesticide composition is mentioned, for example, A hydrating agent is preferable at the point which can obtain the excellent control effect as a heat-resistant control agent among them.

Wetting agents can be formulated, for example, with agrochemical active ingredients, surfactants, extenders and other additives as desired.

As the surfactant used, for example, polyoxyalkylene aryl ether, polyoxyalkylene alkyl ether, sulfate ester salts thereof, alkylbenzene sulfonates, sulfate ester salts of higher alcohols, alkyl naphthalene sulfonates, polycarboxes, and the like Acid salts, lignin sulfonates, formaldehyde condensates of alkylnaphthalene sulfonates, isobutylene-maleic anhydride copolymers; and the like.

Specifically as a polyoxyalkylene aryl ether, the thing similar to what was mentioned above can be illustrated.

As alkyl of a polyoxyalkylene alkyl ether, a linear or branched C8-C18 alkyl group is mentioned.

As a specific example of polyoxyalkylene alkyl ether, polyoxyethylene (C12-C18) alkyl ether, polyoxypropylene (C12-C18) alkyl ether, polyoxyethylene polyoxypropylene block polymer, (C12-C18) alkyl Polyoxyethylene polyoxypropylene block polymer ether etc. are mentioned, More specifically, polyoxyethylene cetyl ether (EMALEX 100 type, the Nippon emulsifier), polyoxyethylene octyl dodecyl ether (EMALEX OD system, Nippon) Emulsifier company) etc. are mentioned.

Specifically as a polycarboxylate, the thing similar to what was mentioned above can be illustrated.

These surfactant can be used individually by 1 type or in combination of 2 or more type.

Among these, it is preferable to use at least 1 sort (s) chosen from the group which consists of polyoxyalkylene aryl ether, polyoxyalkylene alkyl ether, and polycarboxylate, and it combines polyoxyalkylene aryl ether and polycarboxylate. It is more preferable to use.

When using in combination with polyoxyalkylene aryl ether and polycarboxylate, it is more preferable to use it combining polyoxyalkylene tristyryl phenyl ether and polycarboxylate. Although the use weight ratio of this polyoxyalkylene tristyryl phenyl ether and polycarboxylate is not specifically limited, The range of 8: 2-3: 7 is preferable, and the range of 7: 3-5: 5 is more preferable.

As for the total usage-amount of surfactant, the range of 0.1-10 weight% is preferable with respect to the whole agricultural / horticultural germicide composition, and the range of 1-5 weight% is more preferable.

Additives, such as a extender, can be added as needed, and the specific example is as above-mentioned.

The formulation of the present invention is not particularly limited, but a hydrating agent is preferable. Although the average particle diameter of a hydrating agent does not have a restriction | limiting in particular, It is preferable that it is 10-100 micrometers from a viewpoint of obtaining the outstanding handleability and water dilution physical property.

The agricultural and horticultural fungicide composition of the present invention, other active compounds other than thiophanate methyl and tricyclazole, such as insecticides, poisonous mushrooms, fungicides, insecticides and insecticides, nematicides, fungi, growth regulators, herbicides Or you may use together with 1 type, or 2 or more types of synergist.

The agricultural / horticultural germicide composition which concerns on this invention can be used for control of a wide range of plant diseases. As the representative example, the representative example of the plant disease which is controlled using the agrochemical composition mentioned above is mentioned, for example.

Among them, the agricultural / horticultural germicide composition of the present invention has a particularly excellent effect on rice blast (leaf blast, ear blast).

3) Plant disease control method

The plant disease control method of this invention is characterized by applying the agricultural / horticultural germicide composition of this invention to a agricultural horticultural crop.

There is no restriction | limiting in particular in the agricultural and horticultural crop made into the application, Rice is especially preferable.

As a method of applying a agricultural / horticultural germicide composition to a agricultural / horticultural crop, the method of diluting an agricultural / horticultural germicide as it is, or appropriately with water, and applying it to a plant, a seed, a water surface, or the soil is mentioned.

For example, when the agricultural / horticultural germicide composition is used as a hydrate, it is diluted to a predetermined concentration with water and used as a solution, suspension or emulsion. The application concentration of the hydrating agent is usually 1 to 1000 ppm, preferably 10 to 250 ppm.

The application amount of the agricultural and horticultural germicide composition varies depending on weather conditions, preparation form, application time, application method, application place, control target disease, target crop, etc., and is usually 1 to 1,000 g, preferably as an active ingredient amount per hectare. Is 100 to 600 g.

The application time varies depending on the crops to be targeted, for example, in the case of rice blasting, from 4 weeks before flowering until flowering.

According to the control method of the present invention, excellent control effects can be obtained against various crop diseases, particularly rice blasting. In addition, the application period of crop disease control is long. Therefore, the degree of freedom of application of the control agent (agrohorticultural germicide composition) is high.

Example

Next, an Example demonstrates this invention further in detail. However, this invention is not limited to a Example at all.

(Example 1)

18.6 parts by weight of kaolinite clay 1: 1 (weight ratio) mixture of polyoxyethylene tristyrylphenyl ether and precipitated silica (FPP-03102, manufactured by Nippon Emulsifier) 3.0 parts by weight of polycarboxylate (Newkalgen-WG-5, Takemoto Oil Industries Co., Ltd. 1.0 part by weight, thiophanate methyl (TOD-019P, manufactured by Nippon Soda Co., Ltd.) 36.7 parts by weight, and 40.7 parts by weight of tricyclazole, were added, and a ribbon blender (1000 W × 3000 L, 3.8 m 3, 7.5 kw, manufactured by Nisso Engineering Co., Ltd.) for 60 minutes.

The obtained mixture was pulverized with a high-speed impact grinding machine (Contraflex 250CW, main body side: 11200 rpm, door side: 2800 rpm, pulverization capacity: about 180 kg / hr, manufactured by Hosokawa Micron). Next, this pulverized product was mixed again with a ribbon blender (1150 W x 3500 L, 4.0 m 3, 5.5 kw, manufactured by Nisso Engineering Co., Ltd.).

The resulting mixture was pulverized again with a jet mill (ULMAX 18BU-9N, air volume: about 10 Nm 3 / h, grinding capacity: about 90 kg / hr, manufactured by Nisso Engineering Co., Ltd.), and then ribbon blender (1000 W × 3000 L, 4.0). M 3, 7.5 kw, manufactured by Nisso Engineering Co., Ltd.) for 60 minutes, to prepare a hydrated agent 1 having an average particle diameter of 6.58 μm.

(Test Example 1 rice blast control effect confirmation test)

About the hydration agent 1 obtained in Example 1, the following test was done in order to investigate the control effect on a rice blast.

Seeds of rice (kind: OM1490) were grown (180 kg / ha), rice was grown, leaf blast or ear blast was developed, and the above-mentioned hydration agent 1 was dispersed at the dosage shown in the following table at the following timing.

* For leaf blasts, when the leaf disease reaches 20%

* For Isaac Blast, 7 days before flowering

The control effect of Hydration 1 on rice blast (leaf blast and ear blast) was evaluated by the disease incidence and the disease index.

a) leaf blast

Disease incidence

The disease was evaluated by the numerical value calculated by the following formula (1) by investigating the number of leaves diseased in the leaf blasting disease 1 day before, 7 days after, 14 days and 21 days after the spread of the hydrating agent 1, respectively. . The results are shown in Table 1 below.

Table 1 Dosage
(Kg / ha) 1 day before spread 7 days after 14 days after 21 days after Hydration 1 0.5 21.33 9.33 8.00 10.00 Hydration 1 0.6 19.33 8.66 6.00 9.33 No treatment - 21.33 19.33 18.00 25.33

(Ii) disease index

Three leaves on top of 50 rice were irradiated 1 day before the spread of the hydrating agent 1 and after 7 days, 14 days and 21 days after the dispersion, respectively. And the disease index of the leaf blast was computed by following formula (2). The results are shown in Table 2 below.

In the formula, N represents the total number of leaves irradiated, n ₁ represents the longevity of the leaves of the leaf crust corresponding to score 1, n ₃ represents the longevity of the leaves of the leaf crust corresponding to score 3, and n ₅ is The longevity of the leaves of the leaf blasts corresponding to the score 5 is shown, n ₇ represents the longevity of the leaves of the leaf blasts corresponding to the score 7, and n ₉ represents the longevity of the leaves of the leaf blasts corresponding to the score 9.

In addition, the score of leaf blast,

1: when the effect on the leaf is less than 1%

3: when the effect on the leaf is less than 5%

5: when the effect on the leaf is less than 25%

7: when the effect on the leaf is less than 50%

9: It was set as the case where the influence on a leaf is 50% or more.

Table 2 Dosage
(Kg / ha) 1 day before spread 7 days after 14 days after 21 days after Hydration 1 0.5 2.37 1.03 0.88 1.25 Hydration 1 0.6 2.14 0.96 0.66 1.18 No treatment - 2.66 3.03 3.48 4.29

b) Isaac Blast

Fifty flowers were irradiated seven days before harvest to check the number of ear leprosy in the ear blast. And the disease of the ear blast disease was computed by following formula (3).

In addition, the disease index was computed by following formula (4). The results are shown in Table 3 below.

In the formula, N represents the total number of flowers irradiated, n ₁ represents the number of flowers of the ear blast corresponding to score 1, n ₂ represents the number of flowers of the ear blast corresponding to score 2, and n ₃ represents the score The number of flowers of the ear blast corresponding to 3 is shown, n ₄ represents the number of flowers of the ear blast corresponding to score 4, and n ₅ represents the number of flowers of the ear blast corresponding to score 5.

In addition, the score of the ear blast,

1: 1, 2 small ears are affected

2: when the influence on the small ear is less than 30%

3: When the influence on a small ear is 30% or more and 60% or less

4: When the influence on the small ear exceeds 60%

5: The influence on cone inflorescence was made into 1 or more cases.

TABLE 3 Dosage
(Kg / ha) Disease Disease index Hydration 1 0.5 0 0 Hydration 1 0.6 0 0 No treatment - 10 10

From the above result, it was found that the hydration agent 1 of Example 1 had no disease, and had excellent control effect in any of leaf fever and ear fever.

(Test Example 2 weakness test)

In order to evaluate the weakness of the hydration agent 1, the rice state after 2 days, 4 days, and 7 days after the dispersion of the hydration agent 1 was observed.

When no weakness was observed in rice, it evaluated as "1" and the case where rice died by "9" in 9 steps of 1-9. The evaluation results are shown in Table 4 below.

Table 4 Dosage
(Kg / ha) 2 days after After 4 days 7 days after Hydration 1 0.5 One One One Hydration 1 0.6 One One One

From the above result, the weakening agent 1 of Example 1 was not observed similarly to the conventional fungicide composition etc.

(Example 2)

Thiophanatemethyl and tricyclazole were dissolved in DMF (1.5% Tween 20 soluble) at the ratio shown in Table 5, and then adjusted to the concentration shown in Table 5 with 0.02% Tween 20 soluble deionized water to prepare a chemical solution.

After spreading a sufficient amount of the chemical liquid by using a perfume nozzle throughout the rice pot of about 3.5 foliar period, and air-dried the chemical liquid, rice blast spores (published strain: Pyricularia oryzae Po-5 weeks) suspension (about 5 × 10 ⁴ pieces / ml) were spray-inoculated to the whole state, and it was left still to wet conditions (acrylic box) of 23 degreeC constant temperature room. After about 20 hours, the box was opened and left standing in the same thermostat. After 7 days or 8 days after the inoculation, the number of lesions of the third or fourth leaf of the fully developed leaf at the time of inoculation was investigated, and the control value was calculated. The results are shown in Table 5.

As shown in Table 5, the result of the control value of the treatment tool using the chemical liquid containing thiophanate methyl and tricyclazole was obtained larger than the Corby's theoretical value.

Preventive examination
Tricyclazole 0.03 ppm 0 ppm Thiophanatemethyl
6.3 ppm 96.9 (88.3) 68.8 0 ppm 62.5 <3.2 pieces> ? The numerical value in the cell indicates the control value.
? Numerical values in parentheses indicate Corby's theoretical value.
? Numbers in <> indicate the number of lesions per leaf of the untreated group.

(Example 3)

After dissolving thiophanate methyl and tricyclazole in DMSO at the ratio shown to Tables 6-7, the obtained solution was dissolved in PDA medium so that it might become the density | concentration shown in Tables 6-7, and the agar plate was produced. After the agar plate was prepared, the flora of the Pyricularia oryzae Po-5 strain (4 mm in diameter) was toothed. After standing at 20 ° C for 10 days, the mycelial diameter was measured to determine the mycelial elongation inhibition rate. The results are shown in Tables 6 to 7. As shown to Tables 6-7, the result which the mycelial elongation inhibition rate of the treatment tool using the agar plate (chemical liquid) containing thiophanate methyl and tricyclazole was larger than the Corby's theoretical value was obtained.

Agar plate antibacterial test
Tricyclazole 100 ppm 0 ppm
Thiophanatemethyl
1 ppm 100 (91.9) 35.8 0.1 ppm 94.7 (88.3) 7.4 0 ppm 87.4 <47.5 mm> ? Intracell numbers indicate mycelial kidney inhibition.
? Numerical values in parentheses indicate Corby's theoretical value.
? The numerical value in <> shows the mycelial growth (mm) of an untreated tool.

Agar plate antibacterial test
Tricyclazole 100 ppm 10 ppm 0 ppm Thiophanatemethyl 1 ppm 100 (96.2) 80.4 (56.5) 56.5 0 ppm 91.3 0 <46 mm> ? Intracell numbers indicate mycelial kidney inhibition.
? Numerical values in parentheses indicate Corby's theoretical value.
? The numerical value in <> shows the mycelial growth (mm) of an untreated tool.

From the above result, it turned out that synergistic effect is acquired by using thiophanate methyl and tricyclazole together.

The pesticide composition and the agricultural / horticultural germicide composition of the present invention can be used safely and are industrially useful because they have excellent control effects against weeds and plant diseases.

Claims (10)

(1) polyoxyalkylene aryl ether, (2) polycarboxylate, and (3) agrochemical active ingredients,
The pesticide composition characterized by the above-mentioned (3) pesticide active ingredient containing thiophanate methyl and tricyclazole. The method of claim 1,
The pesticide composition characterized by the above-mentioned (1) polyoxyalkylene aryl ether being polyoxyalkylene aryl phenyl ether. The method of claim 1,
Agrochemical composition, characterized in that the hydrate. The method of claim 1,
(3) The pesticide composition, characterized in that the pesticide active ingredient is a horticultural sterile active ingredient. delete Agrohorticultural fungicide compositions comprising thiophanatemethyl and tricyclazole as active pesticides. The method according to claim 6,
A horticultural fungicide composition comprising thiophanate methyl and tricyclazole in a weight ratio of from 1: 5000 to 500: 1. The method according to claim 6,
The total content of thiophanate methyl and tricyclazole is 0.01 to 90 weight% with respect to the whole agricultural / horticultural germicide composition, The agricultural / horticultural germicide composition characterized by the above-mentioned. The method according to claim 6,
Agrohorticultural fungicide composition, characterized in that the hydrate. A method for controlling plant diseases, wherein the fungicide composition for agrohorticulture according to any one of claims 6 to 9 is applied to an agrohorticultural crop.