WO2004105489A1

WO2004105489A1 - Agricultural fungicide composition

Info

Publication number: WO2004105489A1
Application number: PCT/JP2004/007982
Authority: WO
Inventors: Takeshi Shindo; Koji Sugimoto
Original assignee: Ishihara Sangyo Kaisha, Ltd.
Priority date: 2003-06-02
Filing date: 2004-06-02
Publication date: 2004-12-09

Abstract

With a view toward improving the fungicidal efficacy and/or aftereffect fluazinam as an agricultural fungicidal active ingredient, there is provided an agricultural fungicide composition characterized in that (a) fluazinam as a fungicidal active ingredient, (b) poly-1-p-menthene and/or di-1-p-menthene and (c) an agriculturally acceptable coadjuvant component are contained therein. There is further provided a method of controlling plant diseases through strengthening of plant resistance to diseases, characterized in that (a) fluazinam as a fungicidal active ingredient and (b) poly-1-p-menthene and/or di-1-p-menthene are administered to plants.

Description

Description Agricultural fungicide composition Technical field

The present invention relates to an agricultural fungicidal composition comprising fluazinam, poly-1-P-menten and / or di-11-P-menthen, and components of an agriculturally acceptable auxiliary. In addition, the present invention relates to a method for enhancing plant disease resistance and controlling plant diseases by using poly-1-p-menten and Z- or g-11-p-menten, and fluazinam. Background art

Fluazinam (chemical name: 3-chloro-1-N- (3-chloro-5-trifluoromethyl-2-pyridyl) -α,, α-trifluoro-2,6-dinitro-1-ρ-toluidine) is a fungicide for agricultural and horticultural use. It is an active ingredient and is a compound described in Japanese Patent No. 312557.

The ability of di-1-ρ-menthen to improve the chemical properties of pesticides in plants is described in WO 81/187. The use of di-1-ρ-menthen as a coating agent in a method for controlling plant diseases is described in Japanese Patent No. 1625551.

However, these prior arts do not describe a method for increasing the disease resistance of fluazinam to plants and controlling plant diseases with poly- 11-ρ-menten and / or di- 11-p-menten.

Conventionally, there has been a demand for a method for effectively controlling plant diseases by increasing the disease resistance of agricultural and horticultural crops when applying fluazinam, which is an active ingredient for agricultural use, to plants. Disclosure of the invention

The present inventors have surprisingly found that the use of a mixture of fluazinam and poly-1_ρ-menthen and / or di-1-menten enhances the resistance of the plant, thereby improving the bactericidal efficacy of fluazinam. It was found that the residual efficacy was improved and that plant diseases could be controlled efficiently.

That is, the present invention relates to (a) fluazinam as a bactericidal active ingredient, (b) poly-111 p-menthen and Z or di-1-p-menten, and (c) an agriculturally acceptable auxiliary agent. The present invention relates to a fungicidal composition for agricultural use, comprising: The present invention also relates to a method for enhancing the disease resistance of a plant, comprising: (a) fluazinam, which is a bactericidal active ingredient; and (b) poly 1-p-menthen and / or g 1_ p- The method according to the above, characterized in that the maintenance is applied to plants. Furthermore, the present invention provides a method for enhancing plant disease resistance and controlling plant disease, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) poly 1-p-menten and / or The present invention relates to the aforementioned method, which comprises applying g-p-menthen to a plant. BEST MODE FOR CARRYING OUT THE INVENTION

Fluazinam used in the present invention is usually in the form of a wettable powder, an emulsion or an aqueous suspension. Preferably it is 2. Fluazinam wettable powder is commercially available under the trade name Freonside wettable powder (manufactured by Ishihara Sangyo Co., Ltd.). Fluazinam aqueous suspension is commercially available under the trade name Frontside SC (manufactured by Ishihara Sangyo Co., Ltd.). Have been. The bactericidal active ingredient of the bactericide composition of the present invention includes, in addition to those containing fluazinam alone, other bactericidal active ingredients that do not adversely affect fluazinam. Examples of the above other active ingredients for fungicides include: 11- (2-cyano-2-methoxyiminoacetyl) -13-ethylperia (hereinafter, referred to as simoxanil), tetrachloromouth isophthalonitrile (hereinafter, referred to as chlorosalonyl), dimethyl 4,4 1- (o-phenylene) bis- (3-thioallophanate) (hereinafter referred to as thiophane-methyl), 4- [3- (4-chlorophenyl) -13- (3,4-dimethoxyphenyl) acryloyl Morpholine (hereinafter referred to as dimethomorph), (RS) — 3— (3,5-dichloromethyl) -1,5-methyl-5-vinyl-1,3-oxazolidine-12,4-dione (hereinafter referred to as vinclozolin), 3 — (3,5-dichlorophenyl) 1 N-isopropyl-1,2,4-dioxoimidazolidine

(Hereinafter referred to as iprodione), N- (3,5-dichlorophenyl) -11,2-dimethylcyclopropane-1,1,2-dicarboximide (hereinafter referred to as procymidone), 3'-isopropoxy-1-o- Toluanilide (hereinafter referred to as mepronil), α,, α-trifluoro-3'-isopropoxy-1-ο-toluanilide (hereinafter referred to as flutolanyl), methyl (Ε) —methoxyimino [α- (ο-tolyloxy) -1ο Acetate) (hereinafter referred to as kresoxim-methyl), methyl (Ε)-2-

{2- [6- (2-cyanophenoxy) pyrimidine-14-yloxy] phenyl} -13-methoxyacrylate (hereinafter referred to as azoxystrobin), (Ε) —2-methoxyminino di-methyl 2- (2-phenoxyphenyl) acetamide (hereinafter referred to as methinostrobin), methyl (Ε) — 3-methoxy-1 2 -— [2- (6-trifluoromethyl-2-pyridyloxymethyl) phenyl Acrylate (hereinafter referred to as picoxystrobin), methyl = (Ε) -methoxyminino {(E) -a- [1- (1-,-, 1-trifluoro-m-tolyl) ethylideneaminoxy] -1 o-tolyl} ase (to be referred to as trifloxystrobin), N- (4,6-dimethylpyrimidine-12-yl) aniline (to be referred to as pipyrimesanil), 2-anilino-4 Methyl- 6— (1— Pinyl) pyrimidine (hereinafter, will leave mepanipyrim), 4-chloro 2-Shiano 1 one dimethylsulfamoyl over 5- (4-methyl-phenyl) called imidazo Ichiru (hereinafter Shiazofuamido), 3, 5-dichloro port - N-

(3-chloro-1-ethyl-1-methyl-2-oxopropyl) 1-4-methylbenzamide (hereinafter referred to as ipprovalicarp), N— (α-cyano-2-cynyl), 4-ethyl-2- (ethylamino) -15-thiazolecarpoxyamide ( Hereinafter referred to as eta poxam), Benthiavalicarb (bench avaricarp) and the like. Among them, simoxanil, chlorosalonyl, thiophane-methyl, dimethomorph, azoxystrobin, kresoxim-methyl, picoxystrobin, trifloxycystrobin, methinostrobin, cyazofuamide, ipprovalicarp, etapoxam or benchaparicarp is preferred.

In the present invention, for the purpose of enhancing plant resistance in combination with fluazinam, Poly 1-p-menthen (Poly-p-menthene) and / or G-p-menthene (Di-lp-menthene) are used. Used. Among them, it is desirable to use poly-1-p-menthen. These can be used on their own or as solutions or emulsions Examples of poly-11p-menthen include Nu-Film-p (manufactured by Intracrop), trade name Barclay Clinger (manufactured by Barclay Chemicals (MD) Limited), trade name Biothene (manufactured by Intracrop) and the like. Poly-1-p-menthen 96% content. In addition, as the G-P-Menten, the product name is Nu-Film-17 (Miller Cheiical & Fert i 1izer Corporation), the product name is Pin-0- Film (manufactured by Intracrop), and the product name is LASTICK (Helena Chemical Company). And 96% of g-p-menten content such as Vapor Gard (Miller Chemical & Fertiizer Corporation).

Poly-P-menten and Z- or G-p-menten used in the present invention may be used alone or as a mixture thereof, depending on the preparation form of fluazinam and the plant to be sprayed. In general wettable powders, when used in the form of a spray liquid, it is used so that the solid content of poly 1-p-menten and / or di-11-p-menten in the spray liquid is 0.001 to 1.0% by weight. Good to do. In addition, when added to the flowable in advance, add poly-p-menthen and / or g-p-menthen solids in the flowable at a ratio of 0.5 to 50.0% by weight, dilute with water and spray. It is advisable to use the liquid so that the solid content of poly-p-menten and / or g-p-menten in the solution is 0.001 to 1.0% by weight. However, the present invention is not limited to these, and the amount of fluazinam used can be varied depending on the formulation form, application concentration, plant to be applied, applicable pests and the like.

Instead of poly 1-p-menten and Z or di-11-p-menten, common agricultural fixing agents can be combined with fluazinam, but plant resistance enhancement is inadequate and disinfecting Improvement of efficacy and / or residual effect is not sufficient.

Examples of the above-mentioned general agricultural fixing agents are given below.

(A) Acrylic resin emulsion

Polyacrylic acid, polyacrylamide, polyacrylonitrile, poly (methyl methacrylate), poly (ethyl acrylate butyl acrylate), trade name Hitec AC-3208 (40% acrylic resin emulsion, manufactured by Toho Chemical Co., Ltd.), etc. No.

(B) Cellulose ethers

For example, hydroxyethyl cellulose, sodium carboxymethyl cell, mouth and the like can be mentioned.

(C) Cellulose esters

An example is methylcellulose.

(D) Epoxy resin

For example, trade name Epicote 828 (Epikote 828), trade name Pico 834 (Epikote83 4), trade name Pico 1001 (EpikotelOOl) (all manufactured by Japan Epoxy Resins Co., Ltd.), etc. Is mentioned.

(E) Hydrocarbon resin

An example is petroleum resin.

(F) Polyester resin

(G) Polyether resin

(H) Polyamide resin

(I) Silicone resin and polymer

(J) Styrene polymer

For example, polystyrene and styrene / butadiene polymer and the like can be mentioned. (K) Thermosetting polymer

For example, melamine-formaldehyde copolymer, phenol-formaldehyde resin, urea-formaldehyde resin and the like can be mentioned.

(L) Natural fats and oils

Examples include flax oil, flax oil / grill oil, linoleic acid, linolenic acid and the like. The composition of the present invention comprises (a) fluazinam as a bactericidal active ingredient, (b) poly 1-p-menthen and no or gee 1-P-menten, and (c) an agriculturally acceptable adjuvant. After mixing and diluting, they can be sprayed on the target plant by any method, preferably by spraying.

In the present invention, plant disease resistance can be obtained by applying (a) fluazinam, which is a bactericidal active ingredient, and (b) poly-11-p-menthen and / or di-1-P-menten, to a plant. Mosquito can be strengthened. By applying this method to plants, it is thought that antiseptic biosynthesis is promoted in plants or systemic acquired resistance response is induced, thereby enhancing plant resistance. Examples of the antibacterial substance include phytoalexin (Phytoalexin), prohibitin (Prohibit in), inhibitin (inhibit in), post-inhibitin (post inhibit), and the like. Phytoalexin is an antibacterial substance that is not present in healthy plant tissues and is only induced and synthesized after infection with pathogens and plays a major role in plant disease resistance reactions. For example, pisatin (endo) , Glyceolin (soy), vegetarian bulgarine (beet), ricitin (potato), 6-methoxymethylene (carrot), brassinine (white cabbage), licitin (tomato), rubimin (nasal), α-viniferin (grape) , Power psidiol (Yubako) and the like. Prohibitin is an antibacterial substance present at a sufficient concentration in healthy plant tissues, and inhibitin is an antibacterial substance present at a low concentration in healthy plant tissues and increases in concentration after being infected with pathogenic bacteria. Is a substance that exists in healthy plant tissues and does not exhibit antimicrobial activity by itself, but undergoes a simple chemical change to exert its antibacterial activity when violated by pathogenic bacteria. By this method, the disease resistance of the plant is enhanced, so that the plant disease can be efficiently controlled. As a result, the bactericidal efficacy and Ζ or residual efficacy of fluazinam are further improved.

It is desirable to apply the composition of the present invention to the method of the present invention. The (a) fluazinam as a bactericidal active ingredient and (b) poly-p-menten and Z or di-l-P-menten which constitute the composition of the present invention are the same as in the case of conventional agricultural chemical formulations. In addition, (c) a powder, granule, water dispersible granule, wettable powder, aqueous suspension, oil suspension, water solvent, emulsion, liquid, paste, It is used by being formulated in various forms such as an aerosol and a micro-spray, and may be any of the usual forms used in the art as long as the object of the present invention is met. Auxiliaries used in the formulation include diatomaceous earth, slaked lime, silica sand, ammonium sulfate, urea, calcium carbonate, talc, white pot, vermiculite, kaolin, bentonite, kaolinite and sericite, clay, carbonate Solid carriers such as sodium, baking soda, sodium sulfate, zeolite, starch, carboxymethyl cellulose; water, toluene, xylene, solvent naphtha, dioxan, acetone, isophorone, methyl isobutyl ketone, benzene, cyclohexane, cyclohexane Solvents such as hexanone, methylnaphthylene, dimethylsulfoxide, dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, and alcohol; fatty acid salts, benzoates, alkylsulfosuccinates, dialkylsulfosuccinates , Polycarboxylic acid salts, alkyl sulfates, alkyl sulfates, § Alkyl sulfate, alkyl diglycol ether sulfate, alcohol sulfate, alkyl sulfonate, alkyl aryl sulfonate, aryl sulfonate, lignin sulfonate, alkyl diphenyl ether disulfonate, polystyrene sulfonate, Alkyl phosphates, alkylaryl phosphates, styrylaryl phosphates, polyoxyethylene alkyl ether sulfate esters, polyoxyethylene alkylaryl ether sulfates, polyoxyethylene alkylaryl ether sulfates Anionic surfactants such as polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl aryl phosphate, naphthylene sulfonate formalin condensate Spreading agent: sorbitan fatty acid ester, glycerin fatty acid ester, fatty acid polydalicelide, fatty acid alcohol polydalicol ether, acetylendalicol, acetylenic alcohol, oxyalkylene block polymer, polyoxyethylene alkyl ether, boroxyethylene alkyl Aryl ether, polyoxyethylene styryl alcohol, polyoxyethylene glycol alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene hydrogenated castor oil Nonionic surfactants and spreading agents such as polyoxypropylene fatty acid esters; olive oil, kapok oil, castor oil, palm oil, camellia , Coconut oil, sesame oil, corn oil, rice bran oil, peanut oil, cottonseed oil, soybean oil, rapeseed oil, linseed oil, tung oil, vegetable oil or mineral oil such as liquid paraffin fin, and the like. These adjuvants can be selected from those known in the art without departing from the purpose of the present invention. In addition, various commonly used auxiliaries such as a bulking agent, a thickener, an anti-settling agent, an anti-freezing agent, a dispersion stabilizer, a safener, a fungicide and the like can be used. The compounding ratio of the compound of the present invention and various adjuvants is generally 0.005: 99.995 to 95: 5, preferably 0.2: 99.8 to 90:10. In the actual use of these preparations, they can be used as they are, or can be diluted to a predetermined concentration with a diluent such as water, and added with various spreading agents as necessary. In the composition of the present invention, a suitable mixture weight ratio of fluazinam to poly 1-p-menten and / or G 1-P-menten is generally 1: 500 to 500: 1, preferably 1:10 to 100. : 1, more preferably 1: 2 to 10: 1, most preferably 1: 1 to 5: 1.

In the composition of the present invention and the method of the present invention, in place of the poly-1-p-menthen and / or di-11-p-menthen, a polyvinyl acetate emulsion, gum arabic, and a poly (ethylene glycol) resin ester are used. At least one additive selected can be used. Also at this time, the effect of enhancing the resistance, the bactericidal effect and / or the residual effect of the plant is good. The amounts of these additives used and the mixing weight ratio with fluazinam are the same as those in the case of using poly-1-p-menten and / or di-p-menthen.

As the polyvinyl acetate emulsion, a commercially available bond for woodworking can be used. For example, woodworking pounds (Konishi) contain 40% by weight of polyvinyl acetate emulsion as solids. In addition, brand name Movinyl DC (containing 56% by weight of solid content), brand name Movinyl DC 02 (containing 60% by weight of solid content), brand name Movinyl 116 (Mowinyl 116; 52% by weight of solid content) Movinyl 116 (Mowinyl 300G; containing 50% by weight of solid content) (both Movinyl manufactured by Clariant Japan) can be used. As gum arabic, D-gal ac tose, L-arab inose, L-rh Those containing about 80% of a branched polysaccharide having amnose and D-glucuronic acid as constituent sugars can be used.

Examples of the polyoxyethylene resin acid ester include Spray Seki-ichi (active ingredient polyoxyethylene resin acid ester 70%; manufactured by Arisu Life Science Co., Ltd.) and trade name Neoesterin (polyoxyethylene resin acid ester and polyoxetylene) Fatty acid ester mixture 10.0%, polyoxyethylene nonylphenyl ether 20.0%; Kumiai Chemical Industry Co., Ltd.) and the like can be used.

Thus, according to the present invention, when fluazinam is used in combination with poly 1_p-menten and Z or di-l-P-menten, the disease resistance of the plant is enhanced. Alternatively, a useful method that can improve the residual effect can be provided.

Next, preferred embodiments of the method of the present invention and the fungicide composition of the present invention (hereinafter, abbreviated as the present composition) will be described, but the present invention is not limited thereto.

(1) contain (a) fluazinam as a bactericidal active ingredient, (b) poly-p-menthen and / or g-p-menten, and (c) components of pesticidally acceptable auxiliaries. A disinfectant composition for agricultural use, characterized in that:

(2) The agricultural fungicide composition according to (1), wherein the component (b) is poly-p-menthen.

(3) (a) fluazinam as a bactericidal active ingredient, (b) at least one additive selected from the group consisting of polyvinyl acetate emulsion, gum arabic and polyoxyethylene resin acid ester, and ( c) A fungicide composition for agricultural use, characterized by containing a component of an agriculturally acceptable adjuvant.

(4) The agricultural disinfectant composition according to the above (1), (2) or (3), comprising fluazinam and other disinfectant active ingredients as the disinfectant active ingredients.

(5) Other bactericidal active ingredients are simoxanil, chlorosalonyl, thiophanate methyl, dimethomorph, vinclozolin, iplodione, procymidone, mepronil, flutranil, azoxystrobin, metominostopin, picoxystrobin, trifloxystrobin, The agricultural fungicidal composition according to (4), which is at least one selected from pipyrimesanil, mepanipyrim, cyazofuamide, ip-mouth varicarp, etapoxam and bencia varicarp.

(6) A method for enhancing the disease resistance of a plant, comprising: (a) fluazinam, which is a bactericidal active ingredient; and (b) poly-l-p-menten and Z or G-l! ) The method as described above, wherein one menten is applied to a plant.

(7) The method according to (6), wherein the agricultural fungicide composition according to (1) is applied to a plant.

(8) A method for enhancing plant disease resistance and controlling plant disease, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) poly-1_p-menthen and Z or G1. The above method, which comprises applying 1 p 1 menten to a plant.

(9) The method according to (7), wherein the agricultural fungicide composition according to (1) is applied to a plant.

(10) A method for enhancing plant disease resistance, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) polyvinyl acetate emulsion, gum arabic, and polyoxyethylene resin acid ester. The above method, wherein at least one additive selected from the group is applied to a plant.

(11) The agricultural fungicide composition according to (3) is applied to a plant. The method according to (10) above

(12) A method for enhancing plant disease resistance and controlling plant disease, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) polyvinyl acetate emulsion, Arabic rubber and polyoxygen. The above method, wherein at least one additive selected from the group consisting of ethylene resin acid esters is applied to plants.

(1 3) The method according to ti (1 2), wherein the agricultural fungicidal composition according to (3) is applied to a plant.

(14) The above-mentioned (6), (7), (8), (9), (10), (11), (11), (12) or (11), wherein the part of the plant to be applied is a leaf, stem or root. 3) method.

(15) The method according to the above (14), wherein the site of the plant to be applied is a leaf.

(16) A method for improving the bactericidal activity and Z or residual efficacy of fluazinam, which is a bactericidal active ingredient, by the method of (8), (9), (12) or (13).

Next, test examples are described in order to explain the present invention in more detail, but the present invention is not limited to these. Test example

Test Example 1 (Efficacy test for cucumber disease)

(1) Preparation of chemical solution

The additive was dispersed in water so that the weight of the additive would be 200 ppm, and Flonside SC (trade name, manufactured by Ishihara Sangyo Co., Ltd.) was added to the dispersion so that the concentration of fluazinam would be the predetermined concentration. Among the additives used, gum arabic is a solid and the others are liquids). In addition,% of the additive is% by weight, and the same applies to the following test examples. For comparison, a chemical solution containing a predetermined concentration of fluazinam was prepared by diluting FRONSIDE SC under the trade name with water.

(2) Cucumber and disease prevention effect test

Cucumber (cultivar: true leaf) was cultivated in a plastic bowl with a diameter of 7.5 cm. When the 1.5 leaf stage was reached, a chemical solution containing a predetermined concentration of fluazinam was sprayed with a spray gun in a sufficient amount (20 ml / pot). The next day after spraying the drug solution, cucumber and spore suspension (Pseudoperonospora cubensis) spore suspension (1.0 × 10 ⁵ ) were spray-inoculated and left in a moist chamber for 6 hours. The area was investigated, and the control value was calculated by the following formula. The results are shown in Table 1.

Control value = {1-(Lesion area of treated area) Lesion area of untreated area} X 100 Table 1

(3) Cucumber and residual disease test Cultivation of cucumber (variety: true leaf) in a 7.5 cm diameter plastic pot. After reaching the 1.5 leaf stage, spray a sufficient amount (20 ml / pot) of a specified concentration of the drug solution with a spray gun and grow for 8 days. I planted. Then, cucumber and Pseudoperonospora cubensis zoospore sac suspension (1.0 × 10 ⁵ pcs) were sprayed and inoculated, placed in a moist chamber for 6 hours, raised at 20 for 5 days, and controlled similarly to (2) The values were calculated and the results are shown in Table 2. Table 2

Test Example 2 (Tomato late blight prevention effect test 1)

(1) Preparation of chemical solution

The additive was dispersed in water so that the weight of the additive would be 200 ppm, and Flonside SC (trade name, manufactured by Ishihara Sangyo Co., Ltd.) was added to the dispersion so that the concentration of fluazinam would be the predetermined concentration. Among the additives used, gum arabic is a solid and the others are liquids). For comparison, a drug solution containing a predetermined concentration of fluazinam was prepared by diluting FRONSIDE SC under the trade name with water.

(2) Tomato epidemic prevention effect test

Tomatoes (variety: Bon terrorism) were cultivated in a plastic bowl with a diameter of 7.5 cm, and when the three-leaf stage was reached, a chemical solution of a predetermined concentration was sprayed with a spray gun in a sufficient amount (20 ml / pot). The next day after spraying, Phytophthora infestans zoospore sac suspension (1.0X10 ⁵ pcs.) Was sprayed and inoculated. After 6 hours in a moist chamber, seedlings were grown at 20 ° C for 3 days. The disease index was investigated and the control value was calculated according to the following formula. The results are shown in Table 3 (the average disease incidence in the untreated plot was calculated as 100). Disease index 0: No lesions observed

1: Slight lesions are observed

2: Lesion area is less than 25% of leaf area

3: Lesion area is 25% to less than 50% of leaf area

4: Lesion area is 50% or more of leaf area

Severity = [(0XA + 1XB + 2XC + 3XD + 4XE) I {4x (A + B + C + D + E)}] X100

A: Disease index 0 leaves

B: Disease index 1 leaf number

C: Disease index 2 leaves

D: Disease index 3 leaves E: Disease index 4 leaves

Control value = {1-(average disease incidence in treated plots / average disease incidence in untreated plots)} X 00 Table 3

(3) Tomato late blight test

Cultivate tomatoes in a 7.5 cm diameter plastic pot. When the 3 leaf stage has been reached, spray a prescribed amount of a chemical solution with a spray gun in a sufficient amount (20 ml / pot), raise the seedlings for 8 days, and grow the tomato disease. (Phytophthora infestans) Sprayed zoospore suspension (1.0X10 ⁵ pcs), sprayed and inoculated in a moist chamber for 6 hours, raised at 20 for 3 days, calculated the control value in the same manner as (2), Table 4 shows the results. Table 4

Test example 3 (Tomato epidemic prevention effect test 2)

(1) Preparation of chemical solution

Poly-11p-Mentene is dispersed in water so that the content of 96% by weight becomes 200 ppm by weight, and a bactericide (Fronside SC (trade name: Ishihara Sangyo) (Manufactured by Dow-AgroSciences Co.) or trade name Dimandaisen wettable powder). For comparison, a chemical solution containing a predetermined concentration of the bactericide active ingredient was prepared by diluting the bactericide with water. (2) Tomato epidemic prevention effect test

Using the drug solution prepared in (1), a preventive effect test was performed according to the method of Test Example 2 (2), and the results are shown in Table 5. Table 5

Test example 4 (Tomato epidemic prevention effect test 3)

(1) Preparation of chemical solution

Disperse in water so that the fluazinam content is 500 ppm by weight and the content of poly-1-p-menthen 96% is the specified concentration (300 ppm, 250 ppm, 200 ppm, 150 ppm 100 ppm) by weight. The proportions of fluazinam and 96% poly-11p-menthen were 5/3, 2/1, 5/2, 10/3 and 5/1, respectively, by weight. Next, a drug solution was prepared so that the fluazinam concentration of each dispersion became a predetermined concentration. On the other hand, for comparison, a 500 ppm dispersion of Fronside SC under the trade name was diluted to prepare a drug solution so that the fluazinam concentration became a predetermined concentration.

(2) Tomato plague prevention effect test

Using the drug solution prepared in (1), a preventive effect test was performed according to the method of Test Example 2 (2), and the results are shown in Table 6. Table 6

(3) Using the drug solution prepared in (1), conduct a residual efficacy test according to the method of Test Example 2 (3). Performed, and the results are shown in Table 7 _(Table 7

Test Example 5 (Tomato Disease (Pest disease) Resistance Enhancement Test)

(1) Preparation of chemical solution

Poly-1- (p-menthen) was dispersed in water so that the content of 96% by weight became 200 ppm by weight, and then a chemical solution was prepared so that the concentration of FRONSIDE SC (trade name, manufactured by Ishihara Sangyo Co., Ltd.) became 500 PPH1. . For comparison, a chemical solution having a trade name of FRONSIDE SC containing no additives was prepared at a concentration of 500-1.

(2) Tomato epidemic prevention effect test

Cultivate tomatoes (variety: Bontellosa) in a plastic pot with a diameter of 7.5 cm. When the 4.5 leaf stage is reached, spray a predetermined concentration of chemical solution onto the third leaf of the tomato with a spray gun. Phytophthora infestans zoospore sac suspension (1.0 × 10 ⁵ ) was sprayed and inoculated, placed in a moist chamber for 6 hours, and then raised (2 days in TC for 4 days. The control value of each leaf was calculated in the same manner as in (1), and the results are shown in Table 8. In addition, the test was performed in a 5-tuple system.

Test Example 6 (A test for enhancing the resistance to cucumber disease (anthritis))

Japanese cucumber (cultivar: Sagami Hanjiro) was cultivated in a plastic pot with a diameter of 7.5 cm. When the 2.5 leaf stage was reached, a chemical solution containing a predetermined concentration of fluazinam was sprayed on the first leaf with a spray gun. Eight days after spraying the medicine, spraying and inoculating a conidia suspension (1.0 × 10 ⁵ ) of Cucumber anthracnose and leaving it in a moist chamber for 6 hours, then raising the seedlings at 20 for 5 days, and raising the second leaf disease The spot area was investigated, and the control value was calculated in the same manner as in Test Example 1. The results are shown in Table 9. In addition, the test was performed in 5 consecutive systems. Table 9

Test Example 7 (A test for enhancing the resistance to cucumber disease (mildew))

In Test Example 6, it was tested for replacing Kiyuuri anthracnose fungi conidia suspension (1 piece) to Kiyuuribe and mildew conidia suspension (1.0 × 10 ⁵ cells), and the results are shown in Table 1 0. Table 10

Test Example 8 (A test for enhancing the resistance to cucumber disease (mildew))

In Test Example 6, were tested for replacing Kiyuuri anthracnose fungi conidia suspension (1.0 × 10 ⁵ cells) in Kiyuuriu powdery mildew fungus conidia suspension (1.0 × 10 ⁵ cells), results are shown in Table 1 1 Was. Table 11

Test example 9 (potato disease (plague) resistance enhancement test)

(1) Preparation of chemical solution

Polly one! ) A dispersion was dispersed in water so that the content of 96% of one menten became 200 ppm by weight, and then a chemical solution was prepared such that the concentration of FRONSIDE SC (trade name, manufactured by Ishihara Sangyo Co., Ltd.) became 500 ppm. For comparison, a chemical solution having a trade name of FRONSIDE SC containing no additive was prepared at a concentration of 500 ppm.

(2) Potato plague prevention effect test

Potatoes (variety: baron) are cultivated in a 14 cm-diameter plastic pot, and a chemical solution of a predetermined concentration is sprayed on the first, second, and third leaves of the potato with a spray gun immediately before flowering. Phytophthora infestans zoospore sac suspension (1.0 × 10 ⁵ ) was sprayed and inoculated, placed in a moist chamber for 6 hours, and then grown at 20 ° C for 4 days. Similarly each leaf The control value was calculated and the results are shown in Table 12. In addition, the test was performed in 5 consecutive systems. Table 1 2

Industrial applicability

The present invention comprises (a) fluazinam as a bactericidal active ingredient, (b) poly-11P- and / or di-1-p-menthen, and (c) components of an agriculturally acceptable auxiliary. A fungicidal composition for agricultural use, or (a) fluazinam, which is a fungicidal active ingredient; and (b) poly 1-p-menten and Z or di 1-p-men, ten The present invention is intended to provide a method for controlling plant disease by enhancing plant disease resistance by applying the method to plants, and is useful in agriculture.

Claims

The scope of the claims

1. (a) fluazinam as a bactericidal active ingredient, (b) poly-p-menthene and Z or G-p-menthene, and (c) components of a pesticidally acceptable adjuvant. A disinfectant composition for agricultural use, which is characterized.

2. The fungicidal composition for agricultural use according to claim 1, which contains fluazinam and other fungicidal active ingredients as the fungicidal active ingredients.

3. Other fungicidal active ingredients include simoxanil, chlorosalonyl, thiophanatemethyl, dimethomorph, vinclozolin, iplodione, procymidone, mepronil, furtranil, azoxystrobin, kresoxim-methyl, methominostrobin, picoxystrobin, trifluoroxistrobin 3. The agricultural fungicide composition according to claim 2, wherein the composition is at least one selected from pin, pipyrimesanil, mepanipyrim, cyazofuamide, ipprovalicarp, etapoxam, and bentivalicarp.

4. The agricultural fungicide composition according to claim 1, wherein the component (b) is poly-1-p-menthen.

5. A method for enhancing the disease resistance of a plant, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) poly-1_p-menten and / or di-1-p-menthen, The above method, wherein the method is applied.

6. The method according to claim 5, wherein the agricultural fungicide composition according to claim 1 is applied to a plant.

7. A method for enhancing plant disease resistance and controlling plant disease, comprising: (a) fluazinam, a bactericidal active ingredient; and (b) poly-1-p-menten and Z or di-1. _ p

', Which is applied to plants.

8. The method according to claim 7, wherein the agricultural fungicide composition according to claim 1 is applied to a plant.