JP2018016562A - Treatment method of agricultural bactericidal agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pest controlling method of plant diseases by an agricultural bactericidal agent consisting of a 2-aminonicotinic acid ester derivative represented by formula [1] and a salt thereof.SOLUTION: There is provided a pest controlling method of plant diseases by using an agricultural bactericidal agent consisting of a 2-aminonicotinic acid ester derivative represented by formula [1], where Rrepresents a hydrogen atom or a Cto Calkyl group, Ris a hydrogen atom, a halogen atom, a Cto Calkyl group or a Cto Calkoxy group, A represents a nitrogen atom or a methine group (CH), Y represents an oxygen atom, a methylene group (CH) or a methyleneoxy group (OCH), and a salt thereof.SELECTED DRAWING: None

Description

  The present invention relates to an effective pathogen control method using a treatment method other than spraying foliage of an agricultural and horticultural fungicide containing a 2-aminonicotinic acid ester derivative represented by the formula [I] as an active ingredient.

（式中、Ｒ¹は水素原子またはＣ₁〜Ｃ₄のアルキル基を表し、Ｒ²は水素原子、ハロゲン原子、Ｃ₁〜Ｃ₄のアルキル基またはＣ₁〜Ｃ₄のアルコキシ基を表し、Ａは窒素原子またはメチン基（ＣＨ）を表し、Ｙは酸素原子、メチレン基（ＣＨ₂）またはメチレンオキシ基（ＯＣＨ₂）を表す。）で示される２−アミノニコチン酸エステル誘導体は植物病害防除剤の有効成分として有用であることが公知である（特許文献１および特許文献２参照）が、実施例には茎葉処理以外で病原体を防除する方法に関する記載はない。 Formula [I]

Wherein R ¹ represents a hydrogen atom or a C ₁ -C ₄ alkyl group, R ² represents a hydrogen atom, a halogen atom, a C ₁ -C ₄ alkyl group or a C ₁ -C ₄ alkoxy group, A represents a nitrogen atom or a methine group (CH), and Y represents an oxygen atom, a methylene group (CH ₂ ) or a methyleneoxy group (OCH ₂ ).) A 2-aminonicotinic acid ester derivative represented by Although it is known that it is useful as an active ingredient of an agent (see Patent Document 1 and Patent Document 2), there is no description in the Examples regarding a method for controlling pathogens other than foliage treatment.

WO2014 / 006945 Publication Japanese Patent Laying-Open No. 2015-30893

  In recent years, abnormal plant diseases have frequently occurred due to climate change caused by global warming. For example, soil diseases such as fusarium diseases and verticillium diseases are mainly controlled with soil fumigants. However, because the work to be processed is heavy labor and the amount of treatment chemicals is high, Since the burden on the environment is large, it is required to control these diseases by a lower dose and simpler soil treatment and seed treatment. Moreover, in institutional cultivation, airborne infectious diseases such as powdery mildew and gray mold disease develop in a very short period of time, so it is difficult to completely control with foliage spray alone, and crop damage continues. Yes. Therefore, in order to reduce the density of infectious sources in the entire facility, including not only the target crops but also infectious materials and weeds in the facility, several smoke treatment agents are marketed. However, since the number of products is small, and the active ingredient of these products has emerged resistant bacteria, a smoke agent having a new mechanism of action is eagerly desired.

  This invention makes it a subject to provide the method of controlling a pathogen labor-saving effectively by processing Formula [I] with application methods other than a foliar spray.

In order to solve the above problems, the present inventors have intensively studied treatment methods other than the foliage spraying of the 2-aminonicotinic acid ester derivative represented by the formula [I]. The horticultural fungicide is treated with soil irrigation, soil mixing (all layer mixing, row application, side line application, planting hole processing, plant root processing, floor soil mixing), seedling box processing, seed processing and soot processing, The present invention was completed by discovering that pathogens can be controlled labor-saving and effectively.
Formula [I]

Wherein R ¹ represents a hydrogen atom or a C ₁ -C ₄ alkyl group, R ² represents a hydrogen atom, a halogen atom, a C ₁ -C ₄ alkyl group or a C ₁ -C ₄ alkoxy group, A represents a nitrogen atom or a methine group (CH), and Y represents an oxygen atom, a methylene group (CH ₂ ) or a methyleneoxy group (OCH ₂ ).

In the following, the present invention will be described in detail.
The 2-aminonicotinic acid ester derivative used in the present invention is a compound represented by the above formula [I], and preferred specific examples are shown in Table 1. The compound numbers in Table 1 are referenced in the following description.

  The agricultural and horticultural fungicide provided by the present invention can be used for the prevention and extermination of harmful pests in scenes such as agriculture, indoors, forests, livestock, and sanitation. Specific use scenes, target pests, and usage methods are shown below, but the contents of the present invention are not limited to these.

  The agricultural and horticultural fungicide of the present invention is an agricultural product such as food crops (rice, barley, wheat, rye, oats and other wheat, potatoes, sweet potatoes, taro, potatoes such as yams, soybeans, red beans, broad beans. Beans such as peas, green beans, peanuts, corn, persimmons, buckwheat, etc., vegetables (cabbage, Chinese cabbage, radish, persimmon, broccoli, cauliflower, komatsuna, etc.), pumpkin, cucumber, watermelon, makuwa Cucurbitaceae crops such as cucumbers, melons, zucchini, yugao and garlic, eggplants such as eggplants, tomatoes, peppers, red peppers, shiitake and other mushrooms such as mushrooms, mushrooms such as porridges, red crustacean crops such as spinach and ducks, carrots , Aceraceae crops such as mitsuba, parsley, celery, udon, asteraceae crops such as lettuce, burdock, garlic, onion, leek, leek, raccoon , Asparagus, shiso, lotus root, etc.), mushrooms (shiitake, mushrooms, etc.), fruit trees / fruits (citrus, apple, pear, peach, plum, cherry peach, Yi, apricot, persimmon, persimmon, persimmon, no flower fruit, Akibi) , Blueberry, raspberry, pineapple, mango, kiwi fruit, banana, strawberry, olive, walnut, chestnut, almond, etc.), perfume and other ornamental crops (lavender, rosemary, thyme, sage, pepper, ginger, etc.), special crops (Tobacco, tea, sugar beet, sugar cane, igusa, sesame, konjac, hop, cotton, hemp, olive, rubber, coffee, rapeseed, sunflower, mulberry, etc.), crops for pasture and feed (timothy, clover, alfalfa, etc.) Grass, corn, sorghum, grasses such as orchard grass), turf (Korean turf, bentgrass, etc.), forest Pine, spruce, pine, hiba, cedar, camellia) and ornamental plants (kiku, rose, carnation, lily, eustoma, perennial haze, stachys, orchid, herb, cherry, Used in scenes such as garden trees such as Aoki).

  The pests targeted by the agricultural and horticultural fungicides of the present invention include fungi such as Mycota, Myxomycota, Bacteriomycota, Actinomycota, and the like. Yes, they can be used to control the diseases they cause.

  Specific examples thereof include, for example, rice blast (Piculararia oryzae), sesame leaf blight (Cochliobolus miyabeanus), blight (Rhizoctonia solani), brown rot (Panteoanaanatis), idiom eri Bacterial disease (Pythium graminicum), Brown stripe disease (Acidovorax avene subsp. Avenae), Leaf-sheath browning disease (Pseudomonas fuscovaginae), Bacterial leaf disease (Xanthomonas oryzae erd. Powdery mildew (Erysiphe graminis), red mold (Gibberella zeae), red rust (Puccinia striformis, P. graminis, P. recondita, P. hordei), snow rot (Typhula sp., Microtelliella nivalis), naked ears, black ear disease. Disease (Tilletia caries), eye spot disease (Pseudocercosporella herpotrichoides), cloud disease (Rhynchosporium secalis), leaf blight (Septoria tritice), leaf blight (Leptosophore) . Porium zonatum Ikata), black clause disease (Pseudomonas syringae pv japonica) and the like;

Citrus black spot (Diaporthe citri), scab (Elsinoe fawceti), fruit rot (Penicillium digititatum, P. italicum), brown rot (Phytophthora citrophthra, ti, p. I. Moniliaia disease of apple (Diplocarpon mali), rot disease (Valsa mali), powdery mildew (Podosphaera leucotricha), black spot disease (Alternaria maria point black disease) Mycopherella pom ), Anthracnose (Colletotrichum acutatum), Glomerella singulata, ring-root disease (Botryosphaeria berengeriana), red streak (Gymnosporadium yamadae), scotch disease (Zygophasimusia) Venturia nashicola, V. pirina), powdery mildew (Phyllactinia mali), black spot disease (Alternaria kikuchiana), red star disease (Gymnosporium harieranum), ash instar disease Ngeriana) et al; Monilinia fruticola, Anthracnose (Glomerella cinulata), larvae nuclear disease (Monilinia kusanoi), etc .; Phomopsis spoilage disease (Phomopsis sp.), Perforated bacterial disease (Xanthomonas campestris pv. Pruni), etc .; Grape scab (Elsinoe ampelina), late rot (Colletotrichum acutelum, ulmar) Rust (Phakopsora a mpelopsidis), black lot disease (Guignardia bidwellii), downy mildew (Plasmopara viticola), black scab (Cladosporium viticolum), root rot fungus disease (Agrobacterium vitis), etc .; This disease (Phyllactinia kakicola), deciduous leaf disease (Cercospora kaki, Mycoshaellaella nawae), kiwifruit spot disease (Phomopsis sp.) ), Anthracnose (Colletotrichum gloeosporioides, Colletotrichum acutatum), white spotted rot (Rosellinia necatrix), brown leaf blight (Pyllostica erobotica) , Powdery mildew (Sphaerotheca filiginea, Oidiopsis taurica), vine blight (Didymella bryoniae), vine split disease (Fusarium oxysporum), downy mildew (Pseudoperosporusporiasporusporiasporiasporia, sp.),

Seedling blight (Pythium sp., Rhizoctonia solani), etc .; Cucumber spotted bacterial disease (Pseudomonas syringae pv. Lochrymons urmonis urmonitis, brown leaf disease (Pseudomonas viridiflam) Brown spot bacterial disease (Xanthomonas campestris pv. Cucurbitae), hairy root disease (Agrobacterium rhizogens), scab (Streptomyces sp.), Etc .; Bacterial wilt (Ralstonia solanac) arum), etc .; tomato ring-rot (Alternaria solani), leaf mold (Cladosporium fulvum), plague (Phytophthora cerium spider cerium), mildew (Pseudocercospora fulgena), powdery mildew Michiganense, stem rot (Pseudomonas corrugata), soft rot (Pectobacterium carotovorum subsp. Carotovorum), etc .; brown symptom (Phomopsis vexans), cereals Moldy mildew (Mycovellosiella natrassii), black blight (Corynespora melangenae), brown rot (Paracercospora egenula), brown rot (Phytophthora capsici), half-wilt disease (Verthili) Peronospora parasitica, black spot disease (Alternaria japonica), white spot disease (Cercosporella brassicae) soft rot (Pectobacterium carotovorum sublium), yellow rot (Ve. yringae pv. marginalis), black rot (Xanthomonas campestris pv campestris) and the like;. lettuce downy mildew (Bremia lactucae) bottom rot (Rhizoctonia solani), Rot (Pseudomonas cichorii, Pseudomonas viridiflava), spot Bacterial (Xanthomonas campestris pv. vitians), downy mildew (Peronospora destructor), black spot disease (Alternaria porri), rust disease (Puccinia allii), white silk disease (Sclerotium rolfsii) and the like;

Soybean purpura (Cercospora kikuchii), anthracnose (Colletotrichum truncatum, Colletotrichum trifolii, Glomerella glycines, Gloeosporium sp.), Downy mildew (Peronospora manshurica), stems late blight (Phytophthora sojae), sphaceloma disease (Elsinoe glycines), Black spot disease (Diaporthe phaseolum var. Sojae), spot bacterial disease (Pseudomonas savasanoi pv. Glycinea), leaf burning disease (Xanthomonas campestris pv. Glycines charcoal) chum lindemthianum), bacterial wilt (Pseudomonas savastanoi pv. phaseolicola), leaf blight (Xanthomonas campestris pv. phaseoli), leaf rot (Rhizoctonia spore) Cercospora arachidicola), etc .; Peony powdery mildew (Erysiphe pisi), etc .; potato summer blight (Alternaria solanis), plague (Phytophorota infestans), leaf rot fungus (Rhizocactor rot) . Sp carotovorum) and the like; strawberry powdery mildew (Sphaerotheca humuli), anthracnose (Colletotrichum gloeosporioides, Colletotrichum actatum, Glomerella cingulata), late blight (Phytophthora nicotianae), Wamadarabyo (Dendrophoma obscurans), buds bacterial grain rot (Pseudomonas marginalis pv. marginalis) and the like;

Brown brown streak of tea (Pseudocercospora thee), anthracnose (Discule theaesis), anesthetosis (Estabodissis disease, Exobasidosis disease, Estrobasidium disease) leucospila), red burn (Pseudomonas syringae pv. theae), scab (Xanthomonas campestris pv. theicola), etc .; tobacco red streak (Alternaria longipes) trichum tabacum), downy mildew (Peronospora tabacuma), plague (Phytophthora nicotianae), blight (Ralstonia solacerarum), causal disease (Pectobacterium carotovorum scab). (Rhizoctonia solani, Thanatephorus cucumeris), seedling blight (Aphanomyces cochliodes), etc .; rose scab (Diplocarpon rosae), powdery mildew (Sphaerotheca palp) nthemi-indici), white rust (Puccinia horiana), root cancer tumor (Agrobacterium tumefaciens), etc .; gray mold (Bottrytis cinerea) of various crops such as eggplant, cucumber and lettuce ;

Grasses of snow mold disease (Pythium iwayamai, Tyohula incarnate, Fusarium nivale, Sclerotinia borealis), powdery mildew (Erysiphe graminis), Fari ring disease (Lycoperdon perlatum, Lepista subnudo, Marasmius oreades), the pseudo-leaf rot (Ceratobasidium spp. ), Withering disease (Gaemanomyces graminis), curvularia leaf blight (Curvularia genicula), leaf rot (Rhizoctonia solani), Pythium periplocumum (Pythium peritropumum) ccinia spp.), Dollar spot disease (Sclerotinia homoeocarpa) and the like; Bentgrass red blight (Pythium aphanidermatum), anthracnose (Colletotrichum sp.),

Acacia shark skin blight (Botryosphaeria sp.), Anthrax (Glomerella singulata), hydrangea ring rot (Phoma exigua), spot disease (Phylosticta hydrangeaaeol, sarcosis) (Rhizoctonia solani), powdery mildew (Oidium sp.), Anthracnose (Glomerella singulata), ring rot (Cercospora hydrangea), Ginkgo biloba urticum red rickets (Gonatobotryum apiculosis) Red star disease (Gymnosporium yamadae), white crest Disease (Rosellinia necatrix), maple leaf blight (Rhytisma acerinum), ring-leaf blight (Cristulariella moricola), blight (Diaporthe sp.), Subtilis spot disease (Cercosportospor disease) gloeosporioids, red rot disease (Erythricium salmonicor), powdery mildew (Uncinula sp., Sawadaea sp., Oidium sp.), white spot disease of scabies (Pomatospora alborumuloidum) Erysiphe gracilis), Karamatsu Armillaria mellea, rot heart disease (Phaeolus schweinitzii), citrus brown spot disease (Septoria chinensis), head blight (Diaportis melanocarp) Fungus disease (Passaloora okinawaensis), spot disease (Phaeosphaerella gardeniae), zelkova brown leaf disease (Pseudocercospora zelkovae), ivy disease (Armillaria melea) ticta concentrica), Sakura such temple petitioner disease (Nectria galligena), crown gall temple petitioner disease (Agrobacterium tumefaciens),

Powdery mildew (Podosphaera longiseta, Podosphaera triadactyla), Tenchuria disease (Taphlina wiesneri), Bacterial sclerotia (Monilinia kasanoi), Bamboo tract disease (Armilaria mellitus disease) (Sphaceroma punicae), powdery mildew (Uncinuliella australiana), brown spot (Pseudocercospora lythracarum), leaf blight (Cristularella moricola) Disease (Bagcheea) lbo-maculans), leaf blight (Taphrina kusanoi), scabbard anthracnose (Colletotrichum gloeosporioides), leaf spot (Pseudocercospora handelii), white rot (Resellinrium leaf) sp.), red blight (Cercospora sequoiae), microphage nuclear disease (Macrophopha phaseolina), red leaf blight (Ascochyta sp.), azalea powdery mildew (Microsphaera izuensis), brown spot disease azaleae), white crest feather disease (Rosellinia necatrix), seedling blight (Rhizocto) ia solani), Hamadarabyo (Pseudocercospora handelii), leaf spot (Phyllosticta maxima), flower Kusakin nuclear disease (Ovulinia azaleae), witch's broom (Exobasidium pentasporium), root rot plague of camellia (Phytophthora cinnamomi),

Anthracnose (Glomerella singulata), false symptom (Armillariella mellea), rose powdery mildew (Sphaerotheca pannosa, Oidium spell), downy mildew (Peronospora sco) Phytophthora megasperma, black scab (Marssonina rosae), Diplopcarpon rosae, rot (Cryptosporella umbrina), white rot (Rosellinia necatrix), pelt (Pestaliopsis sp.), Fujinokushi disease (Erwinia herbicola pv. Milletiae), Poinsettia root rot (Rythium sp.), Phytophthora cactorum, Powdery disease .), Anthrax (Gloeosporium sp.), Brown spot (Pseudocercospora variicolor), mycorrhizal disease (Sclerotinia sclerotiorum), blight disease (Botrytis paeoniae), white crest rot (Resella scab) Oidium euonymi-japonici), brown spot (Pse) docercospora destructiva), pine of kelp disease (Cronartium quercuum), seedling blight (Rhizoctonia solani, Fusarium sp., Pythium sp ,,), leaf blight (Pseudocercospora pini-densiflorae),

Dangerous backspot disease (Coccoidea querricola), Mizuki powdery mildew (Microsphaera pulchra), Spot disease (Pseudocercospora cornicola), Goats marzonina corn leaf disease (Marssonina or horny horn) epicoccoides), Pseudocercospora spiraeicola, powdery mildew (Sphaerotheca spiraea), lilac powdery mildew (Microsphaera siperia), ox sporum f. sp. batatas, carnation powdery mildew (Oidium dianthi), gerbera powdery mildew (Sphaerotheca fuliginea), anthracnose (Colletotrichum sp.), sclerotiaum disease (Sclerotirium wilt) Oxysporum), powdery mildew (Erysiphe cichoacearum), sclerotia (Sclerotinia sclerotiorum), half body wilt (Verticillium dahliae), ivy of rice (Fusarium soluli), goldfish Oidium s bgenus Reticuloidium, Sclerotinia sclerotiorum, Cosmos anthracnose (Colletotrichum acutatum), Glooesporium sp. sp.), Fusarium monoliform,

Sclerotinia sclerotiorum, sweet pea powdery mildew (Oidium sp.), Wilt disease (Fusarium sp.), Half body wilt disease (Verticillium dahliae oligostrochum), anthrax Glomerella singulata), powdery mildew (Oidium sp.), Stock wilt disease (Fusarium oxysporum Schlechtendahl: Fries f. Sp. Conglutinosto), sclerotia sclerotia charcoal (Sclerotinorch) oletotrichum higginsianum, Fusarium avenaceum, half body wilt disease (Verticillium dahliae), anthracnose of eustoma (Colletotrichum acutatum), stem rot (Fusarium disease) Sclerotinia scleriorum, Sunflower powdery mildew (Sphaerotheca fusca, Erysiphea cicholacearum), Sclerotinia sclerotiorium, Speritia helidi erotheca fulignea, Oidium sp.), sclerotia sclerotia, marigold half body wilt (Verticillium dahliae)
However, it is not limited to these.

  More preferable diseases to which the present invention is applied are various powdery mildew, gray mold, mycorrhizal disease, anthrax, vine blight, black star disease, ring rot, rice blast, fusarium disease, verticillium Diseases are listed.

In addition, the agricultural and horticultural fungicide of the present invention is resistant to existing agents such as benzimidazole agents, dicarboximide agents, anilinopyrimidine agents, strobilurin agents, SDHI agents, fluazinam agents and the like. Excellent bactericidal activity against resistant bacteria having
The agricultural and horticultural fungicide of the present invention may be present as a compound having an insecticidal activity, acaricidal activity or nematicidal activity in addition to the fungicidal activity, and also as a mixture with other active compounds. In order to control diseases and / or weeds that occur at the same time of use, it can be used in combination with a compound having fungicidal activity, herbicidal activity, or plant growth regulating activity, thereby reducing the control effort and reducing the dosage. Synergistic effects can be expected. Moreover, more effective control effects, such as a synergistic effect, can be expected by using a mixture with a repellent or a synergist.

  The agricultural and horticultural fungicides of the present invention can be used as they are or in general as a pesticide, for example, wettable powder, granular wettable powder, dry flowable powder, aqueous solvent, emulsion, oil suspension preparation, liquid preparation, oil preparation, aqueous suspension. It can be used in dosage forms such as flowable agents such as suspending agents and aqueous emulsions, capsules, powders, granules, fine granules, baits, tablets, sprays, aerosols and aerosols. These preparations contain 0.1 to 99.9%, preferably 0.2 to 80%, of the active ingredient by mass ratio. In order to obtain these dosage forms, various agricultural chemical adjuvants conventionally used in the technical field of agricultural and horticultural medicine can be appropriately used. Such agrochemical adjuvants can be used for the purpose of, for example, improving the effects, stabilizing, and improving dispersibility of agricultural and horticultural chemicals. Examples of the agricultural chemical adjuvant include a carrier (diluent), a spreading agent, an emulsifier, a wetting agent, a dispersing agent, a disintegrating agent, and the like. Liquid carriers include water, aromatic hydrocarbons such as toluene and xylene, alcohols such as methanol, butanol and glycol, ketones such as acetone, amides such as dimethylformamide, sulfoxides such as dimethyl sulfoxide, methyl Mention may be made of naphthalene, cyclohexane, animal and vegetable oils, fatty acids and the like. As the solid carrier, clay, kaolin, talc, diatomaceous earth, silica, calcium carbonate, montmorillonite, bentonite, feldspar, quartz, alumina, sawdust, nitrocellulose, starch, gum arabic and the like can be used. As the emulsifier and the dispersant, a normal surfactant can be used. For example, anionic surfactants such as higher alcohol sodium sulfate, stearyltrimethylammonium chloride, polyoxyethylene alkylphenyl ether, lauryl betaine, etc. Cationic surfactants, nonionic surfactants, amphoteric surfactants, and the like can be used.

  Further, spreading agents; wetting agents such as dialkyl sulfosuccinate; fixing agents such as carboxymethyl cellulose and polyvinyl alcohol; disintegrating agents such as sodium lignin sulfonate and sodium lauryl sulfate can be used. In order to control pests such as fungi, in addition to spraying on the foliage of plants in areas where damage by these pests is or is likely to occur, soil All layers mixed, cropping application, side strip application, floor soil mixing, cell seedling treatment, planting hole treatment, plant root treatment, top dress, rice box treatment, water surface treatment, etc. Can also be used. It can also be used by soaking seeds in chemicals, seed dressing, seed treatment such as calper treatment, application to nutrient solution in nutrient solution (hydroponic) cultivation, smoke, or trunk injection. When used, it varies depending on the type and amount of pests and the target crop / tree type, cultivation form / growth state, but generally 0.01 to 1000 g, preferably 0.1 to 100 g of active ingredient per 10 ares. Apply. In order to treat this, dilute with water in wettable powder, granule wettable powder, dry flowable powder, aqueous solvent, emulsion, liquid agent, flowable agent such as aqueous suspension and aqueous emulsion, capsules, etc. Generally, it may be sprayed on crops and the like at a rate of 10 to 1000 liters per 10 ares, although it varies depending on the type of plant and cultivation form / growth state. Moreover, what is necessary is just to process to a crop etc. in the state of the formulation in a powder agent, a spray agent, or an aerosol agent.

  When the target pest primarily injures plants in the soil or when the drug is absorbed from the roots to control the target pest, for example, the preparation is not diluted or diluted in water. Method of applying to plant stock or seedling nursery, etc., spraying granules to plant stock or nursery for seedling, powder, wettable powder, granular water before sowing or transplanting A method of spraying Japanese sweets, granules, etc. and mixing with the whole soil, before sowing or planting plants, planting holes, crops etc., powder, wettable powder, granule wettable powder, granules, fine granules, The method of spraying etc. is mentioned. For wettable powders, granular wettable powders, aqueous solvents, emulsions, liquids, flowables such as aqueous suspensions and aqueous emulsions, capsules, etc., dilute with water, generally 5 to 500 liters per 10 ares In order to be even over the entire area to be treated, spray it on the surface of the soil or irrigate it in the soil, in the form of its formulation, powder, granules, fine granules or bait, so that it is even throughout the area to be treated. What is necessary is just to spread on the soil surface. Spraying or irrigation may be around the seeds, crops or trees that you want to protect from harm.

  Further, the active ingredient can be mechanically dispersed by tilling during or after spraying. When processing to the soil, it varies depending on the type and amount of pests and the target crop / tree type, cultivation form / growth state or soil type, but generally 0.01 to 1000 g of active ingredient per 10 ares, Preferably 0.1-500 g is applied. As a method for applying paddy rice to a seedling box, the dosage form may differ depending on the time of application such as application at seeding, greening period, application at transplanting, etc., for example, powder, granule wettable powder, granule, fine powder Granules etc. can be used as they are, and wettable powders, granular wettable powders, aqueous solvents, emulsions, liquids, flowable agents such as aqueous suspensions and aqueous emulsions, capsules, etc. can be used after diluted with water. . It can also be applied by mixing with cultivated soil, and can be mixed with cultivated soil and powder or granules, for example, mixed with floor soil, mixed with cover soil, mixed into the entire cultivated soil, and the like. Alternatively, the culture medium and various preparations may be applied alternately in layers. As a method of application to paddy fields, solid preparations such as jumbo agents, packs, granules, granule wettable powders, and liquid preparations such as flowables and emulsions are usually sprayed on flooded paddy fields. In addition, at the time of rice planting, an appropriate preparation can be sprayed and injected into the soil as it is or mixed with fertilizer. In addition, by using chemicals such as wettable powder, emulsion, flowable, etc. as the source of water flowing into the paddy field such as a water mouth or an irrigation device, it can be applied labor-saving along with the supply of water.

  Seed treatment methods include, for example, a method in which a liquid or solid preparation is diluted or undiluted and the seed is immersed in a liquid state to attach and permeate the drug, a solid preparation or a liquid preparation is mixed with the seed, Examples thereof include a method of dressing and adhering to the surface of the seed, a method of coating the seed by mixing with an adhesive carrier such as resin and polymer, and a method of spraying around the seed simultaneously with planting. The “seed” for performing the seed treatment means a plant body at an early stage of cultivation used for plant propagation. For example, in addition to seeds, nutrition for bulbs, tubers, seed buds, buds, baskets, bulbs or cuttings cultivation Mention may be made of plants for breeding. In addition, the “soil” or “cultivation carrier” of a plant when applied refers to a support for cultivating crops, particularly a support for growing roots, and the material is not particularly limited. Any material can be used as long as it can grow, so-called soil, seedling mat, water, etc. Specific materials include, for example, sand, pumice, vermiculite, diatomaceous earth, agar, gel material, polymer material, rock Examples include wool, glass wool, wood chips, and bark. When used, the active ingredient is 0.001 to 50 g, preferably 0.01 to 10 g per kilogram of seed.

  As the treatment of the cultivated plant to be transplanted and the treatment of the seedling raising period, in addition to the direct treatment to the seed, the irrigation treatment of the liquefied drug or the granule spraying treatment to the seedling nursery is preferred. In addition, it is also preferable to treat the granule in the planting hole at the time of planting or to mix it with the cultivation carrier in the vicinity of the transplantation site.

Hereinafter, the present invention will be described in more detail with reference to formulation examples and activity tests.
[Formulation example]
The formulation containing the agricultural and horticultural fungicide of the present invention will be specifically described below by giving some preparation examples. Of course, the agricultural and horticultural fungicide of the present invention, auxiliary components and the amount of addition thereof are as follows. It is not limited to formulation examples only. In the formulation examples, “part” means all parts by mass.

Formulation Example 1 Emulsion Agricultural and horticultural fungicide of the present invention (10 parts), xylene (60 parts), N-methyl-2-pyrrolidone (20 parts), Solpol 3005X (nonionic surfactant and anionic surfactant) And Toho Chemical Co., Ltd., trade name) (10 parts) were uniformly mixed and dissolved to obtain an emulsion.

Formulation Example 2 Wetting Agent-1
Agricultural and horticultural fungicide of the present invention (20 parts), Nipseal NS-K (white carbon, Tosoh Silica Co., Ltd., trade name) (10 parts), Kaolin clay (Kaolinite, Takehara Chemical Co., Ltd., trade name) (60 parts), Sun extract P-252 (sodium lignin sulfonate, Nippon Paper Chemical Co., Ltd., trade name) (5 parts) and Lunox P-65L (alkyl allyl sulfonate, Toho Chemical Co., Ltd., trade name) (5 parts) was uniformly mixed and ground with an air mill to obtain a wettable powder.

Formulation Example 3 Wetting Agent-2
Agricultural and horticultural fungicide of the present invention (20 parts), nip seal NS-K (white carbon, Tosoh Silica Co., Ltd., trade name) (20 parts), kaolin clay (50 parts), LUNOX 1000C (naphthalene sulfonate condensation) Product, Toho Chemical Co., Ltd., trade name) (5 parts) and Solpol 5276 (nonionic surfactant, Toho Chemical Industry Co., Ltd., trade name) (5 parts) were uniformly mixed and pulverized in an air mill, A wettable powder was obtained.

Production Example 4 Granule wettable powder Agricultural and horticultural fungicide of the present invention (20 parts), demole N (naphthalene sulfonate formalin condensate, Kao Corporation, trade name) (5 parts), air roll CT-1L (dioctylsulfosucci) Acid salt, Toho Chemical Industry Co., Ltd., trade name) (1 part), Cellogen 701A (Carboxymethylcellulose, Daiichi Kogyo Seiyaku Co., Ltd.) (1 part) and Kaolin clay (Kaolinite, Takehara Chemical Co., Ltd., trade name) (73 parts) was uniformly mixed and ground in an air mill. Water was added to this mixture and kneaded well, followed by extrusion granulation and dry granulation to obtain a granulated wettable powder.

Formulation Example 5 Aqueous solvent-1
Agricultural and horticultural fungicide of the present invention (20 parts), Lunox P-65L (alkyl allyl sulfonate, Toho Chemical Co., Ltd., trade name) (3 parts), water-soluble carrier potassium chloride (77 parts) uniformly The mixture was pulverized to obtain an aqueous solvent.

Formulation Example 6 Aqueous Solvent-2
Agricultural and horticultural fungicide of the present invention (50 parts), Newkalgen BX-C (alkyl naphthalenesulfonic acid Na, made by Takemoto Yushi, trade name) (5 parts), nip seal NS-K (white carbon, Tosoh Silica Co., Ltd.) , (Trade name) (2 parts) and water-soluble carrier potassium chloride (43 parts) were uniformly mixed and pulverized to obtain an aqueous solvent.

Formulation Example 7 Flowable Agent-1
Propylene glycol (5 parts), Solpol 7933 (anionic surfactant, Toho Chemical Industry Co., Ltd., trade name) (5 parts), water (50 parts) mixed in advance with the agricultural and horticultural fungicide of the present invention (20 parts) is dispersed to form a slurry mixture, and this slurry mixture is then wet pulverized. Then, xanthan gum (Kelzan, Sanki Co., Ltd., trade name) (0.2 parts) is added in advance to water (19.8). Part) was mixed and dispersed well to obtain a flowable agent.

Formulation Example 8 Flowable Agent-2
Agricultural and horticultural fungicide of the present invention (20 parts), New Calgen FS-26 (mixture of dioctyl sulfosuccinate and polyoxyethylene tristyryl phenyl ether, Takemoto Yushi Co., Ltd., trade name) (5 parts), propylene glycol ( 8 parts) and water (50 parts) were mixed in advance, and the slurry-like mixture was wet pulverized. Next, xanthan gum (0.2 parts) was thoroughly mixed and dispersed in water (16.8 parts) to prepare a gel-like material, which was sufficiently mixed with the pulverized slurry to obtain a flowable agent.

Formulation Example 9 EW-1
Agricultural and horticultural fungicide of the present invention (20 parts) and Solpol CA-42 (nonionic active agent, Toho Chemical Co., Ltd., trade name) (15 parts) and preservative Proxel GX-L (0.1 part) After mixing and homogenizing, water (59.6 parts) was gradually added with stirring to obtain a dispersion. Anti-foaming agent anti-home E-20 (emulsion type modified silicone, Kao Corporation, trade name) (0.1 part) was added to the obtained dispersion, and xanthan gum dispersed in propylene glycol (5.0 parts) (0.2 parts) was added to obtain an emulsion formulation (phase inversion emulsification method).

Formulation Example 10 EW-2
The agricultural and horticultural fungicide of the present invention (10 parts) was dissolved in xylene (10 parts) and mixed with the surfactant Rheidol 430V (polyoxyethylene sorbite tetraoleate, Kao Corporation, trade name) (24 parts). . Liquid obtained in water (50.6 parts), antifoaming agent anti-home E-20 (emulsion type modified silicone, Kao Corporation, trade name) (0.1 part), preservative Proxel GX-L (0 .1 part) was added, dispersed using a homogenizer, and xanthan gum (0.2 part) dispersed in propylene glycol (5.0 parts) was added to obtain an emulsion formulation (mechanical emulsification method).

Formulation Example 11 ME Agent-1
The agricultural and horticultural fungicide of the present invention (0.01 part) and Solpol CA-42 (nonionic activator, Toho Chemical Co., Ltd., trade name) (0.1 part) were mixed and homogenized, and then stirred. Gradually, water (99.79 parts) was added. Preservative Proxel GX-L (0.1 part) was added to the dispersion to obtain a microemulsion.

Formulation Example 12 ME Agent-2
After mixing and homogenizing the agricultural and horticultural fungicide of the present invention (10 parts) and New Calgen D-945 (polyoxyethylene (20 mol) sorbitan monooleate, Takemoto Yushi Co., Ltd., trade name) (20 parts) While stirring, water (69.9 parts) was gradually added. Preservative Proxel GX-L (0.1 part) was added to the dispersion to obtain a microemulsion.
Formulation Example 13 ME Agent-3

  The agricultural and horticultural fungicide of the present invention (0.01 part) was mixed with solvent Solvesso 200 (0.08 part), Newkalgen ST-30 (polyoxyethylene arylphenyl ether formaldehyde condensate, polyoxyalkylene arylphenyl ether, and alkylbenzene sulfone). After dissolving in a mixture of acid salt and xylene, Takemoto Yushi Co., Ltd., trade name) (0.12 parts), mixing with surfactant and homogenizing, gradually stirring water (99.69 parts) added. Preservative Proxel GX-L (0.1 part) was added to the dispersion to obtain a microemulsion.

Formulation Example 14 Granule-1
Agricultural and horticultural fungicide of the present invention (15 parts), Sun extract P-252 (sodium lignin sulfonate, Nippon Paper Industries Co., Ltd., trade name) (5 parts), Lunox P-65L (alkyl allyl sulfonate, Toho Chemical) Kogyo Co., Ltd. (trade name) (2 parts), Sado bentonite (Kanto bentonite industry Co., Ltd.) (20 parts) and kaolin clay (Kaolinite, Takehara Chemical Co., Ltd., trade name) (58 parts) in an air mill. Mixed and crushed. Water was added to this mixture and kneaded well, followed by extrusion granulation and dry sizing to obtain granules.

Formulation Example 15 Granule-2
After putting siliceous sand (90 parts) into a rolling granulator and containing water, the agricultural and horticultural fungicide of the present invention (5 parts), Sun extract P-252 (sodium lignin sulfonate), Nippon Paper Industries Co., Ltd., trade name) (4 parts), Gohsenol GL05 (polyvinyl alcohol, Nippon Synthetic Chemical Industry Co., Ltd., trade name) (0.5 parts) and NipSeal NS-K (white carbon, Tosoh Silica Corporation, Product name) (0.5 parts) was added, coated, and then dried to obtain granules.

Formulation Example 16 Granule-3
After putting Ishikawa Light (89 parts) into a rolling granulator and making it water-containing, the agricultural and horticultural fungicide of the present invention (5 parts) and sun extract P-252 (sodium lignin sulfonate) previously pulverized and mixed Nippon Paper Industries Co., Ltd., trade name) (3 parts), Aerol CT-1L (dioctylsulfosuccinate, Toho Chemical Co., Ltd., trade name) (0.5 part), Solpol 5276 (nonionic activator, Toho Chemical) Kogyo Co., Ltd., trade name) (2 parts) and Gohsenol GL05 (polyvinyl alcohol, Nippon Synthetic Chemical Industry Co., Ltd., trade name) (0.5 parts) were coated, dried, and granulated to obtain granules. It was.

Formulation Example 17 Fine Granule-1
The agricultural and horticultural fungicide of the present invention (2 parts) was diluted with a solvent and mixed with Ishikawa Light (Ishikawa Light Industry Co., Ltd., trade name) (98 parts) while spraying the diluted solution. The obtained granular composition was dried and sieved to obtain a fine granule.

Formulation Example 18 Fine granules-2
A powdery base material for subjecting the agricultural and horticultural fungicide (5 parts) of the present invention to air mill grinding or mechanochemical grinding as necessary and No. 6 silica sand (Ube Sand Industry Co., Ltd., trade name) (85 parts) as an extender. After uniformly mixing, the binder Toxanone GR-31A (an aqueous solution of polycarboxylic acid type anionic surfactant, Sanyo Chemical Industries, Ltd., trade name) (10 parts) diluted with a solvent was mixed while sprayed to obtain. After drying the granular composition, it was sieved to obtain a fine granule.

Formulation Example 19 Powder Agricultural and horticultural fungicide of the present invention (2 parts), nip seal NS-K (white carbon, Tosoh Silica Co., Ltd., trade name) (10 parts) and kaolin clay (Kaolinite, Takehara Chemical Co., Ltd.) , (Trade name) (13 parts) was uniformly mixed and ground in an air mill to obtain a premix. Kaolin clay (75 parts) was further added to the obtained premix, and the mixture was uniformly mixed and ground with an air mill to obtain a powder.

Formulation Example 20 DL powder The agricultural and horticultural fungicide of the present invention (5 parts), propylene glycol (0.5 parts) and DL clay (Showa KDE Co., Ltd., trade name) (94.5 parts) were mixed and ground uniformly. The powder was obtained.

Formulation Example 21 Seed coating powder Agricultural and horticultural fungicide of the present invention (10 parts), Sun extract P-252 (sodium lignin sulfonate, Nippon Paper Industries Co., Ltd., trade name) (6 parts), Gohsenol GL05 (polyvinyl alcohol, Japan) Synthetic Chemical Industry Co., Ltd., trade name) (1 part) and clay (Nippon Talc Co., Ltd. trade name) (83 parts) are mixed and pulverized and mixed with a pre-moistened seed, Air-dried to obtain coated seeds.

Formulation Example 22
The wet seeds are put in a sealed plastic bag, and the wettable powder obtained from Production Example 3 is weighed into the dried plastic bag so as to be 1 part with respect to the dry seed mass, and is sufficiently shaken to give a powdered medicine. Seeds were obtained.

Formulation Example 23 Oily Suspension Formulation Agricultural and horticultural fungicide of the present invention (20 parts), New Calgen C-120 (POE tristyryl phenyl ether, Takemoto Yushi Co., Ltd., trade name) (5 parts), Rheodor TW-O120V ( POE sorbitan monooleate, Kao Corporation, trade name) (10 parts), oleic acid methyl ester (Kanto Chemical Co., Reagents) (62 parts), Sven NZ (Organic bentonite, Hojun Co., Ltd., trade name) (3 Part) was sufficiently mixed and dispersed, and this slurry dispersion was wet-pulverized to obtain an oily suspension preparation.

[Plant disease control test example]
Test examples are shown below as examples, but the present invention is not limited to these treatment methods and plant diseases.

Test Example 1: Antibacterial activity test against Fusarium spp. The agricultural and horticultural fungicide of the present invention, which is an active ingredient, was dissolved in acetone and then diluted with water to prepare a chemical solution. The drug solution was added and mixed in the dissolved PDA medium, and then poured into a plastic petri dish having a diameter of 9 cm to prepare a drug-containing PDA plate medium having a predetermined concentration. In the central part of the prepared drug-containing PDA plate medium, a Fusarium oxysporum f. Sp lycopersici and spinach wilt fungus (Fusarium oxysporum f. Sp. Fusarium oxysporum f.sp spinaeae) flora was placed. For 10 days after placement, the sample was allowed to stand in a light place at a temperature of 20 ° C., and then the investigation was conducted. In the survey, the diameter (mm) of each flora was measured with a ruler, and the mycelial elongation inhibition rate (%) was calculated according to the following formula.
Mycelial elongation inhibition rate (%) = [1- (microflora diameter in treated section (mm) -4) / (microflora diameter in untreated section (mm) -4)] × 100

<Test Example 1 Antibacterial activity test against tomato wilt fungus and spinach wilt fungus>

  As can be seen from the above results, the agricultural and horticultural fungicide in the present invention has activity against tomato wilt fungus and spinach wilt fungus.

Test Example 2: Antibacterial activity test against Verticillium bacterium The agricultural and horticultural fungicide of the present invention, which is an active ingredient, was dissolved in acetone and then diluted with water to prepare a chemical solution. The drug solution was added and mixed in the dissolved PDA medium, and then poured into a plastic petri dish having a diameter of 9 cm to prepare a drug-containing PDA plate medium having a predetermined concentration. In the center of the prepared drug-containing PDA plate medium, a flora fragment of Verticillium dahlia that was pre-cultured in a light place at a temperature of 20 ° C. and was hollowed out with a cork borer with a diameter of 4 mm was placed. It was left still in a light place at a temperature of 20 ° C. for 14 days after placement and then investigated. In the survey, the diameter (mm) of each flora was measured with a ruler, and the mycelial elongation inhibition rate (%) was calculated according to the following formula.

<Test Example 2 Antibacterial Activity Test against Eggplant Half Body Dwarf Fungus>

  As can be seen from the above results, the agricultural and horticultural fungicide in the present invention is active against eggplant half-wilt disease bacteria.

Test Example 3: Test for spinach wilt A contaminated soil was prepared by mixing spinach wilt fungus cultivated in a bran medium at a temperature of 25 ° C. for 1 month in the dark with non-contaminated sterilized soil at 5:95. 160 g of the prepared contaminated soil was placed in a styrene cup having a diameter of 85 mm and a height of 60 mm. Ten spinach (variety: krone) seeds were sown per cup there. Immediately after sowing, a chemical solution diluted to a predetermined concentration of the flowable agent described in Preparation Example 8 was sprayed on the surface of 20 ml of soil per cup using a spray gun. The powder treatment was carried out by subjecting the powder obtained in Formulation Example 19 to soil mixing immediately before sowing, and the foliage spraying treatment was performed by using a spray gun to dilute the medicinal solution diluted to a predetermined concentration of the flowable preparation described in Formulation Example 8. 7 days after sowing, 20 ml per 1 cup was sprayed. The ward system was implemented at 3 cups / ward. After the treatment, it was kept in a hot water bath having a temperature of 30 ° C. in a glass greenhouse. 28 days after the retention, the disease severity was investigated according to the following criteria, and the control value was calculated based on the following formula from the obtained survey results.

  Disease index 0: no disease, disease index 1: slight wilt in cotyledons, disease index 2: wilt in true leaves, disease index 3: wilt of entire strain, disease index 4: death

Disease severity = 100 × Σ (number of strains by disease severity × morbidity index) / (4 × total number of strains surveyed)
Control value = 100 × (1—degree of disease in treated area / degree of disease in untreated area)

<Test Example 3 Effect test on spinach wilt>

  As can be seen from the above results, the present invention is more effective against spinach wilt than the foliage treatment and the comparative drug benomyl wettable powder treatment by irrigation treatment and soil mixing treatment.

Test Example 4: Test for eggplant half-wilt disease Contaminated soil was prepared by mixing eggplant half-wilt disease fungus cultured in a bran medium at a temperature of 25 ° C. for one month in the dark with uncontaminated sterilized soil at 5:95. 160 g of the prepared contaminated soil was placed in a styrene cup having a diameter of 85 mm and a height of 60 mm. One 2.5-leaf seedling (variety: Senryo No. 2) made there was planted once per cup. Immediately after planting, 50 ml of soil irrigated or foliage sprayed per cup of the chemical solution diluted to a predetermined concentration of the flowable agent described in Formulation Example 8. The powder treatment was carried out by subjecting the powder obtained from Formulation 19 to soil mixing immediately before planting. The ward system was implemented at 10 cups / ward. After chemical treatment, the strain was held in a glass greenhouse, and after 28 days, strains showing symptoms of yellowing, wilt and death were counted, and the control value was calculated based on the following formula from the obtained survey results.

Disease-causing strain rate (%) = number of diseased strains / number of surveyed strains control value = 100 × (1-rate of diseased strain in treated area / rate of diseased strain in untreated area)

<Test Example 4 Effect test on eggplant half body wilt>

  As can be seen from the above results, the present invention is more effective against eggplant half body wilt than by foliage spraying in irrigation treatment or soil mixing treatment.

Test Example 5: Effect test on tomato wilt disease Contaminated soil was prepared by mixing 5:95 tomato wilt fungus cultivated in a bran medium at a temperature of 25 ° C. for 1 month and non-contaminated sterilized soil. 10 ml of the prepared contaminated soil was filled in a glass vial (diameter 30 mm, height 75 mm, volume 50 ml), and 5 seeds of the drug-treated seed obtained in Preparation Example 22 were sown per glass vial. The section system was implemented with 4 glass vials / section. After sowing, it was kept in an incubator at a temperature of 30 ° C. and a humidity of 80%. In addition, watering was performed appropriately after sowing. The disease severity was investigated 19 days after the retention according to the following criteria, and the control value was calculated based on the following formula from the obtained survey results.

Disease index 0: Disease-free disease index 1: Disease index with shoot apex observed 2: Disease index with leaf defoliation 3: Disease index with overall strain wilt 4: Death

Disease severity = 100 × Σ (number of strains by disease severity × morbidity index) / (4 × total number of strains surveyed)
Control value = 100 × (1—degree of disease in treated area / degree of disease in untreated area)

<Test Example 5 Effect test on tomato wilt>

  As can be seen from the above results, the present invention is more effective against tomato wilt than the comparative drug benomyl wettable powder and is safe for crops.

Test Example 6: Aluminum in which a predetermined amount of the flowable agent described in Test Formulation Example 8 for tomato powdery mildew was laid on a tray of an electric fumigator (trade name: Konaden, manufacturer: Takahashi Rose Garden) It was dropped and smoked for 3 hours in a climate chamber. A total of 16 tomato seedlings (leaf stage: 2.5 leaf stage) were placed in four corners (4 pots / corner, 1 strain / pot) in the climate chamber. On the other hand, a chemical solution of a predetermined concentration was sprayed at 20 ml / pot on a tomato seedling placed in an artificial meteorograph using a pressure accumulator. After the chemical treatment, the treated test seedlings are immediately transferred to the glass greenhouse, and the day after the chemical treatment, the first seed leaf and the second true leaf surface of the test seedlings have a spore density of 1.0 × 10 ⁵ / ml. The spore suspension was spray inoculated using a spray gun. Twelve days after the inoculation, the disease severity was investigated for the first true leaf and the second true leaf, and the control value was calculated from the obtained disease severity.

Disease severity 0 (sickness area rate: 0%)
Disease severity 6.25 (sickness area rate: 0 to less than 6.3%)
Disease severity 12.5 (sickness area ratio: 6.3 to less than 12.5%)
Disease severity 25 (sickness area ratio: 12.5 to less than 25%)
Disease severity 50 (sickness area rate: less than 25-50%)
Disease severity 50 (sickness area rate: 50% or more)

Disease severity = 100 × Σ (number of strains by disease severity × attack index) / (4 × total number of strains) control value (%) = [1− (treatment disease severity / no treatment disease severity)] × 100

<Test Example 6 Effect test on tomato powdery mildew>

  As can be seen from the above results, the present invention is more effective against tomato powdery mildew than the foliar spray and the comparative drug quinomethionate treatment by smoke treatment.

Claims (7)

Formula [I]

Wherein R ¹ represents a hydrogen atom or a C ₁ -C ₄ alkyl group, R ² represents a hydrogen atom, a halogen atom, a C ₁ -C ₄ alkyl group or a C ₁ -C ₄ alkoxy group, A represents a nitrogen atom or a methine group (CH), and Y represents an oxygen atom, a methylene group (CH ₂ ) or a methyleneoxy group (OCH ₂ ).
A method for controlling pathogens by treating an agricultural or horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula (1) or a salt thereof on the plant itself or its habitat.   A method for controlling pathogens by treating an agricultural and horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof at a place where plants are to be grown.   A method for controlling pathogens by treating seeds with an agricultural and horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof.   Agricultural / horticultural fungicide composition comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof is mixed in all layers with respect to soil, cropping application, lateral strip application, floor soil mixing, cell seedling treatment , Planting hole treatment, plant root treatment, top dress, nursery box treatment to control pathogens.   A method for controlling a fusarium disease by treating an agricultural and horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof on a soil.   A method for controlling verticillium diseases by treating a soil with an agricultural and horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof.   A method for controlling pathogens by smoke treatment of an agricultural and horticultural fungicide comprising a 2-aminonicotinic acid ester derivative represented by the formula [I] or a salt thereof.