TW201540185A - Plant disease control composition and plant disease control method - Google Patents

Abstract

The present invention relates to a plant disease control composition comprising ethaboxam and 1,1-dimethylethyl N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenylmethylene]amino]oxy]methyl]-2-pyrimidyl] carbamate.

Description

Plant disease control composition and plant disease prevention and treatment method

The invention relates to a plant disease control composition and a plant disease prevention method.

In the past, ethaboxam has been known (see, for example, U.S. Patent No. 5,514,643) and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl) 1,1-dimethylethyl ester of methyl]amino]oxy]methyl]-2-pyrimidinyl]carbamate (hereinafter referred to as picarbutrazox) (see, for example, WO 2003) /016303 A1) It can be used as an active ingredient in plant disease control agents.

The object of the present invention is to provide a plant disease control composition and a plant disease control method which have superior plant disease control effects.

Intensive research conducted in order to find a plant disease control composition having superior phytopathic control effects has led to the inventors of the present invention finding that the phytoalecosis control composition containing ethaboxam and bicepril is superior to plant diseases. effect.

That is, the content of the present invention is as follows.

(1) A plant disease control composition comprising ethaboxam and bicapril.

(2) The plant disease control composition as described in (1), wherein the weight ratio of the ethaboxam to the capbutol is in the range of 1:0.01 to 1:50.

(3) A seed treatment agent comprising ethaboxam and bicapril.

(4) A plant seed to which an effective amount of ethaboxam and bicapril is attached.

(5) A method for controlling a plant disease, wherein an effective amount of ethaboxam and bicapril is applied to a plant or a soil for growing a plant.

(6) A combined use of ethaboxam and bicbutril, which is used for controlling plant diseases.

According to the present invention, plant diseases can be controlled.

[Detailed Description of Preferred Embodiments]

The ethaboxam used in the phytopathic control composition of the present invention is a compound described in the specification of U.S. Patent No. 5,514, 464, which is available from a commercial reagent or can be produced by a known method.

The bicapril which is used in the phytopathic control composition of the present invention is a compound described in WO 2003/016303 A1, which can be produced by a known method.

In the phytopathic control composition of the present invention, ethaboxam The weight ratio of the comparative capbutol is usually in the range of 1:0.01 to 1:50, preferably 1:0.04 to 1:25. In the case of using the plant disease controlling composition of the present invention as a seed treating agent, the weight ratio of the ethaboxam to the capbutol is usually in the range of 1:0.01 to 1:50, preferably 1:0.04. 1:25.

The phytopathic control composition of the present invention may be a simple mixture of ethaboxam and pirablio, but usually it may be a mixture of ethaboxam, bicapril and an inert carrier such as a solid carrier or a liquid carrier. A surfactant and/or other adjuvant may be added to the mixture to prepare the mixture into an oil solution, an emulsion, a flowable agent, a wettable powder, a granulated wettable powder, a powder, a granule or the like. Things.

In the phytopathogenic composition of the present invention, the total amount of ethaboxam and bicapril is usually in the range of 0.1% by weight to 100% by weight, preferably 0.2% by weight to 90% by weight.

Examples of the solid carrier used in the preparation include fine powders, granules and the like made of the following groups: minerals such as kaolin clay, attapulgite clay, bentonite (bentonite) ), montmorillonite, Japanese acid clay, pyrophyllite, talc, diatomaceous earth and calcite; natural organic matter such as corn cob powder and walnut shell powder; synthesis Organic substances such as urea; salts such as calcium carbonate and ammonium sulfate; synthetic inorganic substances such as synthetic hydrated cerium oxide; or the like. Examples of liquid carriers include: aromatic hydrocarbons such as xylene, toluene and methylnaphthalene; alcohols such as 2-propanol, ethylene glycol, propylene glycol and Glycol monoethyl ether; ketones such as acetone, cyclohexanone and isophorone; vegetable oils such as soybean oil and cottonseed oil; petroleum aliphatic hydrocarbons; esters; dimethyl hydrazine; acetonitrile;

Examples of the surfactant include: an anionic surfactant such as an alkyl sulfate salt, an alkylarylsulfonate, a dialkylsulfosuccinate, a polyoxyethylene alkylaryl ether phosphate, a lignosulfonate Acid salt and naphthalene sulfonate formaldehyde polycondensate; nonionic surfactants such as polyoxyethylene alkyl aryl ether, polyoxyethylene alkyl polyoxypropylene block copolymer and sorbitan fatty acid ester; A cationic surfactant such as an alkyltrimethylammonium salt.

Examples of other adjuvants for the preparation include: water-soluble polymers such as polyvinyl alcohol and polyvinylpyrrolidone; polysaccharides such as acacia, alginic acid, alginate, CMC (carboxymethylcellulose) and yellow Raw gum; inorganic materials such as magnesium aluminum silicate and alumina sol; preservatives; colorants; and stabilizers such as PAP (isopropylated phosphate) and BHT.

The plant disease control composition of the present invention can also be prepared by separately preparing the ethaboxam and the piracetam by the above method, diluting the preparation with water as needed, and mixing these preparations or diluents.

The plant disease control composition of the present invention may further comprise one or more other fungicides and/or insecticides.

Examples of plant diseases which can be controlled by the present invention include the following diseases.

Plant diseases of rice: blast (Magnaporthe grisea), brown spot (Cochliobolus) Miyabeanus)), sheath blight (Rhizoctonia solani) and rice bacillus (bakanae) (Gibberella fujikuroi).

Plant diseases of wheat: powdery mildew (Erysiphe graminis), fusarium head blight (Fusarium graminearum, F. avenacerum, yellow hazel (F. culmorum), snow rot fungus (Microdochium nivale), rust (Puccinia striiformis, P. graminis, P. recondita), Pink snow rot (Micronectriella nivale), typhula snow blight (Typhula spp), loose smut (wheat smut) Ustilago tritici, smut (Tilletia caries), eyespot (Pseudocercosporella herpotrichoides), leaf blight (Mycosphaerella graminicola), septoria leaf spot (Stagonospora nodorum) and tan spot (Pyrenophora) Tritici-repentis)).

Plant diseases of barley: powdery mildew (white powder), scab (C. oxysporum, Fusarium oxysporum, Fusarium oxysporum, Fusarium oxysporum f. sp.), rust (S. striata, Pleurotus ostreatus, barley stalk) P. hordei, smut (Ustilago nuda), leaf blotch (Rhynchosporium secalis), net blotch (net blotch) ) (Barley Net) Pyrenophora teres, leaf spot (Cochliobolus sativus), leaf stripe (Pyrenophora graminea), and sclerotium Rhizoctonia damping-off (Rhizoctonia solani).

Maize plant disease: smut (Ustilago maydis), brown leaf spot (Cochliobolus heterostrophus), copper spot (Gloeocercospora sorghi) )), southern corn rust (Puccinia polysora), gray leaf spot (Cercospora zeae-maydis), Rhizoctonia solani (Rh. ruthenium) and frost Downy mildew (Peronosclerospora philippinensis).

Plant diseases of citrus plants: melanose (Diaporthe citri), scab (Elsinoe fawcetti), penicillium rot (citrus green) Penicillium digitatum, P.italicum, brown rot (Phytophthora parasitica, and Phytophthora citrophthora).

Apple plant diseases: bloom, blight (Monilinia mali), canker (Valsa ceratosperma), powdery mildew (powdery mildew) (Podosphaera leucotricha), alternaria leaf spot (Alternaria alternata apple pathotype), spot disease (Venturia) Inaequalis)), bitter rot (Colletotrichum acutatum), crawn rot (Phytophtora cactorum), blotch (blotch) Diplocarpon mali), ring rot (Botryosphaeria berengeriana) and violet root rot (Helicobasidium mompa).

Pear plant diseases: spot disease (Venturia nashicola, V. pirina), black spot (Alternaria alternata Japanese pear pathotype), rust ( Gymnosporangium haraeanum and Phytophthora fruit rot (Phytophtora cactorum).

Peach phytopathies: brown rot (Monilinia fructicola), spot disease (Cladosporium carpophilum) and phomopsis rot (Pseudomonas spp.) (Phomopsis spp.)).

Grape plant diseases: anthracnose (Elsinoe ampelina), ripe rot (Glomerella cingulata), powdery mildew (Uncinula necator) ), rust (Phakopsora ampelopsidis), black rot ((Guignardia bidwellii)) and downy mildew (Plasmopara viticola).

Plant disease of persimmon: anthracnose (Gloeosporium

Kaki)), leaf spot (Cercospora kaki) and persimmon ball cavity Mycosphaerella nawae).

Plant disease of gourd: anthracnose (Colletotrichum lagenarium), powdery mildew (Sphaerotheca fuliginea), gummy stem blight (Mycosphaerella melonis) , fusarium wilt (Fusarium oxysporum), downy mildew (Pseudoperonospora cubensis), phytophthora rot (Phytophthora spp.) And blight (Pythium spp.).

Tomato plant diseases: early blight (Alternaria solani), leaf mold (Cladosporium fulvum) and late blight (Phytophthora infestans) .

Plant diseases of eggplant: brown spot disease (Phomopsis vexans) and powdery mildew (Erysiphe cichoracearum).

Plant diseases of cruciferous vegetables: alternaria leaf spot (Alternaria japonica), white spot (Cercosporella brassicae), clubroot (candida albicans) (Plasmodiophora brassicae)) and downy mildew (Peronospora parasitica).

Plant diseases of scallions: rust (Puccinia allii) and downy mildew (Peronospora destructor).

Soybean plant disease: purple seed stain Cercospora kikuchii), sphaceloma scad (Elsinoe glycines), pod and stem blight (Diaporthe phaseolorum var.sojae) , Septoria brown rot (Septoria glycines), frogeye leaf spot (Cercospora sojina), rust (Phakopsora) Pachyrhizi)), brown stalk rot (Phytophthora sojae) and Rhizoctonia solani (Rh.

Phytopathogen of cowpea: anthracnose (Colletotrichum lindemthianum).

Peanut plant diseases: leaf spot (Cercospora personata), brown leaf spot (Cercospora arachidicola) and southern blight (Sclerotium rolfsii).

Plant diseases of peas: powdery mildew (Erysiphe pisi) and root rot (Fusarium solani F. sp. pisi).

Potato plant diseases: early blight (Alternaria solani), late blight (Phytophthora infestans), pink rot (Phytophthora erythroseptica), whitefly disease ( Potato smut (Spongospora subterranean F.sp. subterranea) and black scurf (Rhizobacter serrata).

Strawberry plant disease: powdery mildew (Sphaerotheca) Humuli)) and anthracnose (Glomerella cingulata).

Tea plant disease: net blister blight (Exobasidium reticulatum), white scab (Elsinoe leucospila), gray blight (pray blight) Pestalotiopsis spp. and anthracnose (Colletotrichum theae-sinensis).

Tobacco plant diseases: brown spot (Alternaria longipes), powdery mildew (Erysiphe cichoracearum), anthracnose (Colletotrichum tabacum), downy mildew ( Tobacco downy mildew (Peronospora tabacina) and tobacco black shank (Phytophthora nicotianae).

Rapeseed plant disease: sclerotinia rot (Sclerotinia sclerotiorum and Rhizoctonia blight (Rhizobacter serrata).

Cotton plant disease: rhizoctonia damping-off (Rhizobacter serrata).

Beet plant diseases: cercospora leaf spot (Cercospora beticola), leaf and root blight (Rhizobacter serrata) and aphanomyces root rot (Aphanomyces cochlioides).

Rose plant disease: black spot (Diplocarpon rosae), powdery mildew (Sphaerotheca pannosa) and downy mildew (rose downy mildew) (Peronospora sparsa)).

Plant diseases of chrysanthemums and asteraceous vegetables: downy mildew (Bremia lactucae), leaf blight (Septoria chrysanthemi-indici) and white rust (Puccinia) Horiana)).

Various groups of plant diseases: diseases caused by Pythium (Pythium debarianum), Pythium graminicola, Pythium irregulare, Pythium ultimum , gray mold (Botrytis cinerea), sclerotinia rot (Sclerotinia sclerotiorum) and chalk disease (Cretaceous).

Plant disease of white radish: alternaria leaf spot (Alternaria brassicicola).

Turfgrass plant disease: silver leaf spot (Sclerotinia homeocarpa), and brown spot and giant spot disease (Rhizobacter serrata).

Banana plant disease: banana leaf spot (sigatoka) (Mycosphaerella fijiensis and Mycosphaerella musicola).

Sunflower plant disease: downy mildew (Plasmopara halstedii).

A seed or plant disease at the initial stage of growth of various plants is caused by the following species: Aspergillus spp, Penicillium spp., Fusarium spp., Gibberella Genipea (Gibberella spp.), Trichoderma spp., Leuconostoc Genus (Thielaviopsis spp.), Rhizopus spp., Mucor spp., Corticium spp., Phoma spp., Rhizoctonia Rhizoctonia spp), Diplodia spp., and the like.

Various viral diseases of plants that are transmitted by Polymixa spp., Olpidium spp., and the like.

Specific examples of diseases expected to have high activity during treatment, bulbs, or the like include: wheat caused by Pythium (Pythium bacillus, Pythium fulvum, Pythium faecalis, and Pythium ultimum), Blight and root rot of barley, corn, rice, sorghum, soybean, cotton, rapeseed, cucumber, sunflower, sugar beet and wheat grass; silk stalk root rot of beet (S. fuliginea); soybean brown Stem rot (Phytophthora sojae); late blight of tobacco (Tobacco black smut); downy mildew of sunflower (Helame downy mildew); late blight of potato (Phytophthora infestans); downy mildew of corn (corn Downy mildew);

Plant diseases can be controlled by applying an effective amount of ethaboxam and bicapril to the soil of plants or growing plants. The plant to which the ethaboxam and the bicepril can be used are the stems and leaves of the plants, the seeds of the plants, the bulbs of the plants or the like. Here, a bulb refers to a discided stem, a corm, a rhizome, a tuber, a tuberous, and a rhizophore.

In the case of administration of ethaboxam and bicapril on plants, soils of growing plants or the like, ethaboxam and bicapril can be administered separately during the same period, but for ease of administration, ethaboxam and Bikabrito It is usually applied in the form of a plant disease control composition of the present invention.

Specific examples of the control method of the present invention include treating stems and leaves of plants, such as spraying foliage, treating plants, such as treating soil, treating seeds and bulbs, such as seed disinfection and seed coating, and the like.

Specific examples of treating stems and leaves of plants in the control method of the present invention include a method of allowing plants to directly absorb ethaboxam and bicbutril prior to transplantation, and administering ethaboxam and bicapril Treatment of plant surfaces, such as spraying foliage and spraying trunks. Examples of treatments that allow plants to directly absorb ethaboxam and bicepozole prior to transplantation include methods of immersing whole plants or roots therein, which may be prepared using a solid carrier such as mineral powder. The method by which the substance adheres to the root.

In the control method of the present invention, examples of the cultivation site of the treated plant include spraying on the soil, mixing with the soil, chemical irrigation in the soil (chemical liquid application, soil injection, and chemical liquid dripping), and the site to be treated Examples include planting holes, planting rows, surrounding planting holes, planting rows, whole areas of cultivated land, ‧ parts of plant ground side, row spacing, under canopy, main stem ridge, acreage, seedling box, seedling tray, seedbed, etc. . Examples of treatment time include pre-planting, sowing, shortly after sowing, planting, pre-planting, colonization, growth period after planting, and the like. Further, the active ingredient may be simultaneously applied to the plant at the cultivation site of the plant, and a solid fertilizer such as a paste fertilizer containing the active ingredient may be applied to the soil. In addition, the active ingredients may be mixed in an irrigation solution, examples of which include injection irrigation equipment (irrigation pipes, irrigation pipes, sprinklers or the like) mixed in an inter-row overflow In the liquid, mixed into the water medium, and the like. Further, the irrigation liquid and the active ingredient may be premixed, and the mixture may be applied by a suitable irrigation method such as, for example, the above-described irrigation method, or other methods of watering, submerging, and the like.

The treatment of the seed and the bulb in the control method of the present invention is, for example, a method of applying the plant disease control composition of the present invention to a plant seed, a bulb or the like for preventing a plant disease, and specific examples thereof include: The suspension of the phytopathic control composition is sprayed on the surface of the seed or the surface of the bulb in a spray form; the wettable powder or emulsion of the phytopathic control composition of the present invention mixed with a small amount of water or in its original form A flowable agent or the like is applied to a seed or bulb smear; wherein the seed is immersed in a solution of the phytopathic control composition of the present invention for a certain period of immersion treatment; a film coating treatment; and a pellet coating treatment.

In the case where the ethaboxam and bicapril are applied to the soil of the plant or the growing plant, the application amount thereof may be according to the kind of the plant to be treated, the kind of the plant disease to be controlled, and the plant disease to be controlled. There are variations in the type and degree, the form of the modulator, the processing time, the weather conditions, and the like. The total amount of ethaboxam and bicapril (hereinafter referred to as "the amount of the active ingredient of the present invention") is usually in the range of 1 g to 5000 g per 10,000 m ^{2 of} soil, preferably 2 g to 500 g.

Usually, the emulsion, wettable powder, flowable agent, or the like is first diluted with water and then sprayed. In this case, the total concentration of ethaboxam and bicapril is usually in the range of 0.0001% by weight to 3% by weight, preferably in the range of 0.0005% by weight to 1% by weight. In powders, granules In the case of agents or analogs, the treatment is usually carried out in an initial, undiluted form.

In the treatment of the seed, the application amount of the active ingredient of the present invention is usually in the range of 0.001 g to 10 g, preferably 0.01 to 3 g per kg of the seed. An effective amount of ethaboxam and bicapril can be attached to the plant seed of the present invention to control plant diseases. The amount of the active ingredient of the present invention attached to the seed is usually in the range of 0.001 g to 10 g per kg of the seed, preferably 0.01 g to 3 g.

The control method of the present invention can be carried out on crop fields such as dry fields, rice fields, lawns and orchards, or non-crop fields.

Furthermore, the present invention can be used to control plant diseases in crop fields without causing any chemical damage to the crops or plants or the like in similar land of the following plants: crops: corn, rice, wheat, barley, Rye, oats, sorghum, cotton, soybeans, peanuts, buckwheat, sugar beets, rapeseed, sunflower, sugar cane, tobacco, etc.; vegetables: solanaceous vegetables (eggplant, tomato, green pepper, pepper, potato, etc.), cucurbitaceae Vegetables (cucurbitaceous vegetable) (cucumber, pumpkin, zucchini, watermelon, melon, American pumpkin, etc.), cruciferous vegetables (Japanese radish, white radish, horseradish, kohlrabi, Chinese cabbage, cabbage, black mustard, broccoli, broccoli , etc.), Asteraceous vegetable (burdock, chrysanthemum, artichoke, lettuce, etc.), liliaceae vegetables (scallions, onions, garlic and asparagus), umbelliferous vegetables (carrots, parsley, celery, European windbreak) Grass, etc.) Vegetables, Swiss chard, etc.), Labiatae (perilla, mint, basil, etc.), strawberry, sweet potato, Japanese yam, medlar, etc.; flower; foliage plant; turfgrass; fruit: pome fruit (apple, European pear, Japanese pear, Chinese papaya, papaya, etc.), stone fleshy fruit (peach, plum, nectarine, Japanese plum, yellow peach, apricot, jujube, etc.), citrus plants (Wenzhou mandarin orange, orange, lemon, lime) , grapefruit, etc.), nuts (chestnuts, walnuts, hazelnuts, almonds, pistachios, cashews, hawaiian beans, etc.), berries (blueberries, cranberries, blackberries, raspberries, etc.), grapes, persimmons, Olives, alfalfa, bananas, coffee, dates, coconuts, etc.; and trees other than fruit trees: tea, mulberry, flowering trees and shrubs, tung tree, street trees (ash tree, birch, hawthorn ( Dogwood), eucalyptus, ginkgo, lilac, maple tree, oak, poplar, cercis, Chinese sweet gum, Plane tree, zelkova, Japanese arborvi Tae), fir tree, Japanese hemlock, needle juniper, pine, spruce, and yew.

The control method of the present invention can be used to control plant diseases in crop plants for growing plants, particularly corn, rice, wheat, barley, sorghum, cotton, soybean, sugar beet, rapeseed, and potato.

Incidentally, the above plants include their genetically modified plants.

The present invention will be described in more detail below by means of a modulator embodiment, a seed treatment example and a test example, but the invention is not limited to the following examples. Incidentally, in the following examples, "parts" means "parts by weight" unless otherwise specified.

Modulator Example 1

Mixing 10 parts of ethaboxam, 2 parts of capecoxiol, 14 parts of polyoxyethylene styrylphenyl ether, 6 parts of calcium dodecylbenzenesulfonate and 76.5 parts of xylene Get the modulator.

Modulator Example 2

Mixing 8 parts of ethaboxam, 2 parts of capecoxiol, 35 parts of white carbon and ammonium polyoxyethylene alkyl ether sulfate (weight ratio 1:1) and 55 parts of water, and then wet Grinding The mixture is ground to obtain a preparation.

Modulator Example 3

Mixing 2 parts of ethaboxam, 10 parts of capecoxiol, 1.5 parts of sorbitan trioleate and 31.5 parts of an aqueous solution containing 2 parts of polyvinyl alcohol, followed by wet milling Grinding, then 45 parts An aqueous solution containing 0.05 part of xanthan gum and 0.1 part of magnesium aluminum silicate was added to the resulting mixture, and 10 parts of propylene glycol was further added thereto, and then the mixture thus obtained was stirred and mixed to obtain a preparation.

Modulator Example 4

40 parts of ethaboxam, 5 parts of carbabride, 5 parts of propylene glycol, 5 parts of polyoxyethylene tristyrene phenol potassium phosphate, 0.2 parts of decyl ketone as a base defoamer, 0.3 A portion of 1,2-benzisothiazolin-3-one was mixed with 49.5 parts of ion-exchanged water, and then the mixture was ground by wet milling to obtain a preparation.

Modulator Example 5

10 parts of ethaboxam, 40 parts of carbabride, 38.5 parts of kaolin, 10 parts of sodium salt of naphthalene sulfonate formaldehyde condensate and 1.5 parts of alkyl naphthalene sulfonate are pulverized and mixed to obtain Modulator.

Modulator Example 6

3 parts of ethaboxam, 2 parts of capecoxiol, 1 part of synthetic hydrated ceria, 2 parts of calcium lignosulfonate, 30 parts of bentonite and 62 parts of kaolin are thoroughly pulverized and mixed. Water was added to the mixture, the mixture was kneaded sufficiently, and the kneaded mixture was granulated and dried to obtain a preparation.

Modulator Example 7

20 parts of ethaboxam, 15 parts of carbabride, 3 parts of calcium lignosulfonate, 2 parts of sodium lauryl sulfate and 60 parts of synthetic hydrated cerium oxide are fully pulverized and mixed to obtain Modulator.

Modulator Example 8

Five parts of ethaboxam, one part of capecoxiol, 84 parts of kaolin and 10 parts of talc were thoroughly pulverized and mixed to obtain a preparation.

Modulator Example 9

Mix 5 parts of ethaboxam, 1 part of metalaxyl, 1.5 parts of sorbitan trioleate and 28 parts of an aqueous solution containing 2 parts of polyvinyl alcohol, and then by wet grinding The mixture was ground, and an aqueous solution containing 0.05 part of xanthan gum and 0.1 part of magnesium aluminum silicate was added to obtain a mixture, so that the total amount of the mixture became 90 parts, and further 10 parts of propylene glycol was added thereto, followed by stirring and mixing. The mixture thus obtained is obtained to obtain a flowable preparation.

Modulator Example 10

5 parts of ethaboxam, 5 parts of carbabride, 1 part of tolclofos methyl, 1.5 parts of sorbitan trioleate and 28 parts of an aqueous solution containing 2 parts of polyvinyl alcohol Mixing, then grinding the mixture by wet grinding, and adding an aqueous solution containing 0.05 part of xanthan gum and 0.1 part of magnesium aluminum silicate to obtain a mixture, so that the total amount of the mixture becomes 90 parts, further 10 parts Add propylene glycol, stir and mix The mixture thus obtained is obtained to obtain a flowable preparation.

Modulators Examples 11 to 26

The operation was carried out in a manner similar to that of Modifier Example 10 except that the compound shown in Table 1 and the amount shown in Table 1 were used instead of 1 part of dextrozine to obtain a flowable modulating agent.

Seed treatment example 1

Using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER), 500 ml of a preparation prepared according to Modifier Example 1 was applied to 100 kg of sorghum dry seeds to obtain treated seeds.

Seed treatment example 2

Using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER), 50 ml of a preparation prepared according to Modifier Example 2 was applied to 10 kg of dried rapeseed to obtain treated seeds.

Seed treatment example 3

40 ml of the preparation prepared according to Modifier Example 3 was applied to 10 kg of corn dry seeds using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER) to obtain treated seeds.

Seed treatment example 4

Using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER), 60 ml of the preparation prepared according to the preparation example 4 was applied to 10 kg of dried rice seeds to obtain treated seeds.

Seed treatment example 5

The treated seeds were prepared by powder coating of 50 g of the preparation agent prepared according to the preparation example 5 for corn dry seeds (10 kg).

Seed treatment example 6

Using a rotating seed processor (seed processor, by Hege 11 manufactured by WINTERSTEIGER 11) 500 ml of a preparation prepared according to the preparation example 1 was applied to 100 kg of dried beet seeds to obtain treated seeds.

Seed treatment example 7

50 ml of the preparation prepared according to the preparation example 2 was applied to 10 kg of soybean dried seeds using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER) to obtain treated seeds.

Seed treatment example 8

50 ml of the preparation prepared according to Modifier Example 3 was applied to 10 kg of wheat dry seeds using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER) to obtain treated seeds.

Seed Treatment Example 9

70 ml of the preparation prepared according to Modifier Example 4 was applied to 10 kg of sunflower dried seeds using a rotary seed processor (seed processor, Hege 11 manufactured by WINTERSTEIGER) to obtain treated seeds.

Seed treatment example 10

40g of the preparation agent prepared according to the preparation example 5 is cotton drying Seeds (10 kg) were powder coated to obtain treated seeds.

Test Example 1 Method of preparing a chemical solution

First, 10 parts of ethaboxam or bicabru, 35 parts of a mixture of white carbon and polyoxyethylene alkyl ether sulfate (1:1 by weight) and 55 parts of water were mixed. Then, the mixture thus obtained is ground by wet grinding to obtain each flowable preparation. Each of the flowable modulating agents obtained was diluted with water and mixed so that the mixed solution could have the concentrations shown in Table 2, thereby preparing each solution for the test.

The culture soil was filled in a plastic pot having a diameter of 5.5 cm, and a tomato was planted therein. After sowing, 15 ml of each chemical solution prepared by the above method was sprayed on the stems and leaves of the tomato which had been grown for 21 days with a spray gun. On the next day, the zoospores suspension of Phytophthora infestans at a concentration of 1.0 × 10 ⁴ /ml was sprayed with a sprayer to treat the stems and leaves. The tomatoes were grown for 24 hours at 20 ° C and 100% humidity, followed by growth for 12 days in a greenhouse set at 20 °C. Thereafter, the infected area of the tomato was measured, and the infection area ratio (hereinafter referred to as the infected area ratio of the treated portion) was obtained according to Formula 1.

Formula 1 infection area ratio = 100 × (infected tomato leaf area / tomato leaf area)

According to the above method, only the water is used instead of the chemical solution, and the ratio of each infected area is obtained according to the formula 1 (hereinafter referred to as nowhere) The area of infection of the rational part).

Each control value was calculated from the ratio of the infected area of each treated portion and the ratio of the infected area of each untreated portion according to Formula 2.

Formula 2 control value (%) = 100 × (A-B) / A

A: Infected area ratio of untreated portion

B: ratio of infected area of treated part

The results are shown in Table 2.

Test Example 2

An acetone solution of ethaboxam was mixed with a solution of carbabride in acetone to prepare a chemical solution each having a concentration of ethaboxam and bicapril as shown in Table 3. Applying each chemical solution containing ethaboxam and/or capabride to the surface of soybean ("Hatayutaka") seeds, It stood still for one night. Fill the plastic pot with the culture soil and seed the seeds in it. Then, the seed is covered with a sandy loam mixed with a rice bran substrate in which a Pythium oxysporum (Pythium ultimum) has been cultured. After the irrigation, the seeds were grown at 25 ° C for 8 days and the incidence of the disease (hereinafter referred to as the incidence of the plant disease in the treated portion) was examined according to the formula 3.

Further, in order to calculate the control value, the incidence of the disease when the chemical solution was not used (hereinafter referred to as the incidence of the plant disease in the untreated portion) was also examined.

The control value was calculated from the incidence of plant diseases in the treated portion and the incidence of plant diseases in the untreated portion according to Formula 4.

Incidence of formula 3 = (number of ungerminated seeds + number of infected seedlings) × 100 / (total number of seeds)

Formula 4 control value (%) = 100 × (C-D) / C

C: incidence of untreated parts of plant diseases

D: incidence of plant diseases in the treated part

The results are shown in Table 3.

According to the invention, plant diseases can be prevented.

Claims (6)

A plant disease control composition comprising ethaboxam and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl)methyl]amine 1,1-dimethylethyl ester of hydroxy]methyl]-2-pyrimidinyl]carbamic acid. For example, the plant disease control composition of claim 1 wherein the ethaboxam is extended to N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl) The weight ratio of methyl]amino]oxy]methyl]-2-pyrimidinyl]1,1-dimethylethylcarbamate is in the range of 1:0.01 to 1:50. A seed treatment agent comprising ethaboxam and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl)methyl]amino]oxy] 1,1-Dimethylethyl methyl]-2-pyrimidinyl]carbamate. A plant seed which is bound to an effective amount of ethaboxam and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl)methyl]amino] 1,1-dimethylethyl oxy]methyl]-2-pyrimidinyl]carbamate. A method for controlling plant diseases, wherein an effective amount of ethaboxam and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl)methyl]amino] 1,1-dimethylethyl oxy]methyl]-2-pyrimidinyl]carbamate is applied to plants or soil for growing plants. A thiazolidin and N-[6-[[[(Z)-[(1-methyl-1H-tetrazol-5-yl)phenyl)methyl]amino]oxy]methyl]-2- A combined use of pyrimidinyl] 1,1-dimethylethyl carbazate for controlling plant diseases.