Fungicidal Composition

Abstract: There is disclosed a microbicidal composition comprising as active ingredients: (I) a dithiocarbonimide compound represented by the general formula: wherein Z represents a CH group or nitrogen, R 1 and R 2 are the same or different and represent hydrogen, a C 1 -C 6 alkyl group, halogen, a C 1 -C 6 alkoxy group, a C 1 -C 6 haloalkyl group or a C 1 -C 6 haloalkoxy group, or R 1 and R 2 are taken together to form a methylenedioxy group optionally substituted with fluorine, and (II) at least one compound selected from the group consisting of an azole microbicidal compound, a cyclic amine microbicidal compound, an N-(3,5-dichlorophenyl)imide microbicidal compound, an anilinopyrimidine microbicidal compound, cyanopyrrole microbicidal compound, a benzimidazole microbicidal compound, fluazinam, thiram and sulfur.

Description: The present invention relates to a fungicidal composition. More particularly, the present invention relates to a fungicidal composition which is used for agriculture and horticulture. Hitherto many fungicidal compositions are known. However, the kind of the disease damages to be controlled is very diverse and it is difficult to actually specify the kind of the disease damage, select the suitable fungicidal agent thereto and control the damage. In addition, the fungicidal agent has to deal with the new disease damages derived from the changes in agricultural practice. For these reasons, there is a need for a fungicidal composition having high activity and wide fungicidal spectrum. A main object of the invention is to provide a fungicidal composition having high activity and wide fungicidal spectrum. This object as well as other objects and advantages of the present invention will become apparent to those skilled in the art from the following description. The present invention provides a fungicidal composition comprising as active ingredients: (I) a dithiocarbonimide compound (hereinafter referred to as "Compound (I)") represented by the general formula: wherein Z represents a CH group or nitrogen, R 1 and R 2 are the same or different and represent hydrogen, a C 1 -C 6 alkyl group, halogen, a C 1 -C 6 alkoxy group, a C 1 -C 6 haloalkyl group or a C 1 -C 6 haloalkoxy group, or R 1 and R 2 are taken together to form a methylenedioxy group optionally substituted with fluorine, and (II) at least one compound (hereinafter referred to as "Compound (II)") selected from the group consisting of azole fungicidal compounds, cyclic amine fungicidal compounds, N-(3,5-dichlorophenyl)imide fungicidal compounds, anilinopyrimidine fungicidal compounds, cyanopyrrole fungicidal compounds, benzimidazole fungicidal compounds, fluazinam, thiram and sulfur; the compounds (I) and (II) being in an amount producing a synergistic fungicidal effect. 1. Detailed description of Compound (I) At first, Compound (I) is explained. In the above general formula, examples of the C 1 -C 6 alkyl group represented by R 1 and R 2 include a methyl group and an ethyl group. Examples of halogen include fluorine and chlorine. Examples of the C 1 -C 6 alkoxy group include a methoxy group and an ethoxy group. Examples of the C 1 -C 6 haloalkyl group include a trifluoromethyl group. Examples of the C 1 -C 6 haloalkoxy group include a trifluoromethoxy group. Compound (I) can be prepared by a method described in EP-A-0656351. The embodiments of Compound (I) are shown together with the compound numbers in Table 1 (The embodiments are shown by the definition of the respective substituents in the compound represented by the above general formula). Compound No. Z R 1 R 2 (Ia) CH CH 3 H (Ib) CH C 2 H 5 H (Ic) CH OC 2 H 5 H (Id) CH CF 3 H (Ie) CH OC 2 H 5 F (If) CH OCF 2 O (Ig) N OC 2 H 5 H (Ih) CH CF 3 O H 2. Detailed description of Compound (II) The page number listed after the name of each compound represents the page where each compound is described in "The Pesticide Manual, Tenth Edition (edited by Clive Tomlin, published by The British Crop Protection Council and The Royal Society of Chemistry, 1994)". In the present invention, the azole fungicidal compound refers to a fungicidal compound having a triazole ring or an imidazole ring, such as 1-[[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole {propiconazole, page 855}, β-(4-chlorophenoxy)-α-(1,1-dimethylethyl)-1H-1,2,4-triazol-1-ethanol {triadimenol, page 1001}, 1-(N-propyl-N-[2-(2,4,6-trichlorophenoxy)ethyl])carbamoylimidazole {prochloraz, page 832}, 1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole {penconazole, page 776}, 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol {tebuconazole, page 942}, 1-[[bis(4-fluorophenyl)methylsilyl]methyl]-1H-1,2,4-triazole {flusilazole, page 510}, (E)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)-pent-1-ene-3-ol {diniconazole, page 356}, 1-[[4-bromo-2-(2,4-dichlorophenyl)tetrahydro-2-furanyl]methyl]-1H-1,2,4-triazole {bromuconazole, page 124}, cis-1-[[3-(2-chlorophenyl)-2-(4-fluorophenyl)oxiranyl]methyl]-1H-1,2,4-triazole {epoxyconazole; BAS480F, page 67}, 3-chloro-4-[4-methyl-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-2-yl]phenyl 4-chlorophenyl ether {difenoconazole, page 328}, 2-(4-chlorophenyl)-3-cyclopropyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol {cyproconazole, page 268), 5-[(4-chlorophenyl)methyl]-2,2-dimethyl-1-(1H-1,2,4-triazol-1-ylmethyl)cyclopentanol {metconazole, page 669), (E)-4-chloro-α,α,α-trifluoro-N-(1-imidazol-1-yl-2-propoxyethylidene)-o-toluidine {triflumizole, page 1022}, 2-(2,4-dichlorophenyl)-3-(1H-1,2,4-triazol-1-yl)propyl 1,1,2,2-tetrafluoroethyl ether {tetraconazole, page 965}, 2-(4-chlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)hexanenitrile {myclobutanil, page 712}, 4-(4-chlorophenyl)-2-phenyl-2-(1H-1,2,4-triazol-1-ylmethyl)butyronitrile (fenbuconazole, page 428}, 2-(2,4-dichlorophenyl)-1-(1H-1,2,4-triazol-1-yl)hexan-2-ol {hexaconazole, page 562}, 3-(2,4-dichlorophenyl)-6-fluoro-2-(1H-1,2,4-triazol-1-yl)quinazolin-4(3H)-one {fluquinconazole, page 498}, (E)-5-(4-chlorobenzylidene)-2,2-dimethyl-1-(1H-1,2,4-triazol-1-ylmethyl)cyclopentanol {triticonazole, page 1033}, 1-(biphenyl-4-yloxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol {bitertanol, page 106}, 1-[2-(2,4-dichlorophenyl)-2-(2-propenyloxy)ethyl]-1H-imidazol {imazalil, page 580} and 2,4'-difluoro-α-(1H-1,2,4-triazol-1-ylmethyl)benzhydrylalcohol {flutriafol, page 514}. The cyclic amine fungicidal compound refers to a compound having the 4-substituted-2,6-dimethylmorpholine structure, such as cis-4-[3-(4-tert-butylphenyl)-2-methylpropyl]-2,6-dimethylmorpholine {fenpropimorph, page 448} and 2,6-dimethyl-4-tridecylmorpholine {tridemorph, page 1019), and a fungicidal compound having the N-substituted-piperidine structure, such as 1-[3-(4-tert-butylphenyl)-2-methylpropyl]piperidine {fenpropidin, page 447}. The N-(3,5-dichlorophenyl)imide fungicidal compound represents a fungicidal compound having the N-(3,5-dichlorophenyl)imide structure, such as N-(3,5-dichlorophenyl)-1,2-dimethylcyclopropane-1,2-dicarboximide {procymidone, page 834}, 3-(3,5-dichlorophenyl)-5-methyl-5-vinyl-1,3-oxazolidin-2,4-dione {vinclozolin, page 1041} and 3-(3,5-dichlorophenyl)-N-(1-methylethyl)-2,4-dioxo-1-imidazolidinecarboxamide {iprodione, page 603}. The anilinopyrimidine fungicidal compound refers to a fungicidal compound having the anilinopyrimidine structure, such as N-(4,6-dimethylpyrimidin-2-yl)aniline {pyrimethanil, page 885), N-(4-methyl-6-prop-1-ynylpyrimidin-2-yl)aniline {mepanipyrim, page 652} and 4-cyclopropyl-6-methyl-N-phenylpyrimidine-2-amine {cyprodinil, CGA219417, page 161}. The cyanopyrrole fungicidal compound means a fungicidal compound having the 3-cyano-4-phenylpyrrole structure, such as 4-(2,2-difluoro-1,3-benzodioxol-4-yl)pyrrole-3-carbonitrile {fludioxonil, page 482} and 4-(2,3-dichlorophenyl)pyrrole-3-carbonitrile {fenpiclonil, page 444}. The benzimidazole fungicidal compound refers to a fungicidal compound having the benzimidazole structure or having that structure when metabolized, such as methyl benzimidazol-2-ylcarbamate {carbendazim, page 149}, methyl 1-(butylcarbamoyl)benzimidazol-2-ylcarbamate {benomyl, page 82} and dimethyl [1,2-phenylenebis(iminocarbonothioyl)]bis[carbamate] {thiophanate-methyl, page 987}. Fluazinam refers to 3-chloro-N-(3-chloro-5-trifluoromethyl-2-pyridyl)-α,α,α-trifluoro-2,6-dinitro-p-toluidine (page 474). Thiram refers to bis(dimethylthiocarbamoyl)disulfide (page 989). Examples of the vegetable disease damages which can be controlled by the present invention are blast ( Pyricularia oryzae ), leaf spot ( Cochliobolus miyabeanus ) and sheath blight ( Rhizoctonia solani ) of the rice plant, powdery mildew ( Erysiphe graminis , f . sp.hordei , f . sp.tritici ), scab ( Gibberella zeae ), rust ( Puccinia striiformis , P . graminis , P . recondita , P . hordei ), snow blight ( Typhula sp . Micronectriella nivalis ), loose smut ( Ustilago tritici , U . nuda ), bunt ( Tilletia caries ), eyespot ( Pseudocercosporella herpotrichoides ), foot rot ( Rhizoctonia cerealis ), leaf blotch ( Rhynchosporium secalis ), leaf blight ( Septoria tritici ) and glume blotch ( Leptosphaeria nodorum ) of cereals, melanose ( Diaporthe citri ), scab ( Elsinoe fawcetti ), blue mold ( Penicillium digitatum ) and green mold ( P . italicum ) of oranges, blossom blight ( Sclerotinia mali ), canker ( Valsa mali ), powdery mildew ( Podosphaera leucotricha ), alternaria blotch ( Alternaria mali ) and scab ( Venturia inaequalis ) of apple, scab ( Venturia nashicola ), black spot ( Alternaria kikuchiana ) and rust ( Gymnosporangium haraeanum ) of pear, brown rot ( Sclerotinia cinerea ), scab ( Cladosporium carpophilum ) and phomopsis rot ( Phomopsis sp .) of peach, downy mildew ( Plasmopara viticola ), anthracnose ( Elsinoe ampelina ), ripe rot ( Glomerella cingulata ), powdery mildew ( Uncinula necator ) and rust ( Phakopsora ampelopsidis ) of grape, anthracnose ( Gloeosporium kaki ) and angular leaf spot ( Cercospora kaki , Mycosphaerelle nawae ) of persimmon, downy mildew ( Pseudoperonospora cubensis ), anthracnose ( Collectotrichum lagenarium ), powdery mildew ( Sphaerotheca fuliginea ) and gummy stem blight ( Mycosphaerella melonis ) of Cucurbit, early blight ( Alternaria solani ), leaf mold ( Cladosporium fulvum ) and late blight ( Phytophthora infestans ) of tomato, brown spot ( Phomopsis vexans ) and powdery mildew ( Erysiphe cichoracearum ) of egg plant, alternaria leaf spot ( Alternaria japonica ) and white spot ( Cercosporella brassicae ) of Crucifer, rust ( Puccinia allii ) of Welsh onion, purple stain ( Cercospora kikuchii ), sphaceloma scab ( Elsinoe glycines ) and melanose ( Diaporthe phaseolorum var . sajae ) of soybean, anthracnose ( Collectotrichum lindemuthianum ) of kidney bean, early leaf spot ( Mycosphaerella personatum ) and late leaf spot ( Cercospora arachidicola ) of peanut, powdery mildew ( Erysiphe pisi ) and downy mildew ( Peronospora pisi ) of garden pea, downy mildew ( Peronospora viciae ) and late blight ( Phytophthora nicotianae ) of broad bean, early blight ( Alternaria solani ) and late blight ( Phytophthora infestans ) of potato, powdery mildew ( Sphaerotheca humuli ) and late blight ( Phytophthora nicotianae ) of strawberry, net blister blight ( Exobasidium reticulatum ) and white scab ( Elsinoe leucospila ) of tea, brown spot ( Alternaria longipes ), powdery mildew ( Erysiphe cichoracearum ), anthracnose ( Collectotrichum tabacum ) and late blight ( Phytophthora parasitica ) of tobacco, cercospora leaf spot ( Cercospora beticola ) of beet, black spot ( Diplocarpon rosae ), powdery mildew ( Sphaerotheca pannosa ) and late blight ( Phytophthora megasperma ) of rose, leaf blight ( Septoria chrysanthemiindici ) and white rust ( Puccinia horiana ) of chrysanthemum, and gray mold ( Botrytis cinerea ) and sclerotinia rot ( Sclerotinia sclerotiorum ) of various crops. In the fungicidal composition of the present invention, a mixing ratio of Compound (I) and Compound (II) is not limited. The amount of at least one compound selected from azole compounds, cyclic amine compounds, N-(3,5-dichlorophenyl)imide compounds, anilinopyrimidine compounds, cyanopyrrole compounds, benzimidazole compounds and fluazinam is usually in a range of 0.01 to 100 parts by weight, preferably 0.05 to 50 parts by weight based on 1 part by weight of Compound (I). The amount of thiram is usually in a range of 0.01 to 1000 parts by weight, preferably 0.1 to 500 parts by weight based on 1 part by weight of Compound (I). The amount of sulfur is usually in a range of 1 to 5000 parts by weight, preferably 5 to 1000 parts by weight based on 1 part by weight of Compound (I). The fungicidal composition of the present invention can be used merely by mixing Compound (I) and Compound (II). However, the fungicidal composition of the present invention is usually used by formulating into preparations such as a water dispersible powder, suspension, granule, dry-flowable agent, emulsifiable concentrate, liquid formulation, oil solution, smoking agent, aerosol agent and microcapsule, by mixing Compound (I) and Compound (II), mixing the mixture with a solid carrier, liquid carrier and/or gaseous carrier and, if necessary, adding thereto an adjuvant for preparations such as a surfactant, adhesive agent, dispersing agent and stabilizing agent. Alternatively, the fungicidal composition of the present invention is used by formulating Compound (I) and Compound (II) into preparations separately, diluting each preparation with water, if necessary, and mixing both preparations. The total amount of the active ingredients compounds contained in these preparations is usually 0.1 to 99% by weight, preferably 0.2 to 90% by weight. Examples of the solid carrier are pulverized or particulate clay (such as kaolin clay, diatomaceous earth, synthetic hydrated silicon oxide, attapulgite clay, bentonite and acid clay), talcs, other inorganic minerals (such as sericite, quartz powder, sulfur powder, activated carbon, calcium carbonate and hydrated silica), urea and salts for chemical fertilizer (such as ammonium sulfate, ammonium phosphate, ammonium nitrate, and ammonium chloride). Examples of the liquid carrier are water, alcohols (such as methanol and ethanol), ketones (such as acetone, methyl ethyl ketone and cyclohexanone), aromatic hydrocarbons (such as benzene, toluene, xylene, ethylbenzene and methylnaphthalene), aliphatic hydrocarbons (such as hexane and kerosene), esters (such as ethyl acetate and butyl acetate), nitriles (such as acetonitrile and isobutyronitrile), ethers (such as dioxane and diisopropyl ether), acid amides (such as dimethylformamide and dimethylacetamide), halogenated hydrocarbons (such as dichloroethane, trichloroethylene and carbon tetrachloride). Examples of the gaseous carrier are butane gas, carbonic acid gas and fluorocarbon gas. Examples of the surfactant are alkylsulfuric esters, alkylsulfonate, alkylarylsulfonate, alkyl aryl ethers and their polyoxyethylene compounds, polyethylene glycol ether, multivalent alcohol esters and sugar alcohol derivatives. Examples of the adhesive agent and the dispersing agent are casein, gelatin, polysaccharides (such as starch, acacia, cellulose derivative and alginic acid), lignin derivative, bentonite, sugars, and synthetic water-soluble polymers (polyvinyl alcohol, polyvinyl pyrrolidone and polyacrylic acid). Examples of the stabilizing agent are PAP (acid isopropyl phosphate), BHT (2,6-di-tert-butyl-4-methylphenol), BHA (mixture of 2-tert-butyl-4-methoxyphenol and 3-tert-butyl-4-methoxyphenol), vegetable oil, mineral oil, and fatty acids or esters thereof. The above-described preparations are applied to plants or soil as they are or by diluting with water or the like. When the preparations are, applied to soil, they may be sprayed to the surface of the soil or may be used by applying in admixture with the soil. Alternatively, the preparations may be applied by various methods such as seed treatment method add the ULV method. When the preparations are used as a seed treating agent, they are used by seed coating treatment, seed soaking treatment, seed spraying treatment or the like. The fungicidal composition of the present invention may be used together with other microbicidal agents, insecticides, acaricides, nematicides, herbicides, seed disinfectant, fertilizers, soil conditioners and the like. The amount of application of the fungicidal composition of the present invention depends upon the kind of compound used as the active ingredient compound, the mixing ratio of Compound (I) and Compound (II), weather conditions, preparation form, application time, application method, application place, subject disease damage, subject crop and the like. The total amount of the active ingredients is usually 0.001 to 1000g/are, preferably 0.1 to 100g/are. When an emulsifiable concentrate, a water dispersible powder, suspension, liquid formulation or the like is applied by diluting, for example, with water, the application concentration is usually 0.0001 to 1% by weight, preferably 0.001 to 0.5% by weight. Granules, powders or the like are applied as they are without dilution. For seed treatment, the total amount of active ingredient to be applied is usually 0.001 to 50g/kg seed, preferably 0.01 to 10g/kg seed. The following Preparation Examples and Test Examples illustrate the present invention in detail but are not to be construed to limit the scope thereof. "Part" means "part by weight" unless otherwise indicated. Preparation Example 1 One part of Compound (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig) or (Ih); 5 parts of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusilazole, diniconazole, bromuconazole, epoxyconazole, difenconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, fenbuconazole, hexaconazole, fluquinconazole, triticonazole, bitertanol, imazalil, flutriafol, fenpropimorph, tridemorph, fenpropidin, procymidone, vinclozolin, iprodione, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, carbendazim, benomyl, thiophanate-methyl, fluazinam, thiram or sulfur: one part of synthetic hydrated silicon oxide; 2 parts of calcium lignin sulfonate; 30 parts of bentonite and 61 parts of kaolin clay are well ground and mixed, water is added thereto for thorough kneading, followed by granulation and drying to obtain granules. Preparation Example 2 5 Parts of Compound (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig) or (Ih); 5 parts of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusilazole, diniconazole, bromuconazole, epoxyconazole, difenconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, fenbuconazole, hexaconazole, fluquinconazole, triticonazole, bitertanol, imazalil, flutriafol, fenpropimorph, tridemorph, fenpropidin, procymidone, vinclozolin, iprodione, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, carbendazim, benomyl, thiophanate-methyl, fluazinam, thiram or sulfur; one part of synthetic hydrated silicon oxide; 2 parts of calcium lignin sulfonate; 30 parts of bentonite and 57 parts of kaolin clay are well ground and mixed, water is added thereto for thorough kneading, followed by granulation and drying to obtain granules. Preparation Example 3 0.5 Part of Compound (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig) or (Ih); 2.5 parts of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusilazole, diniconazole, bromuconazole, epoxyconazole, difenconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, fenbuconazole, hexaconazole, fluquinconazole, triticonazole, bitertanol, imazalil, flutriafol, fenpropimorph, tridemorph, fenpropidin, procymidone, vinclozolin, iprodione, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, carbendazim, benomyl, thiophanate-methyl, fluazinam, thiram or sulfur; 86 parts of kaolin clay and 11 parts of talc are well ground and mixed to obtain powders. Preparation Example 4 5 Parts of Compound (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig) or (Ih); 25 parts of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusilazole, diniconazole, bromuconazole, epoxyconazole, difenconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, fenbuconazole, hexaconazole, fluquinconazole, triticonazole, bitertanol, imazalil, flutriafol, fenpropimorph, tridemorph, fenpropidin, procymidone, vinclozolin, iprodione, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, carbendazim, benomyl, thiophanate-methyl, fluazinam, thiram or sulfur; 3 parts of polyoxyethylene sorbitan monooleate; 3 parts of carboxymethyl cellulose and 64 parts of water are mixed and wet-ground to the particle size of less than 5 microns to obtain suspensions. Preparation Example 5 10 Parts of Compound (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig) or (Ih); 50 parts of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusilazole, diniconazole, bromuconazole, epoxyconazole, difenconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, fenbuconazole, hexaconazole, fluquinconazole, triticonazole, bitertanol, imazalil, flutriafol, fenpropimorph, tridemorph, fenpropidin, procymidone, vinclozolin, iprodione, pyrimethanil, mepanipyrim, cyprodinil, fludioxonil, fenpiclonil, carbendazim, benomyl, thiophanate-methyl, fluazinam, thiram or sulfur; 3 parts of calcium lignin sulfonate; 2 parts of sodium lauryl sulfate and 35 parts of synthetic hydrated silicon oxide are well ground and mixed to obtain water dispersible powders. The following Test Examples indicate that the fungicidal composition of the present invention has excellent vegetable disease damage controlling activity. The controlling effect, which is expected when treatment is carried out by using a mixture of the given two kinds of active ingredient compounds, is generally calculated according to the following Colby equation. E = X+Y - X x Y 100 X: Controlling value (%) when treatment is carried out by using an active ingredient compound A at the concentration of m ppm Y: Controlling value (%) when treatment is carried out by using an active ingredient compound B at the concentration of n ppm E: Controlling value (%) when treatment is carried out by using an active ingredient compound A at the concentration of m ppm and an active ingredient compound B at the concentration of n ppm (hereinafter referred to as "expected controlling value") If the controlling value (%) when treatment is carried out by using a combination of two kinds of active ingredients is greater than the expected controlling value (%) it can be said that there is a synergistic effect in the combination of those compounds. Test Example 1 Wheat rust disease controlling test (preventive effect) Sandy loam was filled into a plastic pot, wheat (Norin No. 73) was seeded thereto and the wheat was grown for 10 days in a greenhouse. A test preparation, which had been formulated into a water dispersible powder according to Preparation Example 5, was diluted with water to a predetermined concentration. The diluted test preparation was sprayed to foliage of the wheat seedlings which had developed the second to third true leaves so as to effectively attach to the leaf. After air drying, the seedling was inoculated with spore of wheat rust, placed in darkness under high humidity at 23 °C for one day and then grown for 6 days under illumination. The severity of disease (%) was investigated and the actual controlling value (%) was obtained according to the following equation. Controlling value (%) = {[Severity of non-treated plant (%) - severity of treated plant (%)]/[severity of non-treated plant (%)]} X 100 The results are shown in Table 2 Test compound Concentration of active ingredient (ppm) Actual controlling value (%) Expected controlling value (%) (Ib)+epoxyconazole 0.8+0.1 100 80 (Id)+epoxyconazole 0.8+0.1 100 86 (If)+epoxyconazole 0.8+0.1 100 80 (Ib)+tebuconazole 0.8+0.1 100 75 (Id)+tebuconazole 0.8+0.1 100 83 (If)+tebuconazole 0.8+0.1 100 75 (Ib)+fenpropimorph 0.8+25 100 80 (Id)+fenpropimorph 0.8+25 100 86 (If)+fenpropimorph 0.8+25 100 75 (Ib) 0.8 50 - (Id) 0.8 65 - (If) 0.8 50 - Epoxyconazole 0.1 60 - Tebuconazole 0.1 50 - Fenpropimorph 25 60 - Test Example 2 Pea sclerotinia rot controlling test (preventive effect) Sandy loam was filled into a plastic pot, pea (Alaska) was seeded thereto and the pea was grown for 10 days in a greenhouse. A test preparation, which had been formulated into a suspension according to Preparation Example 4, was diluted with water to a predetermined concentration. The diluted test preparation was sprayed to foliage of the pea seedling so as to effectively attach to the leaf plane. After air drying, hypha and sclerotium of sclerotinia rot were mixed with an artificial soil, the mixture was placed at the root of the plant to inoculate the plant. After inoculation, the seedling was placed in a greenhouse at 23 °C for 2 days. The severity of disease (%) was investigated and the actual controlling value (%) was obtained according to the above equation. The results are shown in Table 3 Test compound Concentration of active ingredient (ppm) Actual controlling value (%) Expected controlling value (%) (Ib)+procymidone 250+125 90 63 (Ie)+procymidone 250+125 85 63 (Ib)+pyrimethanil 250+200 75 52 (Ie)+pyrimethanil 250+200 73 52 (Ib)+fludioxonil 250+100 78 58 (Ie)+fludioxonil 250+100 75 58 (Ib)+benomyl 250+100 85 60 (Ie)+benomyl 250+100 85 60 (Ib)+fluazinam 250+125 83 60 (Ie)+fluazinam 250+125 80 60 (Ib)+thiram 250+500 70 52 (Ie)+thiram 250+500 70 52 (Ib) 250 20 - (Ie) 250 20 - Procymidone 125 54 - Pyrimethanil 200 40 - Fludioxonil 100 48 - Benomyl 100 50 - Fluazinam 125 50 - Thiram 500 40 - Test Example 3 Peanut early leaf spot disease controlling test (preventive effect) Sandy loam was filled into a plastic pot, peanut ( Chiba handachisei ) was seeded thereto and the peanut was grown for 20 days in a greenhouse. A test preparation, which had been formulated into a water dispersible powder according to Preparation Example 5, was diluted with water to a predetermined concentration. The diluted test preparation was sprayed to foliage of the peanut seedling so as to effectively attach to the leaf. After air drying, the seedling was inoculated with spores of peanut early leaf spot, placed under high humidity at 27 °C for 7 days and further grown at 27 °C for 7 days. The severity of disease (%) was investigated and the actual controlling value (%) was obtained according to the above equation. The results are shown in Table 4 Test compound Concentration of active ingredient (ppm) Actual controlling value (%) Expected controlling value (%) (Ia)+tebuconazole 3.1+3.1 100 72 (Ib)+tebuconazole 3.1+3.1 100 79 (Ic)+tebuconazole 3.1+3.1 90 65 (Ih)+tebuconazole 3.1+3.1 100 79 (Ia)+diniconazole 3.1+1 100 76 (Ib)+diniconazole 3.1+1 100 82 (Ic)+diniconzaole 3.1+1 95 70 (Ih)+diniconazole 3.1+1 100 82 (Ia) 3.1 60 - (Ib) 3.1 70 - (Ic) 3.1 50 - (Ih) 3.1 70 - Tebuconazole 3.1 30 - Diniconazole 1 40 - Test Example 4 Vine powdery mildew controlling test (preventive effect) One root of vine (Berry A) was planted in a plastic pot filled with sandy loam. A test preparation, which had been formulated into a water dispersible powder according to Preparation Example 5, was diluted with water to a predetermined concentration. The diluted test preparation was sprayed to foliage of the vine seedling, when the fourth leaf had developed, so as to effectively attach to the leaf plane. After air drying, the leaf was inoculated by spraying a solution of spores of vine powdery mildew (2 x 10 6 /ml). After inoculation, the vine was cultivated at 24 °C for three weeks. The severity of disease (%) was investigated and the actual controlling value (%) was obtained according to the above equation. The results thereof are shown in Table 5. Test compound Concentration of active ingredient (ppm) Actual controlling value (%) Expected controlling value (%) (Ia)+flusilazole 1+0.2 100 87 (Ib)+flusilazole 1+0.2 100 88 (Ig)+flusilazole 1+0.2 100 87 (Ia)+diniconazole 1+0.1 100 85 (Ib)+diniconazole 1+0.1 100 88 (Ig)+diniconazole 1+0.1 100 85 (Ia)+sulfur 1+250 100 79 (Ib)+sulfur 1+250 100 83 (Ig)+sulfur 1+250 100 79 (Ia) 1 70 - (Ib) 1 75 - (Ig) 1 70 - Flusilazole 0.2 55 - Diniconazole 0.1 50 - Sulfur 250 30 - The following Preparation Example illustrates the preparation of Compound (I) used in the present invention Reference Preparation Example [Preparation of Compound (Ie)] Carbon disulfide (2.0g, 26mmol) was added to a mixture of 4-ethoxy-3-fluoroaniline (2.7g, 17mmol) and triethylamine (4.0g, 40mmol) while stirring. The mixture was stirred at room temperature for 10 hours, N,N-dimethylformamide (30ml) was added thereto and methyl iodide (2.2g, 16mmol) was added dropwise. The mixture was stirred at room temperature for 30 minutes and dilute hydrochloric acid was added thereto, followed by extraction with diethyl ether. The organic layer was washed with a saturated sodium chloride solution, dried with anhydrous sodium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography (elution solvent; hexane:ethyl acetate=4:1) to obtain methyl 4-ethoxy-3-fluorophenyldithiocarbamate (2.5g, 10mmol) as crystals. m.p. 108.0 °C Sodium hydride (60% oil dispersion, 60mg, 1.5mmol) was added to a solution of 4-ethoxy-3-fluorophenyldithiocarbamate (0.40g, 1.6mmol) in tetrahydrofuran (20ml) at room temperature. The mixture was stirred at room temperature for 30 minutes and (E)-methoximino-2-(2-bromomethylphenyl)-N-methylacetamide (0.42g, 1.5mmol) was added thereto. The mixture was stirred at room temperature for 30 minutes and water was added thereto, followed by extraction with ethyl acetate. The organic layer was dried with anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography (elution solvent; hexane:ethyl acetate=1:1) to obtain (E)-2-methoximino-2-[2-(4-ethoxy-3-fluorophenylimino)(methylthio)methylthiophenyl]-N-methylacetamide (0.60g, 1.3mmol) as an oil. 1 H-NMR (CDCl 3 /TMS, δ (ppm)) 1.26 (3H, t, J=7.1Hz), 2.45 (3H, s), 2.88 (3H, d, J=4.6Hz), 2.95 (3H, s), 4.12 (2H, q, J=7.1Hz), 4.22 (2H, br s), 6.55-7.50 (8H, m) Some NMR data of the other compounds used in the present invention are shown below. Compound (Ia): 1 H-NMR (CDCl 3 /TMS, δ (ppm)) 2.46 (3H, s), 2.89 (3H, d, J=5.0Hz), 3.95 (3H, s), 4.21 (2H, br s), 6.51-7.46 (8H, m) Compound (If): 1 H-NMR (CDCl 3 /TMS, δ (ppm)) 2.31 (3H,s), 2.44 (3H,s), 2.86 (3H, d, J=5.0Hz), 3.95 (3H, s), 4.22 (2H, br s), 6.72-7.49 (9H, m)

Claims: A fungicidal composition comprising as active ingredients: (I) a dithiocarbonimide compound represented by the general formula: wherein Z represents a CH group or nitrogen, R 1 and R 2 are the same or different and represent hydrogen, a C 1 -C 6 alkyl group, halogen, a C 1 -C 6 alkoxy group, a C 1 -C 6 haloalkyl group or a C 1 -C 6 haloalkoxy group, or R 1 and R 2 are taken together to form a methylenedioxy group optionally substituted with fluorine, and (II) at least one compound selected from the group consisting of azole fungicidal compounds, cyclic amine fungicidal compounds, N-(3,5-dichlorophenyl)imide fungicidal compounds, anilinopyrimidine fungicidal compounds, cyanopyrrole fungicidal compounds, benzimidazole fungicidal compounds, fluazinam, thiram and sulfur, the compounds (I) and (II) being in an amount producing a synergistic fungicidal effect. A fungicidal composition comprising as active ingredients (I) a dithiocarbonimide compound and a compound (II) as defined in claim 1 the compounds(I) and (II) being in a ratio or compound (I) : compound (II) = 1 : 0.01 to 100 parts by weight in case that the compound (II) is at least one compound selected from the group consisting of azole fungicidal compounds, cyclic amine fungicidal compounds, N-(3,5-dichlorophenyl)imide fungicidal compounds, anilinopyrimidine fungicidal compounds, cyanopyrrole fungicidal compounds, benzimidazole fungicidal compounds and fluazinam, compound (I) : compound (II) = 1 : 0.01 to 1000 parts by weight in case that the compound (II) is thiram, or compound (I) : compound (II) = 1 : 1 to 5000 parts by weight in case that the compound (II) is sulfur. The composition according to claim 1 or 2 wherein the azole compound is at least one member selected from the group consisting of propiconazole, triadimenol, prochloraz, penconazole, tebuconazole, flusidazole, diniconazole, bromuconazole, epoxyconazole, difenoconazole, cyproconazole, metconazole, triflumizole, tetraconazole, myclobutanil, hexaconazole, fenbuconazole, fluquinconazole, triticonazole, bitertanol, imazalil and flutriafol, the cyclic amine fungicidal compound is at least one member selected from the group consisting of fenpropimorph, tridemorph and fenpropidin, the N-(3,5-dichlorophenyl)imide fungicidal compound is at least one member selected from the group consisting of procymidone, vinclozolin and iprodione, the anilinopyrimidine fungicidal compound is at least one member selected from the group consisting of pyrimethanil, mepanipyrim and cyprodinil, the cyanopyrrole fungicidal compound is at least one member selected from the group consisting of fludioxonil and fenpiclonil, and the benzimidazole fungicidal compound is at least one member selected from the group consisting of carbendazim, benomyl and thiophanate-methyl. A method for controlling agricultural or horticultural fungi, which comprises applying the composition as defined in claims 1 - 3. Use of a composition as defined in claims 1 - 3 for controlling agricultural or horticultural fungi.

Inventors: MATSUNAGA REI, MATSUNAGA, REI
Applicants: SUMITOMO CHEMICAL CO, SUMITOMO CHEMICAL COMPANY, LIMITED
Application year: 1997
Main classification: A01N47
IPC codes: A01N59, A01N47, A01N37