JP5173591B2 - Agricultural / horticultural fungicide composition and method for controlling plant diseases - Google Patents

Description

  The present invention relates to a fungicide composition for agricultural and horticultural use having a plant disease control effect, particularly an effect of preventing and / or treating a plant disease, and a method for controlling a plant disease using the composition.

  Patent Document 1 describes a mixture of amisulbrom and four other fungicides. Polyoxins are antibiotics described in Patent Document 2. On the other hand, flutolanil is a compound described in Patent Document 3 as o-trifluoromethyl-m′-isopropoxybenzoic acid anilide. However, these publications do not describe that the combination of active ingredient compounds in the agricultural and horticultural fungicide composition of the present invention has a synergistic effect for controlling plant diseases.

International Publication WO03 / 53145 Japanese Patent Publication No.42-10941 Japanese Patent Publication No. 56-45907

  Amisulbrom is not practically sufficient for plant diseases in some application situations because its effect on plant diseases is not sufficient for certain plant diseases or its residual effect is relatively short. In some cases, it exhibits only a controlling effect.

  As a result of researches to solve the above-mentioned problems, the present inventors may expect to use a mixture of polyoxin and / or flutolanil with amisulbromine as compared with the case where each drug is used alone. The present invention has been completed by obtaining the knowledge that an even more excellent plant disease control effect (synergistic effect) can be obtained.

  That is, the present invention relates to an agricultural and horticultural fungicide composition comprising (a) amisulbrom and (b) polyoxin and / or flutolanil as active ingredients. The present invention also relates to a method for controlling plant diseases, which comprises applying the agricultural and horticultural fungicide composition to plants.

  In the present invention, amisulbrom used as the active ingredient (a) is IUPAC name 3- (3-bromo-6-fluoro-2-methylindol-1-ylsulfonyl) -N, N-dimethyl-1,2,4- It is a compound known as triazole-1-sulfonamide.

The polyoxin used as the active ingredient (b) in the present invention is a substance described in pages 795-797 of The Pesticide Manual (13th edition; BRITISH CROP PROTECTION COUNCIL). Polyoxin is not a single compound but a complex of a series of compounds having chemical structures similar to each other, and those containing polyoxin B as the main component and those containing polyoxin D as the main component are used as bactericides. . Any of them can be used in the present invention.
Flutolanil used as the active ingredient (b) in the present invention is a compound known as IUPAC name α, α, α-trifluoro-3′-isopropoxy-o-toluanilide.

  The agricultural and horticultural fungicide composition characterized by containing the amisulbrom and (b) polyoxin and / or flutolanil as an active ingredient is a cultivated crop that is infected with or may be harmful to harmful fungi, for example, Sugar beet such as cucumber, tomato and eggplant; cereals such as rice and wheat; fruit trees such as legumes, apples, pears, grapes, citrus; and the like; Mildew, mildew, anthracnose, gray mold, green mold, black spot, spotted leaf disease, spot bacterial disease, black spot, black spot, late rot, plague, ring rot, rice blast, It is suitable for controlling diseases such as coat blight, seedling blight, and silkworm, and is also caused by plant pathogens such as Fusarium, Rhizoctonia, Verticillium, Plasmodiophora, and Psium. Wake up It shows an excellent control effect on the soil-borne diseases. The agricultural and horticultural fungicide composition of the present invention has a long residual effect, excellent osmotic transferability, and has a preventive effect and / or a therapeutic effect, and is particularly excellent in a preventive effect.

  The agricultural and horticultural fungicide composition of the present invention specifically includes rice blast disease; rice sheath blight; rice seedling blight; cucumber anthracnose; cucumber, melon, cabbage, cabbage, onion, pumpkin, grape Downy mildew; wheat, barley, cucumber powdery mildew; potato, pepper, pepper, watermelon, pumpkin, tobacco, tomato plague; wheat septoria disease; tomato ringspot; citrus sunspot; citrus green mold; Pear scab; apple spotted leaf blight; onion white plague; brown rot of watermelon; various gray molds, mycorrhizal disease, rust, spotted bacterial diseases; Fusarium, Psium, Rhizoctonia, Verti Excellent control effect against various soil diseases caused by plant pathogens such as silicium. Moreover, the control effect which was excellent also with respect to the disease by Plasmodiohora sp. More specifically, the composition comprises: potato, pepper, pepper, watermelon, pumpkin, tobacco, tomato plague; cucumber, melon, cabbage, Chinese cabbage, onion, pumpkin, grape downy mildew; turf picium disease, red It shows a particularly excellent control effect against diseases caused by burning disease, leaf rot (brown patch, large patch) and the like.

  The active ingredient constituting the agricultural and horticultural fungicide composition according to the present invention is blended with various adjuvants as in the case of conventional agricultural chemical preparations, and emulsions, powders, wettable powders, liquids, granules, suspension preparations, etc. Can be formulated into various forms. At that time, the compound of the formula (I) and polyoxin and / or flutolanil may be mixed and formulated together, or may be separately formulated and mixed. In actual use of these preparations, they can be used as they are or after diluting to a predetermined concentration with a diluent such as water. Examples of the auxiliary agent include carriers, emulsifiers, suspending agents, thickeners, stabilizers, dispersants, spreading agents, wetting agents, penetrating agents, antifreezing agents, antifoaming agents, and the like. What is necessary is just to add suitably. Examples of the carrier include a solid carrier and a liquid carrier. Examples of the solid carrier include starch, sugar, cellulose powder, cyclodextrin, activated carbon, soybean powder, wheat flour, rice bran powder, wood powder, fish powder, and milk powder. Talc, kaolin, bentonite, organic bentonite, calcium carbonate, calcium sulfate, sodium bicarbonate, zeolite, diatomaceous earth, white carbon, clay, alumina, silica, sulfur powder, mineral powder such as slaked lime, etc., liquid carrier Examples include: water; vegetable oils such as soybean oil and cottonseed oil; animal oils such as beef tallow and whale oil; alcohols such as ethyl alcohol and ethylene glycol; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and isophorone; ethers such as dioxane and tetrahydrofuran Class: Kerosene, light Aliphatic hydrocarbons such as liquid paraffin; aromatic hydrocarbons such as toluene, xylene, trimethylbenzene, tetramethylbenzene, cyclohexane and solvent naphtha; halogenated hydrocarbons such as chloroform and chlorobenzene; acids such as dimethylformamide Amides; Esters such as ethyl acetate and glycerin esters of fatty acids; Nitriles such as acetonitrile; Sulfur-containing compounds such as dimethyl sulfoxide or N-methyl-2-pyrrolidone, N, N-dimethylformamide, N, N- Examples include dimethylacetamide. Examples of the spreading agent include sodium alkyl sulfate, sodium alkylbenzene sulfonate, sodium lignin sulfonate, polyoxyethylene glycol alkyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkylaryl ether, polyoxyethylene sorbitan fatty acid ester, and the like. .

  In the method of the present invention, other agricultural chemicals such as fungicides, insecticides, acaricides, nematicides, soil insecticides, antiviral agents, attractants, herbicides, plant growth preparations, etc. are mixed. In this case, a better effect may be exhibited.

In the above-mentioned other agricultural chemicals, as an active ingredient compound (generic name; including some pending applications), anilinopyrimidine such as mepanipyrim, pyrimethanil, cyprodinil Naminic compounds;
Pyridinamine compounds such as fluazinam;
Triadimefon, bitertanol, triflumizole, etaconazole, propiconazole, penconazole, flusilazole, microbutanil, cyproconazole cyproconazole), tebuconazole, hexaconazole, furconazole-cis, prochloraz, metconazole, epoxiconazole, tetraconazole, o Oxpoconazole fumarate, sipconazole, prothioconazole, triadimenol, flutriafol, difenoconazole , Fluquinconazole, fenbuconazole, bromuconazole, diniconazole, tricyclazole, probenazole, cimeconazole, pefurazoate, ipconazole, ipconazole ), Azole compounds such as imibenconazole;
Quinoxaline compounds such as quinomethionate;
Dithiocarbamate compounds such as maneb, zineb, mancozeb, polycarbamate, metiram, propineb, thiram;
Organochlorine compounds such as fthalide, chlorothalonil, quintozene;
Imidazole compounds such as benomyl, thiophanate-methyl, carbendazim, thiabendazole, fuberiazole, cyazofamid;
Cyanoacetamide compounds such as cymoxanil;
Metalaxyl, metalaxyl-M, mefenoxam, oxadixyl, offurace, benalaxyl, benalaxyl-M, also known as kiralaxyl, chiax ), Phenylamide compounds such as furalaxyl, cyprofuram;
Sulfenic acid compounds such as dichlofluanid;
Copper-based compounds such as cupric hydroxide and oxine copper;
Isoxazole compounds such as hymexazol;
Fosetyl-aluminum (fosetyl-Al), Turkish phosmethyl (tolcofos-Methyl), S-benzyl O, O-diisopropyl phosphorothioate, O-ethyl S, S-diphenyl phosphorodithioate, aluminum ethyl hydrogen phosphonate, edifenphos, Organophosphorus compounds such as iprobenfos;
N-halogenothioalkyl compounds such as captan, captafol, folpet;
Dicarboximide compounds such as procymidone, iprodione, vinclozolin;
Benzanilide compounds such as mepronil, zoxamide, tiadinil;
Anilide compounds such as carboxin, oxycarboxin, thifluzamide, penthiopyrad, boscalid, bixafen, fluopyram, isothianil;
Piperazine compounds such as triforine;
Pyridine compounds such as pyrifenox;
Carbinol compounds such as fenarimol, flutriafol;
Piperidine compounds such as fenpropidin;
Morpholine compounds such as fenpropimorph, spiroxamine, and triridemorph;
Organotin compounds such as fentin hydroxide and fentin acetate;
Urea-based compounds such as pencycuron;
Synamic acid compounds such as dimethomorph, flumorph;
Phenyl carbamate compounds such as dietofencarb;
Cyanopyrrole compounds such as fludioxonil and fenpiclonil;
Azoxystrobin, kresoxim-methyl, metominofen, trifloxystrobin, picoxystrobin, oryzastrobin, dimoxystrobin , Strobilurin compounds such as pyraclostrobin, fluoxastrobin;
Oxazolidinone compounds such as famoxadone;
Thiazole carboxamide compounds such as ethaboxam;
Silylamide compounds such as silthiopham;
Amino acid amide carbamate compounds such as iprovalicarb, benchthiavalicarb-isopropyl, valiphenal;
Imidazolidine compounds such as fenamidone;
Hydroxyanilide compounds such as fenhexamid;
Benzenesulfonamide compounds such as flusulfamid;
Oxime ether compounds such as cyflufenamid;
Phenoxyamide compounds such as fenoxanil;
Atraquinone compounds;
Crotonic acid compounds;
Antibiotics such as validamycin, kasugamycin;
Guanidine compounds such as iminoctadine;
Other compounds include pyribencarb, isoprothiolane, pyroquilon, diclomezine, quinoxyfen, propamocarb hydrochloride, chloropicrin, dazomet, and sodium metam Metam-sodium, nicobifen, metrafenone, UBF-307, diclocymet, proquinazid, Syngenta 446510 (mandipropamid, dipromandamid), fluopicolide, carpropamid, CF1 , BCM061, BCM062, AF-0201 and the like.

In the above-mentioned other pesticides, as an insecticide, acaricide, or nematicide, that is, an active ingredient compound of a pesticide (generic name; including some pending applications), for example, profenofos, dichlorvos ( dichlorvos, fenamiphos, fenitrothion, EPN, diazinon, chlorpyrifos-methyl, acephate, prothiofos, fothhiazate, phosphocarb, phosphocarb, cadusafos), disulfoton, chlorpyrifos, demeton-S-methyl, dimethoate, metamidophos, imicyafos, isoxathion, isoxathion, isofenphos , Etion, etrim Etrimfos, quinalphos, dimethylvinphos, sulprofos, thiometon, bamidothion, pyraclofos, pyridaphenthion, pirimiphos-methyl, propiphos-methyl (propaphos), hosalon (phosalone), formothion, malathion, tetrachlovinphos, chlorfenvinphos, cyanophos, trichlorfon, methidathion, Phenthoate, ESP, azinphos-methyl, fenthion, heptenophos, methoxychlor, parathion, monocrotophos, parathion-methyl, terbufos (Terbufos), Phospha Dong (phospamidon), phosmet (phosmet), organic phosphoric acid ester compounds such as folate (phorate);
Carbaryl, propoxur, aldicarb, carbofuran, thiodicarb, methomyl, oxamyl, ethiofencarb, pirimicarb, fenobucarb, fenobucarb Carbamates such as carbosulfan, benfuracarb, bendiocarb, furathiocab, isoprocarb, metolcarb, xylylcarb, XMC, fenothiocarb Compound;
Nereistoxin derivatives such as cartap, thiocyclam, bensultap, sodium thiosultap-sodium;
Organochlorine compounds such as dicophor, tetradifon, endosulfan, dienochlor, dieldrin;
Organometallic compounds such as fenbutatin oxide and cyhexatin;
Fenvalerate, permethrin, cypermethrin, deltamethrin, cyhalothrin, tefluthrin, etofenprox, flufenprox, fenpropatrin ( fenpropathrin), bifenthrin, imidate, cyfluthrin, flucythrinate, fluvalinate, cycloprothrin, lambda-cyhalothrin, pyrethrin ( pyrethrins), esfenvalerate, tetramethrin, resmethrin, protrifenbute, zeta-cypermethrin, acrinathrin, alpha sipe Lumetrin (alpha-cypermethrin), allethrin, gamma-cyhalothrin (gamma-cyhalothrin), theta-cypermethrin (theta-cypermethrin), tau-fluvalinate, tralomethrin, profluthrin, Pyrethroid compounds such as beta-cypermethrin, beta-cyfluthrin, metofluthrin;
Diflubenzuron, chlorfluazuron, teflubenzuron, flufenoxuron, lufenuron, novaluron, triflumuron, hexaflumuron, hexaflumuron Benzoylurea compounds such as (bistrifluron), nobifluuron, fluazuron;
Juvenile hormone-like compounds such as metoprene, pyriproxyfen, fenoxycarb, diofenolan;
Pyridazinone compounds such as pyridaben;
Pyrazole compounds such as fenpyroximate, fipronil, tebufenpyrad, ethiprole, tolfenpyrad, acetoprole, pyrafluprole, pyriprole;
Imidacloprid, nitenpyram, acetamiprid, acetamiprid, thiacloprid, thiamethoxam, clothianidin, nidinotefuran, dinotefuranoid, dinotefuranoid
Hydrazine compounds such as tebufenozide, methoxyfenozide, chromafenozide, halofenozide;
Pyridine compounds such as Pyridaryl, flonicamid and the like;
Tetronic acid compounds such as spirodiclofen;
Strobilurin compounds such as fluacrypyrin;
Pyridinamine compounds such as flufenerim;
Dinitro compounds, organic sulfur compounds, urea compounds, triazine compounds, hydrazone compounds, and other compounds include buprofezin, hexythiazox, amitraz, chlordimeform, silafluofen ), Triazamate, pymetrozine, pyrimidifen, chlorfenapyr, indoxacarb, acequinocyl, etoxazole, cyromazine, 1,3-dichloropropene (1,3-dichloropropene), diafenthiuron, benclothiaz, flufenerim, pyridalyl, spirodiclofen, bifenazate (b ifenazate, spirotetramat, propargite, verbutin, spiromesifen, thiazolylcinnanonitrile, amidoflumet, flubendiamide, clofente Clofentezine metaflumizone, chlorantraniliprole, HGW-86, cyflumetofen, cyenopyrafen, pyrifluquinazone, fenazaquin, fluazaquin, pyridaben, pyrid And compounds such as chlorobenzoate, sulfluramid, metaldehyde, ryanodine; AKD-1022, IKA-2000 and the like. Furthermore, Bacillus thuringienses aizawai, Bacillus thuringienses kurstaki, Bacillus thuringienses israelensis, Bacillus thuringienses japonensis, Bacillus thuringienses tenebrionis or crystalline protein toxins produced by Bacillus thuringienses, entomopathogenic fungi, nematode pathogenic fungi, etc. Microbial pesticides, such as avermectin, milbemectin, milbemycin, spinosad, emamectin benzoate, ivermectin, lepimectin, spinetorum, spinetoram, It can also be used in combination with antibiotics such as abamectin and emamectin; natural products such as azadirachtin and rotenone; and repellents such as deet.

  In the agricultural and horticultural fungicide composition of the present invention, an appropriate mixing weight ratio of (a) amisulbrom and (b) polyoxin and / or flutolanil is a synergistic effect when (a) and (b) are combined. The blending ratio is preferably an effective amount (synergistic effective amount) of both of which is expressed, and is generally 1: 10000 to 10000: 1, preferably 1: 1000 to 1000: 1.

  A method for controlling plant diseases in which the agricultural and horticultural fungicide composition of the present invention is applied to plants is also included in the present invention. The concentration of the active ingredient used in the agricultural and horticultural fungicide composition of the present invention varies depending on the conditions such as the target crop, method of use, formulation form, application rate, application time, type of harmful fungus, etc. In the case of foliage treatment or soil irrigation treatment, the active ingredient concentration is usually (a) 0.01 to 1,000 ppm, preferably 0.3 to 500 ppm, and (b) 0.1% polyoxin and / or flutolanil. -10,000 ppm, desirably 0.5-5000 ppm.

  The agricultural and horticultural fungicide composition of the present invention has a stable and high control effect on cultivated crops infected with plant diseases, and plant diseases can be controlled using this composition.

Next, some desirable embodiments of the agricultural and horticultural fungicide composition of the present invention will be exemplified, but these do not limit the present invention.
(1) An agricultural and horticultural fungicide composition comprising (a) amisulbrom and (b) polyoxin and / or flutolanil as active ingredients.
(2) The agricultural and horticultural fungicide composition according to (1), comprising a synergistically effective amount of (a) amisulbrom and (b) polyoxin and / or flutolanil.
(3) The agricultural / horticultural fungicide composition according to (1), wherein the weight ratio of (a) amisulbrom and (b) polyoxin and / or flutolanil is 1: 10000 to 10,000: 1.
(4) The agricultural and horticultural fungicide composition according to (1), wherein the weight ratio of (a) amisulbrom to (b) polyoxin and / or flutolanil is 1: 1000 to 1000: 1.

  Next, although the test example concerning this invention is described, these do not limit this invention.

Test example 1
Pythium spinosum mycelial growth inhibition test The strain used for the test for inhibition of hyphal elongation is pre-cultured at 20 ° C for 2 days in a PSA plate medium. Was placed on a PDA plate medium prepared by diluting to contain a predetermined concentration. After the plate medium was cultured at 20 ° C. for 2 days, hyphal elongation was measured and the inhibition rate was examined.
The results are shown in Table 1.
Moreover, the theoretical value of the inhibition rate was calculated according to Colby's formula and described in parentheses in Table 1. When the experimental value is higher than the theoretical value according to the Colby equation, the agricultural and horticultural fungicide composition of the present invention has a synergistic effect on the control of plant diseases.

Test example 2
Pythium graminicola hyphal elongation inhibitory effect test (1)
The hyphal elongation was measured by the same method as in Test Example 1, the inhibition rate was examined, and the results are shown in Table 2. The average mycelial elongation of the untreated group was 46.5 mm.

Test example 3
Pythium graminicola hyphal elongation inhibitory effect test (2)
The hyphal elongation was measured by the same method as in Test Example 1, the inhibition rate was examined, and the results are shown in Table 3. The average mycelial elongation of the untreated group was 28.0 mm.

  Next, although the formulation example of the composition for pest control of this invention is described, this invention is not limited to these.

Formulation Example 1 (I) Amisulbrom 2 parts by weight, (B) Polyoxin B 10 parts by weight, (C) Sodium naphthalene sulfonate formalin condensate 5 parts by weight, (D) Sodium alkylbenzene sulfonate 5 parts by weight, (E) Clay 78 A wettable powder can be obtained by mixing the above components by weight.

Formulation Example 2 (A) 0.5 part by weight of amisulbrom, (b) 2.5 parts by weight of polyoxin B, (c) 20 parts by weight of calcium carbonate, (d) 77 parts by weight of clay Is obtained.

Formulation Example 3 (I) Kaolin 78 parts by weight (b) β-naphthalenesulfonic acid soda formalin condensate 2 parts by weight (c) Polyoxyethylene alkylaryl sulfate 5 parts by weight (d) Hydrous amorphous silicon dioxide 15 parts by weight or more A mixture of each component and Compound No. 1 and flutolanil are mixed at a weight ratio of 8: 1: 1 to obtain a wettable powder.

Formulation Example 4 (A) Compound No. 1 0.5 parts by weight (b) flutolanil 0.5 parts by weight (c) bentonite 20 parts by weight (d) kaolin 74 parts by weight (e) sodium lignin sulfonate 5 , Mixed and granulated to obtain granules.

Claims (4)

An agricultural and horticultural fungicide composition comprising (a) amisulbrom and (b) polyoxin and / or flutolanil as active ingredients. The agricultural and horticultural fungicide composition according to claim 1, comprising a synergistically effective amount of (a) amisulbrom and (b) polyoxin and / or flutolanil. The agricultural / horticultural fungicide composition according to claim 1, wherein the mixing weight ratio of (a) amisulbrom and (b) polyoxin and / or flutolanil is 1: 100000 to 10000: 1. A method for controlling plant diseases, comprising applying the fungicidal composition for agricultural or horticultural use according to claim 1, 2 or 3 to plants.