Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system

Definitions

• the present invention relates to fungicidal mixtures for controlling rice pathogens, containing as active components
• the invention relates to a method for controlling rice pathogens with mixtures of the compound I with the compound II and the use of the compound I with the compound II for the preparation of such mixtures and agents which contain these mixtures.
• the compound II, 4- [3- (4-tert-butylphenyl) -2-methyl-propyl] -2,6-dimethyl-morpholine, its preparation and its action against harmful fungi is also known from the literature (DE 26 56 747, DE 27 52 096; common name: Fenpropimorph).
• Fenpropimorph has long been established on the market, mainly as a cereal fungicide against mildew and rust diseases caused by Ascomycetes or Basidiomycetes.
• Mixtures of triazolopyrimidine derivatives with fenpropimorph are generally known from EP-A 988 790.
• Compound I is included in the general disclosure of this document, but is not explicitly mentioned. The combination of compound I with fenpropimorph is therefore new.
• the synergistic mixtures known from EP-A 988 790 are fungicidally active against various diseases of cereals, fruits and vegetables, such as. B. powdery mildew on wheat and barley or gray mold on apples.
• a rice fungicide Due to the special cultivation conditions of rice plants, there are significantly different requirements for a rice fungicide than for fungicides that are used in cereal or fruit growing. There are differences in the application method: in addition to the foliar application used in many places, in modern rice cultivation the fungicide is applied directly to the soil or shortly after sowing. The fungicide is absorbed into the plant via the roots and transported in the plant sap in the plant to the parts of the plant to be protected. A high system is therefore essential for rice fungicides. In cereal or fruit growing, on the other hand, the fungicide is usually applied to the leaves or the fruits, so the systemics of the active ingredients play a significantly smaller role in these crops.
• Rhizoctonia solani is the causative agents of the most important diseases of rice plants. Rhizoctonia solani is the only agronomically important pathogen within the Agaricomycetidae subclass. This fungus does not attack the plant via spores like most other fungi, but through a mycelial infection.
• the present invention was based on mixtures which, with a reduced total amount of active ingredients applied, have an improved action against the harmful fungi.
• Fungicides selected from the following group are particularly suitable as further active ingredients in the above sense:
• Acylalanines such as benalaxyl, metalaxyl, ofurace, oxadixyl,
• Amine derivatives such as aldimorph, dodine, dodemorph, fenpropimorph, fenpropidine, guazatine, iminoctadine, spiroxamine, tridemorph,
• Antibiotics such as cycloheximide, griseofulvin, kasugamycin, natamycin, polyoxin or streptomycin, o azoles such as bitertanol, bromocona ⁇ ol, cyprocona ⁇ ol, difenoconazole, dinitrocona- ⁇ ol, epoxiconazole, fenbucona ⁇ ol, fluquiconaol, flutriafolol, flutriafolol , Hexacona- ⁇ ol, Ima ⁇ alil, Ipconazol, Metconazol, Myclobutanil, Penconazol, Propicona ⁇ ol, Proehlora ⁇ , Prothiocona ⁇ ol, Simeconazoi, Tebuconazol, Tetracona ⁇ ol, Triadimefon, Triadimenol, Triflumi ⁇ ol, Triticona Dicarboximide ⁇ such as
• Heterocyclic compounds such as anilazine, boscalid, carbenda ⁇ im, carboxin, oxycarboxin, cyaamidofamid, da ⁇ omet, famoxadon, fenamidon, fenarimol, fuberida ⁇ ol, flutolanil, furametpyr, isoprothiolan, mepronil, nuarimol, picobenzamide, probenamid ⁇ ol, Proquinazid, Pyrifenox, Pyroquilon, Quinoxyfen, Silthiofam, Thiabendazol, Thifluzamid, Thiophanat-methyl, Tiadinil, Tricycla ⁇ ol, Triforine, Copper fungicides such as Bordeaux broth, copper acetate, copper oxychloride, basic copper sulfate,
• Nitrophenyl derivatives such as binapacryl, dinocap, dinobutone, nitrophthal-isopropyl,
• Phenylpyrroles such as fenpiclonil or fludioxonil, sulfur,
• fungicides such as acibenzolar-S-methyl, benthiavalicarb, carpropamide, chlorothalonil, cyflufenamide, cymoxanil, diclomezin, diclocymet, diethofencarb, edifenphos, ethaboxam, fenhexamide, fentin acetate, fenoxanil, namimzone, fluazi, fluazi, fluazi Fosetyl aluminum, phosphorous acid, iprovalicarb, hexachlorobenzene, metrafenone, pencycuron, propamocarb, phthalide, toloclofos-methyl, quintocene, zoxamide,
• Strobilurins such as fluoxastrobin, metominostrobin, orysastrobin, picoxystrobin, pyraclostrobin or trifloxystrobin,
• Sulfenic acid derivatives such as Captafol, Captan, dichlofluanid, Folpet, Tolylfluanid, • Cinnamic acid amides and analogues such as Flumetover.
• a further fungicide III or two fungicides III and IV are added to the compounds I and II.
• fungicides are particularly suitable as components III and IV:
• Amine derivatives such as dodine, dodemorph, fenpropimorph, fenpropidin, iminoctadine,
• Azoles such as bromoconazole, cyproconazole, difenoconazole, dinitroconazole, epoxiconazole, fenbuconazole, fluquiconazole, flusilazole, flutriafol, hexacona ⁇ ol, ipconazole, metcona ⁇ ol, myclobutanil, penconazol, proponazolol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazol, propiconazole, propiconazole, proponazole, propiconazole, , Tetraconazole, triflumi ⁇ ol, triticonazole;
• Heterocyclic compounds such as boscalid, carbendazim, carboxin, cyazofamide, fenarimol, flutolanil, picobenzamide, procinaid, pyrifenox, quinoxyfen, thiophanate methyl;
• Dithiocarbamate such as Maneb, Manco ⁇ eb, Metiram, Thiram;
• Strobilurins such as fluoxastrobin, metominostrobin, orysastrobin, picoxystrobin, pyracostrobin or trifloxystrobin,
• fungicides such as Benthiavalicarb, Ghlorothalonil, Cyflufenamid, Diclofluanid, Fenhexamid, Flua ⁇ inam, Fosetyl, Fosetyl-Aluminum, Phosphorous acid, Iprovalicarb,
• Mixtures of the compounds I and II with a component III are preferred. Mixtures of compounds I and II are particularly preferred.
• the mixtures of the compounds I and II or the simultaneous joint or separate use of the compounds I and the compound II are notable for excellent activity against rice pathogens from the class of Ascomycetes, Deuteromycetes and Basidiomycetes. They can be used for seed treatment, and also as leaf and soil fungicides, preferably compounds I and II are applied by spraying the leaves.
• combination of compounds I and II according to the invention is also suitable for controlling other pathogens, such as, for. B. Septoria and Puccinia species in cereals such as wheat or barley and Alternaria and ßofryfts species in vegetables, fruits and wine.
• pathogens such as, for. B. Septoria and Puccinia species in cereals such as wheat or barley and Alternaria and ßofryfts species in vegetables, fruits and wine.
• the compound I and the compound II can be applied simultaneously together or separately or in succession, the sequence in the case of separate application generally not having any effect on the success of the control.
• the compound I and the compound II are usually used in a weight ratio of 100: 1 to 1: 100, preferably 20: 1 to 1:50, in particular 10: 1 to 1:10.
• Components III and IV are optionally mixed in a ratio of 20: 1 to 1:20 to the compound I.
• the application rates of the mixtures according to the invention are 5 g / ha to 2000 g / ha, preferably 50 to 1500 g / ha, in particular 50 to 750 g / ha.
• the application rates for the compound I are generally from 1 to 1000 g / ha, preferably from 10 to 750 g / ha, in particular from 20 to 500 g / ha.
• the application rates for compound II are generally from 1 to 1000 g / ha, preferably from 10 to 750 g / ha, in particular from 20 to 500 g / ha.
• the separate or joint application of the compounds I and II or the mixtures of the compounds I and II is carried out by spraying or pollinating the seeds, seedlings, plants or soils before or after sowing the plants or before or after emergence of the plants.
• the compounds are preferably applied jointly or separately by applying granules or by dusting the floors.
• the mixtures according to the invention, or the compounds I and II, can be converted into the customary formulations, e.g. Solutions, emulsions, suspensions, dusts, powders, pastes and granules.
• the form of application depends on the respective purpose; in any case, it should ensure a fine and uniform distribution of the compound according to the invention.
• the formulations are prepared in a known manner, e.g. by stretching the active ingredient with solvents and / or carriers, if desired using emulsifiers and dispersants.
• solvents / auxiliaries water, aromatic solvents (e.g. Solvesso products, xylene), paraffins (e.g. petroleum fractions), alcohols (e.g. methanol, butanol, pentanol, benzyl alcohol), ketones (e.g.
• solvent mixtures can also be used, carriers such as natural stone powder (e.g. kaolins, clays, talc, chalk) and synthetic stone powder (e.g. highly disperse silica, silicates); Emulsifiers such as nonionic and anionic emulsifiers (e.g. polyoxyethylene fatty alcohol ethers, alkyl sulfonates and aryl sulfonates) and dispersants such as lignin sulfite liquors and iViethylcellulose.
• natural stone powder e.g. kaolins, clays, talc, chalk
• synthetic stone powder e.g. highly disperse silica, silicates
• Emulsifiers such as nonionic and anionic emulsifiers (e.g. polyoxyethylene fatty alcohol ethers, alkyl sulfonates and aryl sulfonates) and dispersants such as lignin sulfite liquors and
• Suitable surfactants are alkali metal, alkaline earth metal salts, sulfonic acid ammonium salts of lignosulfonic, Naphthalinsulfonklar ⁇ , phenolsulfonic acid, dibutylnaphthalenesulfonic acid, alkylarylsulfonates, alkyl sulfates, alkylsulfonates, fatty alcohol sulfates, fatty acids and sulfated fatty alcohol glycol ethers, furthermore condensates of sulfonated naphthalene and naphthalene derivatives with formaldehyde , Condensation products of naphthalene or naphthalene sulfonic acid with phenol and formaldehyde, polyoxyethylene octylphenol ether, ethoxylated isooctylphenol, octylphenol, nonylphenol, alkylphenol polyglycol ether, tributylphen
• mineral oil fractions from medium to high boiling points such as kerosene or diesel oil, furthermore coal tar oils as well as oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, e.g. Toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, methanol, ethanol, propanol, butanol, cyclohexanol, cyclohexanone, isophorone, strongly polar solvents, e.g. Dimethyl sulfoxide, N-methylpyrrolidone or water into consideration.
• mineral oil fractions from medium to high boiling points such as kerosene or diesel oil
• coal tar oils as well as oils of vegetable or animal origin
• aliphatic, cyclic and aromatic hydrocarbons e.g. Toluene, xylene, paraffin, tetrahydronaphthalene, alkylated
• Powders, materials for broadcasting and dusts can be prepared by mixing or grinding the active substances together with a solid carrier.
• Granules, ⁇ .B. Coating, impregnation and homogeneous granules can be produced by binding the active ingredients to solid carriers.
• Solid carriers are e.g. Mineral earths, such as silica gels, silicates, talc, kaolin, attack clay, limestone, lime, chalk, bolus, loess, clay, dolomite, diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics, fertilizers, e.g. Ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas and vegetable products such as cereal flour, tree bark, wood and nutshell flour, cellulose powder and other solid carriers.
• Mineral earths such as silica gels, silicates, talc, kaolin, attack clay, limestone, lime, chalk, bolus, loess, clay, dolomite, diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics
• the formulations generally contain between 0.01 and 95% by weight, preferably between 0J and 90% by weight, of the active ingredients.
• the active ingredients are used in a purity of 90% to 100%, preferably 95% to 100% (according to the NMR spectrum).
• formulations are: 1. Products for dilution in water
• Suspensions 20 parts by weight of the active ingredients are comminuted in a stirred ball mill to form a fine active ingredient suspension with the addition of dispersing and wetting agents and water or an organic solvent. Dilution in water results in a stable suspension of the active ingredient.
• the active ingredients are finely ground with the addition of dispersing and wetting agents and produced using technical equipment (e.g. extrusion, spray tower, fluidized bed) as water-dispersible or water-soluble granules. Dilution in water results in a stable dispersion or solution of the active ingredient.
• technical equipment e.g. extrusion, spray tower, fluidized bed
• WP, SP Water-dispersible and water-soluble powders 75 parts by weight of the active ingredients are ground in a rotor-strator mill with the addition of dispersing and wetting agents and silica gel. Dilution in water results in a stable dispersion or solution of the active ingredient.
• the active ingredients as such in the form of their formulations or the use forms prepared therefrom, e.g. in the form of directly sprayable solutions, powders, suspensions or dispersions, emulsions, oil dispersions, pastes, dusts, sprinkling agents, granules by spraying, atomizing, dusting, scattering or pouring.
• the application forms depend entirely on the purposes; in any case, they should ensure the finest possible distribution of the active compounds according to the invention.
• Aqueous application forms can be prepared from emulsion concentrates, pastes or wettable powders (wettable powders, oil dispersions) by adding water.
• emulsions, pastes or oil dispersions the substances as such or dissolved in an oil or solvent can be homogenized in water by means of wetting agents, adhesives, dispersants or emulsifiers.
• concentrates composed of an active substance, wetting agent, tackifier, dispersant or emulsifier and possibly solvent or oil, which are suitable for dilution with water.
• the active ingredient concentrations in the ready-to-use preparations can be varied over a wide range. In general, they are between 0.0001 and 10%, preferably between 0.01 and 1%.
• the active ingredients can also be used with great success in the ultra-low-volume (ULV) process, it being possible to apply formulations with more than 95% by weight of active ingredient or even the active ingredient without additives.
• UUV ultra-low-volume
• Oils of various types, surfactants, adjuvants, herbicides, fungicides, other pesticides, bactericides can be added to the active compounds, if appropriate also only immediately before use (tank mix). These agents can be mixed with the agents according to the invention in a weight ratio of 1:10 to 10: 1.
• the compounds I and II, or the mixtures or the corresponding formulations are used in that the harmful fungi, the plants, seeds, soils, surfaces, materials or spaces to be kept free from them are mixed with a fungicidally effective amount of the mixture or Compounds I and II when applied separately, treated.
• the application can take place before or after the infestation by the harmful fungi.
• the fungicidal activity of the compound and the mixtures can be demonstrated by the following tests:
• the active ingredients were prepared separately or together as a stock solution with 0.25% by weight of active ingredient in acetone or DMSO. 1% by weight of emulsifier Uniperol® EL (wetting agent with emulsifying and dispersing action based on ethoxylated alkylphenols) was added to this solution and diluted with water to the desired concentration.
• emulsifier Uniperol® EL wetting agent with emulsifying and dispersing action based on ethoxylated alkylphenols
• Pots with rice plants of the "Tai-Nong 67" variety were sprayed to runoff point with an aqueous suspension in the active compound concentration given below.
• pots of oat grains infected with Corticium sasakii were placed (5 kernels per pot) Plants placed in a chamber at 26 ° C and maximum air humidity After 11 days, the leaf sheath disease on the untreated but infected control plants had developed so strongly that the infestation could be determined visually in%.
• the evaluation is carried out by determining the infected plants in percent. These percentages were converted into efficiencies.
• ⁇ corresponds to the fungal attack of the treated plants in% and ß corresponds to the fungal attack of the untreated (control) plants in%
• the infestation of the treated plants corresponds to that of the untreated control plants; with an efficiency of 100, the treated plants show no infection.
• the expected efficacies of the active ingredient mixtures are determined using the Colby formula [RS Colby, Weeds 15, 20-22 (1967)] and compared with the observed efficacies.
• Colby formula: E x + y - xy / 100 E expected efficiency, expressed in% of the untreated control, when using the mixture of active ingredients A and B in concentrations a and bx the efficiency, expressed in% of the untreated control, when using the active ingredient A in the concentration ay the efficiency, expressed in% of the untreated control, when using the active ingredient B in the concentration b

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• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
• Plant Pathology (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
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• General Health & Medical Sciences (AREA)
• Wood Science & Technology (AREA)
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• Agricultural Chemicals And Associated Chemicals (AREA)

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  • 2004-06-30 EP EP04740457A patent/EP1656023A1/de not_active Withdrawn
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