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
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/12—Powders or granules
• • 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
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
• • 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
  • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
  • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
• • 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
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/647—Triazoles; Hydrogenated triazoles
  • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• • 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
  • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
  • A01N43/84—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4

Definitions

• the present invention relates to fungicidal agents with a synergistic fungicidal action in a formulation with delayed release of active ingredient and to methods for controlling fungi with these agents.
• active ingredients (a) and (b) are used to control fungi in the usual manner, e.g. by spray application.
• spray application e.g., several applications are required in the growing culture, so that these applications are associated with a considerable amount of work.
• the active compounds can come into contact with the surrounding air due to the application process, so that some of them are lost for use as a fungicide and, at the same time, can be harmful to the environment .
• a fungicidal agent has now been found which, in a formulation with delayed release of active ingredient, produces a fungicidally effective amount a) 4- (2-Methyl-3- [4-tert-butylphenyl] propyl) -2, 6-dimethylmorpholine (fenpropimorph) and / or the active ingredient tridemorph and / or the active ingredient fenpropidine
• a formulation with delayed release of active ingredient is advantageously suitable for combating fungi.
• fungicidal compositions are preferably formulated in the form of granules or pellets with a delayed release of active ingredient.
• the control of fungi with the fungicidal compositions in a formulation with delayed release of active ingredient is expediently carried out in such a way that an fungicidally effective amount of the fungicidal composition in or on the arable soil is applied to the seed applied in the arable soil or to the plants or seedlings that develop from it.
• the delayed release of the active substances enables the release rate of the active substances in the soil to be controlled in such a way that effective protection against fungal diseases can be maintained over the entire vegetation period.
• the active ingredient intake takes place continuously via the roots to the extent of the controlled release of the active ingredients from the active ingredients formulated according to the invention, and the active ingredients are then systemically distributed over the roots in the plants.
• the method for fungus control according to the invention offers the following advantages:
• the method according to the invention enables more targeted drug application on a smaller area.
• the seed dressing required by the conventional methods can be omitted.
• Tridemorph is 2, 6-dimethyl-4-tridecylmorpholine.
• Fenpropidine is N- [3- (4-tert-butylphenyl) -2-methylpropylpiperidine.
• the fenpropimorph component can exist in two stereoisomeric forms (morpholine ring), the cis isomer being preferred.
• the invention encompasses mixtures which contain the pure isomers of the compound fenpropimorph, in particular the cis isomer, and mixtures which contain mixtures of the isomers.
• azole active ingredient (b) epoxiconazole being used with particular advantage.
• the active ingredients (a) and (b) can also be present in the form of their salts or metal complexes. These mixtures are also encompassed by the invention.
• the salts are made by reaction with acids, e.g. Halogenic acids such as hydrofluoric acid, hydrochloric acid, hydrobromic acid or hydroiodic acid or sulfuric acid, phosphoric acid, nitric acid or organic acids such as acetic acid, trifluoroacetic acid, trichloroacetic acid, propionic acid, glycolic acid, lactic acid, succinic acid, citric acid, citric acid, benzoic acid, benzoic acid , Formic acid, benzenesulfonic acid, p-toluenesulfonic acid, methanesulfonic acid, salicylic acid, p-aminosalicylic acid or 1,2-naphthalenedisulfonic acid.
• acids e.g. Halogenic acids such as hydrofluoric acid, hydrochloric acid, hydrobromic acid or hydroiodic acid or sulfuric acid, phosphoric acid, nitric acid or organic acids such as acetic acid, trifluoroacetic acid,
• Metal complexes can optionally contain only one component (a) or one component (b) or even several components (a) or (b). It is also possible to produce metal complexes which combine both components (a) and (b) in one mixed complex included.
• Metal complexes are produced from the underlying organic molecule and an inorganic or organic metal salt, for example the halides, nitrates, sulfates, phosphates, acetates, trifluoroacetates, trichloroacetates, propionates, tartrates, sulfonates, salicylates, benzoates of the metals the second main group such as calcium and magnesium and the third and fourth main group such as aluminum, tin or lead and the first to eighth subgroups such as chromium, manganese, iron, cobalt, nickel, copper, zinc.
• the sub-group elements of the 4th period and in particular copper are preferred.
• the metals can exist in the different valences that they have.
• the metal complexes can contain one or more organic molecule parts as ligands.
• components (a) and components (b) are in a sustained release formulation.
• Such a controlled release of active ingredient makes it possible to maintain effective protection of the crop plants against fungal attack over the entire growing season by applying the fungicidal compositions according to the invention in the soil.
• the fungicides according to the invention are preferably formulated as granules or pellets with a delayed release of active ingredient.
• Suitable granules are produced, for example, as coating granules by first applying the active ingredients to solid granular carriers. The obtained active substance-containing granules are then wrapped 'with suitable substances envelope which cause a delayed controlled drug release.
• Suitable solid carriers for the coating granules are, for example, mineral earths such as silica gel, silicas, silica gels, silicates, talc, kaolin, limestone, lime, chalk, bolus, loess, clay, dolomite, diatomaceous earth, calcium and magnesium sulfate, magnesium oxide, ground plastics, Fertilizers such as ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas, for example Crotonylidene diurea, isobutylidene diurea and vegetable products such as cereal flour, maize flour, tree bark, wood and nutshell flour, corn meal, cellulose powder. Fertilizers are advantageously used as carriers. Fertilizer granules or pellets are preferred as the carrier, in particular those which contain phosphate.
• the granules generally have a grain size range of 0.1 to 10 mm, preferably 0.5 to 8 mm, in particular 1 to 6 mm.
• the active compounds are generally applied to the carriers by spraying them in the form of oil-in-water emulsions, emulsion concentrates, suspoemulsions, suspension concentrates or in solution in organic solvents or preferably in water.
• the active compounds (a) the use of oil-in-water emulsions, emulsion concentrates or the solutions mentioned is preferred.
• the spraying takes place e.g. in fluidized bed apparatus or in drums or turntables in which the carrier granules are rolled, in perforated vessels with controlled guidance of the drying medium, expediently air, or in the air suspension process. Temperatures between 10 ° C and 110 ° C are generally used for spraying and drying.
• the carrier containing the applied active ingredient is then coated with suitable coating materials.
• the envelopes for the controlled release of active ingredient from the coating granules are, for example into consideration: polymers and copolymers of acrylic acid and / or methacrylic acid and / or their esters, preferably copolymers based on C 1 -C 6 -alkyl acrylates and C 1 -C 6 -alkyl methacrylates, for example based on butyl acrylate and methyl methacrylate; Copolymers of acrylic and methacrylic acid esters with a low content of ammonium groups (e.g.
• Eudragit® RS copolymers of acrylic and methacrylic acid esters and trimethylammonium methacrylate
• Polyvinyl acetate Hydroxypropyl methyl cellulose phthalate or acetate succinate
• Cellulose, starch and polyvinyl acetate phthalate Carboxymethyl cellulose; Methyl cellulose phthalate, succinate, phthalate succinate and half-phthalate acid, ethyl cellulose and succinate
• Shellac Ethyl carboxyethyl cellulose; Methacrylate-maleic anhydride copolymer; Maleic anhydride-vinyl methyl ether copolymer; Styrene-maleic acid copolymers; 2-ethyl-hexyl-acrylate maleic anhydride, crotonic acid-vinyl acetate copolymer; Carboxymethyl ethyl cellulose glycerol monooctanoate; Cellulose acetate succinate; Polyethylene,
• Aqueous wax dispersions which contain, based on the aqueous wax dispersion, 5 to 40% by weight of an ethylene copolymer wax consisting of 10 to 25% by weight of an ⁇ -olefinically unsaturated mono- or dicarboxylic acid with 3 to 8 are advantageously used as coating materials C atoms and 90 to 75% by weight of ethylene with an MFI value, measured at 190 ° C.
• a load of 2.16 kp from 1 to 600, preferably 5 to 500, in particular 15 to 300 or an MFI value, measured at 160 ° C and 325 p, from 1 to 600, 0.1 to 5 wt .-% alkali hydroxide, ammonia, an alkanolamine or a dialkanolamine and their mixtures and the rest water 100%.
• the copolymers of ethylene to be used for the wax dispersions contain 10 to 25, preferably 15 to 24% by weight of ⁇ -olefinically unsaturated mono- or dicarboxylic acids having 3 to 8 carbon atoms, of which, for example, acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid and itaconic acid may be mentioned. Of these, methacrylic acid and in particular acrylic acid and their mixtures are preferred.
• the ethylene copolymer waxes are characterized by a special MFI (melt flow index) or melt index.
• MFI melt flow index
• melt index the amount of polymer melt in grams that can be pressed at a certain temperature through a nozzle of certain dimensions with a certain effort (load).
• the melt indices (MFI units) are determined in accordance with the following standards, ASTM D 1238-65 T, ISO R 1133-1696 (E) or DIN 53 735 (1970), which are identical to one another.
• the wax dispersions usually contain bases, generally 0.1 to 5, preferably 1 to 3,% by weight of alkali metal hydroxide, preferably potassium hydroxide or sodium hydroxide, ammonia, a mono-, di- or trialkanolamine, each with 2 to 18 ° C. Atoms in the hydroxyalkyl radical, preferably 2 to 6 carbon atoms, or mixtures of the alkanolamines mentioned or a dialkyl monoalkanolamine each having 2 to 8 carbon atoms in the alkyl and hydroxyalkyl radical or their mixtures. Examples of amines which may be mentioned are diethanolamine, triethanolamine, 2-amino-2-methylpropanol- (1) or dimethylethanolamine. Ammonia is preferably used.
• the carboxylic acid groups in the copolymer waxes are at least partially in the salt form. These groups are preferably neutralized to 50 to 90% and especially to 60 to 85%.
• the coating layer can contain additional substances for controlling the release of the active substances.
• additional substances e.g. water-soluble substances such as polyethylene glycols, polyvinylpyrrolidone, copolymers of polyvinylpyrrolidone and polyvinyl acetate. Their amount is, for example, 0.1 to
• the coating layer is expediently applied by spraying on solutions, dispersions or dispersion of the coating substances mentioned in organic solvents or water.
• An aqueous suspension or an emulsion is preferably used.
• sion of the coating material which in particular have a polymer substance content of 0.1 to 50 and especially 1 to 35% by weight. Additional auxiliaries can also be added to optimize processability, for example surface-active substances, solids such as talc and / or magnesium stearate.
• a wax dispersion which contains 5 to 40% by weight of an ethylene copolymer wax, 0.1 to 5% by weight of ammonia and 55 to 94.9% by weight of water or from these components is particularly preferred consists, wherein the ethylene copolymer wax is composed of 75 to 90 wt .-% ethylene units and 10 to 25 wt .-% of units of an ⁇ -olefinically unsaturated mono- or dicarboxylic acid with 3 to 8 carbon atoms.
• the shell polymers used according to the invention are generally known or can be obtained by known methods (cf. e.g. DE-A 34 20 168; EP-A 201 702; US-A 5 206 279).
• Spraying takes place, for example, in fluidized bed apparatus or in drums or turntables in which the carrier granules are rolled, in perforated vessels with controlled guidance of the drying medium or in the air suspension process. In general, temperatures between 10 ° C and 110 ° C are used.
• the fungicidal compositions thus obtained and provided with the coating layer can be used as such for the control of fungi according to the invention with controlled release of the active ingredient.
• fungicidal compositions obtained in this way allow the controlled active ingredient release to be graded further, the active ingredients applied on the outside of the coating layer being important for a more targeted initial action. It can also be advantageous to use a second coating layer, which provides a further control option for the delayed release of the active ingredients.
• the active ingredients are stored in suitable matrix substances from which the active ingredients are delayed and released in a controlled manner .
• the material used for the covering can be used as the matrix.
• the preparation is expediently carried out in such a way that the active compounds are dissolved or dispersed in the solution or dispersion of the coating material and then this preparation, as described above for the enveloping materials, is applied to the carrier material. This ensures that the active ingredients are evenly distributed in the coating layer. As a rule, the release from these formulations is diffusion-controlled.
• the fungicidal compositions generally contain between 0.01 and 95, preferably 0.05 to 90,% by weight of active compound (a) and (b).
• the application rates are between 0.02 and 5 kg, preferably 0.05 and 3 kg, of active ingredients (a) and (b) per ha.
• the ratio of active ingredient (a) to active ingredient (b) is in the fungicidal mixture in general 50: 1 to 1:10, preferably 20: 1 to 1: 5, in particular 10: 1 to 1: 2.
• the mixtures are distinguished by excellent activity against a broad spectrum of phytopathogenic fungi, in particular from the classes of the Ascomycetes and Basidiomycetes.
• fungi are of particular importance for combating a large number of fungi on various crops such as cereals, e.g. Wheat, rye, barley, oats, rice, rapeseed, sugar beet, maize, soya, coffee, sugar cane, ornamental plants and vegetables such as cucumber, beans and squashes.
• the fungicides according to the invention are used with particular advantage for combating fungi on cereals.
• the fungicidal compositions according to the invention are expediently applied by allowing the fungicidal composition in or on the soil to act on the seed applied in the soil or on plants developing therefrom or on seedlings.
• the application of the fungicidal agent and the application of the seed or the planting of the seedlings can be carried out in separate work processes, the application of the fungicidal agent being possible before or after the application of the seed or the implantation of the seedlings.
• the active ingredient epoxiconazole was processed in the form of a suspension concentrate of the following composition: 500 g / 1 epoxiconazole,
• Ethylene oxide is grafted on as a dispersant (from BASF, Germany),
• liquid preparations of epoxiconazole used in the following examples were obtained by diluting this suspension concentrate with the appropriate amount of water.
• the active ingredient fenpropimorph was processed as an oil-in-water emulsion with the following composition:
• the mixture was then dried for a further 10 minutes with further supply of air at from 39 to 42 ° C.
• the proportion of the coating layer in the coated fertilizer granules obtained after drying was 5% by weight, based on the coated fertilizer granules.
• Example 1b The procedure was as described in Example 1b), but 4.89 kg of the wax dispersion were sprayed onto 12 kg of the fertilizer granules charged with epoxiconazole in accordance with Example la) at a supply air and exhaust air temperature in the range from 45 to 48 ° C. as the coating substance the total time for spraying and post-drying was 175 minutes.
• Example 1b The procedure was as described in Example 1b), except that three times the amount of the wax dispersion was sprayed on at a supply air and exhaust air temperature of 44-45 ° C., the total time for the spraying and post-drying being 200 minutes.
• Example 4b The procedure was as described in Example 4b), except that 1.428 kg of the wax dispersion were sprayed onto 3.4 kg of the fertilizer granules treated with fenpropimorph in accordance with Example 4a) at an inlet and outlet air temperature in the range from 44 to 45 ° C. the total time for spraying and post-drying was 125 min.
• Example 7 The procedure was as described in Example 4b), but 2.142 kg of the wax dispersion were sprayed onto 3.4 kg of the fertilizer granules charged with fenpropimorph in accordance with Example 4a) at an inlet and outlet air temperature of 44-45 ° C., the total time for the spraying and the final drying was 190 minutes. The content of the coating layer, based on the coated fertilizer granules obtained after drying, was 15% by weight.
• Example 7 The content of the coating layer, based on the coated fertilizer granules obtained after drying, was 15% by weight.
• two active ingredient solutions were applied simultaneously to 5 kg of NP 20-20-0 fertilizer granules through 5 two separate nozzles.
• One solution contained 2.5 g epoxiconazole (according to ( ⁇ ), see above) and the other contained an oil-in-water emulsion of 15 g fenpropimorph.
• the granules treated in this way were sprayed with 740 g of the wax dispersion described there in accordance with spraying 1b) or 4b), the supply air temperature being 45 ° C. and the total time for application being 62 minutes.
• Examples 11-16 were carried out analogously to Examples 1, 2, 4, 5 and 7, each with 3.8 kg of NP 20-20-0 fertilizer granules, but using an aqueous polymer dispersion instead of the wax dispersion described above (Type Acronal ® , BASF) which is 60% by weight water and
• 40 40 wt .-% consists of a copolymer of methyl methacrylate and n-butyl acrylate (1: 1).
• the individual application rates and experimental parameters can be found in the following table.
• the supply air temperature was between 40 - 45 ° C in all cases.
• the coating amount in the finished granulate was 5% by weight in Examples 11, 13 and 15, and 10% by weight in Examples 12, 14 and 16.
• the product was then powdered on a plate 5 with 0.25% by weight talc.
• Examples 17-22 were carried out analogously to Examples 11-16-20, except that the active ingredients were not applied separately but were stirred into the shell dispersion used and then applied together with the latter. The application rates and the other test parameters remained practically unchanged.
• Examples 23 and 24 were carried out analogously to Examples 11 and 13, however, 2.0 kg of pumice split with a grain size of 2.0-3.5 mm and a bulk density of 30 460 g / l were used as the carrier material. Due to the lower density of the pumice split, the amount of coating in the finished product was 10% by weight.
• Example 25-30 correspond in their implementation to the examples described above as follows: Example 25 corresponds to Example 11, Example 26 corresponds to Example 17, Example 27 corresponds to Example 13, Example 28 corresponds to Example 19, Example 29 corresponds to example 15 and example 30
• the supply air temperature was 50 ° C and the time for spraying between 40 and 50 min.
• the finished granulate was treated with 1% by weight talc.
• Example 7 solutions of 7.5 g fenpropimorph (according to (ß), see above) and of 1.25 g epoxiconazole (according to ( ⁇ ). See above) were first added to 3.8 kg of NP 20-20-0 fertilizer in 38, 75 g of water applied through two separate nozzles and dried. A mixture of 500 g of the acronal dispersion described in Examples 11-16, 5 g of fenpropimorph (according to ( ⁇ ), see above) and 0.83 g of epoxiconazole (according to ( ⁇ ), see above) was then applied as a shell brought and dried (time: 45 min, temp.: 45 ° C supply air).
• Example 31 This example was carried out analogously to Example 31, but 740 g of the wax dispersion described in Example 1b) were used instead of the acronal dispersion (time: 55 min, temp .: 50 ° C.).
• the product contained 5% by weight of wrapping material and had the active ingredient distribution shown in Example 31.
• Example 31 was carried out in accordance with Example 31.
• the individual application rates of the active substances were varied in such a way that their distribution in the finished product changed in such a way that one third of the active substances was applied under the shell and two thirds were embedded in the shell material.
• Fungicide granules with delayed release of active ingredient were mixed with winter wheat seeds of the "Rector" variety in such a way that
• the table shows that fenpropimorph and epoxiconazole in the form of slow release granules are used to combat the airborne pathogens Erysiphe graminis and Pyrenophora teres even when ingested via the plant roots.
• the combination of both active ingredients achieves the highest efficiencies in this process.

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• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
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• Environmental Sciences (AREA)
• Plant Pathology (AREA)
• Engineering & Computer Science (AREA)
• Dentistry (AREA)
• Pest Control & Pesticides (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Agronomy & Crop Science (AREA)
• Toxicology (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Feed For Specific Animals (AREA)
• Medicines Containing Plant Substances (AREA)
• Materials For Medical Uses (AREA)
• Medicinal Preparation (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Pretreatment Of Seeds And Plants (AREA)
• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
• Fertilizers (AREA)

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