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
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
  • A01N37/50—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids the nitrogen atom being doubly bound to the carbon skeleton
• • 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
  • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
  • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
• • 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
  • A01N43/80—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 five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2

Definitions

• the present invention relates to a granule comprising at least one pesticide (a) and a mixture of alpha starch (b) and methyl-cellulose (c).
• the present invention furthermore relates to methods of using such granules for combating pests.
• Granule formulation is a well known pesticide technology. For example, there are gran- ules, that are used for penetrating leaves and bait formulation (WO 08/061655). On the other hand, granules are used for soil and/or treatment in paddy rice fields or nursery box treatment. For the latter purposes, it is necessary to reach long efficacy and/or reduce phytotoxicity. Thus, a controlled release of the active ingredient contained in the granule is an important feature of such granules.
• the art describes, for example, granules having a core containing agrochemical components which is covered with a thermoplastic resin film (JP, 01 -5002,B), granules with improved gradual-release-control of the agrochemical active ingredient by means of a smooth and even enveloping layer around the core granule (JP, 01 -4483,B), granules having a core containing agrochemical components which is covered with a water insoluble oligomer or polymer (JP, 02-57047, B) or granules having a in water non- disintegrating core containing agrochemical components which is first impregnated with a hydrophobic oily fluid, and then covered with hydrophobic fines (JP, 02-286602,A).
• sustained-release control granule containing agrochemical active ingredi- ents can be made by employing a wax matrix using thermoplastics (JP,2002-
• granular formulations for foliar application are described, together with a process for their preparation, wherein the granular formulation comprises at least one agrochemical and starch (wheat dunst) which is obtained by comminution of cereals and has the function of a matrix. Heat treatment of the starch is not mentioned.
• WO 99/51091 certain granules are described, which comprise a pesticide, starch and ethylcellulose.
• the starch used is not pregelatinized and is used as a swelling agent.
• a hydrophobic coating film on the granule surface is necessary for slow release of the active ingredient. As mentioned above, a coating increases efforts and costs during manufacture.
• this object is in part or in whole achieved by granules comprising at least one pesticide (a) and a mixture of alpha starch (b) and methyl-cellulose (c).
• Alpha starch (CAS No. is shown in 9005-25-8) is pregelatinized starch, which can be obtained by quick desiccation after dissolving conventional starch in water.
• alpha starch is used as a synonym for pregelatinized starch, and also as a synonym for the German term "Quellstarke”.
• Alpha starch, which is pregelatinized starch is soluble in water and is able to form gels, whereas untreated starch is insoluble in water and can not form gels.
• Alpha starch, which is pregelatinized starch is therefore considered as a special kind of solubilized starch.
• Alpha starch which is pregelatinized starch
• any starch isolated from plants can be used according to the present invention.
• starch from corn, potato, tapicoca, or cereal starch e.g. from barley, rye, rice
• the respective starch can be modified (e.g. by etherification, esterification, hydroxylation) or non-modified.
• Non-modified starch is preferred.
• Examples of commercial available starches are Amicol C, Amicol HF, Amicol A, Amicol No 602, Amicol Nyu-ka, Peterosize J (all from Nippon starch), Matsunorin CM, Matsunorin M and Matsunorin M22 (all from Matsutani chem.), Nisshoku-alstar, Nisshoku-alstar H (from Nihon sho- kuhin kako) and Aplha-starch (Sanwa cornstarch) and Amirox A1 (Nihon cornstarch).
• starch in the context of this invention is understood to include only the abovementioned conventional starch isolated from plants, but not modified starch.
• pregelatinized starch prepared from modified starch is employed.
• methyl-cellulose refers to cellulose, which is methylated.
• methyl-cellulose comprises cellulose, of which the hydroxyl groups are totally or partly methylated.
• methyl- cellulose does not comprise derivatives and analogs of cellulose which are methylated, e.g. hydroxypropylmethylcellulose, methylethylcellulose and the like.
• the average degree of methylation in methylcellulose can vary from 0.7 to 3.0.
• an average methylation degree from 1.4 to 2.3 is preferred.
• An example of commercial available methylcellulose is METOLOSE SM series (Shin-Etsu Chemical Co., Ltd.).
• derivatives and analogs of cellulose might be employed, which are methylated, e.g. hydroxypropylmethylcellulose (CAS No. 9004-65-3), methylethylcellulose (CAS No. 9004-59-5) and the like.
• hydroxypropylmethylcellulose CAS No. 9004-65-3
• methylethylcellulose CAS No. 9004-59-5
• the side chain binding to the cellulose frame struc- ture is different.
• At least one pesticide within the meaning of the invention states that one or more compounds can be selected from the group consisting of fungicides, insecticides, nematicides, herbicide and/or safeners or growth regulators, preferably from the group consisting of fungicides, insecticides or nematicides, most preferably from the group consisting of fungicides. Also mixtures of pesticides of two or more the aforementioned classes can be used. The skilled artisan is familiar with such pesticides, which can be, for example, found in the Pesticide Manual, 13th Ed. (2003), The British Crop Protection Council, London.
• the fungicide can be selected from:
• - carboxanilides benalaxyl, benalaxyl-M, benodanil, bixafen, boscalid, carboxin, fen- furam, fenhexamid, flutolanil, furametpyr, isopyrazam, isotianil, kiralaxyl, mepronil, metalaxyl, metalaxyl-M (mefenoxam), ofurace, oxadixyl, oxycarboxin, penthiopyrad, tecloftalam, thifluzamide, tiadinil, 2-amino-4-methyl-thiazole-5-carboxanilide, 2-chloro-N-(1 ,1 ,3-trimethyl-indan-4-yl)-nicotinamide, N-(2',4'-difluorobiphenyl-2-yl)- 3-difluoromethyl-1 -methyl-1 H-pyrazole-4
• carpropamid carpropamid, dicyclomet, mandiproamid, oxytetracyclin, silthio- farm and N-(6-methoxy-pyridin-3-yl) cyclopropanecarboxylic acid amide;
• C) azoles carpropamid, dicyclomet, mandiproamid, oxytetracyclin, silthio- farm and N-(6-methoxy-pyridin-3-yl) cyclopropanecarboxylic acid amide;
• - triazoles azaconazole, bitertanol, bromuconazole, cyproconazole, difenoconazole, diniconazole, diniconazole-M, epoxiconazole, fenbuconazole, fluquinconazole, flusi- lazole, flutriafol, hexaconazole, imibenconazole, ipconazole, metconazole, myclobu- tanil, oxpoconazole, paclobutrazole, penconazole, propiconazole, prothioconazole, simeconazole, tebuconazole, tetraconazole, triadimefon, triadimenol, triticonazole, uniconazole, 1-(4-chloro-phenyl)-2-([1 ,2,4]triazol-1-yl)-cycloheptanol;
• D) heterocyclic compounds pyridines fluazinam, pyrifenox, 3-[5-(4-chloro-phenyl)-2,3-dimethyl-isoxazolidin- 3-yl]-pyridine, 3-[5-(4-methyl-phenyl)-2,3-dimethyl-isoxazolidin-3-yl]-pyridine, 2,3,5,6-tetra-chloro-4-methanesulfonyl-pyridine, 3,4,5-trichloropyridine-2,6-di-carbo- nitrile, N-(1 -( ⁇ -bromo-S-chloro-pyridin ⁇ -y ⁇ -ethyQ ⁇ -dichloronicotinamide,
• - pyrimidines bupirimate, cyprodinil, diflumetorim, fenarimol, ferimzone, mepani- pyrim, nitrapyrin, nuarimol, pyrimethanil;
• - piperazines triforine
• - pyrroles fenpiclonil, fludioxonil
• - dicarboximides fluoroimid, iprodione, procymidone, vinclozolin; - non-aromatic 5-membered heterocycles: famoxadone, fenamidone, flutianil, octhili- none, probenazole, 5-amino-2-isopropyl-3-oxo-4-ortho-tolyl-2,3-dihydro-pyrazole- 1-carbothioic acid S-allyl ester; - others: acibenzolar-S-methyl, amisulbrom, anilazin, blasticidin-S, captafol, captan, chinomethionat, dazomet, debacarb, diclomezine, difenzoquat, difenzoquat-methyl- sulfate, fenoxanil, Folpet, oxolinic acid, piperalin, proquinazid, pyroquilon, qui
• - thio- and dithiocarbamates ferbam, mancozeb, maneb, metam, methasulphocarb, metiram, propineb, thiram, zineb, ziram; - carbamates: benthiavalicarb, diethofencarb, flubenthiavalicarb, iprovalicarb, propa- mocarb, propamocarb hydrochlorid, valiphenal and N-(1-(1-(4-cyano-phenyl)- ethanesulfonyl)-but-2-yl) carbamic acid-(4-fluorophenyl) ester;
• guanidine guanidine, dodine, dodine free base, guazatine, guazatine-acetate, iminoctadine, iminoctadine-triacetate, iminoctadine-tris(albesilate);
• - antibiotics kasugamycin, kasugamycin hydrochloride-hydrate, streptomycin, poly- oxine, validamycin A; nitrophenyl derivates: binapacryl, dinobuton, dinocap, nitrthal-isopropyl, tecnazen, organometal compounds: fentin salts, such as fentin-acetate, fentin chloride or fen- tin hydroxide;
• organophosphorus compounds edifenphos, fosetyl, fosetyl-aluminum, iprobenfos, phosphorous acid and its salts, pyrazophos, tolclofos-methyl;
• organochlorine compounds chlorothalonil, dichlofluanid, dichlorophen, flusulfamide, hexachlorobenzene, pencycuron, pentachlorphenole and its salts, phthalide, quinto- zene, thiophanate-methyl, tolylfluanid, N-(4-chloro-2-nitro-phenyl)-N-ethyl-4-methyl- benzenesulfonamide;
• inorganic active substances Bordeaux mixture, copper acetate, copper hydroxide, copper oxychloride, basic copper sulfate, sulfur; - others: biphenyl, bronopol, cyflufenamid, cymoxanil, diphenylamin, metrafenone, mildiomycin, oxin-copper, prohexadione-calcium, spiroxamine, tolylfluanid, N-(cyclo- propylmethoxyimino-(6-difluoro-methoxy-2,3-difluoro-phenyl)-methyl)-2-phenyl acetamide, N'-(4-(4-chloro-3-trifluoromethyl-phenoxy)-2,5-dimethyl-phenyl)-N-ethyl- N-methyl formamidine, N'-(4-(4-fluoro-3-trifluoromethyl-phenoxy)-2,5-dimethyl-phenyl)-
• Growth regulators can be selected from: abscisic acid, amidochlor, ancymidol, 6-benzylaminopurine, brassinolide, butralin, chlormequat (chlormequat chloride), choline chloride, cyclanilide, daminozide, dike- gulac, dimethipin, 2,6-dimethylpuridine, ethephon, flumetralin, flurprimidol, fluthiacet, forchlorfenuron, gibberellic acid, inabenfide, indole-3-acetic acid , maleic hydrazide, mefluidide, mepiquat (mepiquat chloride), naphthaleneacetic acid, N-6-benzyladenine, paclobutrazol, prohexadione (prohexadione-calcium), prohydrojasmon, thidiazuron, triapenthenol, tributyl phosphorotrithi
• Herbicides can be selected from:
• acetochlor alachlor, butachlor, dimethachlor, dimethenamid, flufena- cet, mefenacet, metolachlor, metazachlor, napropamide, naproanilide, pethoxamid, pretilachlor, propachlor, thenylchlor;
• - aryloxyphenoxypropionates clodinafop, cyhalofop-butyl, fenoxaprop, fluazifop, ha- loxyfop, metamifop, propaquizafop, quizalofop, quizalofop-P-tefuryl; - Bipyridyls: diquat, paraquat;
• - (thio)carbamates asulam, butylate, carbetamide, desmedipham, dimepiperate, ep- tam (EPTC), esprocarb, molinate, orbencarb, phenmedipham, prosulfocarb, pyribu- ticarb, thiobencarb, triallate;
• - diphenyl ethers acifluorfen, aclonifen, bifenox, diclofop, ethoxyfen, fomesafen, lac- tofen, oxyfluorfen; - hydroxybenzonitriles: bomoxynil, dichlobenil, ioxynil; imidazolinones: imazamethabenz, imazamox, imazapic, imazapyr, imazaquin, imazethapyr; - phenoxy acetic acids: clomeprop, 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4-DB, dichlorprop, MCPA, MCPA-thioethyl, MCPB, Mecoprop;
• - pyridines aminopyralid, clopyralid, diflufenican, dithiopyr, fluridone, fluroxypyr, pi- cloram, picolinafen, thiazopyr;
• - sulfonyl ureas amidosulfuron, azimsulfuron, bensulfuron, chlorimuron-ethyl, chlor- sulfuron, cinosulfuron, cyclosulfamuron, ethoxysulfuron, flazasulfuron, flucetosulfu- ron, flupyrsulfuron, foramsulfuron, halosulfuron, imazosulfuron, iodosulfuron, meso- sulfuron, metsulfuron-methyl, nicosulfuron, oxasulfuron, primisulfuron, prosulfuron, pyrazosulfuron, rimsulfuron, sulfometuron, sulfosulfuron, thifensulfuron, triasulfuron, tribenuron, trifloxysulfuron, triflusulfuron, tritosulfuron, 1-((2-
• - triazines ametryn, atrazine, cyanazine, dimethametryn, ethiozin, hexazinone, metamitron, metribuzin, prometryn, simazine, terbuthylazine, terbutryn, triaziflam;
• - ureas chlorotoluron, daimuron, diuron, fluometuron, isoproturon, linuron, metha- benzthiazuron,tebuthiuron;
• acetolactate synthase inhibitors bispyribac-sodium, cloransulam-methyl, di- closulam, florasulam, flucarbazone, flumetsulam, metosulam, ortho-sulfamuron, pe- noxsulam, propoxycarbazone, pyribambenz-propyl, pyribenzoxim, pyriftalid, pyrimi- nobac-methyl, pyrimisulfan, pyrithiobac, pyroxasulfone, pyroxsulam;
• Insecticides can be selected from:
• organo(thio)phosphates acephate, azamethiphos, azinphos-methyl, chlorpyrifos, chlorpyrifos-methyl, chlorfenvinphos, diazinon, dichlorvos, dicrotophos, dimethoate, disulfoton, ethion, fenitrothion, fenthion, isoxathion, malathion, methamidophos, me- thidathion, methyl-parathion, mevinphos, monocrotophos, oxydemeton-methyl, paraoxon, parathion, phenthoate, phosalone, phosmet, phosphamidon, phorate, phoxim, pirimiphos-methyl, profenofos, prothiofos, sulprophos, tetrachlorvinphos, terbufos, triazophos, trichlorfon;
• - carbamates alanycarb, aldicarb, bendiocarb, benfuracarb, carbaryl, carbofuran, carbosulfan, fenoxycarb, furathiocarb, methiocarb, methomyl, oxamyl, pirimicarb, propoxur, thiodicarb, triazamate;
• - pyrethroids allethrin, bifenthrin, cyfluthrin, cyhalothrin, cyphenothrin, cypermethrin, alpha-cypermethrin, beta-cypermethrin, zeta-cypermethrin, deltamethrin, esfen- valerate, etofenprox, fenpropathrin, fenvalerate, imiprothrin, lambda-cyhalothrin, permethrin, prallethr
• - nicotinic receptor agonists/antagonists compounds clothianidin, dinotefuran, imida- cloprid, thiamethoxam, nitenpyram, acetamiprid, thiacloprid, 1-(2-chloro-thiazol-5- ylmethyl)-2-nitrimino-3,5-dimethyl-[1 ,3,5]triazinane;
• GABA antagonist compounds endosulfan, ethiprole, fipronil, vaniliprole, pyraflu- prole, pyriprole, 5-amino-1-(2,6-dichloro-4-methyl-phenyl)-4-sulfinamoyl-
• 1 H-pyrazole-3-carbothioic acid amide macrocyclic lactone insecticides: abamectin, emamectin, milbemectin, lepimectin, spinosad, spinetoram; mitochondrial electron transport inhibitor (METI) I acaricides: fenazaquin, pyridaben, tebufenpyrad, tolfenpyrad, flufenerim;
• METI Il and III compounds acequinocyl, fluacyprim, hydramethylnon;
• - oxidative phosphorylation inhibitors cyhexatin, diafenthiuron, fenbutatin oxide, propargite; - moulting disruptor compounds: cryomazine;
• fungicides and insecticides are preferred.
• Preferred are probenazole, pymetrozine, the neonicotinoids and phenylpyrazoles, wherein the imidacloprid, thiamethoxam, acetamiprid and clothianidin are preferred neonicotinoids, imidacloprid and clothianidin are most preferred neonicotinoids. Most preferred is acetamiprid.
• Preferred phenylpyrazoles are fipronil and ethiprole, more preferably fipronil.
• strobilurine fungicides wherein amongst this group azox- ystrobin, kresoxim-methyl, orysastrobin, picoxystrobin, pyraclostrobin, trifloxystrobin are more preferred, azoxystrobin, orysastrobin, pyraclostrobin and trifloxystrobin are most preferred. Also, the group of azoxystrobin, orysastrobin, trifloxystrobin is preferred. The utmost preferred strobilurine fungicide is orysastrobin.
• the granules according to the present invention may further comprise formulation auxiliaries.
• formulation auxiliaries within the meaning of the invention refers to auxiliaries suitable for the formulation of pesticides in granules, which are known to the skilled artisan, for example carriers and/or lubricants and/or preservatives (e.g. antioxidants, stabilizing agents) surfactants (ionic or non-ionic surfactants, adjuvants, dispersing agents) and/or preservatives and/or parting agents.
• suitable carriers are mineral earths such as silica gels, silicates, talc, kaolin, attaclay, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, calcium carbonate, diatomite, zeolithe, , magnesium sulfate, magnesium oxide, ground synthetic materials, fertilizers, such as, for example, ammonium sulfate, ammonium phosphate, ammonium nitrate, ureas, and products of vegetable origin, such as cereal meal, tree bark meal, wood meal and nutshell meal, cellulose powders, polyvinylpyrrolidone, pumice stone, titanium dioxide and other solid carriers.
• mineral earths such as silica gels, silicates, talc, kaolin, attaclay, limestone, lime, chalk, bole, loess, clay, dolomite, diatomaceous earth, calcium sulfate, calcium carbonate, di
• Suitable preservatives are for example 1 ,2- benzisothiazolin-3-one and/or 2-Methyl-2H-isothiazol-3-one or sodium benzoate or benzoic acid, epoxidized soybean oil, epoxidized linseed oil, ethylene glycol.
• Suitable lubricants are for example artificial and natural fats and oils , for example calcium stearate, liquid paraffin, polyethylene glycol as well as anorganic lubricants such as talc.
• Suitable surfactants are alkali metal, alkaline earth metal and ammonium salts of aromatic sulfonic acids, such as ligninsoulfonic acid (Borresperse® types, Borregard, Norway) phenolsulfonic acid, naphthalenesulfonic acid (Morwet® types, Akzo Nobel, U.S.A.), dibutylnaphthalene- sulfonic acid (Nekal® types, BASF, Germany), and fatty acids, alkylsulfonates, alkyl- arylsulfonates, alkyl sulfates, laurylether sulfates, fatty alcohol sulfates, and sulfated hexa-, hepta- and octadecanolates, sulfated fatty alcohol glycol ethers, furthermore conden
• methylcellulose g. methylcellulose
• hydrophobically modified starches polyvinyl alcohols (Mowiol® types, Clariant, Switzerland), polycarboxylates (Sokolan® types, BASF, Germany), polyalkoxylates, polyvi- nylamines (Lupasol® types, BASF, Germany), polyvinylpyrrolidone and the copolymers therof.
• the amount of the individual components a) to d) can vary depending on the intended use, the pesticide and the pest, which is combated by the granules.
• the granules according to the present invention comprise the pesticide(s) a) in the range from 0.1 to 50% by weight, preferably 0.1-30%, more preferably from 0.5 to 15% by weight, most preferably from 1-10% by weight.
• the granules according to the present invention comprise the alpha starch b) in the range from 0.1 to 20% by weight.
• the granules according to the present invention comprise the methyl- cellulose c) in the range from 0.05 to 50% by weight, preferably 0.05-20% by weight.
• the formulation auxiliares are present in an amount that adds up to 100%.
• the bulk density of the granules according to the present invention is in general less than 2.0 g/ml, preferably less than 1.5 g/ml.
• the granules according to the present invention which comprise at least one pesticide (a), alpha starch (b) and methyl-cellulose (and optionally formulation auxiliaries) can be prepared by methods known in the art.
• the mechanical processes can be carried out in any suitable apparatus known per se to the person skilled in the art. These processes can be carried out, for example, in a screw extruder or an expander.
• these processes can be carried out, for example, in a screw extruder or an expander.
• the components of the granules are initially mixed with one another. This granular premix is then subjected to the respective processes.
• the mechanical processes comprise for example expanding, extruding, flocculation with or without final structuralization, for example granulation or extrusion processes.
• Granulation processes that may be used for preparation of the granules according to the present invention include, but are not limited to pan granulation, compaction granulation, centrifugal granulation or fluidized bed granulation.
• the granules are prepared by extrusion processes.
• the process of preparing the granules according to the invention by extrusion can be performed as known by the person skilled in the art. Usually, the production process comprises the following steps: 1.) Dry blending of ingredients, 2.) Kneading with water, 3.) Extrusion, 4.) Cutting of extrudate, 5.) Drying, 6.) Sieving.
• the process of preparing the granules according to the invention by extrusion can be performed analogously to the processes described in US5714157 or US6893589, without being limited to these processes.
• all components are mixed and in a manner known per se in kneaders or mixers before extrusion or in the extruders itself, e.g. in single- or twin-screw extruders or basket extruders wherein the extruder may contain mixing, kneading and return elements, as required.
• the temperature range may be between 10 and 200 0 C, preferably between 15 and 100 0 C, and especially preferably in a temperature range of between 15 and 80°C.
• a layered structure can be realized by coextrusion or subsequent coating, for example in a fluidized bed, with the aid of solutions or dispersions which may or may not comprise pesticide(s) and/or formulation auxiliaries, and this layered structure modifies the release of the granule according to the present invention.
• fur- ther pesticide(s) can be applied in this manner to the prepared granules.
• the extruded material can be cut into a suitable length. Suitable sizes can be selected e.g. by sieving.
• Comminuting of the granules obtained in this manner can be carried out, for example, in one step or in a plurality of steps.
• this pre-comminution which is carried out in a prebreaker, can be carried out, for example, with cooling, i.e. at re- Jerusalem temperatures.
• the size of the granules may also be adjusted using a mill, in particular a roller mill, or a sieve, for example a passing sieve.
• this involves recycling the undersize material and/or the oversize material.
• the granules according to the invention can be of any form, and they are not subject to any limitations in this regard. Thus, both irregular shapes and regular shapes of the granules according to the invention are feasible.
• the granules may be present either as crushed granules or as cut granules. Regular shapes which may be mentioned are, for example, a lentil shape, a cylinder shape, a spherical shape or a discus shape.
• the suitable particle diameter of the sustained-release agrochemical granule concerning this invention can be chosen according to the intended use, the preferred granule diameter is in the range of 0.1 mm - 2.5mm, more preferably in the range of 0.350 mm - 2.0 mm, most preferably in the range of 0.4 - 1.8 mm.
• the granule diameter is determined by using screen hole size of extruder.
• the present invention also relates to method of combating pests, which comprises contacting said pests or their habit, breeding ground, food supply, plants, seed, soil, area, material or environment in which the harmful organisms are growing or may grow, or the materials, plants, seeds, soils, surfaces or spaces to be protected from attack or infestation by harmful organisms with an pesticidally effective amount of a granule according to the present invention.
• pests means phytopathogenic fungi or animal pests such as insects, arachnids or nematodes.
• effective amount means the amount of the pesticide(s) needed to achieve an observable effect on growth, including the effects of necrosis, death, retardation, prevention, and removal, destruction, or otherwise diminishing the occurrence and activity of the target organism.
• the effective amount can vary.
• An effective amount will also vary according to the prevailing conditions such as desired effect and duration, weather, target species, locus, mode of application, and the like.
• the present invention furthermore relates to a method for controlling undesirable vegetation, which comprises allowing a herbicidally effective amount present in a granule according to the present invention to act on harmful plants, their habitat or on seed.
• formulations according to the invention can be applied via various methods, which are more detailed set forth below.
• the application rates of the pesticide are from 0,3 g/ha to 2000 g/ha, preferably 5 g/ha to 2000 g/ha, more preferably from 50 to 900 g/ha, in particular from 50 to 750 g/ha.
• the application rates of the pesticide are from 0,3 g/ha to 2000 g/ha, preferably 5 g/ha to 2000 g/ha, more preferably from 50 to 900 g/ha, in particular from 50 to 750 g/ha.
• the application rates of the pesticide are from 0.001 to 3 kg/ha, preferably from 0.005 to 2 kg/ha and in particular from 0.01 to 1 kg/ha.
• foliar application of the formulation accord- ing to the present invention is carried out, e.g. by applying the granules according to the present invention to plants or parts of plants.
• Another embodiment of the present invention comprises soil treatment, e.g by applying the granules according to the present invention to the soils before (e.g. by soil drench) or after sowing of the plants or before or after emergence of the plants.
• a further subject of the invention is a method of treating soil by the application, in particular into the seed drill.
• a further subject of the invention is in furrow treatment, which comprises adding the granules according to the present invention to the open furrow, in which seeds have been sown or, alternatively, applying seeds and granules according to the present invention simultaneously to the open furrow.
• the present invention refers to a method of combating pests or undesired vegetation, wherein the granules according to the present invention are applied to seed boxes, preferably seed boxes used in rice cultivation (nursery box treatment).
• seed boxes preferably seed boxes used in rice cultivation (nursery box treatment).
• the application is carried out in the nursery box before transplanting of rice seedling. Then, rice seedling and soil in the box containing granules are transplanted into paddy field.
• the application rate of granules is in general adjusted that it leads to an application rate of pesticide from 5-50Og per nursery box (1 to 100kg per hectar), preferably from 10 to 20Og per nursery box (2g to 40kg per hectar).

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Dentistry (AREA)
• Plant Pathology (AREA)
• Engineering & Computer Science (AREA)
• Pest Control & Pesticides (AREA)
• Agronomy & Crop Science (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Environmental Sciences (AREA)
• Toxicology (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Catching Or Destruction (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40459576

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (1)

Citations (10)

Family Cites Families (2)

• 2009
  • 2009-11-09 WO PCT/EP2009/064800 patent/WO2010055002A1/en active Application Filing
  • 2009-11-09 CN CN200980145328.XA patent/CN102215677B/zh not_active Expired - Fee Related
  • 2009-11-09 KR KR1020117013789A patent/KR20110097840A/ko not_active Application Discontinuation
  • 2009-11-09 JP JP2011535978A patent/JP2012508713A/ja active Pending
  • 2009-11-16 TW TW098138865A patent/TW201021699A/zh unknown

Patent Citations (10)

Non-Patent Citations (4)

Also Published As

Similar Documents

Legal Events