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
  • 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
  • A01N37/18—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 the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
  • A01N37/22—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 the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
  • A01N37/24—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 the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides containing at least one oxygen or sulfur atom being directly attached to the same aromatic ring system
• • 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
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
  • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
• • 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
  • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
  • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
  • A01N57/14—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing aromatic radicals
• • 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
  • A01N2300/00—Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48

Definitions

• the present invention relates to an agricultural and horticulturally useful granular agricultural chemical composition containing 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide and a method for producing the same.
• the present invention relates to an agricultural and horticulturally useful granular agricultural chemical composition having excellent storage stability and a method for producing the same.
• dosage forms such as powders, granules, wettable powders, granular wettable powders, flowable powders, liquids, and emulsions are known as forms of agrochemical formulations.
• the granule is a dosage form in which an agrochemical formulation is directly sprayed, and is used in aspects such as water surface application in a paddy field, breeding box treatment, and soil mixing in a field.
• Pesticide treatment work is simple, does not require water for spraying, and there is no fear of scattering of agricultural chemical active ingredients due to powdering, so it has become the mainstream dosage form in Japan.
• a general aspect of a granular agrochemical composition used as a granule is to mix a pesticide active ingredient and a solid carrier such as clay or calcium carbonate, add water to the mixture obtained above and knead to obtain a predetermined pore size. It is a granular material produced by extruding and granulating using a die having it and then drying. In such granular materials, the contact between the pesticidal active ingredient and the moisture in the environment is limited, so the elution behavior of the pesticidal active ingredient tends to be more slowly released, and the pesticidal activity that requires sustained effect is required. Suitable for ingredients.
• a granular agricultural chemical composition which is a granular material obtained by coating an agricultural chemical active ingredient with a binder on the surface layer of a grain core having an appropriate particle size obtained by crushing or granulating mineral substances.
• a granular material obtained by coating an agricultural chemical active ingredient with a binder on the surface layer of a grain core having an appropriate particle size obtained by crushing or granulating mineral substances.
• the pesticidal active ingredient comes into direct contact with moisture in the environment, the pesticidal active ingredient can be eluted more quickly, and it is suitable for an pesticidal active ingredient that requires quick action.
• the latter granular material in which the former granular material is used as a grain nucleus.
• a person skilled in the art can select and use a suitable granule mode according to the elution pattern required for the pesticidal active ingredient to be blended.
• agricultural and horticultural control targets for agricultural chemical formulations include pests and weeds in addition to diseases, and it is necessary to deal with all of them, but active ingredients for disease control are specialized in disease control and are usually pests. And weeds do not show sufficient control activity.
• pest control active ingredients and weed control active ingredients are specialized for pest control and weed control, respectively. Therefore, in modern agriculture, management of agricultural land and the like is carried out by using a disease control active ingredient for pest control, a pest control active ingredient for pest control, and a weed control active ingredient for weed control. Yes.
• each disease control active ingredient has an effective disease and a disease that is not good.
• compound A 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide (hereinafter, the same substance may be referred to as “compound A” in the present specification) )
• Patent Document 1 shows a remarkable effect on plant diseases such as rice blast, wheat blight, cucumber downy mildew, cucumber anthracnose, etc. It is disclosed. Since this compound A is intended to control and prevent plant diseases over a long period of time required for the growth of crops and the like, the compound A is formulated as a granule as an embodiment. It is preferable to use a granulated product kneaded in the grains together with a solid carrier.
• compound A is a chemically unstable compound and its decomposition may be unnecessarily promoted in the presence of various chemical substances
• the storage stability of compound A in granular agrochemical compositions Improvement was desired.
• a mixed agrochemical granule in which Compound A and other agrochemical active ingredients are used in combination since a plurality of chemical substances coexist intentionally, decomposition of Compound A may be further promoted, which may be a more disadvantageous obstacle. Therefore, it has been difficult to develop a granular agricultural chemical composition having excellent storage stability of Compound A without being affected by these chemical substances.
• an object of the present invention is to provide an agricultural and horticulturally useful granular material having excellent storage stability of 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide. It is providing the agrochemical composition and its manufacturing method.
• the present inventors have earnestly developed a granular agrochemical composition having excellent storage stability of 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide.
• a granular agrochemical composition having an outer layer part formed by using a saccharide that does not crystallize at room temperature on the surface of the grain nucleus contains the compound in the grain nucleus, and solves the above problems. It came to complete.
• the present invention has the following contents.
• a granular agrochemical composition having a grain nucleus and an outer layer part covering the grain nucleus, wherein the grain nucleus is 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzo
• a granular agrochemical composition comprising thiazole-1,1-dioxide and the outer layer portion containing a liquid sugar that is a saccharide that does not crystallize at room temperature.
• an agricultural and horticulturally useful granular agricultural chemical composition having excellent storage stability of 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide Products and methods of manufacturing the same can be provided.
• the granular pesticidal composition of the present invention is a granular pesticidal composition having a grain nucleus and an outer layer portion covering the grain nucleus, wherein the grain nucleus is 3- (3,4-dichloroisothiazol-5-ylmethoxy). It contains -1,2-benzothiazole-1,1-dioxide, and the outer layer portion contains a liquid sugar that is a saccharide that does not crystallize at room temperature.
• the granular agrochemical composition of the present invention suppresses the decomposition of the compound and is excellent in storage stability due to the presence of the outer layer portion containing liquid sugar.
• the granular agrochemical composition of this invention can be used, without impairing the storage stability of the said compound A, also when using as a mixed agrochemical granule with another agrochemical active ingredient.
• the conventional granular agrochemical composition even when other pesticidal active ingredients are coated on the grain nuclei containing the compound A using a conventional binder, the contact opportunity between the compound A and the other pesticidal active ingredients is relatively small. Nevertheless, the storage stability of Compound A was greatly deteriorated.
• the granular agrochemical composition of the present invention contains Compound A in the grain nucleus.
• the content of Compound A is not particularly limited, but is preferably from 0.1 to 8% by mass, more preferably from 0.2 to 4% by mass, based on the whole granular agrochemical composition.
• the grain nuclei containing compound A are, for example, compound A as a mixture with a finely divided solid carrier, and the mixture is stirred and granulated, tumbling granulated, extruded granulated, crushed granulated, fluidized bed granulated It is produced by making a granulated product by a known granulation method such as a granulation method, a compression granulation method, or a vacuum drying granulation method.
• finely divided solid carrier examples include bentonite, clay, kaolin, sericite, talc, acid clay, pumice, zeolite, vermiculite, perlite, calcium carbonate, silica sand and the like. These may be arbitrarily used alone or in combination of two or more.
• the method for granulating the grain nuclei is not particularly limited, but when carrying the pesticidal active ingredient in the outer layer of the grain nuclei, the grain nuclei surface area that determines the amount of the pesticidal active ingredient that can be carried in each grain nucleus.
• An extrusion granulation method is particularly preferable as a method suitable for this purpose, and a granular material obtained by the extrusion granulation method is preferably used as a grain nucleus.
• the shape of the particle nucleus is not particularly limited, but a granular material having an appropriate particle size as an agrochemical granule is preferable, and more specifically, a substantially spherical material having a diameter of 0.1 to 30 mm or a volume sphere equivalent diameter of 0.1 to An irregular shape of 30 mm, a substantially cylindrical shape having a diameter of 0.1 to 5 mm, a length of 1 to 30 mm, and an aspect ratio (length / diameter) of 1 to 10 can be preferably used.
• a substantially cylindrical material having a diameter of 0.3 to 1.7 mm, a length of 0.3 to 10.2 mm, and an aspect ratio of 1 to 6 is preferable, and a diameter of 0.5 to 1.5 mm and a length of 0.5 to 7 are preferable. More preferred is a substantially cylindrical product having a diameter of 0.5 to 1.5 mm and an aspect ratio of 1 to 5, and more preferred is a substantially cylindrical product having a diameter of 0.8 to 1.2 mm, a length of 0.8 to 4.8 mm and an aspect ratio of 1 to 4.
• the above-mentioned grain nuclei may contain auxiliary components such as surfactants, binders, lubricants, and colorants as desired. Furthermore, in the granular agrochemical composition of the present invention, as long as it does not impair the stability of Compound A, it is possible to control the dissolution of a safener, waxes, resins, hydrophobic substances, etc. An agent may be included.
• surfactant examples include alkyl sulfate esters, aryl sulfonates, polyoxyethylene glycol ethers, polyhydric alcohol esters, dialkyl sulfosuccinates, polycarboxylic acids, polyoxyethylene nonylphenyl ether, sodium lignin sulfonate. Etc. These may be arbitrarily used alone or in combination of two or more.
• binder examples include starch, alginic acid, glycerin, polyvinyl pyrrolidone, polyurethane, polyethylene glycol, polypropylene glycol, polybutene, polyvinyl alcohol, gum arabic, liquid paraffin, ethyl cellulose, and polyvinyl acetate. These may be arbitrarily used alone or in combination of two or more.
• lubricant examples include calcium stearate, talc, and silica. These may be arbitrarily used alone or in combination of two or more.
• colorant examples include dyes and pigments. These may be arbitrarily used alone or in combination of two or more.
• Examples of the safener include benoxacor, furilazole, dichlormid, dicyclonone, DKA-24 (N1, N2-diallyl-N2-dichloroacetylglycinamide), AD-67 (4). -Dichloroacetyl-1-oxa-4-azaspiro [4.5] decane), PPG-1292 (2,2-dichloro-N- (1,3-dioxan-2-ylmethyl) -N- (2-propenyl) Acetamide), R-29148 (3-dichloroacetyl-2,2,5-trimethyl-1,3-oxazolidine), croquint set-mexyl, naphthalic anhydride (1,8-Naphthalic Anhydr) de), mefenpyr-diethyl, mefenpyr, mefenpyr-ethyl, fenchlorazole-O-ethyl, fenchlorim, MG-1 -Dichloromethyl-2-methyl-1
• liquid sugar which is a saccharide that does not crystallize at room temperature.
• liquid sugar is generally called molasses.
• sugarcane molasses sugar beet molasses
• refined molasses molasses ice molasses
• invert sugar containing reducing sugar such as sucrose, which are hydrolyzed into glucose and fructose
• examples include those containing invert sugar together with non-reducing sugars such as sugar and sucrose.
• Invert sugar containing reducing sugar that is, invertible liquid sugar containing reducing sugar is preferable.
• the converted liquid sugars those containing 20% or more of reducing sugar are preferred, more preferably those containing 40% or more of reducing sugar, and contain about 50% of reducing sugar, specifically 45 to 54%.
• Liquid sugar is particularly preferred.
• the content of the liquid sugar is not particularly limited and may depend on the amount of the pesticidal active ingredient to be carried on the grain core, but is preferably 0.5 to 5% by mass with respect to the whole granular pesticidal composition, The content is preferably 0.8 to 2% by mass. If the content of the liquid sugar is insufficient, the storage stability of Compound A may be impaired, and when used as a mixed agricultural chemical granule, there is a risk that the function of supporting the agricultural chemical active ingredient on the outer part of the grain core will be insufficient. On the other hand, if the content of liquid sugar is excessive, the granular agrochemical composition may be consolidated.
• the method for forming the outer layer portion containing liquid sugar is not particularly limited, but typically, the grain core is first mixed using a normal mixer such as a concrete mixer or a Nauta mixer. On the other hand, there is a method in which a liquid material containing liquid sugar is added thereto to coat the surface layer of the grain nuclei.
• a normal mixer such as a concrete mixer or a Nauta mixer.
• a liquid material containing liquid sugar is added thereto to coat the surface layer of the grain nuclei.
• the granular agrochemical composition of the present invention is used as a mixed agrochemical granule, the agrochemical active ingredient is then added and supported on the outer part of the grain core.
• Means for solving this problem include a method of heating the liquid material to reduce the viscosity of the liquid sugar, a method of adding a small amount of a solvent such as water to the liquid sugar, and a method of reducing the viscosity of the liquid sugar. be able to.
• the amount of water added is not particularly limited, but it is appropriate that the amount be up to about 30% by mass relative to the total amount of the liquid material.
• liquid composition is excessive in water, that is, a dilute liquid composition
• a pesticide active ingredient can be further contained on the outer layer portion. Only one kind of agrochemical active ingredient can be carried on the outer layer portion, or two or more kinds can be carried simultaneously.
• the agrochemical active ingredient can be carried on the outer layer part of the grain nucleus by the adhesive force of the liquid sugar.
• this powder includes grinding aids such as silica, diatomaceous earth and silica sand, surfactants such as lignin sulfonate, aryl sulfonate and alkyl sulfate, solid carriers such as bentonite, clay and calcium carbonate, alkali Adjuvants such as stabilizers such as metal salts, alkaline earth metal salts, epoxidized oils and fats, and safeners exemplified above can be blended.
• grinding aids such as silica, diatomaceous earth and silica sand, surfactants such as lignin sulfonate, aryl sulfonate and alkyl sulfate, solid carriers such as bentonite, clay and calcium carbonate
• alkali Adjuvants such as stabilizers such as metal salts, alkaline earth metal salts, epoxidized oils and fats, and safeners exemplified above can be blended.
• a known pulverizer can be arbitrarily used, and specifically, an impact pulverizer, an airflow pulverizer, a wet pulverizer, or the like is used. However, it is not particularly limited. In the fine pulverization, it may be pulverized only with an agrochemical active ingredient, or may be mixed with the auxiliary agent in advance and co-ground if desired.
• the pesticidal active ingredient to be carried on the outer layer part is liquid at normal temperature, it may be carried on the outer layer part as it is in the liquid state, or in advance on oil-absorbing fine powders such as silica, silicate, wood powder, microcrystalline cellulose, etc. It can be adsorbed to prepare a powder and can be handled in the same manner as the agrochemical active ingredient that is solid at room temperature.
• the content of the pesticidal active ingredient that can be carried on the outer layer is also not limited, but when there are two or more pesticidal active ingredients relative to the whole granular pesticide composition, the total is usually 0. 0.05 to 5% by mass, preferably 0.1 to 4% by mass, more preferably 0.5 to 3% by mass.
• the active ingredient of the agrochemical is not impaired in stability of the compound A, one or more kinds can be blended in the grain nucleus, but in general, the agrochemical active ingredient contained in the grain nucleus It is presumed that the elution rate of is relatively slow.
• the granular agrochemical composition of the present invention contains an agrochemical active ingredient that is expected to exhibit rapid drug efficacy, it is reasonable to select a design that is supported on the outer layer of the grain core.
• examples of the pesticidal active ingredient that can be contained in the grain core or carried on the outer layer can include those listed below, but are not particularly limited.
• [Insecticide active ingredient] Acrinathrin, Azadirachtin, Azamethiphos, Azinophos-ethyl, Azeinosylacetin, Acequinocetyl (Acephate), azocyclotin, abamectin, afidopyropen, afoxogruer, amidoflumet, amitralzal, alanibal Aldicarb, aldoxycarb, allethrin [including d-cis-trans-form, d-trans-form], isazophos, isamifos, isocaphos, isocaphos, isocaphos (Isoxathion), isofenphos-methyl, isoprocarb, ivermectin, imicyafos, imidacloprid, imiprothrin relate, etiofencarb, etion, ethiprole, etioprote, etioprote, et
• the method for producing a granular agrochemical composition of the present invention comprises a step of producing a grain nucleus containing 3- (3,4-dichloroisothiazol-5-ylmethoxy) -1,2-benzothiazole-1,1-dioxide, And the surface of the grain nucleus obtained at the said process is coat
• the manufacturing method of the granular agrochemical composition of this invention may have the process of carrying
• the step of producing the grain nuclei containing the compound A includes, for example, compound A as a mixture with a finely divided solid carrier, and the mixture is stirred and granulated, tumbling granulation
• the granulation is performed by a known granulation method such as an extrusion granulation method, a crushing granulation method, a fluidized bed granulation method, a compression granulation method, or a vacuum drying granulation method.
• the grain nuclei are first made into a concrete mixer, Nauta. While mixing using a normal mixer such as a mixer, a granular material containing liquid sugar is added thereto to coat the surface layer of the grain core, thereby forming the outer layer portion. If it is difficult to cover the surface layer of the grain core by adding granular material containing liquid sugar, warm the liquid material in advance or add a small amount of solvent such as water to the liquid sugar to increase the viscosity of the liquid material. You may throw in after reducing.
• the pesticidal active ingredient may be added to the outer layer part of the grain nucleus obtained in the step and supported on the outer layer part.
• the pesticidal active ingredient to be carried on the outer layer portion may be used as it is, but it is usually desirable to pulverize it to a particle size of usually 50 ⁇ m or less, preferably 10 ⁇ m or less.
• a known pulverizer can be arbitrarily used. Specifically, an impact pulverizer, an airflow pulverizer, or the like can be used, but it is not particularly limited.
• the pesticidal active ingredient to be carried on the outer layer portion may be pulverized alone, or may be previously mixed with the auxiliary agent and co-ground if desired. Furthermore, when the pesticidal active ingredient is a liquid, it may be preliminarily adsorbed on the oil-absorbing fine powder and prepared in a powder form.
• the granular agrochemical composition of the present invention can be applied to all scenes in application of agrochemicals, but is particularly effective in the scene where it is applied at the seed germination / rooting stage or the seedling growth stage, so-called sowing and seedling raising period.
• the period from the germination period to the time immediately before transplanting corresponds to the sowing and seedling growing season when mixing seedling soil in paddy rice box seedling, before sowing or after covering.
• transplantation simultaneous application has also been developed in recent years, and application to this field is also possible.
• cell tray raising seedlings such as vegetables
• it can be applied from the time of mixing seedling culture soil to the time of transplantation, and particularly preferred are application at the time of sowing and germination, and planting at the time of transplantation.
• cultivation at the sowing and seedling raising stage is usually carried out using seedling cultivation soil, it can also be applied to cultivation other than cultivation soil such as a seedling mat or sheet.
• agrochemical granule for example, direct granulation by hand, human-powered granulator, electric granulator, back type power granulator
• Examples include a traveling power granulator, a tractor-equipped granulator, a rice transplanter-equipped granulator, a side-line application medicine, an unmanned helicopter and the like.
• the physical properties of the granular agrochemical composition of the present invention are preferably within a certain range for various items.
• the apparent specific gravity is preferably 0.3 to 2, more preferably 0.5 to 1.5 in the official agricultural chemical inspection method.
• the hardness of the grains is preferably 20 or less, more preferably 10 or less in the whole agricultural ball mill method. It is preferable that the particle size is 90% by mass or more of the whole granular composition that passes through a sieve having an opening of 1700 ⁇ m and does not pass through a sieve having an opening of 300 ⁇ m.
• the diameter of the cross-sectional circle is usually 0.3 to 1.7 mm, preferably 0.5 to 1.5 mm, more preferably 0.8. 8 to 1.2 mm.
• the grain length corresponding to the height of the cylinder is preferably 0.5 to 6 times the diameter of the cross-sectional circle.
• a seedling box drug spraying device (beauty Good, Model KS-25: Roller-type granulator), Seed box medicine hopper (Suzutec, Model SDP-33S, SDP-103S: Roller-type granulator), Pot nursery box medicine device (Minoru Industry Co., Ltd.) Manufactured, type MPA-21: roller type granulator), particles having a grain length of 2.5 times or more with respect to the cross-sectional circle diameter should be 50% by mass or less of the whole granular composition. Is more preferable, and 40% by mass or less is more preferable.
• the application amount of the granular agrochemical composition of the present invention is 0.1 to 20 kg per 10 ares, preferably 0.2 to 5 kg in the case of paddy fields and upland fields. It is 10 to 200 g, preferably 10 to 100 g, per box (usually 0.16 m 2 ). Moreover, when applying to a cell tray, the application amount of about 30g per cell tray (128 holes) may be sufficient.
• the “minor axis” refers to the cross-sectional circle diameter of the substantially cylindrical granulated product
• the “aspect ratio” refers to the quotient obtained by dividing the grain length of the approximately cylindrical granulated product by the minor axis.
• Example 1 After adding a predetermined amount of water to 2 parts of Compound A, 0.35 parts of alkylbenzene sulfonate, 3 parts of pregelatinized starch and 90.45 parts of clay and kneading, a basket ruser equipped with a screen having a pore diameter of 1.2 mm was used. Extrusion granulation was performed, and the granulated product was dried to obtain a grain core having a substantially cylindrical shape with a minor axis of 1.2 mm and an aspect ratio of about 3.
• Example 2 After adding a predetermined amount of water to 2 parts of Compound A, 0.35 parts of alkylbenzene sulfonate, 3 parts of pregelatinized starch and 90.45 parts of clay and kneading, a basket ruser equipped with a screen having a pore diameter of 1.2 mm was used. Extrusion granulation was performed, and the granulated product was dried to obtain a grain core having a substantially cylindrical shape with a minor axis of 1.2 mm and an aspect ratio of about 3.
• Example 3 While mixing 97 parts of the granular agricultural chemical composition obtained in Example 1 with a Nauta mixer, 3 parts of mepronil finely pulverized with an airflow type pulverizer was added and supported on the outer part of the grain core, thereby being coated with liquid sugar. A granular agrochemical composition having an outer layer portion of the grain core and carrying mepronil in the outer layer portion of the grain nucleus was obtained.
• Example 4 While mixing 97 parts of the granular pesticidal composition obtained in Example 1 with a Nauta mixer, a dispersion which is a mixture of 3 parts of pyribencarb finely pulverized with a wet pulverizer and 7 parts of water is added and supported on the outer part of the grain core By removing the water of the dispersion by drying, a granular agrochemical composition having a grain core outer layer part coated with liquid sugar and carrying pyribencarb on the grain core outer layer part was obtained.
• Example 5 While mixing 97 parts of the granular agricultural chemical composition obtained in Example 1 with a Nauta mixer, a mixture of 1.5 parts of Bench Abaricarb isopropyl and 1.5 parts of clay finely pulverized with an airflow type pulverizer was added. By carrying it on the outer part of the grain core, a granular agrochemical composition having an outer part of the grain core coated with liquid sugar and carrying Bench Avaricarb isopropyl on the outer part of the grain core was obtained.
• Example 6 While mixing 97 parts of the granular pesticide composition obtained in Example 2 with a Nauta mixer, 3 parts of mepanipyrim finely pulverized with an impact pulverizer was added and supported on the outer part of the grain core, thereby being coated with liquid sugar. A granular agrochemical composition having an outer layer part of the grain core and carrying mepanipyrim in the outer layer part of the grain nucleus was obtained.
• Example 7 While mixing 97 parts of the granular agrochemical composition obtained in Example 2 with a Nauta mixer, 3 parts of iprobenphos was added and supported on the outer part of the grain core, thereby having the outer part of the grain core coated with liquid sugar. A granular agrochemical composition carrying iprobenphos on the outer layer of the grain core was obtained.
• Example 8 While mixing 97 parts of the granular pesticide composition obtained in Example 2 with a Nauta mixer, 3 parts of phenothiocarb finely pulverized with an airflow type pulverizer was added and supported on the outer part of the grain core, thereby being coated with liquid sugar. A granular agrochemical composition having an outer layer part of the grain core and carrying phenothiocarb in the outer layer part of the grain nucleus was obtained.
• a liquid material obtained by mixing a small amount of water with 1.2 parts of lignin sulfonate was added to coat the surface layer of the grain nuclei, and the liquid substance was dried by drying. By removing the water, a granular agrochemical composition having an outer layer part of a grain core coated with lignin sulfonate was obtained.
• a liquid material obtained by mixing a small amount of water with 1.2 parts of polyvinyl alcohol is added to coat the surface layer of the grain nuclei, and the liquid water is dried by drying. Was removed to obtain a granular agrochemical composition having an outer layer part of a grain core coated with polyvinyl alcohol.
• a liquid material obtained by mixing a small amount of water with 1.2 parts of carboxymethyl cellulose is added to coat the surface layer of the grain nuclei, and the liquid water is dried by drying. Was removed to obtain a granular agrochemical composition having an outer layer part of a grain core coated with carboxymethylcellulose.
• a liquid material obtained by mixing a small amount of water with 1.2 parts of methylcellulose is added to cover the surface layer of the grain nuclei, and the liquid water is dried by drying. By removing, a granular agrochemical composition having a grain core outer layer part coated with methylcellulose was obtained.
• a liquid material obtained by mixing a small amount of water with 0.2 part of glyoxylic acid is added to coat the surface layer of the grain nuclei, and the liquid water is dried by drying. Was removed to obtain a granular agrochemical composition having an outer layer part of a grain core coated with glyoxylic acid.

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