WO2013094440A1 - Solid pesticide preparation - Google Patents

Solid pesticide preparation Download PDF

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Publication number
WO2013094440A1
WO2013094440A1 PCT/JP2012/081863 JP2012081863W WO2013094440A1 WO 2013094440 A1 WO2013094440 A1 WO 2013094440A1 JP 2012081863 W JP2012081863 W JP 2012081863W WO 2013094440 A1 WO2013094440 A1 WO 2013094440A1
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Prior art keywords
activated carbon
solid
condition
preparation
less
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PCT/JP2012/081863
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French (fr)
Japanese (ja)
Inventor
尚己 津田
水谷 基文
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住友化学株式会社
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Publication of WO2013094440A1 publication Critical patent/WO2013094440A1/en

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/08Biocides, 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 containing solids as carriers or diluents
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/12Powders or granules

Definitions

  • the present invention relates to a solid agrochemical preparation containing an agrochemical active ingredient and activated carbon.
  • Patent Documents 1 to 4 Agrochemical formulations containing an agrochemical active ingredient and activated carbon are described in Patent Documents 1 to 4, for example.
  • An object of the present invention is to provide a solid agrochemical formulation that sufficiently exhibits the agrochemical activity of an agrochemical active ingredient in paddy fields.
  • Condition (1) The value of the following formula is 0.0001 or more and less than 0.004. Content of active agrochemical ingredient (g) / ⁇ the activated carbon content (g) ⁇ the specific surface area of the activated carbon (m 2 / g) ⁇ Condition (2): The density is 0.8 (g / cm 3 ) or more. [2] The solid agrochemical formulation of the above-mentioned item [1], wherein the value of the formula of condition (1) is 0.0002 or more and less than 0.004.
  • the preparation of the present invention is a precipitating preparation that settles after being applied to paddy fields, and has a relatively low water solubility and exhibits sufficient pesticide activity in paddy fields even if it contains agrochemical active ingredients that are easily adsorbed to soil. It is.
  • a solid agrochemical formulation containing an agrochemical active ingredient that is easily decomposed into light may not be able to obtain the desired agrochemical activity because the agrochemical active ingredient is decomposed before it exhibits agrochemical activity after being applied to paddy fields.
  • the invention preparation is an excellent preparation that, when containing an active ingredient of agricultural chemicals that are easily decomposed by light, reduces the photodegradation, and as a result, exhibits and sustains sufficient agricultural chemical activity.
  • the preparation of the present invention contains a specific agricultural chemical active ingredient.
  • the agrochemical active ingredient used in the preparation of the present invention has a water solubility at 20 ° C. of 5% by weight or less and a soil adsorption constant Koc of 50 or more.
  • the agrochemical active ingredients those having a water solubility at 20 ° C. of 1% by weight or less and / or those having a soil adsorption constant Koc of 80 or more are preferable.
  • the upper limit of the soil adsorption constant Koc is not particularly limited, but is usually 4000 or less.
  • the soil adsorption constant Koc is a kind of numerical value indicating the soil adsorptivity of a chemical substance, and is a value obtained by dividing the drug adsorption amount per unit soil amount by the drug concentration in the soil solution in equilibrium with the soil. It is a value obtained by dividing the adsorption coefficient Kd by the organic carbon content in the soil, and is a numerical value representing the strength to be adsorbed on the soil.
  • pesticide active ingredient examples include clothianidin, imidacloprid, acetamiprid, thiacloprid, thiamethoxam, sulfoxafurol, flupirazifuron, fipronil, ethiprole, cyantraniliprole, spinosad, spinetoram, pymetrozine, probenazole, pyroxylone, orizastrobin, azoxystrobin, Examples thereof include thiophanate methyl, tricyclazole, diclocimet, isotianil, carpropamide, tifluzamide, furametopyl, penflufen and the like.
  • the preparation of the present invention contains activated carbon.
  • Examples of the activated carbon used in the preparation of the present invention include the following. Volume average particle diameter: Usually 0.1 ⁇ m to 500 ⁇ m, preferably 1 ⁇ m to 200 ⁇ m, more preferably 2 ⁇ m to 150 ⁇ m Bulk density: Usually 0.1 to 0.9 g / cm 3 Specific surface area: Usually 500 to 2000 (m 2 / g), preferably 800 to 1600 (m 2 / g) The preparation of the present invention satisfies the following conditions (1) and (2).
  • Condition (1) The value calculated by the following formula is 0.0001 or more and less than 0.004.
  • the density is 0.8 (g / cm 3 ) or more.
  • the specific surface area of the activated carbon in the present invention can be measured using a specific surface area measuring machine. Examples of the specific surface area measuring machine include Nova e, Autosorb iQ, PoreMaster, Quadrasorb SI, Aquadyne DVS (all manufactured by Spectris Co., Ltd.), SA3100 (manufactured by Beckman Coulter, Inc.), Adsotra DN-04 (manufactured by Nikkiso Co., Ltd.), Trie.
  • the apparatus examples include Star 3020II (manufactured by Shimadzu Corporation).
  • the value of the condition (1) is preferably 0.0002 or more and less than 0.004, and more preferably 0.0002 or more and less than 0.002.
  • the density of the preparation of the present invention is 0.8 (g / cm 3 ) or more.
  • the density of the formulation of the present invention is calculated by randomly extracting 100 samples from the formulation of the present invention, measuring the weight and volume of each, and dividing the weight by the volume. And it can confirm by calculating
  • the volume of the preparation of the present invention can be calculated by measuring the length using calipers.
  • the upper limit of the density of the preparation of the present invention is not particularly limited, but is usually 2.0 (g / cm 3 ) or less.
  • the density of the preparation of the present invention is preferably in the range of 0.8 to 1.5 (g / cm 3 ).
  • the present invention can also contain the following agrochemical active ingredients as required.
  • Phenoxy fatty acid-based herbicidal compounds [MCP, MCPB, phenothiol, mecoprop, fluroxypyr, triclopyr, clomeprop, naproanilide (naroanilide)
  • Benzoic acid herbicidal compounds [2,3,6-TBA, clopyralid, picloram, aminopyralid, quinclorac, quinmerac, etc.]
  • Urea herbicidal compounds [diuron, linuron, chlortoluron, isoproturon, fluometuron, isouron, tebuthiuron, tebuthiuron, tebuthiuron methabenzthiazuron, cumyluron, diimuron, methyl-daimuron, etc.]
  • Triazine-based herbicidal compounds [ametrine, cyanazine, simazine, propazine, simetrin, dimetamethrin, bromome
  • Cyclic imide-based herbicidal compounds [oxadiazon, cinidon-ethyl, carfentrazone-ethyl, sulfentrazone, flumicrolac-pentyl , Pyraflufen-ethyl, oxadiargyl (oxadiargyl), pentoxazone, fluthiacet-methyl, butafenacil, benzfendizon, etc.
  • Aryloxyphenoxypropionic acid herbicidal compounds [cyhalofop-butyl, diclohop-methyl, phenoxaprop-ethyl, fluazifop-butyl ), Haloxyhop-methyl, quizalofop-ethyl, metamihop, etc.]
  • Trione oxime-based herbicidal compounds [aloxydim-sodium, cetoxydim, butroxydim, crestodim, cloproxidim, cycloxidimy] , Tralcoxydim, profoxydim, etc.]
  • Sulfonylurea-based herbicidal compounds [chlorsulfuron, sulfomethuron-methyl, metsulfuron-methyl, tribenuron-methyl, trisulfuron (trisulfuron-methyl) triasulfuron, bensulfuron-methyl, thifensulfuron-methyl, pyrazosulfuron-eth
  • a plant growth regulator for example, hymexazole (hymexazole), paclobutrazole (paclobutrazol), uniconazole-P (uniconazole-P), inabenfide (inabenfide), prohexadione calcium (prohexadione-calcium) and the like.
  • the preparation of the present invention can further contain formulation aids such as surfactants, solid carriers, binders, stabilizers, pigments and the like as required, as long as the effects of the present invention are not affected.
  • these preparation aids may be used alone or in combination of two or more.
  • surfactants examples include polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl phenol ether, polyoxyethylene lanolin alcohol, polyoxyethylene alkylphenol formalin condensate, polyoxyethylene sorbitan fatty acid ester, Polyoxyethylene glyceryl mono fatty acid ester, polyoxypropylene glycol mono fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene castor oil derivative, polyoxyethylene fatty acid ester, higher fatty acid glycerin ester, sorbitan fatty acid ester, sucrose fatty acid ester, Polyoxyethylene polyoxypropylene block polymer, polyoxyethylene fatty acid Bromide, alkylolamides, nonionic surfactants such as polyoxyethylene alkylamine; Alkylamine hydrochloride such as dodecylamine hydrochloride, dodecyltrimethylammonium salt, alkyldimethylbenzylam
  • the total content of the surfactant is usually 0.1 to 5.0% by weight, preferably 0.5 to 3.0% by weight.
  • the solid carrier include mineral carriers.
  • the mineral carrier include kaolin minerals such as kaolinite, dickanite, nacrite, and halosite, serpentine such as chrysotile, lizarite, anticorite, and amethite, bentonite.
  • Saponite hectorite, saconite, hydelite, etc., smectite, pyrophyllite, talc, wax, mica, fengite, sericite, illite, mica, cristobalite, quartz, etc., hydrous silicic acid, such as attapulgite, sepiolite
  • the total content of the solid carrier is usually 10 to 90% by weight, preferably 15 to 70% by weight.
  • the dosage form of the preparation of the present invention include granules, wettable powders, granular wettable powders, jumbo drugs and the like.
  • the formulation of the present invention which is a granule (hereinafter referred to as the present granule) is, for example, kneaded with a mixture of an agricultural chemical active ingredient, activated carbon, a surfactant, a solid carrier, water and other components as necessary.
  • the obtained kneaded product is granulated, the granulated product is dried, and pulverized, sieved, or sized as necessary.
  • a method for preparing the above mixture a method of adding water to a mixture containing an agrochemical active ingredient, activated carbon, a surfactant, a solid carrier, and other formulation aids, an agrochemical active ingredient, activated carbon, a solid carrier, etc.
  • examples thereof include a method of preparing a powder mixture and a kneading liquid containing a surfactant and water, and then mixing the powder mixture and the kneading liquid.
  • a kneader may be used, and examples of the kneader include a kneader, a Nauter mixer, and a Redige mixer.
  • Examples of the method for granulating the kneaded product include an extrusion granulation method using an extrusion granulator.
  • the extrusion granulation method in the production of the granule of the present invention can be carried out by an ordinary method as the extrusion granulation method.
  • the extrusion granulation is usually performed using a screen having holes of 0.5 to 2.0 mm ⁇ , preferably 0.7 to 1.5 mm ⁇ .
  • the granulated product after extrusion granulation is usually dried at 30 to 90 ° C, preferably 50 to 80 ° C.
  • the granules of the present invention produced by extrusion granulation usually have a grain length in the range of 0.5 to 6.0 mm, preferably 0.7 to 4.0 mm.
  • extrusion granulator examples include a screw-type extrusion granulator, a roll-type extrusion granulator, a disk pelleter-type extrusion granulator, a pellet mill-type extrusion granulator, a basket-type extrusion granulator, and a plate-type extrusion granulator.
  • examples thereof include a granulator, an oscillating extrusion granulator, a gear type extrusion granulator, and a ring die type extrusion granulator.
  • extrusion granulators include Twin Dome Gran, Dome Gran, Basket Reuser, Pelleter Double (all are trade names of Dalton Co., Ltd.), and field type granulators (trade names of Hata Iron Works Co., Ltd.). It is done.
  • the pulverization and sizing method include a method of wet sizing the material granulated by extrusion with a Malmerizer (Dalton Co., Ltd.), and a method of dry sizing the dried particles with a pulverizer such as a pin mill. .
  • formulation examples are shown.
  • what was used in the formulation example has the same name as described above unless otherwise specified.
  • formula agrochemical active ingredient content (g) / ⁇ the activated carbon content (g) ⁇ the specific surface area of the activated carbon (m 2 / g) ⁇ The value calculated in is referred to as “granules parameters”.
  • toxanone GR-31A polycarboxylic acid manufactured by Sanyo Chemical Industries, Ltd.
  • 0.25 g of neocor SW-CP dialkylsulfosuccinate manufactured by Daiichi Kogyo Seiyaku Co., Ltd.
  • 5.25 g of ion-exchanged water were mixed.
  • a kneading liquid was obtained.
  • the powder mixture and the kneading liquid were mixed and kneaded well.
  • the obtained kneaded product was extruded from a stainless steel screen having a diameter of 1.0 mm and dried at 80 ° C. to obtain granules containing 10% clothianidin.
  • Granule parameters were obtained in the same manner as in Formulation Example 1, except that the barite in Formulation Example 1 was changed to Clay S.
  • Formulation Example 3 7.35 g of clothianidin bulk powder in Formulation Example 1, 2.5 g of KD-PWSP, 13 g of Kunigel V1, 25.9 g of barite, 1 g of toxanone GR-31A, 0.25 g of Neocor SW-CP, and 5.25 g of ion-exchanged water.
  • Imidacloprid manufactured by Wako Pure Chemical Industries, Ltd.
  • KD-PWSP 0.3 g
  • Kunigel V1 1.3 g
  • barite 2.78 g
  • Toxanone GR-31A 0.1 g
  • Granules were obtained in the same manner as in Formulation Example 1, except that 013 g and 0.71 g of ion-exchanged water were used.
  • Granule parameters 0.0016 Granule density: 0.92 (g / cm 3 )
  • Formulation Example 4 Formulation Example 1 except that 2.5 g of KD-PWSP and 25.9 g of barite in Formulation Example 1 were used instead of 1 g of Kuraray Coal PK-D (activated carbon manufactured by Kuraray Chemical Co., Ltd.) and 27.4 g of barite. Granules were obtained in the same manner.
  • Granule parameters 0.0033 Granule density: 0.91 (g / cm 3 )
  • Formulation Example 5 KD-PWSP 5 g, barite 23.4 g, and ion-exchanged water 8.7 g were used instead of 2.5 g of KD-PWSP in Formulation Example 1 and 25.9 g of barite and 5.25 g of ion-exchanged water. Granules were obtained in the same manner as in Formulation Example 1.
  • Granule parameters 0.0008 Granule density: 0.9 (g / cm 3 ) Formulation Example 6 Except for using KD-PWSP 20 g, barite 8.4 g and ion-exchanged water 8.7 g instead of KD-PWSP 2.5 g, barite 25.9 g and ion-exchanged water 5.25 g in Formulation Example 1. Granules were obtained in the same manner as in Formulation Example 1.
  • Granule parameters 0.004 Granule density: 0.92 (g / cm 3 )
  • Comparative Formulation Example 5 7.35 g of clothianidin bulk powder in Formulation Example 1, 2.5 g of KD-PWSP, 13 g of Kunigel V1, 25.9 g of barite, 1 g of toxanone GR-31A, 0.25 g of Neocor SW-CP, and 5.25 g of ion-exchanged water.
  • Dinotefuran manufactured by Wako Pure Chemical Industries 0.17 g, KD-PWSP 0.08 g, Kunigel V1 0.43 g, barite 0.96 g, Toxanone GR-31A 0.03 g, Neocor SW-CP 0.01 g, Ion Granules were obtained in the same manner as in Formulation Example 1 except that the water content was changed to 0.12 g.
  • Granule parameters 0.0016 Granule density: 0.92 (g / cm 3 ) Comparative Formulation Example 6 Instead of 2.5 g of KD-PWSP, 25.9 g of barite and 5.25 g of ion-exchanged water in Formulation Example 1, 1 g of Kuraray Coal PDX-2 (activated carbon made by Kuraray Chemical Co., Ltd.), 27.4 g of barite and ions Granules were prepared in the same manner as in Formulation Example 1 except that 8.7 g of exchange water was used. Granule parameters; 0.0056 Granule density: 0.91 (g / cm 3 ) Next, test examples are shown.
  • Test example 1 69 g of sterilized soil was put in a glass petri dish with a height of 8.5 cm and a diameter of 5.5 cm, and 170 g of ion-exchanged water was poured. Thereafter, 17 mg of granules (test preparation) obtained by the above preparation examples and comparative preparation examples were added to a glass petri dish. The glass petri dish was placed in a light resistance tester (Q-SUN; manufactured by Q-Lab), and irradiated with xenon light at a test temperature: 34 ° C., radiation intensity: 0.68 (w / m 2 ) at 340 nm.
  • Q-SUN light resistance tester
  • Test example 2 69 g of sterilized soil was put in a glass petri dish with a height of 8.5 cm and a diameter of 5.5 cm, and 170 g of ion-exchanged water was poured. Thereafter, 17 mg of granules (test preparation) obtained by the above preparation examples and comparative preparation examples were added to a glass petri dish.
  • the glass petri dish was placed in a light resistance tester (Q-SUN; manufactured by Q-Lab), and irradiated with xenon light at a test temperature: 34 ° C., radiation intensity: 0.68 (w / m 2 ) at 340 nm.
  • the amount of the pesticidal active ingredient (clothianidin, imidacloprid or dinotefuran) remaining in the glass petri dish after 96 hours of irradiation was analyzed by HPLC, and the residual ratio of the pesticidal active ingredient was confirmed. The results are shown in Table 2.
  • Test Example 3 Rice seedlings were transplanted into the paddy field, and immediately after that, the test preparation was sprayed onto the paddy field at a rate of 500 g / 10a. The seedlings were grown and the degree of damage caused by rice rotifers was determined 49 days after transplantation. The damage degree was determined by the following method. ⁇ Food damage determination method> 100 rice plants sprayed with the test preparations were randomly extracted on the survey day, and the degree of damage caused by rice rotifers was visually observed for each rice strain, and the following five levels of damage were evaluated. Assuming that A, B, C, D, and E were used, the food damage level was calculated using the following equation.
  • the formulation of the present invention is an excellent formulation in which the pesticidal active ingredient is not easily decomposed into light after being applied to paddy fields and the pesticidal activity is sufficiently exhibited.

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  • General Health & Medical Sciences (AREA)
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Abstract

The present invention pertains to a solid pesticide preparation that contains activated carbon and an active pesticide ingredient for which the aqueous solubility at 20°C is 5 wt% or less and a soil adsorption constant (Koc) is 50 or higher, and that satisfies a condition (1) and a condition (2). Condition (1): The value given by the formula "active pesticide ingredient content (g)/{activated carbon content(g) × activated carbon specific surface area (m2/g)}" is from 0.0001 to less than 0.004. Condition (2): The density is 0.8 (g/cm3) or greater. This solid pesticide preparation, despite containing an active pesticide ingredient that is less soluble in water and is readily adsorbed by soil, fully exhibits pesticidal activity in a paddy field and, when containing an active pesticide ingredient that is readily degraded by light, has reduced photodegradation and is consequently an excellent preparation that exhibits and sustains full pesticidal activity.

Description

固形農薬製剤Solid agrochemical formulation
 本発明は、農薬有効成分及び活性炭を含有する固形農薬製剤に関する。 The present invention relates to a solid agrochemical preparation containing an agrochemical active ingredient and activated carbon.
 農薬活性成分と活性炭とを含有する農薬製剤は例えば特許文献1~4に記載されている。 Agrochemical formulations containing an agrochemical active ingredient and activated carbon are described in Patent Documents 1 to 4, for example.
特開昭56−169601JP 56-169601 特開昭61−197503JP 61-197503 特開平5−331011JP 5-331101A 特開2000−143402JP 2000-143402 A
 本発明は、水田において農薬有効成分の農薬活性が十分に発揮される固形農薬製剤を提供することを課題とする。 An object of the present invention is to provide a solid agrochemical formulation that sufficiently exhibits the agrochemical activity of an agrochemical active ingredient in paddy fields.
 従来より農薬有効成分を含有する多くの固形農薬製剤が開発され、使用されている。しかしながら、これらの固形農薬製剤は水田等に施用されたときには農薬有効成分が保有する本来の農薬活性が発揮され得ない場合があった。
 そこで本発明者らは種々検討した結果、このような農薬有効成分と活性炭とを一定条件を満たすように含有させた固形農薬製剤が水田に施用されたときに十分な農薬活性を発揮することを見出した。
 本発明を以下に示す。
[1]
 20℃における水溶解度が5重量%以下であり、かつ、土壌吸着定数Kocが50以上である農薬有効成分と、活性炭とを含有し、以下の条件(1)および条件(2)を満たす固形農薬製剤(以下、本発明製剤と記す。)。
 条件(1):以下の式の値が0.0001以上0.004未満である。
該農薬有効成分含有量(g)/{該活性炭含有量(g)×該活性炭の比表面積(m/g)}
 条件(2):密度が0.8(g/cm)以上である。
[2]
 条件(1)の式の値が0.0002以上0.004未満である上記項[1]記載の固形農薬製剤。
[3]
 条件(1)の式の値が0.0002以上0.002未満である上記項[1]記載の固形農薬製剤。
[4]
 硫酸バリウムを含有する上記項[1]~[3]のいずれか一項に記載の固形農薬製剤。
[5]
 農薬有効成分がクロチアニジン及び/又はイミダクロプリドである上記項[1]~[4]のいずれか一項に記載の固形農薬製剤。
[6]
 農薬有効成分がクロチアニジンである上記項[1]~[4]のいずれか一項に記載の固形農薬製剤。
[7]
 粒剤である上記項[1]~[6]のいずれか一項に記載の固形農薬製剤。
 本発明製剤は水田に施用された後沈降する沈降性製剤であり、水溶解度が比較的低く、土壌に吸着し易い農薬有効成分を含有していても水田中で農薬活性が十分発揮される製剤である。光に分解され易い農薬有効成分を含有する固形農薬製剤は水田に施用された後農薬活性を発揮する前に農薬有効成分が分解されてしまい所望の農薬活性が得られないことがあるが、本発明製剤はそのような光に分解され易い農薬有効成分を含有している場合はその光分解が軽減され、その結果十分な農薬活性を発揮・持続する優れた製剤である。
Many solid agrochemical formulations containing agrochemical active ingredients have been developed and used. However, when these solid agrochemical formulations are applied to paddy fields or the like, the original agrochemical activity possessed by the agrochemical active ingredient may not be exhibited.
Therefore, as a result of various studies, the present inventors have shown that a solid agrochemical formulation containing such an agrochemical active ingredient and activated carbon so as to satisfy certain conditions exhibits sufficient agrochemical activity when applied to paddy fields. I found it.
The present invention is shown below.
[1]
A solid agricultural chemical containing a pesticide active ingredient having a water solubility at 20 ° C. of 5% by weight or less and a soil adsorption constant Koc of 50 or more and activated carbon, and satisfying the following conditions (1) and (2): Formulation (hereinafter referred to as the present formulation).
Condition (1): The value of the following formula is 0.0001 or more and less than 0.004.
Content of active agrochemical ingredient (g) / {the activated carbon content (g) × the specific surface area of the activated carbon (m 2 / g)}
Condition (2): The density is 0.8 (g / cm 3 ) or more.
[2]
The solid agrochemical formulation of the above-mentioned item [1], wherein the value of the formula of condition (1) is 0.0002 or more and less than 0.004.
[3]
The solid agrochemical formulation of the above item [1], wherein the value of the formula of condition (1) is 0.0002 or more and less than 0.002.
[4]
The solid agricultural chemical preparation according to any one of the above items [1] to [3], which contains barium sulfate.
[5]
The solid agricultural chemical preparation according to any one of the above items [1] to [4], wherein the active agricultural chemical ingredient is clothianidin and / or imidacloprid.
[6]
The solid agrochemical formulation according to any one of the above items [1] to [4], wherein the agrochemical active ingredient is clothianidin.
[7]
The solid agricultural chemical preparation according to any one of the above items [1] to [6], which is a granule.
The preparation of the present invention is a precipitating preparation that settles after being applied to paddy fields, and has a relatively low water solubility and exhibits sufficient pesticide activity in paddy fields even if it contains agrochemical active ingredients that are easily adsorbed to soil. It is. A solid agrochemical formulation containing an agrochemical active ingredient that is easily decomposed into light may not be able to obtain the desired agrochemical activity because the agrochemical active ingredient is decomposed before it exhibits agrochemical activity after being applied to paddy fields. The invention preparation is an excellent preparation that, when containing an active ingredient of agricultural chemicals that are easily decomposed by light, reduces the photodegradation, and as a result, exhibits and sustains sufficient agricultural chemical activity.
 本発明製剤は特定の農薬有効成分を含有する。本発明製剤に用いられる農薬有効成分は20℃における水溶解度が5重量%以下であり、かつ、土壌吸着定数Kocが50以上である。該農薬有効成分の中では20℃における水溶解度が1重量%以下であるもの、及び/又は、土壌吸着定数Kocが80以上であるものが好ましい。尚、土壌吸着定数Kocはその上限は特に限定されないが、通常4000以下である。
 尚、土壌吸着定数Kocとは化学物質の土壌吸着性を示す数値の一種であり、単位土壌量当りの薬剤吸着量を土壌と平衡状態にある土壌溶液中の薬剤濃度で除した値である土壌吸着係数Kdを土壌中の有機炭素含有率で除した値であり、土壌に吸着する強弱を表す数値である。The Pesticide manual等に記載されている。
 該農薬有効成分としては例えば、クロチアニジン、イミダクロプリド、アセタミプリド、チアクロプリド、チアメトキサム、スルホキサフロール、フルピラジフロン、フィプロニル、エチプロール、シアントラニリプロール、スピノサド、スピネトラム、ピメトロジン、プロベナゾール、ピロキロン、オリサストロビン、アゾキシストロビン、チオファネートメチル、トリシクラゾール、ジクロシメット、イソチアニル、カルプロパミド、チフルザミド、フラメトピル、ペンフルフェン等が挙げられる。
 本発明製剤は活性炭を含有する。本発明製剤において用いられる活性炭としては、以下のものが挙げられる。
 体積平均粒径:通常0.1μm~500μm、好ましくは1μm~200μm、より好ましくは、2μm~150μm
 かさ密度:通常0.1~0.9g/cm
 比表面積:通常500~2000(m/g)、好ましくは、800~1600(m/g)
 本発明製剤は、以下の条件(1)および条件(2)を満たす。
 条件(1):以下の式で算出される値が0.0001以上0.004未満である。
該農薬有効成分含有量(g)/{該活性炭含有量(g)×該活性炭の比表面積(m/g)}
 条件(2):密度が0.8(g/cm)以上である。
 本発明における活性炭の比表面積は比表面積測定機を用いて測定することができる。比表面積測定機としては、例えば、Nova e、Autosorb iQ、PoreMaster、Quadrasorb SI、Aquadyne DVS(全てスペクトリス株式会社製)、SA3100(ベックマンコールター社製)、Adsotrac DN−04(日機装株式会社製)、トライスター3020II(島津製作所製)等の機器が挙げられる。
 本発明製剤の中では条件(1)の値が0.0002以上0.004未満であるものが好ましく、0.0002以上0.002未満であるものがより好ましい。
 本発明製剤の密度は0.8(g/cm)以上である。
 本発明製剤の密度は、本発明製剤の中から無作為に100個抽出し、それぞれについて重量と体積とを測定して該重量を該体積で除することにより本発明製剤1個の密度を算出し、それらの平均値を求めることにより確認することができる。尚、本発明製剤の体積はノギスを用いて長さを測定して算出することができる。
 本発明製剤の密度はその上限は特に限定されないが、通常2.0(g/cm)以下である。また本発明製剤の密度は0.8~1.5(g/cm)の範囲が好ましい。
 本発明には必要に応じて、以下の農薬有効成分も含有させることができる。
(1)フェノキシ脂肪酸系除草性化合物[MCP、MCPB、フェノチオール(phenothio1)、メコプロップ(mecoprop)、フルロキシピル(fluroxypyr)、トリクロピル(triclopyr)、クロメプロップ(clomeprop)、ナプロアニリド(naproanilide)等]、
(2)安息香酸系除草性化合物[2,3,6−TBA、クロピラリド(clopyralid)、ピクロラム(picloram)、アミノピラリド(aminopyralid)、キンクロラック(quinclorac)、キンメラック(quinmerac)等]、
(3)尿素系除草性化合物[ジウロン(diuron)、リニュロン(linuron)、クロルトルロン(chlortoluron)、イソプロツロン(isoproturon)、フルオメツロン(fluometuron)、イソウロン(isouron)、テブチウロン(tebuthiuron)、メタベンズチアズロン(methabenzthiazuron)、クミルロン(cumy1uron)、ダイムロン(daimuron)、メチルダイムロン(methyl−daimuron)等]、
(4)トリアジン系除草性化合物[アメトリン(ametoryn)、シアナジン(cyanazine)、シマジン(simazine)、プロパジン(propazine)、シメトリン(simetryn)、ジメタメトリン(dimethametryn)、プロメトリン(prometryn)、メトリブジン(metribuzin)、トリアジフラム(triaziflam)、アトラジン(atrazine)等]、
(5)ビピリジニウム系除草性化合物[パラコート(paraquat)、ジクワット(diquat)等]、
(6)ヒドロキシベンゾニトリル系除草性化合物[ブロモキシニル(bromoxynil)、アイオキシニル(ioxynil)等]、
(7)ジニトロアニリン系除草性化合物[ペンディメタリン(pendimethalin)、プロジアミン(prodiamine)、トリフルラリン(trifluralin)等]、
(8)有機リン系除草性化合物[アミプロホスメチル(amiprofos−methyl)、ブタミホス(butamifos)、ベンスリド(bensu1ide)、ピペロホス(piperophos)、アニロホス(anilofos)、グルホシネート(glufosinate)、ビアラホス(bialaphos)等]、
(9)カーバメート系除草性化合物[ジアレート(di−allate)、トリアレート(tri−allate)、EPTC、ブチレート(butylate)、ベンチオカーブ(benthiocarb)、エスプロカルブ(esprocarb)、モリネート(molinate)、ジメピペレート(dimepiperate)、スエップ(swep)、クロルプロファム(chlorpropham)、フェンメディファム(phenmedipham)、フェニソファム(phenisopham)、ピリブチカルブ(pyributicarb)、アシュラム(asulam)等]、
(10)酸アミド系除草性化合物[プロパニル(propanil)、プロピザミド(propyzamide)、ブロモブチド(bromobutide)、エトベンザニド(etobenzanid)等]、
(11)クロロアセトアニリド系除草性化合物[アラクロール(alachlor)、ブタクロール(butachlor)、ジメテナミド(dimethenamid)、プロパクロール(propachlor)、メタザクロール(metazachlor)、プレチラクロール(pretilachlor)、テニルクロール(theny1ch1or)、ペトキサミド(pethoxamid)、アセトクロール(acetochlor)、メトラクロール(metolachlor)等]、
(12)ジフェニルエーテル系除草性化合物[アシフルオルフェン(acifluorfen−sodium)、ビフェノックス(bifenox)、オキシフルオルフェン(oxyfluorfen)、ラクトフェン(lactofen)、フォメサフェン(fomesafen)、クロメトキシニル(chlomethoxyni1)、アクロニフェン(aclonifen)等]、
(13)環状イミド系除草性化合物[オキサジアゾン(oxadiazon)、シニドンエチル(cinidon−ethyl)、カルフェントラゾンエチル(carfentrazone−ethyl)、スルフェントラゾン(surfentrazone)、フルミクロラックペンチル(flumiclorac−pentyl)、ピラフルフェンエチル(pyraflufen−ethyl)、オキサジアルギル(oxadiargy1)、ペントキサゾン(pentoxazone)、フルチアセットメチル(fluthiacet−methyl)、ブタフェナシル(butafenacil)、ベンズフェンジゾン(benzfendizone)等]、
(14)ピラゾール系除草性化合物[ベンゾフェナップ(benzofenap)、ピラゾレート(pyrazo1ate)、ピラゾキシフェン(pyrazoxyfen)、トプラメゾン(topramezone)、ピラスルホトール(pyrasulfotole)等]、
(15)トリケトン系除草性化合物[イソキサフルトール(isoxaflutole)、ベンゾビシクロン(benzobicyclon)、スルコトリオン(sulcotrione)、メソトリオン(mesotrione)、テンボトリオン(tembotrione)、テフリルトリオン(tefuryltrione)等]、
(16)アリールオキシフェノキシプロピオン酸系除草性化合物[シハロホップブチル(cyhalofop−butyl)、ジクロホップメチル(diclofop−methyl)、フェノキサプロップエチル(fenoxaprop−ethyl)、フルアジホップブチル(fluazifop−butyl)、ハロキシホップメチル(haloxyfop−methyl)、キザロホップエチル(quizalofop−ethyl)、メタミホップ(metamifop)等]、
(17)トリオンオキシム系除草性化合物[アロキシジム(alloxydim−sodium)、セトキシジム(sethoxydim)、ブトロキシジム(butroxydim)、クレソジム(clethodim)、クロプロキシジム(cloproxydim)、シクロキシジム(cycloxydim)、テプラロキシジム(tepraloxydim)、トラルコキシジム(tralkoxydim)、プロフォキシジム(profoxydim)等]、
(18)スルホニル尿素系除草性化合物[クロルスルフロン(chlorsulfuron)、スルホメツロンメチル(sulfometuron−methyl)、メトスルフロンメチル(metsu1furon−methy1)、トリベニュロンメチル(tribenuron−methyl)、トリアスルフロン(triasulfuron)、ベンスルフロンメチル(bensulfuron−methy1)、チフェンスルフロンメチル(thifensulfuron−methyl)、ピラゾスルフロンエチル(pyrazosulfuron−ethy1)、プリミスルフロンメチル(primisulfuron−methyl)、ニコスルフロン(nicosulfuron)、アミドスルフロン(amidosulfuron)、シノスルフロン(cinosulfuron)、イマゾスルフロン(imazosulfuron)、リムスルフロン(rimsulfuron)、ハロスルフロンメチル(ha1osulfuron−methy1)、プロスルフロン(prosulfuron)、エタメトスルフロンメチル(ethametsulfuron−methyl)、トリフルスルフロンメチル(triflusulfuron−methyl)、フラザスルフロン(flazasulfuron)、シクロスルファムロン(cyc1osulfamuron)、フルピルスルフロン(flupyrsulfuron)、スルホスルフロン(sulfosu1furon)、アジムスルフロン(azimsulfuron)、エトキシスルフロン(ethoxysulfuron)、オキサスルフロン(oxasulfuron)、ヨードスルフロンメチルナトリウム(iodosulfuron−methyl−sodium)、フォラムスルフロン(foramsulfuron)、メソスルフロンメチル(mesosulfuron−methyl)、トリフロキシスルフロン(trifloxysulfuron)、トリトスルフロン(tritosulfuron)、オルソスルファムロン(orthosulfamuron),フルセトスルフロン(flucetosulfuron)、メタゾスルフロン(metazosulfuron)、プロピリスルフロン(propyrisulfuron)等]、
(19)イミダゾリノン系除草性化合物[イマザメタベンズメチル(imazamethabenz−methyl)、イマザメタピル(imazamethapyr)、イマザモックス(imazamox)、イマザピル(imazapyr)、イマザキン(imazaquin)、イマゼタピル(imazethapyr)等]、
(20)スルホンアミド系除草性化合物[フルメトスラム(flumetsulam)、メトスラム(metosulam)、ジクロスラム(diclosulam)、フロラスラム(florasulam)、ペノキススラム(penoxsulam)、ピロキススラム(pyroxsulam)等]、
(21)ピリミジニルオキシ安息香酸系除草性化合物[ピリチオバックナトリウム(pyrithiobac−sodium)、ビスピリバックナトリウム(bispyribac−sodium)、ピリミノバックメチル(pyriminobac−methy1)、ピリベンゾキシム(pyribenzoxim)、ピリフタリド(pyriftalid)、ピリミスルファン(pyrimisulfan)等]、
(22)その他の系統の除草性化合物[ベンタゾン(bentazon)、ブロマシル(bromacil)、ターバシル(terbacil)、クロルチアミド(chlorthiamid)、イソキサベン(isoxaben)、ジノセブ(dinoseb)、アミトロール(amitrole)、シンメチリン(cinmethylin)、トリジファン(tridiphane)、ダラポン(da1apon)、ジフルフェンゾピルナトリウム(diflufenzopyr−sodium)、ジチオピル(dithiopyr)、チアゾピル(thiazopyr)、フルカルバゾンナトリウム(flucarbazone−sodium)、プロポキシカルバゾンナトリウム(propoxycarbazone−sodium)、メフェナセット(mefenacet)、フルフェナセット(flufenacet)、フェントラザミド(fentrazamide)、カフェンストロール(cafenstrole)、インダノファン(indanofan)、オキサジクロメホン(oxaziclomefone)、ベンフレセート(benfuresate)、ACN、ピリデート(pyridate)、クロリダゾン(chloridazon)、ノルフルラゾン(norflurazon)、フルルタモン(flurtamone)、ジフルフェニカン(diflufenican)、ピコリナフェン(picolinafen)、ベフルブタミド(beflubutamid)、クロマゾン(clomazone)、アミカルバゾン(amicarbazone)、ピロキサスルホン(pyroxasulfone)、チエンカルバゾンメチル(thiencarbazone−methyl)、フェンクロラゾールエチル(fenchlorazole−ethyl)、マレイン酸ヒドラジン(maleichydrazide)、フルミオキサジン(flumioxazin)、アザフェニジン(azafenidin)、イプフェンカルバゾン(ipfencarbazone)、フェノキサスルホン(fenoxasulfone)等]。
 植物生長調節剤の有効成分として、例えば、ヒメキサゾール(hymexazol)、パクロブトラゾール(paclobutrazol)、ウニコナゾール−P(uniconazole−P)、イナベンフィド(inabenfide)、プロヘキサジオンカルシウム(prohexadione−calcium)等。
 本発明製剤は必要に応じて更に界面活性剤、固体担体、結合剤、安定化剤、顔料等の製剤用助剤を本発明の効果に影響を及ぼさない範囲にて含有することができる。また、これら製剤用助剤はそれぞれ1種のみで用いてもよく、また2種以上で用いてもよい。
 かかる界面活性剤としては、例えば、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルアリールエーテル、ポリオキシエチレンスチリルフェノールエーテル、ポリオキシエチレンラノリンアルコール、ポリオキシエチレンアルキルフェノールホルマリン縮合物、ポリオキシエチレンソルビタン脂肪酸エステル、ポリオキシエチレングリセリルモノ脂肪酸エステル、ポリオキシプロピレングリコールモノ脂肪酸エステル、ポリオキシエチレンソルビトール脂肪酸エステル、ポリオキシエチレンヒマシ油誘導体、ポリオキシエチレン脂肪酸エステル、高級脂肪酸グリセリンエステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、ポリオキシエチレンポリオキシプロピレンブロックポリマー、ポリオキシエチレン脂肪酸アミド、アルキロールアミド、ポリオキシエチレンアルキルアミン等のノニオン性界面活性剤;
ドデシルアミン塩酸塩等のアルキルアミン塩酸塩、ドデシルトリメチルアンモニウム塩、アルキルジメチルベンジルアンモニウム塩、アルキルピリジニウム塩、アルキルイソキノリニウム塩、ジアルキルモルホリニウム塩等のアルキル四級アンモニウム塩、塩化ベンゼトニウム、ポリアルキルビニルピリジニウム塩等のカチオン性界面活性剤;
パルミチン酸ナトリウム等の脂肪酸ナトリウム、ポリオキシエチレンラウリルエーテルカルボン酸ナトリウム等のエーテルカルボン酸ナトリウム、ラウロイルサルコシンナトリウム、N−ラウロイルグルタミン酸ナトリウム等の高級脂肪酸のアミノ酸縮合物、
高級アルキルスルホン酸塩、ラウリン酸エステルスルホン酸塩等の高級脂肪酸エステルスルホン酸塩、
ジオクチルスルホサクシネート等のジアルキルスルホコハク酸塩、
オレイン酸アミドスルホン酸塩等の高級脂肪酸アミドスルホン酸塩、
ドデシルベンゼンスルホン酸ナトリウム、ジイソプロピルナフタレンスルホン酸塩等のアルキルアリールスルホン酸塩、
アルキルアリールスルホン酸塩のホルマリン縮合物、
ペンタデカン−2−サルフェート等の高級アルコール硫酸エステル塩、
ジポリオキシエチレンドデシルエーテルリン酸エステル等のポリオキシエチレンアルキルリン酸エステル、
スチレン−マレイン酸共重合体等のアニオン性界面活性剤;
ポリカルボン酸等が挙げられる。
 本発明製剤において、界面活性剤の合計含有量は、通常は0.1~5.0重量%であり、好適には0.5~3.0重量%である。
 かかる固体担体としては鉱物質担体が挙げられる、鉱物質担体としては、例えば、カオリナイト、ディッカナイト、ナクライト、ハロサイト等のカオリン鉱物、クリソタイル、リザータイト、アンチコライト、アメサイト等の蛇紋石、ベントナイト、サポナイト、ヘクトライト、ソーコナイト、ハイデライト等のスメクタイト、パイロフィライト、タルク、蝋石、白雲母、フェンジャイト、セリサイト、イライト等の雲母、クリストバライト、クォーツ等のシリカ、アタパルジャイト、セピオライト等の含水珪酸マグネシウム、ドロマイト、炭酸カルシウム微粉末等の炭酸カルシウム、ギプサム、石膏等の硫酸塩鉱物、硫酸バリウム(重晶石等)、酸化鉄、ゼオライト、沸石、凝灰石、バーミキュライト、ラポナイト、軽石、珪藻土、酸性白土、活性白土などが挙げられる。
 本発明製剤において、固体担体の合計含有量は、通常は10~90重量%であり、好適には15~70重量%である。
 本発明製剤の剤型としては、粒剤、水和剤、顆粒水和剤、ジャンボ剤等が挙げられる。
 粒剤である本発明製剤(以下、本発明粒剤と記す。)は、例えば、農薬有効成分、活性炭、界面活性剤、固体担体、水及び必要に応じて他の成分の混合物を混練し、得られた混練物を造粒し、その造粒物を乾燥し、必要に応じて解砕、篩分、整粒等を行うことにより製造される。上記混合物の調製方法としては、農薬有効成分、活性炭、界面活性剤、固体担体、その他の製剤用助剤を含有する混合物に水を加える方法や、農薬有効成分、活性炭および固体担体等を含有する粉体混合物と界面活性剤および水等を含有する練合用液体とをそれぞれ調製した後、該粉体混合物と該練合用液体とを混合する方法が挙げられる。
 混練する際には混練機を用いてもよく、該混練機としては、ニーダー、ナウターミキサー、レディゲミキサー等が挙げられる。
 混練物を造粒する方法としては、例えば押出造粒機を用いた押出造粒法が挙げられる。本発明粒剤の製造における押出造粒法は、押出造粒法として通常の方法で行うことができる。押出造粒には、通常0.5~2.0mmφ、好ましくは0.7~1.5mmφの孔を有するスクリーンを用いて行われる。押出造粒された後の造粒物は、通常30~90℃、好ましくは50~80℃で乾燥される。押出造粒で製造された本発明粒剤は、その粒長が通常0.5~6.0mm、好ましくは0.7~4.0mmの範囲である。該押出造粒機としては、スクリュー型押出造粒機、ロール型押出造粒機、ディスクペレッター型押出造粒機、ペレットミル型押出造粒機、バスケット型押出造粒機、プレード型押出造粒機、オシレーティング型押出造粒機、ギア式押出造粒機、及びリングダイス式押出造粒機が挙げられる。押出造粒機として具体的には例えばツインドームグラン、ドームグラン、バスケットリューザー、ペレッターダブル(全て、株式会社ダルトン商品名)、畑式造粒機(株式会社畑鉄工所商品名)が挙げられる。
 解砕及び整粒の方法としては、例えばマルメライザー(株式会社ダルトン)により押出造粒したものを湿式整粒する方法、及び乾燥した粒をピンミル等の解砕機により乾式整粒する方法が挙げられる。
The preparation of the present invention contains a specific agricultural chemical active ingredient. The agrochemical active ingredient used in the preparation of the present invention has a water solubility at 20 ° C. of 5% by weight or less and a soil adsorption constant Koc of 50 or more. Among the agrochemical active ingredients, those having a water solubility at 20 ° C. of 1% by weight or less and / or those having a soil adsorption constant Koc of 80 or more are preferable. The upper limit of the soil adsorption constant Koc is not particularly limited, but is usually 4000 or less.
The soil adsorption constant Koc is a kind of numerical value indicating the soil adsorptivity of a chemical substance, and is a value obtained by dividing the drug adsorption amount per unit soil amount by the drug concentration in the soil solution in equilibrium with the soil. It is a value obtained by dividing the adsorption coefficient Kd by the organic carbon content in the soil, and is a numerical value representing the strength to be adsorbed on the soil. The Pesticide manual and the like.
Examples of the pesticide active ingredient include clothianidin, imidacloprid, acetamiprid, thiacloprid, thiamethoxam, sulfoxafurol, flupirazifuron, fipronil, ethiprole, cyantraniliprole, spinosad, spinetoram, pymetrozine, probenazole, pyroxylone, orizastrobin, azoxystrobin, Examples thereof include thiophanate methyl, tricyclazole, diclocimet, isotianil, carpropamide, tifluzamide, furametopyl, penflufen and the like.
The preparation of the present invention contains activated carbon. Examples of the activated carbon used in the preparation of the present invention include the following.
Volume average particle diameter: Usually 0.1 μm to 500 μm, preferably 1 μm to 200 μm, more preferably 2 μm to 150 μm
Bulk density: Usually 0.1 to 0.9 g / cm 3
Specific surface area: Usually 500 to 2000 (m 2 / g), preferably 800 to 1600 (m 2 / g)
The preparation of the present invention satisfies the following conditions (1) and (2).
Condition (1): The value calculated by the following formula is 0.0001 or more and less than 0.004.
Content of active agrochemical ingredient (g) / {the activated carbon content (g) × the specific surface area of the activated carbon (m 2 / g)}
Condition (2): The density is 0.8 (g / cm 3 ) or more.
The specific surface area of the activated carbon in the present invention can be measured using a specific surface area measuring machine. Examples of the specific surface area measuring machine include Nova e, Autosorb iQ, PoreMaster, Quadrasorb SI, Aquadyne DVS (all manufactured by Spectris Co., Ltd.), SA3100 (manufactured by Beckman Coulter, Inc.), Adsotra DN-04 (manufactured by Nikkiso Co., Ltd.), Trie. Examples of the apparatus include Star 3020II (manufactured by Shimadzu Corporation).
Among the preparations of the present invention, the value of the condition (1) is preferably 0.0002 or more and less than 0.004, and more preferably 0.0002 or more and less than 0.002.
The density of the preparation of the present invention is 0.8 (g / cm 3 ) or more.
The density of the formulation of the present invention is calculated by randomly extracting 100 samples from the formulation of the present invention, measuring the weight and volume of each, and dividing the weight by the volume. And it can confirm by calculating | requiring those average values. The volume of the preparation of the present invention can be calculated by measuring the length using calipers.
The upper limit of the density of the preparation of the present invention is not particularly limited, but is usually 2.0 (g / cm 3 ) or less. The density of the preparation of the present invention is preferably in the range of 0.8 to 1.5 (g / cm 3 ).
The present invention can also contain the following agrochemical active ingredients as required.
(1) Phenoxy fatty acid-based herbicidal compounds [MCP, MCPB, phenothiol, mecoprop, fluroxypyr, triclopyr, clomeprop, naproanilide (naroanilide)
(2) Benzoic acid herbicidal compounds [2,3,6-TBA, clopyralid, picloram, aminopyralid, quinclorac, quinmerac, etc.],
(3) Urea herbicidal compounds [diuron, linuron, chlortoluron, isoproturon, fluometuron, isouron, tebuthiuron, tebuthiuron, tebuthiuron methabenzthiazuron, cumyluron, diimuron, methyl-daimuron, etc.],
(4) Triazine-based herbicidal compounds [ametrine, cyanazine, simazine, propazine, simetrin, dimetamethrin, bromomethrin, promethrin] (Triaziflam), atrazine, etc.],
(5) Bipyridinium-based herbicidal compounds [paraquat, diquat, etc.]
(6) Hydroxybenzonitrile-based herbicidal compounds [bromoxynil, ioxynil, etc.],
(7) Dinitroaniline herbicidal compound [pendimethalin, prodiamine, trifluralin, etc.],
(8) Organophosphorus herbicidal compounds [amiprofos-methyl, butamifos, bensulide, piperophos, anilofos, glufosinate, alfalphosito, alfaphos ],
(9) Carbamate-based herbicidal compounds [dialate (tri-allate), tri-allate (EPTC), butyrate (bentilate), beniocarb, esprocarb, molinate, dimepiperate , Swep, chlorprofam, phenmedifam, phenisopham, pyributicalcarb, ashram, etc.],
(10) Acid amide-based herbicidal compounds [propanil, propyzamide, bromobutide, etobenzanide, etc.]
(11) Chloroacetanilide-based herbicidal compounds [alachlor, butachlor, dimethenamide, propachlor, metazachlor, pretilachlor, pretilachlor, 1 petoxamid), acetochlor, acetochlor, etc.],
(12) Diphenyl ether-based herbicidal compounds [acifluorfen-sodium, bifenox, oxyfluorfen, lactofen, fomesafen, clomethoxyn1, clomethoxyn1, etc. ,
(13) Cyclic imide-based herbicidal compounds [oxadiazon, cinidon-ethyl, carfentrazone-ethyl, sulfentrazone, flumicrolac-pentyl , Pyraflufen-ethyl, oxadiargyl (oxadiargyl), pentoxazone, fluthiacet-methyl, butafenacil, benzfendizon, etc.
(14) Pyrazole-based herbicidal compounds [benzofenap, pyrazolate, pyrazoxifene, topramzone, pyrasulfotole, etc.]
(15) Triketone-based herbicidal compounds [isoxaflutole, benzobicyclon, sulcotrione, mesotrione, tembotrione, tefuryltrione, etc.
(16) Aryloxyphenoxypropionic acid herbicidal compounds [cyhalofop-butyl, diclohop-methyl, phenoxaprop-ethyl, fluazifop-butyl ), Haloxyhop-methyl, quizalofop-ethyl, metamihop, etc.],
(17) Trione oxime-based herbicidal compounds [aloxydim-sodium, cetoxydim, butroxydim, crestodim, cloproxidim, cycloxidimy] , Tralcoxydim, profoxydim, etc.],
(18) Sulfonylurea-based herbicidal compounds [chlorsulfuron, sulfomethuron-methyl, metsulfuron-methyl, tribenuron-methyl, trisulfuron (trisulfuron-methyl) triasulfuron, bensulfuron-methyl, thifensulfuron-methyl, pyrazosulfuron-ethyl1, primisulfuron-methylsulfuron-methyl, Luflon uron), cynosulfuron, imazosulfuron, rimsulfuron, halosulfuron methyl (ulsulfuron-sulfuron), prosulfuron (flusulfuron) -Methyl), flazasulfuron, cyclosulfamuron, flupylsulfuron, sulfosulfuron, azimsulfuron, ethoxysulfuron, ethoxysulfuron (Ethoxysulfuron), oxasulfuron, sodium iodosulfuron-methyl-sodium, foramsulfuron, mesosulfuron-methyl, trifluorosulfuron Frothosulfuron, orthosulfamuron, flucetosulfuron, metazosulfuron, propyrisulfuron, etc.]
(19) Imidazolinone-type herbicidal compounds [imazametabenzmethyl (imazamethabenz-methyl), imazametapyr, imazapyr (imazapyr), imazapir (imazapyr)
(20) Sulfonamide herbicidal compounds [flumetslam, metosulam, dicloslam, floraslam, penoxsuram, pyroxslam, etc.
(21) Pyrimidinyloxybenzoic acid-based herbicidal compounds [pyrithiobac-sodium, bispyribac-sodium, pyriminobac-methyl1], pyribenzoxifimpyri ), Pyrimisulfan etc.],
(22) Other strains of herbicidal compounds [bentazones, bromacil, terbacil, chlorthiamid, isoxaben, dinoseb, amitrole, inmethyline] , Tridiphane, dalapon (da1apon), diflufenzopyr sodium (diflufenzopyr-sodium), dithiopyr (dithiopyr), thiazopyr (thiazopyr), sodium flucarbazone, flucarbazone , Mefenacet, flufenacet, fentrazamide, caffentrol, indanophan, oxaziclomefone, benfrate, benfrate Norflurazon, flurtamone, diflufenican, picolinafene, beflubutamid, clomazone, amicarbazone one), pyroxasulfone, thiencarbazone-methyl, fenchlorazole-ethyl, maleichydrazide, flumioxazine, flumioxazine Carbazone, fenoxasulfone and the like].
As an active ingredient of a plant growth regulator, for example, hymexazole (hymexazole), paclobutrazole (paclobutrazol), uniconazole-P (uniconazole-P), inabenfide (inabenfide), prohexadione calcium (prohexadione-calcium) and the like.
The preparation of the present invention can further contain formulation aids such as surfactants, solid carriers, binders, stabilizers, pigments and the like as required, as long as the effects of the present invention are not affected. In addition, these preparation aids may be used alone or in combination of two or more.
Examples of such surfactants include polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl phenol ether, polyoxyethylene lanolin alcohol, polyoxyethylene alkylphenol formalin condensate, polyoxyethylene sorbitan fatty acid ester, Polyoxyethylene glyceryl mono fatty acid ester, polyoxypropylene glycol mono fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene castor oil derivative, polyoxyethylene fatty acid ester, higher fatty acid glycerin ester, sorbitan fatty acid ester, sucrose fatty acid ester, Polyoxyethylene polyoxypropylene block polymer, polyoxyethylene fatty acid Bromide, alkylolamides, nonionic surfactants such as polyoxyethylene alkylamine;
Alkylamine hydrochloride such as dodecylamine hydrochloride, dodecyltrimethylammonium salt, alkyldimethylbenzylammonium salt, alkylpyridinium salt, alkylisoquinolinium salt, alkyl quaternary ammonium salt such as dialkylmorpholinium salt, benzethonium chloride, poly Cationic surfactants such as alkyl vinyl pyridinium salts;
Fatty acid sodium such as sodium palmitate, sodium ether carboxylate such as sodium polyoxyethylene lauryl ether carboxylate, amino acid condensate of higher fatty acid such as sodium lauroyl sarcosine, sodium N-lauroyl glutamate,
Higher fatty acid sulfonates such as higher alkyl sulfonates and lauric ester sulfonates,
Dialkylsulfosuccinates such as dioctylsulfosuccinate,
Higher fatty acid amide sulfonates such as oleic acid amide sulfonate,
Alkyl aryl sulfonates such as sodium dodecylbenzene sulfonate and diisopropyl naphthalene sulfonate,
Formalin condensate of alkylaryl sulfonate,
Higher alcohol sulfates such as pentadecane-2-sulfate,
Polyoxyethylene alkyl phosphate esters such as dipolyoxyethylene dodecyl ether phosphate ester,
Anionic surfactants such as styrene-maleic acid copolymer;
Polycarboxylic acid etc. are mentioned.
In the preparation of the present invention, the total content of the surfactant is usually 0.1 to 5.0% by weight, preferably 0.5 to 3.0% by weight.
Examples of the solid carrier include mineral carriers. Examples of the mineral carrier include kaolin minerals such as kaolinite, dickanite, nacrite, and halosite, serpentine such as chrysotile, lizarite, anticorite, and amethite, bentonite. , Saponite, hectorite, saconite, hydelite, etc., smectite, pyrophyllite, talc, wax, mica, fengite, sericite, illite, mica, cristobalite, quartz, etc., hydrous silicic acid, such as attapulgite, sepiolite Magnesium, dolomite, calcium carbonate fine powder, calcium carbonate, gypsum, gypsum and other sulfate minerals, barium sulfate (barite, etc.), iron oxide, zeolite, zeolite, tuff, vermiculite, laponite, pumice, diatomaceous earth, Acid white , And the like activated clay.
In the preparation of the present invention, the total content of the solid carrier is usually 10 to 90% by weight, preferably 15 to 70% by weight.
Examples of the dosage form of the preparation of the present invention include granules, wettable powders, granular wettable powders, jumbo drugs and the like.
The formulation of the present invention which is a granule (hereinafter referred to as the present granule) is, for example, kneaded with a mixture of an agricultural chemical active ingredient, activated carbon, a surfactant, a solid carrier, water and other components as necessary. The obtained kneaded product is granulated, the granulated product is dried, and pulverized, sieved, or sized as necessary. As a method for preparing the above mixture, a method of adding water to a mixture containing an agrochemical active ingredient, activated carbon, a surfactant, a solid carrier, and other formulation aids, an agrochemical active ingredient, activated carbon, a solid carrier, etc. Examples thereof include a method of preparing a powder mixture and a kneading liquid containing a surfactant and water, and then mixing the powder mixture and the kneading liquid.
When kneading, a kneader may be used, and examples of the kneader include a kneader, a Nauter mixer, and a Redige mixer.
Examples of the method for granulating the kneaded product include an extrusion granulation method using an extrusion granulator. The extrusion granulation method in the production of the granule of the present invention can be carried out by an ordinary method as the extrusion granulation method. The extrusion granulation is usually performed using a screen having holes of 0.5 to 2.0 mmφ, preferably 0.7 to 1.5 mmφ. The granulated product after extrusion granulation is usually dried at 30 to 90 ° C, preferably 50 to 80 ° C. The granules of the present invention produced by extrusion granulation usually have a grain length in the range of 0.5 to 6.0 mm, preferably 0.7 to 4.0 mm. Examples of the extrusion granulator include a screw-type extrusion granulator, a roll-type extrusion granulator, a disk pelleter-type extrusion granulator, a pellet mill-type extrusion granulator, a basket-type extrusion granulator, and a plate-type extrusion granulator. Examples thereof include a granulator, an oscillating extrusion granulator, a gear type extrusion granulator, and a ring die type extrusion granulator. Specific examples of extrusion granulators include Twin Dome Gran, Dome Gran, Basket Reuser, Pelleter Double (all are trade names of Dalton Co., Ltd.), and field type granulators (trade names of Hata Iron Works Co., Ltd.). It is done.
Examples of the pulverization and sizing method include a method of wet sizing the material granulated by extrusion with a Malmerizer (Dalton Co., Ltd.), and a method of dry sizing the dried particles with a pulverizer such as a pin mill. .
 次に、実施例を示す。尚、本発明は本実施例に限定されるものではない。
 まず、製剤例を示す。尚、製剤例において使用されたものは特に断りのない限り同一名称のものは前述したものと同じものである。
 また、製剤例、比較製剤例において得られた粒剤について、式
該農薬有効成分含有量(g)/{該活性炭含有量(g)×該活性炭の比表面積(m/g)}
で算出された値を「粒剤のパラメーター」と記す。
製剤例1
 クロチアニジン原末(クロチアニジン68.6%およびクレーS(株式会社勝光山鉱業所製クレー)31.4%を含有)7.35g、KD−PWSP(株式会社ユーイーエス製活性炭)2.5g、クニゲルV1(クニミネ工業株式会社製ベントナイト)13g、重晶石(ネオライト興産株式会社製)25.9gをポリ袋内で混合し、粉体混合物を得た。
 次にトキサノンGR−31A(三洋化成工業株式会社製ポリカルボン酸)1g、ネオコールSW−CP(第一工業製薬株式会社製ジアルキルスルホコハク酸塩)0.25g、イオン交換水5.25gを混合し、練合用液体を得た。
 上記粉体混合物と練合用液体とを混合し、よく混練した。得られた混練物を直径1.0mmのステンレス製スクリーンより押し出し、80℃で乾燥し、クロチアニジンを10%含有する粒剤を得た。
 粒剤のパラメーター;0.0016
 粒剤の密度:1.08(g/cm
製剤例2
 製剤例1における重晶石をクレーSに変更した以外は、製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0016
 粒剤の密度:0.91(g/cm
製剤例3
 製剤例1におけるクロチアニジン原末7.35g、KD−PWSP 2.5g、クニゲルV1 13g、重晶石 25.9g、トキサノンGR−31A 1g、ネオコールSW−CP 0.25g、イオン交換水5.25gをそれぞれ、イミダクロプリド(和光純薬工業株式会社製)0.5g、KD−PWSP 0.3g、クニゲルV1 1.3g、重晶石2.78g、トキサノンGR−31A 0.1g、ネオコールSW−CP 0.013g、イオン交換水0.71gに変え、製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0016
 粒剤の密度:0.92(g/cm
製剤例4
 製剤例1におけるKD−PWSP 2.5gおよび重晶石25.9gに代えてクラレコールPK−D(クラレケミカル株式会社製活性炭) 1gおよび重晶石27.4gを使用した以外は製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0033
 粒剤の密度:0.91(g/cm
製剤例5
 製剤例1におけるKD−PWSP 2.5g、重晶石25.9gおよびイオン交換水5.25gに代えてKD−PWSP 5g、重晶石23.4gおよびイオン交換水8.7gを使用した以外は製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0008
 粒剤の密度:0.9(g/cm
製剤例6
 製剤例1におけるKD−PWSP 2.5g、重晶石25.9gおよびイオン交換水5.25gに代えてKD−PWSP 20g、重晶石8.4gおよびイオン交換水8.7gを使用した以外は製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.00020
 粒剤の密度:0.89(g/cm
比較製剤例1
 クロチアニジン原末7.35g、マイクロスフィアーF−30E(松本油脂製薬株式会社製)40g、クニゲルV1 13g、クレーS 24.4gをポリ袋内で混合し粉体混合物を得た。
 次にトキサノンGR−31A 1g、ネオコールSW−CP 0.25g、イオン交換水8.75gを混合し練合用液体を得た。
 得られた粉体混合物と練合用液体をよく混練した。
 得られた混練物を直径1.0mmのステンレス製スクリーンより押し出し、80℃で乾燥し、クロチアニジンを10%含有する粒剤を得た。
 粒剤のパラメーター;なし
 粒剤の密度:0.60(g/cm
比較製剤例2
 製剤例1の活性炭を使用せず、重晶石の量を28.4gに変更した以外は製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;なし
 粒剤の密度:1.09(g/cm
比較製剤例3
 比較製剤例1においてKD−PWSP(活性炭;株式会社ユーイーエス製)2.5gを粉体混合物に追加使用し、クレーSの量を21.9gに変更した以外は、比較製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0016
 粒剤の密度:0.62(g/cm
比較製剤例4
 製剤例2においてクレーSの量を27.4gに、KD−PWSPの量を1gに変更した以外は、製剤例2と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.004
 粒剤の密度:0.92(g/cm
比較製剤例5
 製剤例1におけるクロチアニジン原末7.35g、KD−PWSP 2.5g、クニゲルV1 13g、重晶石 25.9g、トキサノンGR−31A 1g、ネオコールSW−CP 0.25g、イオン交換水5.25gをそれぞれ、ジノテフラン(和光純薬製)0.17g、KD−PWSP 0.08g、クニゲルV1 0.43g、重晶石 0.96g、トキサノンGR−31A 0.03g、ネオコールSW−CP 0.01g、イオン交換水0.12gに変え、製剤例1と同様の方法で粒剤を得た。
 粒剤のパラメーター;0.0016
 粒剤の密度:0.92(g/cm
比較製剤例6
 製剤例1におけるKD−PWSP 2.5g、重晶石25.9gおよびイオン交換水5.25gに代えてクラレコールPDX−2(クラレケミカル株式会社製活性炭)1g、重晶石27.4gおよびイオン交換水8.7gを使用した以外は製剤例1と同様の方法で粒剤を調製した。
 粒剤のパラメーター;0.0056
 粒剤の密度:0.91(g/cm
 次に試験例を示す。
試験例1
 高さ8.5cm、直径5.5cmガラスシャーレに滅菌土壌69gを入れ、イオン交換水170gを注いだ。その後、上記製剤例、比較製剤例により得られた粒剤(試験製剤)17mgをガラスシャーレに加えた。当該ガラスシャーレを耐光試験機(Q−SUN;Q−Lab社製)に入れ、試験温度;34℃、放射強度;0.68(w/m) at 340nm でキセノン光を照射した。照射48時間経過したガラスシャーレ内に残存するクロチアニジンの量をHPLC法で分析し、クロチアニジンの残存率を確認した。結果を表1に示す。
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-I000002
試験例2
 高さ8.5cm、直径5.5cmガラスシャーレに滅菌土壌69gを入れ、イオン交換水170gを注いだ。その後、上記製剤例、比較製剤例により得られた粒剤(試験製剤)17mgをガラスシャーレに加えた。当該ガラスシャーレを耐光試験機(Q−SUN;Q−Lab社製)に入れ、試験温度;34℃、放射強度;0.68(w/m) at 340nm でキセノン光を照射した。照射96時間経過したガラスシャーレ内に残存する農薬有効成分(クロチアニジン、イミダクロプリド又はジノテフラン)の量をHPLC法で分析し、農薬有効成分の残存率を確認した。結果を表2に示す。
Figure JPOXMLDOC01-appb-T000003
試験例3(効力試験)
 水田に水稲の苗を移植し、その直後、試験製剤を500g/10aの割合で水田に散布した。該苗を生育させ移植49日後にイネドロオイムシによる食害度を求めた。食害度は以下の方法により決定した。
<食害度決定方法>
 調査日に試験製剤を散布した稲100株を任意に抽出し、各稲株についてイネドロオイムシによる食害程度を目視観察して以下に示す5段階の食害程度で評価し、各食害程度の稲株数をそれぞれA、B、C、D、Eとし、下式を用いて食害度を算出した。
食害程度
 食害なし・・・・・・・・・・・・・・・・(株数:A)
 1株全葉の食害面積率  5%以下・・・・(株数:B)
 1株全葉の食害面積率  6~20%・・・(株数:C)
 1株全葉の食害面積率 21~40%・・・(株数:D)
 1株全葉の食害面積率 41%以上 ・・・(株数:E)
食害度={(4E+3D+2C+B)/4×100}×100
 結果を表3に示す。
Figure JPOXMLDOC01-appb-T000004
Next, an example is shown. The present invention is not limited to this embodiment.
First, formulation examples are shown. In addition, what was used in the formulation example has the same name as described above unless otherwise specified.
Moreover, about the granule obtained in the formulation example and the comparative formulation example, formula agrochemical active ingredient content (g) / {the activated carbon content (g) × the specific surface area of the activated carbon (m 2 / g)}
The value calculated in is referred to as “granules parameters”.
Formulation Example 1
Clothianidin bulk (containing 68.6% clothianidin and 31.4% clay S (clay manufactured by Katsumiyama Mining Co., Ltd.)) 7.35 g, 2.5 g KD-PWSP (activated carbon manufactured by UES Co., Ltd.), Kunigel V1 13 g of bentonite (Kunimine Kogyo Co., Ltd.) and 25.9 g of barite (Neolite Kosan Co., Ltd.) were mixed in a plastic bag to obtain a powder mixture.
Next, 1 g of toxanone GR-31A (polycarboxylic acid manufactured by Sanyo Chemical Industries, Ltd.), 0.25 g of neocor SW-CP (dialkylsulfosuccinate manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), and 5.25 g of ion-exchanged water were mixed. A kneading liquid was obtained.
The powder mixture and the kneading liquid were mixed and kneaded well. The obtained kneaded product was extruded from a stainless steel screen having a diameter of 1.0 mm and dried at 80 ° C. to obtain granules containing 10% clothianidin.
Granule parameters; 0.0016
Granule density: 1.08 (g / cm 3 )
Formulation Example 2
Granules were obtained in the same manner as in Formulation Example 1, except that the barite in Formulation Example 1 was changed to Clay S.
Granule parameters; 0.0016
Granule density: 0.91 (g / cm 3 )
Formulation Example 3
7.35 g of clothianidin bulk powder in Formulation Example 1, 2.5 g of KD-PWSP, 13 g of Kunigel V1, 25.9 g of barite, 1 g of toxanone GR-31A, 0.25 g of Neocor SW-CP, and 5.25 g of ion-exchanged water. Imidacloprid (manufactured by Wako Pure Chemical Industries, Ltd.) 0.5 g, KD-PWSP 0.3 g, Kunigel V1 1.3 g, barite 2.78 g, Toxanone GR-31A 0.1 g, Neocor SW-CP 0.8. Granules were obtained in the same manner as in Formulation Example 1, except that 013 g and 0.71 g of ion-exchanged water were used.
Granule parameters; 0.0016
Granule density: 0.92 (g / cm 3 )
Formulation Example 4
Formulation Example 1 except that 2.5 g of KD-PWSP and 25.9 g of barite in Formulation Example 1 were used instead of 1 g of Kuraray Coal PK-D (activated carbon manufactured by Kuraray Chemical Co., Ltd.) and 27.4 g of barite. Granules were obtained in the same manner.
Granule parameters; 0.0033
Granule density: 0.91 (g / cm 3 )
Formulation Example 5
KD-PWSP 5 g, barite 23.4 g, and ion-exchanged water 8.7 g were used instead of 2.5 g of KD-PWSP in Formulation Example 1 and 25.9 g of barite and 5.25 g of ion-exchanged water. Granules were obtained in the same manner as in Formulation Example 1.
Granule parameters; 0.0008
Granule density: 0.9 (g / cm 3 )
Formulation Example 6
Except for using KD-PWSP 20 g, barite 8.4 g and ion-exchanged water 8.7 g instead of KD-PWSP 2.5 g, barite 25.9 g and ion-exchanged water 5.25 g in Formulation Example 1. Granules were obtained in the same manner as in Formulation Example 1.
Granule parameters; 0.00020
Granule density: 0.89 (g / cm 3 )
Comparative Formulation Example 1
7.35 g of clothianidin powder, 40 g of Microsphere F-30E (manufactured by Matsumoto Yushi Seiyaku Co., Ltd.), 13 g of Kunigel V1 and 24.4 g of clay S were mixed in a plastic bag to obtain a powder mixture.
Next, 1 g of toxanone GR-31A, 0.25 g of neocol SW-CP, and 8.75 g of ion-exchanged water were mixed to obtain a kneading liquid.
The obtained powder mixture and kneading liquid were well kneaded.
The obtained kneaded product was extruded from a stainless steel screen having a diameter of 1.0 mm and dried at 80 ° C. to obtain granules containing 10% clothianidin.
Granule parameters; None Grain density: 0.60 (g / cm 3 )
Comparative formulation example 2
Granules were obtained in the same manner as in Formulation Example 1 except that the activated carbon of Formulation Example 1 was not used and the amount of barite was changed to 28.4 g.
Granule parameters; None Grain density: 1.09 (g / cm 3 )
Comparative Formulation Example 3
In Comparative Formulation Example 1, the same as Comparative Formulation Example 1 except that 2.5 g of KD-PWSP (activated carbon; manufactured by UES Co., Ltd.) was additionally used in the powder mixture and the amount of clay S was changed to 21.9 g. Granules were obtained by the method.
Granule parameters; 0.0016
Granule density: 0.62 (g / cm 3 )
Comparative Formulation Example 4
Granules were obtained in the same manner as in Formulation Example 2, except that the amount of clay S was changed to 27.4 g and the amount of KD-PWSP was changed to 1 g in Formulation Example 2.
Granule parameters; 0.004
Granule density: 0.92 (g / cm 3 )
Comparative Formulation Example 5
7.35 g of clothianidin bulk powder in Formulation Example 1, 2.5 g of KD-PWSP, 13 g of Kunigel V1, 25.9 g of barite, 1 g of toxanone GR-31A, 0.25 g of Neocor SW-CP, and 5.25 g of ion-exchanged water. Dinotefuran (manufactured by Wako Pure Chemical Industries) 0.17 g, KD-PWSP 0.08 g, Kunigel V1 0.43 g, barite 0.96 g, Toxanone GR-31A 0.03 g, Neocor SW-CP 0.01 g, Ion Granules were obtained in the same manner as in Formulation Example 1 except that the water content was changed to 0.12 g.
Granule parameters; 0.0016
Granule density: 0.92 (g / cm 3 )
Comparative Formulation Example 6
Instead of 2.5 g of KD-PWSP, 25.9 g of barite and 5.25 g of ion-exchanged water in Formulation Example 1, 1 g of Kuraray Coal PDX-2 (activated carbon made by Kuraray Chemical Co., Ltd.), 27.4 g of barite and ions Granules were prepared in the same manner as in Formulation Example 1 except that 8.7 g of exchange water was used.
Granule parameters; 0.0056
Granule density: 0.91 (g / cm 3 )
Next, test examples are shown.
Test example 1
69 g of sterilized soil was put in a glass petri dish with a height of 8.5 cm and a diameter of 5.5 cm, and 170 g of ion-exchanged water was poured. Thereafter, 17 mg of granules (test preparation) obtained by the above preparation examples and comparative preparation examples were added to a glass petri dish. The glass petri dish was placed in a light resistance tester (Q-SUN; manufactured by Q-Lab), and irradiated with xenon light at a test temperature: 34 ° C., radiation intensity: 0.68 (w / m 2 ) at 340 nm. The amount of clothianidin remaining in the glass petri dish after 48 hours of irradiation was analyzed by HPLC, and the residual ratio of clothianidin was confirmed. The results are shown in Table 1.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-I000002
Test example 2
69 g of sterilized soil was put in a glass petri dish with a height of 8.5 cm and a diameter of 5.5 cm, and 170 g of ion-exchanged water was poured. Thereafter, 17 mg of granules (test preparation) obtained by the above preparation examples and comparative preparation examples were added to a glass petri dish. The glass petri dish was placed in a light resistance tester (Q-SUN; manufactured by Q-Lab), and irradiated with xenon light at a test temperature: 34 ° C., radiation intensity: 0.68 (w / m 2 ) at 340 nm. The amount of the pesticidal active ingredient (clothianidin, imidacloprid or dinotefuran) remaining in the glass petri dish after 96 hours of irradiation was analyzed by HPLC, and the residual ratio of the pesticidal active ingredient was confirmed. The results are shown in Table 2.
Figure JPOXMLDOC01-appb-T000003
Test Example 3 (Efficacy test)
Rice seedlings were transplanted into the paddy field, and immediately after that, the test preparation was sprayed onto the paddy field at a rate of 500 g / 10a. The seedlings were grown and the degree of damage caused by rice rotifers was determined 49 days after transplantation. The damage degree was determined by the following method.
<Food damage determination method>
100 rice plants sprayed with the test preparations were randomly extracted on the survey day, and the degree of damage caused by rice rotifers was visually observed for each rice strain, and the following five levels of damage were evaluated. Assuming that A, B, C, D, and E were used, the food damage level was calculated using the following equation.
Eating damage level No eating damage (Number of shares: A)
Rate of damage to all leaves per share 5% or less ... (Number of shares: B)
Rate of damage to all leaves per share 6-20% ... (Number of strains: C)
Rate of damage to all leaves per share: 21-40% (Number of strains: D)
More than 41% damage area ratio of 1 leaf of all leaves (Number of strains: E)
Corrosion degree = {(4E + 3D + 2C + B) / 4 × 100} × 100
The results are shown in Table 3.
Figure JPOXMLDOC01-appb-T000004
 本発明製剤は水田に施用された後農薬有効成分が光に分解されにくく、農薬活性が十分発揮される優れた製剤である。 The formulation of the present invention is an excellent formulation in which the pesticidal active ingredient is not easily decomposed into light after being applied to paddy fields and the pesticidal activity is sufficiently exhibited.

Claims (7)

  1.  20℃における水溶解度が5重量%以下であり、かつ、土壌吸着定数Kocが50以上である農薬有効成分と、活性炭とを含有し、以下の条件(1)および条件(2)を満たす固形農薬製剤。
     条件(1):以下の式の値が0.0001以上0.004未満である。
    該農薬有効成分含有量(g)/{該活性炭含有量(g)×該活性炭の比表面積(m/g)}
     条件(2):密度が0.8(g/cm)以上である。
    A solid agricultural chemical containing a pesticide active ingredient having a water solubility at 20 ° C. of 5% by weight or less and a soil adsorption constant Koc of 50 or more and activated carbon, and satisfying the following conditions (1) and (2): Formulation.
    Condition (1): The value of the following formula is 0.0001 or more and less than 0.004.
    Content of active agrochemical ingredient (g) / {the activated carbon content (g) × the specific surface area of the activated carbon (m 2 / g)}
    Condition (2): The density is 0.8 (g / cm 3 ) or more.
  2.  条件(1)の式の値が0.0002以上0.004未満である請求項1記載の固形農薬製剤。 The solid agrochemical formulation according to claim 1, wherein the value of the formula of the condition (1) is 0.0002 or more and less than 0.004.
  3.  条件(1)の式の値が0.0002以上0.002未満である請求項1記載の固形農薬製剤。 The solid agrochemical formulation according to claim 1, wherein the value of the formula of condition (1) is 0.0002 or more and less than 0.002.
  4.  硫酸バリウムを含有する請求項1~3のいずれか一項に記載の固形農薬製剤。 The solid agrochemical formulation according to any one of claims 1 to 3, comprising barium sulfate.
  5.  農薬有効成分がクロチアニジン及び/又はイミダクロプリドである請求項1~4のいずれか一項に記載の固形農薬製剤。 The solid agricultural chemical preparation according to any one of claims 1 to 4, wherein the active ingredient of agricultural chemical is clothianidin and / or imidacloprid.
  6.  農薬有効成分がクロチアニジンである請求項1~4のいずれか一項に記載の固形農薬製剤。 The solid agricultural chemical preparation according to any one of claims 1 to 4, wherein the active ingredient of agricultural chemical is clothianidin.
  7.  粒剤である請求項1~6のいずれか一項に記載の固形農薬製剤。 The solid agrochemical formulation according to any one of claims 1 to 6, which is a granule.
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