JP2004352711A - Granular agrochemical composition, method for producing the same, and method for using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a granular agrochemical composition given by mixing granular solid agents containing agrochemical components which are different from each other and capable of being uniformly sprayed. <P>SOLUTION: This granular agrochemical composition is composed of two or more kinds of the granular solid agents containing the agrochemical components of which the kinds and/or dissolving behaviors are different from each other, wherein the granular agrochemical composition is uniformly sprayed by satisfying conditions (1) to (3) as follows: (1) the granular solid agents and the granular agrochemical composition have angles of repose in a range of 35° to 45° and each of the granular solid agents has an angle of repose fulfilling that a ratio of the minimum angle of repose to the maximum angle of repose is in a range of ≥0.85; (2) the granular solid agents and the granular agrochemical composition comprise aggregates of solid particles of which the 90 wt% or more have particle sizes in a range of 0.3 to 2.8 mm, each of the granular solid agents has an MD50 fulfilling that a ratio of the minimum MD50 to the maximum MD50 is in a range of ≥0.7, the granular solid agents have DV values (index of particle size distribution) of 45-70, and the granular agrochemical composition has a DV value of 50-70; and (3) the granular solid agents comprise solid particles having densities in a range of 0.5-5.0 g/cm<SP>3</SP>and each of the granular solid agents has a density fulfilling that a ratio of the minimum density to the maximum density is in a range of ≥0.8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a granular pesticidal composition that can be uniformly sprayed on a paddy field and a nursery box for controlling pests in a paddy field, and that can reduce the number of times of the control operation.

  Pests such as weeds and pests occur in paddy fields, and have a great adverse effect on the growth of crops. Without the control of these pests, the yield of agricultural products would be drastically reduced, which would shake the economic base of agriculture. Therefore, pest control is carried out on agricultural sites using a great deal of labor, time and money. Generally, chemical treatment is performed for each target for controlling weeds and pests. This is because the time, formulation, or application method suitable for each control is different from each other. As a result, farmers may perform more than a dozen pesticide treatments during a single cropping season. That is, generally, starting from the sterilization of the seed rice, the insecticide before transplanting to Honda, the application of the sterilizing granules to the nursery box, the application of the initial herbicide before and after transplantation to Honda once or twice, the insecticide granule or insecticide at the same time. The spraying of packs or sterilizing granules in Honda, the spraying of herbicides in the middle stage, and the spraying of insecticides and sterilizing powders in the middle to late stages of Honda are performed 3 to 7 times. Further, in direct sowing cultivation, herbicide treatment before and after sowing is essential, and thereafter, chemical treatment for pest control is performed in the same manner as in transplantation cultivation.

  In these control activities, the aging of agricultural workers has been progressing, and efforts to save labor have been strongly demanded. The use of granules for paddy fields in 1 kg, the application of hand shakes from the ridges of flowables, and the use of jumbo agents and the like have been required. New control techniques, such as the application of water, have been put to practical use. These have greatly contributed to the reduction of drug processing labor. Under such circumstances, granules are an important dosage form as a dosage form with less environmental pollution due to scattering, and are generally applied using a power sprayer. On the other hand, it has the convenience that it can be sowed easily by hand, and is also a dosage form that allows simple and safe drug treatment. Regarding the use of granules, research and development aiming at labor and resource savings have been steadily continued, and 1 kg granules for paddy fields are one of the technologies that have been put into practical use under such research and development. However, the development of further labor-saving technologies is strongly desired.

  By the way, it is considered that the reduction of the number of times of spraying the medicine is an extremely effective technique as it greatly contributes to labor saving of the control work. Also, from the viewpoint of reducing the environmental load due to chemical substances, the necessity has become extremely large. In response to such demands, many admixtures containing a plurality of active ingredients have been developed. For example, there are a large number of commercially available insecticidal fungicidal preparations containing a pesticidal component and a bactericidal component as granules for nursery boxes, granules for Honda, packs for Honda injection, and the like. It is also common practice to simultaneously control different types of weeds using a complex herbicide (granules, suspensions, etc.) containing a plurality of herbicidally active ingredients.

  However, weed control is an indispensable operation before direct sowing in direct sowing cultivation, and is also an operation necessary before and after rice transplantation in transplant cultivation. Treatment of insecticides and fungicides is a necessary operation from the seedling raising period in the seedling raising box and about 30 days after rice transplantation. Therefore, weed control and pest control are performed at different times and with different formulations. In addition, even when controlling only pests, for example, the control time differs between blast control and stink bug control. If the number of separate pest control operations can be reduced in this way, it is expected that the convenience and safety of the operations will be greatly improved. For this reason, development of drug use methods and formulation techniques has been attempted.

For example, with respect to the technology relating to a mixture of a herbicide and an insecticide fungicide, a technology for controlling rice blast and weeds by a single chemical treatment using a composition containing a rice blast control agent and a herbicide (for example,
See Patent Document 1. ), A technique for simultaneous control of pests in paddy fields with a composition containing three components of sterilization, insecticide and weed control (for example, see Patent Documents 2 and 3). However, in these technologies, multiple components are combined in a single grain nucleus, especially herbicides and fungicides and insecticides that differ in their original use periods, and the dissolution behavior required for each drug is appropriately exhibited. It is difficult to do so, and the pest control effect is not satisfactory. Furthermore, in the production scene, when an insecticide or fungicide is separately manufactured in the same equipment as the mixture, a highly precise process cleaning is essential to prevent the contamination of the herbicidal active ingredient, and the production efficiency is remarkable. The decline is inevitable.

  Regarding the technology intended to control the dissolution behavior, a technology for bonding the inner core subjected to the sustained-release treatment and an outer layer containing the same active component as the inner core compounding component (for example, see Patent Documents 4 and 5), and a method for applying to the mineral core. There is a technique in which a pesticidal active ingredient to be slowly released is adhered with a vinyl acetate resin, and another pesticide ingredient is overcoated thereon with bentonite or the like to form a fast-dissolving layer (for example, see Patent Document 6). These are compounds in which an active ingredient exhibiting a fast elution property and an active ingredient exhibiting a slow elution property are blended into one grain nucleus. However, it may be difficult to obtain a desired dissolution behavior depending on the physical properties of the blended active ingredient. In addition, in the production thereof, it is necessary to perform a complicated coating process twice or more, and a rise in production cost is inevitable. Furthermore, these mixtures may be impossible to formulate because they are contraindicated in terms of component stability and the like.

  In order to overcome the above problems, as a technique of mixing separately prepared granular solids, two or more pesticidal granular compositions having the property of floating on the water surface and disintegrating in the water surface or water in a short time after the floating are used. A technique of mixing before spraying and locally applying the mixture to a paddy field is disclosed (for example, see Patent Document 7). This is intended to make use of the advantages of granules without drifting and scattering, and to enable the mixed spraying of granules in the same manner as the mixed spraying of liquids such as wettable powders and flowables. In such a method of use, it is a necessary condition that the compounded active ingredients are applied uniformly. However, by imparting excellent underwater (water surface) disintegration properties, the problem is overcome, and mixed before spraying. It allows topical application of the composition.

  In addition, there is disclosed a technique for defining a single particle shape of a granular solid agent in a granular agricultural chemical composition comprising two or more types of granular solid agents (for example, see Patent Document 8). The main purpose is to prevent segregation in the composition due to vibration during transportation or handling. That is, when applying the composition to a nursery box, uniformity of the treatment amount and uniformity of the ratio of each component are indispensable for each box, and prevention of segregation in the packaging step and the packaging container is from that viewpoint. It is. However, in operations such as power spraying and hand spraying, since the work itself is a classification operation, the technology does not guarantee uniform application of each component.

  Further, a technique has been disclosed in which the average particle size of a granular material is defined by a combination of two or more types of granular materials containing a physiologically active substance (for example, see Patent Documents 9 and 10). This is intended to avoid segregation when mixing two or more kinds of granular materials to obtain a uniform compound. Similarly, a technique is disclosed in which a mixture of pesticidal granules is extruded and granulated into a cylindrical shape and a granulated particle size ratio between granules to be mixed is disclosed (for example, Patent Document 1). 11). This is intended to prepare a uniform mixture of two or more kinds of granules, particularly water-dispersible granules, and to obtain a granule mixture composition in which component variations are suppressed low in each unit package.

On the other hand, when it is intended to spray a composition in which two or more types of granular solids are mixed on a Honda or a nursery box, a predetermined amount of each granular solid must be uniformly sprayed at a predetermined ratio. However, the spraying operation to Honda using a power sprayer or a granulator equipped with a short tube jet or a multi-hose hose is a classifying operation itself, and the unevenness of each mixed granular solid agent becomes uneven. There is a serious problem that causes the granulation behavior. In addition, even when particles are sprayed into a nursery box from an agricultural chemical packaging container provided with a spray hole and also serving as a spray (see, for example, Patent Document 12), each granular solid agent is classified by the operation of shaking through the pores and sprayed onto Honda. There is a similar problem of non-uniform application.
The above-mentioned known technology cannot solve the problem of the spraying behavior relating to the uniform application of these components, and the development of a new technology is strongly desired.

JP-A-11-310507 ("Sterilized herbicidal composition for paddy field and control method", page 6-7, Test Examples 1 and 2, etc.) JP 2002-114612 A (“Agricultural chemical composition for paddy field and method of using the same”) JP-A-2002-145709 (“Pest control composition and control method for paddy field”, pages 11-12, Test Examples 1 and 2, etc.) Japanese Patent Application Laid-Open No. Hei 9-118601 (“Herbicidal granules with controlled elution and production thereof”, Section 6-8, Examples 1-23, etc.)

Japanese Patent Application Laid-Open No. 9-132503 ("Solution-controlled solid pesticide preparation and its production method", Section 6-8, Examples 1-26, etc.) JP-A-2000-186004 ("Double-coated pesticide granules") Japanese Patent Application Laid-Open No. 2003-40702 ("Method of spraying pesticide granular composition and particulate pesticide mixture") JP 2000-86405 A (“Granular pesticide composition”) Japanese Patent Application Laid-Open No. 2001-206801 (“Blend of physiologically active substance-containing granular material and method of cultivating agricultural crop using the same”) Japanese Patent Application Laid-Open No. 2001-206802 (“Blend of physiologically active substance-containing granular material, method for producing the same, and method for cultivating agricultural crop using the same”) JP-T-11-508260 ("Pest control granular homogeneous mixture") JP-A-10-257846 ("Packaging container for spraying pesticides")

An object of the present invention is to provide a granular pesticidal composition comprising two or more types of granular solid agents, each component of which can be applied uniformly in a nursery box for controlling pests in paddy fields and in spraying pesticides on Honda. .
Therefore, it is an object of the present invention to find a technique for preventing two or more types of granular solid agents that have been blended from being classified with each other during a spraying operation.

The present inventors have conducted intensive studies in order to solve such a problem, and as a result, by classifying the physical properties of a granular pesticide composition comprising two or more granular solids, classification by spraying work is prevented. As a result, the present inventors have found that a granular pesticidal composition comprising two or more types of granular solid agents, each component of which can be uniformly applied, has been obtained, thereby completing the present invention.
That is, the present invention is a granular pesticidal composition comprising two or more kinds of granular solids having different types and / or dissolution behaviors of the pesticide components, characterized by being defined by the following (1) to (3). The present invention relates to a granular pesticide composition.

(1) The angle of repose of the granular solid agent and the granular pesticide composition is in the range of a minimum value of about 35 ° and a maximum value of about 45 °, respectively. It is in the range of 85 or more.
(2) 90% by weight or more of the particulate solid agent and the particulate pesticidal composition are an aggregate of solid particles having a particle size of at least 0.3 mm and a maximum particle size of about 2.8 mm, and the MD50 of each particulate solid agent is the “minimum”. Value / maximum value is 0.7 or more, the DV value (particle size distribution index) of the granular solid agent is a minimum value of 45 and a maximum value of about 70, and the DV value (particle size distribution) of the granular pesticide composition is Exponent) is a minimum value of 50 and a maximum value of about 70.

However, the particle size is a value measured by a “sieving method” using a standard sieve (weight average particle size obtained from weight% on each sieve).
The DV value represents a value obtained by the following formula.
[Formula 1]
DV = [(MD90−MD10) / MD50] × 100
MD90: 90% cumulative particle size (mm)
MD10: Cumulative 10% particle size (mm)
MD50: cumulative 50% particle size (mm)
The MD value was obtained by obtaining an approximate curve of a moving average using the weight% value on each sieve obtained by the "sieving method" and reading the value from the graph.
(3) The granular solid agent is an aggregate of solid particles having a density minimum of 0.5 g / cm ³ and a maximum value of approximately 5.0 g / cm ³ , and the density of each granular solid agent is represented by the “minimum / maximum value”. Is 0.8 or more.
The density represents a value measured using 0.3 mm-diameter glass beads having a known packing density instead of water.

  According to the present invention, a granular pesticidal composition comprising two or more granular solids having different types and / or dissolution behaviors of pesticide components is uniformly applied to a nursery box or a Honda without causing classification during the spraying operation. It becomes possible. As a result, the effects of a plurality of pesticide components are efficiently exhibited, and the number of pest control operations in paddy fields can be reduced.

  The granular pesticidal composition of the present invention is a composition obtained by mixing two or more types of granular solid agents having different types and / or dissolution behaviors of pesticides. A granular solid is an aggregate of solid particles, and is substantially the same as a granule generally used as a dosage form of an agricultural chemical formulation. Examples of the constituent components of the granular solid agent include an agrochemical active substance, a carrier, a binder, a surfactant, a material for controlling elution of the agrochemical active ingredient, and the like, which are described below. And various auxiliaries such as dyes, potency enhancers, and phytotoxicants.

  As a specific example of the granular pesticidal composition of the present invention, a mixture of a granular solid containing a herbicidal active ingredient and a granular solid containing a fungicidal active ingredient or an insecticidal active ingredient, a granular solid containing a herbicidal active ingredient and an insecticidal active ingredient And a mixture with a granular solid containing a bactericidal active ingredient.

The angle of repose of the granular pesticidal composition of the present invention is a minimum value of about 35 °, preferably a minimum value of about 38 °, a maximum value of about 45 °, and preferably a maximum value of about 43 °. "
The minimum / maximum value is within a range of 0.85 or more. That is, in the composition having a repose angle of less than 35 °, segregation which occurs during spraying in a tank of a power sprayer or a pesticide packaging container having a spray hole or classification which occurs at the time of outflow makes the medicine spraying state non-uniform and 45 °. If the composition exceeds the limit, a bridge is formed in the tank, which hinders the spraying operation. In addition, even when the difference in the angle of repose between the granular solids constituting the composition is such that the “minimum value / maximum value” is 0.85 or less, the dispersion of the granular solids is biased. Failure occurs.

  In addition, the solid granule and the pesticidal composition having a particle size of 90% by weight or more have a particle size of at least about 0.3 mm, preferably at least about 0.5 mm, and at most about 2.8 mm, and preferably at most about 2.0 mm. It comprises an aggregate of particles, and the DV value (particle size distribution index) of the granular solid agent is a minimum value of about 45, preferably a minimum value of about 50, a maximum value of about 70, and preferably a maximum value of about 65. The DV value (particle size distribution index) is about 50 minimum, preferably about 55 minimum, about 70 maximum, and preferably about 65 maximum. That is, it is an essential requirement that the granular pesticidal composition of the present invention is a solid particle aggregate which is distributed in a moderately wide range in order to secure a required spray width. Further, it is necessary that the constituent granular solid agents also have an approximate particle size distribution. A composition comprising a granular solid agent having a particle size distribution out of the specified range causes a problem that the width of application is narrowed when power is applied, or that the application of each component is biased. Further, the above is the same essential requirement even when the nursery box is applied in the agricultural chemical packaging container having a spray hole so that the granular solid agent is uniformly discharged from the spray hole.

Further, in order to secure an appropriate scattering distance, the granular solid agent is an aggregate of solid particles having a minimum density of about 0.5 g / cm ³ and a maximum density of about 5.0 g / cm ^3. It is necessary that the “minimum value / maximum value” of the density of the solid agent is in the range of 0.8 or more.
In the present invention, the shape of the granular solid is a shape generally used as a pesticide granule, and examples thereof include a shape of an extruded granulated product, a shape of a coated or impregnated granulated product using crushed granules, and the like. it can.

  In the granular pesticidal composition of the present invention, each granular solid contains an agricultural chemical active ingredient. The pesticidal active ingredient that can be blended is not particularly limited, and examples thereof include insecticides, fungicides, herbicides, insect growth regulators, plant growth regulators, and the like. Specific examples include the following compounds. Can be

Insecticide A. Organophosphorus pesticides (A-1). Monocrotophos (general name, hereinafter referred to as compound (A-1));
(A-2). Propaphos (generic name, hereinafter referred to as compound (A-2));
(A-3). Fenthion (generic name, hereinafter referred to as compound (A-3));
(A-4). Fenitrothion (generic name, hereinafter referred to as compound (A-4));
(A-5). Fentate (common name, hereinafter referred to as compound (A-5)),
(A-6). Diazinon (generic name, hereinafter referred to as compound (A-6)),
(A-7). Disulfoton (generic name, hereinafter referred to as compound (A-7));
(A-8). Dimethoate (generic name, hereinafter referred to as compound (A-8)),
(A-9). Chlorpyrifos-methyl (generic name, hereinafter referred to as compound (A-9));
(A-10). Pyridafenthion (generic name, hereinafter referred to as compound (A-10));
(A-11). Dimethylvinphos (general name, hereinafter referred to as compound (A-11));

B. Pyrethroid insecticides (B-1). Cycloprothrin (generic name, hereinafter referred to as compound (B-1));
(B-2). Etofenprox (generic name, hereinafter referred to as compound (B-2)),
(B-3). Silafluofen (generic name, hereinafter referred to as compound (B-3));
C. Nereistoxin insecticide (C-1). Cartap (general name, hereinafter referred to as compound (C-1));
(C-2). Bensultap (generic name, hereinafter referred to as compound (C-2));
(C-3). Thiocyclam (generic name, hereinafter referred to as compound (C-3));
D. Carbamate insecticides (D-1). Fenobucarb (generic name, hereinafter referred to as compound (D-1));
(D-2). Carbofuran (generic name, hereinafter referred to as compound (D-2)),
(D-3). Carbosurphan (generic name, hereinafter referred to as compound (D-3));
(D-4). Fratiothiocarb (generic name, hereinafter referred to as compound (D-4)),
(D-5). Benfracarb (generic name, hereinafter referred to as compound (D-5)),
(D-6). Propoxur (general name, hereinafter referred to as compound (D-6)),
(D-7). Carbaryl (generic name, hereinafter referred to as compound (D-7)),
(D-8). Isoprocarb (generic name, hereinafter referred to as compound (D-8))

E. FIG. Neonicotinoid insecticides (E-1). Imidacloprid (generic name, hereinafter referred to as compound (E-1));
(E-2). Nitenpyram (generic name, hereinafter referred to as compound (E-2));
(E-3). Acetamiprid (generic name, hereinafter referred to as compound (E-3));
(E-4). Thiacloprid (generic name, hereinafter referred to as compound (E-4)),
(E-5). Thiamethoxam (generic name, hereinafter referred to as compound (E-5)),
(E-6). Clothianidin (generic name, hereinafter referred to as compound (E-6));
(E-7). Dinotefuran (generic name, hereinafter referred to as compound (E-7));
F. Thiadiazine insect growth regulator (F-1). Buprofezin (generic name, hereinafter referred to as compound (F-1)),

G. FIG. Other insect growth regulators (G-1). Azadirachtin (generic name, hereinafter referred to as compound (G-1)),
(G-2). Tebufenozide (generic name, hereinafter referred to as compound (G-2));
(G-3). Methoxyphenozide (generic name, hereinafter referred to as compound (G-3));
(G-4). Chromafenozide (generic name, hereinafter referred to as compound (G-4));
(G-5). Halofenozide (generic name, hereinafter referred to as compound (G-5)),
H. Natural macrolide insecticide (H-1). Abamectin (generic name, hereinafter referred to as compound (H-1)),
(H-2). Emamectin benzoate (generic name, hereinafter referred to as compound (H-2));
(H-3). Spinosad (generic name, hereinafter referred to as compound (H-3));
I. Phenylazole insecticides (I-1). Fipronil (generic name, hereinafter referred to as compound (I-1)).

  For the compounds exemplified above, compound (A-1) is the Pesticide Manual (1997, p.849), and compound (A-2) is The Pesticide Manual (1997, p.849). .1019), (A-3) is The Pesticide Manual (1997, p.531), (A-4) is The Pesticide Manual, 1997, p.514-516 ), (A-5): The Pesticide Manual (1997, p.952), (A-6): The Pesticide Manual (1997, p.354), (A) -7) The Pesticide Manual (1997, p. 438), (A-8) The Pesticide Manual (1997, p. 414), (A-9) The Pesticide Manual (1997, p.235), (A- 10) The Pesticide Manual (The Pesticide Manual, 1997, p. 1063), (A-11) The Pesticide Manual (The Pesticide Manual, 1997, p. 419),

(B-1) is The Pesticide Manual (1997, p.286), (B-2) is The Pesticide Manual (1997, p.493), (B-3) ) Is The Pesticide Manual (1997, p. 1105), (C-1) is The Pesticide Manual (1997, p. 193), and (C-2) is The Pesticide Manual. The Pesticide Manual (1997, p.107), (C-3) is The Pesticide Manual (1997, p.1193), and (D-1) is The Pesticide Manual (p.107). The Pesticide Manual, 1997, p. 516), (D-2) is The Pesticide Manual, 1997, p. 186, and (D-3) is The Pesticide Manual, The Pesticide Manual, 1997, p.188), (D-4) is The Pesticide Ma (The Pesticide Manual, 1997, p. 635), (D-5) is The Pesticide Manual (1997, p. 96), and (D-6) is The Pesticide Manual (The Pesticide Manual). Manual, 1997, p.1036), (D-7) is The Pesticide Manual, 1997, p.180), and (D-8) is The Pesticide Manual, 1997, p. p.729),

(E-1) is The Pesticide Manual (1997, p. 706), (E-2) is The Pesticide Manual (1997, p. 880), (E-3) ) Is The Pesticide Manual (1997, p. 9), (E-4) is JP-A-62-207266, (E-5) is EP-A-192,060, (E-6) is JP-A-3-157308, (E-7) is JP-A-7-179448, and (F-1) is The Pesticide Manual (1997, p. 157). (G-1) is The Pesticide Manual (1997, p.59), (G-2) is The Pesticide Manual (1997, p.1147), (G- 3) The Pesticide Manual, 1997, p.1094 , (G-4) is JP-A-6-340654, (H-1) is The Pesticide Manual, 1997, p.3, and (H-2) is Journal of Organic. Chemistry (Journal of Organic Chemistry, 59 , (1994), 7704-7708, (H-3) is The Pesticide Manual)
Manual, 1997, p.1272) and (I-1) are known compounds described in The Pesticide Manual, 1997, p.545, respectively.

Fungicide (a). Thiazinyl (generic name, hereinafter referred to as compound (a)),
(B). Isoprothiolane (generic name, hereinafter referred to as compound (b)),
(C). Tricyclazole (generic name, hereinafter referred to as compound (c)),
(D). Azoxystrobin (generic name, hereinafter referred to as compound (d)),
(E). Metominostrobin (generic name, hereinafter referred to as compound (e)),
(F). Carpropamide (generic name, hereinafter referred to as compound (f)),
(G). Diclosimet (generic name, hereinafter referred to as compound (g)),
(H). Pyroquilon (generic name, hereinafter referred to as compound (h)),
(I). Probenazole (generic name, hereinafter referred to as compound (i)),

(J). Acibenzolar S-methyl (generic name, hereinafter referred to as compound (j)),
(K). Phenoxanil (generic name, hereinafter referred to as compound (k)),
(L). IBP (generic name, hereinafter referred to as compound (l)),
(M). Flutolanil (generic name, hereinafter referred to as compound (m)),
(N). Flamethopyr (generic name, hereinafter referred to as compound (n)),
(O). Thifluzamide (generic name, hereinafter referred to as compound (o)),
(P). Ferimzone (generic name, hereinafter referred to as compound (p))
(Q). Orisastribin (generic name, hereinafter referred to as compound (q))

In the compounds exemplified above, compound (a) is a compound described in JP-A-11-199575, and (b) is a compound described in JP-B-47-34126, The Pesticide Manual, 1997, p.731) and (c) are The Pesticide Manual (The
Pesticide Manual, 1997, p. 1239), (d) is EP 382375 and The Pesticide Manual (1994, p. 579), (e) is JP-A-3-246268, f) The Pesticide Manual (1997, p. 744) and Agricultural Chemicals Handbook, 1999, p. 546, (g) JP-A-2-76846, (h) the Pesticide Manual. (The Pesticide Manual, 1997, p. 1075) and GB 1394373, (i) The Pesticide Manual (1997, p. 999), and (j) JP-A-64-90176. (K) is JP-A-63-132867, (l) is a manual of agricultural chemicals, page 505, 1998, (m) is JP-A-56-167606, and (n) is JP-A-2-131481. Gazette, (o) is U.S. Pat. 45554 JP, (p) is The Pesticides Manual (The Pesticide Manual, 1997, p.543-547), a (p) are known compounds described respectively in WO 99/56540 pamphlet and the like.

Herbicides (1). Bensulfuron-methyl (generic name, hereinafter referred to as compound (1));
(2). Azimsulfuron (general name, hereinafter referred to as compound (2));
(3). Imazosulfuron (general name, hereinafter referred to as compound (3));
(Four). Pyrazosulfuron-ethyl (generic name, hereinafter referred to as compound (4));
(Five). Sinosulfuron (generic name, hereinafter referred to as compound (5));
(6). Ethoxysulfuron (general name, hereinafter referred to as compound (6));
(7). Cyclosulfamuron (general name, hereinafter referred to as compound (7));
(8). Pyriminobac-methyl (generic name, hereinafter referred to as compound (8));
(9). Pyriftalide (generic name, hereinafter referred to as compound (9));
(10). Daimron (general name, hereinafter referred to as compound (10)),

(11). Indanophan (generic name, hereinafter referred to as compound (11));
(12). Cafentrol (generic name, hereinafter referred to as compound (12)),
(13). Clomeprop (generic name, hereinafter referred to as compound (13)),
(14). Bifenox (generic name, hereinafter referred to as compound (14)),
(15). Esprocarb (generic name, hereinafter referred to as compound (15);
(16). Benthiocarb (general name, hereinafter referred to as compound (16)),
(17). Pyributicarb (generic name, hereinafter referred to as compound (17));
(18) bromobutide (generic name, hereinafter referred to as compound (18));
(19) butachlor (general name, hereinafter referred to as compound (19));
(20) pretilachlor (generic name, hereinafter referred to as compound (20));

(21). Tenylchlor (generic name, hereinafter referred to as compound (21));
(22) Etobenzanide (generic name, hereinafter referred to as compound (22));
(23) benzofenap (generic name, hereinafter referred to as compound (23));
(24) cyhalofop butyl (generic name, hereinafter referred to as compound (24));
(25). Mefenacet (generic name, hereinafter referred to as compound (25));
(26). Fentrazamide (generic name, hereinafter referred to as compound (26));
(27) Anilofos (general name, hereinafter referred to as compound (27));
(28) oxadiazone (generic name, hereinafter referred to as compound (28));
(29). Pentoxazone (general name, hereinafter referred to as compound (29));
(30). Naproanilide (generic name, hereinafter referred to as compound (30));

(31). Benzobicyclone (general name, hereinafter referred to as compound (31));
(32) oxadiclomefone (generic name, hereinafter referred to as compound (32));
(33). Simetryn (generic name, hereinafter referred to as compound (33));
(34). Dimethamethrin (general name, hereinafter referred to as compound (34));
(35). Pyrazolate (general name, hereinafter referred to as compound (35));
(36). Benfresate (general name, hereinafter referred to as compound (36));
(37) .KUH021 (development code, hereinafter referred to as compound (37))

(1) The Pesticide Manual (1997, p.104), (2) The Pesticide Manual (1997, p.63), and (3) The Pesticide Manual. Manual (The Pesticide Manual, 1997, p. 703), (4) The Pesticide Manual (1997, p. 1052), (5) The Pesticide Manual (The Pesticide Manual, 1997, p. 703) p.248), (6) The Pesticide Manual (1997, p.488), (7) The Pesticide Manual, 1997, p.288, (8) Is the Pesticide Manual (1997, p.1071), (9) is Japanese Patent Publication No. 4-504265, and (10) is The Pesticide Manual, 1997, p.330. ), (11) are the pestisay The Pesticide Manual (1997, p.715), (12) The Pesticide Manual (1997, p.173), (13) The Pesticide Manual (The Pesticide Manual, p.173) 1997, p.258), (14) The Pesticide Manual (1997, p.116), (15) The Pesticide Manual (1997, p.472), (15) 16) The Pesticide Manual (1997, p. 1192), (17) The Pesticide Manual, 1997, p. 1060, (18) The Pesticide Manual (The Pesticide Manual, 1997, p. 144), (19) The Pesticide Manual, 1997, p. 159, (20) The Pesticide Manual, 1997, p. .995),

(21) The Pesticide Manual (1997, p. 1182), (22) The Pesticide Manual (1997, p. 492), and (23) The Pesticide Manual. Manual (The Pesticide Manual, 1997, p.111), (24) The Pesticide Manual (1997, p.297), (25) The Pesticide Manual (The Pesticide Manual, 1997, p.111) p.779), (26) The 1997 Brighton Crop Protection Conference, Weeds (publ. British Crop Protection Council) p.67-68, (27) The Pesticide Manual, 1997, p.47. ), (28) are The Pesticide Manual (1997, p.905),

(29) The Pesticide Manual (1997, p.942), (30) The Pesticide Manual (1997, p.865), (31) Pesticide Safe Use Guidebook 2002, 514 pages, (32) is The 1997 Brighton
The Crop Protection Conference, Weeds (publ. British Crop Protection Council) p.73-74, (33) is The Pesticide Manual, 1997, p.1108.
), (34) are The Pesticide Manual, 1997, p.407
), (35) are The Pesticide Manual, 1997, p. 1049, and (36) are The Pesticide Manual, 1997, p. 98.
) And (37) are known compounds described in, for example, JP-A-2000-63360.

The content of the pesticidal active ingredient in the granular solid preparation is usually 0.01 to 60% by weight, preferably 0.02 to 40%. Moreover, the content of the pesticidal active ingredient in the granular pesticidal composition of the present invention is usually 0.005 to 40% by weight, preferably 0.01 to 30%.
As a carrier that can be used for the granular solid, an inorganic or organic carrier that is generally used as a carrier for agricultural chemical granules can be blended. Inorganic carriers include, for example, silica minerals, clay, clay minerals containing kaolinite or pyrophyllite as a main component, mineral carriers such as calcium carbonate, bentonite, and synthetic silica, and inorganic salts such as potassium chloride, sodium sulfate, and ammonium sulfate. Urea and the like can be mentioned. Examples of the organic carrier include wood flour, rice husk flour, kenaf flour, cellulose powder, organic acid salts, saccharides, starch, bran, rice bran and the like.

A surfactant may be added to the granular solid agent, if necessary, for the purpose of improving granulation properties, dissolution and diffusion of the active ingredient, and the like. The surfactant can be appropriately selected from those used in ordinary preparations, and may be any of nonionic, anionic, cationic, and zwitterionic, and may be used alone or in combination of two or more. May be used.
As the binder that can be used for the granular solid, an inorganic or organic binder that is generally used as a binder for agricultural chemical granules can be blended.

  Materials for controlling the dissolution of pesticidal active ingredients that can be used in granular solids include water-insoluble or poorly soluble polymers used as binders for non-disintegrating granules, sustained-release coatings or matrices The materials used to delay the elution of the main components such as waxy substances, the surfactants that improve the water and water surface diffusivity of the main components, organic solvents, inorganic or organic hollow particles, etc. Materials that promote dissolution can be mentioned.

The granular solid preparation of the present invention can be usually prepared as follows.
The pesticidal active ingredient, the carrier, the binder, and other ingredients are crushed and mixed as necessary, and an appropriate amount of water is added thereto, and the mixture is kneaded and wet-granulated. At this time, the pesticide active ingredient is subjected to a slow release treatment such as forming a complex with a waxy substance and blended, or a dissolution promoting treatment such as solid solution formation with a water-soluble base or ultra-fine pulverization treatment is performed. Can also be blended. Next, the obtained wet granules are dried using a suitable drier and, if necessary, sized (crushed, sieved) to obtain a granular solid agent. At this time, the obtained dry granules can be impregnated with a liquid or liquefied agricultural chemical active ingredient or other components. In addition, the finely divided suspension of the pesticidal active ingredient can be coated with dry granules, if necessary, together with other auxiliary ingredients, and further dried if necessary.
In addition, it is also possible to prepare by pulverizing and mixing the pesticidal active ingredient, carrier, binder, and other components as necessary, adding a molten waxy substance, kneading, granulating, and then cooling. It is.

As the granulator, an extrusion granulator (basket granulator, twin dome gran, etc.) provided with a screen having an appropriate diameter is preferable, but a fluidized bed granulator, a rolling granulator, a stirring granulator, and the like. A granulator such as a granulator can also be used.
In addition, the pesticidal active ingredient is added to the grain nuclei (crushed grain nuclei, granulated grain nuclei, etc.) adjusted to an appropriate particle size together with water-soluble or water-insoluble or poorly-soluble polymers, organic solvents, surfactants and other auxiliary ingredients, It is also possible to obtain a granular solid by impregnation, adhesion or coating.

The granular solid agent usually has a particle size of at least about 0.5 mm, preferably at least about 0.8 mm, at most about 2.8 mm, and preferably at most 2.0 mm, and has a density of "0.5 to 5.0 g / cm ³ ". , Wherein the density of each granular solid agent is in a range where the “minimum value / maximum value” is 0.8 or more.
The granular pesticidal composition of the present invention is obtained by mixing the granular solid thus obtained. In a mixture of two or more granular solid agents, the angle of repose is at least about 35 °, more preferably at least about 38 °, at most about 45 °, more preferably at most about 43 °, and the DV value (particle size distribution index) Is a particle size distribution in a range indicated by a minimum value of about 45, more preferably a minimum value of about 50, a maximum value of about 70, and more preferably a maximum value of about 65.
There is no particular limitation on the method of mixing the granular solid agent, and the mixing can be performed with ordinary mixing equipment. For example, a mixer such as a ribbon mixer, a Nauta mixer, a concrete mixer, a cascade mixer, a drum mixer, or a V-type mixer can be used.
The mixing ratio of the granular solid agent can be mixed at an arbitrary ratio depending on the purpose of use, the type and content of the pesticidal active ingredient, and the like. It is preferable to mix two or more types of granular solid agents at the same ratio, but any one of them can be used in many cases.

  The granular pesticidal composition of the present invention is a preparation designed so that two or more pesticidal active ingredients can be simultaneously and uniformly applied, and is particularly preferably used for easily controlling a wide variety of pests in paddy fields. Can be The amount of the granules to be sprayed on Honda in such an application is usually 0.1 to 10 kg / 10 are, preferably 0.5 to 4 kg / 10 are, particularly preferably 1 to 3 kg / 10 are, and The application amount is usually 1 to 100 g / box, preferably 10 to 50 g / box. As a method of spraying the composition at that time, a method of spraying directly to Honda by hand, a shoulder sprayer, a power sprayer equipped with a short tube jet head or a multi-mouth hose, and a manned equipped with a sprayer Alternatively, a method using an unmanned helicopter, a rice transplanter, a tiller, or the like can be used. The nursery box can be sprayed directly by hand, sprayed using a measuring cup, sprayed from a container with a spray hole, etc., and on a large scale, sprayed using a granulator. Can also be mentioned.

Hereinafter, production examples, test examples, and the like of the granular pesticidal composition of the present invention will be described, but the present invention is not limited thereto. In the following examples, "parts" indicates parts by weight, and the compounds correspond to the following compounds, respectively.
Compound (1): Bensulfuron-methyl, Compound (2): Azimsulfuron, Compound (11): Indanophane, Compound (13): Chromeprop, Compound (a): Thiazinyl, Compound (F-1): Buprofezin

I. Production example 1 of granular solid preparation Production of granular solid preparation 1 0.60 part of compound (1), 0.12 part of compound (2), 2.80 parts of compound (11), 7.0 parts of compound (13), 0.5 parts of soda ash, 5.0 parts of plastic hollow body (Matsumoto Microsphere-F-30E, 90% moisture, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.), 84.0 parts of potassium chloride, and sodium polyacrylate (Katayama Chemical) 1.0 part of a mixture of 3.0 parts of a surfactant (Olfin E1010, manufactured by Nissin Chemical Industry Co., Ltd.) and 0.5 parts of polyvinyl alcohol (Gohsenol GL05, manufactured by Nippon Gosei) in 15 parts of water. The mixture was melted and kneaded, extruded and granulated by a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen, dried by blowing hot air at 70 to 80 ° C., and sieved. 0.3 to 2.8 To obtain a granular solid dosage -1 in the range of m (sieve mesh opening). The active ingredient of the solid preparation eluted quickly in water.
As a result of measuring the physical properties of the granular solid agent 1, the following values were obtained.
Angle of repose: 40.1 ° Particle size (MD50): 1.24 mm
DV value: 50.8 Density: 1.05 g / cm ³

However, the angle of repose was determined by the “injection method” (illustration of powder properties, p. 136, edited by Japan Society for Powder Technology / Japan Powder Industry Association, published by Industrial Technology Center Co., Ltd.). Using a sieve of 7-48 (Tyler), an approximate curve of a moving average is obtained from the weight% value on each sieve obtained by the "sieving method" (illustration of physical properties of powder, page 90) and read from the graph. The value is obtained from the above equation (1).
As for the density, glass beads having a particle size of 0.3 mm are put into a 200 ml volumetric flask-1 (weight, WF1) up to the marked line. At this time, the weight is measured after confirming that the surface of the glass beads does not lower by tapping lightly (WG1). In a second 200 ml volumetric flask-2 (weight, WF2), about 1/3 volume of the granular solid agent-1 is placed and precisely weighed (WS). Then, the glass beads of flask-1 are inserted up to the marked line of flask-2. At this time, it is confirmed that the glass beads are not lowered by tapping lightly, and the weight of the flask-1 in which the glass beads remain is measured (WG2). The density of the granular solid agent is determined by the following equation.
[Formula 2]
Density = [WS-WF2] / [WG2-WF1] / [WG1-WF1] / 200

Production Example 2 Production of granular solid agent 2 Compound (1) 0.20 part, compound (2) 0.04 part, compound (11) 0.95 part, compound (13) 2.34 parts, soda ash 0.5 Parts, a mixture of 1.0 part of a plastic hollow body (Matsumoto Microsphere-F-30E, 90% moisture), 91.4 parts of potassium chloride and 1.0 part of sodium polyacrylate (manufactured by Katayama Chemical Co., Ltd.) 3.0 parts of an agent (Olfin E1010, manufactured by Nissin Chemical Co., Ltd.) and 0.5 part of polyvinyl alcohol (Gohsenol GL05, manufactured by Nippon Gohsei) are dissolved and kneaded in 15 parts of water, and a 1.0 mm screen is screened. It was extruded and granulated with a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.), dried by blowing hot air at 70 to 80 ° C., sieved and sized, and 0.3 to 2.8 mm ( Granular solids in the range of It was obtained -2. The active ingredient of the solid preparation eluted quickly in water.
As a result of measuring the physical properties of the granular solid agent 2, the following values were obtained.
Angle of repose: 40.3 ° Particle size (MD50): 0.95 mm
DV value: 54.7 Density: 1.25 g / cm ³

Production Example 3 Production of granular solid agent 3 36 parts of compound (a), 0.5 parts of polyoxyalkylene alkyl ether ammonium sulfate, 0.5 parts of polyvinyl alcohol (Gohsenol GH-20, manufactured by Nippon Gosei), 10 parts of white carbon , And kneaded by adding water to the mixture of 53 parts of clay, and extruded and granulated with a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen, and 70 to 80 ° C. , And dried, sieved and sized to obtain a granular solid agent-3 in a range of 0.3 to 2.8 mm (mesh opening). The elution of the active ingredient of the solid preparation in water was suppressed.
As a result of measuring the physical properties of the granular solid agent 3, the following values were obtained.
Angle of repose: 41.6 ° Particle size (MD50): 1.29 mm
DV value: 55.8 Density: 1.05 g / cm ³

Production Example 4 Production of granular solid agent 4 12 parts of compound (a), 0.5 parts of polyoxyalkylene alkyl ether ammonium sulfate, 0.5 parts of polyvinyl alcohol (Gohsenol GH-20, manufactured by Nippon Gosei), 10 parts of white carbon , A mixture of 77 parts of clay, water was added and kneaded, and the mixture was extruded and granulated by a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 0.9 mm screen, and 70 to 80 ° C. And dried and sieved to obtain a granulated solid agent-4 having a size in the range of 0.3 to 2.8 mm (mesh opening). The elution of the active ingredient of the solid preparation in water was suppressed.
As a result of measuring the physical properties of the granular solid agent 4, the following values were obtained.
Angle of repose: 41.0 ° Particle size (MD50): 0.96 mm
DV value: 53.7 Density: 1.24 g / cm ³

Production Example 5 Production of granular solid agent 5 12 parts of compound (a), 0.5 parts of polyoxyalkylene alkyl ether ammonium sulfate, 0.5 parts of polyvinyl alcohol (Gohsenol GL-05, manufactured by Nippon Gosei), 10 parts of white carbon And a mixture of 77 parts of clay, kneaded by adding water, and extruded and granulated with a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen, and 70 to 80 ° C. And dried and sieved to obtain a granular solid agent-5 having a size in the range of 0.3 to 2.8 mm (mesh opening). The active ingredient of the solid preparation had a milder inhibition of dissolution in water than the solid preparation of Preparation Example-4.
As a result of measuring the physical properties of the granular solid agent 5, the following values were obtained.
Angle of repose: 42.5 ° Particle size (MD50): 1.17 mm
DV value: 65.0 Density: 1.21 g / cm ³

Production Example 6 Production of granular solid agent 6 13.5 parts of solid paraffin powder containing 30% of compound (F-1), 0.5 parts of polyoxyalkylene alkyl ether ammonium sulfate, polyvinyl alcohol (Gohsenol GL-05, Nippon Gohsei) A mixture of 0.5 parts, 40 parts of bentonite and 45.5 parts of calcium carbonate was kneaded by adding water, and a basket granulator equipped with a 0.9 mm screen (RG-5, Kikusui Seisakusho) Co., Ltd.), and granulated by blowing hot air of 60 ° C. or less, drying, sieving and sizing to obtain a granular solid agent-5 in a range of 0.3 to 2.8 mm (mesh opening). . The elution of the active ingredient of the solid preparation in water was suppressed.
As a result of measuring the physical properties of the granular solid agent 6, the following values were obtained.
Angle of repose: 42.7 ° Particle size (MD50): 0.93 mm
DV value: 65.6 Density: 1.00 g / cm ³

Comparative Preparation Example A Production of Granular Solid A A 0.60 part of compound (1), 0.12 part of compound (2), 2.80 parts of compound (11), 7.0 parts of compound (13), 0.1 part of soda ash. 5 parts, plastic hollow body (Matsumoto Microsphere-F-30E, 90% moisture, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 1.0 part, potassium chloride 84.4 parts and sodium polyacrylate (Katayama Chemical Co., Ltd.) 1 3.0 parts of a surfactant (Olfin E1010, manufactured by Nissin Chemical Industry Co., Ltd.) and 0.5 part of polyvinyl alcohol (Gohsenol GL05, manufactured by Nippon Gohsei) were dissolved in 15 parts of water and kneaded. The mixture was extruded and granulated by a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen, sized with a marmellaizer, and then blown with hot air at 70 to 80 ° C. Dried, sieved and sized .3~2.8mm obtain a granular solid material -A in the range of (sieve mesh opening).
As a result of measuring the physical properties of the granular solid agent A, the following values were obtained.
Angle of repose: 33.0 ° Particle size (MD50): 1.45 mm
DV value: 41.4 Density: 1.25 g / cm ³

Comparative Preparation Example B Production of Granular Solid Preparation B Compound (1) 0.20 part, compound (2) 0.04 part, compound (11) 0.95 part, compound (13) 2.34 parts, soda ash 0. 5 parts, plastic hollow body (Matsumoto Microsphere-F-30E, 90% moisture, manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.) 5.0 parts, potassium chloride 90 parts and sodium polyacrylate (manufactured by Katayama Chemical Co., Ltd.) 1.0 3.0 parts of a surfactant (Olfin E1010, manufactured by Nissin Chemical Industry Co., Ltd.) and 0.5 part of polyvinyl alcohol (Gohsenol GL05, manufactured by Nippon Gosei Co., Ltd.) are dissolved in 15 parts of water, and kneaded. Extruded and granulated with a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 0.8 mm screen, sized with a marmellaizer, and blown with hot air at 70 to 80 ° C to dry. Sieved and sized to 0 3~2.8mm obtain a granular solid material -B in the range of (sieve mesh opening).
As a result of measuring the physical properties of the granular solid agent B, the following values were obtained.
Angle of repose: 32.3 ° Particle size (MD50): 0.86 mm
DV value: 38.4 Density: 1.35 g / cm ³

Comparative Production Example C Production of Granular Solid Agent C 36 parts of compound (a), 0.5 parts of polyoxyalkylene alkyl ether ammonium sulfate, 0.5 parts of polyvinyl alcohol (Gohsenol GH-20, manufactured by Nippon Gosei), white carbon 10 And a mixture of 53 parts of clay, kneaded by adding water, and extruded and granulated with a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen to form a marmalizer. After sieving, hot air at 70 to 80 ° C. was blown in, dried, sieved and sieved to obtain a granular solid agent-C in the range of 0.3 to 2.8 mm (mesh opening). The elution of the active ingredient of the solid preparation in water was suppressed.
As a result of measuring the physical properties of the granular solid agent C, the following values were obtained.
Angle of repose: 33.8 ° Particle size (MD50): 1.23 mm
DV value: 41.6 Density: 1.26 g / cm ³

Comparative Production Example D Production of Granulated Solid Agent D Water was added to a mixture of 12 parts of compound (a), 0.5 part of polyvinyl alcohol (Gohsenol GH-20, manufactured by Nippon Gohsei), 10 parts of white carbon, and 77.5 parts of clay. In addition, the mixture is kneaded, extruded and granulated by a basket granulator (RG-5, manufactured by Kikusui Seisakusho Co., Ltd.) equipped with a 1.2 mm screen, dried by blowing hot air at 70 to 80 ° C., and sieved. The resulting mixture was sized to obtain a granular solid agent-D in a range of 0.3 to 2.8 mm (mesh opening). The elution of the active ingredient of the solid preparation in water was suppressed.
As a result of measuring the physical properties of the granular solid agent D, the following values were obtained.
Angle of repose 49.3 ° Particle size (MD50): 1.11 mm
DV value: 74.0 Density: 1.24 g / cm ³

II. Production Example 1 of Granular Pesticide Composition
500 g of the granular solid agent 1 (first granular solid agent) and the granular solid agent 3 (second granular solid agent) were each placed in a 3 liter Erlenmeyer flask, gently shaken and uniformly mixed to obtain a granular pesticide composition. I got something.
As a result of measuring the physical properties of the obtained granular pesticide composition, the following values were obtained.
Angle of repose: 40.7 ° Particle size (MD50): 1.27 mm
DV value: 52.6 Density: 1.05 g / cm ³

Examples 2 to 5
In the same manner as in Example 1, each granular solid agent was uniformly mixed. The physical property values of the obtained granular pesticidal composition are shown in Table 1 together with the results of Example 1.

Comparative Examples 1 to 5
In the same manner as in Example 1, each granular solid agent was uniformly mixed. Table 2 shows the physical property values of the obtained granular pesticidal composition.

Test Example 1 Short Tube Spout Spraying Performance Test (Indoor) / Granular Agrochemical Composition of Example 1 As shown in FIG. 1, a backpack type power sprayer (M: MD-J60G manufactured by Maruyama Seisakusho) equipped with a short tube spout. At one end, plastic containers (A to C) (45 cm x 30 cm x 25 cm) are placed at a fixed distance from the sprayer, and containers in rows A and C are covered with a lid with a tear-off string. Covered. The containers were placed at positions 2.5 m, 5.0 m, 7.5 m, 10.0 m, 12.5 m, and 15.0 m away from the tip of the jet head.
3.0 kg of the granular pesticidal composition obtained in Example 1 was charged into a sprayer tank and sprayed under the spraying conditions of a shutter opening of 7 and a throttle fully open. One minute after the start of spraying, the lid in row A and the lid in row C two minutes later were pulled off by pulling off a string for peeling. In about 3 minutes, the application of the whole amount of the particulate pesticide composition was completed.
After the spraying, the weight ratio of the granules collected in each container and the composition ratio of the pesticidal active ingredient were measured. Table 3 shows the results.

第３表の結果から、実施例１で得られた粒状農薬組成物は、動力散布した際、それぞれの粒状固形剤はほぼ同じ散布幅で散布され、各農薬活性成分の実質的な均一施用が可能な組成物であることが確認された。また、試験中にタンク内でブリッジ形成によるトラブルは発生しなかった。

From the results in Table 3, when the granular pesticidal composition obtained in Example 1 was sprayed by power, each granular solid agent was sprayed with substantially the same spray width, and substantially uniform application of each pesticide active ingredient was achieved. The composition was confirmed to be a possible composition. Further, no trouble occurred due to bridge formation in the tank during the test.

Test Example 2 Short Tube Spout Spraying Performance Test (Indoor) / Particulate Pesticide Composition of Comparative Example 1 Similarly to Test Example 1, the sprayability of the particulate pesticide composition of Comparative Example 1 was tested. However, the spraying of the entire amount was completed in about two and a half minutes. The results are shown in Table 4.

第４表の結果から、比較例１で得られた粒状農薬組成物は、動力散布した際、それぞれの粒状固形剤は異なった散布幅で散布され、各農薬活性成分の均一施用が不可能な組成物であることが確認された。なお、試験中にタンク内でブリッジ形成によるトラブルは発生しなかった。

From the results in Table 4, when the granular pesticidal composition obtained in Comparative Example 1 was sprayed with power, each granular solid agent was sprayed with a different spray width, and it was impossible to uniformly apply each pesticide active ingredient. The composition was confirmed to be a composition. Note that no trouble occurred due to bridge formation in the tank during the test.

Test Example 3 Spray Performance Test of Short Tube Spout (Indoor) / Particulate Pesticide Composition of Example and Comparative Example As in Test Example 1, the sprayability of the particulate pesticide composition obtained in the Example and Comparative Example was tested. Table 5 summarizes the results. The results of Test Examples 1 and 2 are also shown.

Test Example 4 Short tube spout spraying performance test (outdoor) / granular pesticide composition of Example 1 As shown in FIG. 2, five granule collecting containers (45 cm × 30 cm × 25 cm) were vertically separated by 2 m at intervals of 2 m. Using a backpack type power spreader (M: MD-J60G manufactured by Maruyama Seisakusho) equipped with a short tube jet head and arranged in four rows at a horizontal interval of 5 m, the power spreader was driven at a speed of 12.5 m / min. The granular pesticide composition was sprayed while moving.
After the spraying, the weight ratio of the granules collected in each container and the composition ratio of the pesticidal active ingredient were measured. Table 6 shows the results.

第６表の結果から、実施例１で得られた粒状農薬組成物は、屋外で動力散布した際にも、それぞれの粒状固形剤がほぼ同じ散布幅で散布され、各農薬活性成分の実質的な均一施用が可能な組成物であることが確認された。また、試験中にタンク内でブリッジ形成によるトラブルは発生しなかった。

From the results shown in Table 6, the granular pesticidal composition obtained in Example 1 was sprayed with the same granular width even when the power was sprayed outdoors, and each granular solid agent was sprayed with substantially the same spray width, and each pesticide active ingredient was substantially dispersed. It was confirmed that the composition could be applied uniformly. Further, no trouble occurred due to bridge formation in the tank during the test.

Test Example 5 Multi-mouth hose spraying performance test (outdoor) / granular agricultural chemical composition of Example 1 A container for collecting granules was arranged in the same manner as in Test Example 4, and a backpack type power sprayer equipped with a 20 m hose ( M: Using a MD-J60G manufactured by Maruyama Seisakusho, the granular pesticide composition was sprayed while moving at a speed of 12.5 m / min.
After the spraying, the weight ratio of the granules collected in each container and the composition ratio of the pesticidal active ingredient were measured. Table 7 shows the results.

第７表の結果から、実施例１で得られた粒状農薬組成物は、屋外で多口ホースを使用し動力散布した際にも、それぞれの粒状固形剤が短管噴頭散布時よりも更に均一な散布幅で散布され、各農薬活性成分の均一施用が可能な組成物であることが確認された。また、試験中、タンク内でのブリッジ形成や、散布用ホースの詰まりなどによるトラブルは発生し
なかった。

From the results shown in Table 7, the granular pesticidal composition obtained in Example 1 was more uniform even when the power was sprayed outdoors using a multi-hose hose than when the short-tube spout was sprayed. It was confirmed that the composition was sprayed at a wide spray width and that the pesticidal active ingredients could be uniformly applied. During the test, no trouble occurred due to bridge formation in the tank or clogging of the spraying hose.

It is a schematic diagram which shows the spraying performance test method of the granular pesticide composition with a sprayer from a fixed position. It is a schematic diagram which shows the spraying performance test method of the granular pesticide composition by moving a spraying machine.

Claims (9)

A particulate pesticidal composition comprising two or more granular solids having different types and / or dissolution behaviors of pesticide components, and capable of being uniformly sprayed, characterized by being defined by the following (1) to (3) Granular pesticide composition.
(1) The angle of repose of the granular solid agent and the granular pesticide composition is “35 ° to 45 °”, and the angle of repose of each granular solid agent is within the range where the “minimum value / maximum value” is 0.85 or more. It is.
(2) The granular solid agent and the granular pesticidal composition are composed of an aggregate of solid particles having a particle size of "0.3 to 2.8 mm" at 90% by weight or more, and the MD50 of each granular solid agent is the "minimum value". / Maximum value is in the range of 0.7 or more, the DV value (particle size distribution index) of the granular solid agent is “45 to 70”, and the DV value (particle size distribution index) of the granular pesticide composition is “ 50-70 ".
Here, the DV value represents a value obtained by the following formula.
[Formula 1]
DV = [(MD90−MD10) / MD50] × 100
MD90: 90% cumulative particle size (mm)
MD10: Cumulative 10% particle size (mm)
MD50: Cumulative 50% particle size (mm)
The MD value was obtained from the weight% value on each sieve obtained by the "sieving method" to obtain an approximate curve of the moving average, and the value read from the graph.
(3) The granular solid agent is an aggregate of solid particles having a density of “0.5 to 5.0 g / cm ³ ”, and the density of each granular solid agent is such that the “minimum value / maximum value” is 0.8 or more. Within a certain range.   The granular pesticidal composition according to claim 1, wherein the pesticidal component is selected from a herbicidal active ingredient, an insecticidal active ingredient, and a bactericidal active ingredient, and a granular solid containing only the herbicidal active ingredient is an essential component.   The granular pesticidal composition according to claim 1, wherein the pesticidal ingredient is selected from a herbicidal active ingredient, an insecticidal active ingredient, and a bactericidal active ingredient, and a granular solid containing the insecticidal active ingredient is an essential component.   The granular pesticidal composition according to claim 1, wherein the pesticidal component is selected from a herbicidal active ingredient, an insecticidal active ingredient, and a fungicidal active ingredient, and a granular solid containing the fungicidal active ingredient is an essential component. Herbicidally active ingredients include bensulfuron-methyl, azimsulfuron, imazosulfuron, pyrazosulfuron-ethyl, cinosulfuron, ethoxysulfuron, cyclosulfamuron, pyriminobac-methyl, pyriftalide, dimelon, indanophane, cafenstrol, chromemeprop, bifenox, esprocarb, benthiocarb , Pyributicarb, bromobutide, butachlor, pretilachlor, tenylchlor, etobenzanide, benzofenap, cyhalofop butyl, mefenacet, fentrazamide, anilofos, oxadiclofen, pentoxazone, naproanilide, benzobicyclon, oxadiclomehon, simethrin, dimethametrine, dimethametrine, dimethametrine One or more selected compounds It is those,
Insecticidally active ingredients include monocrotophos, propaphos, fenthion, fenitrothion, fentoate, diazinon, disulfoton, dimethoate, chlorpyrifosmethyl, pyridafenthion, dimethylvinphos, cycloprothrin, etofenprox, silafluofen, cartap, bensultap, thiocyclam, fenocarb, carbofuran , Carbosulfan, flatiothiocarb, benflacarb, propoxur, carbaryl, isoprocarb, imidacloprid, nitenpyram, acetamiprid, thiacloprid, thiamethoxam, clothianidin, dinotefuran, buprofezin, azadirachtin, tebufenozide, methoxyfenozide, cromafenodide, clofenectin Is one or more compounds selected from Ipuroniru,
One or more selected from thiazinyl, isoprothiolane, tricyclazole, azoxystrobin, metminostrobin, orysastrobin, carpropamide, diclosimet, pyroquilon, probenazole, acibenzolar S-methyl, phenoxanil, IBP, flutranil, flametopyr and thifluzamide The granular pesticidal composition according to any one of claims 1 to 4, which is at least two compounds.   The granular pesticidal composition according to any one of claims 1 to 5, further comprising one or more granular solid preparations in which dissolution of the pesticidal component is promoted and / or delayed.   The method for producing a granular pesticidal composition according to any one of claims 1 to 6, wherein two or more types of granular solid preparations having different types and dissolution behaviors of pesticide components are uniformly mixed.   A method for treating a paddy field with the granular pesticidal composition according to any one of claims 1 to 6 at an application rate of 100 g to 10 kg per 10 ares. A method of using the granular pesticidal composition according to any one of claims 1 to 6 in a rice nursery box at an application rate of 1 g to 100 g per box.

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