JP6602195B2 - Solid efficacy enhancer composition for agricultural chemicals - Google Patents

Description

  The present invention relates to a solid efficacy enhancer composition for agricultural chemicals, an agricultural chemical composition, and a solid insecticide composition.

  Agricultural chemicals including insecticides, fungicides, herbicides, acaricides, plant growth regulators are variously devised from the viewpoint of formulation properties in order to sufficiently bring out their effects, such as emulsions, wettable powders, It is used in dosage forms such as granules, powders, flowables, and liquids. On the other hand, spreading agents that improve the adhesion, wettability, permeability, and adhesion of agricultural chemicals are used in order to sufficiently draw out, enhance, and sustain the effect. A pesticide or an additive that enhances the effect of the pesticide is required to have good solubility in water during spraying due to its workability. Furthermore, in recent years, preparations that do not contain organic solvents have been demanded for environmental considerations.

  As a means for sufficiently drawing out the effect of the pesticide and enhancing the efficacy, a technique for improving the amount of adhesion to plants is particularly effective. In addition, it is possible to maintain the effectiveness of the agricultural chemical for a long period of time by the fixing technique that prevents the agricultural chemical from being washed away from the leaf surface due to rain or the like.

  Cellulose derivatives are used as a technique for improving the adhesion and sticking properties of agricultural chemicals to plants. For example, Patent Document 1 discloses an agricultural product containing at least one cellulose derivative selected from water-soluble hydroxypropylcellulose and water-soluble hydroxypropylmethylcellulose, a surfactant such as an alkyl ether of polyoxyalkylene, and water. An additive is disclosed.

JP 2011-207828 A

  However, cellulose derivatives that enhance the efficacy of agricultural chemicals are difficult to dissolve in water, have poor dispersibility, and form mamako, and the swollen polymer tends to agglomerate or gel. Therefore, even if the user tries to use a solid agrochemical efficacy enhancer composition (spreading agent formulation), which is mainly composed of a cellulose derivative when sprayed with agricultural chemicals, in water, it cannot be dissolved immediately. There was a problem that the agglomerate clogged the spreader.

The present invention provides a solid agrochemical efficacy enhancer composition excellent in efficacy enhancement effect and solubility in water, and a pesticide composition using the same.
Moreover, this invention provides the solid insecticide composition excellent in the insecticidal effect and the solubility to water.

  The present invention includes (A) one or more cellulose derivatives selected from hydroxypropylcellulose and hydroxypropylmethylcellulose, (B) one or more compounds selected from polyethylene glycol, glucose, fructose and sucrose, and (C) an alkyl group. A solid efficacy enhancer composition for agricultural chemicals containing one or more surfactants selected from alkyl sulfates having 12 to 16 carbon atoms and alkylbenzene sulfonates having 12 to 16 carbon atoms in the alkyl group .

  Moreover, this invention relates to the agrochemical composition containing the solid efficacy enhancer composition for agricultural chemicals of the said invention, and an agrochemical raw material.

  The present invention also includes (A) one or more cellulose derivatives selected from hydroxypropylcellulose and hydroxypropylmethylcellulose, (B) one or more compounds selected from polyethylene glycol, glucose, fructose and sucrose, and (C) The present invention relates to a solid insecticide composition containing one or more surfactants selected from alkyl sulfates having an alkyl group having 12 to 16 carbon atoms and alkylbenzene sulfonates having an alkyl group having 12 to 16 carbon atoms.

Hereinafter, one or more cellulose derivatives selected from (A) hydroxypropylcellulose and hydroxypropylmethylcellulose will be described as Component A.
Hereinafter, (B) one or more compounds selected from polyethylene glycol, glucose, fructose, and sucrose will be described as Component B.
In addition, (C) one or more surfactants selected from (C) alkyl sulfates having an alkyl group with 12 to 16 carbon atoms and alkylbenzene sulfonates with an alkyl group having 12 to 16 carbon atoms, This will be described as C.

ADVANTAGE OF THE INVENTION According to this invention, the solid efficacy enhancer composition for agricultural chemicals excellent in the efficacy enhancement effect and solubility in water of an agricultural chemical, and an agricultural chemical composition using the same are provided.
Moreover, according to this invention, the solid insecticide composition excellent in the insecticidal effect and the solubility to water is provided.

[Agricultural solid efficacy enhancer composition]
The cellulose derivative of component A is easily agglomerated, mako and gelled in water, and its solubility and dispersibility in water are extremely poor.
In the present invention, by blending a specific compound of Component B and a specific surfactant of Component C, the aggregation of crystals is suppressed when the cellulose derivative crystals swell and dissolve in water. Or the dispersibility of the swollen gel of the cellulose derivative is further improved, so that it is considered that the solubility of the cellulose derivative in water is drastically improved.

<Component A>
Component A is one or more cellulose derivatives selected from hydroxypropylcellulose and hydroxypropylmethylcellulose.
Hydroxypropylcellulose and hydroxypropylmethylcellulose are each preferably water-soluble. With regard to Component A, “water-soluble” means that the solubility in water at 20 ° C. is 100 mg / L or more. The solubility of component A in water is adjusted, for example, to the hydroxypropoxyl group substitution degree or the methoxyl group substitution degree to a suitable range described later, or to adjust the viscosity of the aqueous solution of the cellulose derivative to a suitable range described later. You can control it.

  In the present invention, by using the cellulose derivative of component A, the effect of the cellulose derivative in the present invention (effect of improving the adhesion of the active ingredient to the plant) can be sufficiently exhibited.

Component A is a viscosity at 20 ° C. of a 2% by weight aqueous solution of the cellulose derivative measured by a Brookfield viscometer (hereinafter simply referred to as “2% viscosity”) from the viewpoint of improving the adhesion of the active ingredient to the plant. Is preferably 50 mPa · s or more and 40000 mPa · s or less.
From the viewpoint of improving the adhesion of active ingredients to plants, the 2% viscosity of component A is preferably 100 mPa · s or more, more preferably 400 mPa · s or more, and 1000 mPa · s or more. Is more preferably 2000 mPa · s or more, still more preferably 3000 mPa · s or more, still more preferably 4000 mPa · s or more, and even more preferably 7000 mPa · s or more. Preferably, it is more preferably 8000 mPa · s or more. Further, from the viewpoint of solubility of Component A in water, the 2% viscosity of Component A is preferably 38000 mPa · s or less, more preferably 35000 mPa · s or less, and 30000 mPa · s or less. Is more preferable, and it is still more preferable that it is 20000 mPa * s or less.

Hydroxypropylcellulose has a hydroxypropoxyl group substitution degree of preferably 2.5 or more, more preferably from the viewpoint of improving the adhesion of active ingredients to plants by adjusting the 2% viscosity to the above-mentioned suitable range. It is 3.0 or more, and preferably 4.0 or less, more preferably 3.6 or less.
Here, the “degree of hydroxypropoxyl group substitution” is the average number of hydroxypropoxyl groups introduced per glucose unit (having three hydroxyl groups) of cellulose.

  Hydroxypropyl cellulose may be produced by a known method described in, for example, JP-A-9-202801, or a commercially available product may be used. Examples of commercially available products include the HPC series manufactured by Nippon Soda Co., Ltd. and the Crucel (KLUCEL) series manufactured by Sanki Co., Ltd.

Hydroxypropyl methylcellulose has a methoxyl group substitution degree of preferably 1.4 or more, more preferably 1. from the viewpoint of improving the adhesion of active ingredients to plants by adjusting the 2% viscosity to the above suitable range. 7 or more, and preferably 2.0 or less, more preferably 1.9 or less.
Here, the “degree of methoxyl group substitution” is the average number of methoxyl groups introduced per glucose unit (having three hydroxyl groups) of cellulose.

  Hydroxypropyl methylcellulose may be produced by a known method described in, for example, JP-A-10-158302, or a commercially available product may be used. Commercially available products include, for example, the Metrows series manufactured by Shin-Etsu Chemical Co., Ltd., the Neovisco-MC series manufactured by Sanki Co., Ltd., the Meserose series manufactured by Sakai Kogyo Co., Ltd., and the Mars manufactured by Matsumoto Yushi Seiyaku Co., Ltd. There are Pollows series and METHOCEL series made by Dow Chemical Company. Of these commercially available products, those having a 2% viscosity of more than 2000 mPa · s and not more than 40000 mPa · s are those manufactured by Shin-Etsu Chemical Co., Ltd. Metroles 60SH-4000 (4000, 1.9), 60SH-10000 (10000, 1.9), 65SH-4000 (4000, 1.8), 65SH-15000 (15000, 1.8), 90SH-4000 (4000, 1.4), 90SH-15000 (15000, 1.4), 90SH-30000 (30000, 1.4), Tricrystal NEOVISCO MC HM-4000 (4000, 1.8), HM-15000 (15000, 1.8), RM-4000 (4000, 1.4), RM-8000 (8000, 1.4), RM-15000 (15000, 1.4) RM-30000 (30000, 1.4), Marprose 60MP-4000 (4000, 1.9), 65MP-4000 (4000, 1.8), 90MP4000 (4000, 1.4), 90MP-15000 (15000, 1.4), manufactured by Matsumoto Yushi Seiyaku Co., Ltd. 90MP-30000 (30000, 1.4), METHOCEL K4M (4300, 1.4), K15M (16000, 1.4), E4M (4300, 1.9), E10M (1) manufactured by Dow Chemical Company 0800, 1.9). Among them, the substitution degree of the methoxyl group is assumed to be 1.7-2, Shinetsu Chemical Industry Co., Ltd. Metros 60SH-4000, 60SH-10000, 65SH-4000, 65SH-15000, Sankei Co., Ltd. NEVISCO MC HM-4000, HM-15000, Marprose 60MP-4000, 65MP-4000 manufactured by Matsumoto Yushi Seiyaku Co., Ltd., METHOCEL E4M, E10M manufactured by Dow Chemical Company. In the parentheses of the commercial product, 2% viscosity (mPa · s) and methoxyl group substitution degree are shown, respectively.

  In the present invention, as the component A, the hydroxypropyl cellulose or hydroxypropylmethylcellulose may be used alone, or hydroxypropylcellulose and hydroxypropylmethylcellulose may be used in combination. From the viewpoint of improving the adhesion of active ingredients to plants, it is preferable to use hydroxypropylmethylcellulose. Therefore, component A is preferably hydroxypropyl methylcellulose. Moreover, it is preferable that the solid efficacy enhancer composition for agricultural chemicals of the present invention contains hydroxypropyl methylcellulose as component A.

<Component B>
Component B is one or more compounds selected from polyethylene glycol, glucose, fructose and sucrose.
The polyethylene glycol has a weight average molecular weight of preferably 1000 or more, more preferably 2000 or more, further preferably 4000 or more, and preferably 500,000 or less, more preferably 100,000 or less, and still more preferably 10,000 or less.
Component B is preferably one or more compounds selected from glucose, fructose and sucrose, and more preferably glucose.
Component B preferably contains one or more compounds selected from glucose, fructose and sucrose, and further contains glucose.

Component B can use a plurality of compounds.
Component B is preferably polyethylene glycol and one or more compounds selected from glucose, fructose, and sucrose from the viewpoints of solubility of the solid efficacy enhancer composition for agricultural chemicals in water and enhanced efficacy of agricultural chemicals. More preferred are polyethylene glycol and glucose.
When Component B is polyethylene glycol and one or more compounds selected from glucose, fructose and sucrose, the mass ratio of polyethylene glycol / (one or more compounds selected from glucose, fructose and sucrose) is a pesticide. From the viewpoint of the solubility of the solid efficacy enhancer composition in water and the enhancement of the efficacy of the agricultural chemical, it is preferably 0.05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, and preferably 1 0.0 or less, more preferably 0.7 or less, still more preferably 0.4 or less.
When Component B is polyethylene glycol and one or more compounds selected from glucose, fructose and sucrose, the proportion of polyethylene glycol in Component B is the solubility of the solid efficacy enhancer composition for agricultural chemicals in water. And from the viewpoint of enhancing the efficacy of agricultural chemicals, preferably 5% by mass or more, more preferably 10% by mass or more, further preferably 20% by mass or more, and preferably 50% by mass or less, more preferably 40% by mass or less, Preferably it is 30 mass% or less.
Further, when Component B is polyethylene glycol and one or more compounds selected from glucose, fructose and sucrose, the ratio of the one or more compounds selected from glucose, fructose and sucrose in Component B is as follows: From the viewpoint of the solubility in water of the solid efficacy enhancer composition for agricultural chemicals and the enhancement of the efficacy of agricultural chemicals, it is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, and preferably It is 95 mass% or less, More preferably, it is 90 mass% or less, More preferably, it is 80 mass% or less.

<Component C>
Component C is one or more surfactants selected from alkyl sulfates having an alkyl group with 12 to 16 carbon atoms and alkylbenzene sulfonates with an alkyl group having 12 to 16 carbon atoms.

  The number of carbon atoms of the alkyl group of the alkyl sulfate is preferably 12 or more and 14 or less from the viewpoint of the solubility in water of the solid efficacy enhancer composition for agricultural chemicals and the enhancement of the efficacy of agricultural chemicals. The alkyl sulfate is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, and more preferably a sodium salt, from the viewpoint of the solubility in water of the solid efficacy enhancer composition for agricultural chemicals and the enhancement of the efficacy of agricultural chemicals.

  The number of carbon atoms of the alkyl group of the alkylbenzene sulfonate is preferably 12 or more and 14 or less from the viewpoint of the solubility in water of the solid efficacy enhancer composition for agricultural chemicals and the enhancement of the efficacy of agricultural chemicals. The alkylbenzene sulfonate is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, and more preferably a sodium salt, from the viewpoints of solubility of the solid efficacy enhancer composition for agricultural chemicals in water and enhanced efficacy of the agricultural chemical.

  Component C is preferably one or more selected from alkyl sulfates having 12 to 16 carbon atoms in the alkyl group, from the viewpoint of the solubility in water of the solid efficacy enhancer composition for agricultural chemicals and the efficacy enhancement of agricultural chemicals. It is a surfactant.

<Composition, optional components, etc.>
The solid efficacy enhancer composition for agricultural chemicals of the present invention is preferably 5% by mass or more, more preferably 10% by mass or more, from the viewpoint of the solubility of the composition in water and the enhancement of the efficacy of agricultural chemicals. More preferably, it is 15% by mass or more, and preferably 80% by mass or less, more preferably 50% by mass or less, and still more preferably 30% by mass or less.

  The solid efficacy enhancer composition for agricultural chemicals of the present invention is preferably 10% by mass or more, more preferably 30% by mass or more, from the viewpoint of solubility of the composition in water and enhanced efficacy of the agricultural chemicals. More preferably, it is 50% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less, and still more preferably 80% by mass or less.

  In the solid efficacy enhancer composition for agricultural chemicals of the present invention, from the viewpoint of solubility of the composition in water and enhanced efficacy of agricultural chemicals, component C is preferably 0.3% by mass or more, more preferably 0.5%. It is contained by mass% or more, more preferably 0.8 mass% or more, and preferably 10.0 mass% or less, more preferably 5.0 mass% or less, and still more preferably 2.0 mass% or less.

  The agrochemical solid efficacy enhancer composition of the present invention contains water in an amount of preferably 2% by mass or less, more preferably 1% by mass or less, and still more preferably 0.5% by mass or less, from the viewpoint of maintaining a solid shape. .

  In the solid efficacy enhancer composition for agricultural chemicals of the present invention, from the viewpoint of solubility of the composition in water and enhanced efficacy of agricultural chemicals, the mass ratio of Component A to Component B is preferably Component A / Component B. Is 0.05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, and preferably 10 or less, more preferably 8 or less, still more preferably 4 or less, and still more preferably 1 or less.

  In the solid efficacy enhancer composition for agricultural chemicals of the present invention, from the viewpoint of solubility of the composition in water and enhanced efficacy of agricultural chemicals, the mass ratio of Component A to Component C is preferably Component A / Component C. Is 0.5 or more, more preferably 2 or more, still more preferably 10 or more, and preferably 100 or less, more preferably 40 or less, still more preferably 30 or less.

  In the solid efficacy enhancer composition for agricultural chemicals of the present invention, from the viewpoint of solubility of the composition in water and enhanced efficacy of agricultural chemicals, the mass ratio of Component B to Component C is preferably Component B / Component C. Is 1 or more, more preferably 5 or more, still more preferably 25 or more, and preferably 150 or less, more preferably 100 or less, still more preferably 90 or less.

  Although the solid efficacy enhancer composition for agricultural chemicals of the present invention may contain a surfactant other than Component C, the proportion of Component C in the total surfactant is preferably 70% by mass or more, more preferably It is 80% by mass or more, more preferably 90% by mass or more, and 100% by mass or less, and may be 100% by mass.

The solid efficacy enhancer composition for agricultural chemicals of the present invention can be produced by mixing Component A, Component B, and Component C.
The form of the solid efficacy enhancer composition for agricultural chemicals of the present invention is preferably a powder.
The solid efficacy enhancer composition for agricultural chemicals of the present invention preferably has an average particle size of 50 μm or more, more preferably 100 μm or more, and preferably 1000 μm or less, more preferably 300 μm or less.
Here, the average particle diameter of the solid efficacy enhancer composition for agricultural chemicals is measured by the following method.
<Measurement method of average particle diameter>
First, using a test sieve described in JIS Z 8801, the particle size distribution is measured according to a screening test method (dry sieving method) described in JIS Z 8815. That is, a sample (solid potency enhancer composition for agricultural chemicals) is placed on a sieve screen, and sieved by vibration and tapping with a predetermined shaker (low tap type sieve shaker). The lower mass is measured to determine the particle size distribution.
Furthermore, an average particle diameter is calculated | required by calculation of the average particle diameter described in JISZ8819 based on the measured particle size distribution.

[Agricultural chemical composition]
The present invention relates to an agrochemical composition containing the above-described solid efficacy enhancer composition for agricultural chemicals of the present invention and an active ingredient of an agricultural chemical.
That is, this invention relates to the agrochemical composition containing the component A, the component B, the component C, and the agrochemical raw material.

  The pesticide active ingredient used in the agrochemical composition of the present invention includes any pesticide active ingredient selected from fungicides, insecticides, acaricides and herbicides. Here, the agrochemical substance refers to a compound that is an active ingredient of an agrochemical.

  Examples of the agrochemical base used in the agrochemical composition of the present invention include those described in the Agricultural Chemicals Handbook 2011 edition (Japan Plant Protection Association, issued on February 25, 2011). It is not limited. Moreover, the solid efficacy enhancer composition for agricultural chemicals of the present invention and the agricultural chemical composition formed by blending it are safe from various chemicals and can be used safely.

  Examples of the bactericidal agent include those described in International Publication No. 2012/029873. The fungicide is preferably basic copper sulfate, organic copper (Oxine-copper), cupric hydroxide, benomyl (methyl [1-[(butylamino) carbonyl]) from the viewpoint of the effect of enhancing efficacy according to the present invention. -1H-benzimidazol-2-yl] carbamate), more preferably basic copper sulfate or benomyl.

  Examples of the insecticide include those described in International Publication No. 2012/029873. The insecticide is preferably permethrin, DDVP (dimethyl 2,2-dichlorovinyl phosphate), mesomil (S methyl-N [(methylcarbamoyl) oxy] thioacetimide), acephate from the viewpoint of the effect of enhancing the efficacy according to the present invention. (Phosphoramidothioic acid-O, S-dimethyl-N-acetyl), more preferably acetic acid.

  Examples of the acaricide include those described in International Publication No. 2012/029873. As the acaricide, phenisobromolate (isopropyl 4,4′-dibromobenzylate), amitraz (3-methyl-1,5-bis (2, 4-xylyl) -1,3,5-triazapenta-1,4-diene), fenpyroximate (tert-butyl = (E) -α- (1,3-dimethyl-5-phenoxypyrazol-4-ylmethyleneaminooxy) ) -p-Truart).

  Examples of the herbicide include those described in International Publication No. 2012/029873. The herbicide is preferably DBN (2,6-dichlorobenzonitrile), DCMU (3- (3,4-dichlorophenyl) -1,1-dimethylurea), paraquat from the viewpoint of the effect of enhancing the efficacy according to the present invention. (1,1'-dimethyl-4,4'-bipyridinium dichloride), diquat (6,7-dihydrodipyrido [1,2-a: 2 ', 1'c] pyrazinedium dibromide), glufosinate (ammonium- DL-homoalanin-4-yl (methyl) phosphinate, glyphosate (N- (phosphonomethyl) glycine or a salt thereof), more preferably glyphosate. Examples of glyphosate include isopropylamine salt, ammonium salt, potassium salt, There are a sodium salt and a trimesium salt, and an isopropylamine salt is preferable.

  In the agricultural chemical composition of the present invention, from the viewpoint of improving the adhesion of the agricultural chemical to the plant and the viewpoint of enhancing the efficacy of the agricultural chemical, the mass ratio of the agricultural chemical raw material to the component A is the agricultural chemical raw material / component A, Preferably it is 0.2 or more, More preferably, it is 0.5 or more, More preferably, it is 1 or more, Preferably it is 80 or less, More preferably, it is 50 or less, More preferably, it is 20 or less.

  Examples of the formulation type of the agricultural chemical composition of the present invention include emulsions, solutions, wettable powders, granules, powders, flowable formulations and the like, and emulsions, solutions and flowable formulations are preferred. It may contain other additives according to these preparation types, for example, emulsifiers, solvents, dispersants, carriers and the like.

  When the pesticidal composition of the present invention is an emulsion, solution, or flowable preparation, the blending concentration of the pesticidal active ingredient in the pesticidal composition is preferably 10 ppm or more, more preferably from the viewpoint of expressing the effect of the pesticidal active ingredient. 100 ppm or more, more preferably 250 ppm or more, and preferably 20000 ppm or less, more preferably 5000 ppm or less, and further preferably 3000 ppm or less.

When the formulation type of the agrochemical composition of the present invention is an emulsion, liquid, or flowable formulation, the blending concentration of the agrochemical solid efficacy enhancer composition of the present invention in the agrochemical composition is a droplet attached to a plant or pest. From the viewpoint of increasing the adhesion amount by preventing sagging of the pesticide and enhancing the efficacy of the agricultural chemical, it is preferably 100 ppm or more, more preferably 500 ppm or more, still more preferably 800 ppm or more, and preferably 10,000 ppm or less, more preferably It is 5000 ppm or less, more preferably 2000 ppm or less.
When the formulation type of the agrochemical composition of the present invention is an emulsion, a liquid, or a flowable formulation, the concentration of component A in the agrochemical composition is determined by the solubility of the solid efficacy enhancer composition for agricultural chemicals in water and the agricultural chemical. From the viewpoint of enhancing efficacy, it is preferably 5 ppm or more, more preferably 50 ppm or more, still more preferably 120 ppm or more, and preferably 8000 ppm or less, more preferably 2500 ppm or less, still more preferably 600 ppm or less.
When the formulation type of the agrochemical composition of the present invention is an emulsion, solution, or flowable formulation, the blending concentration of component B in the agrochemical composition is determined by the solubility of the solid efficacy enhancer composition for agricultural chemicals in water and the agricultural chemical. From the viewpoint of enhancing efficacy, it is preferably 10 ppm or more, more preferably 150 ppm or more, still more preferably 400 ppm or more, and preferably 9000 ppm or less, more preferably 4250 ppm or less, and even more preferably 1600 ppm or less.
When the formulation type of the agrochemical composition of the present invention is an emulsion, a liquid, or a flowable formulation, the concentration of component C in the agrochemical composition is determined by the solubility of the solid efficacy enhancer composition for agricultural chemicals in water and the agricultural chemical. From the viewpoint of enhancing efficacy, it is preferably 0.3 ppm or more, more preferably 2.5 ppm or more, further preferably 6.4 ppm or more, and preferably 1000 ppm or less, more preferably 250 ppm or less, and further preferably 40 ppm or less. is there.

  The method of using the solid efficacy enhancer composition for agricultural chemicals of the present invention includes, for example, a method of using the agricultural chemical compositions of the above-mentioned various dosage forms blended with the solid efficacy enhancing agent composition for agricultural chemicals, and an agricultural chemical (for agricultural chemicals of the present invention) There is a method of using the above-mentioned solid efficacy enhancer composition for agricultural chemicals at the time of dilution use, but both methods provide the excellent efficacy enhancement effect of agricultural chemicals which is the object of the present invention. It is done.

  If necessary, a chelating agent, a pH adjuster, inorganic salts, and a thickener may be added to the preparation of the agricultural chemical composition of the present invention.

Moreover, since the solid efficacy enhancer composition for agricultural chemicals of the present invention can enhance the efficacy of agricultural chemicals, an agricultural chemical raw material, for example, an agricultural chemical raw material selected from fungicides, insecticides, acaricides, and herbicides, Provided is a method for enhancing the efficacy of agricultural chemicals, which is applied to an object together with the solid efficacy enhancing agent composition for agricultural chemicals of the present invention.
Further, since the solid efficacy enhancer composition for agricultural chemicals of the present invention can improve the rain resistance of agricultural chemicals, an agricultural chemical raw material, for example, an agricultural chemical raw material selected from fungicides, insecticides, acaricides, and herbicides, Provided is a method for improving rain resistance of agricultural chemicals, which is applied to an object together with the solid efficacy enhancer composition for agricultural chemicals of the present invention. The method for enhancing the efficacy of the agrochemical of the present invention described above may be a method for enhancing the efficacy of the agrochemical by improving the rain resistance of the agrochemical.
Further, since the solid efficacy enhancer composition for agricultural chemicals of the present invention can improve the sticking property of agricultural chemicals, an agricultural chemical raw material, for example, an agricultural chemical raw material selected from fungicides, insecticides, acaricides, and herbicides, Provided is a method for improving the sticking property of an agricultural chemical, which is applied to an object together with the solid efficacy enhancer composition for agricultural chemicals of the present invention. The above-described method for enhancing the efficacy of the agrochemical of the present invention may be a method for enhancing the efficacy of an agrochemical by improving the sticking property of the agrochemical.

  In the present invention, the target of the agrochemical base is a fungicide as a fungus, an insecticide as a pest (insect), an acaricide as a mite, and a herbicide as a weed (a plant that does not correspond to agricultural crops). It may be a thing. Further, the method for enhancing the efficacy of the agrochemical of the present invention is implemented as a method of applying the agrochemical composition of the present invention to an object selected from weeds, mites, pests and fungi, for example, a method of spraying on a crop cultivation area. it can.

This invention provides the manufacturing method of the agrochemical composition which mixes an agrochemical raw material, the component A, the component B, and the component C.
The matters described in the solid efficacy enhancer composition for agricultural chemicals of the present invention and the agricultural chemical composition of the present invention can be appropriately applied to the method for producing the agricultural chemical composition of the present invention.

[Solid insecticide composition]
The present invention relates to a solid insecticide composition comprising Component A, Component B, and Component C. The combination of component A, component B, and component C exhibits an insecticidal effect.
It has been found that the solid insecticide composition of the present invention exhibits an excellent insecticidal effect even when it does not contain other insecticide pesticide active ingredients (active ingredients of the insecticide). And it was discovered that the solid insecticide composition of this invention is excellent also in the solubility to water.
The matters described in the solid efficacy enhancer composition for agricultural chemicals of the present invention can be appropriately applied to the solid insecticide composition of the present invention.

  In the solid insecticide composition of the present invention, the component A is preferably 5% by mass or more, more preferably 10% by mass or more, and still more preferably from the viewpoint of the solubility of the composition in water and the enhancement of the effectiveness of the agricultural chemical. 15 mass% or more, and preferably 80 mass% or less, More preferably, it contains 50 mass% or less, More preferably, it contains 30 mass% or less.

  In the solid insecticide composition of the present invention, the component B is preferably 10% by mass or more, more preferably 30% by mass or more, and still more preferably, from the viewpoint of the solubility of the composition in water and the enhancement of the effectiveness of the agricultural chemical. 50% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less, and further preferably 80% by mass or less.

  In the solid insecticide composition of the present invention, the component C is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, from the viewpoint of the solubility of the composition in water and the enhancement of the effectiveness of the agricultural chemical. More preferably, it is 0.8% by mass or more, and preferably 10.0% by mass or less, more preferably 5.0% by mass or less, and still more preferably 2.0% by mass or less.

  In the solid insecticide composition of the present invention, the mass ratio of component A to component B is preferably component A / component B from the viewpoint of enhancing the solubility of the composition in water and the efficacy of the agrochemical, and is preferably 0.00. 05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, and preferably 10 or less, more preferably 8 or less, still more preferably 4 or less, and still more preferably 1 or less.

  In the solid insecticide composition of the present invention, the mass ratio of component A to component C is preferably component A / component C from the viewpoint of enhancing the solubility of the composition in water and the efficacy of the agrochemical, and is preferably 0.00. 5 or more, more preferably 2 or more, still more preferably 10 or more, and preferably 100 or less, more preferably 40 or less, still more preferably 30 or less.

  In the solid insecticide composition of the present invention, the mass ratio of component B to component C is preferably component B / component C, preferably 1 or more, from the viewpoint of the solubility of the composition in water and the enhancement of the effectiveness of agricultural chemicals. More preferably, it is 5 or more, More preferably, it is 25 or more, And it is preferably 150 or less, More preferably, it is 100 or less, More preferably, it is 90 or less.

  The solid insecticide composition of the present invention may contain a surfactant other than Component C, but the proportion of Component C in the total surfactant is preferably 70% by mass or more, more preferably 80% by mass. As mentioned above, More preferably, it is 90 mass% or more and 100 mass% or less, and may be 100 mass%.

The solid insecticide composition of the present invention can be produced by mixing component A, component B, and component C.
As for the solid insecticide composition of this invention, it is more preferable that a form is a powder.
The solid insecticide composition of the present invention preferably has an average particle size of 50 μm or more, more preferably 100 μm or more, and preferably 1000 μm or less, more preferably 300 μm or less. Here, the average particle size of the solid insecticide composition is measured by the same method as the average particle size of the solid efficacy enhancer composition for agricultural chemicals of the present invention.

The solid insecticide composition of the present invention can be applied to an object in the same manner as a general insecticide as a treatment liquid diluted with water.
The concentration of the solid insecticide composition of the present invention in the treatment liquid is preferably 100 ppm or more from the viewpoint of preventing dripping of droplets adhering to plants and pests to increase the adhesion amount and obtaining an insecticidal effect. More preferably, it is 500 ppm or more, further preferably 800 ppm or more, and preferably 10,000 ppm or less, more preferably 5000 ppm or less, still more preferably 2000 ppm or less.
The blending concentration of component A in the treatment liquid is preferably 5 ppm or more, more preferably 50 ppm or more, still more preferably 120 ppm or more, and preferably 8000 ppm or less, more preferably 2500 ppm or less, from the viewpoint of obtaining an insecticidal effect. More preferably, it is 600 ppm or less.
The blending concentration of component B in the treatment liquid is preferably 10 ppm or more, more preferably 150 ppm or more, still more preferably 400 ppm or more, and preferably 9000 ppm or less, more preferably 4250 ppm or less, from the viewpoint of obtaining an insecticidal effect. More preferably, it is 1600 ppm or less.
The concentration of component C in the treatment liquid is preferably 0.3 ppm or more, more preferably 2.5 ppm or more, still more preferably 6.4 ppm or more, and preferably 1000 ppm or less from the viewpoint of obtaining an insecticidal effect. More preferably, it is 250 ppm or less, More preferably, it is 40 ppm or less.

<Example 1>
(1) Preparation of a solid efficacy enhancer composition for agricultural chemicals A solid efficacy enhancer composition for agricultural chemicals shown in Table 4 was prepared using the components shown in Tables 1 to 3.
In accordance with the ratio of Table 4, component A, component B, and component C were blended to a total of 100 g, and stirred with a mixer for 1 minute at 20 ° C. to obtain a solid efficacy enhancer composition for agricultural chemicals. It was.
In Table 2, Mw is a weight average molecular weight. In Table 4, components not corresponding to Component C are also shown in the Component C column for convenience.

(2) Evaluation (2-1) Solubility of solid efficacy enhancer composition for agricultural chemicals 1 g (diluted 1000 times) of the solid efficacy enhancing agent composition for agricultural chemicals was added to 1 L of water at 20 ° C. with stirring. Stirring was performed using a stirrer (Three-One Motor, Shinto Chemical Co., Ltd.) and a stirring blade (blade diameter 70 mm, soft cross shape) at a rotation speed of 100 rpm. The time until the solid efficacy enhancer composition for agricultural chemicals was completely dissolved was visually measured.
As a result, according to the solid efficacy enhancer composition for agricultural chemicals of Examples, it was confirmed that the solubility in water can be dramatically improved.

(2-2) Pesticide efficacy enhancement test (2-2-1) Herbicidal enhancement effect Inhibibies were grown in 12 cm pots, and plants having a plant height of about 30 cm were subjected to the test. 4.8 g of round-up solution (herbicide effective component; 41% by mass as glyphosate isopropylamine salt, commercially available, manufactured by Nissan Chemical Industries, Ltd.) and 1 g of a solid efficacy enhancer composition for agricultural chemicals were mixed in 20 ° C. water. Then, the volume was increased to 1 L, and stirred and mixed in the same manner as the test method of (2-1) with a stirring time of 30 minutes. The concentration of glyphosate isopropylamine salt was 1968 ppm, and the solid potency enhancer composition for agricultural chemicals A pesticide composition having a concentration of 1000 ppm was obtained. Next, 5 pots were arranged per 1 m ² of plants, and the agricultural chemical composition was sprayed on the foliage so as to cover the whole plant with a spraying amount of 100 L / 10a. Evaluation of the herbicidal efficacy was performed on the 14th day after spraying, and the above-ground raw mass was measured, and the weeding rate based on the above-ground raw mass in the untreated area was calculated based on the following formula. It shows that the efficacy (herbicidal effect) of an agrochemical was strengthened, so that the numerical value of a weeding rate was high.
Weeding rate (%) = (1− (ground area raw mass of treated area / ground area raw mass of untreated area)) × 100
From the results of Table 4, it was confirmed that the herbicidal effect could be improved according to the agrochemical composition of the present invention.

(2-2-2) Insecticidal enhancement effect Cabbage was cultivated in a 12 cm pot until about the 6th leaf stage. Cabbage leaves having a diameter of about 5 cm were collected one by one and subjected to the test. Oltran wettable powder (insecticide active ingredient: 50% by mass as acephate, commercial product, Hokuko Chemical Co., Ltd.) 1 g, pesticide solid efficacy enhancer composition 1 g and 20 ° C. water are mixed, Make up to 1 L, stir and mix in the same manner as in the test method of (2-1) with a stirring time of 30 minutes, and the concentration of Orthran wettable powder is 1000 ppm (acephete, which is the active ingredient of pesticide active ingredient). 500 ppm), an agrochemical composition having a solid agricultural chemical potentiator composition concentration of 1000 ppm was obtained. 30 commercially available cotton aphids (manufactured by Sumika Techno Service Co., Ltd.) were placed on each cabbage leaf, and the above-mentioned pesticide composition was sprayed onto the leaves at a spraying amount of 2 mL per leaf. The iteration is 3 iterations. In a petri dish, the cabbage leaf was sealed with tape so that the aphids would not escape on a filter paper moistened with water, and stored at 23 ° C. One day later, the insecticidal rate was calculated from the following formula by measuring the number of live insects.
Insecticidal rate (%) = (1− (number of surviving insects in treated group / number of surviving insects in untreated group)) × 100
From the results of Table 4, it was confirmed that according to the agrochemical composition of the present invention, the insecticidal effect can be improved.

(2-2-3) Bactericidal enhancement effect Cucumber seedlings were cultivated in a 12 cm pot until the fourth leaf stage. Cucumber seedlings 1 m ² per 5 pots arranged, spore suspension of cucumber gray mold fungus (Botrytis cinerea) (number of bacteria 10 ⁷ / mL), were applied at an application rate of 50L / 10a cucumber. Thereafter, the pot was allowed to stand at 25 ° C. and 90% relative humidity to infect bacteria. 0.5 g of benrate wettable powder (bactericide effective component; 50% by mass effective as benomyl, commercially available product, manufactured by Sumitomo Chemical Co., Ltd.), 1 g of a solid efficacy enhancer composition for agricultural chemicals shown in Table 4, and 20 ° C. Mix with water, make up to 1 L, stir and mix in the same manner as in the test method of (2-1) with a stirring time of 30 minutes, and the concentration of benrate wettable powder is 500 ppm (pesticide active ingredient) An effective amount of benomyl was 250 ppm), and an agrochemical composition in which the concentration of the solid efficacy enhancer composition for agricultural chemicals was 1000 ppm was obtained. Three days after infecting the fungus, each pesticide composition was sprayed onto the cucumber with a spraying amount of 100 L / 10a. The pot was allowed to stand at 25 ° C. and 85% relative humidity, and after one week, the number of lesions was counted, and the control value was calculated using the following formula. It shows that the efficacy (bactericidal effect) of an agricultural chemical is so high that the numerical value of a control value is high.
Control value (%) = {1− (number of lesions in treated area / number of lesions in untreated area)} × 100
From the results of Table 4, it was confirmed that according to the agrochemical composition of the present invention, the bactericidal effect can be improved.

(2-3) Pesticide activity test Using the solid efficacy enhancer composition for agricultural chemicals shown in Table 4 as a solid insecticide composition, 2 g thereof and 20 ° C water were mixed, and the volume was adjusted to 1 L. (2- In the same manner as in the test method 1), the stirring time was 30 minutes, and the mixture was stirred and mixed to obtain a diluted solution of the solid insecticide composition. This dilution was a 500-fold dilution of the solid pesticide composition. Moreover, this dilution liquid did not contain other agrochemical raw materials. Using the obtained diluted solution of the insecticide composition as an agrochemical composition, the insecticidal properties were evaluated in the same manner as in (2-2-2).
From the results of Table 4, according to the solid insecticide composition of the present invention, there is a problem in terms of safety with respect to the environment and the human body, and does not include other agrochemical ingredients that impart pesticide resistance to insects. However, it was confirmed that an insecticidal effect can be obtained.

* 1 2% viscosity: The viscosity at 20 ° C. of a 2% by weight aqueous solution.
* 2 Degree of substitution: For hydroxypropylcellulose, the degree of substitution of hydroxypropoxyl group, and for hydroxypropylmethylcellulose, the degree of substitution of methoxyl group.

* 1 Mass%: Mass% in the form of each component, and for components that are not 100% effective by mass, the mass% as the effective component is shown in parentheses.
* 2 Mass ratio: Mass ratio based on mass% of each component in terms of effective component.

Claims (5)

  (A) one or more cellulose derivatives selected from hydroxypropylcellulose and hydroxypropylmethylcellulose (hereinafter referred to as component A), (B) one or more compounds selected from polyethylene glycol, glucose, fructose and sucrose (hereinafter referred to as components) B)), and (C) one or more surfactants (hereinafter referred to as alkyl sulfates having 12 to 16 carbon atoms and alkylbenzene sulfonates having 12 to 16 carbon atoms) And a solid efficacy enhancer composition for agricultural chemicals containing component C).   2. The solid efficacy enhancer composition for agricultural chemicals according to claim 1, wherein the mass ratio of Component A to Component B is 0.05 to 10 in terms of Component A / Component B. 3.   The solid efficacy enhancer composition for agricultural chemicals according to claim 1 or 2, wherein the mass ratio of component A to component C is 0.5 to 100 in terms of component A / component C.   The agrochemical composition containing the solid efficacy enhancer composition for agricultural chemicals of any one of Claims 1-3, and an agrochemical raw material.   (A) One or more cellulose derivatives selected from hydroxypropylcellulose and hydroxypropylmethylcellulose, (B) one or more compounds selected from polyethylene glycol, glucose, fructose and sucrose, and (C) alkyl sulfate and alkylbenzene sulfone A solid insecticide composition containing one or more surfactants selected from acid salts.