JP2002293701A - Agricultural and horticultural pesticide composition in the form of a suspoemulsion - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: To provide excellent storage stability, excellent dispersibility and diffusibility on water surface and in water, and further suppress phytotoxicity, especially when phytochemicals directly adhere to agricultural products. Provided is an emulsion type agricultural / horticultural pesticide composition. SOLUTION: (1) The solubility in water is 10 at 25 ° C.
A poorly water-soluble pesticide (a) having a solubility of 0 ppm or less and a melting point of 68 ° C. or less; (2) a solubility in water of 1 at 25 ° C.
And at least one poorly water-soluble solvent (b) selected from the group consisting of fatty acid ester solvents, dibasic acid ester solvents and higher alcohol solvents; and (3) solubility in water at 25 ° C of 100 ppm or less. And (4) a protective colloid agent (d); (5) an aromatic vinyl resin (e); and (6) water (f). And a suspoemulsion type agricultural / horticultural pesticide composition comprising:

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspoemulsion preparation which does not cause phytotoxicity even when attached to agricultural crops and has excellent storage stability even after long-term storage at low and high temperatures.

[0002]

BACKGROUND OF THE INVENTION Agrochemicals are often applied as a mixture to crops because of the ease of handling or the particular combination having a synergistic effect. For ease of use and efficient operation, it is desirable to provide the farmer with a liquid formulation that has been mixed in advance. However, not all combinations of the pesticidal active ingredients provide sufficient compatibility, nor do they provide long-term stable products. In particular, the liquid and solid ingredients have great compatibility problems, and it is very difficult to make a practical mixture.

As one solution to the above problem, a suspo emulsion formulation is known. Suspoemulsion (SE) is an emulsion concentrate (EC) of one component and a suspension concentrate (S) of another component.
C), and various compositions have been studied for ease of handling and the like.

For example, (a) a novel suspoemulsion of a plant-protecting active substance (see JP-A-63-83001); (b) fenoxaprop-ethyl using a sulfourea-based or phenylurea-based herbicide; Suspoemulsion formulation with no difficulties in storage stability technology
132406), (c) a suspoemulsion formulation in which a sulfonylurea is made into an aqueous dispersion (Japanese Patent Laid-Open No. 6-21)
Japanese Patent Application Laid-Open No. 8-67603), and (d) a suspoemulsion formulation containing dithiocarbamate as a solid and triazole, morpholine or pyrimidine as an emulsified component, and the like are known.

[0005] However, in the conventional suspoemulsion preparations (a) to (d), when an emulsion requiring a solvent and a suspension are combined, the adhesion of the drug to agricultural crops at the time of spraying increases, and the drug further increases. However, there is a problem in that the active ingredient easily comes into contact with the elongated portion of the agricultural crop because it spreads on the leaf surface after adhering, and causes serious phytotoxicity. Also, it is known that suspoemulsion preparations generally have a problem that decomposition of a hydrolyzable agricultural chemical substance is greatly accelerated compared to conventional aqueous suspension compositions (flowable).

[0006] For example, in the suspoemulsion preparation (c), the decomposition of sulfonylurea is suppressed by using a polyacryl derivative, but the suspoemulsion preparation using this polyacrylic acid derivative also depends on the combination of drugs. Does not effectively work its decomposition suppression function. In addition, the suspoemulsion preparations (a) to (d)
When an organic solvent having a high dissolving power is used, there is a problem that aggregation of the suspension and the emulsion easily occurs. Therefore, in order to solve the above problem, a suspoemulsion formulation containing an aromatic vinyl resin (for example,
See Japanese Patent Application Laid-Open No. 2000-344604).

One of the features of the suspoemulsion preparation is that, even if it adheres to the leaf surface of agricultural crops, the drug does not spread from the leaf surface to the elongation part due to the adhesive force of the drug, thereby preventing phytotoxicity. I have. However, this suspoemulsion formulation has a high tendency to cause phytotoxicity due to the pesticidal drug substance adhering to the leaf surface, and has a problem of causing strong phytotoxicity when the drug is attached near the elongation portion or directly.

[0008]

The problem to be solved by the present invention is to effectively inhibit the decomposition of herbicidally active ingredients having high hydrolyzability and to maintain the storage stability even after long-term storage at low and high temperatures. In addition, while maintaining the performance excellent in dispersibility and diffusion on the water surface and water, further phytotoxicity,
In particular, it is an object of the present invention to provide an agricultural and horticultural agricultural chemical composition in the form of a suspoemulsion, which can further suppress the phytotoxicity when the chemical is directly attached to agricultural products.

[0009]

Means for Solving the Problems The present inventors have conducted various studies to solve these problems, and as a result, have been able to effectively suppress the decomposition of the pesticidal active ingredient having high hydrolyzability and obtain an excellent long-term excellent effect. Shows storage stability, and is excellent in dispersibility and diffusibility on water surface and in water, and shows stable control effect, while suppressing the adhesion of chemicals to agricultural crops, especially to the foliage of agricultural crops. Even when adhered, by suppressing the spread of the drug from the leaf surface to the elongation portion by the adhesive force of the drug, to find an agricultural and horticultural pesticide composition in the form of a suspoemulsion that can effectively suppress phytotoxicity, The present invention has been completed.

That is, according to the present invention, the solubility in water is 25 ° C.
And a water-insoluble agrochemical substance (a) having a melting point of 68 ° C. or less and a solubility in water of 25
At 100 ° C. or less, fatty acid ester solvent,
One or more poorly water-soluble solvents (b) selected from the group consisting of dibasic acid ester solvents and higher alcohol solvents
A water-insoluble agrochemical raw material (c) having a solubility in water of 100 ppm or less at 25 ° C. and a melting point of 69 ° C. or more, a protective colloid agent (d), and an aromatic vinyl resin (e). , Water (f) and an agricultural and horticultural agricultural chemical composition in the form of a suspoemulsion.

[0011] The present invention also provides a method of using the agricultural chemical and horticultural agricultural chemical composition in the form of a suspoemulsion, which is sprayed on a paddy field.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The poorly water-soluble pesticidal drug substance of the present invention (a)
Means that the solubility in water is 100 ppm or less at 25 ° C, and the melting point is 68 ° C or less, preferably -40 to 68 ° C.
° C refers to the pesticide drug substance, and includes herbicides, fungicides, insecticides, acaricides, and the like. Examples of the herbicide in the poorly water-soluble pesticide drug substance (a) include, for example, 2- (1,2-dimethylpropylamino) -4-ethylamino-6-methylthio-
1,3,5-triazine (common name, dimethamethrin),
2-chloro-2 ', 6'-diethyl-N- (2-propoxyethyl) -acetanilide (general name, pretilachlor), S, S-dimethyl-2- (difluoromethyl)
-4-isobutyl-6- (trifluoromethyl) -3,
5-pyridine dicarbothionate (generic name, dithiopyr), S-benzyl-N- (1,2-dimethylpropyl) -N-ethylthiocarbamate (generic name, esprocarb), 2,3-dihydro-3, 3-dimethylbenzofuran-5-yl ethanesulfonate (generic name, benfresate), butyl = (R) -2- [4- (4-cyano-2-fluorophenoxy) phenoxy] propionate (generic name, cyhalofop butyl) ), S-1-methyl-1-phenylethyl = piperidine-1-carbothioate (generic name, dimepiperate) and the like.

Of these, 2- (1,2-dimethylpropylamino) -4-ethylamino-6-methylthio-
1,3,5-triazine, 2-chloro-2 ′, 6′-diethyl-N- (2-propoxyethyl) -acetanilide, S, S-dimethyl-2- (difluoromethyl) -4
-Isobutyl-6- (trifluoromethyl) -3,5-
Pyridine dicarbothionate, S-benzyl-N-
(1,2-dimethylpropyl) -N-ethylthiocarbamate, 2,3-dihydro-3,3-dimethylbenzofuran-5-ylethanesulfonate, butyl = (R)
-2- [4- (4-cyano-2-fluorophenoxy)
Phenoxy] propionate and S-1-methyl-1-phenylethyl = piperidine-1-carbothioate are preferably used.

[0014] In the poorly water-soluble pesticide drug substance (a), as fungicides, O, O-diisopropyl-S-benzylthiophosphate (general name, IBP), ethyl 2-diethoxythiophosphoryloxy-5- Methylpyrazolo (1,5-a) pyrimidine-6-carboxylate (generic name: pyrazophos), 1- [2- (2,4-dichlorophenyl) -4-propyl-1,3-dioxolan-2-
Ilmethyl] -1H-1,2,4-triazole (generic name, propiconazole) and the like.

The pesticides of the poorly water-soluble pesticide (a) include O, O-dimethyl-S- (N-methylcarbamoylmethyl) dithiophosphate (generic name: dimethoate) and S-4-phenoxybutyl. -N, N-dimethylthiocarbamate (generic name, phenothiocarb), 2
-Sec-butylphenyl-N-methylcarbamate (generic name, BPMC), 2- (4-ethoxyphenyl)
-2-methylpropyl-3-phenoxybenzyl ether (generic name, etofenprox) and the like.
The agricultural chemical composition for agricultural and horticultural use of the present invention can use one or more of these poorly water-soluble pesticide active ingredients, herbicides, fungicides,
It is also possible to mix a plurality of insecticides and the like.

The poorly water-soluble solvent (b) used in the present invention
Has a solubility in water of 1000 ppm or less at 25 ° C.
Preferably not more than 500 ppm, more preferably 100p
pm or less and refers to a fatty acid ester-based solvent, a dibasic ester-based solvent, and a higher alcohol-based solvent that are liquid at 25 ° C. The lower the solubility of this poorly water-soluble solvent (b) in water, the better the storage stability of the agricultural and horticultural agricultural chemical composition. Examples of the fatty acid ester solvents include fatty acids such as 2-ethylhexanoic acid, caprylic acid, capric acid, lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, erucic acid, and brassic acid. Examples of the alkyl ester include saturated or unsaturated fatty acids having 8 to 22 carbon atoms. Examples of the alkyl ester include a mono- and a straight-chain or branched alkyl chain having 1 to 18 carbon atoms such as methyl ester, butyl ester, isobutyl ester and oleyl ester. Ester type, mono-, di- and triester types with glycols having 2 to 10 carbon atoms such as ethylene glycol, propylene glycol, polyethylene glycol (5 mol), neopentyl glycol, glycerin and the like can be mentioned. For example, oleic acid methyl ester, linoleic acid ethyl ester, linolenic acid methyl ester, 2-ethylhexanoic acid triglyceride, caprylic triglyceride, capric triglyceride, oleic triglyceride, octanoic triglyceride, linoleic triglyceride, linolenic triglyceride, erucic acid Triglyceride, neopentyl glycol dioctanoate, neopentyl glycol dicaprate and the like.

Examples of the fatty acid ester-based solvents include vegetable oils, and their composition is a mixture mainly composed of triglyceride oleate, triglyceride linoleate, triglyceride linolenate, triglyceride erucate and the like. Vegetable oils include soybean oil, olive oil, jojoba oil, castor oil, rapeseed oil, palm oil, corn oil, safflower oil, kapok oil, camellia oil, coconut oil, sesame oil, rice bran oil, falling raw oil, cottonseed oil, linseed oil, and cutting oil oil,
Sunflower oil, safflower oil and the like.

Examples of dibasic acid ester solvents include oxalic acid, malic acid, citric acid, adipic acid and phthalic acid.
An ester compound of a dibasic acid having two carboxylic acid groups, and as the alkyl ester, a methyl ester,
It is an ester compound with a linear or branched alkyl chain having 1 to 18 carbon atoms, such as butyl ester, isobutyl ester, and oleyl ester, for example, isostearyl malate, di (2-heptylundecyl) adipate,
Examples include dimethyl glutarate, dimethyl succinate, dimethyl adipate, diisobutyl adipate, diisodecyl adipate, dimethyl phthalate, diethyl phthalate, diisobutyl phthalate, and diisotridecyl phthalate.

The higher alcohol solvents include those having 6 carbon atoms.
-24 straight-chain or branched-chain saturated or unsaturated alcohols, such as octanol, heptyl alcohol, decyl alcohol, oleyl alcohol, hexyldecanol, isostearyl alcohol, octyldodecanol, decyltetradecanol, and the like. Among the poorly water-soluble solvents (b), soybean oil is particularly preferably used.

The poorly water-soluble pesticide drug substance (c) of the present invention refers to a pesticide drug substance having a solubility in water of not more than 100 ppm at 25 ° C. and a melting point of not less than 69 ° C., preferably 69 to 350 ° C. Agents, fungicides, insecticides, acaricides and the like.

The water- and oil-poorly soluble pesticide drug substance (c)
Among them, examples of herbicides include O-3-tert-butylphenyl-6-methoxy-2-pyridyl (methyl)
Thiocarbamate (generic name, pyributicarb), 5-
(2,4-dichlorophenoxy) -2-nitromethylbenzoate (generic name, bifenox), 2-chloro-
N- (3-methoxy-2-thenyl) -2 ′, 6′-dimethylacetanilide (generic name, tenylchlor), 1-
(Α, α-dimethylbenzyl) -3- (paratolyl) urea (generic name, Dymron), N, N-diethyl-3-
Mesitylsulfonyl-1H-1,2,4-triazole-1-carboxamide (generic name: capfentrol), methyl-α- (4,6-dimethoxypyrimidine-
2-yl) carbamoylsulfamoyl] -o-toluate (generic name: bensulfuronmethyl), 2-bromo-
N- (α, α-dimethylbenzyl) -3,3-dimethylbutanamide (generic name: bromobutide), 1- (2-chloroimidazo [1,2-a] pyridin-3-ylsulfonyl) -3- ( 4,6-dimethoxypyridin-2-yl)
Urea (generic name, imazosulfuron), 1-{[O- (cyclopropylcarbonyl) phenyl] sulfamoyl}
-3 (4,6-dimethoxy-2-pyrimidinyl) -urea (generic name: cyclosulfamuron) and the like, of which O-3-tert-butylphenyl-6 is preferred.
-Methoxy-2-pyridyl (methyl) thiocarbamate, 5- (2,4-dichlorophenoxy) -2-nitromethylbenzoate, 2-chloro-N- (3-methoxy-2-thenyl) -2 ', 6′-dimethylacetanilide, 1- (α, α-dimethylbenzyl) -3- (paratolyl) urea, N, N-diethyl-3-mesitylsulfonyl-1H-1,2,4-triazole-1-carboxamide, Methyl-α- (4,6-dimethoxypyrimidine-
2-yl) carbamoylsulfamoyl] -o-toluate, 2-bromo-N- (α, α-dimethylbenzyl)
-3,3-dimethylbutanamide, 1- (2-chloroimidazo [1,2-a] pyridin-3-ylsulfonyl)-
3- (4,6-dimethoxypyridin-2-yl) urea,
1-{[O- (cyclopropylcarbonyl) phenyl]
Sulfamoyl} -3 (4,6-dimethoxy-2-pyrimidinyl) -urea and the like.

In addition, such a poorly water-soluble pesticide drug substance (c)
Examples of the bactericide include manganese ethylenebis (dithiocarbamate) (generic name: maneb), 3
-Allyloxy-1,2-benzisothiazole-1,
1-dioxide (generic name, probenazole), 2-methyl-3'-isopropoxybenzanilide (generic name, mepronil), 4,5,6,7-tetrachloroisophthalonitrile (generic name, TPN), dimethyl- 4,4'-O
-Phenylenebis (3-thioallophanate) (common name, thiophanate methyl) and the like. Furthermore, among such poorly water-soluble pesticide drug substances (c), dimethyl-2-chloro-1- (2,4-dichlorophenyl) vinyl phosphate (generic name: dimethylvinphos), 1- Naphthyl-N-methyl carbamate (generic name, NAC), 2-isopropylphenyl-N-methyl carbamate (generic name, MIPC) and the like can be mentioned.

In the agricultural / horticultural pesticide composition of the present invention, one or more of these poorly water-soluble pesticide active ingredients can be used, and a plurality of herbicides, fungicides, insecticides, etc. can be mixed. .

It is also possible to add a water-soluble agricultural chemical formulation to the suspoemulsion agricultural / horticultural agricultural chemical composition of the present invention as long as storage stability is not impaired.

The protective colloid agent (d) used in the present invention
A conventionally known protective colloid agent is used. Examples of the protective colloid agent (d) include polyvinyl alcohol, methylcellulose, carboxymethylcellulose, methylhydroxyethylcellulose, methylhydroxypropylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, and hydroxypropylcellulose.
You may use together.

Polyvinyl alcohol has a molecular weight of 2
It has a molecular weight of 500 to 2500 and a saponification degree of about 75 to 95 mol%. Among the protective colloid agents (d), polyvinyl alcohol is particularly preferably used.

The aromatic vinyl resin (e) used in the present invention includes a styrene resin, a phthalic acid resin, an aromatic polyamide resin, a xylylene resin, a bisphenol resin, an isocyanate resin, and phenylene. Resins, and preferably styrene resins. The system referred to here is a resin in which other monomers are common,
For example, it is meant to include those of a copolymer with acrylic acid, butadiene, vinyl acetate, methacrylic acid, and the like. If an aromatic group is an essential component, one or more other monomers are combined. Is also good.

As the styrene resin, a styrene / acrylic ester copolymer is preferably used. For example, a styrene / acrylic acid ester copolymer having an average molecular weight of about 100,000 to 900,000, preferably 300,000 to 700,000 can be used.
It is preferably used in the state of a dispersion containing 0 to 60% by weight. It is preferred to use it in a form such as, for example, an emulsion or a hydrosol.

The agricultural chemical and horticultural agricultural chemical composition of the present invention in the form of a suspoemulsion requires water (f) in addition to the above.

The agricultural chemicals for agricultural and horticultural use in the form of a suspoemulsion of the present invention may further comprise a crystal precipitation inhibitor in addition to the components (a) to (f) described above. Examples of the crystal precipitation inhibitor include resin derivatives such as rosin glycerin ester (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7518), Agrimer VEMA series (manufactured by ISP), and Agrimer VA series (ISP).
JAPAN), Sokalan HP53 (BAS
And water-soluble resins such as rosin glycerin ester.

Known and commonly used surfactants may be added to the extent that the stability of the suspoemulsion agricultural / horticultural agricultural chemical composition of the present invention is not impaired. As the surfactant,
Nonionic and anionic surfactants are used. Specifically, polyoxyethylene tristyryl phenyl ether, polyoxyethylene / polyoxypropylene block polymer, polyoxyethylene tristyryl phenyl ether derivative, sorbitan fatty acid ester, polyoxyethylene alkyl phenyl ethers, polyoxyethylene aryl phenyl ethers Nonionic surfactants such as polyoxyethylene castor oil ethers, polyoxyethylene sorbitan esters, polyglycerin fatty acid esters, sorbite fatty acid esters, and polyoxyethylene sorbitan fatty acid esters, and these may be used alone. , May be used together.

Examples of the polyoxyethylene tristyryl phenyl ether include polyoxyethylene (5 to 40 mol) tristyryl phenyl ether.
Examples of the polyoxyethylene / polyoxypropylene block polymer include those having an average molecular weight of 500 to 20,000, preferably 1,000 to 10,000. The ratio of polyoxyethylene in the block polymer is preferably 5 to 70%, more preferably 20 to 65%.
It is.

As the polyoxyethylene tristyryl phenyl ether derivative, polyoxyethylene (5 to 4)
0 mol) of tristyryl phenyl ether sulfate, and polyoxyethylene (5 to 40 mol) of tristyryl phenyl ether phosphate.

Examples of the salt include sodium, potassium, magnesium, calcium, ammonium, ethanolamine, diethanolamine, triethanolamine and the like.

As the sorbitan fatty acid ester, an ester of a fatty acid having 5 to 20 carbon atoms and sorbitan is preferable, for example, sorbitan monopalmitate, sorbitan monooleate, sorbitan trioleate, sorbitan tristearate, sorbitan sesquistearate and the like. No. These surfactants can be used alone or in combination of two or more. If necessary, a small amount of a known and commonly used anionic surfactant can be added to the agricultural chemical formulation as long as the effects of the present invention are not impaired.

Further, a known and commonly used organic solvent other than the poorly water-soluble solvent (b) can be added as long as the stability of the agricultural / horticultural agricultural chemical composition of the present invention is not impaired. Examples of the organic solvent include ketones and hydrocarbons.

The agricultural / horticultural pesticide composition of the present invention may further comprise, if necessary, a known and commonly used antifoaming agent, antifreezing agent,
It may contain additives such as preservatives and thickeners. As the antifoaming agent, for example, a silicone type antifoaming agent can be used. Examples of the antifreeze include diols such as ethylene glycol and diethylene glycol, glycol ethers, and urea.

As a preservative, for example, Bestside 100
0 (manufactured by Dainippon Ink and Chemicals, Inc.) and Best Side 300 (manufactured by Dainippon Ink and Chemicals, Inc.).

Examples of the thickener include heteropolysaccharide gums such as xanthan gum and welan gum, inorganic minerals such as bentonite, colloidal silica, and the like.

Next, the outline of the method for producing the agricultural / horticultural agricultural chemical composition of the present invention will be described. The method for producing a pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion according to the present invention comprises the steps of: (a) a poorly water-soluble pesticide active ingredient (a), a poorly water-soluble solvent (b), a protective colloid agent (d ₁ ), (F ₁ ) to produce an emulsion part.

(B) A suspension containing a protective colloid agent (d ₂ ), water (f ₂ ), and a poorly water-soluble pesticide base material (c) is produced.

(C) Finally, the emulsion part prepared in (a), the suspension part prepared in (b), and the aromatic vinyl resin (e) are mixed. Alternatively, the aromatic vinyl resin (e) may be produced by adding it to either the emulsion part or the suspension part, and finally mixing with the other one.

The production method will be described in more detail. 0.1 to 30 parts by weight of the poorly water-soluble pesticide drug substance (a), 0.1 to 50 parts by weight of the poorly water-soluble solvent (b), protective colloid (d ₁ )
1.0 to 15 parts by weight, and then water (f ₁ ) 5 to 9
Into 8.7 parts by weight, the mixture is stirred and mixed, and further emulsified by an emulsifier or a wet pulverizer into fine particles having a particle size of 0.1 to 15 μm, more preferably 0.1 to 5 μm to produce an emulsion portion.

Next, 1 to 15 parts by weight of the protective colloid (d ₂ )-(parts by weight of the protective colloid used in the emulsion part) and 5 to 98.7 parts by weight of water (f ₂ ) -the emulsion part 0.1 to 30 parts by weight of a poorly water-soluble pesticide drug substance (c) is added to a system obtained by stirring and mixing parts by weight of used water), and the mixture is further stirred and mixed to produce a mixed slurry.
The suspension is produced by finely pulverizing the particles to a particle size of 0.1 to 15 μm, more preferably 0.1 to 5 μm by a wet pulverizer.

Finally, the emulsion part, the suspension part, and 0.1 to 30 parts by weight of the aromatic vinyl resin (e) are mixed to complete the production of the suspoemulsion. Or
1 to 30 parts by weight of the aromatic vinyl resin (e) is added to either the emulsion part or the suspension part to produce the suspension, and finally mixed with the other to complete the production of the suspoemulsion. At this time, the particle size of the suspo emulsion is 0.1 to 15 μm, more preferably 0.1 to 5 μm.
m.

If the above-mentioned range of the particle size exceeds the upper limit, the storage stability deteriorates, which is not preferable. Further, the lower limit is actually obtained industrially, and the lower limit is not particularly limited. The emulsifier referred to here is a known and commonly used emulsifier, such as a homogenizer, a high-pressure emulsifier, or an ultrasonic emulsifier. Examples of the pulverizer include known and commonly used pulverizers, such as a ball mill, a jet pulverizer, and an impact fine pulverizer. Particularly preferably, the mixed slurry is stirred at high speed with fine spherical rigid beads (glass, ceramic, etc.). Method using a wet pulverizer to finely pulverize,
For example, Dynomill KDL type (WILLY A. BACH
OFEN AG Maschinenfabrik B
asel), Ashizawa LMZ type (Ashizawa), Sand grinder (IMEX)
And the like.

It is preferable to use the same protective colloid agent (d) in the case of producing an emulsion part and the case of producing a suspension part. May differ slightly in proportion and type.

The compounding ratio of the poorly water-soluble pesticidal active ingredient (a) in the agricultural chemical and horticultural agricultural chemical composition of the present invention is 0.1 to 30 parts by weight, more preferably 1 to 10 parts by weight. The compounding ratio of the poorly water-soluble solvent (b) is 0.1 to 50 parts by weight, more preferably 1 to 40 parts by weight. Furthermore, the compounding ratio of the poorly water-soluble pesticide drug substance (c) is 0.1 to 30 parts by weight, more preferably 1 to 10 parts by weight. Furthermore, the compounding ratio of the protective colloid agent (d) is 0.5 to 15 parts by weight, more preferably 1 to 10 parts by weight. Furthermore, the compounding ratio of the aromatic vinyl resin (e) is 0.5 to 20 parts by weight, more preferably 1 to 15 parts by weight. Furthermore, the mixing ratio of water (f) is 1 to 9
It is 8.7 parts by weight, more preferably 20 to 60 parts by weight.

The produced agricultural chemicals for agricultural and horticultural use in the form of a suspoemulsion can be sprayed at once with the emulsion composition and the suspension composition, which had to be sprayed separately, thereby saving labor. It is.

The agricultural and horticultural agricultural chemical composition of the present invention in the form of a suspoemulsion has a surface tension at 25 ° C. of at least 37 mN / m, preferably 37 to 55 mN / m, more preferably 38 to 55 mN / m, More preferably 40 to 55 m
N / m. When the surface tension is increased, it is possible to suppress the adhesion of the chemical to the crop, which leads to the suppression of the chemical damage due to the adhesion.

The pesticidal composition for agricultural and horticultural use in the form of the suspoemulsion is applied to plants (foliage application), applied to plant growing soil (soil application), applied to paddy water (water surface application). ), Application to seeds (seed treatment) and the like, and particularly suitable for use in paddy water (water surface application).

When the agricultural and horticultural pesticidal composition of the present invention in the form of a suspoemulsion is used on the surface water (water surface application), it has excellent water dispersibility and diffusibility. Only by direct spraying, the user can easily spray the paddy without entering the paddy. At this time, the spraying device is not particularly limited, but a plastic container, a paper container and the like which are usually used for a water-suspended agricultural chemical composition or the like may be used. When spraying directly on the paddy field using such plastic containers or paper containers, the amount of spraying differs depending on the type of the filled pesticide bulk material, the content in the formulation, etc., so specify it uniformly. Although not possible, 10 to 2000 ml, preferably 50 to 1000 ml, per 10 ares is applied to paddy fields. For example, if the container is filled to a volume of 50 to 1000 ml, one or two containers per 10 ares may be used for paddy fields. The pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion of the present invention is sprayed directly on the surface of a paddy field with a spraying device. Therefore, a sufficient control effect is brought about. Further, the pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion according to the present invention, even when attached to rice, has a high surface tension, so it is difficult to attach to rice, and even if attached to rice, even if attached to rice, Has little expandability,
The drug hardly reaches the elongation part of the rice,
Therefore, there is no fear of causing serious harm.

When the drug is diluted with water and applied, for example, when spraying the medicine over an area of 10 m ² , the spraying tank 1
The operator can safely and easily prepare a spraying liquid simply by adding 5 to 2000 ml, more preferably about 10 to 1000 ml of this drug into 0 liter of water, and can exert a sufficient effect on fruit trees, vegetables and the like. it can.

The agricultural and horticultural pesticidal composition in the form of the suspoemulsion exhibits the same effect not only on the above-mentioned rice but also on other agricultural products. That is, by setting the surface tension high, the adhesion to agricultural crops is effectively suppressed, and the addition of the aromatic vinyl resin (e) increases the viscosity of the oil layer during the evaporation of water after the adhesion, Further, by exhibiting an adhesive force, the spread and absorption of the agricultural and horticultural pesticide composition on the leaf surface after the leaf surface adheres are prevented, and the spread of the drug to the elongated portion of the agricultural crop is prevented. Therefore, it is possible to effectively suppress the absorption of the drug into the crop and the spread of the drug to the elongation part, which is a problem with the conventional suspoemulsion agent, and therefore, the serious phytotoxicity such as the death of the crop is effectively prevented. Is prevented.

Further, the agricultural chemical composition for agricultural and horticultural use in the form of the suspoemulsion can be used to form a chemically unstable sulfonylurea without forming aggregates over a long period of time even under severe conditions of high and low temperature changes. It has good storage stability, for example, by suppressing decomposition of the compound.

[0056]

The present invention will be described in more detail with reference to Examples and Comparative Examples of the present invention, which do not limit the scope of the present invention.

Example 1 After 5 parts by weight of esprocarb and 5 parts by weight of soybean oil were melt-mixed, the liquid was mixed with 28.8 parts of water.
5 parts by weight of polyvinyl alcohol (Kuraray Co., Ltd.
PVA-235) 1 part by weight, propylene glycol 5 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.05 part by weight, defoamer (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) One part by weight was added to the mixed mixture, and emulsified with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm for 5 minutes to obtain an emulsion part.

Next, 37.21 parts by weight of water, 1 part by weight of polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-235), and 0.05 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) are mixed. To the dissolved solution, 10 parts by weight of pyributicarb and 1.7 parts by weight of imazosulfuron were added and dispersed, and this was pulverized with a wet pulverizer to obtain a suspension part.

Emulsion part thus obtained 45.
0 parts by weight, 49.96 parts by weight of a suspension part, and a styrene / acrylic acid copolymer emulsion (solid content: about 50%).
Weight%) (Dainippon Ink and Chemicals, EC
-863) 5 parts by weight and a thickener (manufactured by Rhone Poulin Co., Ltd.)
0.04 parts by weight of Road Pole G) were mixed to obtain a homogeneous suspoemulsion.

Example 2 After mixing 7 parts by weight of esprocarb, 1 part by weight of dithiopyr and 5 parts by weight of soybean oil, this solution was mixed with 25.85 parts by weight of water and polyvinyl alcohol (PVA-220E manufactured by Kuraray Co., Ltd.). 1 part by weight, styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content) (EC-8, manufactured by Dainippon Ink and Chemicals, Inc.)
63) 5 parts by weight, ethylene glycol 5 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.)
Add 0.05 parts by weight and 0.1 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) to a mixture obtained by mixing, and use a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm. The mixture was emulsified for 3 minutes to obtain an emulsion part.

Next, 37.91 parts by weight of water, 1 part by weight of polyvinyl alcohol (PVA-220E, manufactured by Kuraray Co., Ltd.), and 0.05 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) were mixed. To the dissolved solution, 10 parts by weight of pyributicarb and 1.0 part by weight of cyclosulfamuron were added and dispersed, and this was pulverized with a wet pulverizer to obtain a suspension part.

Emulsion part 50.
0 parts by weight, 49.96 parts by weight of a suspension part and 0.04 parts by weight of a thickener (Roadpoul G, manufactured by Rhone Poulin Co.) were mixed to obtain a homogeneous suspension emulsion.

Example 3 After mixing 7 parts by weight of esprocarb, 1 part by weight of benfresate and 5 parts by weight of oleic acid methyl ester, this liquid was added to 26.85 parts by weight of water and polyvinyl alcohol (manufactured by Kuraray Co., Ltd.). PVA-
235) 1 part by weight, styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content) (manufactured by Dainippon Ink and Chemicals, Inc., EC-863) 5 parts by weight, ethylene glycol 5 parts by weight, Bestside 1000 0.05 parts by weight (manufactured by Dainippon Ink and Chemicals, Inc.), antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM55
12) 0.1 part by weight was added to the mixed mixture, and Dynomill KDL type (manufactured by WAB) was charged at a bead filling rate of 3%.
Emulsification was performed under the conditions of 0% and 10 m / s to obtain an emulsion portion.

Next, 35.95 parts by weight of water, 1 part by weight of polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-235) and 0.05 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) were mixed. To the dissolved solution, 10 parts by weight of pyributicarb and 1.0 part by weight of cyclosulfamuron were added and dispersed, and this was pulverized with a wet pulverizer to obtain a suspension part.

Emulsion part 50.
0 parts by weight, 48 parts by weight of a suspension part and 2 parts by weight of a 2% aqueous solution of a thickener (Roadpol G, manufactured by Rhone Poulin Co.) were mixed to obtain a homogeneous suspension emulsion.

Example 4 2 parts by weight of benfresate, 6 parts by weight of diisobutyl adipate, and 5 parts by weight of soybean oil were melt-mixed, and this liquid was added to 25.85 parts by weight of water and polyvinyl alcohol (PVA, manufactured by Kuraray Co., Ltd.). -220) 1
Parts by weight, 5 parts by weight of styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content) (manufactured by Dainippon Ink and Chemicals, Inc., EC-863), 5 parts by weight of ethylene glycol, Best Side 1000 (Dainippon) 0.05 parts by weight, manufactured by Ink Chemical Industry Co., Ltd., defoamer (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.)
0.1 part by weight was added to the mixed mixture, and the mixture was emulsified with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 8000 rpm for 10 minutes to obtain an emulsion part.

Next, 34.95 parts by weight of water, 1 part by weight of polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-220) and 0.05 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) were mixed. To the dissolved solution, 10 parts by weight of pyributicarb and 2.0 parts by weight of imazosulfuron were added and dispersed, and this was pulverized with a wet pulverizer to obtain a suspension part.

Emulsion part 50.
0 parts by weight, 48 parts by weight of a suspension part and 2 parts by weight of a 2% aqueous solution of a thickener (Roadpol G, manufactured by Rhone Poulin Co.) were mixed to obtain a homogeneous suspension emulsion.

Example 5 Esprocarb (5 parts by weight), diisotridecyl phthalate (2 parts by weight), dithiopyr (1 part by weight), soybean oil (5 parts by weight), and antioxidant BHT (0.05 parts by weight) were melt-mixed. 29.80 parts by weight of polyvinyl alcohol (Kuraray Co., Ltd., PVA-23
5) 1 part by weight, styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content) (5 parts by weight, EC-863, manufactured by Dainippon Ink and Chemicals, Inc.), 5 parts by weight of propylene glycol, Bestside 1000 0.05 parts by weight (manufactured by Dainippon Ink and Chemicals, Inc.), antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM551)
2) Add 0.1 parts by weight to the mixed mixture, and use a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 8000 rpm.
Then, the mixture was emulsified at m for 10 minutes to obtain an emulsion part. (5
4.0 parts by weight)

Next, 33.78 parts by weight of water, 1 part by weight of polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-235) and 0.05 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) are mixed. 11 parts by weight of pyributicarb, 1.17 parts by weight of imazosulfuron, and 1 part by weight of rosin glycerin ester (manufactured by Toho Chemical Co., Ltd., Solpol 7518) were added to the dissolved solution and dispersed, and the mixture was pulverized by a wet pulverizer. A suspension part was obtained.

Emulsion part 54 thus obtained
0 parts by weight and 48.0 parts by weight of the suspension part were 5000 rpm with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.).
For 10 minutes, and 2 parts by weight of a 2% aqueous solution of a thickener (Roadpol G, manufactured by Rhone Poulin Co.) were further mixed to obtain a homogeneous suspoemulsion.

Example 6 7 parts by weight of esprocarb, 1 part by weight of benfresate, 7.5 parts by weight of soybean oil, and 0.05 part by weight of an antioxidant BHT were melt-mixed.
28.30 parts by weight of water, 1 part by weight of polyvinyl alcohol (PVA-220E, manufactured by Kuraray Co., Ltd.), styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content) (manufactured by Dainippon Ink and Chemicals, Inc. EC-86
3) 5 parts by weight, 5 parts by weight of propylene glycol, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.)
0.05 parts by weight and 0.1 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) are added to the mixture, and the mixture is mixed at 8,000 rpm with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.). Emulsification was performed for 10 minutes to obtain an emulsion part. (54.0 parts by weight).

Next, 33.35 parts by weight of water, 1 part by weight of polyvinyl alcohol (PVA-235, manufactured by Kuraray Co., Ltd.), and 0.05 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) are mixed. 11 parts by weight of pyributicarb, 1.60 parts by weight of cyclosulfamuron, and 1 part by weight of rosin glycerin ester (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7518) were added to the dissolved solution and dispersed, and the mixture was dispersed by a wet mill. The suspension was crushed to obtain a suspension portion.

Emulsion part 54 thus obtained
0 parts by weight and 48.0 parts by weight of the suspension part were subjected to 5000 rpm with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.).
m for 10 minutes, and 2 parts by weight of a 2% aqueous solution of a thickener (Roadpol G, manufactured by Rhone Poulin Co.) were further mixed to obtain a homogeneous suspoemulsion.

Comparative Example 1 10 parts by weight of pyributicarb
Benfresate 8 parts by weight, diisopropyl naphthalene (KMC-113, KMC-113) 38 parts by weight, sorbitan trioleate (Matsumoto Yushi Seiyaku Co., Ltd., RY-425) 0.6 part by weight, and polyoxyethylene (16) Mol) Tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.)
After melt-mixing 1.0 part by weight, the liquid was added to 24.9 parts of water.
0.7 parts by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) in 5 parts by weight, polyoxyethylene / polyoxypropylene having an average molecular weight of 10,000 and a polyoxyethylene ratio of about 70% 1.0 part by weight of block polymer (New Calgen 70100PB, manufactured by Takemoto Yushi Co., Ltd.), 5 parts by weight of propylene glycol, 0.05 part by weight of Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.), defoamer (Toray SM551, manufactured by Dow Corning Silicone Co., Ltd.
2) Add 0.1 parts by weight to the mixed mixture, and use a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 r.
The mixture was emulsified at pm for 3 minutes to obtain an emulsion part.

Then, 3.7 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.) were added.
05 parts by weight, sodium dioctylsulfosuccinate (Airroll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) 0.05
Parts by weight, 0.05 parts by weight of a polyoxyethylene / polyoxypropylene block polymer (manufactured by Takemoto Oil & Fat Co., Ltd., Newcalgen 70100PB) having an average molecular weight of 10,000 and a polyoxyethylene ratio of about 70%, Dow Corning Silicone Co., Ltd., SM
5512) 1.7 parts by weight of imazosulfuron was added to a solution obtained by mixing and dissolving 0.05 parts by weight and dispersed, and this was pulverized with a wet pulverizer to obtain a suspension part.

Emulsion part 89.
4 parts by weight, 5.6 parts by weight of a suspension part and styrene /
Acrylic acid copolymer emulsion (solid content about 50% by weight
Contained) (Dainippon Ink & Chemicals, Inc., EC-86)
3) 5 parts by weight were mixed to obtain a homogeneous suspoemulsion.

Comparative Example 2 5 parts by weight of pyributicarb, 20 parts by weight of dimethylmonopropylnaphthalene (PAD-1 manufactured by Nikko Petrochemical Co., Ltd.), and sorbitan trioleate (RY-425 manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) 0.5 parts by weight and polyoxyethylene (16 mol) tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd., SOP
After mixing 1.0 part by weight of ROPOR BSU) with 0.627 parts by weight of sodium dioctyl sulfosuccinate (Toho Kagaku Kogyo Co., Ltd., Air Roll CT-1) in 26.73 parts by weight of water, ethylene 6 parts by weight of glycol, 0.05 parts by weight of Bestside 1000 (manufactured by Dainippon Ink and Chemicals, Inc.), xanthan gum thickener (RHODOPOL G, manufactured by Rhone Poulin Co., Ltd.)
02 parts by weight and 0.1 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) were added to the mixture, and Dynomill KDL type (WAB.
Was emulsified under the conditions of a bead filling rate of 30% and 10 m / s to obtain an emulsion portion.

Next, 13.58 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.)
To a solution prepared by mixing and dissolving 0.4 parts by weight and 0.02 parts by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512), 6 parts by weight of cyclosulfamuron was added, dispersed, and wet-pulverized. The suspension was crushed by a machine to obtain a suspension portion.

The thus obtained emulsion part (60 parts by weight), the suspension part (20 parts by weight) and a styrene / acrylic acid copolymer emulsion (containing about 50% by weight of solid content)
(Dainippon Ink and Chemicals, Inc., EC-863) 2
0 parts by weight were mixed to obtain a homogeneous suspoemulsion.

Comparative Example 3 5 parts by weight of esprocarb, 5 parts by weight of benfresate, 10 parts by weight of dimethyldipropylnaphthalene (PAD-2, manufactured by Nikko Petrochemical Co., Ltd.)
Sorbitan monooleate (Matsumoto Yushi Seiyaku Co., Ltd.
After melting and mixing 0.5 parts by weight of Sylvan S-80) and 1.5 parts by weight of polyoxyethylene (14 mol) tristyrylphenyl ether (SORPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.), In 40.71 parts by weight of water, 1 part by weight of sodium dioctyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.), 6 parts by weight of propylene glycol, and a crystal precipitation inhibitor (Agrimer Vema H240, manufactured by ISP) 0.1
4 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.05 part by weight, antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512)
1 part by weight is added to the mixed mixture, and Dynomill KD
L type (manufactured by WAB) was filled with beads at a filling rate of 0% and a peripheral speed of 1
Emulsification was performed under the condition of 0 m / s to obtain an emulsion part.

Next, 11.54 parts by weight of water and 0.2 of polyoxyethylene (14 mol) tristyrylphenyl ether (SORPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.)
4 parts by weight, 0.2 parts by weight of sodium dioctyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.) and 0.02 parts by weight of antifoaming agent (SM5512, manufactured by Tore Dow Corning Silicone Co., Ltd.) were mixed and dissolved. To the solution, 8 parts by weight of cyclosulfamuron was added and dispersed, and this was pulverized by a wet pulverizer to obtain a suspension.

70 parts by weight of the emulsion part thus obtained, 20 parts by weight of the suspension part, and a styrene / acrylic acid copolymer emulsion (containing about 40% by weight of solid content)
(Dainippon Ink and Chemicals, EC-740) 1
0 parts by weight were mixed to obtain a homogeneous suspoemulsion.

Comparative Example 4 10 parts by weight of pyributicarb
Xylene, toluene, 1- / 2-methylnaphthalene (aromatic fraction) (Solvesso 15 manufactured by Exxon Chemical Co., Ltd.)
0) 40.6 parts by weight and 3 parts by weight of a polyoxyethylene caster oil ether (manufactured by Takemoto Oil & Fat Co., Ltd., Newcalgen D-230) were melt-mixed, and the resulting solution was mixed with 30.25 parts by weight of water to obtain 1 part by weight of an aryl phenyl ether phosphate ester salt (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7678), 5 parts by weight of propylene glycol, 0.05 part by weight of Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.), defoaming Agent (Tore ・
Dow Corning Silicone Co., Ltd., SM5512)
0.1 parts by weight were added to the mixed mixture, and the mixture was mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 r.
The mixture was emulsified at pm for 3 minutes to obtain an emulsion part.

Next, 5.35 parts by weight of water, 0.5 parts by weight of polyoxyethylene caster oil ether (New Calgen D-230, manufactured by Toho Chemical Industry Co., Ltd.), and a polyoxyethylene arylphenyl ether phosphate esterified salt ( (Toho Chemical Industry Co., Ltd., Solpol 7678)
4 parts by weight of imazosulfuron was added to a solution obtained by mixing and dissolving 0.1 part by weight and 0.05 part by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) and dispersed. To obtain a suspension part.

90 parts by weight of the thus obtained emulsion part and 10 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

Comparative Example 5 10 parts by weight of esprocarb
Xylene, toluene, 1- / 2-methylnaphthalene (aromatic fraction) (Solvesso 15 manufactured by Exxon Chemical Co., Ltd.)
0) 30 parts by weight and polyoxyalkylene aryl phenyl ether (manufactured by Takemoto Yushi Co., Ltd., Newcalgen F)
S-1) After melt-mixing 5 parts by weight, this liquid was added to water 3
To 8.85 parts by weight, 1 part by weight of polyoxyethylene arylphenyl ether phosphate ester salt (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7678), 5 parts by weight of propylene glycol, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) ) 0.05 parts by weight, defoamer (Toray
Dow Corning Silicone Co., Ltd., SM5512)
0.1 parts by weight were added to the mixture, and the mixture was mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm.
For 3 minutes to obtain an emulsion part.

Next, 5.35 parts by weight of water and polyoxyalkylene aryl phenyl ether (manufactured by Takemoto Yushi Co., Ltd.
Newcargen FS-1) 0.5 part by weight, polyoxyethylene aryl phenyl ether phosphate esterified salt (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7678)
1 part by weight and 4 parts by weight of imazosulfuron were added to a solution prepared by mixing and dissolving 0.05 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) and dispersed, and the mixture was pulverized with a wet pulverizer. And a suspension part.

90 parts by weight of the emulsion part thus obtained and 10 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 6] 10 parts by weight of pyributicarb
7 parts by weight of pretilachlor, xylene / toluene / 1-
/ 2-methylnaphthalene aromatic compound mixture (high-boiling aromatic fraction) (Solvesso 20 manufactured by Exxon Chemical Co., Ltd.)
0) 30 parts by weight and polyoxyethylene caster oil ether (manufactured by Toho Chemical Industry Co., Ltd., SORPOL
CA-20) After melt-mixing 5 parts by weight, this liquid was
To 31.85 parts by weight of water, 1 part by weight of polyoxyethylene aryl phenyl ether sulfate esterified salt (manufactured by Toho Chemical Industry Co., Ltd., Solpol 7556), 5 parts by weight of propylene glycol, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) ) 0.05 parts by weight, defoamer (Toray
Dow Corning Silicone Co., Ltd., SM5512)
0.1 parts by weight were added to the mixture, and the mixture was mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm.
For 3 minutes to obtain an emulsion part.

Next, 5.35 parts by weight of water, 0.5 parts by weight of polyoxyethylene caster oil ether (SORPOL CA-20, manufactured by Toho Chemical Industry Co., Ltd.), and a polyoxyethylene arylphenyl ether sulfate esterified salt (Toho Chemical Co., Ltd.) Industrial Corporation, Solpol 7556) 1
4 parts by weight of bensulfuron-methyl was added to a solution prepared by mixing and dissolving 0.05 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) and dispersed therein, and the mixture was pulverized by a wet pulverizer. Then, a suspension part was obtained.

90 parts by weight of the emulsion part thus obtained and 10 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

Comparative Example 7 10 parts by weight of pyributicarb
7 parts by weight of pretilachlor, 1 part by weight of dimethamethrin,
Diisopropyl naphthalene (Kureha Chemical Industry Co., Ltd.
KMC-113) 38 parts by weight, sorbitan trioleate (Matsumoto Yushi Seiyaku Co., Ltd., RY-425) 0.6 part by weight and polyoxyethylene (16 mol) tristyryl phenyl ether (Rhone Poulin Co., Ltd., SOP)
(ROPHOR BSU) 1.0 part by weight, and this solution was added to 24.65 parts by weight of water and 0.7 parts by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) on average. Molecular weight 10,000
And a polyoxyethylene / polyoxypropylene block polymer having a polyoxyethylene ratio of about 70% (Newcalgen 70100PB, manufactured by Takemoto Yushi Co., Ltd.)
3 parts by weight, propylene glycol 5 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.0
5 parts by weight and 0.1 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) are added to the mixture, and the mixture is mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm for 3 minutes. Emulsification was performed to obtain an emulsion part.

Next, 2.9 parts by weight of water and 0.1% of polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.) were added.
05 parts by weight, sodium dioctylsulfosuccinate (Airroll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) 0.05
Parts by weight, 0.05 parts by weight of a polyoxyethylene / polyoxypropylene block polymer (Newcalgen 70100PB, manufactured by Takemoto Yushi Co., Ltd.) having an average molecular weight of about 10,000 and a polyoxyethylene ratio of about 70%, an antifoaming agent (Toray)・ SM manufactured by Dow Corning Silicone Co., Ltd.
5512) To a solution obtained by mixing and dissolving 0.05 parts by weight, 2.5 parts by weight of bensulfuron methyl was added and dispersed, and this was pulverized by a wet pulverizer to obtain a suspension part.

Emulsion part 94.
4 parts by weight and 5.6 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 8] 5 parts by weight of pyributicarb, 20 parts by weight of dimethylmonopropylnaphthalene (PAD-1 manufactured by Nikko Petrochemical Co., Ltd.), and sorbitan trioleate (RY-425 manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) 0.5 parts by weight and polyoxyethylene (16 mol) tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd., SOP
After mixing 1.0 part by weight of ROPOR BSU), this solution was mixed with 46.75 parts by weight of water and 0.6 part by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) In a mixture of 6 parts by weight of glycol, 0.05 parts by weight of Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) and 0.1 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) The mixture was added and emulsified with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm for 3 minutes to obtain an emulsion part.

Next, 13.58 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.)
To a solution obtained by mixing and dissolving 0.4 part by weight and 0.02 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512), 6 parts by weight of bensulfuron methyl was added and dispersed, and this was wet-milled. To obtain a suspension part.

80 parts by weight of the thus obtained emulsion part and 20 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 9] 5 parts by weight of dimethamethrin, 5 parts by weight of benfresate, 10 parts by weight of dimethyldipropylnaphthalene (PAD-2, manufactured by Nikko Petrochemical Co., Ltd.)
Sorbitan monooleate (Matsumoto Yushi Seiyaku Co., Ltd.
0.5 parts by weight of Sylvan S-80) and 1.5 of polyoxyethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.)
After mixing by weight, the solution was mixed with 50.85 parts by weight of water, 1 part by weight of sodium dialkyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.), 6 parts by weight of propylene glycol, and Bestside 1000 (Dainippon). Ink Chemical Industry Co., Ltd.) 0.05 parts by weight, defoamer (Toray Dow Corning Silicone Co., Ltd., S
M5512) was added to the mixture obtained by mixing 0.1 part by weight, and 1 part was mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.).
It was emulsified at 0000 rpm for 3 minutes to obtain an emulsion part.

Next, 11.54 parts by weight of water, polyoxyethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.) were added.
24 parts by weight, newcol (Toho Chemical Industry Co., Ltd.)
To a solution prepared by mixing and dissolving 0.2 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) and 8 parts by weight of cyclosulfamuron was dispersed and wet-pulverized. The suspension was crushed by a machine to obtain a suspension portion.

80 parts by weight of the thus obtained emulsion part and 20 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 10] 10 parts by weight of pyributicarb, 7 parts by weight of pretilachlor, 1 part by weight of dimethamethrin, 38 parts by weight of xylene, 0.6 parts by weight of sorbitan trioleate (RY-425, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) and Polyoxyethylene (16 mol) tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd., SOPR
OPHOR BSU) After melt-mixing 1.0 part by weight,
This solution was added to 29.65 parts by weight of water, 0.7 parts by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.), the average molecular weight was about 10,000, and the ratio of polyoxyethylene was about 70%. 1.3 polyoxyethylene / polyoxypropylene block polymer (manufactured by Takemoto Yushi Co., Ltd., Newcalgen 70100PB)
Parts by weight, propylene glycol 5 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.05
Parts by weight, 0.1 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) was added to the mixture, and emulsified at 10,000 rpm for 3 minutes with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.). Then, an emulsion portion was obtained.

Next, 2.9 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.) were added.
05 parts by weight, sodium dioctylsulfosuccinate (Airroll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) 0.05
Parts by weight, 0.05 parts by weight of a polyoxyethylene / polyoxypropylene block polymer (Newcalgen 70100PB, manufactured by Takemoto Yushi Co., Ltd.) having an average molecular weight of about 10,000 and a polyoxyethylene ratio of about 70%, an antifoaming agent (Toray)・ SM manufactured by Dow Corning Silicone Co., Ltd.
5512) To a solution obtained by mixing and dissolving 0.05 parts by weight, 2.5 parts by weight of bensulfuron methyl was added and dispersed, and this was pulverized by a wet pulverizer to obtain a suspension part.

Emulsion part 94.
4 parts by weight and 5.6 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 11] 5 parts by weight of pyributicarb
20 parts by weight of a xylene-toluene / 1- / 2-methylnaphthalene aromatic compound mixture (high-boiling aromatic fraction) (Solvesso 200, manufactured by Exxon Chemical Co., Ltd.), sorbitan trioleate (Matsumoto Yushi Seiyaku Co., Ltd., RY −42
5) 0.5 parts by weight and polyoxyethylene (16 mol)
After melt-mixing 1.0 part by weight of tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd., SOPROPHOR BSU), this solution is mixed with 46.75 parts by weight of water and sodium dioctyl sulfosuccinate (Air Roll manufactured by Toho Chemical Industry Co., Ltd.). CT-1) 0.6 parts by weight, ethylene glycol 6 parts by weight, Bestside 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.05 parts by weight, defoamer (manufactured by Toray Dow Corning Silicone Co., Ltd., SM551)
2) Add 0.1 parts by weight to the mixed mixture, and use a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 r.
The mixture was emulsified at pm for 3 minutes to obtain an emulsion part.

Next, 13.58 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU manufactured by Rhone Poulin Co., Ltd.)
To a solution obtained by mixing and dissolving 0.4 part by weight and 0.02 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512), 6 parts by weight of bensulfuron methyl was added and dispersed, and this was wet-milled. To obtain a suspension part.

80 parts by weight of the thus obtained emulsion part and 20 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 12] 5 parts by weight of dimethamethrin,
5 parts by weight of benfresate, phenylxylylethane S
(SAS-296, manufactured by Nippon Oil Co., Ltd.) 10 parts by weight,
Sorbitan monooleate (Matsumoto Yushi Seiyaku Co., Ltd.
0.5 parts by weight of Sylvan S-80) and 1.5 of polyoxyethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.)
After mixing by weight, the solution was mixed with 50.85 parts by weight of water, 1 part by weight of sodium dialkyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.), 6 parts by weight of propylene glycol, and Bestside 1000 (Dainippon). Ink Chemical Industry Co., Ltd.) 0.05 parts by weight, defoamer (Toray Dow Corning Silicone Co., Ltd., S
M5512) was added to the mixture obtained by mixing 0.1 part by weight, and 1 part was mixed with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.).
The mixture was emulsified at 0000 rpm for 3 minutes to obtain an emulsion part.

Next, 11.54 parts by weight of water, polyoxyethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.) were added.
24 parts by weight, sodium dialkyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.) 0.2
8 parts by weight of cyclosulfamuron were added to a solution prepared by mixing and dissolving 0.02 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) and dispersed by a wet pulverizer. The suspension was crushed to obtain a suspension portion.

80 parts by weight of the emulsion part thus obtained and 20 parts by weight of the suspension part were mixed to obtain a homogeneous suspension emulsion.

Comparative Example 13 10 parts by weight of pyributicarb, 7 parts by weight of pretilachlor, 1 part by weight of dimethamethrin, 38 parts by weight of diisopropylnaphthalene (KMC-113, manufactured by Kureha Chemical Industry Co., Ltd.), sorbitan trioleate (Matsumoto Yushi Pharmaceutical Co., Ltd.) RY-425) 0.
6 parts by weight and polyoxyethylene (16 mol) tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd.
After melt-mixing 1.0 part by weight of OPPROPHOR BSU), this solution was mixed with 24.65 parts by weight of water and 0.7 parts by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.). Molecular weight about 100
A polyoxyethylene / polyoxypropylene block polymer having a polyoxyethylene ratio of about 70% (Newcalgen 70100P manufactured by Takemoto Yushi Co., Ltd.)
B) 1.3 parts by weight, propylene glycol 5 parts by weight, Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) 0.05 parts by weight, defoamer (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) One part by weight was added to the mixed mixture, and emulsified with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm for 3 minutes to obtain an emulsion part.

Next, 2.9 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.) were added.
05 parts by weight, sodium dioctylsulfosuccinate (Airroll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) 0.05
Parts by weight, 0.05 parts by weight of a polyoxyethylene / polyoxypropylene block polymer (Newcalgen 70100PB, manufactured by Takemoto Yushi Co., Ltd.) having an average molecular weight of about 10,000 and a polyoxyethylene ratio of about 70%, an antifoaming agent (Toray)・ SM manufactured by Dow Corning Silicone Co., Ltd.
5512) To a solution obtained by mixing and dissolving 0.05 parts by weight, 2.5 parts by weight of bensulfuron methyl was added and dispersed, and this was pulverized by a wet pulverizer to obtain a suspension part.

Emulsion part thus obtained
4 parts by weight, 5.6 parts by weight of a suspension part, and 5 parts by weight of a vinyl acetate emulsion resin (manufactured by Dainippon Ink and Chemicals, Inc., EC-6620) were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 14] 5 parts by weight of pyributicarb
20 parts by weight of dimethylmonopropylnaphthalene (PAD-1 manufactured by Nikko Petrochemical Co., Ltd.), 0.5 of sorbitan trioleate (RY-425 manufactured by Matsumoto Yushi Seiyaku Co., Ltd.)
Parts by weight and polyoxyethylene (16 mol) tristyryl phenyl ether (manufactured by Rhone Poulin Co., Ltd., SO
PROPHOR BSU) was melt-mixed in an amount of 1.0 part by weight, and this solution was added to 26.75 parts by weight of water and 0.6 part by weight of sodium dioctyl sulfosuccinate (Air Roll CT-1 manufactured by Toho Chemical Industry Co., Ltd.) In a mixture of 6 parts by weight of glycol, 0.05 parts by weight of Best Side 1000 (manufactured by Dainippon Ink and Chemicals, Inc.) and 0.1 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) The mixture was added and emulsified with a TK homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) at 10,000 rpm for 3 minutes to obtain an emulsion part.

Next, 13.58 parts by weight of water and polyoxyethylene (16 mol) tristyryl phenyl ether (SOPROPHOR BSU, manufactured by Rhone Poulin Co., Ltd.)
To a solution obtained by mixing and dissolving 0.4 part by weight and 0.02 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512), 6 parts by weight of bensulfuron methyl was added and dispersed, and this was wet-milled. To obtain a suspension part.

60 parts by weight of the emulsion part thus obtained, 20 parts by weight of the suspension part, and 20 parts by weight of sodium polyacrylate (Poise 530, manufactured by Kao Corporation) were mixed to obtain a homogeneous suspension emulsion.

[Comparative Example 15] 5 parts by weight of dimethamethrin,
5 parts by weight of benfresate, 10 parts by weight of dimethyldipropylnaphthalene (PAD-2, manufactured by Nikko Petrochemical Co., Ltd.), 0.5 parts by weight of sorbitan monooleate (Sylvan S-80, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) and polyoxy Ethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.)
After melt-mixing 1.5 parts by weight, this liquid was added to 40.8 parts of water.
5 parts by weight of 1 part by weight of sodium dialkyl sulfosuccinate (Newcol 290M manufactured by Nippon Emulsifier Co., Ltd.), 6 parts by weight of propylene glycol, and Bestside 10
00 (manufactured by Dainippon Ink and Chemicals, Inc.) and 0.1 part by weight of an antifoaming agent (manufactured by Toray Dow Corning Silicone Co., Ltd., SM5512) were added to a mixture, and the mixture was mixed with a TK homomixer ( The mixture was emulsified at 10000 rpm for 3 minutes using a special machine manufactured by Tokushu Kika Kogyo Co., Ltd. to obtain an emulsion part.

Then, 11.54 parts by weight of water, polyoxyethylene (14 mol) tristyryl phenyl ether (SOROPOL T-15, manufactured by Toho Chemical Industry Co., Ltd.) were added.
24 parts by weight, sodium dialkyl sulfosuccinate (Newcol 290M, manufactured by Nippon Emulsifier Co., Ltd.) 0.2
8 parts by weight of cyclosulfamuron were added to a solution prepared by mixing and dissolving 0.02 parts by weight of an antifoaming agent (SM5512, manufactured by Toray Dow Corning Silicone Co., Ltd.) and dispersed by a wet pulverizer. The suspension was crushed to obtain a suspension portion.

70 parts by weight of the emulsion part thus obtained, 20 parts by weight of the suspension part, and 10 parts by weight of a polyacrylic acid resin (Watazol S753, manufactured by Dainippon Ink and Chemicals, Inc.) were mixed, and a homogeneous suspension was prepared. An emulsion was obtained.

Test Example 1 Adhesion Damage Test A pot made of scraping paddy soil was packed in a resin pot having an area of 60 cm ² , and rice (leaf, Koshihikari) at the seedling stage was transplanted.
m. The next day, after covering the pot so that the reagent agent did not fall into the flooded water, the second leaf of the rice was tilted at 45 degrees from the ground surface with the reagent agent of Examples 1 to 6 and Comparative Examples 1 to 15 1 drop (about 0.01 ml) from a height of 2 cm using a Pasteur pipette, and one week later, the state of rice growth was evaluated according to the following five grades. The test was repeated twice for the attachment part at two locations, the leaf tip and the leaf base. Table 1 shows the results.

Test Example 2 Adhesion Damage Test (Abuse Test) A pad made of scraped rice paddy was packed in a resin pot having an area of 60 cm ² , and rice (leaves, Koshihikari) at the seedling stage was transplanted.
m. As an abuse test, 3.5 ml of the reagents of Examples 1 to 6 and Comparative Examples 1 to 15 were sprayed directly on the rice at the seedling stage using a Pasteur pipette. It was evaluated on a scale. The abuse test was also performed in duplicate. Table 2 shows the results.

[Evaluation Criteria of Rice Growth Condition]-: No influence on rice growth. ±: There is a slight effect on rice growth. +: The growth of rice is affected. ++: Significant effect on rice growth. +++: Significantly affects the growth of rice and completely dies.

As shown in Table 1, the suspoemulsions of Examples 1 to 6 did not cause any phytotoxicity even when attached to rice.
On the other hand, in Comparative Examples 4 to 15, all were completely killed when the drug attachment site was at the leaf blade base, and even when the drug was attached to the leaf blade tip, Comparative Examples 4 to 6 were completely killed, and other large and small growth effects were observed. . Also, as shown in Table 2, in the abuse test of spraying the medicine, almost no phytotoxicity was observed in the suspoemulsions of Examples 1 to 6, whereas no phytotoxicity was observed in the leaf blade adhesion test. Comparative Example 1 including Comparative Examples 1 to 3
~ 15 had an effect on rice growth.

[0124]

[Table 1]

[0125]

[Table 2]

(Test Example 3) Measurement of Storage Stability The prepared suspoemulsion was placed in a 500 ml glass bottle, and each suspoemulsion was prepared immediately after preparation and when stored in a thermostat at 40 ° C. for 3 months. The average particle size (μm) of the emulsion was measured. The results are shown in Table 3.

Similarly, at -5 ° C. for 3 days, at room temperature for 1 day,
The average particle size (μm) of the suspoemulsion stored at rest for 3 months by repeating the cycle at 0 ° C. for 3 days
Was measured. The results are shown in Table 4.

The measurement was performed using a particle size distribution measuring device (LS2
30: manufactured by Coulter Co., Ltd.). In addition, the presence or absence of formation of aggregates was confirmed using an optical microscope (× 400). If the average particle size increases with time, the emulsion may be broken, and the emulsion and the suspension may be aggregated, and there is a problem in terms of storage stability in terms of practicability. Further, the presence of aggregates can be seen by visually observing the state of the preparation using an optical microscope.

(Test Example 4) Chemical Stability Each of the prepared suspoemulsions was placed in a 500 ml glass bottle, immediately after the preparation and when left standing in a thermostat at 40 ° C. for 3 months. Measuring the active ingredient concentration of the sulfonylurea compound (SU) in the preparation,
The residual ratio (%) was examined. The results are shown in Table 3.

Similarly, for 3 days at -5 ° C., 1 day at room temperature,
The cycle of 0 ° C. for 3 days was repeated as one cycle, and the active ingredient concentration of the sulfonylurea compound (SU) in the suspoemulsion stored for 3 months was measured, and the residual ratio (%) was examined. The results are shown in Table 4.

The concentration was measured using high performance liquid chromatography (Gulliver series: manufactured by JASCO Corporation). The measured value was calculated as a ratio (%) to the initial value, with the initial value at the start of the storage test as 100. That is, if it is 100%, no decomposition has occurred, and the lower the ratio (%), the more the decomposition is progressing. The lower this value is, the more unsuitable as a practical suspoemulsion agent.

(Test Example 5) Viscosity Measurement After the glass bottle of the suspoemulsion agent used in Test Example 1 was inverted 10 times, the viscosity was measured. The results are shown in Table 4. A B-type viscometer (BM type, manufactured by Tokyo Keiki Co., Ltd.) was used for the measurement, and the measurement conditions were as follows.
3, rotor speed 60 rpm, formulation temperature 20 ± 0.4
C. The viscosity is better as the change with time is smaller.

(Test Example 6) Measurement of dispersibility in water 400 ml of water was placed in a 500 ml beaker, and each of the suspoemulsions immediately after preparation and when left standing in a thermostat at 40 ° C for 3 months was pipetted. , 5 drops (about 0.05 ml) were added to observe the diffusion state, and evaluation was performed in the following four steps. The results are shown in Table 3.

Similarly, at -5 ° C. for 3 days, at room temperature for 1 day,
The cycle of 0 ° C. for 3 days was repeated as one cycle, and the diffusion state of the suspoemulsion stored for 3 months was observed. The results are shown in Table 4. The better the diffusion state, the better.

[Evaluation Criteria of Diffusion State] A: Very good diffusion state. The drug is dispersed so as to diffuse on the surface of the water. ：: Good diffusion state. The drug spreads on the surface of the water and drops in the form of droplets while partially diffusing in the water, but disperses by the time it reaches the bottom. Δ: The diffusion state is slightly poor. Most of the drug falls to the bottom in the form of droplets, and is dispersed by stirring the beaker with a stick or the like. X: The diffusion state is bad. The drug falls to the bottom in the form of droplets and does not disperse easily even if the beaker is agitated with a stick or the like.

[0136]

[Table 3]

In Tables 3 and 4, "SU" means a sulfonylurea compound (cyclosulfamuron, imazosulfuron, bensulfuron-methyl, etc.).

[0138]

[Table 4]

* Cycle: 3 days at -5 ° C, 1 day at room temperature and 4 days
The cycle was repeated at 0 ° C. for 3 days as one cycle for 3 months.

From the results shown in Tables 1 to 4, the suspoemulsions of the Examples are much less susceptible to adherence than those of the Comparative Examples, have no change over time in particle diameter and viscosity, and are chemically stable. I found it.

Further, from the results shown in Tables 1 to 4, Comparative Examples 1 to 3 have good storage stability such as physical stability and chemical stability, but the abuse spraying method in the test for adhesion phytotoxicity. It was found that when it was carried out, it affected the growth of rice. Comparative Examples 4 to 6 showed strong adhesion damage and poor storage stability such as physical stability and chemical stability. Comparative Examples 10 to 12
Had a strong chemical attack and poor chemical stability. Comparative Examples 7 to 9 in which no resin was added and Comparative Examples 13 to 15 in which a resin other than the aromatic resin was added also exhibited strong adhesion damage.

From the results shown in Table 4, it was found that Examples 1 to 6 were chemically stable with no change in particle diameter and viscosity over time even at low (-5 ° C) and high (40 ° C) repetition.

(Test Example 7) Biological effect test A paddy field after scratching and transplanting rice was used to measure the length of 30
m, a section having a width of 4 m was prepared. Seven days after the preparation of the plots, resin rings having a diameter of 20 cm were buried at a total of 7 places every 5 m from the end of the plot, and seeds of Nobie, Firefly, and annual broadleaf were sown.
Seven days later (at the time of germination of scallop, firefly, and annual broadleaf), the condition of flooding was about 5 cm, the movement of water inside and outside the plot was stopped, and 30 g of each of the test agents of Example 3 was treated from both ends with a width of 30 m. did. After the treatment, the movement of water was stopped for 3 days, and thereafter, the field was managed while maintaining the flooding depth. Investigation was performed 29 days after the treatment, and the evaluation was made according to the following five grades. The results are shown in Table 5.

[Evaluation Criteria for Plant Height Inhibition] 0: No plant height suppression (same as in the non-treated section) 1: Plant height suppression of 20% 2: Plant height suppression of 40% 3: Plant height suppression of 60% 4: Plant height suppression of 80% 5 : Complete withering

[0145]

[Table 5]

The results shown in Tables 1 and 5 show that the suspoemulsion of Example 3 did not cause any phytotoxicity even when it adhered to rice, and that it was excellent in herbicidal effect even when sprayed directly on paddy fields. The practicality of this method of use has proven to be high.

(Test Example 8) Measurement of resilience to rice. The seedling rice (leaves, Koshihikari) was subjected to the reagents of Examples 1 to 6 and Comparative Examples 1 to 15 at an angle of 45 degrees from the ground surface. Five drops (about 0.01 ml) were dropped on the second leaf from a height of 2 cm using a Pasteur pipette, and the repellency of the drug on rice was measured. The results are shown in Table 6.

[Evaluation criteria of repellency] A: All five drops are repelled by the leaf blade and do not adhere. ：: 3 to 4 drops or more out of 5 drops are repelled but adhere. Δ: One to two or more of the five drops are repelled but adhere. ×: All five drops adhere to the leaf blade.

(Test Example 9) Measurement of Surface Tension After the glass bottle of the suspoemulsion agent used in Test Example 1 was repeatedly inverted ten times, the surface tension was measured. The results are shown in Table 6. For the measurement, use a surface tensiometer (DIGI
-O-MATIC ESB-IV, KYOWASCIE
NTIFIC CO. Was performed at a preparation temperature of 25 ± 1.0 ° C. The higher the surface tension, the better.

[0150]

[Table 6]

As shown in Table 6, the suspoemulsions of Examples 1 to 6 have high surface tension and high resilience to rice. For this reason, it is hard to adhere to rice, and it is difficult to exhibit chemical damage. On the other hand, Comparative Examples 1 to 15 have a low surface tension, easily adhere to rice, and are likely to develop phytotoxicity under conditions in which a large amount of a chemical is applied to rice.

[0152]

Industrial Applicability According to the present invention, no phytotoxicity occurs even if it adheres to agricultural products, the decomposition of herbicidally active ingredients having high hydrolyzability is effectively suppressed, and even after long-term storage at low and high temperatures, An agricultural and horticultural agricultural chemical composition in the form of a suspoemulsion having excellent storage stability can be provided.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 47/18 101 A01N 47/18 101A 47/36 101 47/36 101A (72) Inventor Takashi Sato Chiba (72) Inventor Masaki Akiyama 2385 Toda, Atsugi-shi, Kanagawa Hokuko Chemical Atsugi Ryo (72) Inventor Mitsuyasu Okamura 1432 Ishida, Isehara-shi, Kanagawa 1F term (reference) 4H011 AA01 AB02 AC01 BA01 BB06 BB08 BB09 BB13 BB14 BC03 BC06 BC16 BC19 DA14 DA16 DD02 DE14 DF04 DH02 DH03

Claims (13)

[Claims] (1) The solubility in water is 10 at 25 ° C.
A poorly water-soluble pesticidal active ingredient (a) having a solubility of 0 ppm or less and a melting point of 68 ° C. or less;
At 100 ° C. or less, fatty acid ester solvent,
One or more poorly water-soluble solvents (b) selected from the group consisting of dibasic acid ester solvents and higher alcohol solvents;
(3) a poorly water-soluble pesticide drug substance (c) having a solubility in water of 100 ppm or less at 25 ° C. and a melting point of 69 ° C. or more, (4) a protective colloid agent (d), and (5) an aromatic compound A pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion, comprising a vinyl resin (e) and (6) water (f). 2. The poorly water-soluble pesticide drug substance (a) is used in an amount of 0.1 to 30.
Parts by weight, 0.1 to 50 parts by weight of the poorly water-soluble solvent (b), 0.1 to 30 parts by weight of the poorly water-soluble pesticide drug substance (c), 0.5 to 15 parts by weight of the protective colloid agent (d), 0.5 to 20 parts by weight of an aromatic vinyl resin (e) and 1 part of water (f)
The pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion according to claim 1, characterized in that it contains -98.7 parts by weight. 3. The agricultural and horticultural pesticide composition according to claim 1, wherein the protective colloid agent (d) is polyvinyl alcohol. 4. The agricultural and horticultural agricultural chemical composition according to any one of claims 1 to 3, wherein the aromatic vinyl resin (e) is a styrene resin. 5. A pesticidal composition for agricultural and horticultural use in the form of a suspo emulsion according to claim 1, wherein the poorly water-soluble solvent (b) is a fatty acid ester-based solvent. 6. The agricultural chemical and horticultural agricultural chemical composition according to claim 1, wherein the poorly water-soluble solvent (b) is soybean oil. 7. The sparingly water-soluble pesticide drug substance (a) has a melting point of 68 ° C.
2. The following poorly water-soluble herbicide:
An agricultural and horticultural agricultural chemical composition in the form of a suspoemulsion according to any one of claims 6 to 6. 8. The sparingly water-soluble pesticide drug substance (c) has a melting point of 69 ° C.
2. The herbicide having poor water solubility as described above.
An agricultural and horticultural pesticide composition in the form of a suspoemulsion according to any one of claims 7 to 7. 9. A pesticide composition for agricultural and horticultural use in the form of a suspoemulsion according to any one of claims 1 to 8, further comprising a crystal precipitation inhibitor. 10. A pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion according to claim 1, further comprising a surfactant. 11. A surface tension at 25 ° C. of 37 mN /
11. The pesticidal composition for agricultural and horticultural use in the form of a suspoemulsion according to any one of claims 1 to 10, wherein the composition is not less than m. 12. The suspoemulsion having an average particle size of 0.1.
The agricultural and horticultural pesticide composition in the form of a suspoemulsion according to any one of claims 1 to 11, wherein the composition is 1 to 15 µm. 13. A method for using the agricultural chemical and horticultural agricultural chemical composition according to any one of claims 1 to 12, which is sprayed on a paddy field.