JPH0572885B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a novel stabilized agrochemical composition, a method for its preparation and its use. It is disclosed in JP-A No. 2003-11101 that a mixture containing a urea compound including 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea and an organic phosphorus compound as active ingredients is useful as a fungicide for agricultural and horticultural purposes. It is described in No. 54-23128 and Japanese Patent Application Laid-open No. 160707/1983. According to this publication, it is stated that these mixtures are more effective synergistically as agricultural and horticultural fungicides by mixing them than by using a single active ingredient.
There is no mention of formulation stability. However, 1-(4-chlorobenzyl)-1
- When cyclopentyl-3-phenylurea and an organic phosphorus compound are mixed together to form a formulation, the active ingredients act together and mutually promote decomposition, resulting in an extreme degree of decomposition compared to the case of a single formulation of each. The applicant has revealed that it is virtually impossible to store for a long time due to the large size, and a solution to the problem of stabilization is desired. The present invention provides a stabilized mixture containing 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea and an organic phosphorus compound as active ingredients, which is characterized in that anhydrite is added thereto. The present invention provides an agrochemical composition. The present invention also provides a stabilized agrochemical composition characterized in that epoxidized linseed oil and/or epoxidized soybean oil is further added together with the above-mentioned type of anhydrite. Furthermore, the present invention provides 1-(4-chlorobenzyl)-1-
A method for producing an agrochemical composition stabilized by adding anhydrite to a mixture of cyclopentyl-3-phenylurea and an organophosphorus compound is provided. The present invention also provides a method for producing an agrochemical composition stabilized by adding epoxidized linseed oil and/or epoxidized soybean oil together with the above-mentioned type of anhydrite. Finally, it has been found that the stabilized agrochemical compositions according to the invention can be used for various purposes in agriculture and horticulture. Surprisingly, the present inventors have found that the agrochemical composition according to the present invention prepared by adding the above-mentioned type anhydrite stabilizes the mixed active ingredient of the agrochemical, and does not have any adverse effect on the physical properties. The invention has been completed. Furthermore, the present invention has been completed by discovering that the mixed active ingredients can be further stabilized by adding epoxidized linseed oil and/or epoxidized soybean oil together with the above-mentioned type anhydrite. Also, gypsum, such as hemihydrate gypsum (calcined gypsum,
Even if CaSO ₄ 1/2H ₂ O), type anhydrite, or type anhydrite is added, the decomposition is significant, and by selecting and using type anhydrite, the above-mentioned excellent stabilizing effect can be achieved. Ta. Therefore, the stabilized agrochemical composition according to the present invention provides an excellent technology in the field of agrochemical production, and also provides an extremely outstanding technological inventiveness in terms of industrial utility. be. 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea (pencyclobenzyl), a component of the stabilized agrochemical composition according to the present invention.
pencycuron) is expressed by the following formula.

The organophosphorus compound, which is one of the components of the stabilized agrochemical composition according to the present invention, means an active compound that can be used in the field of plant protection.
These are preferably insecticides, fungicides and the like.
Examples of active compounds of this type include: However, it is not limited only to these. O-ethyl S,S-diphenyl phosphorodithioate (edifenphos), S
-benzyl O,O-di-isopropyl phosphorothioate (IBP), O,O-dimethyl O-
4-Methylthio-m-tolyl phosphorothioate (fenthion), O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate (fenitrothion), O,
O-dimethyl O-3,5,6-trichloro-2
-pyridyl phosphorothioate (chlorpyrifos-methyl), S-1,
2bis(ethoxycarbonyl)ethyl O,O-
Dimethyl phosphorodithioate, (marathon)
malathion), S-α-ethoxycarbonylbenzyl O,O-dimethyl phosphorodithioate (phenthoate), dimethyl 2,
2,2-trichloro-1-hydroxyethyl phosphonate (trichlorphon). The anhydrite used in the stabilized agrochemical composition according to the present invention is type anhydrite. The above-mentioned type anhydrite used in the present invention stabilizes the mixed active ingredient of the agricultural chemical of the present invention, and even when formulated into a formulation, it exerts its effect without affecting the physical properties in any way. Therefore, by adding type anhydrite and optionally epoxidized linseed oil and/or epoxidized soybean oil to the mixed active ingredients, a solid diluent, Alternatively, it can be manufactured into various formulations using a carrier and, in some cases, a surfactant. Solid diluents include vegetable powders: mineral powders: clay minerals (clays) [e.g., kaolinite group, montmorillonite group, attapulgite group, etc.], talc, pyrophyllite, mica. , calcite, vermiculite (vermiculite),
Examples include dolomite, apatite, diatomaceous earth, synthetic inorganic materials (eg, highly dispersed silicic acid, synthetic alumina, etc.), synthetic resins (eg, phenolic resin, urea resin, vinyl chloride, etc.), and the like. Examples of surfactants include anionic surfactants: alkyl sulfate esters [for example, sodium lauryl sulfate, etc.], arylsulfonic acids [for example, alkylaryl sulfonate, sodium alkylnaphthalene sulfonate, etc.], polycarbohydrates, etc. Nitsuacid salts [e.g., Na salt of copolymer of maleic acid and olefin, etc.], nonionic surfactants: polyoxyethylene glycol ethers [e.g., polyoxyethylene alkylaryl ether, etc.], polyoxyethylene Examples include glycol esters (for example, polyoxyethylene fatty acid ester, etc.), polyhydric alcohol esters (for example, polyoxyethylene sorbitan monolaurate, etc.). Sticking agents can also be used in the formulation and can include carboxymethylcellulose and natural and synthetic polymers such as gum arabic, polyvinyl alcohol and polyvinyl acetate. Coloring agents may also be used, including inorganic pigments such as iron oxide, titanium oxide and Prussian blue, and alizarin dyes,
Organic dyes such as azo dyes or metal phthalocyanine dyes, and also iron, manganese, boron,
Mention may be made of trace elements such as copper, cobalt, molybdenum, their salts of zinc. As mentioned above, the stabilized agrochemical composition according to the invention can be in the form of conventional powders, wettable powders, etc., in particular, for example, powders. The formulation generally contains 0.1 to 90% of the active ingredient.
It can be contained in an amount of 0.5 to 80% by weight. The amount of type anhydrite used in the stabilized agrochemical composition according to the invention is usually 4 to 95% by weight, preferably 6 to 50% by weight in the formulation. More specifically, the amount of type anhydrite is 4 to 50% by weight, preferably 6 to 30% by weight in powders, and 10 to 95% by weight, preferably 10 to 50% by weight in wettable powders. Further, the amount of epoxidized linseed oil and epoxidized soybean oil to be added is 0.1 to 30% by weight, preferably 0.5 to 10% by weight. The agrochemically active compound of the present invention may be added to other known active compounds such as fungicides (fungicides, bactericides), insecticides, acaricides, herbicides, bird repellents, growth regulators, fertilizers and/or Alternatively, a soil improver can also be used together.
Here, the above-mentioned insecticides include, for example, organic phosphorus agents, carbamate agents, carboxylate agents,
Examples include chlorinated hydrocarbon drugs and insecticidal substances produced by microorganisms. Next, the content of the present invention will be specifically explained with reference to Examples, but the present invention should not be limited thereto. Example 1 (Wettable powder) Edifuenphos 15 parts by weight Pencykron 8 parts by weight Type anhydrite 30 parts by weight Na salt of lauryl sulfate 5 parts by weight Mixture of diatomaceous earth and kaolin (1:5)
Grind and mix 42 parts by weight to make a wettable powder. Example 2 (Wettable powders) Edifuenphos 15 parts by weight Pencykron 8 parts by weight Type anhydrite 30 parts by weight Epoxidized linseed oil 8 parts by weight Sodium salt of lauryl sulfate 5 parts by weight Mixture of diatomaceous earth and kaolin (1:5)
Grind and mix 34 parts by weight to make a wettable powder. Example 3 (Powder) 2.5 parts by weight of Edifuenphos, 1.5 parts by weight of Pencykron, 20.0 parts by weight of type anhydrite, 0.1 part by weight of PAP, and 75.9 parts by weight of clay are ground and mixed to obtain a powder. Example 4 (Powder) Edifuenphos 2.5 parts Pensicuron 1.5 parts Anhydrite type 20.0 parts Epoxidized linseed oil 1.5 parts PAP 0.2 parts Clay 74.3 parts by weight were ground and mixed to form a powder. Example 5 (Powder) Edifuenphos 1.5 parts by weight Pensicurone 2.0 parts by weight Type anhydrite 20.0 parts by weight Epoxidized soybean oil 1.0 parts by weight PAP 0.2 parts by weight Clay 75.3 parts by weight are ground and mixed to form a powder. Example 6 (Powder) Fenthion 2.0 parts by weight Pensicurone 1.5 parts by weight Type anhydrite 10.0 parts by weight PAP 0.1 part by weight Clay 86.4 parts by weight were ground and mixed to obtain a powder. Example 7 (Powder) Fenthion 2.0 parts by weight Pensicurone 1.5 parts by weight Type anhydrite 10.0 parts by weight Epoxidized soybean oil 1.5 parts by weight PAP 0.1 part by weight Clay 84.9 parts by weight are ground and mixed to form a powder. Example 8 (Powder) Fenitrothion 2.0 parts by weight Pensicurone 1.5 parts by weight Type anhydrite 20.0 parts by weight PAP 0.1 part by weight Clay 86.4 parts by weight were ground and mixed to obtain a powder. Example 9 (Powder) Marathon 3.0 parts by weight Pensicuron 1.5 parts by weight Type anhydrite 10.0 parts by weight Epoxidized linseed oil 2.0 parts by weight PAP 0.1 part by weight Clay 83.4 parts by weight were ground and mixed to form a powder. Test Example 1 Stabilization test of active ingredients Edifuenphos 2.5 parts by weight Pencicron 1.5 parts by weight Carplex #80 3.0 parts by weight Type anhydrite 10-20 parts by weight Epoxidized soybean oil or epoxidized linseed oil
0 or 1.5 parts by weight PAP 0.1 parts by weight Mix the above amounts of active ingredients and adjuvants, add the desired amount of type anhydrite and epoxidized soybean oil or epoxidized linseed oil, and leave the rest to make a total amount of 100 parts by weight. Add a certain amount of clay and grind and mix to prepare a powder. The product was stored in a glass bottle in a dark place at 40°C for 30 and 60 days, and its decomposition rate was investigated.
The results are shown in Table 1.

[Table] Test Example 2 Stabilization test of active ingredients Edifuenphos 2.0 parts by weight Pencyclone 1.0 parts by weight Carplex #80 3.0 parts by weight Type anhydrite 15 parts by weight Epoxidized soybean oil or epoxidized linseed oil
0.5 parts by weight PAP 0.1 parts by weight Mix the above amounts of active ingredients and adjuvants, add the desired amount of type anhydrite and epoxidized soybean oil or epoxidized linseed oil, and reduce the remaining amount to 100 parts by weight. Add clay, grind and mix to prepare a powder. The product was stored in a glass bottle in a dark place at 40°C for 30 and 60 days, and its decomposition rate was investigated.
The results are shown in Table 2.

[Table] Test Example 3 Stabilization test of active ingredients Fenthion 2.0 parts by weight Pensicuron 1.5 parts by weight Carplex #80 3.0 parts by weight Type anhydrite 10.0 parts by weight Epoxidized soybean oil 0 or 1.5 parts by weight PAP 0.1 part by weight Above amounts of active ingredients and adjuvants, add the desired amount of molded anhydrite and epoxidized soybean oil,
Add the remaining amount of clay so that the total amount is 100 parts by weight, and grind and mix to prepare a powder. Put it in a glass bottle and store it in a dark place at 40℃ for 30 and 60 days.
The decomposition rate was investigated. The results are shown in Table 3.

[Table] Test Example 4 Stabilization test of active ingredients Fuentate 2.0 parts by weight Pencykron 1.5 parts by weight Carplex #80 3.0 parts by weight Type anhydrite 20.0 parts by weight Epoxidized linseed oil 0 or 3.0 parts by weight PAP 0.1 parts by weight Above amounts of active ingredients and adjuvants, add desired amounts of molded anhydrite and epoxidized linseed oil, add the remaining amount of clay to make a total of 100 parts by weight, and grind and mix to prepare a powder. The product was stored in a glass bottle in a dark place at 40°C for 30 and 60 days, and its decomposition rate was investigated. The results are shown in Table 4.

【table】

Claims (1)

[Claims] 1. A mixture containing 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea and an organic phosphorus compound as active ingredients, characterized in that type anhydrite is added. Stabilized pesticide composition. 2 In a mixture containing 1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea and an organic phosphorus compound as active ingredients, type anhydrite and epoxidized linseed oil and/or epoxidized soybean oil are added. A stabilized agrochemical composition characterized by: