JP2516015B2 - Agro-horticultural wettable powder composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to zinc ethylene bisdithiocarbamate (hereinafter abbreviated as Zineb), manganese ethylene bisdithiocarbamate (hereinafter abbreviated as Manneb), zinc ion coordinated Manganese. Ethylene bisdithiocarbamate (hereinafter abbreviated as Manzeb), bisdimethyldithiocarbamoyl zinc ethylene bisdithiocarbamate (hereinafter abbreviated as polycarbamate) or zinc propylene bisdithiocarbamate (hereinafter abbreviated as propineb)
The present invention relates to a wettable powder composition for agricultural and horticultural use containing as an active ingredient.

[Conventional technology]

Zineb, manneb, manzeb, polycarbamate or probineb is a compound which is highly effective against a wide range of diseases such as fruit trees and flowers and has high safety, and is used as a useful agricultural and horticultural fungicide.

In addition, as a method for controlling pests in recent years, for the purpose of improving its efficiency, one or more other fungicides, insecticides, spreading agents, or other chemicals such as fertilizers are simultaneously diluted with water and adjusted. , Often sprayed using a sprayer.

In such a case, due to the occurrence of aggregation in the mixed diluted preparation liquid, the homogeneity of the diluted liquid is impaired due to the sedimentation or floating of the aggregates, which is preferable against the original purpose such as chemical damage and reduction of control effect. The result is no, and the agglomerates can also clog the sprayer nozzles, making spraying impossible.

For the purpose of preventing aggregation during such mixing, a surfactant is generally used, for example, lignin sulfonate, alkylbenzene sulfonate, alkylnaphthalene sulfonate, dialkyl sulfosuccinate, poly Anionic surfactants such as oxyethylene alkylaryl sulfates, polyoxyethylene alkylaryl ether sulfates, etc., and nonionics such as polyoxyethylene alkyl ethers, polyoxyethylene alkylaryl ethers, polyoxyethylene resin acid esters, etc. In many cases, one or more selected from surfactants is blended in the formulation to take measures to prevent aggregation when mixed with other drugs.

[Problems to be solved by the invention]

By the way, the above-mentioned Zineb, Mannebu, Manzeb, agricultural and horticultural wettable powder composition containing polycarbamate or propineb as an active ingredient, when prepared by diluting with water during spraying, other agricultural and horticultural wettable powder, emulsion, fixing agent or fertilizer. By mixing with other chemicals (including fertilizer, the same below),
Since it has a drawback that aggregation is likely to occur, it is often an obstacle to practical use. For example, ethyl-N-
(Diethyldithiophosphorylacetyl) -N-methylcarbamate (Pestane) emulsion, bis (chlorophenyl)
Trichloroethanol (Kelsen) wettable powder, O, O-dimethyl-S- [5-methoxy-1,3,4thiazole 2 (3H)
In many cases, such as drugs containing onyl- (3) -methyl] dithiophosphate (spladide) emulsion as an active ingredient, and many useful agricultural and horticultural drugs and fertilizers, etc. The occurrence of agglomeration is observed. And even with the use of surfactants etc. by conventional technology,
Although the reason for the occurrence of aggregation when mixed with other drugs is unknown, it could not be constantly prevented, and a formulation which was sufficiently satisfactory for use could not be obtained. The present invention has been made in view of such a current situation, and its object is to improve the compatibility with other drugs in an agricultural / horticultural wettable powder composition containing the aforementioned agricultural / horticultural fungicide as an active ingredient. An object of the present invention is to provide a preparation which prevents the occurrence of aggregation and has good physical properties desired in use.

[Means for solving problems]

The present inventors aim to ameliorate the above-mentioned conventional problems, and as a result of diversified examination of a large number of compounds for anti-agglomeration agents, the above-mentioned agricultural and horticultural fungicides are contained as active ingredients. In order to improve the compatibility of the agricultural and horticultural wettable powder composition with other drugs, polyvinylpyrrolidone (hereinafter
(Abbreviated as PVP) and / or blending a polyoxyalkylenealkylamine-based surfactant having a molecular weight of 5000 or more, a particularly high effect can be obtained, which is extremely effective in solving the above-mentioned problems. I found that there is.

Outline of the present invention, the agricultural and horticultural wettable powder composition of the present invention is zinc ethylene bisdithiocarbamate, zinc manganese ethylene bisdithiocarbamate, zinc ion coordination manganese ethylene bisdithiocarbamate,
At least one drug selected from the group consisting of bisdimethyldithiocarbamoyl zinc ethylene bisdithiocarbamate or zinc propylene bisdithiocarbamate
It is characterized by containing seeds as an active ingredient, and blending polyvinylpyrrolidone 0.2-0.4% by weight and / or polyoxyalkylenealkylamine-based surfactant 0.5-3.0% by weight having a molecular weight of 5000 or more per composition as an anti-agglomeration agent. And

If the added amount of PVP is less than 0.2% by weight, the effect of reducing aggregation is small, and if it is 0.2% by weight or more, the homogeneity of the diluent is guaranteed.
Even if it exceeds 0.4% by weight, it is effective, but this amount is sufficient under normal spraying conditions. Similarly, the addition amount of polyoxyalkylene alkyl amine-based surfactant with a molecular weight of 5000 or more is
If it is less than 0.5% by weight, the effect of reducing aggregation is small, and 3.0% by weight.
The objective can be achieved sufficiently, and at the same time, the problem of unexpected drug damage is avoided.

The polyoxyalkylenealkylamine-based surfactant having a molecular weight of 5000 or more used in the present invention is a polyoxyethylenepolyoxypropylene-added diamine-based tetranick-type nonionic surfactant and is represented by the following general formula.

However, in the formula, an integer of n1 to n4: 10 to 100, an integer of m1 to m4: 5 to 100, R: an alkyl group having 2 to 20 carbon atoms is shown.

The agricultural and horticultural wettable powder composition according to the present invention can be produced by mixing and pulverizing the above-mentioned agricultural and horticultural germicide and the above-mentioned miscibility improving agent by a usual method. In this case, upon mixing, if necessary, for example, after adding a surfactant, a bulking agent, etc. which are commonly used in the production of agricultural / horticultural wettable powder compositions, a uniform production method of the agricultural / horticultural wettable powder composition is used. It is obtained by mixing and pulverizing.

Examples of the surfactant include nonionic ones such as polyoxyethylene alkyl ether, polyoxyethylene alkylaryl ether, polyoxyethylene resin acid ester and polyoxyethylene sorbitan fatty acid ester, and fatty acid (soap), alkyl sulfate ester. Salts, dialkyl sulfosuccinates, alkyl phosphate ester salts, naphthalene sulfonate formalin condensates, polyoxyethylene alkyl sulfate ester salts, polyoxyethylene alkyl aryl ether sulfates, anionic salts such as lignin sulfonate, etc. To be

In addition, as the extender, clay, chyle soil, talc,
Fine mineral powders such as calcium carbonate and white carbon, salts such as ammonium sulfate and mirabilite, and organic substances such as sugars, cellulose powder and urea can be used.

The agricultural and horticultural wettable powder composition of the present invention, as long as it does not impair the object of the present invention, if necessary, other fungicides, insecticides, spreading agents, sticking agents, plant growth regulators, synergists, Other agents such as attractants, repellents and fertilizers can be mixed and mixed, but they can be dissolved and mixed at the same time as these preparations such as wettable powder and emulsion.

Specific examples of other agents that can be mixed or mixed by simultaneous dissolution include, for example, organophosphorus fungicides, organochlorine fungicides, benzimidazole fungicides, copper fungicides, organosulfur fungicides, and dithio. Carbamate fungicides, antibiotics, natural insecticides, pyrethroid insecticides, organophosphorus insecticides, organochlorine insecticides, carbamate insecticides, urea compound fertilizers and the like can be mentioned.

When the wettable powder composition of the present invention is mixed with another drug,
The wettable powder composition of the present invention and other agents are diluted with water at the same time and then sprayed with a sprayer or the like for use.

[Action]

Agro-horticultural wettable powder composition according to the present invention shown above,
When other drugs are mixed, or dissolved and mixed at the same time with other drugs, aggregation is prevented when mixed with other drugs, which has been a problem in conventional formulation technology, and hydration, Good physical properties desired in use, such as suspension, fineness, and dispersibility in water, can be obtained.

〔Example〕

Next, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.

 In addition, the part in an Example means a weight part.

Example-1 Zineb 75.0 parts Polyoxyethylene sorbitan fatty acid ester 3.0 parts Lignin sulfonate 3.0 parts PVP 0.3 parts Polyoxyalkylene alkyl amine-based surfactant (molecular weight 18000) (KP2919 manufactured by Kao Corporation) 2.0 parts Clay 16.7 parts And then pulverize to obtain a wettable powder.

Example-2 Zineb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkylnaphthalene sulfonate 3.0 parts Polyoxyalkylene alkylamine type surfactant (molecular weight 20000) (KP2921 manufactured by Kao Corporation) 3.0 parts Clay 16.0 parts are mixed After that, pulverize to make a wettable powder.

Example-3 Manneb 75.0 parts Polyoxyethylene alkyl ether 3.0 parts Lignin sulfonate 3.0 parts PVP 0.2 parts Polyoxyalkylene alkyl amine surfactant (molecular weight 27000) (Kao's 2923) 3.0 parts Clay 15.8 parts After mixing, the mixture is ground to obtain a wettable powder.

Example-4 Manneb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkylnaphthalene sulfonate 3.0 parts PVP 0.3 parts Polyoxyalkylene alkylamine surfactant (molecular weight 31000) (KP2922 manufactured by Kao Corporation) 1.0 part Clay 17.7 After mixing the parts, grind to make wettable powder.

Example-5 Manneb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Polyoxyethylene alkylaryl ether sulfate
3.0 parts PVP 0.4 parts Clay 18.6 parts After mixing, grind to make wettable powder.

Example-6 Manzeb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Lignin sulfonate 3.0 parts PVP 0.4 parts Polyoxyalkylene alkyl amine type surfactant (molecular weight 20000) 0.5 parts Clay 18.1 parts are crushed and then pulverized with water. Use as a Japanese medicine.

Example-7 Manneb 50.0 parts 1,2-bis (3-methoxycarbonyl-2-thioureido) benzene 20.0 parts Polyoxyethylene alkyl ether 4.0 parts Fatty acid (soap) 2.0 parts PVP 0.2 parts Polyoxyalkylene alkyl amine surfactant (Molecular weight 31000) 3.0 parts Clay 20.8 parts After mixing, grind to make wettable powder.

Example-8 Polycarbamate 75.0 parts Polyoxyethylene resin acid ester 3.0 parts Lignin sulfonate 3.0 parts Polyoxyalkylene alkylamine surfactant (molecular weight 27,000) 3.0 parts Clay 16.0 parts After mixing, pulverized wettable powder And

Example-9 Probineb 50.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkyl sulfate ester salt 3.0 parts Polyoxyalkylene alkylamine-based surfactant (molecular weight 18000) 2.0 parts Clay 42.0 parts After mixing, pulverization and wettable powder To do.

For comparison, examples of blending by a technique which does not belong to the scope of the present invention or a known technique are listed below as reference examples.

Reference Example-1 Zineb 75.0 parts Polyoxyethylene sorbitan fatty acid ester 3.0 parts Lignin sulfonate 3.0 parts Clay 19.0 parts are mixed and ground to obtain a wettable powder.

Reference example-2 Zineb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkylnaphthalene sulfonate 3.0 parts Polyoxyalkylene alkylamine-based surfactant (molecular weight 900) (Leon Co., Ltd. Eso de Yuomin T / 20)
Mix 3.0 parts clay and 16.0 parts clay and grind to make wettable powder.

Reference Example-3 Manneb 75.0 parts Polyoxyethylene alkyl ether 3.0 parts Lignin sulfonate 3.0 parts Dialkyl sulfosuccinate 4.0 parts Clay 15.0 parts are mixed and ground to obtain a wettable powder.

Reference Example-4 Manneb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkylnaphthalene sulfonate 3.0 parts PVP 0.1 parts Polyoxyalkylene alkylamine surfactant (molecular weight 27000) 0.3 parts Clay 18.6 parts After mixing, crushed Use as a wettable powder.

Reference Example-5 Manzeb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Polyoxyethylene alkylaryl ether sulfate
3.0 parts Polyoxyethylene resin acid ester 3.0 parts Clay 16.0 parts After mixing, grind to make wettable powder.

Reference Example-6 Manzeb 75.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Lignin sulfonate 3.0 parts PVP 0.1 parts Clay 18.9 parts After mixing, grind to obtain a wettable powder.

Reference Example-7 Manneb 50.0 parts 1,2-bis (3-methoxycarbonyl-2-thioureido) benzene 20.0 parts polyoxyethylene alkyl ether 4.0 parts fatty acid (soap) 2.0 parts polyoxyethylene alkylaryl ether 4.0 parts clay 20.0 parts After mixing, the mixture is ground to obtain a wettable powder.

Reference Example-8 Polycarbamate 75.0 parts Polyoxyethylene resin acid ester 3.0 parts Lignin sulfonate 3.0 parts Alkylbenzene sulfonate 4.0 parts Clay 15.0 parts are mixed and ground to obtain a wettable powder.

Reference example-9 Probineb 50.0 parts Polyoxyethylene alkylaryl ether 3.0 parts Alkyl sulfate ester 3.0 parts Polyoxyethylene alkylaryl ether sulfate
Mix 4.0 parts of clay and 40.0 parts of clay and grind to make wettable powder.

Test Example Next, the effect of the present invention will be specifically described with reference to a test example.
The test method in each test example was as follows.

Mixability test A poly bucket with a capacity of 15 liters was charged with 10 liters of 3 degrees hard water at 20 ° C., the following mixing partner agents were pre-diluted and stirred at a predetermined dilution ratio, and the samples shown in Examples and Reference Examples were mixed. Add at the specified dilution ratio and mix thoroughly.

Submersible pump (SP50 type made by Shindaiwa Kogyo) has an inner diameter of 16 mm
Attach a 1m vinyl hose, mix under reflux for 1 hour in a poly bucket, and let stand for 30 minutes. The degree of aggregation generated at this time is observed to judge the practicality.

Mixed partner Mixed agent-1 Insecticide A O, O-dimethyl-S- [5-methoxy-1,3,4thiadiazole 2 (3H) onyl- (3) -methyl] dithiophosphate emulsion Adhesive A Polyoxyethylene Resin acid ester mixed-2 insecticide B ethyl-N- (diethyldithiophosphorylacetyl)-
N-methyl carbamate emulsion Insecticide C Bis (chlorophenyl) trichloroethanol wettable powder Adhesive A Polyoxyethylene resin acid ester mixed-3 Insecticide D 3-Methyl-1,5-bis (2,4xylyl) -1, 3,5-Triazapenta-1,4 diene emulsion mixed -4 Insecticide E Purified machine oil Table 1 shows the results of the compatibility test with other drugs etc. of the formulations shown in Examples and Reference Examples.

From the above results, it can be seen that the wettable powder for agricultural and horticultural use according to the present invention exhibits better compatibility with other drugs as compared with the preparations according to the known techniques mentioned as reference examples.

〔The invention's effect〕

The agricultural and horticultural wettable powder composition of the present invention contains 0.2 to 0.4% by weight of PVP and / or a polyoxyalkylenealkylamine-based surfactant having a molecular weight of 5000 or more in a preparation containing the agricultural or horticultural germicide as an active ingredient. Since it is blended up to 3.0% by weight, it prevents aggregation when mixed with other drugs and shows excellent compatibility, and is desirable for use such as hydration, suspension, fineness, and dispersibility in water. It has excellent physicochemical properties, and is not only toxic to humans and animals, but also safe from phytotoxicity to agricultural and horticultural plants.

Claims (1)

(57) [Claims] 1. Zinc ethylene bisdithiocarbamate,
Manganese ethylene bisdithiocarbamate, zinc ion coordination Manganese ethylene bisdithiocarbamate, bisdimethyldithiocarbamoyl zinc containing ethylene bisdithiocarbamate or zinc propylene bisdithiocarbamate as an active ingredient And 0.2 to 0.4% by weight of polyvinylpyrrolidone and / or 0.5 to 3.0% by weight of a polyoxyalkylenealkylamine-based surfactant having a molecular weight of 5000 or more per unit composition as an anti-agglomeration agent. Agent composition.