Tricyclazole-containing suspending agent as well as preparation method and application thereof

Abstract

The invention belongs to the field of agricultural bactericides, and relates to a tricyclazole-containing suspending agent as well as a preparation method and application thereof. The active component of the suspending agent containing tricyclazole contains tricyclazole, and the suspending agent containing tricyclazole is characterized in that auxiliaries in the suspending agent contain a wetting dispersant and an additive, the wetting dispersant accounts for 1%-20% of the mass of the suspending agent, the additive accounts for 0.1%-10% of the mass of the suspending agent, and the additive is water-based polyamide wax. Compared with the prior art, the suspending agent provided by the invention does not have the problems of wall hanging, drying, peeling and caking of preparation feed liquid, is high in preparation production efficiency, good in long-term storage stability and easy to spray and apply, has an excellent prevention effect on rice blast, and does not have phytotoxicity risk.

Description

Technical Field

[0001] The invention belongs to the field of agricultural fungicides and relates to a tricyclazole-containing suspension and a preparation method and application thereof. Background Art

[0002] Tricyclazole is a protective triazole fungicide with strong systemic properties. It is particularly effective in preventing and controlling rice blast. After application, it can be absorbed by the roots, stems and leaves of rice and can be transported in the plant body. Spraying the drug 1-2 times during the entire rice growth period can effectively prevent the occurrence of rice blast. Enoxabiodinium is a strobilurin fungicide independently created and developed in China. It has a broad fungicide spectrum and high fungicide activity. It has a good control effect on rice blast and has both preventive and therapeutic effects.

[0003] Since tricyclazole and enoxamyl have different mechanisms of action, the development of enoxamyl·tricyclazole suspension can delay the occurrence of target resistance, effectively prevent and treat rice blast, and has good market prospects. In recent years, under the influence of environmental pressure, the synthesis process of tricyclazole technical has changed, and the number of washing and desalting times in the final purification step of tricyclazole technical synthesis has decreased, resulting in a general high salt impurity content in tricyclazole technical sold on the market. The suspension product produced by using tricyclazole technical with high salt impurities is viscous, and there is a phenomenon of peeling and caking after the preparation material is hung on the wall and dried, which has a serious impact on agricultural production operations. In the production process, the suspension containing tricyclazole is viscous and easily adheres to the preparation production pipeline, causing pipeline blockage and reducing production efficiency; in the application process, the suspension containing tricyclazole adheres to the wall of the packaging bottle, and after being left for a long time, it dries, peels and lumps. When farmers spray the liquid, the lumped liquid is easy to block the nozzle of the spraying device, affecting farmers' field application. In addition, the concentration of local active ingredients in the liquid containing the lumped part is relatively high, which may bring the risk of pesticide damage. The main reason for the suspension containing tricyclazole to have such problems is that the salt electrolytes present in the original tricyclazole increase the number of surfactant micelles in the pesticide preparation, resulting in the transformation of spherical micelles into rod-shaped micelles, increasing the movement resistance, and thus increasing the viscosity of the system. In order to improve the production efficiency of the suspension containing tricyclazole, improve the convenience of farmers' spraying and reducing the risk of pesticide damage, the existing suspension containing tricyclazole products have viscous preparation liquids, easy to dry, peel and agglomerate on the wall, which needs to be solved urgently. At present, there are no articles or patent reports on solutions for wall drying, peeling and caking of tricyclazole-containing suspension liquid. Summary of the invention

[0004] The invention aims to provide a tricyclazole-containing suspension concentrate with good efficacy and no problem of liquid wall adhesion, peeling and caking.

[0005] To achieve the above purpose, the present invention adopts the following technical solution:

[0006] A suspension containing tricyclazole, wherein the active ingredient contains tricyclazole, and the characteristic is that the auxiliary agent in the suspension contains a wetting dispersant and an additive, wherein the wetting dispersant accounts for 1%-20% of the mass of the suspension, and the additive accounts for 0.1%-10% of the mass of the suspension, and the additive is water-based polyamide wax.

[0007] The wetting and dispersing agent is one or more of carboxylic acid copolymers, alkylphenol polyoxyethylene ethers, polyoxyethylene polyoxypropylene ether block copolymers, sulfates, phosphates, succinates, alkylnaphthalene formaldehyde condensate sulfonates, fatty alcohol polyoxyethylene ethers, modified styrene acrylic acid copolymers, alkylbenzene ether sulfonates, polyether phosphates, acrylic acid maleic acid copolymers, and sodium isopropylnaphthalene sulfonate.

[0008] Preferably, the wetting and dispersing agent is one or more of carboxylic acid copolymers, polyoxyethylene polyoxypropylene ether block copolymers, sulfates, phosphates, alkylnaphthalene formaldehyde condensate sulfonates, fatty alcohol polyoxyethylene ethers, acrylic acid maleic acid copolymers, and sodium isopropylnaphthalene sulfonate.

[0009] The additive is water-based polyamide wax.

[0010] Preferably, the additive is one or more of water-based polyamide wax PAMID D772, water-based polyamide wax PA-800, and water-based polyamide wax AQH-810, and the additive amount accounts for 0.5%-5% of the mass of the suspending agent.

[0011] The suspension concentrate comprises, by weight percentage, 0.1%-30% of active component A, 1%-60% of active component B, 1%-35% of auxiliary agent, and the balance is deionized water; wherein the active component A is enoxamyl, the active component B is tricyclazole, and the auxiliary agent is one or more of an antifreeze agent, a thickener, a preservative, a defoaming agent, a wetting dispersant, and an additive.

[0012] Preferably, the suspending agent comprises, by weight percentage, 0.5%-25% of active component A, 2%-55% of active component B, 3%-30% of auxiliary agent, and the balance is deionized water.

[0013] The antifreeze agent, thickener, preservative and defoaming agent mentioned above can be added according to the materials described in the prior art.

[0014] The preparation method of the suspension containing tricyclazole comprises the following steps: adding active component A, active component B, auxiliary agent and deionized water into a mixing tank according to a required proportion and mixing them evenly; firstly, the mixture is coarsely crushed by a high-speed shearing machine; then, the mixture is introduced into a sand mill for fine grinding; and when the particle size of 95% of the material reaches below 5 μm, filtering is performed to obtain the preparation.

[0015] The tricyclazole-containing suspension concentrate is used in preventing and controlling rice blast.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The tricyclazole-containing suspension of the present invention is used in combination with a specific wetting dispersant, thereby solving the problem of the salt substances commonly contained in the current commercial tricyclazole original medicine strengthening the association of surfactant micelles, and obtaining a tricyclazole-containing suspension with a lower viscosity. The lower viscosity reduces the adhesion of the preparation liquid to the production equipment and the inner wall of the packaging container. By applying water-based polyamide wax in the formulation formula, when the suspension liquid adheres to the inner wall of the container, it is easy to detach from the inner wall of the container. Water-based polyamide wax is currently mostly used in water-based wood coatings and industrial coatings. The water-based polyamide wax contains hydroxyl and amide groups, has strong hydrogen bond attraction, can form a network structure in the coating, effectively establishes thixotropic viscosity, controls sagging and prevents sedimentation, and its application in the field of pesticide formulation development has not been reported. The suspension agent of the present invention is used together with a specific wetting and dispersing agent combination and an aqueous polyamide wax. The two work together to make the suspension agent liquid have both low viscosity and thixotropic (shear thinning) characteristics, and it is not easy to adhere to the production equipment and the inner wall of the container containing the preparation, and even if the liquid adheres, it is easy to desorb, which solves the problem that the preparation liquid is easy to adhere to the wall, peel off and agglomerate in the currently commercially available tricyclazole suspension agent. The suspension agent of the present invention has good storage stability over time, is convenient for the preparation product to be stored and circulated in the market, and is convenient for farmers to accept and recognize the preparation product. The suspension agent of the present invention has good application performance and has a good prevention and control effect on rice blast. DETAILED DESCRIPTION

[0018] In order to better understand the essence of the present invention, the contents of the present invention are further described in detail in conjunction with the embodiments below. The contents mentioned in the embodiments are not limitations of the present invention. The following is only used to explain the present invention. Any modifications, substitutions or improvements made without departing from the spirit and principles of the present invention are all within the scope of protection required by the present invention.

[0019] Preparation formula example

[0020] Example 1: 8% oxathiapiprolin-tricyclazole suspension

[0021] According to the formula requirements, by mass percentage, enoxamyl 1%, tricyclazole 7%, YUS-FS7PG 1%, EthylanNS-500LQ 2%, Morwet D-425 1%, magnesium aluminum silicate SF04 1%, water-based polyamide wax AQH-810 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain 8% enoxamyl.tricyclazole suspension with good dispersibility.

[0022] Example 2: 15% oxadiazine-tricyclazole suspension

[0023] According to the formula requirements, by mass percentage, 4% of enoxadone, 11% of tricyclazole, DOWFAX TM D-850 2%, DURAMAX TM D-205 3%, TERGITOL TM W-600 2%, magnesium aluminum silicate SF04 1%, water-based polyamide wax PAMIDD772 1%, make up the remaining water to 100%, add the above materials into a mixing kettle, stir and mix with a high shear machine, and then sand grind with a sand mill to obtain a 15% enoxamyl.tricyclazole suspension with good dispersibility.

[0024] Example 3: 25% oxathiapiprolin-tricyclazole suspension

[0025] According to the formula requirements, by mass percentage, 2.5% of enoxamil, 22.5% of tricyclazole, 2% of Tersperse 2500, 2% of YUS-FS3000, 2% of Ethylan 324, 1% of magnesium aluminum silicate SF04, 0.5% of white carbon black, and 1% of water-based polyamide wax PAMID D772 are added. The balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamil.tricyclazole suspension with good dispersibility.

[0026] Example 4: 40% oxathiapiprolin-tricyclazole suspension

[0027] According to the formula requirements, by mass percentage, enoxamyl 10%, tricyclazole 30%, YUS-5050PB 2%, AEO-3 1%, YUS-FS3000 3%, magnesium aluminum silicate SF04 2%, white carbon black 1%, water-based polyamide wax PA-8002%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 40% enoxamyl.tricyclazole suspension with good dispersibility.

[0028] Example 5: 25% oxathiapiprolin-tricyclazole suspension

[0029] According to the formula requirements, by mass percentage, enoxamyl 2.5%, tricyclazole 22.5%, YUS-FS3000 2%, Agrilan 788 2%, Synperonic T / 908 1%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMID D772 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamyl.tricyclazole suspension concentrate with good dispersibility.

[0030] Example 6: 55% oxadiazine-tricyclazole suspension

[0031] According to the formula requirements, by mass percentage, enoxamyl 22%, tricyclazole 33%, Atlas G-5000 2%, DURAMAXTM D-518 3%, SP-SC3060 1%, magnesium aluminum silicate SF04 2%, white carbon black 1%, water-based polyamide wax PAMID D772 4%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 55% enoxamyl.tricyclazole suspension with good dispersibility.

[0032] Example 7: 25% oxathiapiprolin-tricyclazole suspension

[0033] According to the formula requirements, by mass percentage, enoxamil 2.5%, tricyclazole 22.5%, Agrilan 788 1%, Morwet D-400 2%, TRITON TM GR-7M 2%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMID D772 3%, the balance water is added to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamyl tricyclazole suspension concentrate with good dispersibility.

[0034] Example 8: 10% oxathiapiprolin-tricyclazole suspension

[0035] According to the formula requirements, by mass percentage, enoxamyl 4%, tricyclazole 6%, Agrilan 700 2%, Morwet IP 2%, Ethylan NS-500LQ 1%, magnesium aluminum silicate SF04 1%, water-based polyamide wax PAMID D772 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 10% enoxamyl.tricyclazole suspension concentrate with good dispersibility.

[0036] Example 9: 18% oxathiapiprolin-tricyclazole suspension

[0037] According to the formula requirements, by mass percentage, enoxamil 12%, tricyclazole 6%, AEO-5 2%, Atlox Metasperse TM500L 3%, Atlas G-5002L 1%, magnesium aluminum silicate SF04 1%, water-based polyamide wax PAMIDD772 1%, make up the balance with water to 100%, add the above materials into a mixing kettle, stir and mix with a high shear machine, and then sand grind with a sand mill to obtain 18% enoxamyl.tricyclazole suspension with good dispersibility.

[0038] Example 10: 56% oxathiapiprolin-tricyclazole suspension

[0039] According to the formula requirements, by mass percentage, enoxamil 3%, tricyclazole 53%, Synperonic A20 2%, Multiwet TM M0-70R 2%, Morwet IP 2%, magnesium aluminum silicate SF04 2%, white carbon black 1%, water-based polyamide wax PAMID D772 4.5%, the balance of water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 56% enoxamyl tricyclazole suspension concentrate with good dispersibility.

[0040] Example 11: 30% oxathiapiprolin-tricyclazole suspension

[0041] According to the formula requirements, by mass percentage, enoxamyl 15%, tricyclazole 15%, SP-2750 3%, Atlox49171%, SP-SC3060 1%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMID D7721%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 30% enoxamyl.tricyclazole suspension with good dispersibility.

[0042] Example 12: 35% oxadiazine-tricyclazole suspension

[0043] According to the formula requirements, by mass percentage, 20% of enoxamil, 15% of tricyclazole, 2% of Tensiofix DB08, 3% of SK-25CH, 1% of magnesium aluminum silicate SF04, 0.5% of white carbon black, and 1% of water-based polyamide wax PAMID D772 are prepared. The balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 35% enoxamil-tricyclazole suspension with good dispersibility.

[0044] Example 13: 40% oxathiapiprolin-tricyclazole suspension

[0045] According to the formula requirements, by mass percentage, 10% of enoxamil, 30% of tricyclazole, 2% of SP-2728, 2% of MorwetD-500, 1% of Petro AA, 2% of magnesium aluminum silicate SF04, 1% of white carbon black, and 2% of water-based polyamide wax PAMID D772 are prepared. The balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 40% enoxamil.tricyclazole suspension with good dispersibility.

[0046] Example 14: 28% oxathiapiprolin-tricyclazole suspension

[0047] According to the formula requirements, by mass percentage, enoxamyl 10%, tricyclazole 18%, SK-33SC 2%, Agrilan7881%, Tersperse 2500 2%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMIDD7721%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 28% enoxamyl.tricyclazole suspension with good dispersibility.

[0048] Example 15: 12% oxathiapiprolin-tricyclazole suspension

[0049] According to the formula requirements, by mass percentage, enoxamyl 5%, tricyclazole 7%, YUS-FS3000 2%, AtlasG-5000 2%, magnesium aluminum silicate SF04 1%, water-based polyamide wax PAMID D772 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 12% enoxamyl.tricyclazole suspension with good dispersibility.

[0050] Comparative Example 1: 8% oxathiapiprolin-tricyclazole suspension

[0051] According to the formula requirements, by mass percentage, 1% of enoxamil, 7% of tricyclazole, 1% of YUS-FS7PG, 2% of EthylanNS-500LQ, 1% of Morwet D-425, 1% of magnesium aluminum silicate SF04, and 0.12% of xanthan gum are added, and the balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain an 8% enoxamil.tricyclazole suspension with good dispersibility.

[0052] Comparative Example 2: 15% oxadiazine﹒tricyclazole suspension

[0053] According to the formula requirements, by mass percentage, 4% of enoxadone, 11% of tricyclazole, DOWFAX TM D-850 2%, DURAMAX TM D-205 3%, TERGITOL TM W-600 2%, magnesium aluminum silicate SF04 1%, and the balance water is added to 100%, and the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 15% enoxamyl.tricyclazole suspension with good dispersibility.

[0054] Comparative Example 3: 25% oxathiapiprolin-Tricyclazole SC

[0055] According to the formula requirements, by mass percentage, 2.5% of enoxamil, 22.5% of tricyclazole, 2% of Tersperse 2500, 2% of YUS-FS3000, 2% of Ethylan 324, 1% of magnesium aluminum silicate SF04, 0.5% of white carbon black, and 0.1% of xanthan gum are added, and the balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamil.tricyclazole suspension with good dispersibility.

[0056] Comparative Example 4: 25% oxathiapiprolin-Tricyclazole SC

[0057] According to the formula requirements, by mass percentage, 2.5% of enoxamil, 22.5% of tricyclazole, 2% of Tersperse 2500, 2% of YUS-FS3000, 2% of Ethylan 324, 1% of magnesium aluminum silicate SF04, and 0.5% of white carbon are added, and the balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamil.tricyclazole suspension with good dispersibility.

[0058] Comparative Example 5: 25% oxathiapiprolin-Tricyclazole SC

[0059] According to the formula requirements, by mass percentage, enoxamyl 2.5%, tricyclazole 22.5%, Tersperse 25002%, YUS-FS3000 2%, YUS-RXB 2%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMIDD772 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamyl.tricyclazole suspension with good dispersibility.

[0060] Comparative Example 6: 40% oxathiapiprolin-tricyclazole suspension

[0061] According to the formula requirements, by mass percentage, 10% of enoxamil, 30% of tricyclazole, 2% of YUS-5050PB, 1% of AEO-3, 3% of YUS-FS3000, 2% of magnesium aluminum silicate SF04, 1% of white carbon black, and 1% of polyvinyl pyrrolidone are added, and the balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 40% enoxamil.tricyclazole suspension with good dispersibility.

[0062] Comparative Example 7: 25% oxathiapiprolin-Tricyclazole SC

[0063] According to the formula requirements, by mass percentage, enoxamyl 2.5%, tricyclazole 22.5%, YUS-FS3000 2%, Agrilan 788 2%, Synperonic T / 908 1%, S80 2%, magnesium aluminum silicate SF04 1%, white carbon black 0.5%, water-based polyamide wax PAMID D772 1%, the balance water is supplemented to 100%, the above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamyl.tricyclazole suspension concentrate with good dispersibility.

[0064] Comparative Example 8: 55% oxathiapiprolin-Tricyclazole SC

[0065] According to the formula requirements, by mass percentage, 22% of enoxamil, 33% of tricyclazole, 2% of Atlas G-5000, 3% of DURAMAXTM D-518, 1% of SP-SC3060, 2% of magnesium aluminum silicate SF04, 1% of white carbon black, and 3% of organic bentonite are added. The balance is made up to 100% with water. The above materials are added into a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 55% enoxamil.tricyclazole suspension with good dispersibility.

[0066] Comparative Example 9: 25% oxathiapiprolin-Tricyclazole SC

[0067] According to the formula requirements, by mass percentage, 2.5% of enoxamil, 22.5% of tricyclazole, 1% of Agrilan 788, 2% of Morwet D-400, 2% of SK24N, 1% of magnesium aluminum silicate SF04, 0.5% of white carbon black, and 3% of water-based polyamide wax PAMIDD772 are added. The remaining amount of water is supplemented to 100%, and the above materials are added to a mixing kettle, stirred and mixed with a high shear machine, and then sand-milled with a sand mill to obtain a 25% enoxamil tricyclazole suspension with good dispersibility. Test of wall adhesion and storage stability of sample liquid of the embodiment and comparative example preparation

[0068] The obtained samples of Examples 1-15, Comparative Examples 1-9, and the existing commercially available rice leap (25% enoxamyl tricyclazole suspension (2.5 + 22.5)) products were tested for wall adhesion of the preparation liquid according to the following standards: weigh the commercially available rice leap The mass of the product packaging bottle (high-density polyethylene bottle, specification 1L) (accurate to 0.1g), 500g of each of the above-mentioned preparation samples were added respectively, and after standing at room temperature for 24h, the 1L packaging bottle containing the preparation sample was first rotated 135° from an upright position, tilted for 60s, and then inverted for 60s. After the tilting is completed, the mass of the packaging bottle was weighed again (accurate to 0.1g), and the residual mass of the preparation sample in the 1L packaging bottle after tilting was calculated to account for the residual ratio of the 500g sample (results are shown in Table 1). The drying of the preparation liquid and the storage stability of the preparation were observed after the above-mentioned preparation samples were placed at room temperature for 180d and hot stored for 14d.

[0069] Table 1. Residual ratio, wall adhesion and storage stability of enoxamyl﹒tricyclazole suspension after pouring

[0070]

[0071]

[0072] As can be seen from the data in Table 1, the tricyclazole suspension preparation system containing a specific wetting dispersant and an aqueous polyamide wax (Examples 1-15) has a small residual ratio after being placed for 24 hours, which is about 1%. The storage stability is good after being placed at room temperature for 180 days and after being hot stored for 14 days, and there is no drying phenomenon of the liquid hanging on the wall; when a specific wetting dispersant is used in the preparation formulation system, but no aqueous polyamide wax is added (Comparative Example 2, Comparative Example 4), the residual ratio after being placed for 24 hours increases to about 2%, and there is a small amount of drying phenomenon after being placed at room temperature for 180 days and after being hot stored for 14 days. At the same time, the storage stability is poor, and the liquid is placed at room temperature for 180 days. The water content is greater than 15%; when a specific wetting and dispersing agent is used in the formulation system, but the water-based polyamide wax is replaced by other conventional thickening substances (Comparative Example 1, Comparative Example 3, Comparative Example 6, Comparative Example 8), the residual ratio after 24 hours of dumping increases significantly, about 4-5%, and there is obvious wall hanging and drying phenomenon after being placed at room temperature for 180 days and hot storage for 14 days; when water-based polyamide wax is used in the formulation system, but the auxiliary agent system does not use a specific wetting and dispersing agent (Comparative Example 5, Comparative Example 7, Comparative Example 9), the residual ratio after 24 hours of dumping is high, and there is obvious wall hanging and drying phenomenon after being placed at room temperature for 180 days and hot storage for 14 days. From the above data, it can be seen that when the specific wetting and dispersing agent and the water-based polyamide wax work together in the formulation system, the residual ratio of the preparation sample after being placed for 24 hours, the drying of the liquid after being placed at room temperature for 180 days and hot storage for 14 days, and the storage stability after being placed at room temperature for 180 days and hot storage for 14 days are all good, which can effectively solve the problem of liquid wall adhesion, drying and peeling that is prone to occur in tricyclazole suspension concentrates.

[0073] Application Performance Testing Example

[0074] The samples of Example 3, Example 5, Example 7, and commercially available rice sprouts were mixed. The product (25% enoxamyl.tricyclazole suspension, Shenyang Kechuang Chemicals Co., Ltd.) was diluted 2500 times, the sample of Example 2 was diluted 1500 times, and the sample of Example 6 was diluted 5500 times (the final concentration of the diluted solution was 100 mg / L), and the surface tension and contact angle of the diluted solution obtained above were measured (the results are shown in Table 2).

[0075] Table 2. Surface tension and contact angle of dilution solutions of different preparations of enoxadine﹒tricyclazole suspension concentrate

[0076]

[0077] The data results in Table 2 show that when the samples of oxathiapiprolin-tricyclazole suspension concentrate with different contents were diluted to the same application dose, the surface tension and contact angle were measured and it was found that the surface tension values ​​and contact angle values ​​of Examples 2, 3, 5, 6 and 7 obtained by the improved method of the patent were all lower than those of the commercially available rice leap product.

[0078] Biological Activity Test Example

[0079] 1. Purpose of the experiment

[0080] Under greenhouse conditions, the control effect of enoxadone and tricyclazole suspension concentrate on rice blast was obtained by comparing the above examples.

[0081] 2. Test reagents

[0082] Example 2: 15% oxadiazine-tricyclazole suspension

[0083] Example 3: 25% oxathiapiprolin-tricyclazole suspension

[0084] Example 5: 25% oxathiapiprolin-tricyclazole suspension

[0085] Example 6: 55% oxadiazine-tricyclazole suspension

[0086] Example 7: 25% oxathiapiprolin-tricyclazole suspension

[0087] Rice jump Product (Shenyang Kechuang Chemicals Co., Ltd.): 25% oxadiazine-tricyclazole suspension

[0088] 3. Test Target

[0089] Pyricularia oryzae.

[0090] 4. Test crops

[0091] Rice [Oryza sativa L.].

[0092] 5. Test methods

[0093] The suspension of oxathiapiprolin and tricyclazole was diluted with water at concentrations of 100 mg / L, 25 mg / L, 6.25 mg / L, and 1.5625 mg / L, and rice seedlings with 2 leaves and 1 heart were sprayed on a crop sprayer. After spraying, they were placed in a ventilated kitchen to dry. After 24 hours, the suspension of spores of rice blast (Pyricularia grisea Sacc) was inoculated, and then moved to an artificial climate chamber for moisturizing culture. The control effect was investigated after 6 days (the results are shown in Table 3).

[0094] Table 3. Control effects of different samples of enoxadone﹒tricyclazole suspension concentrate on rice blast

[0095]

[0096] As can be seen from the data in Table 3, the control effects of Examples 2, 3, 5, 6 and 7 against rice blast are equivalent to or better than those of commercially available rice blast. Product. Compared with the prior art, the tricyclazole suspension obtained by the present invention not only solves the problem of long-term storage of the preparation liquid, wall drying, peeling and caking, but also has good storage stability of the preparation sample over time, a high level of preparation refinement, improved production efficiency of the preparation product, and improved farmers' acceptance of the product. The preparation product is easy to spray and apply, has no risk of pesticide damage, and has a good control effect on rice blast. It has reliable quality, stable performance and strong applicability in production, sales and field operations.

[0097] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A suspension concentrate containing tricyclazole, wherein the active ingredient contains tricyclazole, characterized in that: The auxiliary agent in the suspension agent contains a wetting dispersant and an additive, wherein the wetting dispersant accounts for 1%-20% of the mass of the suspension agent, and the additive accounts for 0.1%-10% of the mass of the suspension agent, and the additive is water-based polyamide wax.

2. The suspending agent containing tricyclazole according to claim 1, characterized in that: The wetting and dispersing agent is one or more of carboxylic acid copolymers, alkylphenol polyoxyethylene ethers, polyoxyethylene polyoxypropylene ether block copolymers, sulfates, phosphates, succinates, alkylnaphthalene formaldehyde condensate sulfonates, fatty alcohol polyoxyethylene ethers, modified styrene acrylic acid copolymers, alkylbenzene ether sulfonates, polyether phosphates, acrylic acid maleic acid copolymers, and sodium isopropylnaphthalene sulfonate.

3. The suspending agent containing tricyclazole according to claim 1, characterized in that: The wetting and dispersing agent is one or more of carboxylic acid copolymers, polyoxyethylene polyoxypropylene ether block copolymers, sulfates, phosphates, alkylnaphthalene formaldehyde condensate sulfonates, fatty alcohol polyoxyethylene ethers, acrylic acid maleic acid copolymers, and sodium isopropylnaphthalene sulfonate.

4. The suspending agent containing tricyclazole according to claim 1, characterized in that: The additive is one or more of water-based polyamide wax PAMID D772, water-based polyamide wax PA-800 and water-based polyamide wax AQH-810, and the additive amount accounts for 0.5%-5% of the mass of the suspending agent.

5. The suspending agent containing tricyclazole according to any one of claims 1 to 4, characterized in that: The suspending agent comprises, by weight percentage, 0.1%-30% of active component A, 1%-60% of active component B, 1%-35% of auxiliary agent, and the balance is deionized water; wherein the active component A is enoxamyl, the active component B is tricyclazole, and the auxiliary agent is one or more of an antifreeze agent, a thickener, a preservative, a defoaming agent, a wetting dispersant, and an additive.

6. The suspending agent containing tricyclazole according to claim 5, characterized in that: The suspending agent comprises, by weight percentage, 0.5%-25% of active component A, 2%-55% of active component B, 3%-30% of auxiliary agent, and the balance is deionized water.

7. A method for preparing a suspension concentrate containing tricyclazole according to claim 1, characterized in that: Active component A, active component B, auxiliary agent and deionized water are added into a mixing tank in the required proportion and mixed evenly. The mixture is firstly coarsely crushed by a high-speed shearing machine, and then introduced into a sand mill for fine grinding. When the particle size of 95% of the material reaches below 5 μm, it is filtered to obtain the preparation.

8. An application of the suspension concentrate containing tricyclazole according to claim 1, characterized in that: The application of the suspension concentrate in preventing and controlling rice blast disease.

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