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Water-dispersing granulated pesticide containing pyraclostrobin and boscalid, preparation method and application thereof

A technology of pyraclostrobin and boscalid, which is applied in the field of water-dispersible granule pesticides, can solve the problems of rapid disintegration, difficulty in development and suspension rate of pyraclostrobin-boscalid water-dispersible granules. Advanced problems, to achieve the effect of good drug efficacy, high suspension rate and synergistic effect

Inactive Publication Date: 2015-03-25
河北野田农用化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a water-dispersible granule pesticide containing pyraclostrobin and boscalid, its preparation method and application. problem, the pyraclostrobin boscalid water-dispersible granule prepared by the method of the present invention disintegrates quickly, has a high suspension rate, and has good drug efficacy

Method used

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  • Water-dispersing granulated pesticide containing pyraclostrobin and boscalid, preparation method and application thereof
  • Water-dispersing granulated pesticide containing pyraclostrobin and boscalid, preparation method and application thereof
  • Water-dispersing granulated pesticide containing pyraclostrobin and boscalid, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Preparation of 36% pyraclostrobin · boscalid water dispersible granules

[0045] Add 9.5g of pyraclostrobin technical substance (95% purity, 9.0g in percent) into the beaker, then add 1g of N-methylpyrrolidone, 5g of methyl oleate, 2g of nonylphenol polyoxyethylene ether, 1g Silwet-408, heated to 50°C and fully stirred and mixed to make it homogeneous and transparent, prepared into pyraclostrobin oil phase, then added 31.1g of diatomaceous earth and mixed thoroughly to make the oil phase liquid fully adsorbed in the diatomite. Add 28.4g of boscalid (purity 95%, 27.0g in percent), 12g of polycarboxylate dispersant, and 7g of sodium lignosulfonate to the diatomite on which the oil phase of pyraclostrobin has been absorbed , 3 g sodium alkyl succinate sulfonate. The above materials were mixed and pulverized by a universal pulverizer, and then pulverized by a jet pulverizer, then 12 g of water was added to knead and granulate, and after drying, 36% pyraclostr...

Embodiment 2

[0046] Example 2 Preparation of 36% pyraclostrobin · boscalid water dispersible granules

[0047]Add 9.5g of pyraclostrobin technical substance (95% purity, 9.0g in percent) into the beaker, then add 1g of N-methylpyrrolidone, 5g of paraffin oil, 2g of nonylphenol polyoxyethylene ether, 1g of Silwet- 408, heated to 50°C and fully stirred and mixed to make it homogeneous and transparent, then prepared the oil phase of pyraclostrobin, then added 31.1g of diatomaceous earth and mixed thoroughly to make the oil phase liquid fully adsorbed in the diatomaceous earth. Add 28.4g of boscalid (purity 95%, 27.0g in percent), 12g of polycarboxylate dispersant, and 7g of sodium lignosulfonate to the diatomite on which the oil phase of pyraclostrobin has been absorbed , 3 g sodium alkyl succinate sulfonate. The above materials were mixed and pulverized by a universal pulverizer, and then pulverized by a jet pulverizer, then 12 g of water was added to knead and granulate, and after dryi...

Embodiment 3

[0048] Example 3 Preparation of 36% pyraclostrobin · boscalid water dispersible granules

[0049] Add 9.5g of pyraclostrobin technical substance (95% purity, 9.0g in percent) into the beaker, then add 1g of DMF, 5g of epoxy soybean oil, 2g of nonylphenol ethoxylate, 1g of Silwet-408, After heating to 50°C and fully stirring and mixing to make the homogeneous and transparent phase, prepare the oil phase of pyraclostrobin, then add 31.1 g of diatomaceous earth and mix thoroughly, so that the oil phase liquid is fully absorbed in the diatomaceous earth. Add 28.4g of boscalid (purity 95%, 27.0g in percent), 12g of polycarboxylate dispersant, and 7g of sodium lignosulfonate to the diatomite on which the oil phase of pyraclostrobin has been absorbed , 3 g sodium alkyl succinate sulfonate. The above materials were mixed and pulverized by a universal pulverizer, and then pulverized by a jet pulverizer, then 12 g of water was added to knead and granulate, and after drying, 36% pyr...

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Abstract

The invention discloses a water-dispersing granulated pesticide containing pyraclostrobin and boscalid, a preparation method and application thereof, and relates to the technical field of water-dispersing granulated pesticide. The constituent content by weight percent is as follows: 5% to 15% of pyraclostrobin; 21% to 31% of boscalid; 4% to 10% of solvent; 2% to 5% of emulsifier; 15% to 25% of dispersant; 1% to 5% of wetting agent; complementing the rest content with carrier to 100%. The preparation method comprises the following steps: heating and uniformly mixing active compound of pyraclostrobin, the solvent and emulsifier to prepare an oil phase of pyraclostrobin, then adsorbing the oil phase with the carrier; adding active compound of boscalid, the dispersant and the wetting agent into the carrier which adsorbs the oil phase of pyraclostrobin, mixing and then crushing; adding water into the material obtained by the aforementioned steps, kneading and then granulating by extrusion, and then drying to obtain the water-dispersing granulated agent containing pyraclostrobin and boscalid. The water-dispersing granulated pesticide containing pyraclostrobin and boscalid prepared by the provided method is quickly disintegrated, high in suspension rate, and good in pesticide effect.

Description

Technical field [0001] The present invention relates to the technical field of water-dispersible granular pesticides. Background technique [0002] Pyraclostrobin is a methoxyacrylate fungicide developed by BASF. It is a mitochondrial respiration inhibitor that blocks cytochrome b and C. 1 Electron transfer between cells inhibits mitochondrial respiration, making the mitochondria unable to produce and provide the energy (ATP) required for normal cell metabolism, eventually leading to cell death. Pyraclostrobin has a strong ability to inhibit the germination of pathogen spores and has a good inhibitory effect on the growth of hyphae in leaves. It has a long lasting effect and has potential therapeutic activity. Pyraclostrobin has protective effects, therapeutic effects, systemic conductivity and resistance to rainwater erosion, and has a wide range of applications. Therefore, pyraclostrobin has broad market prospects. The compound patent protection of pyraclostrobin in Chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N25/14A01P3/00A01N43/40
Inventor 姚银娟任忠亮郑清波王玉平孟丽英田会芳
Owner 河北野田农用化学有限公司