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A kind of pesticide preparation containing thiazophosphine and preparation method thereof

A pesticide formulation and thiazophosphine technology are applied in the field of pesticide formulations containing thiazophosphine and their preparation, which can solve the problems of crop phytotoxicity, poor compounding performance, unstable quality, etc. , the effect of improving the control efficiency

Active Publication Date: 2022-07-12
南京擎宇生物医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the technical problems in the prior art that the pesticide preparations containing thiazophosphine have poor compounding performance, unstable quality, short storage period, strong odor, and easy to cause phytotoxicity of crops, the present invention provides a pesticide preparation containing thiazophosphine, a pesticide preparation Endothiazolyl exists in the form of microcapsules, which can cover the inherent odor of thiazolyl and ensure the storage stability of thiazolyl-containing pesticide preparations;

Method used

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  • A kind of pesticide preparation containing thiazophosphine and preparation method thereof
  • A kind of pesticide preparation containing thiazophosphine and preparation method thereof
  • A kind of pesticide preparation containing thiazophosphine and preparation method thereof

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Effect test

Embodiment 1

[0080] The pesticide preparation containing thiazophosphine in the present embodiment is made up of the microcapsules wrapped with thiazophosphine and the auxiliary components that are coated on the outside of the microcapsules, and the dosage form is water dispersible granules; Concrete preparation method is as follows:

[0081] S1: Preparation of microcapsule filter cake containing active substance

[0082] Dissolve 20.0g of Ultrazine NA (lignosulfonate) in 460g of water, add 420g of thiazolyl phosphine original drug (95.3%), cut it into an oil-in-water emulsion with an average particle size of 2μm, and then slowly add it to the emulsion with stirring 100g melamine formaldehyde resin prepolymer (50%), stirred at 30℃±2℃ for 1.5h, heated to 50℃±2℃ and continued to react for 2h, cooled to room temperature, and centrifugally filtered to obtain thiazolylphosphine microcapsules with a solid content of 70% The filter cake is 693 g, in which the content of thiazophosphine is 57.2% (...

Embodiment 2

[0088] The pesticide preparation containing thiazophosphine in the present embodiment is made up of the microcapsules wrapped with thiazophosphine and the auxiliary components that are coated on the outside of the microcapsules, and the dosage form is water dispersible granules; Concrete preparation method is as follows:

[0089] S1: Preparation of microcapsule filter cake containing active substance

[0090] Dissolve 20.0g of Ultrazine NA (lignosulfonate) in 460g of water, add 420g of thiazolyl phosphine original drug (95.3%), cut it into an oil-in-water emulsion with an average particle size of 2μm, and then slowly add it to the emulsion with stirring 100g melamine formaldehyde resin prepolymer (50%), stirred at 30℃±2℃ for 1.5h, heated to 50℃±2℃ and continued to react for 2h, cooled to room temperature, and centrifugally filtered to obtain thiazolylphosphine microcapsules with a solid content of 70% The filter cake is 693 g, in which the content of thiazophosphine is 57.2%. ...

Embodiment 3

[0096] The pesticide preparation containing thiazophosphine in the present embodiment is made up of the microcapsules wrapped with thiazophosphine and the auxiliary components that are coated on the outside of the microcapsules, and the dosage form is water dispersible granules; Concrete preparation method is as follows:

[0097] S1: Preparation of microcapsule filter cake containing active substance

[0098] Dissolve 20.0g of Ultrazine NA (lignosulfonate) in 460g of water, add 420g of thiazolyl phosphine original drug (95.3%), cut it into an oil-in-water emulsion with an average particle size of 2μm, and then slowly add it to the emulsion with stirring 100g melamine formaldehyde resin prepolymer (50%), stirred at 30℃±2℃ for 1.5h, heated to 50℃±2℃ and continued to react for 2h, cooled to room temperature, and centrifugally filtered to obtain thiazolylphosphine microcapsules with a solid content of 70% The filter cake is 693 g, in which the content of thiazophosphine is 57.2%. ...

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Abstract

The invention discloses a pesticide preparation containing thiazophosphine and a preparation method thereof, belonging to the field of pesticide preparations. In the present invention, the active substance containing thiazophosphine is first prepared into microcapsules, and further prepared into water dispersible granules or granules containing thiazophosphine microcapsules, which shields the inherent peculiar smell of thiazophosphine and avoids phytotoxicity to sensitive crops. , which improved the compounding performance and storage stability of thiazophosphine with other pesticides.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, and in particular relates to a pesticide preparation containing thiazophosphine and a preparation method thereof. Background technique [0002] Thiazophosphine is a non-fumigation organophosphorus insecticide and nematicide with strong contact killing activity. It has obvious internal drug killing effect on a variety of nematodes, insects and mites. The main mode of action is to inhibit the synthesis of acetylcholinesterase of target pests. , its unique biological and physical and chemical properties make it suitable for soil, stem and leaf application, and has broad-spectrum activity against plant parasitic nematodes, pests, and mites. Thiazophosphine also has high activity against some nematodes that have developed resistance to traditional nematicides. The nematodes that can be controlled include shoot and leaf ectoparasitic nematodes on the ground, root endoparasitic nematodes, semi-endo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/32A01N43/90A01N25/28A01N25/12A01N25/14A01P5/00A01P7/02A01P7/04
CPCA01N57/32A01N43/90A01N25/28A01N25/12A01N25/14Y02A50/30
Inventor 丁秀丽秦敦忠范文娟陆林华王雪松袁杰
Owner 南京擎宇生物医药科技有限公司
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