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Microcapsule suspending agent containing metalaxyl-M and azoxystrobin

A microcapsule suspending agent, fine metalaxyl technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of short duration of sterilization, and achieve long-lasting effect, stable performance, and low environmental pollution. Effect

Inactive Publication Date: 2015-11-25
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the duration of the sterilization of the two agents currently used, mefenaxyl and azoxystrobin, is too short, causing farmers to frequently use the drug and continuously increase the dosage of the agent. Many areas have caused the emergence of drug resistance, and it has also caused environmental pollution. Therefore, it is urgent to improve the efficacy of the drug, reduce the probability of bacterial resistance and prolong the duration of the drug.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 10g of metalaxyl and 20g of azoxystrobin into a three-neck flask equipped with a thermometer and stirring device, add 10g of cyclohexanone and 20g of xylene, heat to 56°C to dissolve completely, add 3g of p-methylene polyphenylisocyanate Mix well, then add 4g of alkylarylphenol polyoxyethylene ether phosphate and 1g of styrylphenol polyoxyethylene ether and mix evenly, then add 2g of dispersant SOPA-270 aqueous solution and a part of water, stir at 4000 rpm After 10 minutes, stir evenly and add 20% ethylene glycol aqueous solution to carry out polymerization reaction for 2 hours. After the reaction is completed, add the remaining amount of dispersant SOPA-2702g and the remaining amount of water, and stir at 4000 rpm for 10 minutes to obtain refined A A microcapsule suspension composed of defamyl and azoxystrobin.

Embodiment 2

[0019] Add 20g of metalaxyl and 20g of azoxystrobin into a three-necked flask equipped with a thermometer and stirring device, add 15g of cyclohexanone and 20g of xylene, heat to 56°C to dissolve completely, add 4g of p-methylene polyphenylisocyanate Mix well, then add 4g of alkylarylphenol polyoxyethylene ether phosphate and 2g of styrylphenol polyoxyethylene ether and mix well, then add 3g of dispersant SOPA-270 aqueous solution and a part of water, stir at 4000 rpm After 10 minutes, stir evenly and add 20% ethylene glycol aqueous solution to carry out polymerization reaction for 2 hours. After the reaction is completed, add the remaining amount of dispersant SOPA-2702g and the remaining amount of water, and stir at 4000 rpm for 10 minutes to obtain refined A A microcapsule suspension composed of defamyl and azoxystrobin.

Embodiment 3

[0021] Add 20g of metalaxyl and 10g of azoxystrobin into a three-necked flask equipped with a thermometer and a stirring device, add 10g of cyclohexanone and 15g of xylene, heat to 56°C to dissolve completely, and add 3g of p-methylene polyphenylisocyanate Mix well, then add 3g of alkylarylphenol polyoxyethylene ether phosphate and 2g of styrylphenol polyoxyethylene ether and mix well, then add 4g of SOPA-270 aqueous solution and a part of water, and stir at 4000 rpm After 10 minutes, stir evenly and add 20% ethylene glycol aqueous solution to carry out polymerization reaction for 2 hours. After the reaction is completed, add the remaining amount of dispersant SOPA-2702g and the remaining amount of water, and stir at 4000 rpm for 10 minutes to obtain the refined nail cream A microcapsule suspension compounded by Lingling and azoxystrobin.

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Abstract

The invention relates to a microcapsule suspending agent containing metalaxyl-M and azoxystrobin. The microcapsule suspending agent containing metalaxyl-M and azoxystrobin is prepared by microencapsulating metalaxyl-M and azoxystrobin by utilizing polyurethane as a wall material. The microcapsule suspending agent containing metalaxyl-M and azoxystrobin consists of the following components in percentage by weight: 1%-40% of metalaxyl-M, 1%-40% of azoxystrobin, 1%-40% of a capsule core solvent, 1%-15% of a capsule wall material, 1%-10% of an emulsifying agent, 1%-5% of a dispersing agent and the balance of water. The microcapsule suspending agent containing metalaxyl-M and azoxystrobin can be used for preventing and treating pathogenic bacteria during pollution-free production in the agriculture field.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, in particular to a microcapsule suspension containing metalaxyl-pur and azoxystrobin. Background technique [0002] Metalaxyl is a systemic fungicide of phenylamide type. It is a high-efficiency form of metalaxyl and the first fungicide with three-dimensional optical activity on the market. It has the effect of treating and eradicating diseases, especially for downy mildew. Phytophthora and Pythium have good control effects on downy mildew, early blight, late blight, downy mildew and other diseases of vegetables, fruit trees, tobacco, oil plants, cotton, grain and other crops caused by Pythium. [0003] Azoxystrobin is a new high-efficiency, broad-spectrum, systemic fungicide. It can be used for stem and leaf spray, seed treatment, and soil treatment; it is effective against almost all fungi (Ascomycetes, Basidiomycetes, Oomycetes) and half-known fungi) diseases, such as powdery mildew, rus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N25/04A01N25/28A01P3/00A01N37/46
Inventor 曹希敏王敏周斌彭述明
Owner GUANGDONG ZHONGXUN AGRI TECH
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