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20-percent S-methoprene microcapsule suspension and preparing method of 20-percent S-methoprene microcapsule suspension

A technology of microcapsule suspension and methoprene, applied in the field of pesticides, can solve the problems of increased drug resistance to target pests, human and animal poisoning, and environmental pollution

Inactive Publication Date: 2014-08-27
苏衡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mosquitoes are the culprits of spreading deadly diseases, such as Japanese encephalitis, dengue fever, malaria, West Nile malaria, etc. There are many drugs used to kill mosquitoes on the market. These products are traditional sulfur, phosphorus, benzene ring, and heterocyclic pesticides , will always be toxic, and the concentration of the product used is at the ppm (one millionth) level. Extensive use will lead to environmental pollution, human and animal poisoning, and the resistance of drugs to target pests will increase significantly.
In addition, the use of these products is limited to limited building space

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Synthesis of 20% S-Methoprene Microcapsule Suspension Concentrate

[0029] 1) Preparation of No. mixture:

[0030] Check that the high shear reaction apparatus is clean and dry.

[0031] a. Add 113g of deionized water to the reaction device, and open the high-shear reaction system;

[0032] b. slowly add polyvinyl alcohol 6g;

[0033] c. Heat up to 40°C, dissolve polyvinyl alcohol in water, and keep warm for 30 minutes.

[0034] 2) Preparation of No. mixture:

[0035] Check that the high shear reaction apparatus is clean and dry.

[0036] a. Add 126g of S-methoprene stock solution (content 95%) to the device

[0037] b. Add 0.6g of 2,6-di-tert-butylmethylphenol, and then raise the temperature to 50°C;

[0038] c. Throwing 50g of terephthaloyl chloride into the device

[0039] d. Insulate and react at 50-70°C for 1 hour to obtain No. 2 mixture.

[0040] 3) Preparation of No. mixture:

[0041] Check that the reaction appar...

Embodiment 2

[0058] The encapsulation agent is 10 g of ethylenediamine and 50 g of sulfonyl chloride. Other parameters are the same as in Example 1, and the steps are the same as in Example 1 to prepare a 600 g finished product. The effective rate is 100% through the control experiment of mosquito larvae emergence rate.

Embodiment 3

[0060] Encapsulation agent selects 10g of ethylenediamine, sulfonyl chloride 50g, adhesive selects polyvinylpyrrolidone 6g, other parameters are the same as in Example 1, the steps are the same as in Example 1, and 600g of finished product is prepared, and all indicators of the finished product are up to standard, qualified . The effective rate is up to 98% through the control experiment of mosquito larvae emergence rate.

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PUM

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Abstract

The invention provides a 20-percent S-methoprene microcapsule suspension and a preparing method of the 20-percent S-methoprene microcapsule suspension. The invention provides a pesticide product capable of being applied and used in the field in a large scale for killing mosquito larvae from sources. The active ingredient of the pesticide product is S-methoprene; the S-methoprene is of a long-chain unsaturated aliphatic ester structure; and the S-methoprene is used as juvenile hormone and can interfere the growth period of pests, so the pests cannot realize successful eclosion, and a pest killing goal is achieved. The pesticide product is nontoxic and green and is environmentally friendly; the activity on target pests is high; the use concentration is at the ppb level (1ppm=1000ppb); the pesticide product can be spread in the field in a large scale for controlling the mosquito density from sources; and the outbreak of epidemic diseases spread by mosquito vectors can be prevented.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a 20% S-methoprene microcapsule suspension and a preparation method thereof. Background technique [0002] Mosquitoes are the culprits of spreading deadly diseases, such as Japanese encephalitis, dengue fever, malaria, West Nile malaria, etc. There are many drugs used to kill mosquitoes on the market. These products are traditional sulfur, phosphorus, benzene ring, and heterocyclic pesticides , will always be toxic, and the concentration of the product used is at the ppm (part per million) level. Extensive use will lead to environmental pollution, human and animal poisoning, and the drug's resistance to target pests will increase significantly. In addition, the use of these products is limited to limited building spaces. Contents of the invention [0003] The present invention provides a pesticide product that can be used in large-scale fields to eliminate mosquito larvae fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/28A01N37/36A01P7/04
Inventor 苏衡李海燕王加高夏雨
Owner 苏衡
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