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Flubendiamide and azadirachtin compound pesticide microemulsion as well as preparation method thereof

A technology of flubendiamide and azadirachtin, which is applied in the field of compound insecticidal microemulsions of flubendiamide and azadirachtin and its preparation, which is suitable for large-scale popularization and application, simple preparation process, and good storage stability Effect

Inactive Publication Date: 2011-02-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the flubendiamide and azadirachtin products used in the existing pesticide market have deficiencies. The azadirachtin insecticides are mainly emulsifiable concentrates, and the formulations of flubendiamide insecticide products are mainly suspension concentrates and emulsifiable concentrates. Preparations often use toxic organic solvents such as xylene; no report has been found on the compound microemulsion of flubendiamide and azadirachtin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: take by weighing flubendiamide 65.0kg and azadirachtin 0.1kg, then with styrylphenol polyoxyethylene ether 5.0kg, octyl phosphate sodium salt 3.0kg, butyl glycidyl ether 5.0kg and B 3.5 kg of diol was stirred and mixed evenly in a high-speed shearing machine, and then 18.4 kg of deionized water was added, stirred and mixed evenly, left to stand for 10 hours, heated to 55° C., and fully stirred to make a microemulsion. The preparation was diluted with water to carry out the field drug efficacy test. The control effects of its 4800 times solution on the vegetable pest Plutella xylostella on the 7th day and 14th day after the application were 87.5%, 84.1%, respectively, and on the 5th and 10th day after the application of the beet armyworm. The control effects on rice white-backed planthopper were 88.1% and 85.2%, respectively, and the control effects on rice white-backed planthopper were 90.0% and 88.8% on the 6th day and 12th day after application.

Embodiment 2

[0022] Embodiment 2: take flubendiamide 44.0kg and azadirachtin 0.6kg, then with styrylphenol polyoxyethylene ether 2.0kg, nonylphenol polyoxyethylene ether 2.5kg, natural carboxylate 1.5kg, octane 2.0kg of sodium phosphate ester, 5.0kg of butyl glycidyl ether and 5.5kg of ethylene glycol were stirred and mixed in a high-speed shearing machine, and then 36.9kg of deionized water was added, stirred and mixed evenly, left to stand for 11 hours, and heated To 52 ℃, after fully stirring, it can be made into microemulsion. The preparation was diluted with water to carry out the field drug efficacy test, and its 4800 times solution had 89.5% and 86.1% respectively on the 7th day and 14th day after the application of the vegetable pest Plutella xylostella. The control effects on rice white-backed planthopper were 89.0% and 86.7%, respectively, and the control effects on rice white-backed planthopper were 91.2% and 89.3% on the 6th day and 12th day after application.

Embodiment 3

[0023] Embodiment 3: Take by weighing flubendiamide 0.1kg and azadirachtin 25.0kg, then with 6.0kg of styrylphenol polyoxyethylene ether, 6.5kg of nonylphenol polyoxyethylene ether, di-octyl sulfosuccinate 7.0kg of sodium salt, 8.0kg of azone, 6.0kg of butyl glycidyl ether and 6.0kg of acetone were stirred and mixed evenly in a high-speed shearing machine, and then 35.4kg of deionized water was added, stirred and mixed evenly, stood for 8 hours, and heated To 56 ℃, after fully stirring, it can be made into microemulsion. The preparation was diluted with water to carry out the field drug efficacy test, and its 3500-fold liquid had 93.5% and 90.3% control effects on the vegetable pest Plutella xylostella on the 7th day and 14th day after the application, and 93.5% and 90.3% on the 5th and 10th day after the application of the beet armyworm. The control effects on rice white-backed planthopper were 92.3% and 89.2%, respectively, and the control effects on rice white-backed planth...

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Abstract

The invention discloses a flubendiamide and azadirachtin compound pesticide microemulsion as well as a preparation method thereof. The flubendiamide and azadirachtin compound pesticide microemulsion comprises the following components in percentage by weight: 0.1-65% of flubendiamide, 0.1-25% of azadirachtin, 3-22% of emulsifier, 2-16% of penetrant, 1-15% of stabilizer, 2-20% of complex solubilizer and 22-72% of deionized water. The preparation method comprises the steps of firstly mixing flubendiamide, azadirachtin, emulsifier, penetrant, stabilizer and solubilizer in a high-speed shearing machine and evenly stirring, adding deionized water and evenly stirring, then standing for 4 to 13 hours, heating to 43 to 60 DEG C and stirring completely. The microemulsion has remarkable effect of preventing and treating beet armyworm, vegetable-crop pest-insect plutella xylostella and rice sogatella furcifera, in addition, water is used as the matrix in the invention, which overcomes the defect that toxic solvent, such as dimethylbenzene and the like, are used in the missible oil preparation, is safe to the environment, man, livestock and other beneficial organisms without easily generating chemical injury.

Description

technical field [0001] The invention relates to insecticide compounding technology, in particular to a compound insecticidal microemulsion of flubendiamide and azadirachtin and a preparation method thereof. Background technique [0002] In recent years, in countries such as the United States, restrictions on the use of organic solvents in pesticide formulations have become increasingly stringent, and xylene has a tendency to be banned in some countries. Therefore, it has become the general trend of pesticide development to develop new liquid preparations with strong safety, green environmental protection and low price to reduce or eliminate these harmful organic solvents. Among them, water-based is one of the leading directions for the development of pesticide formulations, and new pesticide formulations will add new features to pesticides, which can give full play to the functional characteristics of the original drug itself, overcome and make up for the shortcomings of the...

Claims

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Application Information

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IPC IPC(8): A01P7/04A01N43/90A01N25/04A01N41/10
Inventor 李新伟何道航
Owner SOUTH CHINA UNIV OF TECH
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