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Flubendiamide and azadirachtin compounded water dispersible granules and preparation method thereof

A technology of flubendiamide and azadirachtin, which is applied in the field of compound water-dispersible granules of flubendiamide and azadirachtin and its preparation, can solve the problems of single dosage form and unfavorable environment, and achieve high suspension rate and beneficial biological effects. Safe and good dispersion 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] However, azadirachtin insecticides are mainly emulsifiable concentrates, while the formulation of flubendiamide insecticide products is mainly a suspension concentrate. The existing product formulations are relatively simple, and the emulsifiable concentrate formulations use toxic organic solvents such as xylene, which is not good for the environment.
At present, the compounding of flubendiamide and azadirachtin into water-dispersible granules has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: take by weighing flubendiamide 0.1kg and azadirachtin 5.0kg, then with styrene phenol polyoxyethylene sodium sulfate 12.0kg, alkyl sodium sulfate 5.0kg, ammonium sulfate 20.0kg, sodium carboxymethylcellulose 0.1kg, 0.2kg of citric acid, 20.0kg of mica powder and 37.6kg of kaolin, after mixing evenly, pulverize into mother powder through ultra-fine jet mill, add 5.0kg of deionized water to mother powder and mix evenly, granulate, dry, After sieving, it is packaged after sampling and analysis, and then the compound water-dispersible granules of flubendiamide and azadirachtin are made. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The preparation was diluted with water to carry out the field drug efficacy test, and its 1500-fold liquid had 87.5% and 84.1% control effects on cabbage aphids on the 6th and ...

Embodiment 2

[0031] Embodiment 2: take by weighing flubendiamide 0.5kg and azadirachtin 15.0kg, then with sodium lignosulfonate 15.0kg, alkylnaphthalene sulfonate 5.0kg, bentonite 17.0kg, sodium polyacrylate 0.2kg, hydrogen sulfate Sodium 0.1kg, diatomaceous earth 25.0kg and calcium carbonate 22.2kg, after mixing evenly, pulverize into mother powder by ultra-fine jet mill, add mother powder to 6.5kg deionized water and mix evenly, granulate, dry, sieve After sampling, analysis and qualified packaging, the compound water-dispersible granules of flubendiamide and azadirachtin are made. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The formulation was diluted with water to carry out the field drug efficacy test, and its 1500 times solution had 90.2% and 92.3% respectively on the 6th day and 12th day after the application of the drug agai...

Embodiment 3

[0032] Embodiment 3: take by weighing flubendiamide 65.0kg and azadirachtin 15.0kg, then with sodium lignosulfonate 4.0kg, benzyl naphthalene sulfonate 2.5kg, polyethylene glycol 3.0kg, dextrin 0.2kg, Sodium wood alcohol 0.3kg and bentonite 10.0kg. After mixing evenly, it is pulverized into mother powder by an ultra-fine jet mill, and the mother powder is mixed with 7.0kg of deionized water evenly, granulated, dried, sieved, and packaged after sampling and analysis to obtain flubendiamide and printed matter. Neem compound water dispersible granules. After testing, the water content is less than 2%, the long-lasting foaming property (1min) is less than 7ml, and the wettability is less than 40s, and the accelerated heat storage stability is qualified. The preparation was diluted with water to carry out the field drug efficacy test, and its 3000-fold solution had 91.5% and 92.8% control effects on cabbage aphids on the 6th and 12th days after the application, and the control eff...

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PUM

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Abstract

The invention discloses flubendiamide and azadirachtin compounded water dispersible granules and a preparation method thereof. The formula consists of the following raw materials in percentage by weight: 0.1 to 65 percent of flubendiamide, 0.1 to 15 percent of azadirachtin, 3 to 25 percent of dispersing agent, 3 to 5 percent of wetting agent, 1 to 25 percent of disintegrating agent, 0.1 to 0.5 percent of binder, 0.1 to 0.5 percent of stabilizing agent, 10 to 60 percent of carrier and 1 to 10 percent of deionized water. The preparation method comprises the following steps of: weighing according to the proportion, and uniformly mixing; adding active ingredients, aids and the carrier; and performing superfine crushing on the raw materials in the formula, and granulating in an extrusion mode. The flubendiamide and azadirachtin compounded water dispersible granules overcome the defect that a missible oil preparation harms environment, have the advantages of good wettability, quick disintegration, good dispersability, high suspensibility, good hot storage stability and safety for human, animals and environment and are easy to use; and the preparation process is simple and suitable for industrial production and large-scale promotion and application.

Description

technical field [0001] The invention relates to a pesticide preparation, in particular to a water-dispersible granule compounded with flubendiamide and azadirachtin and a preparation method thereof. Background technique [0002] Water-dispersible granules are a new type of pesticide formulation developed in Europe and the United States in the 1980s. The International Federation of Pesticide Industry Associations (GIFAR) defines it as: granules used after disintegration and dispersion in water. Water-dispersible granules are mainly composed of active ingredients of pesticides, dispersants, wetting agents, binders, disintegrants and fillers, etc., with a particle size of 200μm-5mm, which will quickly disintegrate and disperse after entering water to form a high-suspension dispersion system; Water-dispersible granules cause little or no dust (when in use), thereby reducing toxicity during operation; water-dispersible granules do not flow, making metering more convenient and eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/14A01P7/04A01N43/90A01N41/10
Inventor 何道航李新伟周立新
Owner SOUTH CHINA UNIV OF TECH
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