Flubendiamide-rotenone compound suspending agent and preparation method thereof

A technology of flubendiamide and rotenone, which is applied in the field of pesticides, can solve problems such as the compounding of flubendiamide and rotenone, and achieve the effects of low production cost, low environmental pollution, and a wide spectrum of pest control

Inactive Publication Date: 2012-07-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the compounding of flubendiamide and rotenone as a suspension

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 0.2kg of flubendiamide, 15.0kg of rotenone, 3.0kg of calcium lignosulfonate, 1.0kg of sodium alkylbenzenesulfonate, 1.4kg of polyvinyl alcohol, 4.6kg of urea, 0.8kg of formaldehyde, polyether-siloxane Disperse 0.2kg of defoamer and 73.8kg of distilled water in a high-shear dispersing emulsifier, disperse at a speed of 2000r / min for 40min, and then pass through a sand mill with a speed of 1500r / min for 2h, and sieve to obtain a particle size of 0.5~ 5 μm, content of 15.2% flubendiamide and rotenone compound suspension. According to the field efficacy test guidelines of pesticides, the application and biological activity statistics were carried out, and the field efficacy test was carried out with 2000 times of the preparation, and the control effects on cotton beet armyworm were 92.2% and 94.7% on the 5th day and 10th day after application. .

Embodiment 2

[0032] Weigh 35.0kg of flubendiamide, 0.5kg of rotenone, 3.5kg of calcium alkylnaphthalene sulfonate, 1.5kg of calcium alkylsulfonate, 1.2kg of carboxymethyl cellulose, 3.8kg of propylene glycol, 0.7kg of sodium salicylate, poly 0.3kg of ether-siloxane defoamer and 53.5kg of deionized water were dispersed in a high-shear dispersing emulsifier at a speed of 2800r / min for 35min, and then sanded for 2.5h by a sand mill with a speed of 1400r / min. The compound suspending agent of flubendiamide and rotenone with a particle size of 0.5-5 μm and a content of 35.5% was obtained by sieving. According to the pesticide field efficacy test guidelines for pesticide application and biological activity statistics, 4000 times of the preparation was used for field efficacy tests, and the control effects on cabbage beet armyworm were 91.9% and 93.5% on the 6th day and 12th day after application. .

Embodiment 3

[0034] Weigh 0.2kg of flubendiamide, 0.5kg of rotenone, 1.2kg of alkylphenol polyoxyethylene ether, 1.8kg of sorbitol polyoxyethylene ether, 2.0kg of polyvinyl alcohol, 5.2kg of urea, 0.1kg of formaldehyde, polyether-silicon 0.4kg of oxane defoamer and 88.6kg of distilled water were dispersed in a high-shear dispersing emulsifier for 45 minutes at a speed of 2000r / min, and then sanded for 1.5 hours by a sand mill with a speed of 1500r / min, and the particle size was obtained by sieving 0.5-5μm, content of 0.7% flubendiamide and rotenone compound suspending agent. According to the field efficacy test guidelines of pesticides, pesticide application and biological activity statistics were carried out, and the field efficacy test was carried out with 1200 times of the preparation, and the control effects on cabbage beet armyworm were 85.5% and 82.8% on the 7th and 14th days after application. .

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PUM

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Abstract

The invention discloses a flubendiamide-rotenone compound suspending agent and a preparation method thereof. The compound suspending agent consists of flubendiamide, rotenone, a dispersing agent, a wetting agent, a thickener, an anti-freezing agent, a preservative, a defoaming agent and water. The preparation method of the compound suspending agent comprises the following steps of: adding the flubendiamide, rotenone, dispersing agent, wetting agent, thickener, anti-freezing agent, preservative, defoaming agent and water into a high-shear dispersing emulsifying machine; dispersing uniformly; and grinding and sieving to obtain the flubendiamide-rotenone compound suspending agent of which the grain diameter is 0.5-5 mum. The compound suspending agent has a wide pest prevention and control spectrum, and the drug resistance of pests is avoided; the preparation process is simple, and is low in production cost; and a large quantity of organic solvents are not required, the cost is lowered, and the stimulation of organic solvents to operators and environmental pollution caused by the organic solvents are lowered.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a compounded pesticide, in particular to a compounded suspending agent of flubendiamide and rotenone and a preparation method thereof. Background technique [0002] Chemical pesticides contain a large amount of organic solvents, which have brought serious pollution to the natural environment while making great contributions to agricultural harvests. With the improvement of environmental protection laws and regulations, the call for reducing pesticide pollution is becoming stronger and stronger. It has become the general trend of pesticide development to develop new liquid preparations with high safety, green environmental protection and low price to reduce or eliminate the hazards of organic solvents. Among them, water-based is one of the leading directions for the development of pesticide formulations. This new type of pesticide formulation will also add new features to the p...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N41/10A01N25/04A01P7/04
Inventor 何道航刘仙平
Owner SOUTH CHINA UNIV OF TECH
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