Chlorantraniliprole and natural pyrethrin compound suspension and preparation method thereof

A technology of chlorantraniliprole and natural pyrethrin, applied in the field of pesticides, can solve problems such as no chlorantraniliprole, and achieve the effects of low production cost, wide pest control spectrum and little environmental pollution

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 chlorantraniliprole and natural pyrethrins as a suspension

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 0.5kg of chlorantraniliprole, 18.0kg of natural pyrethrins, 2.0kg of sodium lignosulfonate, 3.0kg of alkylphenol polyoxyethylene ether formaldehyde condensate sodium sulfate, 1.2kg of xanthan gum, and 4.8kg of ethylene glycol , formaldehyde 0.4kg, polyether-siloxane defoamer 0.6kg and distilled water 69.5kg in a high-shear dispersing emulsifier, dispersed at 3100r / min for 20min, and then passed through a sand mill with a rotating speed of 1500r / min Grind for 3 hours and sieve to obtain a compound suspension concentrate of chlorantraniliprole and natural pyrethrins with a particle size of 0.5-5 μm and a content of 18.5%. According to the pesticide field efficacy test guidelines for pesticide application and biological activity statistics, using the preparation 2000 times liquid for field efficacy tests, the control effects on cabbage spodoptera litura on the 5th day and 10th day after application were 92.5% and 93.8% respectively .

Embodiment 2

[0028] Weigh 32.0kg of chlorantraniliprole, 0.1kg of natural pyrethrins, 6.0kg of sodium methylenebismethyl naphthalenesulfonate, 1.0kg of sodium alkylsulfonate, 1.8kg of gum arabic, 2.0kg of propylene glycol, and 0.5kg of sodium benzoate , polyether-siloxane defoamer 0.4kg and deionized water 56.2kg in a high-shear dispersing emulsifier, dispersed at 2800r / min for 25min, and then sanded for 2.5 minutes with a sand mill at 1500r / min h, sieving to obtain a compound suspension concentrate of chlorantraniliprole and natural pyrethrins with a particle size of 0.5-5 μm and a content of 32.1%. According to the pesticide field efficacy test guidelines for pesticide application and biological activity statistics, 3000 times of the preparation was used for field efficacy tests, and the control effects on cabbage beet armyworm were 93.1% and 90.9% on the 6th day and 12th day after application. .

Embodiment 3

[0030] Weigh 0.5kg of chlorantraniliprole, 0.1kg of natural pyrethrin, 1.8kg of alkylphenol polyoxyethylene ether, 1.2kg of sorbitol polyoxyethylene ether, 0.5kg of xanthan gum, 5.5kg of ethylene glycol, and 0.1kg of formaldehyde , polyether-siloxane defoamer 0.3kg and distilled water 90.0kg in a high-shear dispersing emulsifier, dispersed at 2000r / min for 45min, then sanded for 2h with a sand mill at 1500r / min, sieved A compound suspension concentrate with a particle size of 0.5-5 μm and a content of 0.6% of chlorantraniliprole and natural pyrethrins was obtained. According to the field efficacy test guidelines of pesticides, pesticide application and biological activity statistics were carried out, and 2500 times of the preparation was used for field efficacy tests, and the control effects on soybean Spodoptera litura were 82.5% and 80.7% on the 7th day and 14th day after application. .

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PUM

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Abstract

The invention discloses a chlorantraniliprole and natural pyrethrin compound suspension and a preparation method thereof. The chlorantraniliprole and natural pyrethrin compound suspension comprises the following raw materials in percentage by weight: 0.5-32% of chlorantraniliprole, 0.1-18% of natural pyrethrin, 1-6% of dispersant, 1-5% of wetting agent, 0.1-5% of thickening agent, 2-10% of anti-freezing agent, 0.1-1% of preservative, 0.1-0.8% of defoaming agent and 40.3-90.0% of water; and the preparation method comprises the following steps: adding the chlorantraniliprole, the natural pyrethrin, the dispersant, the wetting agent, the thickening agent, the anti-freezing agent, the preservative, the defoaming agent and the water into a high-shearing homogeneous emulsifier according to the mixture ratio, dispersing till uniformity, and further performing sand grinding and screening. The suspension disclosed by the invention is good in effects, green and environment-friendly; the preparation method is simple and feasible, and equipment investment is low; and a large quantity of organic solvent is not required, so that not only is cost reduced, but also the stimulus to an operator and the environmental pollution caused by the organic solvent can be reduced.

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 chlorantraniliprole and natural pyrethrins 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 f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/12A01N43/56A01N25/04A01P7/04
Inventor 何道航刘仙平
Owner SOUTH CHINA UNIV OF TECH
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