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Spinetoram and emamectin benzoate compound suspension and preparation method thereof

A technology of spinosyn and emamectin benzoate, which is applied in the field of pesticides, can solve the problems that there are no reports on the compounding of spinosad as a suspension agent, and achieve low production cost, low environmental pollution, and excellent preparation process. simple effect

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 spinosad and emamectin benzoate as a suspension

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 0.1kg of spinosad, 35.0kg of emamectin benzoate, 2.0kg of sodium lignosulfonate, 3.0kg of alkyl calcium sulfate, 0.5kg of sodium polyacrylate, 3.0kg of ethylene glycol, 0.2kg of sodium salicylate, Put 0.2kg of polyether-siloxane defoamer and 56.0kg of distilled water in a high-shear dispersing emulsifier, disperse at 2900r / min for 25min, then grind for 2h with a sand mill at 1500r / min, and sieve A compound suspension concentrate of spinosyn and emamectin emamectin with a particle size of 0.5-5 μm and a content of 35.1% was obtained. Carry out spraying and biological activity statistics according to pesticide field drug efficacy test guidelines, the preparation of the present invention is diluted 3000 times, carry out field drug effect test, the 6th day and the 12th day control effect to Plutella xylostella cabbage moth application are respectively 93.2% and 12 days. 91.5%.

Embodiment 2

[0032] Weigh 20.0kg of spinosad, 0.1kg of emamectin benzoate, 0.5kg of sodium alkylnaphthalene sulfonate, 2.0kg of calcium alkylsulfonate, 1.0kg of carboxymethyl cellulose, 0.5kg of glycerol, and potassium sorbate 0.1kg, 0.3kg of n-octanol and 75.5kg of deionized water were dispersed in a high-shear dispersing emulsifier for 35 minutes at a speed of 2500r / min, and then sanded for 2.5 hours by a sand mill with a speed of 1500r / min, and sieved A compound suspension concentrate of 0.5-5 μm in particle size and 20.1% content of spinosad and emamectin benzoate is obtained. Carry out spraying and biological activity statistics according to pesticide field drug efficacy test guidelines, the preparation of the present invention is diluted 2500 times, carry out field drug effect test, the 5th day and the 10th day control effect are respectively 90.4% and 10 days after the application of Plutella xylostella. 92.6%.

Embodiment 3

[0034] Weigh 20.0kg of spinosad, 30.0kg of emamectin benzoate, 4.0kg of fatty alcohol polyoxyethylene ether, 1.0kg of phenethylphenol polyoxyethylene ether sodium sulfate, 0.1kg of sodium polyacrylate, 2.0kg of ethylene glycol, Sodium salicylate 0.4kg, polyether-siloxane defoamer 0.5kg and distilled water 42.0kg were dispersed in a high-shear dispersing emulsifier for 45min at a speed of 2000r / min, and then sand milled at a speed of 1500r / min Machine sand milling for 2 hours, and sieving to obtain a compound suspension concentrate of spinosad and emamectin benzoate with a particle size of 0.5-5 μm and a content of 50.0%. Carry out spraying and biological activity statistics according to pesticide field efficacy test guidelines, the preparation of the present invention is diluted 4000 times, carry out field efficacy test, to the control effect of 5 days and 10 days after the cotton bollworm application is respectively 92.3% and 94.0%.

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Abstract

The invention discloses a spinetoram and emamectin benzoate compound suspension and a preparation method thereof. The spinetoram and emamectin benzoate compound suspension comprises the following components in percentage by weight: 0.1-20% of spinetoram, 0.1-35% of emamectin benzoate, 0.5-4% of dispersant, 0.5-5% of wetting agent, 0.1-4.5% of thickening agent, 0.5-5% of anti-freezing agent, 0.1-0.6% of preservative, 0.1-0.8% of defoaming agent and 42.0-83.0% of water; and the preparation method comprises the following steps: mixing the spinetoram, the emamectin benzoate, the dispersant, the wetting agent, the thickening agent, the anti-freezing agent, the preservative, the defoaming agent and the water, dispersing till uniformity and further performing sand grinding and screening. The compound suspension disclosed by the invention has a broad pest control spectrum, and pests are difficult to generate drug resistance; the preparation process is simpler and the production cost is lower; 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 spinosad and emamectin benzoate 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 ...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/22A01N25/04A01P7/04
Inventor 何道航刘仙平
Owner SOUTH CHINA UNIV OF TECH
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