An insecticide with Artemisia argyi Levl.et vant and Atractylodes lancea extract as active components

A technology of Artemisia argyi leaf extract and Atractylodes atractylodes extract, applied in the direction of insecticide, biocide, animal repellent, etc., can solve the problems of lack of commercial value, poor insecticidal effect and high price of pure Artemisia argyi leaf extract, and achieve Good insect repellent effect

Inactive Publication Date: 2007-08-01
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The extracts of Artemisia argyi and Cangzhu each have insecticidal effect, but there are defects in actual use, namely: the insecticidal effect of pure Artem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take some Artemisia argyi leaves, according to the supercritical carbon dioxide extraction method, the conditions are extraction pressure 16MP, extraction temperature 35°C, CO 2 The flow rate is 20kg / h, and the extraction time is 80 minutes. After the extract is dewaxed, the volatile oil of Artemisia argyi is obtained.

[0025] Take some Atractylodes atractylodes and extract them according to the ethanol extraction method to obtain Atractylodes atractylodes volatile oil.

[0026] After compounding the above-mentioned Artemisia argyi leaf oil and Atractylodes atractylodes oil 1:4 (v / v), add tetradecane, the ratio of oil and tetradecane is 1:99, stir and mix thoroughly to obtain an emulsifiable concentrate with insecticidal activity.

Embodiment 2

[0028] Take some Atractylodes atractylodes, according to the supercritical carbon dioxide extraction method, the conditions are extraction pressure 16MP, extraction temperature 35°C, CO 2 The flow rate is 20kg / h, the extraction time is 80 minutes, and the obtained extract is dewaxed to obtain the volatile oil of Atractylodes atractylodes.

[0029] Take some Artemisia argyi leaves, and extract them according to the ethanol extraction method to obtain the volatile oil of Artemisia argyi leaves.

[0030] After compounding the above-mentioned Artemisia argyi leaf oil and Atractylodes atractylodes oil 1:4 (v / v), add tetradecane, the ratio of oil and tetradecane is 1:99, stir and mix thoroughly to obtain an emulsifiable concentrate with insecticidal activity.

Embodiment 3

[0032] Take 1 part of Artemisia argyi and 4 parts of Atractylodes atractylodes, according to the supercritical carbon dioxide extraction method, the conditions are extraction pressure 16MP, extraction temperature 35 ℃, CO 2 The flow rate is 20kg / h, and the extraction time is 80 minutes. After the obtained extract is dewaxed, the volatile oil of Artemisia argyi and Atractylodes atractylodes is obtained.

[0033] Add tetradecane to the above-mentioned volatile oil, the ratio of oil and tetradecane is 1:99, stir and mix thoroughly to obtain the emulsifiable concentrate containing insecticidal activity.

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PUM

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Abstract

The invention to insecticide with folium and atractylodes extract as active ingredients. The insecticide is composed of folium and atractylodes extract and organic dissolvent. The volume ratio of folium extract and atractylodes extract is 1:(2-10). The concentration of the mixture of folium and atractylodes extract in the organic dissolvent is 0.3v/v%-12.0v/v%. The insecticide has a kill effect over national standard B level, evident dose dependence, and good helminthicide.

Description

technical field [0001] The present invention relates to an insecticide, in particular to an insecticide with the extracts of Artemisia argyi and Atractylodes atractylodes as active components. Background technique [0002] Artemisia argyi (scientific name: Artemisia argyi), Compositae, perennial herb. Its leaves (Ai Ye) are used as medicine, and the main functions are: dispelling cold and relieving pain, warming the meridians to stop bleeding. Atractylodes is the rhizome of Atractylodes lancea (Thunb)] or Atractylodeschinensis (DC) Koide of Compositae. It is mainly used for abdominal fullness, diarrhea and loss of appetite (Chinese Pharmacopoeia, Part I, Chemical Industry Press, 2000). [0003] The extracts of Artemisia argyi and Cangzhu each have insecticidal effect, but there are defects in actual use, namely: the insecticidal effect of pure Artemisia argyi extract is not good; and the insecticidal effect of pure Atractylodes atractylodes extract is good, but its price i...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01P7/04A01N65/12
Inventor 袁慧慧蓝闽波翟大宇何正有郁荣华赵红莉戚冯展
Owner EAST CHINA UNIV OF SCI & TECH
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