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Traditional Chinese medicine extract having Ditylenchus destructor Thorne resisting activity and application thereof

A stem nematode and anti-rot technology, which is applied in the field of preparing extracts with anti-rot D. nematode activity, can solve problems such as environmental pollution, high toxicity and high residue, and achieves the effect of important environmental protection significance and economic value

Inactive Publication Date: 2016-01-20
NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sweet potato production areas in my country often use Shennongdan, methimenphos, keshindan and other agents to prevent and control D. destructor. Although some effects have been achieved in the early stage of control, due to the high toxicity and high residue of these agents, the safety is low and serious Environmental pollution; in addition, the long-term and heavy use of these agents has caused nematodes to develop resistance to pesticides, making them more difficult to control

Method used

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  • Traditional Chinese medicine extract having Ditylenchus destructor Thorne resisting activity and application thereof
  • Traditional Chinese medicine extract having Ditylenchus destructor Thorne resisting activity and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of Chinese medicine extract with activity of resisting stem nematode rot, it is prepared by the following method: take fresh Angelica sinensis stems and leaves to dry naturally, pulverize, sieve, obtain Angelica sinensis dry stems and leaves, take Angelica sinensis dry stems and leaves, use 8 times the amount of petroleum ether was refluxed and extracted 3 times for 2 hours each time to obtain the extract, concentrated and dried to obtain a traditional Chinese medicine extract with anti-Dylodes rot activity.

Embodiment 2

[0031] A traditional Chinese medicine extract with anti-dylodes destructor activity, which is prepared by the following method: take fresh angelica stems and leaves and dry them at a low temperature of 60°C, pulverize and sieve to obtain the dried stems and leaves of angelica sinensis, and take the dried stems and leaves of angelica sinensis The leaves were continuously refluxed twice with 12-fold amount of n-butanol for 3 hours each time to obtain the extract, concentrated and dried to obtain a traditional Chinese medicine extract with anti-Dylodes rot activity.

Embodiment 3

[0033] A traditional Chinese medicine extract with anti-dylodes destructor activity, which is prepared by the following method: take fresh angelica stems and leaves and dry them at a low temperature of 60°C, pulverize and sieve to obtain the dried stems and leaves of angelica sinensis, and take the dried stems and leaves of angelica sinensis The leaves were ultrasonically extracted twice with 10 times the amount of ethyl acetate for 3 hours each time to obtain the extract, which was concentrated and dried to obtain a traditional Chinese medicine extract with anti-Dylodes rot activity.

[0034] Using the traditional Chinese medicine extracts prepared in Examples 1-3 of the present invention with anti-dylodes destructor activity, adding additives to make agricultural preparations such as emulsifiable concentrates, suspension concentrates, wettable powders, granules, aqueous solutions, mother liquors, and mother powders.

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Abstract

The invention discloses a traditional Chinese medicine extract having the Ditylenchus destructor Thorne resisting activity and application thereof. Fresh Chinese angelica stems and leaves are taken and naturally dried or are dried at the low temperature of 60 DEG C and then are smashed and screened to obtain dried Chinese angelica stems and leaves, the Chinese angelica stems and leaves are taken to perform extraction by using petroleum ether, ethyl acetate, n-butanol or water the obtain an extract, and the extract is concentrated and dried to obtain the traditional Chinese medicine extract having the Ditylenchus destructor Thorne resisting activity. The traditional Chinese medicine extract uses the waste Chinese angelica stems and leaves as a raw material, the biological activity of the traditional Chinese medicine extract is screened through a large number of experiments, and the traditional Chinese medicine extract having very good Ditylenchus destructor Thorne resisting activity is obtained through optimization. The waste Chinese angelica stems and leaves are fully utilized and are turned into wealth, the prepared extract can be used for preparing green environmentally-friendly high-efficiency low-toxicity biological pesticides, has important environmental protection significance and economic value and is worthy of popularization and application.

Description

technical field [0001] The invention relates to a traditional Chinese medicine extract, in particular to an extract with anti-dylodes nematode activity prepared by using angelica stems and leaves as raw materials. Background technique [0002] With the rapid development of my country's large Chinese medicine industry and the continuous advancement of the health service industry, as well as the international market's favor for products derived from natural resources, the production scale of traditional Chinese medicine and natural medicinal biological resource raw materials has been continuously expanded, and the resource economy industry chain has been improved. Extend and expand. At the same time, a huge amount of Chinese medicine waste is also produced in the process of industrialization of Chinese medicine resources. In recent years, the production area of ​​traditional Chinese medicine and natural medicinal biological resources in my country has exceeded 2.40×106hm 2 , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/10A01P5/00
Inventor 江曙段金廒钱大玮杨念云严辉
Owner NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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