Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing botanical insecticide based on stellera chamaejasme roots

A plant-derived insecticide, the technology of Rhizoma Radix, applied in the directions of botanical equipment and methods, nematicides, plant growth regulators, etc., can solve the problems of high toxicity, strong root toxicity, and easy eating by livestock. Achieve the effect of curbing damage, good nematode killing effect, and improving extraction speed

Inactive Publication Date: 2018-10-16
HANGZHOU NORMAL UNIV QIANJIANG COLLEGE
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Daphne chamaejasma is highly toxic and the whole plant is poisonous, the root is more toxic than other parts, livestock are easy to eat by mistake and cause food poisoning

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing botanical insecticide based on stellera chamaejasme roots
  • Method for preparing botanical insecticide based on stellera chamaejasme roots

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The extractant is ethanol.

Embodiment 2

[0038] The extractant is petroleum ether.

Embodiment 3

[0040] The extractant is chloroform.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing a botanical insecticide based on stellera chamaejasme roots. Root-knot nematode is a highly specific omnivorous plant pathogenic nematode. The method comprises the following steps: I, crushing and drying stellera chamaejasme roots; II, soaking the obtained powder into ethanol; III, carrying out ultrasonic extraction on a soaking liquid for three times; IV, carrying out vacuum filtration and concentration on an extract; V, dissolving the extract in an ethanol solution so as to obtain a precursor extract; VI, continuously extracting the precursor extract obtained in the step V by using an extraction agent at the room temperature so as to obtain an extract liquid, and carrying out vacuum filtration concentration on the extract liquid so as to obtain a target extract; VII, drying the target extract. By adopting the method, the extraction speed of the stellera chamaejasme root extract is increased, and extraction can be completed within 13 hours. The botanical insecticide has a good nematode killing effect.

Description

technical field [0001] The invention belongs to the technical field of biological source insecticides, and in particular relates to a method for preparing plant source insecticides based on Daphne chamaejasma root. Background technique [0002] Stellera chamaejasme (Stellera chamaejasme L) refers to the perennial herbaceous plant of Stellera chamaejasme genus. Daphne chamaejasma usually grows on sunny slopes and alpine grasslands at an altitude of 2000-4200m, and is widely distributed in southwest, north, northeast and northwest China. Daphne chamaejasma is highly toxic and the whole plant is poisonous, and the root is more toxic than other parts. Livestock are easy to eat it by mistake and cause food poisoning. Chamaejas chamaejas has a large biomass and obvious population advantages. It has an advantage in competition with other grassland plants and can easily inhibit the growth of pastures. Now it is spreading wildly in northern grasslands, causing pastures to degrade ye...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01P5/00
CPCA01N65/00A01N65/08
Inventor 沈烨卢剑波
Owner HANGZHOU NORMAL UNIV QIANJIANG COLLEGE