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Euphorbia-one pesticide and preparing method thereof

A technology of wolfmetone and insecticide, applied in the field of wolfmetone insecticide and its preparation, can solve the problems of complex content, difficult insecticidal spectrum, complex components, etc., and achieve easy large-scale production, raw materials The effect of wide sources and simple process

Inactive Publication Date: 2003-03-26
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology uses crude plant extracts to form the original pesticide. Although the preparation method is cheap and the process is simple, the pesticides prepared by this technology are complex in composition, the active ingredients of the drug are difficult to detect, and the drug effect is not easy to stabilize.
More importantly, the crude extract contains substances that are highly toxic to humans and animals; the inclusions are too complex, and it is not easy to study the mechanism of action of its main insecticidal active substances, and it is not easy to study its relationship with other insecticides based on its mechanism of action. Research on the mutual cooperation of pesticides to further improve the efficacy or expand their insecticidal spectrum

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The raw materials of Daphne chamaejasme are cleaned, crushed, soaked in ethanol, refluxed and extracted, and then extracted with acetone for many times, and then concentrated into a liquid extract of chamaejasmene extract. Motherwort alkaloid 2.5kg; organic solvent 44kg, add in the mixing kettle that has stirrer and thermometer, at temperature 70 ℃, mix under agitation 2.5 hours, add surfactant 15kg, tea saponin 17kg, sodium benzoate 1kg, cyclic 10kg of oxidized vegetable oil, 0.8kg of azone, and 0.2kg of a pH regulator were mixed and stirred evenly to obtain a lumazone insecticide product.

Embodiment 2

[0043] The raw materials of Daphne chamaejasme are cleaned, crushed, soaked in methanol, refluxed and extracted, and then extracted several times with petroleum ether, and concentrated to a liquid extract of chamaejasmene extract. In a mixing tank with a stirrer and a thermometer, mix for 1 hour at a temperature of 50°C under stirring, add 8kg of surfactant, 9kg of tea saponin, 1kg of sodium benzoate, 5kg of epoxidized vegetable oil, 1.5kg of azone, and PH Regulator 0.2kg, mix and stir evenly, obtain lumazone insecticide product.

Embodiment 3

[0045] The raw material of Daphne chamaejasme is cleaned, pulverized, soaked in a mixed liquid of methanol and ethanol, refluxed and extracted, and then extracted several times with n-hexane, concentrated to a liquid extract of chamaemelin extract, 15kg of chamaemelin, Azadirachtin 0.5kg, motherwort alkaloid 1.8kg; organic solvent 45kg, add to the mixing kettle with stirrer and thermometer, at a temperature of 80 ℃, mix under stirring for 4 hours, add surfactant 23kg, tea saponin 9.5 kg, sodium benzoate 1kg, epoxidized vegetable oil 8kg, azone 1kg, PH regulator 0.2kg, mix and stir, obtain lumazone insecticide product.

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PUM

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Abstract

The preparation method of stellera chamaejasme ketone pesticide includes: cleaning stellera chamaejasma, pulverizing, soaking in organic solvent, extracting for several times, concentrating to obtain stellera chamaejasme ketone extract, its extracting temp. is 30-95 deg.c and time is 2-10 hr., then placing 10-55 portions of said extract, 0-5 portions of nimbin, 0-12 portions of said extract, 0-5 portions of nimbin, 0-12 portions of leonurus alkaloid and 15-55 portions of organic solvent into the mixing still with stirring device and thermometer, stirring at 40-100 deg.c and mixing for 0.5-5 hr., adding surfactant 8-16 portions, theasaponin 2-30 portions, azone 0.2-2 portions, stabilizing agent 3-11 portions, preservative 0.5-1.5 portions and pH regulating agent 0.1-0.2 portion, and continuously stirring and uniformly mixing.

Description

1. Technical field [0001] The invention relates to a lumeminone insecticide and a preparation method thereof, belonging to the field of botanical biological agricultural chemicals. 2. Background technology [0002] my country has used the characteristics of plants, that is, to use some of its ingredients to prevent and control crop diseases and insect pests. According to records, plant pesticides, such as croton, have been used to control pests as early as 1800 years ago. Among the 1892 kinds of medicines described in the "Compendium of Materia Medica" compiled by Li Shizhen in the 24th year of Wanli in the Ming Dynasty (1596), it was mentioned that plants such as Baibu, veratrum, chamaejasma, and Sophora flavescens have insecticidal properties. [0003] It can be seen from the relevant literature review and analysis that at present, although the research on the use of Daphne chamaejasma as a biological pesticide has been reported, it is mainly a simple application. For ex...

Claims

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Application Information

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IPC IPC(8): A01N43/90
Inventor 刘世贵高平潘为高
Owner SICHUAN UNIV
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