Botanical fungiticide prepared by carrying out combined extraction on Chinese herbal medicines

A plant-derived fungicide and Chinese herbal medicine technology, applied in the field of pesticides, can solve the problems of insignificant bactericidal effect, single medicinal component, unreasonable compatibility, etc., and achieve the effect of significant bactericidal effect, scientific and reasonable compatibility, and good broad-spectrum.

Active Publication Date: 2014-06-25
CHIFENG SHUAIQI PESTICIDES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The botanical fungicides in the prior art are all formulated from one or more Chinese herbal medicine extracts and auxiliary agents. The disadvantages are often single medicinal ingredients, poor broad-spectrum, or unreasonable compatibility, and the bactericidal effect is not significant.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: A plant-derived bactericide obtained by combining Chinese herbal medicines. Its active ingredients are combined and extracted from Chinese herbal medicines in the following parts by weight: 25 parts of Sophora flavescens, 38 parts of dandelion, 65 parts of chamaejasme, and 28 parts of Artemisia northeast , 18 copies of gall. The Chinese herbal medicines of various flavors were dried and crushed, soaked in ethanol for 5 hours, and extracted 5 times, each time of 50 minutes, to remove the dregs, the extract was placed in a rotary evaporator for vacuum concentration, and the concentrated liquid was added with fatty alcohol The pesticide adjuvant composed of oxyethylene ether and sodium benzoate, and the liquid preparation obtained by uniformly stirring is the plant-derived fungicide obtained by combining Chinese herbal medicines of the present invention. Among them, the weight percentage of the pesticide adjuvant in the liquid preparation is 5%, and the weight ra...

Embodiment 2

[0018] Example 2: A plant-derived fungicide obtained by combining Chinese herbal medicines. Its active ingredients are combined and extracted from Chinese herbal medicines in the following parts by weight: 22 parts of Sophora flavescens, 45 parts of dandelion, 60 parts of chamaejasme, and 35 parts of Artemisia northeast , 15 copies of gall. The Chinese herbal medicines are dried and crushed, soaked in ethanol for 3 hours, and extracted 6 times, each time is 60 minutes, to remove the dregs, the extract is concentrated in a rotary evaporator, and nonylphenol is added to the concentrated solution The pesticide adjuvant composed of polyoxyethylene ether and sodium benzoate, and the liquid preparation prepared by uniformly stirring is the plant-derived fungicide obtained by combining Chinese herbal medicines of the present invention. Among them, the weight percentage of the pesticide adjuvant in the liquid formulation is 8%, and the weight ratio of each component of the pesticide ad...

Embodiment 3

[0019] Example 3: A plant-derived fungicide obtained by combining Chinese herbal medicines. Its active ingredients are combined and extracted from Chinese herbal medicines in the following parts by weight: 28 parts of Sophora flavescens, 25 parts of dandelion, 70 parts of chamaejasme, and 25 parts of Artemisia northeast , Gallnut 25 copies. The Chinese herbal medicines were dried and crushed, soaked in ethanol for 6 hours, and then extracted 3 times. Each extraction was performed for 45 minutes to remove the dregs. The extract was concentrated in a rotary evaporator, and the concentrate was added with Tween 80 The liquid formulation prepared by mixing the pesticide adjuvant with potassium sorbate and mixing uniformly is the plant-derived fungicide of the present invention combined and extracted from the Chinese herbal medicine. Among them, the weight percentage of the pesticide adjuvant in the liquid formulation is 3%, and the weight ratio of each component of the pesticide adj...

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PUM

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Abstract

The invention discloses a botanical fungiticide prepared by carrying out combined extraction on Chinese herbal medicines. The botanical fungiticide comprises the active ingredients prepared by carrying out combined extraction on the following Chinese herbal medicines in parts by weight: 20-30 parts of sophora flavescens, 20-50 parts of dandelion, 50-80 parts of radix euphorbiae lantu, 20-40 parts of seriphidium finitum and 10-30 parts of Chinese gall; a preparation method of the botanical fungiticide comprises the steps of drying all the Chinese herbal medicines, and then grinding; soaking the ground Chinese herbal medicines into ethyl alcohol for 2-8h; carrying out cycle extraction for 2-8 times, wherein the extraction is carried out for 40-60min each time; removing the residue of the medicines, putting the extracting solution into a rotary evaporator and carrying out vacuum concentration; after the solution is concentrated to the fixed volume, feeding pesticide adjuvant with the fixed volume, and evenly stirring to obtain the botanical fungiticide. The botanical fungiticide has the characteristics of being stable in preparation, remarkable in sterilizing effect, good in broad spectrum property and safe for people and livestock.

Description

Technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a plant-derived fungicide obtained by combining Chinese herbal medicines. Background technique [0002] Plant-derived pesticides refer to pesticide preparations prepared from plants and plant extracts used to prevent and control pests and diseases as active ingredients. It has insecticidal and bactericidal effects, but also has a certain fertilizer effect, no residual poison, no phytotoxicity, and no pollution. It is listed as a priority industry in the 21st century by the National Development Planning Commission and the Ministry of Science and Technology. It is recognized as an ideal green pesticide. [0003] The plant-derived fungicides in the prior art are all prepared from one or more Chinese herbal medicine extracts and auxiliary agents, and their disadvantages are often that the effective ingredients are single, the broad spectrum is poor, or the compatibility is unr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01P1/00A01P3/00A01N63/02
Inventor 郭淑琴郭宏伟杨玉刚
Owner CHIFENG SHUAIQI PESTICIDES
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