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Chinese herbal medicine plant pesticide and preparation method thereof

A technology of plant pesticides and Chinese herbal medicines, which is applied in the field of pesticides, can solve the problems of not very stable performance of plant pesticides, unsatisfactory stability, short shelf life of plant pesticides, etc., and achieve the benefits of ecological environment protection, improvement of drug efficacy and comprehensive control effect , a wide range of effects

Inactive Publication Date: 2004-11-17
SHANXI ANSHUN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, the short shelf life and unstable performance of plant pesticides are also an important reason affecting the application of plant pesticides
Since plant pesticides are basically prepared directly from natural plant extraction methods, pesticides contain a large amount of organic matter and high water content, are easy to mold and deteriorate, and have a short shelf life; and the performance of the extracted plant pesticides is not good. It is very stable, and it is prone to stratification and precipitation after being placed for a period of time. The adhesion and permeability are also poor when used in the field. It is necessary to add preservatives, emulsifiers and other auxiliary components to improve its physical properties.
Even so, the stability of existing plant pesticides is still not very satisfactory, and the shelf life is also short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 17Kg of Sophora flavescens into the extraction tank, add 500Kg of 1% hydrochloric acid aqueous solution, heat up to 90 ° C for extraction for 4 hours, filter the extract and transfer it to the concentration tank, add 500Kg of 1% hydrochloric acid aqueous solution to the filter residue, and heat up to Extraction at 90° C. for 4 hours. Similarly, the extract was filtered and transferred to a concentration tank, the filter residue was discarded, the combined filtrate was neutralized to neutrality with ammonia water, and further concentrated to obtain 12Kg of Sophora flavescens extract, which was placed in a storage tank of Sophora flavescens.

[0039] Weigh 140Kg of hellebore and put it into a tank, add water and soak it until it expands, drain the water, put it into an extraction tank with a cooling reflux device, add 200Kg of 90% ethanol, boil and extract for 1 hour, and the extract is filtered and transferred to In the concentration tank, the filter residue was add...

Embodiment 2

[0079] Weigh 15Kg of Sophora flavescens into the extraction tank, add 400Kg of 1.5% aqueous sulfuric acid solution, heat up to 85°C, extract for 5 hours, filter the extract and transfer it to the concentration tank, add 400Kg of 1.5% aqueous sulfuric acid solution to the filter residue, and heat up to 85°C , extracted for 5 hours, the extract was also filtered and transferred to the concentration tank, the filter residue was discarded, the combined filtrate was neutralized to neutrality with ammonia water, and further concentrated to obtain 10Kg of Sophora flavescens extract, which was placed in the Sophora flavescens storage tank.

[0080] Weigh 150Kg of hellebore and put it into a tank, add water to soak until the hellebore swells, drain the water, put it into an extraction tank with a cooling reflux device, add 200Kg of 90% ethanol, boil and extract for 1.5 hours, and the extract is filtered and transferred to a concentrated solution. In the tank, 200Kg of 90% ethanol was ad...

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PUM

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Abstract

The invention discloses a Chinese herbal plant pesticide which is prepared by mixing extract of 80-100 parts of flavescent sophora root, 10-20 parts of black falsehellebore, 20-40 parts of abnormal fruit of Chinese honeylocust, 20-40 parts of Chinese honey locust, 20-40 parts of mersosin seeds, 20-40 parts of tobacco leaf, 2-5 parts of stemonine with 10 parts of gum spirit of turpentine.

Description

technical field [0001] The invention relates to a pesticide, in particular to a plant pesticide compounded from pure Chinese herbal medicines. The present invention also relates to the preparation method of the plant pesticide. Background technique [0002] While traditional chemical pesticides play a positive role in increasing agricultural production and preventing and controlling diseases and insect pests, they also bring serious side effects. The ecological balance is destroyed, the environment is seriously polluted, and pesticide residues endanger human health. It's getting harder and harder to wait. With the development of social productive forces and the improvement of people's living standards, people are more and more aware of the importance of environmental protection. Therefore, pollution-free pesticides with high efficiency and low toxicity have become the focus of the development of new pesticides. [0003] Plant pesticides are highly valued by countries beca...

Claims

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Application Information

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IPC IPC(8): A01N65/20A01N65/26A01N65/38A01N65/42A01N65/46A01P7/00
CPCY02A50/30
Inventor 李毅王月顺王恒学
Owner SHANXI ANSHUN BIOTECH
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