Pesticide for killing aphid and red spider and preparation method thereof

A red spider and pesticide technology, applied in the field of natural plant application, can solve problems such as damage to human health, unreasonable use, and hazards to safety, and achieve the effects of long-lasting insecticidal effect, low production cost, and simple process operation

Inactive Publication Date: 2013-03-06
BIOCHEM ENG COLLEGE OF BEIJING UNION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, pesticides play a very important role in killing and inhibiting pests and diseases, and ensuring stable and high yields of crops. At the same time, due to unreasonable use, they will endanger the safety of the environment and human health through various means.

Method used

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  • Pesticide for killing aphid and red spider and preparation method thereof
  • Pesticide for killing aphid and red spider and preparation method thereof
  • Pesticide for killing aphid and red spider and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Grind 2.5kg of fresh Ailanthus leaves, put them into a 50L extraction tank, add 10L of water, heat and reflux for 2 hours, concentrate, and when the amount of the medicinal solution is 90% of the original, obtain Ailanthia leaf extract, release the extract, and cool Store at 4°C in the refrigerator for later use;

[0031] 1.5kg of fresh eucommia leaves were pulverized, put into a 50L extraction tank, added 10L of water, heated and refluxed for 2 hours, concentrated, and when the amount of the medicinal solution was 90% of the original, the eucommia leaf extract was obtained, and the extract liquid was released. Cool to 4°C and store in the refrigerator for later use;

[0032] Grind 1.5kg of dried Sophora flavescens, put it into a 50L extraction tank, add 10L of 20v% ethanol solution, heat and reflux for 2 hours, and concentrate. °C, store in the refrigerator until use.

[0033]As shown in Table 1, take a certain amount of HZ801 type resin, soak and swell with 95v% eth...

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PUM

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Abstract

The invention provides a preparation method of a pesticide for killing aphids and red spiders, belonging to the technical field of application of natural plants. Effective components are extracted from the natural plants, i.e. ailanthus leaves, eucommia leaves and kuh-seng, to prepare the pesticide. The preparation method comprises the following steps of: firstly extracting the effective components from the ailanthus leaves, the eucommia leaves and sophora alopecuroide; separating and purifying a kuh-seng extract through HZ801 type resins to obtain matrine; and mixing extracting concentrated solutions of the ailanthus leaves and the eucommia leaves with the matrine to prepare the natural green pesticide which has the advantages of lasting deinsectization effect, low production cost and easy process operation.

Description

technical field [0001] The invention relates to pesticides for killing aphids and red spiders and a preparation method thereof, belonging to the technical field of natural plant applications. Background technique [0002] The world today is facing four major problems, namely population, food, energy and environment. There are more than 1,500 kinds of major crop diseases and insect pests in my country, and dozens of them are particularly serious. So far, chemical control is still the most important means and measures in pest management in my country. Among them, more than 95% use chemical pesticides, and the proportion of biological pesticides is only 2% to 3%. On the one hand, pesticides play a very important role in killing and inhibiting pests and diseases, and ensuring stable and high yields of crops. At the same time, due to unreasonable use, they will endanger the safety of the environment and human health through various means. There are many highly toxic and highly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/20A01N65/08A01N43/90A01P7/04A01P7/02
Inventor 霍清林强
Owner BIOCHEM ENG COLLEGE OF BEIJING UNION UNIV
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