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Method for preparing neem oil insecticidal agent

A technology of neem oil and insecticide, which is applied in the field of pesticides, can solve the problem that the killing of pests cannot be achieved immediately, and achieve the effect of human and animal safety and high insecticidal efficiency

Inactive Publication Date: 2007-08-08
黄宝生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the killing of pests cannot be achieved immediately, and it generally takes 2 to 3 days to take effect. Therefore, neem oil is rarely used to prepare insecticides alone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] According to main components and weight percentage:

[0015] (4) Bamboo leaching solution: 20-45%;

[0016] (5) Tobacco stem and tobacco leaf tendon extract: 25% to 50%;

[0017] (6) Neem oil: 5-35%;

[0018] Stir fully at high speed and fill.

[0019] (1) The preparation method of the leachate of the plant is as follows: Plant plant→crushing→water immersion→boiling→filtering→concentration.

[0020] (2) Tobacco stalk and tobacco leaf string extract: Tobacco stalk and tobacco leaf string→crushing→water immersion→boiling→filtering→concentration.

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Abstract

The invention provides a process for preparing nimbin insecticide from the following constituents (by weight percent): roor of sessile stemona leachate 20-45%, tobacco stems and tobacco leaf leachate 25-50%, nimbin oil 5-35%. The process for preparing stemonine and tobacco stems leachate consists of disintegrating, water immersing, boiling, filtering and concentrating.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a method for preparing pesticides based on neem oil. Background technique [0002] As we all know, neem oil contains azadirachtin, bitterin and other insect-killing and insect-inhibiting ingredients. It is a pure natural biopesticide with high efficiency, broad spectrum, no pollution, no residue, not easy to produce drug resistance, and harmless to humans and animals. advantage. Its disadvantage is that the killing of pests cannot be achieved immediately, and it generally takes 2 to 3 days to take effect. Therefore, neem oil is rarely used to prepare insecticides alone. Contents of the invention [0003] The object of the present invention is to provide an insecticide with long-lasting drug effect and rapid insecticidal effect. [0004] The invention is prepared by mixing neem oil as the main component with pure natural leachate extract with fast insecticidal effect, tobacco stem an...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01P7/04A01N65/46A01N65/26A01N65/38
CPCY02A50/30
Inventor 黄宝生
Owner 黄宝生