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Botanical insecticide its preparation method

A plant insecticide and insecticide technology, applied in the fields of botanical equipment and methods, plant growth regulators, biocides, etc., can solve the problems of human damage, easy formation of drug resistance of animals and plants, environmental pollution, etc. Safe and convenient to use, easy to degrade naturally, no pollution to the environment

Inactive Publication Date: 2006-03-29
李廷伦
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Problems solved by technology

[0002] At present, most of the pesticides used in China are chemical pesticides. The use of chemical pesticides not only pollutes the environment, but also leaves animals and plants in the body and causes damage to humans after long-term use. At the same time, animals and plants are prone to develop drug resistance; In addition, although there are studies and reports on plant pesticides, they generally have the characteristics of slight toxicity, slight residue and slow effect.

Method used

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Embodiment Construction

[0007] During preparation, Chinese herbal medicinal plants should be carefully selected first, and each raw material should be a pure dry product, so as to avoid mildew, insects, discoloration, taste, and deterioration of fake and inferior products, that is, select raw materials according to routine.

[0008] The preparation process of the tobacco concentrate is as follows: the raw materials are dried or dehydrated in other ways and then crushed into 1-6mm blocks, strips, sheets or other shapes, and the crushed raw materials are soaked in water with a temperature above 20°C for 20-48 hours. The weight ratio of raw material to water is 1:4, then use a centrifuge to dehydrate, press a filter press to filter out the active ingredients with a specific gravity of 2800-3000 mesh and a specific gravity of 0.02-0.04, and then concentrate and refine the filtrate in a reaction kettle for 3-4 hours. 90-110 ° C, that is, to obtain a concentrated solution with a specific gravity of 0.04-0.1...

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Abstract

A vegetative insecticide is prepared from 8 Chinese-medicinal herbs including leftover of tobacco, Sichuan chinaberry, wild chrysanthemum flower, etc through carefully choosing raw materials, drying in air, pulverizing, immersing filter, steaming and concentrating. Its advantages are high effect, no environmental pollution, and improving soil.

Description

technical field [0001] The invention relates to an insecticide and a preparation method, in particular to a plant insecticide and a preparation method thereof. Background technique [0002] At present, most of the insecticides used in China are chemical insecticides. The use of chemical insecticides not only pollutes the environment, but also leaves animals and plants in the body for a long time to cause damage to humans. At the same time, animals and plants are also prone to develop drug resistance; In addition, although there are studies and reports on plant pesticides, they generally have the characteristics of slight toxicity, slight residue and slow effect. Contents of the invention [0003] The purpose of the present invention is to provide a high-efficiency, broad-spectrum, sub-low toxicity, no residue plant insecticide and its preparation method. The raw material of the insecticide is completely taken from natural plants, and the production process is a physical ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/00A01N65/38A01N65/06A01N65/12A01N65/26A01N65/40A01P7/00
CPCY02A50/30
Inventor 李廷伦
Owner 李廷伦
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