Japanese dock plant acaricide, preparation method thereof and application

A technology of acaricide and sheep's hooves, which is applied in the field of pesticides, can solve the problems of undiscovered sheep's hooves extracts, etc., and achieve the effects of enhancing acaricidal effect, delaying drug resistance, and easy availability of raw materials

Inactive Publication Date: 2012-10-03
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

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Effect test

Embodiment 1

[0021] The weight percentage of the aqueous solution for controlling the spider mite is: 10% of the root extract of the sheep's hooves, 5% of the stems of the sheep's feet, 25% of the leaves of the sheep's feet and 60% of distilled water.

[0022] Dry the root, stem and leaf of the sheep's trotter at 30-50°C and grind them into powder, weigh 20g each of the root, stem and leaf powder (20-40 mesh particles), and use 800ml of 70% ethanol solution at room temperature Immerse for 1-3 days, filter, vacuumize the crude extract obtained after leaching to -0.1 atmospheric pressure and place it in a water bath at 40-80°C to concentrate the crude extract into an extract. Add distilled water, place it in an ultrasonic generator for 10-15 minutes to suspend the dry matter, and prepare the acaricide for the sargassum plant. Water is added thereto under a stirring environment of 30-50° C., diluted to a concentration of 1 wt %, and then cooled to normal temperature to form an aqueous solutio...

Embodiment 2

[0027] The weight percentage of the aqueous solution for controlling the spider mite is: 15% of the root extract of the sheep's hooves, 15% of the stems of the sheep's feet, 20% of the leaves of the sheep's feet and 50% of distilled water.

[0028] Dry the root, stem and leaf of the sheep's trotter at 30°C and grind them into powder, weigh 50g each of the root, stem and leaf powder (20-40 mesh particles), and impregnate with 2000ml of 50% ethanol solution at room temperature After 1-3 days, filter, and vacuum the crude extract obtained after leaching to -0.1 atmospheric pressure and place it in a water bath at 60°C to concentrate the crude extract into an extract. Add distilled water, place it in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepare a miticide for sargassum. Water is added thereto under a stirring environment of 30-50° C., diluted to a concentration of 2 wt %, and then cooled to normal temperature to form an aqueous solution. For Tetra...

Embodiment 3

[0030] The percentage by weight of the aqueous solution for controlling Tetranychus cinnabarinus: 20% of the root extract of the sheep's foot, 40% of the stem of the sheep's foot extract, 10% of the leaf extract of the sheep's foot and 30% of distilled water.

[0031] Dry the root, stem and leaf of the sheep's trotter respectively at 50°C and grind them into powder, weigh 50g each of the root, stem and leaf powder (20-40 mesh particles), and impregnate with 2000ml of 70% ethanol solution at room temperature After 1-3 days, filter, and vacuum the crude extract obtained after leaching to -0.1 atmospheric pressure and place it in a water bath at 50°C to concentrate the crude extract into an extract. Add distilled water, place it in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepare a miticide for sargassum. Water is added thereto under a stirring environment of 30-50° C., diluted to a concentration of 3 wt %, and then cooled to normal temperature to for...

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Abstract

The invention discloses a Japanese dock plant acaricide, a preparation method thereof and application. The acaricide comprises, by weight, 10-35% of Japanese dock root extract, 5-40% of Japanese dock stem extract, 10-35% of Japanese dock leaf extract and 20-60% of distilled water. Japanese dock roots, Japanese dock stems and Japanese dock leaves are respectively dried and ground into powder, and the Japanese dock root extract, the Japanese dock stem extract and the Japanese dock leaf extract are obtained through a decompressing concentrating method. The acaricide has high prevention and cure effects for carminespider mites, can be directly used in prevention and cure of the carminespider mites, is free from pollution, contamination and residual toxicity and avoids damage of chemical pesticides.

Description

technical field [0001] The invention relates to a preparation method in the technical field of pesticides, in particular to a preparation for controlling Tetranychus cinnabarinus with a sheep's hoof extract and its preparation method and application. Background technique [0002] Herbivorous mites have the characteristics of small size, rapid reproduction, high population density, and serious damage. They are currently recognized as harmful biological communities that are difficult to control. The cinnabar spider mite (Tetranychus cinnabarinus) belongs to Arachnida, Eucaridae, and Tetranychidae. It is one of the important economic pests, and it has harmed more than 100 species of fruit trees and crops. In the past 30 years, due to the repeated use of non-specific chemical acaricides, many mites have rapidly developed resistance; on the other hand, while chemical pesticides kill harmful mites, they also kill enemies and other beneficial organisms. Destroyed the ecological ba...

Claims

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Application Information

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IPC IPC(8): A01N65/30A01N25/04A01P7/02
Inventor 代光辉贾福丽陈义娟陈佳王丹丹
Owner SHANGHAI JIAO TONG UNIV
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