Black locust plant acaricide, preparation method and application thereof

A technology of acaricide and locust, applied in the field of pesticides, can solve the problem of not finding locust extract, etc., and achieve the effects of enhanced acaricidal effect, low equipment requirements, and simple processing.

Inactive Publication Date: 2012-09-26
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

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Controlling Tetranychus cinnabarinus aqueous agent weight percent: 10% of Robinia pseudoacacia branch extract, 10% of Robinia pseudoacacia stem extract, 5% of Robinia pseudoacacia leaf extract, 15% of Robinia pseudoacacia flower extract and 60% of distilled water.

[0023] Dry the locust branches, stems, leaves, and flowers at 30-50°C and grind them into powder, weigh 20g each of the locust branches, stems, leaves, and flower powders (20-40 mesh particles), and use 800ml of 70% ethanol solution in the Immerse at room temperature for 1-3 days, filter, vacuum 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, and place Suspend the dry matter in an ultrasonic generator for 10-15 minutes to prepare acaricide for Robinia pseudoacacia. Water is added thereto under a stirring environment of 30-50° C. and diluted to a concentration of 1 wt %, and th...

Embodiment 2

[0028] Controlling Tetranychus cinnabarinus aqueous agent weight percent: 40% of black locust branch extract, 10% of black locust stem extract, 15% of black locust leaf extract, 5% of black locust flower extract and 30% of distilled water.

[0029] Weigh 50g each of black locust branches, stems, leaves, and flower powder (20-40 mesh particles), soak in 2000ml of 50% ethanol solution at room temperature for 1-3 days, filter, and extract the crude extract obtained after leaching Vacuum down to -0.1 atmospheric pressure and place in a water bath at 40°C to concentrate the crude extract into an extract, add distilled water, place in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepare the acaricide for Robinia pseudoacacia. Water is added thereto under a stirring environment of 30-50° C. and diluted to a concentration of 1 wt %, and then cooled to normal temperature to form an aqueous solution. For Tetranychus cinnabarinus, the method of dipping the stems ...

Embodiment 3

[0031] Controlling Tetranychus cinnabarinus aqueous agent weight percent: 15% of Robinia pseudoacacia branch extract, 15% of Robinia pseudoacacia stem extract, 35% of Robinia pseudoacacia leaf extract, 5% of Robinia pseudoacacia flower extract and 20% of distilled water.

[0032] Weigh 50g each of black locust branches, stems, leaves, and flower powder (20-40 mesh particles), soak in 2000ml of 25% ethanol solution at room temperature for 1-3 days, filter, and extract the crude extract obtained after leaching Vacuum down to -0.1 atmospheric pressure and place in a water bath at 80°C to concentrate the crude extract into an extract, add distilled water, place in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepare the acaricide for Robinia pseudoacacia. Water is added thereto under a stirring environment of 30-50°C, diluted to a concentration of 3wt%, and then cooled to normal temperature to form an aqueous solution. For Tetranychus cinnabarinus, the met...

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Abstract

The invention discloses a black locust plant acaricide, a preparation method and an application of the black locust plant acaricide, wherein the acaricide comprises the following components in percentage by weight: 10-40% of black locust branch extract, 10-40% of black locust stem extract, 5-35% of black locust leaf extract, 5-35% of black locust flower extract and 20-60% of distilled water; the black locust branch extract, the black locust stem extract, the black locust leaf extract and the black locust flower extract are extractum obtained by steps of grinding black locust branches, stems, leaves and flowers after being dried and then performing decompressing concentration. The black locust plant acaricide has high control efficiency for Tetranychus cinnabarinus, can be directly used for preventing and treating the insects, has the advantages of harmlessness, no pollution and no residual toxins, and avoids the damage of chemical pesticide.

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 by using Robinia pseudoacacia extract and its preparation method and application. Background technique [0002] Cinnabar spider mite (Tetranychus cinnabarinus) is the most widely distributed and most serious agricultural and forestry pest mite in my country. It is a pest that is difficult to control because of its small size, rapid reproduction, many annual generations, strong adaptability, and serious damage. one of the groups. At present, the control of this kind of harmful mites mainly relies on chemical agents, such as spraying organophosphorus and pyrethroid pesticides, etc. The long-term use of such agents not only leads to the resistance of mites, but also has adverse effects on non-target organisms . Botanical pesticides have the advantages of broad spectrum, unique mechanism of action, les...

Claims

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Application Information

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IPC IPC(8): A01N65/20A01N25/04A01P7/02
Inventor 代光辉贾福丽陈义娟陈佳王丹丹
Owner SHANGHAI JIAO TONG UNIV
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