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Aqueous pesticide solution compounded by silver chain extract and tea saponin and method for preparing same

A technology of extract and tea saponin, which is applied in the field of pesticides, can solve the problems of unsatisfactory control effect and difficulty in large-scale production, and achieve the effects of reduced dosage, improved efficacy and less environmental pollution

Inactive Publication Date: 2013-06-19
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unsatisfactory control effect of a single fungicide, it needs deep extraction and purification to a certain purity to achieve the expected control effect, so it is difficult to form a large-scale production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The weight ratio of each component of the pesticide water formulation of the black locust extract and the tea saponin is as follows: the black locust extract is 1.3%, the tea saponin is 0.7%, and the balance is distilled water.

[0018] Weigh the dried acacia powder, add 15% ethanol 10 times the weight of the acacia powder as the extractant, immerse and extract at 15°C for 12 hours, filter, combine the filtrate, concentrate under reduced pressure to dryness, and use it with the stems and leaves of the acacia powder Distilled water of equal powder mass is suspended by ultrasonic vibration and filtered. The filtrate is concentrated to dryness to obtain the acacia extract, which is then mixed with tea saponin in proportion and dissolved in distilled water to prepare a compound pesticide of acacia extract and tea saponin Water agent.

[0019] Use indoor pot experiment to conduct indoor efficacy test on cucumber powdery mildew. When the first true leaf is just unfolded, use a thr...

Embodiment 2

[0021] The weight ratio of each component of the pesticide water formulation of the black locust extract and the tea saponin is 1.5% of the black locust extract, 0.5% of the tea saponin, and the balance is distilled water.

[0022] Weigh the dried acacia powder, add 15% ethanol 20 times the weight of the acacia powder as the extractant, immerse and extract at 25°C for 18 hours, filter, combine the filtrate, concentrate under reduced pressure to dryness, and use it with the stems and leaves of the acacia powder Distilled water of equal powder mass is suspended by ultrasonic vibration and filtered. The filtrate is concentrated to dryness to obtain the acacia extract, which is then mixed with tea saponin in proportion and dissolved in distilled water to prepare a compound pesticide of acacia extract and tea saponin Water agent.

[0023] Use indoor pot experiment to conduct indoor efficacy test on cucumber powdery mildew. When the first true leaf is just unfolded, use a throat sprayer ...

Embodiment 3

[0025] The weight ratio of each component of the pesticide water formulation of the black locust extract and the tea saponin is: the black locust extract 1.7%, the tea saponin 0.3%, and the balance is distilled water.

[0026] Weigh the dry locust powder, add 15% ethanol 30 times the weight of the locust powder as the extractant, soak and extract at 35°C for 24 hours, filter, combine the filtrate, concentrate under reduced pressure to dryness, and use it with the locust stems and leaves Distilled water of equal powder mass is suspended by ultrasonic vibration and filtered. The filtrate is concentrated to dryness to obtain the acacia extract, which is then mixed with tea saponin in proportion and dissolved in distilled water to prepare a compound pesticide of acacia extract and tea saponin Water agent.

[0027] Use indoor pot experiment to conduct indoor efficacy test on cucumber powdery mildew. When the first true leaf is just unfolded, use a throat sprayer to spray the pesticide w...

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PUM

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Abstract

The invention relates to an aqueous pesticide solution compounded by silver chain extract and tea saponin and a method for preparing the same in the technical field of pesticides. The aqueous pesticide solution comprises the following compositions in percentage by weight: 1.3 to 1.7 percent of silver chain extract, 0.3 to 0.7 percent of tea saponin and the balance of distilled water; the method for preparing the aqueous pesticide solution comprises the following steps that: dry silver chain powders are selected and added with ethanol, the mixture is dipped, extracted and filtered; a filtrate is combined, decompressed and concentrated to paste so as to obtain stem leaf extract of the silver chain; the stem leaf extract of the silver chain is added with the distilled water which has the sameweight as the dry silver chain powder; the mixture is vibrated and suspended; a suspension solution is filtered; the filtrate is condensed to dryness so as to obtain the silver chain extract; and thesilver chain extract and the tea saponin are mixed in percentage by weight and dissolved by the distilled water to obtain the aqueous pesticide solution compounded by the silver chain extract and thetea saponin. The aqueous pesticide solution utilizes natural innoxious plant material, namely the silver chain, and a natural synergistic agent, namely the tea saponin, strengthens the application effect of a botanical fungicide, reduces pollution brought by chemical pesticides and is easy to popularize and apply.

Description

Technical field [0001] The invention relates to an aquatic agent in the technical field of pesticides and a preparation method thereof, in particular to a pesticide aquatic agent compounded with a black locust extract and tea saponin and a preparation method thereof. Background technique [0002] Cucumber powdery mildew is a leaf disease with short incubation period and rapid prevalence caused by Sphaerothecafuligine of the order Sphaerothecafuligine. In production, chemical pesticides are mainly used to prevent and control this disease. The chemical pesticides used include thiophanate, fenproline, carbendazim, and Subaoli. However, at present, powdery mildew has almost simultaneously developed resistance to the above-mentioned types of fungicides, and the above-mentioned chemical pesticides are prone to high residues and are likely to cause harm to the environment. [0003] Robinia pseudoacacia (Robinia pseudoacacia Linnl) is a perennial deciduous tree of the leguminous Robinia g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/20A01N43/16A01P3/00
Inventor 代光辉刘峰陈佳李会顾振芳
Owner SHANGHAI JIAOTONG UNIV