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Pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts as well as preparation method and application of pesticide composition

A technology of Cnidium cnidaria extract and pesticide composition, which is applied in the field of pesticides, can solve the problems such as the sterilization effect needs to be further improved, the extraction temperature is high, and the extract has many impurities, and achieves good control effect, low cost and wide sterilization spectrum. Effect

Active Publication Date: 2015-04-15
CHENGDU NEWSUN CROPSCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the extraction temperature of this method is high, the obtained extract has many impurities, and the bactericidal effect needs to be further improved

Method used

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  • Pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts as well as preparation method and application of pesticide composition
  • Pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts as well as preparation method and application of pesticide composition
  • Pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts as well as preparation method and application of pesticide composition

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preparation example Construction

[0048] Further, the present invention also discloses a preparation method of the pesticide composition containing Sophora flavescens and Fructus Cnidii extracts of the present invention, comprising the following steps:

[0049] a. Extraction: Weigh Sophora flavescens granules and Fructus Cnidii granules, mix them, add ethanol solution according to the ratio of material to liquid 1:3~12g / ml, reflux extraction at 60~85°C, filter to obtain extract; wherein, the alcohol solution is Methanol solution or ethanol solution, alcohol solution concentration ≥ 80% v / v;

[0050] b. Preparation: make the extract into microemulsion, soluble agent or aqueous agent.

[0051] Among them, Sophora flavescens granules and Cnidium chinensis granules can be commercially available granules, or can be obtained by pulverizing Sophora flavescens roots and Cnidium fruit by conventional methods. In order to improve the extraction effect and save the cost, the Sophora flavescens granules and Cnidium chine...

Embodiment 1

[0059] Embodiment 1 Preparation of the pesticide composition containing Sophora flavescens and Fructus Cnidii extract of the present invention

[0060] a, extract: take by weighing dry Sophora flavescens root and Fructus Cnidii fruit, mix, pulverize, cross 80 mesh sieves, add ethanol solution,

[0061] Reflux extraction twice, filter, combine the filtrate, concentrate, make the weight of the extract equal to the weight of the original medicinal material, and obtain the extract kssc-01 ~ kssc-08; wherein, the parameters are shown in Table 1;

[0062] b. Preparation: add the additives in Table 2 to the extracts kssc-01-kssc-08, and stir evenly to obtain the pesticide compositions KSSC-01-KSSC-08 containing the extracts of Sophora flavescens and Fructus Cnidii.

[0063] Table 1 preparation process parameters of Sophora flavescens and Fructus Cnidii extract

[0064]

[0065] Among them, Sophora flavescens and Fructus Cnidii were purchased from Anguo Zhongtian Chinese Herbal Pi...

Embodiment 2

[0068] Example 2 Determination of total alkaloid content in the pesticide composition containing Sophora flavescens and Fructus Cnidii extract of the present invention

[0069] 1. Grind 10g of Sophora flavescens, pass through a 80-mesh sieve, add 100ml of water, stir at a speed of 90 rpm, and reflux at 82°C for two hours, combine the co-extracted liquid, concentrate to 10ml, and obtain Extract 1.

[0070] 2. Grind 10g of Fructus Cnidii Fructus, pass through a 80-mesh sieve, add 100ml of water and stir at a speed of 90 rpm, and reflux at 82°C for a total of two extractions, each for two hours, combine the co-extractions, concentrate to 10ml, and obtain Extract 2.

[0071] 3. Mix 10g Sophora flavescens and 10g Cnidium Fructus Cnidii, crush them, pass through an 80-mesh sieve, add 100ml of water and stir at a speed of 90 rpm, and reflux at 82°C for a total of two extractions, each time for two hours, and combine the co-extractions. Concentrate to 10ml to obtain extract 3.

[0...

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Abstract

The invention relates to a pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts as well as a preparation method and use of the pesticide composition, belonging to the field of pesticides. The invention solves the technical problem that the pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts is provided. The pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts provided by the invention is prepared by extracting the active ingredients radix sophorae flavescentis and fructus cnidii mixed by alcoholic liquor, wherein the weight ratio of radix sophorae flavescentis to fructus cnidii is 1: (0.2-5). According to the pesticide composition containing radix sophorae flavescentis and fructus cnidii extracts, the ingredients have the synergistic interaction and are wide in bacteriocidal spectrum, and the pesticide composition is co-extracted from two plants, so that the pesticide composition is low in cost and free from pesticide residue, thereby greatly reducing the risk of generating phytotoxicity.

Description

technical field [0001] The invention relates to a pesticide composition containing extracts of Sophora flavescens and Fructus Cnidii and its preparation method and application, belonging to the field of pesticides. Background technique [0002] The consequences caused by the destruction or disturbance of the normal physiological functions of plants are called plant diseases. Many plant diseases such as powdery mildew, gray mold, downy mildew, viral disease, leaf mold, anthracnose, rust, Fusarium wilt, blight, etc. have become the main diseases affecting agricultural production. The occurrence of crop diseases often causes serious losses to the national economy and people's lives. Some diseased crops can also cause human and animal poisoning. Some high-quality and high-yielding varieties are often eliminated due to serious diseases. [0003] At present, chemical fungicides are mainly used for chemical control of plant diseases. For a long time, due to the large amount of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/20A01P3/00
Inventor 何其明唐齐严寒苏克跃杜波王云海任丹杨锡良
Owner CHENGDU NEWSUN CROPSCI
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