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Medicinal formula, medicament, preparation method and application thereof for preventing and treating plant bacterial wilt

A bacterial wilt and pharmaceutical technology, applied in the field of pesticides, can solve problems such as inadvisability, and achieve the effects of low equipment demand, increased drug efficacy, and prevention of drug resistance.

Active Publication Date: 2019-08-30
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is no longer advisable to prevent and control diseases by applying a large amount of pesticides.

Method used

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  • Medicinal formula, medicament, preparation method and application thereof for preventing and treating plant bacterial wilt
  • Medicinal formula, medicament, preparation method and application thereof for preventing and treating plant bacterial wilt
  • Medicinal formula, medicament, preparation method and application thereof for preventing and treating plant bacterial wilt

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preparation example Construction

[0026] More preferably, this embodiment also provides a medicament for preventing and treating plant bacterial wilt, the preparation method of which comprises:

[0027] S1: After mixing Sophora Sophorae, Litsea japonica, Boluohui, Cocklebur, Artemisia argyi and Eupatorium adenophorum in parts by weight, extract with 80-95wt% alcohol solution as a solvent to obtain the first extract.

[0028] The main active ingredients of medicinal materials such as Sophora sophora, Litsea japonica, Boluohui, Cocklebur, Artemisia argyi, and Eupatorium adenophorum are alkaloids, and there are also some flavonoids and fatty oil components. In this embodiment, The extraction is carried out with 80-95 wt% alcohol solution as a solvent, and the polarity of the solvent is moderate, which is beneficial to more comprehensively extracting the effective and active components in the medicinal materials. The obtained extract was concentrated under reduced pressure to obtain the first extract.

[0029] Th...

Embodiment 1

[0044] The present embodiment provides a kind of medicament for preventing and treating bacterial wilt of plants, and the pharmaceutical formulation of the medicament comprises by weight parts:

[0045] 7 parts of bitter bean, 5 parts of pheasant, 9 parts of boluohui, 6 parts of cocklebur, 6 parts of mugwort leaves, 8 parts of Eupatorium adenophorum, and 1.5 parts of garlic.

[0046] The preparation method of this medicament is:

[0047] a. After mixing the above-mentioned Sophora Sophora, Litsea Chipotle, Boluohui, Cocklebur, Artemisia argyi, and Eupatorium adenophorum, heat and reflux them with 80wt% methanol solution, filter the obtained extract and depressurize Concentrating to obtain the first extract;

[0048] b. The garlic is subjected to sonic vibration extraction with water, and the obtained extract is filtered and concentrated under reduced pressure to obtain the second extract;

[0049] c. Mixing the first extract with the second extract, and then mixing with auxi...

Embodiment 2

[0051] The present embodiment provides a kind of medicament for preventing and treating bacterial wilt of plants, and the pharmaceutical formulation of the medicament comprises by weight parts:

[0052] 9 parts of bitter beans, 7 parts of pheasant pepper, 7 parts of boluohui, 9 parts of cocklebur, 9 parts of mugwort leaves, 10 parts of Eupatorium adenophorum, and 0.5 parts of garlic.

[0053] The preparation method of this medicament is:

[0054] a. After mixing the above-mentioned Sophora sophorae, Litsea japonica, Boluohui, cocklebur, Artemisia argyi, and Eupatorium adenophorum, use the sonic vibration extraction method to extract it with 95wt% ethanol solution, and extract the obtained extract Filtration and concentration under reduced pressure to obtain the first extract;

[0055] b. decocting and extracting the garlic with water, filtering the obtained extract and concentrating under reduced pressure to obtain the second extract;

[0056] c. Mixing the first extract wit...

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Abstract

The invention provides a chemical formula for preventing and treating plant bacterial wilt, a reagent, and a preparation method and application thereof, and belongs to the field of agricultural chemicals. The chemical formula comprises sophora alopecuroides, Litsea cubeba, macleaya cordata, cocklebur fruit, folium artemisiae argyi, Ageratina adenophora and garlic. The reagent prepared according to the chemical formula has favorable bacteriostatic action on Ralstonia solanacearum, and can effectively inhibit infection of Ralstonia solanacearum to plants, thereby effectively preventing and treating bacterial wilt of the plants. The preparation method of the reagent comprises the following steps: mixing the sophora alopecuroides, Litsea cubeba, macleaya cordata, cocklebur fruit, folium artemisiae argyi and Ageratina adenophora according to certain weight parts, and extracting with a 80-95wt% alcohol solution used as solvent to obtain a first extract; extracting the garlic with polar solvent according to a certain weight part to obtain a second extract; and mixing the first extract and the second extract. The reagent prepared by the method has a favorable chemical effect; and the method is simple in process, has low requirements for equipment and is easy to realize industrial mass production.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a pharmaceutical formula, a medicament, a preparation method and application thereof for preventing and treating bacterial wilt of plants. Background technique [0002] Bacterial wilt is caused by the infection of R. solanacearum. Its main manifestations are: initially, the plants without any abnormal phenomenon in the aboveground part suddenly lose their vitality during the day, and the whole aboveground part withers, and there will be some changes in cloudy days and sooner or later. Recovers like a healthy plant; however, it withers shortly thereafter, showing symptoms of blight. This process progresses very rapidly. It is a worldwide disease widely distributed in tropical, subtropical and some temperate regions, and is the main reason for the production reduction of various economic crops. [0003] Taking tobacco as an example, when R. solanacearum infects tobacco, it will cause ser...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/42A01P1/00
Inventor 李强谭军
Owner HUNAN AGRICULTURAL UNIV
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