Preparation method and application of evodia rutaecarpa serving as agricultural fungicide

A technology of Evodia and fungicides, applied in the field of Evodia fungicides and its preparation, can solve the problems of long research and development cycle and huge cost, and achieve the effects of low equipment requirements, long application history and simple processing.

Active Publication Date: 2016-06-15
INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using traditional methods to develop a new pesticide requires screening tens of th

Method used

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  • Preparation method and application of evodia rutaecarpa serving as agricultural fungicide
  • Preparation method and application of evodia rutaecarpa serving as agricultural fungicide
  • Preparation method and application of evodia rutaecarpa serving as agricultural fungicide

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] Evodia fruit, stalk, and husk were extracted 3 times with 75% ethanol and refluxed at 60°C to obtain the total extract. The total extract was adsorbed by A8 macroporous resin and eluted with water, 30%, 50%, and 75% ethanol, respectively. , Collect the 30%, 50% and 75% elution parts of the macroporous resin, and concentrate the eluate to 1.5kg of flow extract to obtain the total alkaloid extract of Evodia. Put 0.5kg of surfactant (such as polysorbate-80) and 1.5kg of Evodia edulis total alkaloid extract in the homogenizer, heat to 30℃, add 1kg of water into the homogenizer while stirring , Stir for 30 minutes, mix well, and cool to normal temperature to form a water emulsion to obtain Evodia bactericide.

Example Embodiment

[0031] Example 2

[0032] 50kg of Evodia edulis leaves were extracted 3 times with 95% ethanol at 60°C under reflux to obtain the total extract. The total extract was adsorbed with D101 macroporous resin and eluted with water, 30%, 50%, and 80% ethanol, respectively, and the macroporous resin 30 was collected. %, 50% and 80% of the eluted parts, and concentrated the eluate to 1.5kg of flow extract to obtain the total alkaloid extract of Evodia. Put 0.5kg of surfactant (such as polyoxyethylene type nonionic surfactant: OP-10) and 1.5kg of evodia total alkaloid extract in a homogenizer, and heat to 50℃, while stirring 1 kg of water was added to the homogenizer, stirred for 30 minutes, and after mixing well, cooled to normal temperature to form a water emulsion to obtain the evodia bactericide.

Example Embodiment

[0033] Example 3

[0034] The indoor toxicity test of the Evodia Fructus Fungicide prepared according to Example 1:

[0035] Laboratory virulence determination The tested plant pathogens include Sclerotinia sclerotiorum (Sclerotiniasclerotiorum), Fusariumgraminearum (Fusariumgraminearum), Botrytiscinerea of ​​cucumber, Colletotrichumgloeosporioides, Rhizoctoniasolani, and corn Helminthosporiummaydis, Botrytiscinerea, Fusariummoniliforme, Rhizoctoniacerealis, Alternariasolani, Verticilliumdahliae, and Rice Blast 12 kinds of common plant pathogenic bacteria including Magnaportheoryzae. All tested pathogens were isolated strains collected in the field.

[0036] The indoor virulence of 12 kinds of plant pathogenic bacteria was determined by the hypha growth rate method. Each strain was activated and cultured on a PDA plate, and then a 5mm hole puncher was used to pick out the bacterial plate on the edge of the colony. The sterile water to be tested was made into mother liquor with st...

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Abstract

The invention relates to a plant source agricultural fungicide and a preparation method thereof. The fungicide is formed by extracting and processing fruit, carpopodium, shells and leaves of evodia rutaecarpa. The fungicide comprises the following main active ingredients in percentage by weight: 6 to 10 percent of hydroxyevodiamine, 5 to 10 percent of evodiamine, 5 to 10 percent of rutaecarpin, 6 to 10 percent of dehydroevodiamine, 1 to 5 percent of bievodiamine, 1 to 5 percent of hepta evodiamine, 6 to 40 percent of other alkaloid components. The main active ingredients are processed and manufactured into an emulsion in water, and can be used for controlling and preventing a plurality of plant diseases after being diluted. The plant source agricultural fungicide and the preparation method thereof have the advantages that raw materials are easily obtained; the process is simple; the cost is low; the fungicide has very good control and prevention effects on a plurality of plant diseases, such as sclerotinia rot of colza, wheat scab and grape anthracnose, is safe to plants, does not pollute the environment, and is a biological pesticide preparation which meets the production requirements on pollution-free agricultural products in China.

Description

1. Technical field [0001] The invention relates to a fungicide of evodia rutaecarpa and a preparation method thereof. 2. Background technology [0002] Relevant experts believe that China should vigorously develop botanical pesticides. At present, more than 80% of the pesticides used in China are organic synthetic pesticides. The large-scale use of highly toxic and high-residue organic synthetic pesticides has led to serious environmental pollution, ecological balance damage, and pathogen resistance. As people's awareness of advocating nature, protecting the environment, and paying attention to food safety is increasing, the pollution-free biological pesticide industry and the field of biological control research have obtained rare development opportunities. Therefore, the development of botanical pesticides has become a new way for the development of Chinese pesticides and Chinese herbal medicines. To develop a new pesticide using traditional methods, it is necessary to s...

Claims

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Application Information

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IPC IPC(8): A01N65/36A01N43/90A01P3/00
CPCA01N43/90A01N65/36
Inventor 徐曙王奇志冯煦王碧刘飞陈雨单宇印敏管福琴王鸣赵友谊张建华
Owner INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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