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Purple stem boneset extract for prevention and treatment of plant disease

The invention relates to a technology for preventing and controlling plant diseases and Echinacea, which is applied in the field of extraction and application of botanical pesticides, and achieves the effects of good environmental and ecological benefits, good control effects and low control costs.

Inactive Publication Date: 2007-10-03
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, Wang Yiding also mentioned in his doctoral dissertation that the research of Liu Shigui and others from the Institute of Bioengineering of Sichuan University believes that the extract of Eupatorium adenophorum has no inhibitory effect on fungi. At present, there is no use of Eupatorium adenophorum extract A precedent for plant disease control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take out 1 kg of Eupatorium adenophorum stems without roots, leaves, and flowers and dry them in an oven at 40° C. for 5 hours, grind them with a plant pulverizer, add n-hexane with a mass-volume ratio of 1:2, soak and extract 3 times, and filter to remove slag. The extraction time is 5 hours, and the extraction temperature is 20°C. Concentrate the filtered extract at a temperature of 30°C to directly obtain the n-hexane extract of Eupatorium adenophorum stem.

[0017]

Embodiment 2

[0019] Take out 1 kg of Eupatorium adenophorum stems without roots, leaves, and flowers and dry them in an oven at 55° C. for 24 hours. After pulverizing with a plant pulverizer, add n-hexane with a mass-volume ratio of 1:4, soak and extract 3 times, filter and remove slag. The extraction time is 24 hours, and the extraction temperature is 40°C. Concentrate the filtered extract at a temperature of 45° C. to directly obtain the n-hexane extract of Eupatorium adenophorum stem.

[0020]

Embodiment 3

[0022] Take out 1 kg of Eupatorium adenophorum stems without roots, leaves, and flowers and dry them in an oven at 60° C. for 72 hours. After pulverizing with a plant pulverizer, add n-hexane with a mass-volume ratio of 1:25, soak and extract 3 times, filter and remove slag. The extraction time is 72 hours, and the extraction temperature is 95°C. Concentrate the filtered extract at a temperature of 90°C to directly obtain the n-hexane extract of Eupatorium adenophorum stem.

[0023]

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PUM

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Abstract

The present invention relates to plant disease prevention and control with plant extract, and is especially purplestem eupatorium extract for plant disease prevention and control. The n-hexane and petroleum ether extract of purplestem eupatorium has high inhibiting activity on the pathogenic bacteria causing foot rot of broad bean, early blight of tomato, rice blast and pear scab. The purplestem eupatorium extract may be used to prepare germicide with other natural plant extracts, and the germicide has excellent prevention and control effect on plant diseases. The present invention utilizes purplestem eupatorium extract in preventing and controlling plant diseases for the first time.

Description

technical field [0001] The invention relates to the use of Eupatorium adenophorum extract for plant disease prevention and treatment, and belongs to the extraction and application of botanical pesticides. Background technique [0002] Eupatouium adenophorum (Eupatouium adenophorum) English name Crofton weed or Pamakani, also known as destruction grass, aircraft grass, liberation grass, etc., is a perennial herbaceous plant of the genus Eupatouium adenophorum. Eupatorium adenophorum has the characteristics of wide ecological adaptability, fast growth, strong fecundity, high gregariousness, strong encroachment and stress resistance, and large consumption of soil fertility. The single-excellent plant community causes many plants to grow slowly, some species are even on the verge of extinction, and large-scale production reductions such as grain and high-quality forage are caused. It is a worldwide malignant weed. [0003] Regarding the control of Eupatorium adenophorum, physic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/00A01P1/00A01N65/40
Inventor 叶敏朱有勇李成云李正跃肖春
Owner YUNNAN AGRICULTURAL UNIVERSITY
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