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A botanical fungicide against cabbage soft rot

A botanical fungicide and cabbage soft rot technology, applied in plant growth regulators, biocides, animal repellents, etc., can solve problems such as hidden dangers of agricultural food safety, pesticide residues, soil and water pollution, and achieve prevention and control Remarkable effect, good stability, obvious bactericidal effect

Active Publication Date: 2021-03-30
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as we all know, chemical fungicides will cause soil and water pollution, pesticide residues and other hazards, and will also cause hidden dangers to the safety of agricultural products

Method used

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  • A botanical fungicide against cabbage soft rot
  • A botanical fungicide against cabbage soft rot
  • A botanical fungicide against cabbage soft rot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation steps of the volatile oil of Polygonum rubratum:

[0023] (1) gather Polygonum rubrum, clean, dry under natural conditions, cross 60 mesh sieves after pulverizing;

[0024] (2) Add 8 times hard water to the mass of Polygonum Polygonum powder, mix without soaking, and extract by steam distillation for 3 hours to obtain Polygonum Polygonum volatile oil.

[0025] Preparation of plant-derived fungicides from the volatile oil of Polygonum rubratum:

[0026] Raw material ratio: 2 kg of volatile oil of Polygonum rubrum, 2 kg of Tween-20, 8 kg of ethanol, and 88 kg of hard water. Mix uniformly according to the ratio of raw materials, and pack to obtain the plant-source fungicide product of Polygonum rubrum volatile oil.

Embodiment 2

[0028] The preparation steps of the volatile oil of Polygonum rubratum:

[0029] (1) gather Polygonum rubrum, clean, dry under natural conditions, cross 80 mesh sieves after pulverizing;

[0030] (2) Add 10 times hard water to the mass of Polygonum Polygonum powder, mix it with hard water, soak for 3 hours, and extract by steam distillation for 8 hours to obtain Polygonum Polygonum volatile oil.

[0031] Preparation of plant-derived fungicides from the volatile oil of Polygonum rubratum:

[0032] Raw material ratio: 3 kg of volatile oil of Polygonum rubrum, 8 kg of Tween-20, 12 kg of ethanol, and 77 kg of hard water. Mix uniformly according to the ratio of raw materials, and pack to obtain the plant-source fungicide product of Polygonum rubrum volatile oil.

Embodiment 3

[0034] The preparation steps of the volatile oil of Polygonum rubratum:

[0035] (1) Gather Polygonum rubrum, clean, dry under natural conditions, cross 100 mesh sieves after pulverizing;

[0036] (2) Add 12 times of hard water to the mass of Polygonum Polygonum powder, mix them with hard water, soak for 24 hours, and extract by steam distillation for 9 hours to obtain Polygonum Polygonum volatile oil.

[0037] Preparation of plant-derived fungicides from the volatile oil of Polygonum rubratum:

[0038] Raw material ratio: Polygonum rubrum volatile oil 4 kg, Tween-20 8 kg, ethanol 15 kg, hard water 73 kg. Mix uniformly according to the ratio of raw materials, and pack to obtain the plant-source fungicide product of Polygonum rubrum volatile oil.

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Abstract

The invention provides a botanical bactericide for resisting Chinese cabbage soft rot disease pathogens. The bactericide is prepared by using Polygonum orientale L. volatile oil as a main material andadding ethanol, tween-20 and water and the Polygonum orientale L. volatile oil is prepared through Polygonum orientale L. crushing, sieving, water soaking and steam distillation process extraction. The bactericide has the characteristics of simple preparation method and low cost. The bactericide has a significant sterilizing effect on Erwinia carotovora (Chinese cabbage soft rot disease pathogens) caused by the Chinese cabbage soft rot disease. The bactericide can well prevent and treat the Chinese cabbage soft rot disease after being sprayed on Chinese cabbage, has the advantages of good dispersibility, good stability, no pollution to the environment, and no residual, also has the effects of green manure, and is an ideal botanical bactericide.

Description

technical field [0001] The invention relates to a botanical fungicide, in particular to a botanical fungicide for resisting Chinese cabbage soft rot fungus, which uses Polygonum rubra volatile oil as a main raw material. Background technique [0002] Chinese cabbage is the main vegetable in winter and spring in Northeast China and North China. Cabbage soft rot, commonly known as rotten lump and rot disease, is a devastating disease in Chinese cabbage production. The yield loss is generally 5% to 20%, and severe plots even fail. Cabbage soft rot is caused by Erwinia carotovora (cabbage soft rot) through Chinese cabbage wounds, or spread by rain or insects. After the infection, the Chinese cabbage will rot. In the later period, the infected and rotten Chinese cabbage diseased leaves lose water and become dry, and stick to the leaf ball in the form of translucent thin paper. Finally, the whole cabbage softens, rots, and emits a foul smell. In addition, in addition to the fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/30A01N31/02A01P1/00
Inventor 蔡瑾高以宸张静王梦亮
Owner SHANXI UNIV
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