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Botanical fungicide for preventing and treating rice blast

A plant-derived fungicide, a technology for rice blast disease, applied in the directions of fungicides, plant growth regulators, biocides, etc., can solve the problem of slow research on plant-derived fungicides, no control of rice blast disease, and no transformation and application of rice production. and other problems, to achieve the effect of preventing the expansion of rice blast fungus mycelium, preventing and reducing rice blast, protecting the agricultural ecological environment and human health

Inactive Publication Date: 2017-09-01
JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the 1980s, the research on botanical insecticides has been relatively in-depth, but the research on botanical fungicides is relatively slow, and it is mainly in the stage of laboratory research and has not been applied in production.
[0011] However, these studies and patents do not involve the use of "ethanol extracts of Sophora sophora and Beef Heart Puzi" as fungicides to control rice blast, and the use of plant extracts to prevent and control crop diseases is mostly in the laboratory research stage, not in the field. Tested and not applied to rice production
At the same time, there is no research report on the use of "ethanol extracts of Sophora japonica and Niuxinpuzi" as fungicides to control rice blast

Method used

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  • Botanical fungicide for preventing and treating rice blast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: prepare the botanical fungicide of preventing and treating rice blast according to the following steps

[0031] (1) Take 10 kg of bitter bean powder with a crushing fineness of 80 mesh, 90 kg of beef heart puckery powder with a crushing fineness of 80 mesh, and mix and stir evenly;

[0032] (2) Put the mixed powder of bitter bean powder and beef heart powder into a plastic bucket with a volume of 1000L;

[0033] (3) Inject 350L of 95% ethanol solution into the plastic bucket;

[0034] (4) After soaking for 12 hours at a temperature of 25°C, pass through a 100-mesh filter to filter out the extract A of Sophora japonica and Niuxinpuzi extracted by ethanol;

[0035] (5) Add 350L of ethanol solution with a mass concentration of 95% to the filter residue of extract A filtered out in step (4), soak for 12 hours at 25°C, pass through a 100-mesh filter, and filter out the ethanol-extracted Sophora japonica and Niuxinpuzi. Extract B;

[0036] (6) Fully mix the e...

Embodiment 2

[0042] Embodiment 2: prepare the botanical fungicide of preventing and treating rice blast according to the following steps

[0043] (1) Take 20 kg of bitter bean powder with a crushing fineness of 80 mesh, and 80 kg of beef heart puckery powder with a crushing fineness of 80 mesh, mix and stir evenly;

[0044] (2) Put the mixed powder of bitter bean powder and beef heart powder into a plastic bucket with a volume of 1000L;

[0045] (3) Inject 350L of 95% ethanol solution into the plastic bucket;

[0046] (4) After soaking for 12 hours at a temperature of 25°C, pass through a 100-mesh filter to filter out the extract A of Sophora japonica and Niuxinpuzi extracted by ethanol;

[0047] (5) Add 350L of ethanol solution with a mass concentration of 95% to the filter residue of the extraction solution A filtered out in step (4), soak at 25°C for 12 hours, and filter out the extraction of the ethanol-extracted Sophora japonica and Niuxinpozi through a 100-mesh filter Liquid B;

...

Embodiment 3

[0054] Embodiment 3: prepare the botanical fungicide of preventing and treating rice blast according to the following steps

[0055] (1) Take 30 kg of bitter bean powder with a crushing fineness of 80 mesh, 70 kg of beef heart pod powder with a crushing fineness of 80 mesh, mix and stir evenly;

[0056] (2) Put the mixed powder of bitter bean powder and beef heart powder into a plastic bucket with a volume of 1000L;

[0057] (3) Inject 350L of 95% ethanol solution into the plastic bucket;

[0058] (4) After soaking for 12 hours at a temperature of 25°C, filter out the extract A of Sophora japonica and Niuxinpozi extracted by ethanol through a 100-mesh filter;

[0059] (5) Add 350L of ethanol solution with a mass concentration of 95% to the filter residue of the extraction solution A filtered out in step (4), soak at 25°C for 12 hours, and filter out the extraction of the ethanol-extracted Sophora japonica and Niuxinpozi through a 100-mesh filter Liquid B;

[0060] (6) Fully m...

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Abstract

The invention discloses a botanical fungicide for preventing and treating rice blast. The botanical fungicide is prepared from the following component of ethanol extract of sophora alopecuroides powder and cynanchum komarovii powder, wherein the ethanol extract is prepared by smashing the sophora alopecuroides powder and the cynanchum komarovii powder, both of which have the fineness of 80 meshes, matching the sophora alopecuroides powder and the cynanchum komarovii powder according to a proportion of (1 to 9) to (9 to 1) in parts by weight, uniformly stirring and carrying out twice extracting and mixing through an ethanol solution of which the concentration is 95 percent. The botanical fungicide for preventing and treating the rice blast, disclosed by the invention, can be sprayed to rice leaves during a rice crevasse stage and a full heading stage, magnaporthe oryzae can be killed, spot expansion can be inhibited, and occurrence and harm of the rice blast can be reduced.

Description

technical field [0001] The invention relates to a fungicide, in particular to a botanical fungicide for preventing and treating rice blast. Background technique [0002] Rice (Oryza sativa) is one of the main food crops in the world (including my country). Rice blast (Riceblast) is a catastrophic disease of rice caused by Magnaporthe oryzae. The disease has a long incubation period, multiple disease sites, wide distribution and serious harm. Worldwide, the annual production of rice is reduced by about 157 million tons. Human beings have made unremitting efforts to control rice blast, and the main work has focused on breeding resistant varieties of rice and developing blasticides. So far, humans have discovered 73 rice blast resistance genes, of which 8 genes, namely pib, pita, pikh, pi9, pi2 / pidt, pid2, pi36 and pi37, have been cloned (Shi B J, Wang G L. Comparative study of genes expressed from rice fungus-resistant and susceptible lines during interactions with Magnapor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01P3/00A01G13/00A01G7/06
CPCA01N65/00A01G7/06A01G13/00A01N65/20A01N2300/00
Inventor 吴传万彭杰顾大路王伟中杜小凤汪国莲郭小山
Owner JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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