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Botanical fungicide capable of controlling Phyricularia oryzae

A botanical fungicide, a technology for rice blast disease, applied in the field of pesticides, can solve problems such as unsatisfactory control of rice blast disease, and achieve the effects of scientific and reasonable compatibility, long lasting effect, and widespread sterilization.

Inactive Publication Date: 2018-02-23
LIUZHOU HUASHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used agents kasugamycin, thiophanate-methyl, and tricyclazole have been used for many years, and have developed resistance, which is not ideal for the control of rice blast

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A botanical fungicide for preventing and treating rice blast, which is made from the following raw materials in parts by weight: 7 parts of Mujiangzi, 2 parts of Litsea cubeba, 3 parts of Mianma Guanzhong, 6 parts of Cocklebur, 2 parts of Rehmannia glutinosa, 5 parts of thuja leaves, 3 parts of cinnamon, 6 parts of Gynostemma pentaphyllum, 5 parts of Eupatorium adenophorum, 5 parts of madder, and 1 part of synergist.

[0013] The synergist is chitosan.

[0014] The preparation method of the botanical fungicide is as follows: dry and pulverize the above-mentioned raw materials except the synergist, soak in ethanol for 3 hours, carry out cyclic extraction for 3 times, each extraction is 50 minutes, combine the extracts, and extract The solution is vacuum concentrated in a rotary evaporator, and a synergist is added to the concentrated solution, which is evenly stirred to obtain a botanical fungicide.

Embodiment 2

[0016] A botanical fungicide for preventing and treating rice blast, which is made of the following raw materials in parts by weight: 8 parts of Mujiangzi, 2.5 parts of Litsea cubeba, 4 parts of Mianma Guanzhong, 7 parts of Cocklebur, 2.5 parts of Rehmannia glutinosa, 6 parts of thuja leaves, 4 parts of cinnamon, 7.5 parts of Jiaogulan, 6.5 parts of Eupatorium adenophorum, 6.5 parts of madder, and 2 parts of synergist.

[0017] The synergist is chitosan.

[0018] The preparation method of the botanical fungicide is as follows: dry and pulverize the above-mentioned raw materials except the synergist, soak in ethanol for 4.5 hours, carry out cyclic extraction 4 times, extract 55 minutes each time, combine the extracts, extract The solution is vacuum concentrated in a rotary evaporator, and a synergist is added to the concentrated solution, which is evenly stirred to obtain a botanical fungicide.

Embodiment 3

[0020] A botanical fungicide for preventing and treating rice blast, which is made from the following raw materials in parts by weight: 9 parts of Mujiangzi, 3 parts of Litsea cubeba, 5 parts of Mianma Guanzhong, 8 parts of Cocklebur, 3 parts of Rehmannia glutinosa, 7 parts of thuja leaves, 5 parts of cinnamon, 9 parts of Jiaogulan, 8 parts of Eupatorium adenophorum, 8 parts of madder, and 3 parts of synergist.

[0021] The synergist is chitosan oligosaccharide.

[0022] The preparation method of the botanical fungicide is as follows: dry and pulverize the above-mentioned raw materials except the synergist, soak in ethanol for 6 hours, carry out cyclic extraction 4 times, extract 60 minutes each time, combine the extracts, extract The solution is vacuum concentrated in a rotary evaporator, and a synergist is added to the concentrated solution, which is evenly stirred to obtain a botanical fungicide.

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PUM

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Abstract

The invention discloses a botanical fungicide capable of controlling Phyricularia oryzae. The botanical fungicide is prepared from, by weight, 7-9 parts of Fructus Litseae, 2-3 parts of fruit of cubeblitsea trees, 3-5 parts of male fern rhizome, 6-8 parts of Xanthium sibiricum Patrin ex Widder, 2-3 parts of unprocessed rehmannia root, 5-7 parts of Cacumen Platycladi, 3-5 parts of Cortex Cinnamomi, 6-9 parts of fiveleaf gynostemma herb, 5-8 parts of Eupatorium adenophora Spreng., 5-8 parts of Radix Rubiae and 1-3 parts of synergists. The botanical fungicide capable of controlling the Phyricularia oryzae has the advantages that the botanical fungicide is scientific and reasonable in compatibility, broad in spectrum, quick in action, long in lasting effect and not resistant to drugs; the botanical fungicide originating from the nature is degradable in nature without polluting the environment and agricultural products and is safe to people and livestock without forming cumulative poisonin the environment and the human bodies.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a botanical fungicide for preventing and treating rice blast. Background technique [0002] Rice blast is one of the important diseases of rice, which can cause a substantial reduction in yield, and in severe cases, the yield can be reduced by 40-50%, or even no grains can be harvested. Occurs in all rice regions in the world, most of which occur in leaves and nodes, and can cause different degrees of yield reduction after occurrence, especially early and severe occurrence of panicle blast or node blast, which can cause white ears and even yield loss. In recent years, the annual occurrence area of ​​rice blast in Guangdong is not less than 500,000 mu, and it has been increasing year by year. Local outbreaks are not uncommon. At present, rice blast may occur in any year and any season in the province. Mainly damage leaves, stems and ears. Due to different damage p...

Claims

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Application Information

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IPC IPC(8): A01N65/24A01N43/16A01P3/00
CPCA01N65/00A01N43/16A01N65/24A01N2300/00
Inventor 刘瑞华
Owner LIUZHOU HUASHENG TECH