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Biological bactericide for controlling rice blast and preparation method thereof

A biological fungicide, a technology for rice blast disease, applied in the field of pesticides, can solve the problems of easy residues, great harm to humans and animals, etc., and achieve the effects of low residues, less raw material consumption, and inhibition of elastase activity

Inactive Publication Date: 2017-03-15
ZHENGZHOU SIBIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patents still use chemical pesticides, which are easy to remain and cause great harm to humans and animals.

Method used

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  • Biological bactericide for controlling rice blast and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A biological fungicide for controlling rice blast is made from the following raw materials in parts by weight:

[0028] 6 parts of Phytophthora root, 3 parts of Boluohui root, 7 parts of Chuangu root, 8 parts of Veratrum root, 7 parts of Scutellaria baicalensis, 10 parts of Forsythia, 10 parts of Radix Radix, 8 parts of purslane, 5 parts of surfactant and water 80 servings.

[0029] The surfactant is Tween-80.

[0030] The preparation method of the above-mentioned biological fungicide for controlling rice blast comprises the following steps:

[0031] (1) Weigh various raw materials of traditional Chinese medicines in said parts by weight, grind them to 60 mesh, and mix them uniformly;

[0032] (2) Add 10 times the weight of water to the mixture in step (1) and soak for 1 hour, conduct ultra-high pressure extraction for 5 minutes, filter, and collect the extract; the ultra-high pressure extraction conditions are: 50°C, pressure 200MPa;

[0033] (3) Concentrate the ext...

Embodiment 2

[0035] A biological fungicide for controlling rice blast is made from the following raw materials in parts by weight:

[0036] 6 parts of Phytophthora root, 3 parts of Boluohui root, 7 parts of Chuangu root, 8 parts of Veratrum root, 7 parts of Scutellaria baicalensis, 10 parts of Forsythia, 10 parts of Radix Radix, 8 parts of purslane, 5 parts of organic solvent, surface active 5 parts of agent, 1 part of thickener and 80 parts of water.

[0037] The organic solvent is ethanol.

[0038] The surfactant is sodium dodecylbenzenesulfonate. .

[0039] The thickener is starch.

[0040] The preparation method of the above-mentioned biological fungicide for controlling rice blast comprises the following steps:

[0041] (1) Weigh various raw materials of traditional Chinese medicines in said parts by weight, grind them to 40 mesh, and mix them uniformly;

[0042] (2) Add 8 times the weight of water to the mixture in step (1) and soak for 1.5 hours, conduct ultra-high pressure ext...

Embodiment 3

[0045] A biological fungicide for controlling rice blast is made from the following raw materials in parts by weight:

[0046] 7 parts of Phytophthora root, 4 parts of Boluohui root, 8 parts of Chuangu root, 9 parts of Veratrum root, 8 parts of Scutellaria baicalensis, 12 parts of Forsythia, 11 parts of Radix Radix, 9 parts of purslane, 6 parts of organic solvent, surface active 6 parts of agent, 2 parts of thickener and 90 parts of water.

[0047] Described organic solvent is glycerol.

[0048] The surfactant is sodium lignosulfonate.

[0049] The thickener is dextrin.

[0050] The preparation method of the above-mentioned biological fungicide for controlling rice blast comprises the following steps:

[0051] (1) Weigh various raw materials of traditional Chinese medicines in said parts by weight, grind them to 80 mesh, and mix them uniformly;

[0052] (2) Add 12 times the weight of water to the mixture in step (1) and soak for 2 hours, conduct ultra-high pressure extract...

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Abstract

The invention belongs to the technical field of pesticides and specifically relates to a biological bactericide for controlling rice blast and a preparation method thereof. The biological bactericide for controlling rice blast is prepared from the following raw materials (by weight): 6-12 parts of poke root, 3-6 parts of Macleaya cordata root, 7-13 parts of radix Coix lacrymajobi, 8-15 parts of falsehellebore root and rhizome, 7-13 parts of Scutellaria baicalensis, 10-20 parts of fructus forsythia, 10-15 parts of isatis root, 8-12 parts of purslane, 0-20 parts of an organic solvent, 5-10 parts of a surfactant, 0-8 parts of a thickening agent and 80-120 parts of water. The biological bactericide has remarkable sterilizing effect, has no residue, is easy to degrade, will not generate drug resistance, has long persistent period, is safe to human and livestock, and can be promoted and applied.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a biological fungicide for preventing and treating rice blast and a preparation method thereof. Background technique [0002] Rice blast is one of the important diseases of rice, which can cause a large yield reduction, 40%~50% yield reduction in severe cases, or even grain failure. It mainly damages leaves, stems, and ears. Neck plague or joint plague occurs early and severe, which can cause white ears and even extinction. [0003] Chinese patent CN105076259A discloses a fungicide for rice blast, which consists of the active ingredient phenoxystrobin and plant extracts, the weight ratio of phenoxystrobin and plant extracts is 0.1-0.5:6-12, and the plant The extract is a mixture of pokeweed root extract, burnet rhizome extract, Prunella vulgaris fruit ear extract, chamaejasma root extract and Digus bark root bark extract, and the pokeweed root extract: burnet ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01P3/00
CPCA01N65/00A01N65/44A01N2300/00
Inventor 丁艺涵马新攀马成耀郭便荣
Owner ZHENGZHOU SIBIAN TECH CO LTD
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