Pesticide composition and application thereof

A pesticide composition and the technology of the composition are applied in the field of pesticides to achieve the effects of realizing resources, promoting sustainable development and realizing full utilization

Inactive Publication Date: 2018-02-06
LIER CROPSCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But at present, there is still a lot of room for improvement in the composition using the extract of Polygonum cuspidatum for the prevention and treatment of plant diseases, and its drug efficacy still needs to be improved.

Method used

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  • Pesticide composition and application thereof
  • Pesticide composition and application thereof
  • Pesticide composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Pulverization: pulverize the raw material of Polygonum cuspidatum to 8-10 mesh, set aside;

[0031] (2) Enzymolysis: Put the pulverized Polygonum cuspidatum powder into a fermenter, ferment with hydrolytic biological enzymes for 5 days under warm water conditions, and filter to obtain fermented slag. In the fermentation step, the addition amount of hydrolytic biological enzymes is: Add 5 g of hydrolyzed biological enzymes to 1 kg of the Polygonum cuspidatum powder, and control the temperature of the fermentation process at 35-45°C;

[0032](3) Extraction: take the fermented residue after fermentation, add 8 times the amount of 80% ethanol, reflux and extract at 80° C. for 3 times, each time for 2 hours, and combine the extracts;

[0033] (4) Concentration and drying: Concentrate and dry the extract after 3) under reduced pressure, reclaim the solvent, and obtain the extract composition of Polygonum cuspidatum;

Embodiment 2

[0035] (1) Pulverization: pulverize the raw material of Polygonum cuspidatum to 8-10 mesh, set aside;

[0036] (2) Acidolysis: Put the pulverized Polygonum cuspidatum powder into a hydrolysis tank, add dilute hydrochloric acid to catalyze the reaction for 8 hours under certain conditions, and filter to obtain hydrolysis slag. In the acidolysis step, the amount of acid added is: The amount of acid added to the Polygonum cuspidatum powder is 8g, and the temperature of acidolysis is controlled at 50-55°C;

[0037] (3) Extraction: Take the hydrolysis residue after acid hydrolysis, add 6 times the amount of ethyl acetate, stir and extract at 60°C for 3 times, each time for 1.5h, and combine the extracts;

[0038] (4) Concentration and drying: Concentrate and dry the extract after 3) under reduced pressure, reclaim the solvent, and obtain the extract composition of Polygonum cuspidatum;

Embodiment 3

[0040] (1) Pulverization: pulverize the raw material of Polygonum cuspidatum to 8-10 mesh, set aside;

[0041] (2) Microbial treatment: send the pulverized Polygonum cuspidatum powder into a fermenter, add 2 times the amount of water, then add 1.5% of Aspergillus niger with a bacterial age of 40h, ferment at 35°C for 56h, and filter to obtain fermented residue;

[0042] (3) Extraction: take the fermentation residue after microbial treatment, add 5 times the amount of acetone and stir and extract at 40°C for 6 hours to obtain the extract;

[0043] (4) Concentration and drying: Concentrate and dry the extract after 3) under reduced pressure, reclaim the solvent, and obtain the extract composition of Polygonum cuspidatum;

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Abstract

The invention discloses pesticide composition and an application thereof and relates to the technical field of pesticide compounding. The composition is derived from polygonaceae polygonum cuspidatum.An extraction process of the composition comprises the steps as follows: 1) treatment: rhizomes of polygonum cuspidatum are crushed to be in a certain particle size and then subjected to acid hydrolysis, enzymolysis or microbial fermentation conversion treatment; 2) extraction: the polygonum cuspidatum treated in step 1) is subjected to extraction with an extraction solvent and polygonum cuspidatum extract composition is obtained; 3) the solvent in the treated polygonum cuspidatum extract is partially or completely removed, and the pesticide composition is obtained. Research finds that the components of the composition obtained after glycoside ligand is converted into non-glycoside ligand through acid hydrolysis, enzymolysis or microbial fermentation conversion become simple, stability ofall components in the composition is guaranteed, and the utilization rate of the polygonum cuspidatum extract is increased.

Description

technical field [0001] The invention relates to a pesticide composition and its application, in particular to a pesticide composition obtained by extracting Polygonum cuspidatum through fermentation and transformation treatment and its application, and belongs to the technical field of pesticides. Background technique [0002] With the global attention to resources and the environment, the sustainable development strategy has become the theme of the common response and recognition of all countries in the world. "Organic agriculture" and "green food" have become the direction of agricultural development. Biogenic pesticides whose residues are harmonious with the environment have gradually become a new direction of pesticide research. At present, the development and application of botanical pesticides using natural secondary metabolites is an important direction and research hotspot in the creation of biopesticides. However, in actual production, there are often problems such...

Claims

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Application Information

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IPC IPC(8): A01N65/30A01N63/02A01P1/00A01P3/00
CPCA01N63/10A01N65/00A01N65/30A01N2300/00
Inventor 梁灵侯燕华殷勇左元明杨晓清白珂珂王兴伍邱丰
Owner LIER CROPSCIENCE CO LTD
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