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Botanical pesticide and preparation method thereof

A plant-based, pesticide technology, applied in the fields of botanical equipment and methods, plant growth regulators, chemicals for biological control, etc., can solve problems such as high efficiency and low toxicity

Inactive Publication Date: 2020-10-27
FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are no plant-based pesticides with high efficiency and low toxicity for diseases such as cucurbit crop blight and rice brown spot.

Method used

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  • Botanical pesticide and preparation method thereof
  • Botanical pesticide and preparation method thereof
  • Botanical pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Preparation of botanical pesticides

[0031] Prepare botanical pesticides according to the following steps:

[0032] (1) Extraction: Dry the rhizomes of oleander flower and Sophora flavescens in an oven at 70°C, pulverize them into powder with a pulverizer, and pass through a 100-mesh sieve;

[0033] Add 15 times the volume fraction of 60% ethanol aqueous solution to oleander pollen (that is, add 15mL 60% ethanol aqueous solution to 1g of oleander pollen), and leaching with ultrasonic (power 100Hz) three times at 25°C, Each time for 24 hours, the extracts were combined and filtered to obtain the extract of oleander flower;

[0034] Add 10 times the volume fraction of 60% ethanol aqueous solution to flavescens powder (that is, add 10mL 60% ethanol aqueous solution to 1g of flavescens powder), and leaching three times by ultrasonic (power 100Hz) at 25°C, each time After 24 hours, the extracts were combined and filtered to obtain the Sophora flavescens extr...

Embodiment 2

[0038] Embodiment 2: Preparation of botanical pesticides

[0039] Prepare botanical pesticides according to the following steps:

[0040] (1) Extraction: Dry the rhizome of oleander flower and the fruit of Sophora flavescens respectively in an oven at 70°C, pulverize them into powder with a pulverizer, and pass through a 100-mesh sieve;

[0041]Add 15 times the volume fraction of 80% ethanol aqueous solution to oleander pollen (that is, add 15mL 80% ethanol aqueous solution to 1g of oleander pollen), and leaching with ultrasonic (power 100Hz) three times at 25°C, Each time for 12 hours, the extracts were combined and filtered to obtain the extract of oleander flowers;

[0042] Add 8 times the volume fraction of 80% ethanol aqueous solution to flavescens root powder (that is, add 10mL 80% ethanol aqueous solution to 1g of flavescens root powder), and ultrasonically extract three times at 25°C (power 100Hz). After 12 hours, the extracts were combined and filtered to obtain Sop...

Embodiment 3

[0046] Embodiment 3: Preparation of botanical pesticides

[0047] Prepare botanical pesticides according to the following steps:

[0048] (1) Extraction: Dry the rhizome of oleander flower and the fruit of Sophora flavescens respectively in an oven at 60°C, pulverize them into powder with a pulverizer, and pass through a 40-mesh sieve;

[0049] Add 10 times the volume fraction of 70% ethanol aqueous solution to oleander pollen (that is, add 10 mL of 70% ethanol aqueous solution to 1 g of oleander pollen), and leaching three times by ultrasonic (power 100 Hz) at 25 °C , 24 hours each time, combined extracts, filtered to obtain oleander flower extract;

[0050] Add 10 times the volume fraction of 70% ethanol aqueous solution to the flavescens powder (that is, add 10 mL of 70% ethanol aqueous solution to 1 g of flavescens powder), and ultrasonically extract three times at 25 ° C (power 100 Hz), 24 hours each time , combined extracts, filtered to obtain Sophora flavescens extrac...

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Abstract

The invention relates to the technical field of pesticide preparation, in particular to a botanical pesticide and a preparation method thereof, and overcomes the defect that no efficient and low-toxicity botanical pesticide for diseases such as gummy stem blight and brown streak of cucurbitaceous crops exists in the prior art. The method comprises the following steps: S1, extracting; S2, concentrating; S3, extraction; S4 mixing. The invention aims to provide the botanical pesticide and the preparation method thereof, natural components are used as main raw materials, and no medium-high toxicity chemical synthetic component is added. The preparation method comprises the following steps: mixing oleander flower extract, radix sophorae flavescentis extract and cnidium lactone; one or more of polyoxin and spinosad can also be added, and the developed compound plant type medicament has a synergistic effect, has the characteristics of safety, broad spectrum and high efficiency, is suitable for pests such as melon aphids and plutella xylostella, and can also be used for effectively preventing and treating diseases such as melon gummy stem blight and rice brown streak.

Description

technical field [0001] The invention relates to the technical field of pesticide preparation, in particular to a plant-based pesticide and a preparation method thereof. Background technique [0002] Pesticides are an indispensable means of production in agricultural production. Pesticides include chemical pesticides and biological pesticides. Among them, chemical pesticides are likely to cause a series of problems such as environmental pollution and drug resistance, which not only seriously threatens the ecological environment, but also endangers human safety. In contrast, as a biological source pesticide, botanical pesticides have the advantages of high selectivity, low toxicity, easy degradation, and resistance to resistance. In addition to containing active ingredients, their products can effectively prevent and control pests and weeds, and also Contains a large number of ingredients that can regulate plant growth, such as plant organic acids, amino acids, tannins, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01N43/16A01N47/12A01N43/22A01P3/00A01P7/04
CPCA01N43/16A01N43/22A01N47/12A01N65/00A01N65/08A01N65/20
Inventor 赵茜吴建忠姜树坤张丽艳王立志杨贤莉李明贤李忠杰迟立勇李瑞
Owner FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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