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Botanical pesticide and preparation method thereof

A plant-derived insecticide and plant extract technology, applied in the field of pesticides, can solve the problems of unsuitable industrial production, complex process, poor efficacy and the like, and achieve the effects of low cost, large residual amount and remarkable insecticidal effect.

Inactive Publication Date: 2019-09-20
台州煜农生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Many existing chemically synthesized insecticide varieties are usually relatively single, the capacity makes pests resistant to pesticides, and the drug effect is not good. Some chemically synthesized insecticide varieties have complicated preparation methods and high costs, and are not suitable for industrial production.

Method used

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  • Botanical pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: a kind of botanical insecticide comprises by weight composition:

[0035] 5 parts of ginger, 2 parts of neem, 3 parts of Tripterygium wilfordii, 2 parts of Sophora flavescens, 2 parts of saponins, and 2 parts of chamaejasma.

[0036] The preparation method of above-mentioned a kind of botanical insecticide is carried out according to the following steps:

[0037] 1) Drying ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma separately; the drying temperature is 50°C, and the water content is 6%;

[0038] 2) mixing and pulverizing the dried ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma chamaejasme to obtain a powder mixture; the particle size of the powder mixture is 100 mesh;

[0039] 3) thermally extracting the above-mentioned plant powder and ethanol-water (95:5-40:60) as a solvent to obtain a plant extract;

[0040] 4) Mix 20 parts of plant extract with 500 parts of water, 5 parts of emulsifier (no...

Embodiment 2

[0042] A kind of botanical insecticide, comprising by weight:

[0043] 15 parts of ginger, 6 parts of neem, 7 parts of Tripterygium wilfordii, 5 parts of Sophora flavescens, 5 parts of saponins, and 4 parts of chamaejasma.

[0044] The preparation method of above-mentioned a kind of botanical insecticide is carried out according to the following steps:

[0045] 1) Drying ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma separately; the drying temperature is 60°C, and the water content is 5%;

[0046] 2) Mixing and pulverizing the dried ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma to obtain a powder mixture; the particle size of the powder mixture is 200 mesh;

[0047] 3) thermally extracting the above-mentioned plant powder and ethanol-water (65:35) as a solvent to obtain a plant extract;

[0048] 4) Mix 80 parts of plant extract with 800 parts of water, 2 parts of emulsifier (sorbitan fatty acid ester), 5 parts of wet...

Embodiment 3

[0051] A kind of botanical insecticide, comprising by weight:

[0052] 10 parts of ginger, 5 parts of neem, 5 parts of Tripterygium wilfordii, 4 parts of Sophora flavescens, 4 parts of saponins, and 3 parts of chamaejasma.

[0053] The preparation method of above-mentioned a kind of botanical insecticide is carried out according to the following steps:

[0054] Dry ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma separately; the drying temperature is 70°C, and the water content is 7%;

[0055] 1) mixing and pulverizing dried ginger, neem, tripterygium wilfordii, flavescens, saponins, and chamaejasma chamaejasme to obtain a powder mixture; the particle size of the powder mixture is 400 mesh;

[0056] 2) thermally extracting the above-mentioned plant powder and ethanol-water (40:60) as a solvent to obtain a plant extract;

[0057] 3) Mix 35 parts of plant extract with 700 parts of water, 3 parts of emulsifier (nonylphenol polyoxyethylene ether), 4 part...

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Abstract

The invention discloses a botanical pesticide and a preparation method thereof, and belongs to the technical field of pesticides. The botanical pesticide is prepared from, by weight, 5-15 parts of ginger, 2-6 parts of Azadirachta indica A., 3-7 parts of Common Threewingnut Root, 2-5 parts of Sophora flavescens, 2-5 parts of Gleditsia sinensis and 2-4 parts of Radix Euphorbiae Ebractealatae. The invention also discloses the preparation method of the botanical pesticide. The botanical pesticide uses plants as raw materials, and the active ingredients of the raw materials are all derived from natural plants, so the botanical pesticide has the advantages of low cost, reasonable compatibility, convenience in use, and significant insecticidal effect, mainly has excellent prevention and control effects on pests on vegetable dishes, such as aphids, diamondback moths, oriental armyworms and cabbage caterpillars, also has the characteristics of no phytotoxicity to crops, no residue, no pollution to the environment and long persistence, can be easily naturally degraded when residual on crops exposed to the sun and rain after being used, and is friendly to the environment.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a preparation method of botanical pesticides. Background technique [0002] The active ingredients of botanical insecticides are derived from plants. They have the advantages of being environmentally friendly, generally low toxicity, and not easy to make pests resistant to pesticides in the control of crop pests. They are the preferred insecticides for the production of pollution-free agricultural products. [0003] Our country has long adopted botanical pesticides to protect crops from pests. Chemosynthetic insecticides are favored because of their high efficiency, quick action, and broad insecticidal spectrum, which made the research and use of botanical insecticides fall into a trough. Due to the long-term and unreasonable use of chemically synthesized insecticides, pests have developed resistance to them. Chemically synthesized insecticides are highly toxic, have a long r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/48A01N65/26A01N65/20A01N65/18A01N65/14A01P7/04
CPCA01N65/00A01N65/14A01N65/18A01N65/20A01N65/26A01N65/48Y02A50/30
Inventor 徐德锋纪叶俊
Owner 台州煜农生物科技有限公司
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