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Rosemary essential oil micro-emulsion for preventing and controlling plant diseases and pests, and preparation method thereof

A technology of rosemary essential oil and microemulsion, applied in botany equipment and methods, plant growth regulators, insecticides, etc., can solve the problem that rosemary essential oil cannot be directly applied to plant diseases and insect pests, and achieve good control of diseases and insect pests ability, easy promotion and application, and low-cost effects

Inactive Publication Date: 2020-02-25
贵州省油料研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rosemary essential oil microemulsion for preventing and controlling plant diseases and insect pests and a preparation method thereof, the rosemary essential oil microemulsion has the advantages of stability, transparency, good solubility, etc. Obtained, the process is simple, and the cost is low, so as to solve the problem that rosemary essential oil cannot be directly applied to the control of plant diseases and insect pests

Method used

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  • Rosemary essential oil micro-emulsion for preventing and controlling plant diseases and pests, and preparation method thereof
  • Rosemary essential oil micro-emulsion for preventing and controlling plant diseases and pests, and preparation method thereof

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Embodiment Construction

[0019] A rosemary essential oil microemulsion for preventing and controlling plant diseases and insect pests, the mass ratio of the components of the essential oil microemulsion is: rosemary essential oil: 10-27, cosolvent ethanol: 10-40, surfactant Tween 80: 21-65, surfactant Span 60 or Span 80: 8-19, ultrapure water: 5-29. Weigh according to the proportion of Example 1-8, mix the weighed Tween 80 and Span 60 / 80 at room temperature to obtain a mixed solution; stir and mix the weighed rosemary essential oil and cosolvent at low speed After uniformity, slowly add the surfactant mixture and water in turn, and stir on a magnetic stirrer while adding, to obtain a clear and transparent solution, which is the rosemary essential oil microemulsion.

[0020] The component mass ratio of embodiment 1-8 is as follows:

[0021] rosemary essential oil ethanol Tween 80 Pan water Example 1 10 10 47 Span 80:18 15 Example 2 13 13 42 Span 80:16 17 E...

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Abstract

The invention discloses a rosemary essential oil micro-emulsion for preventing and controlling plant diseases and pests, and a preparation method thereof. The rosemary essential oil micro-emulsion comprises, by mass, 10-27 parts of rosemary essential oil, 10-40 parts of cosolvent, 21-65 parts of a surfactant Tween 80, 8-19 parts of a surfactant Span 60 or 80 and 5-29 parts of water. The hydrophilic-lipophilic balance of a mixture formed by mixing the two surfactants is 12. The cosolvent is ethanol. Ethanol is a short-chain alcohol cosurfactant, and can improve the solubilizing capacity of themicro-emulsion, so the rosemary essential oil micro-emulsion is stable and transparent, and has good solubility; the rosemary essential oil contains 1,8-cineole, alpha-pinene and camphor, so growth ofpoisonous moths can be inhibited, and eggs of lice are killed. The problem that the rosemary essential oil cannot be directly applied to prevention and control of plant diseases and pests is solved.The preparation method has the advantages of easily available raw materials, simple process and low cost.

Description

technical field [0001] The invention relates to the field of biological control, in particular to a rosemary essential oil microemulsion for preventing and controlling plant diseases and insect pests and a preparation method thereof. Background technique [0002] In recent years, the area of ​​tea gardens in my country has expanded rapidly, and the tea industry has developed rapidly. At present, there are about 44 million mu of tea gardens in the country, and the annual tea output is about 2.6 million tons, accounting for 60% and 45% of the world's total respectively, ranking first in the world. Especially in Guizhou, many new tea gardens have been opened since 2005. As of the end of 2018, the total area of ​​tea gardens in Guizhou Province was 7.52 million mu, ranking first in China for six consecutive years. They are concentrated in the Wuling mountainous area with the cores of Zunyi, Tongren and Qiannan in Guizhou. In addition, the growth area of ​​tea gardens in Hubei, ...

Claims

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Application Information

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IPC IPC(8): A01N65/22A01N25/04A01P7/04
CPCA01N25/04A01N65/00A01N65/22
Inventor 于二汝李德文冷家归王少铭罗莉斯侯颖辉黄泽素赵志清
Owner 贵州省油料研究所
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