Application of xanthoxylin as rice planthopper repellent

A technology of prickly ash oil and rice planthopper, applied in animal repellent, application, pest repellant, etc., can solve the problems of unreported application and achieve simple preparation, good repellent effect, and environmental friendliness

Active Publication Date: 2020-05-01
湖北双水双绿生物科技有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an active ingredient in plants such as Zanthoxylum bungeanum, the application of Xanth

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of xanthoxylin as rice planthopper repellent
  • Application of xanthoxylin as rice planthopper repellent
  • Application of xanthoxylin as rice planthopper repellent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Determination of the repellent activity of prickly ash oil against brown planthopper and planthopper natural enemy Lygus spp.

[0028] 1.1 Materials and methods

[0029] The tested insects were indoor populations of brown planthopper and green Lygus black-shouldered. Nilaparvata lugens took 3-instar nymphs and 7-day-old female adults to conduct repellent tests, and green Lygus black-shouldered nymphs took 3-instar nymphs and 7-day-old male and female adults to repel respectively. Test; the test compound is Zanthoxylum oleifera, which was purchased from Tokyo Chemical Industry Co., Ltd., Japan. The control repellent is the ethanol extract of Zanthoxylum bungeanum extracted in the laboratory, which is a soluble oily concentrate.

[0030] Bioactivity assay method:

[0031] The repellent activity was measured by stem spray method, see figure 1 . Two rice plants with a height of 30 cm are transplanted into a flower pot with a diameter of 18 cm at a distance of...

Embodiment 2

[0042] Example 2: Determination of the repellent activity of prickly ash oil to white-backed planthopper

[0043] 2.1 Materials and methods

[0044]The tested insects were indoor populations of white-backed planthoppers, and the 3rd-instar nymphs and 7-day-old female adults were used for repellent tests; the test compound was Zanthoxylum oleifera, which was purchased from Tokyo Chemical Industry Co., Ltd., Japan.

[0045] Bioactivity assay method:

[0046] The relevant repellent activity was determined by the stem spray method, and the relevant repellent activity test device is shown in figure 1 . Two rice plants with a height of 30 cm are transplanted into a flower pot with a diameter of 18 cm at a distance of 12 cm, and a transparent cylindrical polyvinyl chloride bucket with openings at both ends is placed on it. Take an appropriate amount of Zanthoxylum oleifera, add acetone to dissolve it in a 1:1 mass ratio, add Tween 20 to make a 20mg / ml Zanthoxylum bungeanum mother ...

Embodiment 3

[0055] Example 3: Determination of the repellent activity of prickly ash oil to SBPH

[0056] 3.1 Materials and methods

[0057] The tested insects were indoor populations of SBPH, and the 3rd-instar nymphs and 7-day-old female adults were used for the repellent test; the test compound Zanthoxylum oleifera was purchased from Tokyo Chemical Industry Co., Ltd., Japan.

[0058] Bioactivity assay method:

[0059] The relevant repellent activity was determined by the stem spray method, and the relevant repellent activity test device is shown in figure 1 . Two rice plants with a height of 30 cm are transplanted into a flower pot with a diameter of 18 cm at a distance of 12 cm, and a transparent cylindrical polyvinyl chloride bucket with openings at both ends is placed on it. Take an appropriate amount of Zanthoxylum oleifera, add acetone to dissolve it in a 1:1 mass ratio, add Tween 20 to make a 20mg / ml Zanthoxylum bungeanum mother solution containing 1wt% Tween 20, and then add ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an application of xanthoxylin as a rice planthopper repellent. The field use concentration of the xanthoxylin in prevention and treatment of rice planthoppers is 10-1000 ppm ofeffective components. Under a use concentration of 1000 ppm, the xanthoxylin can reach repelling rates of 81.21%, 77.50% and 65.23% to three kinds of female adult rice planthoppers, i.e., brown planthoppers, sogatella furcifera and laodelphax striatellus respectively after the xanthoxylin is sprayed for 24 hours; and the xanthoxylin has a strong repelling effect. The rice planthopper repellent compound, namely the xanthoxylin provided by the invention is an extraction component of natural plants; and a rice planthopper repellent prepared from the xanthoxylin has the advantages of good prevention and treatment effects, simple preparation, greenness, safety, effectiveness, environmental friendliness and the like.

Description

technical field [0001] The invention relates to the field of green prevention and control of pests, in particular to the application of plant-derived prickly ash oil as a repellant for rice planthoppers. Background technique [0002] Rice is the second largest food crop in the world. In the production process of rice, there are harmful insects in each growth stage, resulting in a decline in the yield and quality of rice. In recent years, the major pests that have seriously damaged rice in my country are rice planthoppers, rice leaf rollers, and rice stem borers. These pests have caused 15%-25% yield loss to rice all the year round. There are mainly three kinds of rice planthoppers, namely brown planthopper, white-backed planthopper and brown planthopper, and all three planthoppers belong to the pests of the family Planthopper of the order Homoptera. Rice planthoppers mainly use piercing-sucking mouthparts to pierce and suck rice phloem juice, consume rice nutrients, cause t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01N35/04A01N25/06A01P17/00
CPCA01N25/06A01N35/04
Inventor 华红霞赵景蔡万伦
Owner 湖北双水双绿生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap