Liquid slow-release agent for sex pheromone of barber borer and its preparation method

A pheromone and sustained-release technology, applied in the field of pesticides, can solve the problems of inability to use mechanical intubation, a lot of manpower and time, and inability to adapt to plant protection mechanization, and achieve the effect of saving raw materials, high initial content, and saving reagent costs.

Active Publication Date: 2020-04-21
广东省科学院南繁种业研究所
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although intubation has a certain effect on the control of bar borer, but for the height and density of sugarcane in the middle and late stages of sugarcane growth, mechanical intubation cannot be used, which requires a lot of manpower and time
Now sugarcane production is accelerating the use of mechanization (such as plant protection drones), and the current dosage form cannot adapt to plant protection mechanization

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
  • Liquid slow-release agent for sex pheromone of barber borer and its preparation method
  • Liquid slow-release agent for sex pheromone of barber borer and its preparation method
  • Liquid slow-release agent for sex pheromone of barber borer and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The bariatric sex pheromone liquid sustained release agent of the present embodiment is prepared by the following method:

[0044] Take the biodegradable polymer PLA ( J9604E) 4.5g, add 42ml of dichloromethane (55.6g), stir and dissolve at 12°C, then add 1g of sex pheromone, add 1g of oily anti-UV agent, 1g of butyl hydroxyanisole BHA, and then add 1wt% hydroxyanisole Add 1 g of water-based anti-UV agent to 90 ml (90 g) of an aqueous solution of propyl methylcellulose, and slowly raise the temperature of the resulting mixture to 32° C., and stir for 2.5 h at a stirring speed of 300 rpm / min.

Embodiment 2

[0046] The bariatric sex pheromone liquid sustained release agent of the present embodiment is prepared by the following method:

[0047] Take 4.5g of biodegradable polymer PBS (Bionolle 3001), add 42ml of dichloromethane (55.6g), stir and dissolve at 12°C, then add 1g of sex pheromone, add 1g of oily anti-UV agent, 1g of butyl hydroxyl Anisole BHA, then add 90ml (90g) of 1wt% hydroxypropyl methylcellulose aqueous solution, add 1g of water-based anti-UV agent, slowly heat up the resulting mixture to 32°C, and stir for 2.5h at a stirring speed of 300rpm / min .

Embodiment 3

[0057] Evaluate the effect and performance of the bariatric sex pheromone liquid slow-release agent or barbarian sex pheromone microspheres prepared in Example 1-2 and Comparative Example 1-2.

[0058] 1. Indoor and outdoor release test

[0059] 1. Indoor release test

[0060] Experimental method 1: Spray evenly the liquid slow-release agent of the bariatric sex pheromone or the bariatric sex pheromone microspheres on a special board of a certain specification, place it in a fume hood with a constant wind speed (wind speed is about 8km / h), and set it at 0 , 7, 14, 21, 28, 35, 42, 49, and 56 days use GC-MS to measure the residual amount of sex pheromone in barworm, determine the release stability and duration of release of sex pheromone in barworm, and refer to the method of residue test Vlieger J. J. de (2008). The experiments were carried out at 20°C and 30°C, respectively.

[0061] Experimental method 2: Spray evenly the liquid sustained-release agent of the sex pheromone...

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 relates to a chilo venosatus sex pheromone liquid slow-release agent and a preparation method thereof. The liquid slow-release agent is prepared from the following raw materials in partsby weight: 0.7-1.2 parts of chilo venosatus sex pheromone, 3-6 parts of a biodegradable polymer, 0.7-1.5 parts of an oily anti-UV agent, 0.7-1.5 parts of a water-based anti-UV agent, 0.7-1.5 parts ofbutyl hydroxyl anisole, and 130-160 parts of a solvent, wherein the biodegradable polymer is selected from polylactic acid and / or poly(butylene succinate); and the solvent is a mixed solution of dichloromethane and a hydroxypropyl methyl cellulose aqueous solution, the mass ratio of the dichloromethane to the hydroxypropyl methyl cellulose aqueous solution is 1:(1-2), and the mass concentration of the hydroxypropyl methyl cellulose in the hydroxypropyl methyl cellulose aqueous solution is 0.7-1.3%. The liquid slow-release agent provided by the invention has a long release lasting period, caneffectively prevent and control chilo venosatus pests, and can save labor and time through mechanical spraying.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a liquid slow-release agent of bariatric sex pheromone and a preparation method thereof. Background technique [0002] Sugarcane is the most important sugar crop in my country, and sucrose accounts for more than 92% of the country's total sugar production every year. It plays a very important role in the country's sugar supply, but the annual economic losses caused by sugarcane borers are as high as tens of billions of yuan, of which Sugarcane bar borer (Chilo venosatus Walker) is the most serious damage and causes the most economic losses. In the sugarcane area of ​​South China, the sugarcane borer has four generations a year from March to November, causing dead hearts in the seedling stage and dead sheaths or knots in the growth stage. The damage to sugarcane is particularly serious in the middle and late stages of growth. The rate of damaged plants reaches 70%-80%, almost reaches 100...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01N31/02A01N25/22A01N25/02A01P7/04A01P19/00
CPCA01N25/02A01N25/22A01N31/02A01N37/02
Inventor 胡玉伟管楚雄毛永凯许汉亮毛玉玲李继虎林明江黄志武王蕾
Owner 广东省科学院南繁种业研究所
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