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Chilo venosatus sex pheromone liquid slow-release agent and preparation method thereof.

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

Active Publication Date: 2018-06-08
广东省科学院南繁种业研究所
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  • 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

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  • Chilo venosatus sex pheromone liquid slow-release agent and preparation method thereof.
  • Chilo venosatus sex pheromone liquid slow-release agent and preparation method thereof.
  • Chilo venosatus sex pheromone liquid slow-release agent and preparation method thereof.

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The strip borer sex pheromone liquid sustained-release preparation 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, add 1g of the sex pheromone, add 1g of oily anti-UV agent, 1g of butylated hydroxyanisole BHA, and then add 1wt% hydroxyl 90 ml (90 g) of an aqueous solution of propyl methylcellulose, 1 g of an aqueous anti-UV agent was added, the resulting mixture was slowly heated to 32° C., and stirred at a stirring speed of 300 rpm / min for 2.5 h.

Embodiment 2

[0046] The strip borer sex pheromone liquid sustained-release preparation of the present embodiment is prepared by the following method:

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

Embodiment 3

[0057] The effect and performance of the S. japonica liquid sustained-release preparations or S. spp. pheromone microspheres prepared in Examples 1-2 and Comparative Examples 1-2 were evaluated.

[0058] 1. Indoor and outdoor release test

[0059] 1. Indoor release test

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

[0061] Experimental method 2: Evenly spray the pheromone liquid sustained-release agent or the pheromone microspheres on a special plate of a certain specificat...

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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 sustained-release agent of pheromone and a preparation method thereof. Background technique [0002] Sugarcane is the most important sugar crop in my country. It accounts for more than 92% of the country's total sugar production and plays a very important role in the country's sugar supply. The sugarcane borer (Chilo venosatus Walker) is the most serious and causes the most economic losses. In the sugarcane area of ​​South China, four generations of sugarcane strip borers occur a year from March to November, causing dead hearts in the seedling stage and withered sheaths or knots in the growing season, especially in the middle and late stages of sugarcane growth. The rate of damaged plants reaches 70%-80%, and the severe sugarcane area almost reaches 100%. The dieback (dead tail) rate of sugarcane exceeds 50%, resulting in a large-scale reduction of sugarcane production. Becaus...

Claims

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Application Information

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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
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