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Barrel sex pheromone microspheres and preparation method thereof

A pheromone-based technology, applied in the field of pesticides, can solve the problems of inability to use mechanical intubation, a large amount of manpower and time, and achieve the effects of preventing and controlling sugarcane stem borer pests, saving labor and time, and good release behavior

Inactive Publication Date: 2017-02-22
GUANGDONG PROVINCIAL BIOENGINEERING INST (GUANGZHOU SUGARCANE IND RES INST)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The bar borer Proceras venosatum (Walker) is a common pest of sugarcane crops. At present, the bar borer sex pheromone is commonly used to control it. This sex pheromone is more environmentally friendly and safer than chemical pesticides, but the existing technology requires a storage device (that is, a dosage form) when it is applied. , the device is a hollow polyethylene plastic tube with a diameter of about 0.17cm and a length of 4.4cm. During the production process, it is necessary to heat the polyethylene at high temperature, mix it with sex pheromone, and cool it into a tubular shape. When it is used in the field , it needs to be intubated manually three times a year in the middle and late stages of sugarcane growth, and 100 cannulae need to be intubated per mu. Although the intubation has a certain effect on the control of barworms, but for the middle and late stages of sugarcane growth, the height and density of sugarcane cannot be mechanically intubated. , which requires a lot of manpower and time

Method used

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  • Barrel sex pheromone microspheres and preparation method thereof
  • Barrel sex pheromone microspheres and preparation method thereof
  • Barrel sex pheromone microspheres and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of bariatric sex pheromone microsphere of the present embodiment is prepared from the raw material of following weight:

[0032] Bionolle 300110g, sex pheromone (cis 13-octadecenyl acetate: cis 13-octadecenyl alcohol: cis 11-hexadecenyl acetate=5:1:4w / w) 1g, Antioxidant (vitamin C) 1g, sucrose ester 0.01g, hydroxypropyl methylcellulose 0.05g, solvent 100ml.

[0033] The preparation method of the above-mentioned bariatric sex pheromone microspheres comprises the following steps:

[0034] (1) Select the biodegradable polymer Bionolle 3001, preheat it in a water bath at 100°C, add the sex pheromone (purity above 95%) and water, mix well, cool to 60°C, and then add antioxidant vitamins C, heated to 80°C, then added sucrose ester and hydroxypropyl methylcellulose, cooled to room temperature;

[0035] (2) Stirring at different stirring speeds (250rpm, 750rpm, 1500rpm), three kinds of microspheres A, B and C with different average particle sizes can be prepared respec...

Embodiment 2

[0037] A kind of bariatric sex pheromone microsphere of the present embodiment, it is prepared by the raw material of following weight:

[0038] Bionolle 300 110g, sex pheromone of bark borer (cis 13-octadecenyl acetate: cis 13-octadecenyl alcohol: cis 11-hexadecenyl acetate = 5:1:4w / w) 0.7g , antioxidant (vitamin C) 0.7g, sucrose ester 0.008g, hydroxypropyl methylcellulose 0.04g, solvent 98ml.

[0039] The preparation method of the above-mentioned bariatric sex pheromone microspheres comprises the following steps:

[0040] (1) Select the biodegradable polymer Bionolle 3001, preheat it at 95°C, add the sex pheromone (purity above 95%) and water in turn, mix well, cool to 55°C, then add antioxidant vitamin C, Heat to 80°C, add sucrose ester and hydroxypropyl methylcellulose, and cool to room temperature;

[0041] (2) By stirring at different stirring speeds (250rpm, 750rpm, 1500rpm), microspheres with three different average particle sizes can be prepared respectively.

Embodiment 3

[0043] A kind of bariatric sex pheromone microsphere of the present embodiment, it is prepared by the raw material of following weight:

[0044] Bionolle 300110g, sex pheromone (cis 13-octadecenol acetate: cis 13-octadecenol: cis 11-hexadecenyl acetate = 5:1:4w / w) 1.2g , antioxidant (vitamin C) 1.2g, sucrose ester 0.012g, hydroxypropyl methylcellulose 0.06g, solvent 102ml.

[0045] The preparation method of the above-mentioned bariatric sex pheromone microspheres comprises the following steps:

[0046] (1) Select the biodegradable polymer Bionolle 3001, preheat at 105°C, add the sex pheromone (purity above 95%) and water, mix well, cool to 65°C, then add antioxidant vitamin C, heat After reaching above 80°C, add sucrose ester and hydroxypropyl methylcellulose, and cool to room temperature;

[0047] (2) By stirring at different stirring speeds (250rpm, 750rpm, 1500rpm), microspheres with three different average particle sizes can be prepared respectively.

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Abstract

The invention discloses a proceras venosatus sex pheromone microsphere and a preparing method thereof. The microsphere comprises, by weight, 9-11 parts of aliphatic polyester, 98-102 parts of solvent, 0.7-1.2 parts of proceras venosatus sex pheromone, 0.7-1.2 parts of antioxidant, 0.008-0.012 part of surfactant and 0.04-0.06 part of adhesive. The preparing method comprises the steps that the aliphatic polyester is pre-heated under the temperature of 95-105 DEG C, the proceras venosatus sex pheromone and the solvent are added to the aliphatic polyester, the proceras venosatus sex pheromone, the solvent and the aliphatic polyester are mixed evenly and cooled to the temperature of 55-65 DEG C, the antioxidant is added to the proceras venosatus sex pheromone, the solvent and the aliphatic polyester and heated to the temperature of 80-90 DEG C, the surfactant and the adhesive are added to the proceras venosatus sex pheromone, the solvent, the aliphatic polyester and the antioxidant and cooled to the indoor temperature, and a mixture is obtained; the mixture is stirred at the speed of 250-1500 rpm. The proceras venosatus sex pheromone microsphere is good in releasing behavior and stability and capable of effectively preventing the sugarcane proceras venosatus attack.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a bark borer sex pheromone microsphere and a preparation method thereof. Background technique [0002] The bar borer Proceras venosatum (Walker) is a common pest of sugarcane crops. At present, the bar borer sex pheromone is commonly used to control it. This sex pheromone is more environmentally friendly and safer than chemical pesticides, but the existing technology requires a storage device (that is, a dosage form) when it is applied. , the device is a hollow polyethylene plastic tube with a diameter of about 0.17cm and a length of 4.4cm. During the production process, it is necessary to heat the polyethylene at high temperature, mix it with sex pheromone, and cool it into a tubular shape. When it is used in the field , it needs to be intubated manually three times a year in the middle and late stages of sugarcane growth, and 100 cannulae need to be intubated per mu. Altho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01N25/04A01P19/00A01N35/02
Inventor 胡玉伟管楚雄梁磊许汉亮安玉兴曾建温莉茵李继虎
Owner GUANGDONG PROVINCIAL BIOENGINEERING INST (GUANGZHOU SUGARCANE IND RES INST)
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