Controlled-release device for slowly releasing volatile substance and manufacturing method thereof

A volatile substance and volatile technology, applied in the agricultural field, can solve the problems of waste, unstable and short volatilization speed of lure cores, generally no more than one month, etc., to achieve the effect of avoiding waste and more flexible application

Inactive Publication Date: 2017-06-30
NANJING SINO GREEN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the volatilization rate of lures made of small rubber heads carrying pheromones is unstable. Also at 25°C, after releasing half of the pheromones, the daily release of pheromones in the lures will be reduced to half of the original , which means that the release amount at the beginning is too high, and the release amount later is not enough, resulting in waste
Secondly, in addition to the unstable release amount, the effective duration of the rubber head lure is very short, generally no more than one month, so it needs to be replaced at least once a month. It needs to be replaced at least 6-7 times, which will not only increase the cost, but also the labor cost will be very expensive, which is completely unsuitable for commercial use and promotion
The limitation of the rubber head lure is also reflected in the very limited amount of pheromone that a rubber head can carry. When a large amount of other volatile compounds need to be mixed to enhance the attraction of the main compound, the amount of pheromone that the rubber head can carry The amount is limited by the inability to effectively increase

Method used

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  • Controlled-release device for slowly releasing volatile substance and manufacturing method thereof
  • Controlled-release device for slowly releasing volatile substance and manufacturing method thereof
  • Controlled-release device for slowly releasing volatile substance and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0068] Example 1: Hexyl acetate is used as a solvent to mix and fill with the sex pheromone of the Asian corn borer. Hexyl acetate is a fast volatile solvent, and its ratio to the sex pheromone of Ostrinia officinalis is 99:1. The main body 1 of the controlled release device is made of polyethylene material. Specifically, 25 controlled-release devices with a wall thickness of 0.8 mm and polyethylene as the main material were used in the test, and each release device was filled with 1.0 ml of a mixed liquid containing 99% of the solvent hexyl acetate and 1 % sex pheromones of Ostrinia sativa. At room temperature, the release rate of 25 controlled-release devices was measured and the data was recorded to an accuracy of 0.1 mg. The entire test lasted for 190 days. During this period, the normal temperature value is between 20-30 degrees Celsius. In the course of the test, five times were divided, and two controlled-release devices were randomly selected each time to measure th...

example 2

[0074] Example 2: Mixed filling with methyl salicylate as solvent and sex pheromone of Asian corn borer

[0075] Use 25 controlled-release devices with a wall thickness of 0.8mm polyethylene material as the main body to fill the liquid mixed with methyl salicylate as a solvent and the sex pheromone of the Asian corn borer, and the methyl salicylate can volatilize quickly. The mixed liquid contains 99% of the solvent methyl salicylate and 1% of the sex pheromone of the Asian corn borer, that is, they are mixed in a ratio of 99:1, and each controlled release device is filled with 1.0ml of the mixed liquid. At room temperature, the release rate of 25 controlled-release devices was measured and the data was recorded to an accuracy of 0.1 mg. The entire test lasted for 190 days. During this period, the normal temperature value is between 20-30 degrees Celsius. In the course of the test, two controlled-release devices were randomly selected for five times each time to measure the w...

example 3

[0079] Example 3: Filling mixed with codling moth sex pheromone using α-farnesene as solvent

[0080]Using α-farnesene as a solvent, 1% codling moth sex pheromone was added at a ratio of 99:1, and the mixed liquid was filled in the controlled release device of the main body 1 made of polyethylene material. In this test, 25 controlled-release devices with a wall thickness of 0.8 mm were used. The mixed liquid contained 99% of the solvent α-farnesene and 1% of codling moth sex pheromone, and each controlled-release device was filled with 1.0 ml mixed liquid. At room temperature, the release rate of 25 controlled-release devices was measured and the data was recorded to an accuracy of 0.1 mg. The entire test lasted for 190 days. During this period, the normal temperature value is between 20-30 degrees Celsius. During the test, five times were divided, and two controlled-release devices were randomly selected each time to measure the weight of the remaining mixed solution and th...

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Abstract

The invention relates to a controlled-release device for slowly releasing a volatile substance. The device comprises a body and a hanging part, the body comprises a sealing cavity, the capacity of the sealing cavity is 0.05-15 milliliters, the sealing cavity is filled with the volatile substance, the wall thickness of the body is 0.25-1.25 milliliters, and the body, the hanging part and a wing part are integrally formed by a macromolecule polymeric material which is capable of making the volatile substance be infiltrated into air from the sealing cavity. Compared with the prior art, the controlled-release device for slowly releasing the volatile substance can achieve a longer-acting controlled-release and completely releasing technical effect, and thus is more suitable for being regarded as a releaser of a repellent for interfering insect mating in field and can be used for being regarded as a lure core for monitoring, killing and luring and killing insects. The invention further relates to a manufacturing method of the controlled-release device, wherein the step of filling and sealing at a normal temperature is included.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a controlled-release device for slowly releasing volatile substances, which can completely release volatile substances at a uniform speed and basically completely release the volatile substances therein. The invention also relates to a manufacturing method of the controlled release device for slow release of volatile substances. Background technique [0002] It is well known that low molecular weight volatile chemicals have many existing and potential uses in agriculture, including the use of volatile chemicals as attractants and repellants for pests. The sex pheromone in the insect attractant is a volatile chemical signal sent by the opposite sex to attract each other, while the insect aggregation pheromone is usually produced by insects of a certain sex to play the role of aggregation , Aggregating pheromones can attract both male and female insects of the same...

Claims

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Application Information

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IPC IPC(8): A01M1/02A01M1/20A01M29/12A01G7/06B29C45/00
CPCA01M1/02A01G7/06A01M1/20A01M29/12B29C45/0001
Inventor 高爱华塞斯文
Owner NANJING SINO GREEN BIOTECH
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