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Sustained-release microcapsules for attractant of Beetle beetle, preparation method and application thereof

A slow-release microcapsule and attractant technology, which is applied in the direction of microcapsule preparation, microsphere preparation, and attractant pests, can solve the problems of easy volatilization of pheromones and unsatisfactory slow-release effects of pheromones, and achieve environmental pollution. The effect of small size, long-lasting effect and less material

Active Publication Date: 2022-07-19
SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pheromones are extremely volatile in the natural state, and conventional slow-release materials such as rubber slow-release and polyvinyl chloride slow-release bags have unsatisfactory slow-release effects on pheromones.

Method used

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  • Sustained-release microcapsules for attractant of Beetle beetle, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of slow-release microcapsules of the lupus beetle attractant, when specifically prepared:

[0027] (1) 0.5 g of dibenzoyl peroxide was added to the mixed solution containing 40 g of 2-methyl-2-methyl acrylate and 10 g of 2-methyl-2-acrylic acid, and carried out in a water bath at 70° C. Heating, after heating for 30 minutes, stirring was performed at a rate of about 300 rpm to obtain a prepolymerized liquid (wall material).

[0028] (2) Take 0.05 g of the beetle pheromone Conophthorin with a purity of more than 90%, dissolve it in 5 g of n-hexane solution, and finally add 5 g of paraffin solution to obtain a microcapsule core material mixture.

[0029] (3) Take 10g of the above-mentioned prepolymerization liquid and the microcapsule core material mixture, mix with 20g of a polyvinyl alcohol (PVA) aqueous solution with a mass concentration of 0.2% to carry out shear emulsification, and the emulsification process is carried out in a high shear emulsifier, The reac...

Embodiment 2

[0031] A kind of slow-release microcapsules of the lupus beetle attractant, when specifically prepared:

[0032] (1) Add 0.5g of dibenzoyl peroxide to the mixed solution containing 37.5g of 2-methyl-2-methyl acrylate and 9g of 2-methyl-2-acrylic acid, and place in a water bath at 70°C. Heating was carried out in the medium, and after heating for 30 minutes, stirring was performed at a rate of about 280 rpm to obtain a prepolymerized liquid (wall material).

[0033] (2) Take 0.05 g of the beetle pheromone Conophthorin with a purity of more than 90%, dissolve it in 4.9 g of n-hexane solution, and finally add 4.9 g of paraffin solution to obtain a microcapsule core material mixture.

[0034] (3) Take 9g of each of the above-mentioned prepolymerization liquid and the microcapsule core material mixture, mix with 18g of a polyvinyl alcohol (PVA) aqueous solution with a mass concentration of 0.2%, and perform shear emulsification, and the emulsification process is carried out in a hi...

Embodiment 3

[0036] A kind of slow-release microcapsules of the lupus beetle attractant, when specifically prepared:

[0037] (1) Add 0.5 g of dibenzoyl peroxide to a mixed solution containing 42.5 g of methyl 2-methyl-2-acrylate and 12.5 g of 2-methyl-2-acrylic acid, and place in a water bath at 80° C. The pot was heated, and after heating for 30 minutes, stirring was carried out at a rate of about 330 rpm to obtain a prepolymerized liquid (wall material).

[0038] (2) Take 0.05 g of beetle pheromone Conophthorin with a purity of more than 90%, dissolve it in 5.25 g of n-hexane solution, and finally add 5.15 g of paraffin solution to obtain a microcapsule core material mixture.

[0039] (3) Take 10g of each of the above-mentioned prepolymerization liquid and capsule core material mixture, mix with 20g of polyvinyl alcohol (PVA) aqueous solution with a mass concentration of 0.2%, and perform shear emulsification, and the emulsification process is carried out in a high shear emulsifier. , ...

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Abstract

The present invention discloses a slow-release microcapsule for attracting beetles, and a preparation method and application thereof. The capsule comprises a wall material and a core material, wherein the wall material is made of 2-methyl-2-methyl acrylate, 2-methyl-2-methyl acrylate, 2-methyl-2-methyl acrylate, 2 ‑Methyl‑2‑acrylic acid and dibenzoyl peroxide; the core material is prepared from the beetle pheromone Conophthorin, n-hexane and paraffin, and the wall material and core material are emulsified with polyvinyl alcohol to obtain a sustained-release microbe. capsule. The capsules are installed in the trap to lure and kill the beetles, preventing or reducing their reproduction, so as to protect the host plants.

Description

technical field [0001] The invention belongs to the technical field of pest control, and in particular relates to a slow-release microcapsule of an attractant for Beetle beetle, and a preparation method and application thereof. Background technique [0002] The dark-winged beetle (Xylosandruscrassiusculus) is a dry borer pest. The insect has been widely distributed in tropical and subtropical regions of the world, with a wide range of hosts, and can harm at least 124 species of plants in 46 families, including: alder (Alnussp.), camptotheca (Camptotheca acuminate), chestnut (Castaneamollissima), mulberry (Morus alba) ), etc., is one of the most widely distributed and successfully invaded borer pests. [0003] At present, the existing methods for preventing and controlling the beetle have certain drawbacks. For example, physical control methods such as removing dead trees and intensive burning treatment have a series of problems such as labor-intensive and prohibiting burnin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/28A01N43/90A01N25/18A01P19/00A01M1/02B01J13/02
CPCA01N25/28A01N43/90A01N25/18A01M1/023B01J13/02
Inventor 高磊王章训路广亮孙荣华王凤
Owner SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING
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