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Emamectin benzoate-algae slow-release type microcapsule pesticide and preparation method thereof

A slow-release technology of emamectin benzoate, which is applied in the field of emamectin benzoate pesticides, can solve problems such as difficulty in exerting super-efficient effects, increase in the number and frequency of medication, and loss of decomposition, so as to save agricultural production costs, improve utilization, and prolong The effect of duration

Inactive Publication Date: 2010-09-15
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of use, it is easily affected by environmental factors such as light, heat, air, rain, soil, microorganisms and other chemical substances, causing decomposition and loss, making it difficult to exert super-efficient effects, and the number and frequency of medications increase year by year, and the cost increases

Method used

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  • Emamectin benzoate-algae slow-release type microcapsule pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The preparation method of emamectin benzoate-algae sustained-release microcapsule insecticide comprises the steps:

[0049] a. Take 20 parts of pretreated algae and dry them at 50°C for 7 hours;

[0050] b. 4 parts of emamectin benzoate and 1 part of naphthalene acetic acid, 0.3 part of indole butyric acid are dissolved in a reaction vessel with 25 parts of organic solvents, and 20 parts of dried algae are added, in a constant temperature air bath shaker After shaking and soaking at 30°C for 24 hours;

[0051] c. Add 2 parts of easily degradable macromolecules to the above reactor;

[0052] d. 3 parts of surfactant and 4 parts of stabilizer are poured into 100 parts of twice distilled water;

[0053] e. After mixing the product of step c with the product of step d, first stir with a high-shear emulsifier at a speed of 12,000 rpm for 15 minutes, then stir at a speed of 1,000 rpm, evaporate the organic solvent at a temperature of 40°C, and solidify into capsules. Filter ...

Embodiment 2

[0060] The preparation technology of emamectin benzoate-algae sustained-release microcapsule insecticide comprises the following steps:

[0061] a. Take 25 pretreated algae and dry them at 70°C for 4 hours;

[0062] b. 5 parts of emamectin benzoate and 2 parts of naphthalene acetic acid, 0.5 part of indole butyric acid are dissolved in the reaction container that 30 parts of organic solvents are housed, and add 25 parts of dried algae, in the constant temperature air bath shaker After shaking and soaking at 20°C for 24 hours;

[0063] c. Add 3 parts of easily degradable macromolecules to the above reactor;

[0064] d. 3 parts of surfactant and 5 parts of stabilizer are poured into 150 parts of twice distilled water;

[0065] e. After mixing steps d and e, first stir with a high-shear emulsifier at a speed of 10,000rpm for 15 minutes, then stir at a speed of 800rpm, evaporate the organic solvent at a temperature of 50°C, solidify into capsules, and filter out the water. And ...

Embodiment 3

[0068] The preparation technology of emamectin benzoate-algae sustained-release microcapsule insecticide comprises the following steps:

[0069] a. Take 15 pretreated algae and dry them at 60°C for 6 hours;

[0070] b. 2.5 parts of emamectin benzoate and 1.5 parts of naphthalene acetic acid, 0.4 part of indole butyric acid are dissolved in a reaction vessel with 35 parts of organic solvents, and 15 parts of dried algae are added, in a constant temperature air bath shaker After shaking and soaking at 25°C for 24 hours;

[0071] c. Add 1.5 parts of easily degradable macromolecule to the above reactor;

[0072] d. Pour 2 parts of surfactants and 4 parts of stabilizers into 100 parts of twice distilled water;

[0073] e. After mixing steps d and e, first stir with a high-shear emulsifier at a speed of 8000rpm for 15 minutes, then stir at a speed of 700rpm, evaporate the organic solvent at a temperature of 55°C, solidify into capsules, and filter out the water. And mix evenly wi...

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Abstract

The invention belongs to an emamectin benzoate pesticide, and particular to an emamectin benzoate-algae slow-release type microcapsule pesticide and a preparation method thereof. The existing formulations of the emamectin benzoate pesticide are easy to be influenced by the environmental factors such as light, heat, air, rainwater, soil, microorganism and other chemical substances, thereby causing decomposing and erosion and being difficult to achieve an ultra high efficiency. The microcapsule pesticide of the invention comprises 0.5-10 parts of emamectin benzoate, 5-50 parts of algae, 1-20 parts of surfactant, 1-20 parts of easily degradable macromolecule emamectin benzoate, 2-30 parts of stabilizing agent, 1-10 parts of microelement fertilizer and 1-5 parts of plant growth regulator. The invention has the advantages of effectively controlled release, prolonged efficacy duration and reduced applied dosage, rich algae carrier resource, double effects of fertilizing the soil and protecting the plant, convenient application, reduced labor intensity, saved labor force and agriculture production cost, easy available raw materials, low cost and simple process, and is suitable for industrial scale production.

Description

technical field [0001] The invention belongs to the field of emamectin benzoate pesticides, in particular to an emamectin benzoate-algae slow-release microcapsule insecticide and a preparation method thereof. Background technique [0002] Abamectin, the English name Avermectins, is a sixteen-membered macrocyclic lactone compound with insecticidal, acaricidal, and nematicidal activities. In 1975, Japan's Kitasato Institute (Kitasato Institute) obtained a soil sample from Kawana City, Shizuoka, Japan. obtained in isolation. Avermectins are a new type of antibiotics with the characteristics of novel structure and dual use in agriculture and livestock. With the improvement of people's living standards and the demand for green food, the use of abamectin biopesticides is increasing. [0003] In 1984, Merk & Co. of the United States began to use avermectin as the lead compound for avermectin through derivative synthesis. In 1994, the company optimized and developed a new type of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/02C05G5/00C05G3/60
Inventor 巫娅坤任天瑞王全喜燕云峰侯宏伟艾丽娟王利东
Owner SHANGHAI NORMAL UNIVERSITY
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