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Non-pollution, microcapsule pesticide, and its prepn. method

A technology of green pesticides and microcapsules, applied in botany equipment and methods, acaricides, biocides, etc., can solve the problems that the capsule skin cannot be biodegraded, can not be applied by spraying, and has special odor, so as to reduce contact toxicity , Reduce the irritation of humans and animals, and improve the efficacy of the drug

Inactive Publication Date: 2004-07-21
仲伟德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the problem that the capsule skin of the existing microcapsule preparation cannot be biodegraded and remains on the leaves of plants, which causes environmental pollution and the decomposition of the pesticide itself when exposed to light, is unstable to water, has special peculiar smell, and is highly corrosive. Problems with being unusable for spray application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, after mixing 3g fenvalerate and 7g malathion solution, add 0.5g calcium dodecylbenzenesulfonate, 0.5g phenylethylphenol polyoxyethylene polyoxypropylene ether, 3g castor oil, 3g Tristyrylphenol polyoxyethylene ether, 7g xylene, heated to 70°C, while stirring continuously, then added 15g water, set aside; 7.5g gelatin, 7.5g sodium alginate were added to 92g water for hydrolysis, respectively heated To 60°C, take 24g of the above-mentioned hydrolyzed glue solution, filter, mix after filtering, and stir evenly, add the uniformly stirred glue solution into the spare solution prepared above, mix and stir at a speed of 400 rpm, At the same time, after natural cooling for 2 hours, antifreeze and dyes are added, and then packaged to obtain the cyanoma microcapsule preparation.

Embodiment 2

[0024] Example 2, the production of the capsule core is the same as in Example 1, the difference is that the capsule skin is hydrolyzed by adding 7.5g of starch glue and 7.5g of gelatin to 92g of water respectively, heating to 60°C respectively, and taking 24g of the above-mentioned hydrolyzed glue solution Filter, mix after filtering, then add 1g foaming agent, and stir evenly.

[0025] Table 1 compares the duration of efficacy of the cyanoma microcapsules and 30% cyanoma EC in the prevention and treatment of peach borer.

[0026] Test sample

Embodiment 3

[0027] Example 3, add 15g pyrrolidone to 2.5g imidacloprid to make a solution, then add 1g calcium dodecylbenzenesulfonate, 1g castor oil ethylene oxide adduct, 3g cottonseed oil, 3g dibianyl biphenol poly Oxyethylene ether, 15g xylene, heated to 80°C, while stirring continuously, then add 20g water, set aside; 7.5g gelatin, 7.5g starch glue, 7.5g sodium alginate were added to 92g water for hydrolysis, respectively heated to 70°C, take 16g of the above-mentioned hydrolyzed glue solution, filter, mix after filtering, and stir evenly, add the well-stirred glue solution into the spare solution prepared above, mix and stir at a speed of 600 rpm, and at the same time After natural cooling for 2 hours, packaging is carried out to obtain the imidacloprid microcapsule preparation.

[0028] Table 2 shows the comparison between the duration of efficacy of the imidacloprid microcapsules in the above example 3 and 5% imidacloprid wettable powder in the control of Spiraea aphid.

[0029] ...

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PUM

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Abstract

A microsoftgel-type green agricultural chemical features that its microsoftgel is composed of core and skin. It is prepared through dissolving raw agricultural chemical in solvent, adding assistant, plant oil, surfactant and solvent to obtain core, hydrolyzing the animal glue, plant gum and sea product gelatin, filtering, mixing to obtain skin, mixing said core with skin, stirring at 200-600 rpm, and naturally cooling for 2 hr. Its advantages are high effect and durability, and low cost.

Description

(1) Technical field: [0001] The invention relates to the technical field of pesticide formulations, in particular to a microcapsule green pesticide preparation and a preparation method thereof. (two) background technology: [0002] Due to the harm of diseases, insects and weeds, the annual loss of crops in the world is about 1 / 3. In order to control and reduce the harm of diseases, insects and weeds, the world uses up to 3 million tons of pesticides every year, most of which are Chemical pesticides. Although chemical pesticides have made great contributions to agriculture, their toxicity is high, and there are many pesticide residues in plants, and they will penetrate into the soil, rivers or groundwater, affecting people's health, reducing soil quality, causing Environmental pollution, so water-based pesticide formulations are the direction of pesticide development; in addition, some chemical pesticides themselves have the characteristics of light decomposition, instability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/00A01N25/28A01P7/02
CPCY02A50/30
Inventor 张天良
Owner 仲伟德
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