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Controlled-release pesticide granules and preparation method therefor

A technology of controlled-release pesticides and granules, applied in the field of pesticides, can solve problems such as harsh process requirements and soil solvent pollution, and achieve the effects of wide application range, pollution reduction, and high quality stability

Active Publication Date: 2016-10-26
广西立可丰生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mix the pesticide active substance, filler and surfactant evenly; the pesticide active substance, filler and surfactant are calculated by weight percentage, the pesticide active substance is 1%~20%, and the surfactant is 0.1%~10% %, and the balance is clay. The mixed granules of the pesticide granules not only retain the original quick-acting properties of the effective activity of the pesticide, but also improve the physical and chemical stability of the effective activity of the pesticide; but the mixed granules of the pesticide granules adopt surfactants , may cause solvent pollution to the soil. In addition, different layers are coated with different thicknesses of coatings and some are not coated to achieve slow-release and quick-acting control, and the process requirements are relatively harsh.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The first layer of active ingredients: clothianidin 4kg, polyvinylpyrrolidone 6.4kg, kaolin and clay 140kg; the second layer of active ingredients: monosultap 16kg, dextrin 64kg, borax 9.6kg, kaolin, clay and calcium carbonate 760kg .

[0043] The preparation method comprises the following steps:

[0044] (1) Preparation of the first layer of active ingredients: Stir and mix clothianidin and polyvinylpyrrolidone in the first layer of active ingredients evenly, add kaolin and clay to prepare mixed material A;

[0045] (2) Preparation of the second layer of active ingredients: Stir and mix the monosultap, dextrin and borax in the second layer of active ingredients, and add kaolin and clay to prepare the mixed material B;

[0046] (3) Put the mixed material A in the granulation tray, open the granulation tray, spray water to start granulation, heat up after granules appear, the temperature is 70~90°C, after the mixed material A is completely made into granules and solidif...

Embodiment 2

[0051] The first active ingredient layer: Thiamethoxam 10kg, sodium carboxymethylcellulose 15kg, kaolin and clay 300kg; the second active ingredient layer: cyfluthrin 15kg, dextrin 64kg, borax 9.6kg, kaolin, clay and gypsum 578.23 kg; protective layer: dextrin 325g, borax 48.75g, pigment 2g, kaolin and clay 7.8kg.

[0052] The preparation method comprises the following steps:

[0053] (1) Preparation of the first layer of active ingredients: Stir and mix thiamethoxam and polyvinylpyrrolidone in the first layer of active ingredients, and add kaolin and clay to prepare the mixed material A;

[0054] (2) Preparation of the second active ingredient layer: Stir and mix the cyfluthrin, dextrin and borax in the active ingredients of the second layer evenly, add kaolin and clay to prepare the mixed material B;

[0055] (3) Put the mixed material A in the granulation tray, open the granulation tray, spray water to start granulation, heat up after granules appear, the temperature is 70...

Embodiment 3

[0060] The first active ingredient layer: monosultap 5kg, abamectin 50kg, sodium carboxymethyl cellulose 55kg, kaolin and clay 300kg; the second layer of active ingredients: monosultap 5kg, abamectin 50kg, paste Refined 165kg, borax 24.75kg, kaolin, clay and calcium carbonate 345.25kg.

[0061] The preparation method comprises the following steps:

[0062] (1) Preparation of the first layer of active ingredients: Stir and mix the monosultap, abamectin and sodium carboxymethylcellulose in the first layer of active ingredients, and add kaolin and clay to prepare the mixed material A;

[0063] (2) Preparation of the second layer of active ingredients: Stir and mix the monosultap, abamectin, dextrin and borax in the second layer of active ingredients, and add kaolin and clay to prepare the mixed material B;

[0064] (3) Put the mixed material A in the granulation tray, open the granulation tray, spray water to start granulation, heat up after granules appear, the temperature is 7...

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PUM

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Abstract

The invention discloses controlled-release pesticide granules and a preparation method therefor. Each controlled-release pesticide granule comprises a first-layer effective ingredient layer, a second-layer effective ingredient layer and a protective layer which are arranged from inside to outside. According to the controlled-release pesticide granules and the preparation method therefor, the release of pesticide active ingredients is promoted or adjusted through adopting different cross-linking agents for different effective ingredient layers and setting a proper proportioning ratio for each layer in a matched manner, so as to achieve quick-acting, medium-acting and long-acting control effects on diseases and insect pests.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a controlled-release pesticide granule and a preparation method thereof. Background technique [0002] Pesticides are used to kill insects, fungi, and other organisms that harm crop growth. The original pesticides generally cannot be used directly, and must be processed into various types of preparations before they can be used. At present, powder is the earliest and most used powder. Because it can be directly spread or mixed with soil, it has high work efficiency and does not need water. It is especially suitable for use in arid and water-deficient mountainous or semi-mountainous areas and woodlands. However, the biggest disadvantage of powder is that it is easy to use. Drift pollutes the environment, and the effective utilization rate of pesticides is low. Generally, only 20% of the powder is deposited on the target organisms. In addition, the leaf adhesion is poor, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/26A01N25/10A01N51/00A01N41/02A01N53/08A01P7/04
CPCA01N25/10A01N25/26A01N41/02A01N51/00A01N53/00A01N2300/00
Inventor 苑立志覃欢
Owner 广西立可丰生物科技有限公司
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