Bactericide water dispersible granules compounded from difenoconazole and pyraclostrobin and preparation method thereof

A technology of pyraclostrobin and difenoconazole, which is applied in the field of pesticides, can solve the problems of increased control costs and decreased drug efficacy, and achieve the effects of no dust pollution, fast disintegration speed, and easy packaging

Inactive Publication Date: 2011-11-02
ZHEJIANG TIDE CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the single-dose products of the above two pesticides have developed resistance during use, and the efficacy has dropped a lot compared with before, and the cost of control has also increased significantly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A fungicide water-dispersible granule compounded with difenoconazole and pyraclostrobin, prepared from the following components in mass percentage: 95% of difenoconazole content and pyraclostrobin When the content is 95%, difenoconazole 20%, pyraclostrobin 10%, dispersant 6%, wetting agent 4%, disintegrant 5%, binder 2%, and the rest is carrier .

[0040] Among them, the dispersant is Morwet D-425, the wetting agent is sodium lauryl sulfate, the disintegrant is magnesium aluminum silicate, the binder is sodium carboxymethyl cellulose, and the carrier is kaolin.

[0041] The preparation method of the present invention comprises the following steps:

[0042] Feed difenoconazole, pyraclostrobin, dispersant, wetting agent, disintegrant, binder, and carrier according to the feeding ratio, and mixed evenly, finely pulverized by jet milling, and then kneaded , and finally granulated by extrusion or granulated and dried in a boiling granulator to obtain the product.

[004...

Embodiment 2

[0045] A fungicide water-dispersible granule compounded with difenoconazole and pyraclostrobin, prepared from the following components in mass percentage: 95% of difenoconazole content and pyraclostrobin When the content is 95%, difenoconazole 30%, pyraclostrobin 20%, dispersant 8%, wetting agent 3%, disintegrant 5%, binder 0.5%, and the rest is carrier .

[0046] Among them, the dispersant is Morwet D-425, the wetting agent is sodium lauryl sulfate, the disintegrant is magnesium aluminum silicate, the binder is sodium carboxymethyl cellulose, and the carrier is kaolin.

[0047] The preparation method of the present invention comprises the following steps:

[0048] Feed difenoconazole, pyraclostrobin, dispersant, wetting agent, disintegrant, binder, and carrier according to the feeding ratio, and mixed evenly, finely pulverized by jet milling, and then kneaded , and finally granulated by extrusion or granulated and dried in a boiling granulator to obtain the product.

...

Embodiment 3

[0051] A fungicide water-dispersible granule compounded with difenoconazole and pyraclostrobin, prepared from the following components in mass percentage: 95% of difenoconazole content and pyraclostrobin When the content is 95%, difenoconazole 25%, pyraclostrobin 15%, dispersant 4%, wetting agent 2%, disintegrant 8%, binder 1.5%, and the rest is carrier .

[0052] Wherein, the dispersant is sodium lignosulfonate, the wetting agent is pull-off powder, the disintegrating agent is sodium sulfate, the binder is xanthan gum, and the carrier is activated clay.

[0053] The preparation method of the present invention comprises the following steps:

[0054] Feed water, difenoconazole and pyraclostrobin, dispersant, wetting agent, disintegrant, binder, and carrier according to the feeding ratio, and add them to the mixing tank with a high-shear disperser and mix evenly to make a suspension with a solid content of 50% to 70%; the suspension is then physically dispersed by a horizo...

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PUM

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Abstract

The invention relates to bactericide water dispersible granules compounded from difenoconazole and pyraclostrobin and a preparation method thereof, belonging to the technical field of pesticides. The bactericide water dispersible granules are prepared from the following components in percentages by weight: 5-50% of difenoconazole, 5-30% of pyraclostrobin, 1-8% of dispersing agent, 1-4% of wetting agent, 1-15% of disintegrating agent, 1-3% of binder and the balance of carrier. The bactericide water dispersible granules have the advantages of favorable dispersibility, favorable wettability, high suspension rate, high disintegrating speed, easiness for packaging and storage, no dust pollution in the production process and the like, and have a further expanded bactericidal spectrum.

Description

technical field [0001] The invention relates to a fungicide water-dispersible granule compounded with difenoconazole and pyraclostrobin and a preparation method thereof, belonging to the technical field of pesticides. Background technique [0002] Pesticide preparations are gradually developing towards safety, environmental protection, and water-based. Water-dispersible granules are a new dosage form with the most advantages and competitiveness among the current pesticide dosage forms. In addition to the characteristics of general granules, water dispersible granules also exhibit the following characteristics: (1) No dust flying, which reduces environmental pollution, is safe for operators, and can make highly toxic varieties less poison. (2) Compared with wettable powder and suspending agent, it has high active ingredient content, high relative density and small volume, which is convenient for packaging, storage and transportation. (3) The storage stability and physical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N43/653A01N25/14A01P3/00
Inventor 杨征宇
Owner ZHEJIANG TIDE CROP TECH
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