Bromothalonil water dispersible granule and preparation method thereof

Abstract

A bromothalonil water dispersible granule and a preparation method thereof and belongs to the technical field of pesticides. The bromothalonil water dispersible granule comprises the following components in percentage by weight: 30%-70% of bromothalonil, 1%-15% of a dispersing agent, 1%-15% of a wetting agent, 1%-15% of a binder, 1%-15% of a stabilizer, 1%-15% of a disintegrating agent, 1%-5% of a penetrating agent and the rest of packing. The preparation method comprises the steps of: firstly uniformly mixing the bromothalonil with the dispersing agent, the wetting agent, the binder, the stabilizer, the disintegrating agent, the penetrating agent and the packing, and carrying out air powder processing; then watering and kneading; and finally pelleting and drying. The bromothalonil water dispersible granule has powerful internal absorption and seepage force and can kill pathogenic bacteria intruding into plant bodies; the good effect can be achieved by using the low-concentration bromothalonil water dispersible granule; and the bromothalonil water dispersible granule has the quick-acting and persistent effects and the long-term advantageous effect can be kept.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a fungicide water-dispersible granule and a preparation method thereof. Background technique [0002] Bromothalonil is a broad-spectrum, high-efficiency, low-toxicity fungicide with a chemical formula of C6H6Br2N2 and a molecular weight of 265.94. Bromothalonil can inhibit and eradicate the growth of fungi, bacteria, and algae, and has a good control effect on crop diseases, and has special effects on anthracnose. Widely applicable to fruit trees, grapes, vegetables, cotton, peanuts, watermelon, tobacco, tea trees, flowers and other crops, to prevent and control anthracnose, scab, scab, powdery mildew, rust, blight, damping-off, rhizome Rot, canker, bacterial wilt, angular spot and other fungal and bacterial diseases. The application method is flexible, and foliar spray, seed treatment and soil irrigation all show good control effects. [0003] At present, there...

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Problems solved by technology

[0003] At present, there are mainly two dosage forms of bromothalonil wettable powder and emulsifiable concentrate on the market, but these two dosage forms are still insufficient in terms of quick-acting, long-lasting effect and environmental protection, and both have problems such as poor drug efficacy, so they need to be used in large quantities. Dosage of bromothalonil can achieve the purpose of sterilization

In addition, the solvents used in traditional pesticide formulation EC (Emulsifiable Concentrate, EC) are mainly aromatic hydrocarbons such as toluene and xylene, which pollute the environment and waste a lot of petroleum resources

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