Fludioxonil, with the CAS number 131341-86-1, is a high - quality product offered at the best price. It belongs to the phenylpyrrole class of fungicides. The chemical formula of fludioxonil is C₁₂H₇Cl₂N₃O, and its molecular weight is approximately 280.11 g/mol.
Physically, it is a white to off - white crystalline solid. It has a melting point in the range of 199 - 200 °C. Fludioxonil is slightly soluble in water, with a solubility of about 1.8 mg/L at 20 °C, and is soluble in organic solvents such as acetone, dichloromethane, and toluene.
This product is known for its high purity and stability, which ensures its effectiveness in various applications. It is produced under strict quality control measures to meet international standards.
Fludioxonil is mainly used as a fungicide in agriculture. It has a broad - spectrum activity against a wide range of fungal pathogens. It can effectively control diseases in cereals, fruits, vegetables, and ornamental plants.
In cereals, it can prevent and treat diseases such as Fusarium head blight, Septoria leaf blotch, and powdery mildew. By protecting the crops from these fungal infections, it helps to increase the yield and quality of the grains. In fruits like apples and pears, fludioxonil can control diseases such as blue mold and gray mold, which often cause significant post - harvest losses.
For vegetables, it is used to combat diseases such as Botrytis cinerea in tomatoes and cucumbers. In addition to agricultural applications, fludioxonil can also be used in the preservation of some industrial products to prevent fungal spoilage.
Before using fludioxonil, it is necessary to carefully read the product label and follow all safety instructions. When using it in agriculture, the appropriate dosage should be determined according to the type of crop, the severity of the disease, and the application method.
For foliar spray applications, fludioxonil is usually diluted with water. The recommended concentration for most crops is in the range of 250 - 500 ppm. The spray should be evenly applied to the entire plant surface, ensuring good coverage. It is best to apply the spray in the early morning or late afternoon to avoid high - temperature evaporation and to allow the product to adhere to the plant better.
For seed treatment, the seeds should be thoroughly mixed with the appropriate amount of fludioxonil formulation. This helps to protect the seeds from fungal infections during germination and early growth stages. The treated seeds should be stored in a cool and dry place until sowing.
Case 1: Cereal Crop Protection
In a wheat field in a certain region, there was a serious problem of Fusarium head blight. The farmers applied fludioxonil at a dosage of 300 ppm as a foliar spray during the flowering stage. After the treatment, the incidence of Fusarium head blight was significantly reduced from 30% to less than 5%. The yield of wheat increased by about 15% compared to the untreated fields, and the quality of the grains was also improved, with a lower level of mycotoxin contamination.
Case 2: Apple Preservation
An apple orchard faced the problem of blue mold during the post - harvest storage period. The apples were treated with a 400 ppm fludioxonil solution before storage. After three months of storage, the decay rate of the treated apples was only 8%, while that of the untreated apples reached 35%. This shows that fludioxonil can effectively extend the shelf - life of apples and reduce economic losses.
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