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Vexin is a protective and curative fungicide with eradicative action against diseases like powdery mildew, rots and blights. It is a combination of two active ingredients: tebuconazole, a demethylation inhibitor (DMI) that interferes with the process of building the structure of fungal cell walls, and sulfur, a contact fungicide that acts by disrupting the cell membranes of fungal cells.

Mode of Action

Tebuconazole acts by inhibiting the synthesis of ergosterol, an essential component of fungal cell membranes. Ergosterol is responsible for maintaining the integrity of fungal cell membranes. When tebuconazole blocks ergosterol synthesis, it leads to the formation of holes in fungal cell membranes, causing the cells to leak and die.

Sulfur acts by disrupting the cell membranes of fungal cells. Sulfur is a highly reactive element that forms bonds with various molecules in fungal cell membranes, disrupting their structure and function. This disruption of cell membranes leads to the death of the fungal cells.

Application Rates

The application rate of Vexin will vary depending on the target disease, crop, and environmental conditions. In general, the application rate will range from 250 to 500 grams per hectare.

Application Methods

Vexin can be applied by foliar spray, seed treatment, or soil drench. Foliar spray is the most common application method for controlling foliar diseases. Seed treatment is used to protect seedlings from fungal diseases, while soil drench is used to control soilborne diseases.

Application Timing

Vexin should be applied when the crop is at a susceptible stage of growth and when disease pressure is high. For instance, in chilli, Vexin can be applied at the flowering and fruiting stages to control powdery mildew.

Re-entry Interval

The re-entry interval for Vexin is 12 hours, meaning that people should not enter the treated area until 12 hours after the last application.

Precautions

Vexin is a toxic chemical that should be handled with care. Always wear protective clothing, such as gloves, goggles, and a respirator, when handling the product. Do not apply the product in windy conditions or near water sources. Keep the product out of reach of children and pets.

Storage

Store Vexin in a cool, dry place away from direct sunlight. Do not store the product with food, feed, or other pesticides.

Disposal

Dispose of unused Vexin and empty containers according to local regulations. Do not contaminate water sources.

Disclaimer

The information provided in this document is for informational purposes only and should not be construed as a recommendation for use. Always consult the product label for complete instructions, precautions, and specific application guidelines.