Weiyap Extra SC

Action Mechanism and Selectivity

"Vayap Extra SC" by Basf S.A. is a systemic selective herbicide that functions primarily as a soil barrier. The active ingredient, Pendimethalin, belongs to the dinitroaniline class and works by inhibiting mitosis in the meristematic tissues of emerging weeds. This action effectively halts the development of both annual broadleaf and grass weeds before they break through the soil surface.

Technical Specifications and Application

The suspension concentrate formulation ensures high stability of the working solution and uniform distribution across the soil profile. As a pre-emergence herbicide, it establishes a "protective shield" in the topsoil layer, which remains active provided there is sufficient soil moisture. To achieve maximum efficiency, the product is applied once per season, with a dosage rate ranging from 2.0 to 3.0 L/ha, depending on soil type and weed pressure.

Benefits for Vegetable Crops

The selectivity of the composition allows for safe application on various vegetable crops, including onions, garlic, tomatoes, carrots, cabbage, cucumbers, potatoes, and strawberries. Manufactured by Basf S.A. (Brazil), the product falls under toxicity class 3, ensuring a predictable agronomic cycle when handling instructions are followed. By preventing weed germination early on, the herbicide reduces competition for light and nutrients, allowing the crops to maximize their growth potential from the very beginning.