Merlin Flex Duo 475 SC

Synergistic Formulation: The Science Behind the Protection

Merlin Flex Duo 475 SC relies on a powerful combination of two active ingredients: isoxaflutole (75 g/l) and terbuthylazine (400 g/l). This blend creates a dual-action tool. Isoxaflutole, belonging to the triketone class, features a unique reactivation property: if rainfall occurs after a dry spell, the active ingredient reactivates to eliminate new flushes of weeds. Terbuthylazine provides a strong starting effect, effectively blocking photosynthesis in a wide spectrum of broadleaf and grass weeds.

The Role of the Safener

A key technological highlight of this Bayer formulation is the inclusion of the cyprosulfamide safener. Its primary function is to guarantee maximum selectivity for maize crops. The safener accelerates the metabolism of the herbicide within the crop plant, ensuring the maize remains unharmed even under adverse weather conditions or increased application rates. This allows farmers to avoid the phytotoxicity risks often associated with less advanced pre-emergence herbicides.

Field Application Insights

As a systemic soil-applied herbicide, Merlin Flex Duo 475 SC requires properly prepared, fine-tilled, and moist soil to perform at its peak. Applying the product pre-emergence establishes a protective barrier that keeps fields weed-free during the most critical growth stages of maize. Due to its high concentration and systemic mode of action, the product is rapidly absorbed by weed seedlings, halting their development before they even emerge through the soil surface.

• Application Rate: 1.0–2.0 L/ha depending on soil type and weed pressure.
• Target Control: Reliable suppression of annual grass and broadleaf weeds.
• Safety Profile: Classified as Hazard Class 3, requiring standard safety protocols for chemical handling.