Stefbetan, m.e., (Fenmedifam, 91g/l + Desmedifam, 71g/l + Ethof

Synergistic Formulation: The Technical Edge of 'Stefbetan'

Weed control in sugar beet and fodder beet relies heavily on precise component synergy. The 'Stefbetan, m.c.e.' herbicide leverages a robust formula containing Phenmedipham (91 g/l), Desmedipham (71 g/l), and Ethofumesate. This specific blend enables dual-action protection: contact activity through the foliage and residual soil activity for prolonged control.

The carbamate derivatives (Phenmedipham and Desmedipham) act by inhibiting photosynthesis in target weeds. The addition of Ethofumesate (a benzofuran derivative) is critical, as it expands the control spectrum against stubborn broad-leaved weeds like Chenopodium album (fat-hen), Sinapis arvensis (wild mustard), and Galium aparine (cleavers). This is a highly selective tool that eliminates competitors without stressing the crop when used within recommended dosage rates.

Formulation and Application Mechanics

The micro-emulsion (m.c.e.) delivery system is a key technological advantage. Unlike standard emulsifiable concentrates, this formulation creates a highly uniform spray solution that penetrates the waxy leaf cuticle of young weeds more effectively, which is vital during the cotyledon to 4-true-leaf stages.

• Systemic Efficacy: Rapid translocation ensures the active ingredients reach the meristematic tissues of the weeds quickly.
• Broad-spectrum Control: Reliable performance against Capsella bursa-pastoris (shepherd's purse), Stellaria media (chickweed), and Lamium purpureum (purple dead-nettle).
• Flexible Regimen: Allows for up to 3 applications per season, providing a tactical advantage to manage weed flushes effectively.

Manufactured by DDE Farm AG (Triesen, Liechtenstein), Stefbetan features advanced surfactants that reduce surface tension, minimizing spray drift and bounce-off. This results in superior coverage and consistent efficacy, making it an essential component for any professional beet production system.