Stefodim, KE (clethodim, 240 g/l)

Stefodim: High-Performance Grass Control with 240 g/L Clethodim

Stefodim represents a high-concentration formulation of clethodim (240 g/L), designed for robust systemic control of annual and perennial grass weeds in broadleaf crops. As a selective, post-emergence herbicide, it is specifically engineered to target weeds such as quackgrass (Agropyron repens), barnyard grass, and various species of foxtail (Setaria) without compromising crop development.

Technical Mechanism and Selectivity

The active ingredient belongs to the cyclohexanedione family. Upon contact with the foliage, the chemical is rapidly absorbed and translocated via the phloem to the meristematic tissues of the weeds. It effectively inhibits the acetyl-CoA carboxylase (ACCase) enzyme, which is essential for fatty acid synthesis and cell membrane formation. Because of the distinct biochemical differences between the metabolic pathways of monocot weeds and the broadleaf crops (such as soybeans, rapeseed, sunflowers, and sugar beets), Stefodim ensures total crop safety when applied according to the labeled rates.

Formulation and Efficiency

The emulsifiable concentrate (EC) formulation provides superior cuticle penetration, a critical factor for successful field application. Even with low application rates (ranging from 0.4 to 1.6 L/ha), the product demonstrates high efficacy due to its concentrated nature.

• Systemic Root Action: It ensures total elimination of the underground rhizome systems in perennial grasses like quackgrass, preventing regrowth.
• Rainfastness: Due to the advanced EC formulation, the herbicide is absorbed quickly, minimizing the impact of subsequent rainfall on performance.
• Optimized Logistics: The high concentration (240 g/L) reduces the required volume of active product per hectare, streamlining storage and handling.

Stefodim, manufactured by DDE Farm AG, is a key component for integrated pest management programs, providing a singular, effective intervention during the critical weed-growth stage. Its precise selectivity makes it an essential tool for maintaining high yields in sensitive crops.