Sprint, EC (Sprint, EC)

Systemic Control Technology for Grass Weeds

Sprint, EC from Sharda Cropchem is a selective herbicide designed on the principle of systemic absorption of the active ingredient through the leaf surface. Unlike soil-applied products, the key factor here is the speed of penetration through the leaf cuticle and subsequent translocation to growth points, specifically the rhizomes of perennial grasses.

Mechanism of Action and Formulation

The emulsifiable concentrate (EC) formulation is the most effective choice for post-emergence weed control. It ensures rapid wetting of the waxy cuticle and uniform distribution across the leaf surface without the need for aggressive external adjuvants. The systemic action allows the herbicide to block lipid biosynthesis in meristematic tissues, which is critical for the complete elimination of couch grass (Elymus repens) and other perennial monocots.

• Selectivity: The product is formulated for use on broad-leaved crops (soybean, sunflower, beet, rapeseed), allowing for the management of grass weed infestations without phytotoxic effects on the primary crop.
• Application Phase: Post-emergence (insurance) application allows the grower to assess the actual level of weed pressure and adjust the dosage rate within the 0.5–1.0 l/ha range.
• Guidelines: The protocol specifies a single application per season, requiring precise timing to maximize impact on active weed growth phases.

It is important to note the hazard class (2): application requires standard safety measures and careful consideration of weather conditions. The systemic effect works by inhibiting the weed’s enzymatic processes, meaning visual signs of mortality (chlorosis, necrosis) appear 7–14 days after treatment, depending on temperature and moisture levels.