Florus, WG, herbicide

Technical Profile of Florus, WG: Selective Systemic Herbicide

Florus, WG, manufactured by Vitagro Group, is a systemic selective herbicide designed to combat broad-leaved weeds in winter wheat and corn crops. The core active ingredient is florasulam, a member of the triazolopyrimidine chemical class.

Mode of Action and Selective Efficiency

The herbicide functions by inhibiting the acetolactate synthase (ALS) enzyme. This disruption halts the biosynthesis of essential amino acids (valine, leucine, and isoleucine), causing immediate growth arrest in target weeds. Selectivity is achieved because crop plants rapidly deactivate florasulam, whereas susceptible weeds—such as catchweed bedstraw, common lambsquarters, and scentless mayweed—wither and perish within two to three weeks post-application.

Advantages of the WG Formulation

The product is supplied as water-dispersible granules (WG), providing superior field handling and formulation stability. These granules offer several advantages over traditional powders or liquid concentrates:

• rapid, complete solubility with zero sediment formation;
• low dust generation, enhancing operator safety during mixing;
• long-term physical stability in storage.

Application Guidelines

Florus acts as a post-emergence foliar herbicide. With a recommended rate of up to 25 grams per hectare, it provides robust control against aggressive species including shepherd's purse, common chickweed, and field violet. The systemic nature of the product ensures thorough uptake. Since this is a Hazard Class 2 product, it is critical to adhere strictly to safety protocols and application frequency, limited to one application per season for maximum agronomic efficiency.