Nikobria

Nicobria is a sulfonylurea herbicide for maize, and it is unusual in covering both grass and broadleaf weeds in a single post-emergence pass — including johnsongrass and couch grass, the perennials that cost maize growers most. The oil dispersion formulation carries the active through the leaf cuticle more reliably than a conventional suspension, which matters in dry conditions.

Characteristics

• —Controls grasses and broadleaf weeds in maize from one application
• —Effective on johnsongrass and couch grass, including from rhizome
• —Oil dispersion formulation improves uptake through the leaf cuticle
• —Post-emergence flexibility — treat what actually emerges
• —Very low use rate
• —HRAC Group B/2

How it works

Nicosulfuron inhibits acetolactate synthase (ALS), halting synthesis of valine, leucine and isoleucine. Susceptible weeds stop growing within hours and die over one to three weeks. Maize metabolises it rapidly, which gives the selectivity — but maize varieties differ in tolerance, so check varietal restrictions. HRAC Group B/2.