Aria 40 MD

Technological Advantages of Oil Dispersion

A key feature of "Aria 40 MD" is its formulation: oil dispersion (OD). Unlike traditional emulsion concentrates or suspensions, the oil base acts as a natural adjuvant. Upon contact with the maize leaf surface, the oil creates a uniform micro-film that prevents rapid droplet evaporation and ensures prolonged penetration of nicosulfuron into weed tissues. This is critical in drought conditions when weed cuticles become dense.

Systemic Action of Nicosulfuron

The active ingredient, nicosulfuron (40 g/L), belongs to the sulfonylurea class. Its mechanism of action is based on blocking the acetolactate synthase enzyme, which halts the synthesis of essential amino acids (valine and isoleucine). In the field, this leads to a rapid cessation of weed growth just hours after spraying. Being a systemic herbicide, it moves through the xylem and phloem to target growth points, allowing it to effectively eliminate even rhizomatous perennial grasses like quackgrass.

Practical Application Details

• Dosage Selection: The range of 1.0–2.0 L/ha provides flexibility based on field infestation levels. Minimum doses are sufficient for early growth stages, while maximum rates are required for overgrown or high-density weed patches.
• Application Timing: The product is a post-emergence herbicide applied after maize has emerged (typically at the 3–6 leaf stage). Missing this window significantly reduces efficiency against overgrown grasses.
• Selectivity: Maize has the ability to rapidly metabolize nicosulfuron into non-toxic compounds, making "Aria 40 MD" safe for the crop when application regulations are followed.

Using this TerraVita Ukraine product allows for a radical solution to field weed problems without inducing phytotoxic stress in the main crop, directly contributing to higher yield potential.