Primadonna, SE

Synergy against weeds: The efficacy of Primadonna, EC

In the segment of crop protection for cereals and corn, "Primadonna, EC" by Shchelkovo Agrokhim (Russian Federation) has long established itself as a reliable tool for controlling a wide range of broad-leaved weeds. By combining florasulam and 2,4-D (in ester form), the product operates on a "double strike" principle, allowing for the rapid suppression of weed competition during critical crop growth stages.

Key Characteristics and Mechanism of Action

This systemic, selective herbicide belongs to the post-emergence class of treatments. The emulsifiable concentrate formulation ensures rapid absorption through the weed leaf surface. Key application aspects include:

• Control Spectrum: Effectively eliminates common lambsquarters, redroot pigweed, shepherd's purse, common chickweed, cleavers, purple dead-nettle, and cornflower.
• Application Guidelines: The recommended application rate is 0.4–0.6 L/ha. It is important to note that the maximum number of treatments is limited to one per season, with a pre-harvest interval of 60 days.
• Crops: Used on winter wheat, rye, barley, triticale, as well as millet, oats, sorghum, and corn.

The systemic action allows the product to move rapidly through the plant's vascular system, inhibiting growth processes within hours of application. This makes Primadonna essential for intensive farming operations where safeguarding yields requires uncompromising control over the field's phytosanitary state.

Market Reputation

Using products from Shchelkovo Agrokhim is justified whenever an agronomist requires predictable results at standard dosages. As a selective herbicide, Primadonna is gentle on crop plants when application regulations are followed, making it an essential component in programs aimed at protecting crops from dominant weed species.