Mercury

Systemic Weed Control: How Mercuriy Functions

At the heart of the «Mercuriy» herbicide is tribenuron-methyl, an active ingredient within the sulfonylurea chemical class. As a systemic, selective herbicide, it absorbs through the leaf surface and translocates into the meristematic tissues of the weed. The mechanism of action is the inhibition of the acetolactate synthase enzyme, which halts the biosynthesis of essential amino acids: valine and isoleucine. Consequently, cell division stops within hours of application, leading to the complete death of weeds within two to three weeks.

Technical Specifications and Application

The product is formulated as a water-suspension concentrate, which simplifies the preparation of the stock solution and ensures optimal mixing within the sprayer tank. Its high selectivity makes «Mercuriy» an ideal choice for winter wheat and winter barley, effectively targeting a wide range of broadleaf annual and perennial weeds.

• Selectivity: Cereal crops metabolize the active ingredient, effectively neutralizing it and ensuring safety for the grain while targeting invasive species.
• Application Flexibility: Designed as a post-emergence herbicide, it allows farmers to intervene precisely when weeds are most vulnerable.
• Dosage Efficiency: The recommended application rate ranges from 0.015 to 0.05 kg/ha, depending on the weed infestation density of the field.

The Importance of Systemic Action

Unlike contact herbicides, Mercuriy translocates via both phloem and xylem. This is critical in dense crop stands where the weed canopy may be partially shielded by the crop. The systemic effect ensures that even if spray coverage is not uniform, the active ingredient distributes throughout the entire weed anatomy, preventing regeneration and secondary growth.

The product is manufactured by a consortium of leading Chinese chemical companies (including Nanjing Red Sun Co., Ltd., Jiangsu Golden Chemical Co., Ltd., and others), ensuring precise active ingredient concentration and stable field performance. With a hazard class of 3, the product is intended for a single application per season, which is sufficient to achieve the desired control. It remains a robust technical solution for growers seeking efficient, selective broadleaf protection in cereal production.