Guron

Mechanism of Action and Selectivity

The herbicide "Guron" is a two-component blend of thifensulfuron-methyl and tribenuron-methyl, both belonging to the sulfonylurea class. This combination provides a distinct synergistic effect: the active ingredients rapidly penetrate the leaf surface to inhibit the acetolactate synthase (ALS) enzyme. This results in the immediate cessation of cell division, stopping weed growth within hours of application.

Practical Value for Winter Cereals

The technological advantage of "Guron" lies in its selectivity. Designed as a post-emergence herbicide, it effectively suppresses broad-leaved weeds, including persistent perennials like creeping thistle and difficult-to-control annuals like common lambsquarters. Due to its systemic action, it remains effective even when weeds have surpassed the cotyledon stage, which is vital during unpredictable spring weather conditions.

Agrotechnical Specifications

• Formulation: Water-dispersible granules ensure high stability in tank mixes and rapid absorption upon contact with the foliage.
• Application Rate: An efficient dose (up to 25 g/ha) reduces pesticide load on the soil and optimizes logistics costs.
• Application Window: The post-emergence nature allows for flexible scheduling of wheat and barley protection, matching the crop's biological growth cycle.
• Safety: Classified as Hazard Class 3, the product requires standard precautions, while the short pre-harvest interval (1 day) minimizes downtime in farm operations.

The manufacturing alliance behind "Guron" (including China Scientific & Intellectual Property Co., Ltd., Nanjing Red Sun Co., Ltd., Jiangsu Golden Chemical Co., Ltd., and others) ensures strict quality control during the synthesis of sulfonylureas, ensuring consistent concentration of active ingredients in every batch.