Grinfort Light, RK (imazamox, 33 g/l + imazapir, 15 g/l)

Synergy of Imidazolinones for Controlling Complex Weeds

Grinfort Light is a systemic herbicide that operates at the deep metabolic level of weeds. Its efficacy is rooted in the combination of two active ingredients from the imidazolinone group: imazamox (33 g/l) and imazapir (15 g/l). This dual-action formulation allows for the suppression of a broad spectrum of dicotyledonous and grassy weeds by blocking the synthesis of essential amino acids required for cell growth and division.

How it works: Mechanisms of Action

The key feature of this product is its high selectivity, specifically engineered for sunflower crops. Due to its systemic nature, the herbicide rapidly penetrates the leaf surface and translocates via xylem and phloem to reach the meristematic growth points. This is critical for controlling resilient species such as quackgrass (Agropyron repens), field thistle (Cirsium arvense), and common ragweed (Ambrosia artemisiifolia). Inhibition of the acetolactate synthase (ALS) enzyme halts weed growth within hours of application, with complete necrosis occurring within 2 to 4 weeks.

Technical Specifications and Performance

The product is formulated as a soluble concentrate (SC), ensuring excellent solubility and stability of the spray solution. As a post-emergence herbicide, it is best applied during the active vegetative growth phase of weeds (2 to 4 true leaves), which minimizes early-season competition with the sunflower crop for water and nutrients.

• Spectrum of Activity: Effectively suppresses amaranth, mustard, wild radish, black nightshade, and barnyard grass.
• Efficiency: A dosage rate of 1–1.2 l/ha provides robust protection during critical stages of crop development.
• Production Reliability: The partnership between Trustchem (China) and AgroMaxi (Ukraine) ensures stringent adherence to synthesis protocols, which is vital for the product's crop selectivity.

This herbicide requires strict adherence to the application guidelines: no more than one treatment per season. The systemic nature of the formulation allows for consistent weed control even under moderate drought conditions, as imidazolinones maintain their mobility and activity within the plant tissue.