Oreol Maxi, CE

Mechanism of Action and Selectivity

"Oreol Maxi, EC" is based on quizalofop-P-ethyl (125 g/l), belonging to the aryloxyphenoxypropionate class. This systemic herbicide inhibits the acetyl-CoA carboxylase (ACCase) enzyme. Unlike soil-applied products, the focus here is on rapid absorption through leaf surfaces. The active ingredient translocates quickly via the phloem to meristematic tissues, halting lipid synthesis, which effectively arrests the cell division of both annual and perennial grass weeds.

Technical Composition Analysis

The emulsifiable concentrate (EC) formulation is engineered for optimal adhesion to the waxy cuticle of target weeds—a critical factor when dealing with species like couch grass (Elymus repens). The herbicide’s selectivity is rooted in metabolic differences: broad-leaved crops can rapidly metabolize quizalofop-P-ethyl into non-toxic compounds, whereas sensitive grasses suffer irreversible metabolic failure.

Practical Efficiency

• Target Spectrum: The herbicide exhibits high efficacy against hard-to-control species, including couch grass, barnyard grass, foxtail, wild oats, and common windgrass.
• Application Timing: As a post-emergence selective herbicide, "Oreol Maxi" is applied based on the growth stage of the weeds (ideally at the 2–4 leaf stage for annuals) rather than the crop growth stage.
• Crop Compatibility: Due to its selective nature, it is safe for a wide range of broad-leaved crops, spanning from vegetable crops (onions, carrots, tomatoes) to field crops (soybeans, sunflowers, winter rape, flax).

Manufacturing sites Jiangsu Institute of Ecomones Ltd and Jiangsu Agrochem Laboratory Ltd utilize standardized synthesis protocols, ensuring emulsion stability and consistent performance when mixing the solution in field sprayers.