Pyramid

Mechanism of Action and Selectivity

«Pyramida» by Defenda is a systemic, selective post-emergence herbicide formulated as a soluble concentrate based on clopyralid. Unlike broad-spectrum desiccants, this product acts as a synthetic auxin. Upon contact with the leaf surface, the active ingredient is translocated through the phloem and xylem to the weed's growth points. At the cellular level, it disrupts cell division and metabolic processes, leading to characteristic tissue deformation and the subsequent necrosis of susceptible weed species such as black nightshade, scentless mayweed, creeping thistle, and cornflower.

Technical Application Details

Designed for professional field use, the product demonstrates high selectivity within recommended dosage rates of 0.5 to 1.0 L/ha. Because it is a post-emergence herbicide, it is engineered to be applied while both the crop and weeds are in active growth phases. The systemic nature ensures that the chemical reaches deep into the root systems of perennial weeds, providing a lasting control effect without compromising the health of the primary crop—be it forage beet, winter rapeseed, mustard, corn, or cereals.

Key Operational Characteristics

• Formulation Quality: The soluble concentrate provides superior solubility, ensuring that no residue clogs the sprayer nozzles, which is critical for achieving uniform coverage during application.
• Treatment Regime: The product is rated for one application per season, necessitating precise timing—typically when weeds are at the 2–6 true leaf stage—to maximize efficacy.
• Safety and Handling: Classified as a Hazard Class 3 chemical, the product requires standard PPE protocols, offering a balance between effective chemical control and manageable operational risks during storage and handling.

By effectively removing competitive weed pressure early in the growth cycle, Pyramida provides essential support for crop development, ensuring that nutrient and water resources remain available for the cultivated plant.