Mefenacet
Description
Mefenacet is a potent active ingredient belonging to the oxyacetamide chemical class. It is primarily utilized as a selective systemic herbicide designed to control a variety of annual grass weeds in agricultural settings. Due to its specific chemical structure, it offers highly targeted weed control with minimal impact on the physiology of protected crops.
The mode of action for Mefenacet is centered on the inhibition of meristematic tissue growth in susceptible weed species. By blocking cell division within the growth zones, the active substance prevents the development of the shoot and root systems at the early stages of germination. This metabolic disruption ensures that weeds do not compete with crops during the critical establishment phase.
This herbicide is most commonly employed in paddy rice cultivation. It is highly effective against major threats such as Echinochloa species (barnyard grass) and other problematic weeds that thrive in aquatic environments. Its formulation allows for stable performance in flooded conditions, which is essential for successful weed management in commercial rice production systems.
Application practices require careful consideration of water management within the fields. For optimal efficacy, the chemical must be applied during the weed germination period, ensuring an even distribution throughout the water column or soil surface. The systemic nature of the compound ensures that it is absorbed efficiently by the developing weed seedlings, providing a prolonged residual effect.
- High selectivity for rice crops.
- Excellent long-term soil residual activity.
- Control of grass weeds resistant to other herbicidal groups.
- Efficient application at low dosage rates.
Safety precautions are mandatory when handling Mefenacet to ensure both applicator health and environmental protection. Personal protective equipment, including gloves and respirators, should always be worn. Furthermore, strict protocols must be followed regarding water discharge from treated fields, as the compound can be hazardous to aquatic life if concentrations are not properly managed according to label instructions.
Status in the European Union
Not approved in the EU
- CAS number
- 73250-68-7
- Category (EU)
- HB - Herbicide
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.