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Metolachlor 50% EC

A Powerful Pre-emergent Herbicide for Effective Weed Control


Metolachlor 50% EC is a high-performing pre-emergent herbicide renowned for its exceptional stability and selectivity. As a crucial tool in modern agriculture, it offers efficient weed management by inhibiting the growth of undesirable plants before they emerge. This herbicide stands out due to its remarkable compatibility with tank mix partners, providing a comprehensive solution for a wide array of weed control challenges.

Quick Facts

  • Xylem Systemic: Metolachlor operates as a xylem systemic herbicide, which means it is absorbed by the plant and moves through its vascular system. This mode of action ensures that the herbicide reaches the crucial parts of the weed for effective control.
  • Very Low Volatilization: Volatilization refers to the conversion of a substance into vapor or gas. Metolachlor has minimal volatilization tendencies, reducing the risk of unintended movement and potential harm to non-target plants.
  • High Photo Stability: Metolachlor exhibits impressive resistance to degradation caused by sunlight (photodegradation), ensuring its longevity and efficiency in varying environmental conditions.

Crops and Targets:Soyabean

Metolachlor 50% EC is primarily designed for application on soybean crops. It effectively targets a range of problematic weed species that can hinder soybean growth and reduce yields. Notable weed species controlled by Metolachlor include:

  • Amaranthus viridis: Also known as green amaranth, this weed competes with soybeans for vital nutrients and resources.
  • Digitaria spp.: These grassy weeds, commonly referred to as crabgrass, can rapidly overtake soybean fields if left unchecked.
  • Echinochloa spp.: Echinochloa, or barnyard grass, competes aggressively for water and nutrients, impacting soybean productivity.
  • Eleusine indica: Also called goosegrass, this weed poses a threat due to its rapid growth and competitive nature.
  • Cyperus spp.: These sedges can be problematic in soybean fields, affecting overall crop health.
  • Panicum spp.: Panicum species, including panic grass, are known to reduce soybean yields by competing for essential resources.

Formulation and Mode of Action

Metolachlor 50% EC operates through a unique mode of action – it inhibits the growth of seedling shoots by interfering with long-chain fatty acid production. This mechanism prevents the emergence and development of weeds, providing an effective preemptive strike against unwanted vegetation. It is recommended to apply Metolachlor within 0-3 days of weed preemergence to achieve optimal results. The herbicide is absorbed by the growing shoots of weeds and, to a certain extent, by their germinating roots.


  • Pre-emergent Selective Herbicide: Metolachlor’s pre-emergent action ensures that weeds are targeted before they have a chance to compete with crops for essential resources. This selective characteristic minimizes damage to the desired plants.
  • Control on Grasses & Broadleaf Weeds: Metolachlor effectively tackles a wide spectrum of weeds, including both grasses and broadleaf species. This versatility contributes to comprehensive weed management.
  • Long-Lasting Residual Control: The residual effect of Metolachlor ensures that weed suppression continues beyond the initial application, reducing the need for frequent reapplication.
  • Excellent Crop Safety: Metolachlor is engineered to exert its impact on weeds without compromising the health and growth of soybean crops. This ensures that the intended plants can thrive without the hindrance of weed competition.

In conclusion, Metolachlor 50% EC stands as a reliable and indispensable tool for modern agriculture. Its xylem systemic nature, minimal volatilization tendencies, and high photo stability contribute to its effectiveness and reliability. Targeting a variety of problematic weed species in soybean fields, this pre-emergent herbicide ensures crop safety while providing lasting residual control. Its role as an excellent tank mix partner further bolsters its versatility, offering farmers a comprehensive solution for their weed management needs.




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