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Introduction

Mesotrax Herbicide (Metribuzin 40% WP) is a selective herbicide formulated as a wettable powder (WP) containing 40% metribuzin. Metribuzin is an inhibitor of photosynthesis, specifically targeting the plastoquinone binding protein (Q_B) site in photosystem II. By disrupting the electron transport chain in photosystem II, metribuzin prevents the formation of ATP and NADPH, which are essential energy sources for plant growth and development. This disruption leads to chlorosis (yellowing), stunted growth, and ultimately, plant death.

Active Ingredient and Mode of Action

The active ingredient in Mesotrax Herbicide, metribuzin, is a triazine herbicide that mimics the natural plant growth regulator plastoquinone. When absorbed by susceptible plants, metribuzin binds to the Q_B binding site in photosystem II, interfering with the electron transport chain. This interference prevents the formation of ATP and NADPH, which are essential energy sources for plant growth and development.

The lack of ATP and NADPH disrupts various cellular processes, including photosynthesis, carbohydrate metabolism, and protein synthesis. These disruptions lead to chlorosis, stunted growth, abnormal plant development, and eventually, plant death.

Application Methods

Mesotrax Herbicide can be applied as a pre-emergence or early post-emergence herbicide, either as a foliar spray or a soil drench.

• Pre-emergence application: Apply the herbicide before the emergence of weeds, typically within 2-3 days after planting or transplanting.

• Early post-emergence application: Apply the herbicide when weeds are small and actively growing, typically within 7-10 days after emergence.

• Foliar spray: Mix the recommended dosage of Mesotrax Herbicide with water and apply it to the leaves of weeds until they are thoroughly wet.

• Soil drench: Mix the recommended dosage of Mesotrax Herbicide with water and apply it to the soil around the base of crop plants or non-crop areas.

Dosage Rates

The recommended dosage rate of Mesotrax Herbicide varies depending on the target weed, crop, soil type, and application method. Consult the product label for specific dosage instructions.

Precautions

When handling and applying Mesotrax Herbicide, follow these precautionary measures to ensure safety:

• Wear protective clothing, including gloves, goggles, and a respirator.

• Avoid contact with skin and eyes.

• Do not apply the herbicide in windy conditions.

• Wash hands thoroughly after handling the product.

• Dispose of empty containers responsibly.

• Avoid using near water sources or aquatic habitats.

• Do not use on bees or other beneficial insects.

Storage and Shelf Life

Store Mesotrax Herbicide in a cool, dry place, away from direct sunlight and heat. When stored properly, the product has a shelf life of two years.

Conclusion

Mesotrax Herbicide (Metribuzin 40% WP) is a versatile and effective herbicide that provides pre-emergence and early post-emergence control of a wide range of annual and perennial broadleaf weeds in various crop and non-crop applications. Its selective action, favorable environmental profile, and long-lasting residual activity make it a valuable tool for integrated pest management (IPM) programs. However, it is important to use Mesotrax Herbicide responsibly and in accordance with label instructions to minimize potential risks to human health and the environment.