960g/L S-metolachlor.

Formulation

Emulsifiable concentrate (EC)

WHO classification

III

Mode of action

Inhibition of cell division.

Rates of application

Apply 0.6-1.6 litres/ha

Targets

Annual grasses and some annual broad-leaved weeds

Main Crops

Maize, beans, sunflowers, sugar cane, and a wide range of other crops.

KEY BENEFITS

Main product benefits

DUAL GOLD is a top performing corn herbicide you can rely on to deliver

Outstanding season-long grass control.

• Flexibility in all maize crop management programs because it offers a wide application window and is the perfect mixing partner for complementary products.
• Excellent selectivity with a superior safety on a wide range of crops.
• Control of annual grass weeds and some annual broad -leavened weeds in pulses, maize and beans mixed crops, and sugarcane.
• Greater Care for the Crops and the Land.

• PRODUCT DESCRIPTION

• MAHINDI-RA 537.5 SE is a pre- and early post-emergence herbicide designed for effective control of annual grasses and broadleaf weeds in maize.
• It contains three active ingredients:

1. S-Metolachlor 375 g/L
2. Terbuthylazine 125 g/L
3. Mesotrione 37.5 g/L

• This combination provides broad-spectrum weed control with both soil and foliar activity.

• Mode of Action

• MAHINDI-RA 537.5 SE combines three complementary modes of action:

• S-Metolachlor (Chloroacetanilide group):
• S-Metolachlor, a herbicide in the chloroacetanilide group, acts primarily as a pre-emergence herbicide by inhibiting the growth of emerging shoots and roots in germinating seedlings. It interferes with the synthesis of very long chain fatty acids (VLCFAs), which are essential for cell division and membrane formation. As a result, susceptible plants fail to develop properly immediately after germination, leading to stunted growth and eventual death.

• Terbuthylazine (Triazine group):
• Terbuthylazine is absorbed mainly through the roots and translocated within the plant. It exerts its herbicidal effect by inhibiting photosynthesis through disruption of the photosystem II electron transport chain. Specifically, it binds to the D1 protein in photosystem II, blocking electron flow and preventing the conversion of light energy into chemical energy. This leads to the generation of reactive intermediates, chlorosis, and eventual plant death.

• Mesotrione (Triketone group):
• Mesotrione acts by inhibiting the 4-hydroxyphenylpyruvate dioxygenase enzyme, which is essential for carotenoid biosynthesis. Carotenoids play a critical role in protecting chlorophyll from photooxidative damage. Inhibition of this enzyme results in depletion of carotenoids, causing chlorophyll degradation and characteristic bleaching of plant tissues. The disruption of photosynthetic function ultimately leads to plant death.
• This multi-site activity ensures effective control of a wide spectrum of weeds and reduces resistance risk.

• Application Guidelines

1. Apply up to 10 days before planting, pre-emergence, or early post-emergence (2–3 leaf stage)
2. Apply once per season
3. Ensure even spray coverage
4. Apply when weeds are actively growing

• Avoid spraying:

1. Under drought stress
2. On damaged or unhealthy weeds
3. Do not contaminate water bodies during application
4. Integrate with good agronomic practices such as:
5. Crop rotation
6. Mechanical weed control
7. Proper field sanitation

• Benefits

1. Broad-spectrum control of grasses and broadleaf weeds
2. Dual action (soil + foliar activity)
3. Effective in pre- and early post-emergence stages
4. Long-lasting residual control
5. Reduces need for multiple weeding operations
6. Enhances early crop establishment
7. Combines three modes of action for improved efficacy

• Mixing Instructions

1. Fill the spray tank halfway with clean water
2. Add the required amount of MAHINDI-RA 537.5 SE
3. Top up with water to the required level
4. Agitate thoroughly to achieve uniform mixing
5. Spray immediately after preparation

• These weeds:
• Compete with maize for nutrients, water, and sunlight
• Reduce crop vigour and stand establishment
• Lower yield potential
• Increase production costs due to repeated weeding
• Poor weed control during early growth stages can result in significant yield losses and reduced farm profitability.