Composition & Formulation
- Active ingredient: bentazone 48% w/v (480 g/l)
- Formulation: Soluble concentrate (SL)
Spectrum of Action
- Crops:
- Maize (corn)
- Rice
- In other countries, also used on beans, peas, potatoes, and horticultural crops
- Weeds:
- Annual and perennial broadleaf weeds
- Annual and perennial grasses
Mode of Action
- Acts as a photosystem II inhibitor, disrupting the photosynthesis process
- Absorbed mainly through the leaves and, to a lesser extent, through the roots, with localized or limited systemic movement (systemic/apoplastic)
- Weeds stop growing, turn yellow and dry up—the effects are visible within about 2 days
Usage & Dosage
- Application rate: Typically 3 l/ha (2 l/ha for maize/rice — according to Chemia)
- Application stage:
- Post-emergence—when weeds are at early stages (2–7 leaf stages depending on the crop)
- Conditions:
- Optimal temperature: 15–22 °C
- Avoid rainfall for at least 6 hours before or after application
- Do not apply insecticides within 7 days of use
Safety Instructions
- Always use according to the product label and the Safety Data Sheet (SDS)
- Suitable for high-coverage spraying—ensure complete weed coverage
- Avoid application on stressed crops (e.g., due to drought, rainfall, etc.)
Conclusion
Benta 480 SL, containing 48% bentazone, is a fast and effective post-emergence herbicide suitable for maize, rice, and other crops. It is designed to control both broadleaf and grassy weeds at their early growth stages. Proper application timing, dosage, and adherence to environmental conditions are essential for optimal efficacy and safety.
