Herbicide
ORYZALIN 2% + BENZOXATHIOLONE 3% OF
A selective pre-emergence Oil-based Flowable (OF) herbicide that provides effective control of annual grasses, sedges, and selected broadleaf weeds in rice. The combination offers residual weed control during the critical early stages of crop growth, ensuring better crop establishment and improved yield potential.
Active: Oryzalin + Benzoxathiolone
Formulation: OF (Oil-based Flowable)
Selective Pre-Emergence
HRAC Group 3 Action
Product Information
Mode of Action
Oryzalin (HRAC Group 3) inhibits microtubule assembly and cell division in germinating weed seedlings, blocking root and shoot growth during early emergence. Benzoxathiolone enhances broad-spectrum weed control through residual soil activity, providing extended pre-emergence suppression of susceptible weed species in paddy environments.
Target Weeds
- Echinochloa crus-galli (Barnyardgrass)
- Echinochloa colona (Jungle Rice)
- Cyperus difformis
- Fimbristylis miliacea
- Monochoria vaginalis
- Ludwigia spp.
- Annual grasses, sedges, and selected broadleaf weeds
Recommended Application Guidance
| Crop | Target Weeds | Dosage & Method of Application |
|---|---|---|
| Rice (Direct-Seeded & Transplanted) | Annual grasses, sedges & selected broadleaf weeds | Apply as a pre-emergence treatment immediately after sowing or within 3–5 days after transplanting at the recommended label dosage. Ensure adequate soil moisture or a shallow water layer for optimum residual weed control. |
For specific L/ha or ml/ha dosage rates and local field water management guidelines across direct-seeded and transplanted rice, please refer to the registered product label or consult local agricultural extension specialists.
Application Instructions
1. Pre-Emergence Timing Window
Apply as a pre-emergence spray immediately following sowing in direct-seeded rice, or within 3–5 days after transplanting in paddy fields, prior to weed emergence.
2. Water Management & Residual Activation
Ensure adequate soil moisture or maintain a shallow, standing water layer (3–5 cm) after application to properly incorporate the oil-based flowable formulation into the soil seed germination layer.
Safety & Environmental Care
Always wear appropriate personal protective equipment (gloves, goggles, face mask, protective suit) during handling, mixing, and application. Avoid spray drift onto non-target crops and nearby aquatic habitats. Store in original sealed container in a cool, dry, well-ventilated location away from food, drink, and animal feed.