Classification:
Herbicide
Formulation:
Pretilachlor 500g/L EC (Emulsifiable Concentrate)
CAS NO:
51218-49-6
USAGE:
Pre-emergence herbicide for controlling annual grasses and broadleaf weeds in
transplanted rice (paddy). Highly effective against Echinochloa crus-galli,
Cyperus difformis, Fimbristylis miliacea, and other major rice weeds.
Pack size:
500mL, 1L, 5L, 20L/drum, or as required
Crop | Target Weeds | Dosage (500g/L EC) | Application Timing | Remarks |
---|---|---|---|---|
Transplanted Rice | Barnyardgrass, sedges | 600-750 mL/ha | 3-5 days after transplanting | 1) Maintain 3-5 cm water layer 2) REI: 48 hrs |
Direct-seeded Rice | Annual broadleaves | 450-600 mL/ha | Pre-emergence (0-2 DAS) | Use with safener for better crop safety |
Wet-seeded Rice | Monochoria, Fimbristylis | 500-650 mL/ha | Before weed emergence | PHI: 60 days |
Mode of Action:
-Inhibits very long-chain fatty acid synthesis (VLCFAs)
-Disrupts cell membrane formation in germinating weeds
-Systemic action with limited translocation
Benefits:
-Excellent control of major rice weeds
-Extended residual activity (4-6 weeks)
-Water-based application ensures uniform distribution
-Compatible with most rice herbicides
Precautions:
-PPE: Neoprene gloves, face shield
-Do not drain treated water to fish ponds
-Apply to saturated soil or standing water
-Storage: Keep in original container at 0°C to 35°C
Environmental Hazards:
-Highly toxic to aquatic organisms
-Avoid application near waterways
-Moderate persistence (soil half-life 30-40 days)
-Low volatility under normal conditions