Classification:
Herbicide
Formulation:
Quinclorac 100 + Cyhalofop-butyl 70 OD (Oil Dispersion)
CAS NO:
Quinclorac: 84087-01-4
Cyhalofop-butyl: 122008-85-9
USAGE:
Dual-action herbicide for post-emergence control of both grassy and broadleaf
weeds in rice fields. Particularly effective against:
-Echinochloa crus-galli (Barnyard grass)
-Leptochloa chinensis (Chinese sprangletop)
-Cyperus difformis (Smallflower umbrella sedge)
-Monochoria vaginalis (Heartshape false pickerelweed)
Pack size:
500mL, 1L, 5L, 20L/drum, or as required
| Crop | Target Weeds | Dosage (17% OD) | Application Timing | Remarks |
|---|---|---|---|---|
| Paddy Rice (Transplanted) | Barnyard grass, Sedges | 800-1000 mL/ha | 2-4 leaf stage of weeds | 1) Maintain 3-5 cm water level 2) REI: 48 hrs |
| Direct-seeded Rice | Annual grasses | 600-800 mL/ha | 10-15 days after sowing | Apply to moist soil |
| Rice (Aerobic) | Complex weed flora | 1000-1200 mL/ha | Early post-emergence | Add surfactant (0.2% v/v) |
Mode of Action:
-Quinclorac : Synthetic auxin (HRAC Group 4)
Causes abnormal growth in susceptible plants
-Cyhalofop-butyl : ACCase inhibitor (HRAC Group 1)
Blocks fatty acid synthesis in grasses
Benefits:
-Broad-spectrum control of grasses + sedges + broadleaves
-Excellent crop safety in rice (selective action)
-Synergistic effect between active ingredients
-Rainfast within 6 hours of application
Precautions:
-PPE: Coveralls, rubber boots, nitrile gloves
-Do not drain treated water to adjacent fields
-Avoid application under strong sunlight (>35°C)
-Storage: Keep in original container at 0°C to 35°C
Environmental Hazards:
-Highly toxic to aquatic plants/algae
-Moderate persistence (soil half-life 30-60 days)
-Do not apply near irrigation channels
-PHI: 60 days for rice harvest