Pyrazosulfuron-ethyl 10% + Bispyribac-sodium 20% WP
Classification:
Herbicide
Formulation:
Pyrazosulfuron-ethyl 10% + Bispyribac-sodium 20% WP (Wettable Powder)
CAS NO:
Pyrazosulfuron-ethyl: 93697-74-6
Bispyribac-sodium: 125401-92-5
USAGE:
Broad-spectrum post-emergence herbicide for rice paddies, controlling annual
grasses, sedges, and broadleaf weeds including barnyardgrass, flatsedge,
bulrush, and Monochoria species. Provides both foliar and residual control.
Pack size:
100g, 500g, 1kg, 5kg, 25kg/drum, or as required
Direction for Use
| Crop | Target Weeds | Dosage (30% WP) | Application Timing | Remarks |
|---|---|---|---|---|
| Transplanted rice | Echinochloa crus-galli, Cyperus difformis | 150-200 g/ha | 7-15 days after transplanting | 1) Maintain 3-5 cm water layer 2) REI: 48 hrs |
| Direct-seeded rice | Leptochloa chinensis, Monochoria vaginalis | 200-250 g/ha | 2-4 leaf stage of weeds | Drain field before application |
| Rice nurseries | Broadleaf weeds, sedges | 100-150 g/ha | Pre-emergence to 2-leaf stage | PHI: 60 days |
Product Details
Mode of Action:
-Pyrazosulfuron-ethyl: Inhibits acetolactate synthase (ALS)
-Bispyribac-sodium: Inhibits acetyl-CoA carboxylase (ACCase)
-Dual mechanism prevents resistance development
-Systemic action with xylem and phloem mobility
Benefits:
-Controls both grasses and broadleaf weeds
-Extended residual activity (4-6 weeks)
-Rainfast within 6 hours
-Synergistic effect reduces application rates
Precautions:
-PPE: Full protective suit, rubber boots, face shield
-Do not apply when temperature exceeds 35°C
-Maintain water layer for 3-5 days after application
-Storage: Keep in dry place below 30°C
Environmental Hazards:
-Highly toxic to aquatic plants
-Do not apply near irrigation channels
-Moderate persistence (half-life 15-40 days)
-Low risk of groundwater contamination