Bispyribac-sodium 400g/L SC
Classification:
Herbicide
Formulation:
Bispyribac-sodium 400g/L SC (Suspension Concentrate)
CAS NO:
125401-92-5
USAGE:
Selective post-emergence herbicide for controlling annual and perennial
broadleaf weeds, sedges, and some grasses in rice paddies. Particularly
effective against Echinochloa crus-galli, Cyperus difformis, Monochoria
vaginalis, and other resistant weeds in direct-seeded and transplanted rice.
Pack size:
100mL, 500mL, 1L, 5L, 20L/drum, or as required
Direction for Use
| Crop | Target Weeds | Dosage (400g/L SC) | Application Timing | Remarks |
|---|---|---|---|---|
| Transplanted Rice | Broadleaf weeds & sedges | 100-150 mL/ha | 2-3 weeks after transplanting | 1) REI: 48 hrs 2) Maintain 3-5 cm water level |
| Direct-seeded Rice | Echinochloa spp. | 150-200 mL/ha | Weeds 2-4 leaf stage | Add surfactant (0.1-0.2% v/v) |
| Rice (Resistant Weeds) | Monochoria, Cyperus | 200-250 mL/ha | Early weed growth stage | PHI: 45 days |
| Rice Fields | Mixed weed complex | 175-225 mL/ha | 14-21 days after sowing | Drain field before application |
Product Details
Mode of Action:
-Inhibits acetolactate synthase (ALS enzyme)
-Blocks branched-chain amino acid synthesis
-Systemic action with xylem and phloem mobility
-Visible symptoms appear in 5-7 days
Benefits:
-Excellent control of resistant barnyardgrass
-Effective against sedges and broadleaf weeds
-Safe for rice at recommended doses
-No cross-resistance with ACCase inhibitors
Precautions:
-PPE: Long sleeves, rubber gloves, face shield
-Apply at 200-300 L water/ha
-Do not reflood within 24 hours after application
-Storage: Keep in original container at 0°C to 35°C
Environmental Hazards:
-Highly toxic to aquatic plants
-Do not apply directly to water bodies
-Moderately toxic to fish and algae
-Soil half-life: 10-40 days (aerobic conditions)