Classification:
Herbicide
Formulation:
Pyrazosulfuron-ethyl 10% WP (Wettable Powder)
CAS NO:
93697-74-6
USAGE:
Selective pre- and post-emergence herbicide for controlling annual broadleaf
weeds and sedges in rice paddies. Effective against Cyperus difformis,
Monochoria vaginalis, Lindernia spp., and other problematic weeds in rice
cultivation.
Pack size:
100g, 500g, 1kg, 5kg, 25kg/drum, or as required
Crop | Target Weeds | Dosage (10% WP) | Application Timing | Remarks |
---|---|---|---|---|
Paddy Rice (Transplanted) | Broadleaf weeds & sedges | 150-200 g/ha | 3-7 days after transplanting | 1) REI: 48 hrs 2) Maintain 3-5 cm water layer |
Paddy Rice (Direct-seeded) | Monochoria, Lindernia | 100-150 g/ha | 2-3 leaf stage of weeds | Apply to moist soil, avoid drainage |
Rice (Upland) | Cyperus species | 200-250 g/ha | Pre-emergence to early weed stage | PHI: 60 days |
Mode of Action:
-Inhibits acetolactate synthase (ALS)
-Blocks branched-chain amino acid synthesis
-Systemic action absorbed by roots and foliage
Benefits:
-Excellent crop safety for rice varieties
-Long residual control (6-8 weeks)
-Low use rate (10-25g a.i./ha)
-Compatible with most rice herbicides
Precautions:
-PPE: Mask, gloves, protective clothing
-Do not apply to water-stressed crops
-Avoid spray drift to adjacent crops
-Storage: Keep dry at 0°C to 35°C
Environmental Hazards:
-Moderately toxic to aquatic plants
-Avoid contamination of irrigation channels
-Half-life in soil: 20-40 days (pH dependent)
-Degrades rapidly in alkaline conditions