Pyrazosulfuron Ethyl belongs to the sulfonylurea group of herbicides. It inhibits the ALS (Acetolactate Synthase) enzyme, stopping essential amino acid formation in weeds. This results in growth arrest and gradual weed death, while transplanted rice remains unaffected at recommended dosage.
Key Features
- Active Ingredient: Pyrazosulfuron Ethyl 10% WP
- Formulation: Wettable Powder (WP)
- Mode of Action: Systemic (ALS inhibitor)
- Application Stage: Pre-emergence
- Weed Spectrum: Sedges, broadleaf weeds & some grasses
- Crop Selectivity: Safe for transplanted paddy
Dosage & Usage Instructions
Per Liter Dosage
0.15–0.2 grams per liter of water
Per Acre Dosage
- 10–15 grams per acre
- Water volume: 120–150 liters per acre
Method of Application
- Apply as uniform broadcast spray
- Use flat-fan nozzle
- Maintain 2–3 cm standing water in field
- Ensure even distribution across soil surface
Time of Application
- 3–5 days after transplanting (DAT)
- Apply before weed emergence for best results
Safety & Correct Usage Tips
- Do not exceed recommended dosage
- Avoid draining water for 2–3 days after spraying
- Do not mix with alkaline chemicals
- Wear gloves, mask, and protective clothing
- Clean equipment thoroughly after use
Suitable Crops
Paddy / Rice (Transplanted)
Why Choose EBS SEVAK Pyrazosulfuron Ethyl 10% WP
- Proven active ingredient for paddy weed management
- Effective control of problematic sedges
- Consistent field performance under Indian conditions
- Low dose requirement with high efficacy
- Trusted formulation for early-stage weed control
Frequently Asked Questions
What is Pyrazosulfuron Ethyl 10% WP used for?
It is used for pre-emergence control of sedges, broadleaf weeds, and some grasses in transplanted rice.
When should Pyrazosulfuron be applied in paddy?
Apply 3–5 days after transplanting, before weeds emerge.
Is Pyrazosulfuron safe for rice crop?
Yes, it is selective to rice when used at recommended dosage and water level.
Does it control sedge weeds effectively?
Yes, it is especially effective against Cyperus (sedge) species.
Can it be used in direct-seeded rice?
It is mainly recommended for transplanted paddy unless advised otherwise by experts.
Conclusion
EBS SEVAK Pyrazosulfuron Ethyl 10% WP is a reliable pre-emergence herbicide for managing early weed problems in paddy. With correct timing and dosage, it helps maintain weed-free fields and supports healthy rice crop establishment.
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