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Krishikranti Sevak Pyrazosulfuron Ethyl 10% WP is a selective, systemic, post-emergence pyrazosulfuron ethyl herbicide developed for weed control in transplanted paddy. It belongs to the sulfonylurea group and works at a very low dose to clear broadleaf weeds and sedges from the rice field within 15–20 days of spray.
This pyrazosulfuron herbicide is most effective when applied 0–15 days after transplanting (DAT), while weeds are still in the 2–4 leaf stage and standing water is maintained in the field.
| Parameter | Recommendation |
|---|---|
| Dose per acre | 80 g |
| Dose per hectare | 200 g |
| Water volume | 200 L/acre (500 L/ha) |
| Best application stage | 8–12 DAT (Days After Transplanting) |
| Field condition | Maintain 2–5 cm standing water for 3–5 days post-spray |
| Crop | Transplanted Rice (Paddy) |
| Type | Selective, systemic, early post-emergence |
Always read the label before use. Spray during cool hours (morning/evening). Do not drain the field for at least 3 days after application.
For grassy weeds like Echinochloa (Sawa/Sanwak), tank-mix or sequential application with a grass-active herbicide is recommended. See our Bispyribac Sodium 10% SC for broader-spectrum paddy weed control.
Pyrazosulfuron ethyl is an ALS (Acetolactate Synthase) inhibitor. After spraying, the molecule is absorbed by both leaves and roots of the weed and moves systemically through the plant.
Inside the weed, it blocks the ALS enzyme, which is responsible for producing branched-chain amino acids (valine, leucine, isoleucine) essential building blocks for plant growth. Without these amino acids, cell division stops.
Visible symptoms appear within 3–7 days: growth stops, leaves turn yellow/reddish, and weeds die completely within 15–20 days.
Because the paddy crop metabolises pyrazosulfuron ethyl rapidly, transplanted rice remains unaffected making it a true selective herbicide for paddy.
For a complete weed management plan, read our blog: Effective Herbicides for Weed Control in Paddy.
Krishikranti Pyrazosulfuron Ethyl 10% WP धान (paddy) की फसल में चौड़ी पत्ती वाले खरपतवार (broadleaf weeds) और मोथा (sedges) को नियंत्रित करने वाला चयनात्मक खरपतवारनाशी है।
| Technical Name | Pyrazosulfuron Ethyl 10% WP |
| Brand | Krishikranti |
| Chemical Group | Sulfonylurea |
| Category | Selective Herbicide / Weedicide |
| Formulation | WP (Wettable Powder) |
| Target Crop | Paddy (Rice) |
Pyrazosulfuron ethyl 10 WP is used as a selective post-emergence herbicide in transplanted paddy to control broadleaf weeds and sedges such as Cyperus, Monochoria, Eclipta, and Fimbristylis.
The recommended dose is 80 g per acre (200 g per hectare), mixed in 200 litres of water.
Spray between 8 to 12 days after transplanting (DAT), when weeds are at the 2–4 leaf stage and the field has 2–5 cm of standing water.
No. It is mainly effective against broadleaf weeds and sedges. For grassy weeds like Echinochloa (Sawa), tank-mix or use a sequential spray with a grass-active herbicide such as Bispyribac Sodium 10% SC.
Yes. When used at the recommended dose and stage, it is fully selective and safe for transplanted rice. The paddy plant rapidly breaks down the molecule.
No. Keep 2–5 cm of standing water in the field for at least 3–5 days after spraying for the herbicide to work effectively.
Visible yellowing and growth stoppage starts in 3–7 days. Complete weed death is seen within 15–20 days of spray.
It is primarily registered for transplanted paddy. For DSR, consult your local agriculture officer or check the label, as timing and dose differ.
It inhibits the ALS (Acetolactate Synthase) enzyme in weeds, blocking branched-chain amino acid synthesis and stopping cell division.
You can buy genuine Krishikranti Pyrazosulfuron Ethyl 10% WP directly from Krishi Bhandar's Herbicide Collection with doorstep delivery across India.
